The invention provides a telescoping charging chute (10) for coke oven battery, comprising an inlet section (12) and a sealing section (16), wherein the inlet section (12), and sealing section (16) are tubular or annular, respectively defining an inlet section axis (X) and a sealing section axis (Z). According to the invention, the telescoping charging chute (10) further comprises an intermediate section (14), the intermediate section (14) being tubular or annular and defining an intermediate section axis (Y), the intermediate section (14) is pivotably connected to the inlet section (12) and the sealing section (16) and arranged therebetween, thereby defining a continuous charging passage, and the telescoping charging chute further comprises a centering mechanism (18) configured to exert a force on the sealing section (16) when the intermediate section axis (Y) is at an angle with the inlet section axis (X), thereby biasing the sealing section axis (Z) vertically.
A coke dry quenching plant (10) and a method for coke dry quenching and off-gas treating, wherein the coke dry quenching plant (10) comprises: a cooling chamber (12) for cooling hot coke down to a predefined temperature; an off-gas conduct (15) for conducting the gas from an off-gas outlet (14) of the cooling chamber (12) to a heat recovery apparatus (18); a first dedusting unit (16) for dedusting the gas, wherein the first dedusting unit (16) is arranged in the off-gas conduct (15) downstream of the cooling chamber (12) and upstream of the heat recovery apparatus (18); the heat recovery apparatus (18) being configured to cool the gas down to a predefined first temperature range; a first fan unit (20) arranged downstream of the heat recovery apparatus; wherein the coke dry quenching plant further comprises a sub- economizer unit (24) arranged downstream of the first fan unit (20) and connected to the cooling chamber (12) via a process cooling gas conduct (26) and wherein the sub- economizer unit (24) is connected to a regenerative thermal oxidizer (40) via an excess gas conduct (30); wherein the sub-economizer unit (24) and/or the process cooling gas conduct and/or the excess gas conduct is/are configured to distribute or split the gas into the process cooling gas conduct (26) and/or the excess gas conduct (30); and feeding gas exiting the regenerative thermal oxidizer (40) as a recirculation gas through a recirculation conduct (46) into the off-gas conduct (15).
F23G 7/06 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
3.
COMMUNICATING INFORMATION REGARDING AN INDUSTRIAL MACHINE TO AN OPERATOR BY USING A COMMUNICATION ASSISTANT THAT IS SPECIFIC TO OPERATOR CONTEXT
A computer provides communication assistance to communicate information regarding an industrial machine to an operator. The computer detects (413) an operator context of the operator from context data that it receives from the industrial machine. The computer has a plurality of data modules are adapted to process (443) a query to obtain a response. The computer activates (423-A, 423-B) at least one data module from the plurality of data modules, according to the detected operator context. When the computer receives (433-1) a question from the operator, it translates (433-2) the question to the query (340-Q) and directs (433-3) the query (340- Q) to one of the activated data modules. The computer also translates (453-1) the response (340-R) to an answer (350-A) and forwards (453-2) the answer (350-A) to the operator.
A method for reducing carbon footprint in operating a metallurgical plant for producing pig iron, including: pre-heating iron ore fines in a first electric pre-heater to obtain pre-heated iron ore fines partially reducing the pre-heated iron ore fines in one or more fluidized bed reactors in the presence of a hot reducing gas to obtain partially reduced iron; feeding the partially reduced iron to a submerged arc furnace; further reducing and melting the partially reduced iron within the submerged arc furnace in the presence of a carbonaceous material to obtain molten pig iron; where the hot reducing gas includes hydrogen, syngas, off-gas of the submerged arc furnace, other off-gases from the metallurgical plant, or mixtures of two or more thereof, where the syngas is produced from natural gas or biomethane, blast furnace gas, off-gas of the submerged arc furnace, other off-gases from the metallurgical plant, or mixtures of two or more thereof in the presence of air or oxygen enriched air, steam or carbon dioxide in one or more reforming reactors, where the hot reducing gas has a temperature above 550° C., and where the partially reduced iron has a metallization degree of 55 to 75%.
A method for operating a coke oven plant, comprising providing a blast furnace gas stream and a coke oven gas stream treating a part of the blast furnace gas stream in a CO converter unit to obtain a treated blast furnace gas stream, subjecting the treated blast furnace gas stream in a CO2-depletion unit to obtain a primary CO2-depleted blast furnace gas stream, mixing the primary CO2-depleted blast furnace gas stream with a proportion of the blast furnace gas stream in a first mixing unit to obtain a secondary CO2-depleted blast furnace gas stream, mixing the secondary CO2-depleted blast furnace gas stream with a proportion of the coke oven gas stream in a second mixing unit to obtain a tertiary CO2-depleted gas stream, feeding said tertiary CO2-depleted gas stream to an underfiring system of a coke oven from the coke oven plant to convert coal to coke thereby producing a coke oven gas and an exhaust gas, where properties of the secondary CO2-depleted blast furnace gas stream are determined by a first analyzer downstream the first mixing unit are determined by properties of the tertiary CO2-depleted gas stream in a second analyzer downstream the second mixing unit, wherein the proportion of the blast furnace gas stream and the proportion of the coke oven gas stream are controlled based on said properties determined by said first and second analyzers to adjust at least one of CO2 content, CO content, H2 content, Wobbe Index, stoichiometric combustion air demand and Lower Heating Value in said tertiary CO2-depleted gas stream thereby controlling operation of the underfiring system.
C10B 21/10 - Regulating or controlling the combustion
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
C10B 21/08 - Heating of coke ovens with combustible gases by applying special heating gases
C10K 3/06 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by mixing with gases
6.
HARMONIZING PARAMETER DATA FOR USE IN DIGITAL TWINS
In a computer-implemented method (400) for harmonizing parameter data, a computer receives (410) - from a component (110-xx) of an industrial machine - a source parameter dataset (221-xx) that represents a technical parameter. The source parameter dataset (221- xx) has a source parameter identifier (231-xx) and a source parameter value (241-xx). The computer uses a first pre-trained sub-network (330) to match (420) the source parameter identifier (231-xx) to a target parameter identifier (232-xx). The computer uses a second pre- trained sub-network (340) to match (430) the source parameter value (241-xx) to a target parameter value (242-xx). The second sub-network (340) is being selected according to the target parameter identifier (232-xx). The computer forwards (440) both the target parameter identifier (232-xx) and the target parameter value (242-xx) to a user-interface that shows a user-interface element that corresponds to the component (110-xx) of the industrial machine and that visualizes the target parameter value (242-xx).
Electric stove for heating a reducing gas, the electric stove including: a hollow metal shell body extending along a longitudinal direction; a refractory lining arranged on an inner surface portion of the shell body; a plurality of bricks arranged in adjacent layers extending along the longitudinal direction, where each brick includes a plurality of cavities extending straight along the longitudinal direction through the respective layer, where the cavities of adjacent layers are aligned to one another, whereby a plurality of channels for conducting the reducing gas is formed; and a plurality of heating wires for heating the reducing gas, wherein each heating wire has a diameter smaller than a diameter of a channel, and where each heating wire extends at least partially through at least one corresponding channel of the plurality of channels, such that when the electric stove is operated, a predefined heat amount is dissipated by each heating wire to a reducing gas flowing around the heating wire.
A method for operating a blast furnace plant having a blast furnace and an ammonia reforming plant, the method including the steps of feeding a stream of ammonia to the ammonia reforming plant, cracking the stream of ammonia in the ammonia reforming plant to produce a reducing gas, feeding an iron oxide containing charge and the reducing gas into the blast furnace, and reducing iron oxide inside the blast furnace by reaction between the iron oxide containing charge and the reducing gas, where the reducing gas comprises less than 15% of ammonia.
A computer (200) obtains a pressure set-point (p_set) for a programmable controller (170) that is associated with an oven (100) and that controls the gas pressure (p(t)) inside the oven (100). The controller (170) receives pressure data (p(t)) from a pressure sensor and interacts with a pressure valve. From a camera (140) that is located external to the oven (100), the computer (200) obtains a leakage-area image that shows an area (130) of the external surface of the oven (100) where gas emissions can be present. The computer (200) processes the image by a pre-trained network to classify a degree (d(t)) of emissions. By applying pre-defined rules, and depending on the classified degree (d(t)), the computer (200) changes the set-point (p_set) for the programmable controller (170).
22222 and CO; and wherein the enhanced pyrolysis gas is transported through the combined integrated charcoal pyrolysis metallurgical plant to be valorized, in particular to be further used as a fuel gas, as a reducing gas and/or as a carburization gas.
C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
C10K 1/04 - Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
C10K 3/00 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
A method for producing iron containing products includes: operating a blast furnace plant to produce liquid pig iron from blast furnace charge material, whereby metallurgical gas having blast furnace top gas is generated; operating a direct reduction plant to produce direct reduced iron products from iron ore loaded into the top of a direct reduction furnace, a stream of reducing gas being introduced into the direct reduction furnace, the direct reduction plant including a reformer or heater device from which the stream of reducing gas is discharged, whereby top gas is generated by the direct reduction furnace; where a first stream of direct reduction plant top gas is treated in an enriching stage configured for enriching in reducing species, and forwarded to the blast furnace plant to be used therein as reducing gas; and where a first stream of the metallurgical gas (B3/B6) is forwarded to the reformer or heater device of the direct reduction plant to be used therein as fuel gas. Also disclosed is a corresponding metallurgical plant.
37 - Construction and mining; installation and repair services
Goods & Services
(1) Repair of industrial ovens; coating of brickwork; replacement of roofs in coke batteries; installation, changing, replacement and repair of roofs in coke batteries; erection of prefabricated buildings and structures; erection of reinforced concrete structures utilising sliding and climbing formworks; assembly [installation] of industrial ovens, in particular coke ovens.
A method for operating a blast furnace is presented, said method comprising the steps of collecting a stream of blast furnace gas from the blast furnace; feeding said stream of blast furnace gas and a hydrocarbon containing gas to a reforming plant comprising at least one reformer; reforming said stream of blast furnace gas and said hydrocarbon containing gas in the reforming plant en to produce a stream of syngas; and feeding at least a portion of said stream of syngas to the blast furnace; wherein a stream of h % is added to the hydrocarbon containing gas before step (c) and/or to the stream of blast furnace gas before step (c) and/or to the stream of syngas before step (d) and/or to the tuyere of the blast furnace, wherein the feeding of at least a portion of said stream of syngas to the blast furnace occurs through the shaft of the blast furnace and/or through the tuyere of the blast furnace, and wherein the utilization efficiency of the hydrogen in a blast furnace plant comprising the blast furnace, the reforming plant and a cowper plant is above 60%.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Cameras; digital cameras; surveillance cameras; network
monitoring cameras; artificial intelligence software;
artificial intelligence software for surveillance; network
monitoring cameras for surveillance; video cameras adapted
for monitoring purposes; artificial intelligence software
for analysis; interactive software; interactive software
based on artificial intelligence; programming software;
reporting software; science software; machine control
software; industrial automation software; environmental
monitoring software; software used to control gas emissions;
gas emissions analysers; gas testing instruments; gas
sensors; gas flow monitors; apparatus for analysing gases;
monitoring instruments. Research in the field of artificial intelligence;
development of computer programs for analysis of gas
emissions; software engineering; software development;
software installation; development of software; updating of
software; environmental monitoring services; environmental
testing and inspection services; services for monitoring
industrial processes; design and development of software for
monitoring the gas emissions; computer engineering;
engineering research; engineering testing; engineering
services for the control and analysis of gas emissions;
scientific analysis; conducting industrial tests; inspection
of plant and machinery; conducting sampling and analysis
services to assess pollution levels; technical consulting in
the field of pollution detection; engineering services in
the field of environmental technology.
A computer-implemented failure predictor has a module arrangement (373) with first and second sub-ordinated modules (313, 323) that are sub-ordinated to an output module (363). The first and a second sub-oriented modules process data from an industrial machine to determine first and second intermediate status indicators. A third sub-oriented module (333) determines an operation mode indicator, and the output module (363) processes the status indicators and the operation mode indicator to predict a failure of the industrial machine. The module arrangement has been trained by cascaded training to comprises to train the sub-ordinated modules (312, 322, 332), to subsequently operate the trained sub-ordinated modules, and to subsequently train the output module.
A cooling system for a metallurgical furnace includes a plurality of cooling arrangements having each a set of cooling elements arranged to extract heat from the furnace, the cooling elements having each at least one internal cooling channel for a coolant fluid, where the cooling elements are fluidly connected within each cooling arrangement; at least one discharge piping associated with each cooling arrangement for discharging the coolant fluid towards a main collector, where a flow regulating arrangement is serially mounted with the discharge piping and configured to control a flow rate of the coolant fluid therethrough and hence through the cooling arrangement, where the flow regulating arrangement includes a calibrated orifice defining a default, minimal flow cross section for the coolant fluid and a regulating valve selectively operable to define a variable, additional flow cross-section.
A sintering belt (10) comprising a chain of grate cars (12); a supporting structure configured to support and allow movement of the chain of grate cars (12); at least two longitudinal sealing elements, parallel to a direction of motion (D) of the chain of grate cars (12) along the sintering or induration belt (10); at least two transversal sealing elements (14), intersecting with the direction of motion (D) of the chain of grate cars (12) along the sintering or induration belt (10), and partially obstructing its motion; and at least one suction duct (16). The suction duct (16), the at least two longitudinal sealing elements, the at least two transversal sealing elements (14) and a bottom surface of grate cars (12) are configured to define at least one plenum chamber (PC). The suction duct (16) is further configured to generate an under or over pressure in said plenum chamber (PC). A transversal sealing element (14) comprises at least one sealing roll (18, 18.1-18.15), the sealing roll (18, 18.1-18.15) configured to partially obstruct the motion of the chain of grate cars (12), and the sealing roll (18, 18.1-18.15) comprising an inner roll (18a) defining an inner radius and an elastically deformable outer sleeve (18b) defining an outer radius, and a transversal sealing element (14) comprises a plurality of parallel sealing rolls (18, 18.1-18.15) defining at least one roller table (20). A roller table (20) comprises at least two engaging sealing rolls (18.1-18.5), such that the distance between two adjacent engaging sealing rolls (18.1-18.5) is strictly comprised between the sum of their inner radii and the sum of their outer radii, consecutive engaging sealing rolls (18.1-18.5) defining a continuous surface (20') of the roller table (20).
A method for providing raw material for an industrial process, in particular for steel production, the method including torrefying a torrefaction material, which contains biomass, in a reactor by thermochemically treating the torrefaction material at 200° C. to 600° C., to obtain bio coal, extracting the bio coal from the reactor at a first temperature of up to 600° C., providing bulk materials at a second temperature between 0° C. and 100° C., mixing bio coal with bulk material, thereby cooling down the bio coal with the bulk material and obtaining a mixture of bulk material and bio coal at a third temperature, below the self-ignition temperature of the mixture, and using the mixture to provide the raw material for the industrial process.
The disclosure discloses a method of operating an electric arc furnace, the method comprising capturing, from at least one facility of a steel mill, a heated metallurgical gas comprising water and carbon monoxide; conducting, by a reactor supply line, said metallurgical gas to a reactor; transforming, by a treatment of said metallurgical gas within said reactor, the carbon monoxide and water into hydrogen and carbon dioxide according to a water-gas shift reaction; and subsequently separating said hydrogen by a separation device. The method is characterized in that it further comprises providing an iron-bearing material, which comprises iron mainly in the form of iron oxide, to the electric arc furnace; at least partially melting the iron-bearing material to obtain a molten bath; conducting, by a furnace supply line, said hydrogen to the electric arc furnace, which is arranged downstream of the furnace supply line; and injecting, by a plurality of hydrogen injection devices, said hydrogen into said electric arc furnace, such that said hydrogen reacts as a reducing agent for reducing iron oxide in the molten bath during a smelting operation of the electric arc furnace.
A moving floor for transport of a load along a transport direction comprises a deck composed of a plurality of elongate elements extending parallelly to the transport direction, a base, and a plurality of rollers mounted between the base and the deck. At least one elongate element has an elongate tubular portion extending parallelly to the transport direction and at least one roller of the plurality of rollers is a concave roller, the outer circumferential rolling surface of which having an annular recess extending in circumferential direction, said at least one elongate tubular portion being supported by the least one concave roller such that the tubular portion is at least partially fitted inside the annular recess of said concave roller.
B65G 25/06 - Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors having carriers, e.g. belts
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Cameras; digital cameras; surveillance cameras; network monitoring cameras; artificial intelligence software; artificial intelligence software for surveillance; network monitoring cameras for surveillance; video cameras adapted for monitoring purposes; artificial intelligence software for analysis; interactive software; interactive software based on artificial intelligence; programming software; reporting software; science software; machine control software; industrial automation software; environmental monitoring software; software used to control gas emissions; gas emissions analysers; gas testing instruments; gas sensors; gas flow monitors; apparatus for analysing gases; monitoring instruments. (1) Research in the field of artificial intelligence; development of computer programs for analysis of gas emissions; software engineering; software development; software installation; development of software; updating of software; environmental monitoring services; environmental testing and inspection services; services for monitoring industrial processes; design and development of software for monitoring the gas emissions; computer engineering; engineering research; engineering testing; engineering services for the control and analysis of gas emissions; scientific analysis; conducting industrial tests; inspection of plant and machinery; conducting sampling and analysis services to assess pollution levels; technical consulting in the field of pollution detection; engineering services in the field of environmental technology.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Cameras; digital cameras; surveillance cameras; network monitoring cameras; artificial intelligence software; artificial intelligence software for surveillance; network monitoring cameras for surveillance; video cameras adapted for monitoring purposes; artificial intelligence software for analysis; interactive software; interactive software based on artificial intelligence; programming software; reporting software; science software; machine control software; industrial automation software; environmental monitoring software; software used to control gas emissions; gas emissions analysers; gas testing instruments; gas sensors; gas flow monitors; apparatus for analysing gases; monitoring instruments. Research in the field of artificial intelligence; development of computer programs for analysis of gas emissions; software engineering; software development; software installation; development of software; updating of software; environmental monitoring services; environmental testing and inspection services; services for monitoring industrial processes; design and development of software for monitoring the gas emissions; computer engineering; engineering research; engineering testing; engineering services for the control and analysis of gas emissions; scientific analysis; conducting industrial tests; inspection of plant and machinery; conducting sampling and analysis services to assess pollution levels; technical consulting in the field of pollution detection; engineering services in the field of environmental technology.
23.
GENERATING VIRTUAL SENSORS FOR USE IN INDUSTRIAL MACHINES
An industrial machine (123) may not have a sensor for a particular parameter, so that a computer uses a neural network (473) to virtualize the missing sensor. The computer trains the neural network (373) to provide a parameter indicator (Z′) of a further process parameter (173, z) for the industrial machine (123) with steps that comprise receiving measurement time-series with historical measurement data from reference machines, obtaining transformation rules by processing the time-series to feature series that are invariant to domain differences of the reference machines, transforming time-series by using the transformation rules, receiving a uni-variate time-series of the further process parameter (z), and training the neural network with features series at the input, and with the uni-variate time-series at the output.
C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
C01B 3/34 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
C10K 3/02 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment
A Computer identifies a parameter state transition with a predicted occurrence in the future, wherein the parameter state transition is a critical transition due to a predicted increase in the likelihood that the operation mode of an industrial machine changes in the future, wherein the operation mode is a technical state of the machine. The computer processes an operational multi-variate time-series ({{X}}_op) by processing an operational multi-variate time-series ({{X}}_op) that represents the operation of the particular industrial machine (101) during a particular operation time-interval (T_op) that is ongoing at present (t_current). The computer provides a future multi-variate time-series ({X}_ft) that represents the predicted operation of the particular industrial machine (101) during a particular prediction time-interval (T_ft) that reaches into the future. The computer anticipates (423) the parameter state transition (11a, 31) if both of the following conditions are complied with (i) t least one particular parameter is predicted to have a value that will be different from a reference value in at least one deviating segment; (ii) the likelihood for the change in the operation mode of the industrial machine is predicted to be increased.
Coke oven door sealing device for sealing a coke oven door against a sealing surface of a coke oven door frame of a coke oven chamber, the coke oven door sealing device comprising: a coke oven door having a panel unit for closing the coke oven chamber; a fixture device for holding a sealing piece in a peripheral area of the coke oven door opposite to the sealing surface; the sealing piece, wherein the sealing piece is configured to be operated in a first operating state or a second operating state; wherein, in a first operating state, the sealing piece is spaced at a first distance from the sealing surface arranged opposite of the sealing piece; wherein, in a second operating state, the sealing piece contacts the sealing surface; such that in the second operating state, the sealing piece and the panel unit at least partially shape a cavity and wherein the coke oven door sealing device (1) further comprises a first insulation element (14) for thermally insulating the sealing piece (13), wherein the first insulation element (14) is arranged on the fixture device (11).
A method for operating a blast furnace plant that includes a blast furnace, at least one material hopper for charging raw materials to the blast furnace, having a upper seal valve and a lower seal valve, and at least one hot stove that produces hot blast for the blast furnace, the method including at least one charging cycle with the following steps: opening the upper seal valve, introducing raw materials into the material hopper, closing the upper seal valve, pressure equalization of the material hopper with blast furnace top pressure, and opening the lower seal valve to discharge raw materials into the blast furnace, wherein, in order to provide a cost-effective way to minimize the explosion danger during operation of a top charging system, an offgas from the at least one hot stove is transferred by a transfer system to the at least one material hopper and, before the lower seal valve is opened, the offgas is injected into the material hopper.
An injector for injecting a hot gas, in particular for injecting a heated reduction gas in a furnace or reactor, comprises a tubular body (12) extending along a main axis (L) between a mounting portion (18) configured for fixing the injector to the furnace and a nose portion (14) to be arranged inside the furnace, the tubular body comprising an inner gas passageway (20) for guiding a heated gas from an inlet orifice (22) at the mounting portion to at least one outlet orifice (16) at the nose portion. The tubular body (12) includes a feed coolant channel (40) and a return coolant channel (42) defined between cooperating inner and outer tubes (30, 34), wherein the feed and return coolant channels are formed as interlaced helical channels extending in the main axis direction in a same layer.
An iron ore reducing and melting apparatus comprising: - a furnace comprising from bottom to top: a hearth, a tuyere level, a shaft level and a top level, said blast furnace comprising at least one first gas injector on the tuyere level - at least one first reducing gas generator connected to the at least one first gas injector, wherein the apparatus is adapted to provide reducing gas comprising 30-100 % (vol/vol) hydrogen on the tuyere level and to operate at a coke rate of below 200 kg/t hot metal.
A method for operating a smelting furnace installation, in particular a blast furnace installation, the method comprising - feeding coke, iron oxide containing material and if required fluxing agents to the top of the smelting furnace, - injecting a first reducing gas containing hydrogen at a tuyere level of the smelting furnace at a temperature above 1600 °C, - injecting oxygen at the tuyere level of the smelting furnace, and - injecting a second reducing gas at a lower shaft level of the smelting furnace, wherein coke is fed at a lump coke rate below 220 kg/t HM, preferably below 200 kg/t HM and more preferably below 180 kg/t HM and wherein the rate of oxygen injected at the tuyere level is below 120 Nm3/t HM, preferably below 112 Nm3/t HM.
A method for operating a smelting furnace installation, in particular a blast furnace installation, the method comprising - feeding coke, iron oxide containing material and if required fluxing agents to the top of the smelting furnace, - injecting a first reducing gas containing hydrogen at a tuyere level of the smelting furnace at a temperature above 1600 °C, and - injecting a second reducing gas at a lower shaft level of the smelting furnace, wherein coke is fed at a lump coke rate below 220 kg/t HM, preferably below 200 kg/t HM and more preferably below 180 kg/t HM and wherein the density of the first reducing gas is below 0.80 kg/Nm3, preferably below 0.60 kg/Nm3and most preferably below 0.30 kg/Nm3.
The invention relates to the production of direct reduced iron, DRI, where a hydrogen direct reduction is synergistically operated in the context of an industrial plant. The hydrogen reduction operates with reducing gas comprising at least 85 vol. % hydrogen, and receives a make-up hydrogen stream. At least part of the make-up hydrogen stream is produced on site. by at least one of (i) electrolysis means configured to produce hydrogen from steam recovered from one or more components of the industrial plant and/or from steam generated using waste heat and/or hot gases emitted by the one or more components; and (ii) gas shift reactor means configured to convert CO-bearing gas emitted by at least one component of the industrial plant into hydrogen and to remove CO2.
C21B 13/00 - Making spongy iron or liquid steel, by direct processes
C21B 13/02 - Making spongy iron or liquid steel, by direct processes in shaft furnaces
C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
33.
ESTIMATING ELEMENT CONTENT IN MOLTEN MATERIAL AT OPENINGS OF METALLURGICAL VESSELS
A system (1000) with a computer (200) estimates the content of a particular chemical element in molten material that is available at an opening (110) of a metallurgical vessel (100). In that system (1000), a pyrometer (140-P) monitors the opening (110) and provides radiation data (150-P) that represent the thermal radiation from molten material at the opening. The computer (200) estimates the content by a pre-trained module (250) that processes the radiation data (250). As phenomena (160) at the opening (110) - among them accretion, fumes or reflections - may interfere with the estimation, the system (1000) further comprises a camera (140-C) that monitors the opening (110), and comprises an image classification module (260) that identifies the phenomena (160). The computer (200) increases the overall estimation accuracy by obtaining a phenomena-based reliability classification (RC), to filter out non-reliable radiation data from being processed, or to disregard content that would be based on non-reliable radiation data.
G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
34.
ESTIMATING ELEMENT CONTENT IN MOLTEN MATERIAL AT OPENINGS OF METALLURGICAL VESSELS
A computer (203) estimates the content (273) of a particular chemical element in molten material (303) that is available at an opening (113) of a metallurgical vessel (103). From a pyrometer (143-P) that is arranged to monitor the opening (113), the computer (203) receives feature-enhanced radiation data (153-P, 153-F) that represent the thermal radiation 5 from the molten material (303) at the opening (113). The computer (203) operates a processing module (253) that processes the radiation data (153-P). The module (253) has a regression model to estimate the content (273) of the particular chemical element, and the processing module (253) has been trained in advance.
G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
The invention proposes a method of repairing or replacing a roof of a coke oven battery in operation, said coke oven battery comprising a number of parallel coking chambers separated by heating walls and delimited on top by a ceiling, itself covered by a roof, the roof comprising for each coking chamber a first plurality of charging holes or gas transfer holes above said coking chamber, a second plurality of inspection holes above said separating heating walls, one or two base rings connected to one or two gas collecting mains and rail sleepers supporting rails for a coke charging car or charging gas transfer car through an ascension pipe. The invention also proposes a kit of parts with construction modules and the use of such kit of parts in the repairing or replacing of a roof of a coke oven battery in operation and or with at least one oven empty in hot condition.
The invention provides a tuyere that comprises a conical hollow tuyere body with an inner surface and an outer surface, the tuyere extending along a first axis from an inlet end to an opposite outlet end, the tuyere body having a tuyere tip at the outlet end and a conical connection surface at the inlet end. The conical connection surface is configured for engaging a conical seat of a tuyere holder or tuyere cooler. Advantageously, the tuyere further comprises a corrugated portion on the outer surface of the tuyere. The corrugated portion comprises at least one recess having an open curved profile and a surface enclosing the at least of recess. The corrugated portion is arranged and configured for, during operation of the metallurgical furnace, supporting burden material and forming a scaffold of the burden material.
A method for operating a blast furnace for producing of pig iron, comprising the steps of including
heating a stream of hydrocarbon gas and a stream of steam in a first heater to provide a heated stream of hydrocarbon gas and steam,
feeding and partially reforming the heated stream of hydrocarbon gas and steam in a pre-reformer to provide a stream of partially reformed syngas,
heating a first stream of blast furnace gas from the blast furnace and the stream of partially reformed syngas in a second heater, before or after their mixing together, to provide a heated carbon feed stream,
reforming the heated carbon feed stream in a secondary reformer to provide a second stream of syngas, and
feeding said second stream of syngas to the shaft of the blast furnace.
The invention proposes a method of repairing or replacing a roof of a coke oven battery in operation, said coke oven battery comprising a number of parallel coking chambers separated by heating walls and delimited on top by a ceiling, itself covered by a roof, the roof comprising for each coking chamber a first plurality of charging holes or gas transfer holes above said coking chamber, a second plurality of inspection holes above said separating heating walls, one or two base rings connected to one or two gas collecting mains and rail sleepers supporting rails for a coke charging car or charging gas transfer car through an ascension pipe. The invention also proposes a kit of parts with construction modules and the use of such kit of parts in the repairing or replacing of a roof of a coke oven battery in operation and or with at least one oven empty in hot condition.
In a method for producing a spray nozzle device, in particular for spraying a casting strand during casting of metallic products, the spray nozzle device includes a basic body with an air inlet, a water inlet and a nozzle body with a mixing chamber for producing an air/water mixture which emerges through at least one nozzle outlet. The air inlet is formed by at least one air inlet nozzle, with a nozzle tip projecting into the mixing chamber, and has at least one air outlet hole. The water inlet opens into the mixing chamber close to the nozzle tip of the air inlet through at least one water outlet hole oriented transversely to a longitudinal axis of the mixing chamber. At least one part region of the spray nozzle device is produced by a generative production process, preferably operating as a 3D printing process.
Coke oven door sealing unit for sealing a coke oven door against a sealing surface of a coke oven door frame of a coke oven chamber, the coke oven door sealing unit including: a coke oven door for fitting into the coke oven door frame of the coke oven chamber; a fixture device for holding a sealing piece opposite to the coke oven door frame in a peripheral area of the coke oven door; the sealing piece, where the sealing piece is configured to be operated in a first operating state or a second operating state; a seal protection element for isolating the sealing piece from the coke oven chamber; where, in a first operating state, the sealing piece is spaced at a first distance from a sealing surface arranged opposite of the sealing piece; and where, in a second operating state, the sealing piece contacts the sealing surface; such that in the second operating state, the sealing piece and the seal protection element at least partially form a cavity.
A heat storage device such as a hot blast stove including a heat regeneration checkerwork made of checker bricks, the checkerwork being supported by a support assembly (16). In accordance with an aspect of the present disclosure, the support assembly having a carrier structure made of refractory material and carrier floor also made of refractory material, the carrier floor resting on the carrier structure and being arranged and formed to carry the checker bricks of the checkerwork.
F28D 17/02 - Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using rigid bodies, e.g. of porous material
43.
BLAST FURNACE WITH SHAFT FEEDING OF HOT PROCESS GAS
A shaft furnace, in particular a blast furnace, comprises includes an outer metal shell; a plurality of tuyeres arranged to inject hot blast into the shaft furnace; and means for injecting process gas in the shaft stack area, where the injector has a nozzle body with a peripheral wall extending along a longitudinal axis from a front portion, with at least one injection hole, to an opposite rear portion connected to a base member, where the nozzle body includes an inner gas channel for guiding process gas from an inlet port in the base member to the injection holes(s), nozzle body being mounted through an aperture in the metal shell in such a way that the front region with injection hole(s) is located on the inner side of the metal shell, whereas the rear portion is outside of the metal shell, and the base member includes a peripheral mounting portion configured for connecting the injector in a gas tight manner to a mounting unit surrounding the aperture in the metal shell.
Computer system, computer-implemented method and computer program product are provided for training a reinforcement learning model to provide operating instructions for thermal control of a blast furnace, where a domain adaptation machine learning model generates a first domain invariant dataset from historical operating data obtained as multivariate time series and reflecting thermal states of respective blast furnaces of multiple domains, a transient model of a generic blast furnace process is used to generate artificial operating data as multivariate time series reflecting a thermal state of a generic blast furnace for a particular thermal control action, a generative deep learning network generates a second domain invariant dataset by transferring the features learned from the historical operating data 21 to the artificial operating data, where the reinforcement learning model determines a reward for the particular thermal control action in view of a given objective function by processing the combined first and second domain invariant datasets, and dependent on the reward, the second domain invariant data set is regenerated based on modified parameters, and repeating the determining of the reward to learn optimized operating instructions for optimized thermal control actions to be applied for respective operating states of one or more blast furnaces.
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
A method for operating a blast furnace for producing of pig iron, includes the following steps
heating a first stream of steam in a first heater, before or after having been mixed with an oxygen source selected from oxygen and oxygen-enriched air, to provide a first heated stream of oxygen-enriched steam;
heating a first stream of blast furnace gas from the blast furnace and a first stream of natural gas in a second heater, before or after being mixed together, to provide a heated carbon feed stream;
feeding the first heated stream of oxygen-enriched steam and the heated carbon feed stream either as a combined stream or separately to a catalytic partial oxidation reactor to produce a stream of syngas; and
feeding the stream of syngas to the shaft of the blast furnace.
A computer differentiates parameters to find critical parameters (CP) that cause abnormal operation of an industrial machine. The computer receives and obtains (410, 420) multi-variate time-series (501, 502 that represents the operation of the machine or that serve as reference. The computer identifies (430) a time-series that deviate from the reference at least in a segment, and for activity-specific replacement variations, the computer selects (441) deviating segments within the series according to a particular replacement variation (v), replaces (442) the deviating segments, and determines (443) an error value (L(v)). The computer then determines (450) the variation for that the error value (L(v)) has its lowest value and provides the determination as an identification of the critical parameter (CP) to the operator of the machine.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Common metals and their alloys, ores; metal materials for
building and construction; transportable buildings of metal;
non-electric cables and wires of common metal; small items
of metal hardware; metal containers for storage or
transport; furnace fireguards; furnace screens; refractory
furnace linings of metal; all the aforementioned products
used in the field of metallurgical and iron and steel
industry. Steel- and metalworking machines, namely blast furnaces and
sorting machines for industrial use; furnace loading
machines; machines used in the field of industrial furnaces;
mixers for furnace repair materials; machine tools,
power-operated tools used in the metallurgical and iron and
steel industry. Blast furnaces; Hot blast furnaces for industrial purposes;
burners, boilers and heaters; combustion furnaces;
industrial furnaces; casting furnaces; refractory furnaces;
smelting furnaces; induction furnaces; shaped fittings for
blast furnaces; furnaces for melting metals; electric
furnaces for metallurgical purposes; electric furnaces for
industrial use. Installation, maintenance and repair of industrial furnaces;
providing information relating to the repair or maintenance
of industrial furnaces; furnace rebricking and rebuilding;
installation and repair of furnaces and smelters;
construction of industrial furnaces; providing information
relating to the repair and maintenance of industrial
furnaces. Treatment of materials, namely briquetted iron in the field
of metallurgical industry; Leasing of energy generating
equipment; Processing of iron oxides; Treatment of slag
arising from metal casting; Heat treatment of ores; sorting
of waste and recyclable materials [transformation]; metal
melting services; gas processing services; all the
aforementioned services provided in the field of
metallurgical and iron and steel industry. Scientific and technological services in the industrial and
metallurgical field; industrial analysis and research
services in the field of iron and steel industry and the
ferrous and non-ferrous metal-working industry; design and
development of computer hardware and software for use in the
metallurgical industry; technical research in the field of
metallurgical processes in blast furnaces.
48.
EXCHANGEABLE COOLED NOSE WITH CERAMIC INJECTOR PASSAGE
A gas injection system for a blast furnace or shaft furnace or metallurgical furnace comprising a furnace wall and a cooling plate wherein the gas injection system comprises a gas distribution pipe, one or more injectors having a nozzle, wherein the nozzle comprises a ceramic insert, wherein the cooling element has a hot side, turned away from the furnace wall, wherein a protrusion is attached to the hot side of said cooling plate, wherein the ceramic insert traverses the furnace wall and the cooling plate and the protrusion on cooling plate and wherein the ceramic inserts have an adaptable length so that they either protrude inside the furnace, or that they are flush with a hot face of the cooling plate or stay slightly in retreat with a hot face of the cooling plate.
A reducing gas injection system for a blast furnace having a blast furnace wall, the system including a reducing gas distribution pipe, one or more injectors mounted to the blast furnace wall at a shaft level, where the reducing gas distribution pipe is attached to the blast furnace wall or its supporting structure, where the injector(s) have a nozzle body with a peripheral wall extending along a longitudinal axis from a front portion, with at least one injection hole, to an opposite rear portion with an inlet port, where the nozzle body includes an inner gas channel for guiding reducing gas from the inlet port to the injection holes(s); where the nozzle body is mounted trough an aperture in the blast furnace wall in such a way that the front portion with the injection hole(s) is located on an inner side of the blast furnace, whereas the rear portion with the inlet port is outside of the blast furnace wall, where the nozzle body includes a peripheral mounting portion configured for connecting the injector in a gas tight manner to the aperture in the blast furnace wall, where the inlet port is in fluidic connection with the reducing gas distribution pipe by means of an injector stock, the injector stock including a feeding pipe connected to the reducing gas distribution pipe, an elbow connected to the feeding pipe and an injector pipe connected to the elbow, the injector pipe being flange mounted in a gas tight manner to the inlet port of the injector and the injector pipe and/or an outlet of the elbow having at least one cardan compensation joint.
A process for operating an oxidizable combustion gas cleaning unit in a metallurgical plant, comprising the steps of: (a) passing an oxidizable combustion gas from a metallurgical reactor, in particular a blast furnace gas from a blast furnace, in a packed bed scrubber arrangement through a packed bed in countercurrent with a washing water or in a spray scrubber arrangement to remove cyanide compounds, in particular hydrogen cyanide, and to increase the removal of chloride compounds, in particular hydrogen chloride, from said combustion gas by solubilizing said cyanide and chloride compounds in said washing water, (b) collecting the washing water containing solubilized cyanide and chloride compounds at a bottom end of the packed bed or spray scrubber arrangement, and (c) collecting a cleaned oxidizable combustion gas at a top of the packed bed or spray scrubber arrangement, wherein a base is added to the washing water before step (a).
A method of operating a metallurgic plant for producing iron products includes the following steps, wherein the metallurgic plant includes a direct reduction plant and an ironmaking plant, the metallurgic plant:
feeding an iron ore charge into the direct reduction plant to produce direct reduced iron products,
operating the ironmaking plant to produce pig iron, wherein biochar is introduced into the ironmaking plant as reducing agent, and whereby the ironmaking plant generates offgas containing CO and CO2, and treating offgas from the ironmaking plant in a hydrogen enrichment unit to form a hydrogen-rich stream and a CO2-rich stream. The hydrogen-rich stream is fed directly or indirectly to the direct reduction plant. The CO2-rich stream is converted to be valorized in the direct reduction plant.
A method of operating a metallurgic plant for producing iron products includes the following steps, wherein the metallurgic plant includes a direct reduction plant and an ironmaking plant, the metallurgic plant:
feeding an iron ore charge into the direct reduction plant to produce direct reduced iron products,
operating the ironmaking plant to produce pig iron, wherein biochar is introduced into the ironmaking plant as reducing agent, and whereby the ironmaking plant generates offgas containing CO and CO2, and treating offgas from the ironmaking plant in a hydrogen enrichment unit to form a hydrogen-rich stream and a CO2-rich stream. The hydrogen-rich stream is fed directly or indirectly to the direct reduction plant. The CO2-rich stream is converted to be valorized in the direct reduction plant.
A corresponding metallurgic plant is also related.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
40 - Treatment of materials; recycling, air and water treatment,
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Common metals and their alloys, ores; metal materials for building and construction; transportable buildings of metal; non-electric cables and wires of common metal; small items of metal hardware; metal containers for storage or transport; furnace fireguards; furnace screens; refractory furnace linings of metal; all the aforementioned products used in the field of metallurgical and iron and steel industry Steel- and metalworking machines, namely, blast furnaces and sorting machines for industrial use; furnace loading machines; machines used in the field of industrial furnaces; mixers for furnace repair materials; machine tools, power-operated tools used in the metallurgical and iron and steel industry Treatment of materials, namely, briquetted iron in the field of metallurgical industry; Leasing of energy generating equipment; Processing of iron oxides; Treatment of slag arising from metal casting; Heat treatment of ores; sorting of waste and recyclable materials [transformation]; metal melting services; gas processing services; all the aforementioned services provided in the field of metallurgical and iron and steel industry Blast furnaces; Hot blast furnaces for industrial purposes; burners, boilers and heaters; combustion furnaces; industrial furnaces; casting furnaces; refractory furnaces; smelting furnaces; induction furnaces; shaped fittings for blast furnaces; furnaces for melting metals; electric furnaces for metallurgical purposes; electric furnaces for industrial use Installation, maintenance and repair of industrial furnaces; providing information relating to the repair or maintenance of industrial furnaces; furnace rebricking and rebuilding; installation and repair of furnaces and smelters; construction of industrial furnaces; providing information relating to the repair and maintenance of industrial furnaces Scientific and technological services in the industrial and metallurgical field; industrial analysis and research services in the field of iron and steel industry and the ferrous and non-ferrous metal-working industry; design and development of computer hardware and software for use in the metallurgical industry; technical research in the field of metallurgical processes in blast furnaces
53.
METHOD FOR SUPPLYING RAW MATERIAL TO A SINTER PLANT
A method for supplying raw material to a sinter plant and facilitating a sinter process with reduced consumption of fossil fuels, provides that a mixed material is used to supply raw material, wherein the mixed material includes particulate iron-containing material and particulate pyrolised biomass in mixed form. The iron-containing material is preferably iron ore and/or the pyrolised biomass is preferably charcoal.
A grate bar for mounting in arrays of adjacent grate bars in a pallet car of a sintering or pelletizing machine includes an elongate crossbeam extending in a longitudinal direction of a horizontal plane, with a middle section between two opposite end sections. The crossbeam has a generally rectangular cross-section with an upper surface for receiving bulk material thereon, an opposite lower surface, and peripheral surfaces for facing adjacent grate bars. The crossbeam has two legs to vertically secure the grate bar to the pallet car. The end sections of the crossbeam include first interlocking components shaped and arranged such that they cooperate with first interlocking components of grate bars of a neighbouring row of grate bars; thereby limiting relative translations of two neighbouring grate bars in at least a vertical and a horizontal orientation. The first interlocking components have a triangular cross-section in a horizontal plane.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Software for controlling industrial operations, software for
monitoring industrial operations, software for improving
industrial operations; software for metallurgical furnace
operations; software for blast furnace operations; software
for data acquisition, data organization, data storage, data
validation; software for establishing reports, managing and
follow up of industrial processes; software for machine
learning, industrial processes modelling, predictive
maintenance, process forecast and process optimization;
industrial computer data storage devices; computer programs
for industrial data processing; industrial data
communications equipment; industrial data processing
software; industrial data processing systems; hardware for
industrial data processing; industrial data communication
apparatus that transmit industrial data and information to
databases; computers for use in data management; software
for the analysis of industrial data; intelligent gateways
for real-time industrial data analysis; sensors for real
time industrial data input apparatus; sensors for real time
industrial data output apparatus; database management
software for controlling, monitoring and improving
industrial operations; weighing, measuring, signalling,
detecting, testing, inspecting instruments for the
metallurgical industry. Erection, installation, putting into service, maintenance
and repair of mining and steel works installations;
erection, installation, putting into service, maintenance
and repair of industrial blast furnaces; installation,
maintenance and repair of data processing installations and
computers (computer hardware products) for industrial
installations, mills, environmental technology
installations, power generation, distribution and
transmission installations and machinery; installation and
maintenance of sensors and data acquisition sensors and
electronic modules for controlling and monitoring industrial
operations and blast furnaces. Information and advisory services relating to material
treatment and processing, as well as custom manufacturing of
goods in the course of industrial operations and
metallurgical furnace operations; metallurgical material
treatment information; providing information relating to
metalworking; providing information relating to the
processing of metallurgical material using blast furnaces;
providing information relating to the rental of
metallurgical furnace apparatus; providing information
relating to the treatment or processing of metallurgical
material through blast furnace operations; providing
information relating to the rental of metallurgical
processing machines and apparatus. Scientific and technological services and research and
design relating to industrial operations having no relation
to fuel and lubricant solutions, blast furnaces monitoring
and controlling; industrial analysis and industrial research
services relating to industrial operations having no
relation to fuel and lubricant solutions, blast furnaces
monitoring and controlling; design and development of
computer hardware and software in the field of industrial
operations having no relation to fuel and lubricant
solutions, blast furnaces monitoring and controlling;
maintenance and rental of software for controlling
industrial operations, of software for monitoring industrial
operations, of software for metallurgical furnace
operations; industrial data mining; electronic industrial
data storage and data backup services; computerized
industrial data storage; computer programming for industrial
data processing; industrial data migration services;
decoding of industrial data; off-site industrial data
backup; online industrial data storage; recovery of computer
data for industrial purposes; creation of industrial data
processing programs; development of industrial data
processing software; development of industrial data
transmission systems; leasing of industrial data processing
programs; leasing of computers for industrial data
processing; electronic industrial data back-up services;
maintenance of industrial data processing software; rental
of computers for industrial data processing; updating of
industrial data processing software; computer programming
for industrial data processing having no relation to fuel
and lubricant solutions and communication systems; leasing
of software for importing and managing industrial data;
programming of electronic industrial data processing
software; conversion of computer programs and industrial
data, other than physical conversion; design and development
of software for evaluation and calculation of industrial
data, manufacturing processing and steelmaking,
aforementioned services having no relation to fuel and
lubricant solutions; design and development of software for
importing and managing industrial data, aforementioned
services having no relation to fuel and lubricant solutions;
design, development, maintenance and updating of computer
software for industrial processing, data processing and
process control, aforementioned services having no relation
to fuel and lubricant solutions; provision of information
and data relating to scientific and technological research
and development relating to the metallurgical and
steelmaking industry, having no relation to fuel and
lubricant solutions; rental of decentralized cloud storage
facility for containerized data centers of others; computer
database design; hosting computer databases; installation of
database software; maintenance of database software;
updating of database software; leasing of computer database
software.
56.
SYSTEM AND METHOD FOR MEASURING COOLING PLATE THICKNESS IN A BLAST FURNACE
A system for measuring a thickness of a cooling plate, said system comprises: a probe holder unit (10) designed to fit inside a coolant channel (18) of the cooling plate (12), the probe holder unit comprising a housing (30) extending along a length axis (L), an ultrasonic probe (32) being arranged in said housing to be able to transmit and receive ultrasonic waves from a sensor side; a rear housing part (36) being moveably arranged at the rear side, transversally to the length axis, and elastically biased away from the sensor side, thereby permitting the probe holder unit to adapt to the cooling channel size; a drive chain (14) to assist the progression of said probe holder unit (10) through the length of the coolant channel, said drive chain linked to first connecting means (48) at said first end of said housing. A cable assembly (60) comprising electric wires connects the ultrasound probe. An encoder arrangement (15) is configured to cooperate with the drive chain such as to measure a length of drive chain passing along it, the encoder arrangement comprising a first gear (76) meshing with said drive chain and coupled to an encoder.
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
G01N 29/07 - Analysing solids by measuring propagation velocity or propagation time of acoustic waves
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
57.
DOUBLE SHAFT FURNACE ARRANGEMENT AND METHOD FOR OPERATING A DOUBLE SHAFT FURNACE ARRANGEMENT
Double shaft furnace arrangement (10) for the direct reduction of metallic oxides, the double shaft furnace arrangement (10) comprising: at least a first shaft (11) and a second shaft (21) extending along a vertical direction (Z); wherein each shaft (11; 21) has a cooling zone (C) in a bottom portion (12, 22) of each shaft (11; 21), a regenerative zone (A) in a top portion of each shaft, and a high temperature reduction zone (B) arranged between the regenerative zone (A) and the cooling zone (C); a connection channel (30) connecting the first shaft (11) with the second shaft (21), wherein the connection channel (30) extends along a horizontal direction (X), wherein the connection channel (30) is arranged at a lower end of the high temperature reduction zone (B) and at an upper end of the cooling zone (C) of each of the first shaft (11) and the second shaft (21); and wherein at least one injector assembly (31) protruding laterally into the connection channel (30).
A system for measuring a thickness of a cooling plate, said system comprises: a probe holder unit (10) designed to fit inside a coolant channel (18) of the cooling plate (12), the probe holder unit comprising a housing (30) extending along a length axis (L), an ultrasonic probe (32) being arranged in said housing to be able to transmit and receive ultrasonic waves from a sensor side; a rear housing part (36) being moveably arranged at the rear side, transversally to the length axis, and elastically biased away from the sensor side, thereby permitting the probe holder unit to adapt to the cooling channel size; a drive chain (14) to assist the progression of said probe holder unit (10) through the length of the coolant channel, said drive chain linked to first connecting means (48) at said first end of said housing. A cable assembly (60) comprising electric wires connects the ultrasound probe. An encoder arrangement (15) is configured to cooperate with the drive chain such as to measure a length of drive chain passing along it, the encoder arrangement comprising a first gear (76) meshing with said drive chain and coupled to an encoder.
G01N 29/07 - Analysing solids by measuring propagation velocity or propagation time of acoustic waves
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
A method for operating a coke oven plant, the method comprising the steps of: (a) providing a blast furnace gas stream (B) and a coke oven gas stream (C); (b) treating a part (B1) of the blast furnace gas stream (B) in a CO converter unit (30) to obtain a treated blast furnace gas stream; (c) subjecting the treated blast furnace gas stream in a CO2-depletion unit (40) to obtain a primary CO2-depleted blast furnace gas stream (D); (d) mixing the primary CO2-depleted blast furnace gas stream (D) with a proportion (B2) of the blast furnace gas stream (B) in a first mixing unit (60) to obtain a secondary CO2-depleted blast furnace gas stream (E); (d) mixing the secondary CO2-depleted blast furnace gas stream (E) with a proportion of the coke oven gas stream (C) in a second mixing unit (70) to obtain a tertiary CO2-depleted gas stream (F); (e) feeding said tertiary CO2-depleted gas stream (F) to an underfiring system of a coke oven (80) from the coke oven plant to convert coal to coke thereby producing a coke oven gas (H) and an exhaust gas (G); wherein properties of the secondary CO2-depleted blast furnace gas stream (E) are determined by a first analyzer (65) downstream the first mixing unit (60) are determined by properties of the tertiary CO2-depleted gas stream (F) in a second analyzer (75) downstream the second mixing unit (70); wherein the proportion (B2) of the blast furnace gas stream (B) and the proportion of the coke oven gas stream (C) are controlled based on said properties determined by said first (65) and second (75) analyzers to adjust at least one of CO2 content, CO content, H2 content, Wobbe Index, stoichiometric combustion air demand and Lower Heating Value in said tertiary CO2-depleted gas stream (F) thereby controlling operation of the underfiring system.
C10K 3/06 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by mixing with gases
C10B 21/08 - Heating of coke ovens with combustible gases by applying special heating gases
C10K 3/04 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment reducing the carbon monoxide content
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
C10B 21/10 - Regulating or controlling the combustion
A method for operating a coke oven plant, the method comprising the steps of: (a) providing a blast furnace gas stream (B) and a coke oven gas stream (C); (b) treating a part (B1) of the blast furnace gas stream (B) in a CO converter unit (30) to obtain a treated blast furnace gas stream; (c) subjecting the treated blast furnace gas stream in a CO2-depletion unit (40) to obtain a primary CO2-depleted blast furnace gas stream (D); (d) mixing the primary CO2-depleted blast furnace gas stream (D) with a proportion (B2) of the blast furnace gas stream (B) in a first mixing unit (60) to obtain a secondary CO2-depleted blast furnace gas stream (E); (d) mixing the secondary CO2-depleted blast furnace gas stream (E) with a proportion of the coke oven gas stream (C) in a second mixing unit (70) to obtain a tertiary CO2-depleted gas stream (F); (e) feeding said tertiary CO2-depleted gas stream (F) to an underfiring system of a coke oven (80) from the coke oven plant to convert coal to coke thereby producing a coke oven gas (H) and an exhaust gas (G); wherein properties of the secondary CO2-depleted blast furnace gas stream (E) are determined by a first analyzer (65) downstream the first mixing unit (60) are determined by properties of the tertiary CO2-depleted gas stream (F) in a second analyzer (75) downstream the second mixing unit (70); wherein the proportion (B2) of the blast furnace gas stream (B) and the proportion of the coke oven gas stream (C) are controlled based on said properties determined by said first (65) and second (75) analyzers to adjust at least one of CO2 content, CO content, H2 content, Wobbe Index, stoichiometric combustion air demand and Lower Heating Value in said tertiary CO2-depleted gas stream (F) thereby controlling operation of the underfiring system.
C10B 21/08 - Heating of coke ovens with combustible gases by applying special heating gases
C10B 21/10 - Regulating or controlling the combustion
C10K 3/04 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment reducing the carbon monoxide content
C10K 3/06 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by mixing with gases
61.
METHOD FOR REDUCING CARBON FOOTPRINT IN OPERATING A METALLURGICAL PLANT FOR PRODUCING PIG IRON
A method for reducing carbon footprint in operating a metallurgical plant for producing pig iron (P), the method comprising the steps of: (a) pre-heating iron ore fines (A) in a first electric pre-heater (10) based on Joule effect and/or microwave heating to a temperature above 600 °C to obtain pre-heated iron ore fines (B), (b) partially reducing the pre-heated iron ore fines (B) in one or more fluidized bed reactors (50) in the presence of a hot reducing gas (J) to obtain partially reduced iron (K, L); (c) feeding the partially reduced iron (K, L) to a submerged arc furnace (70) comprising a bath of molten metal with a top slag layer; (d) further reducing and melting the partially reduced iron (K, L) within the submerged arc furnace (70) in the presence of a carbonaceous material (M) to obtain molten pig iron (P); wherein, in step (b), the hot reducing gas (J) comprises hydrogen (D), syngas (I), off-gas (O) of the submerged arc furnace, other off-gases (H) from the metallurgical plant, or mixtures of two or more thereof, wherein said syngas (I) is produced from natural gas or biomethane (F), blast furnace gas (G), off-gas (O) of the submerged arc furnace (O), other off-gases from the metallurgical plant (H), or mixtures of two or more thereof in the presence of air or oxygen enriched air, steam or carbon dioxide (E) in one or more reforming reactors (40), wherein, in step b), the hot reducing gas (J) has a temperature above 550 °C, and wherein, in step b), the partially reduced iron (K, L) has a metallization degree of 55 to 75 %, preferably 60 to 70 %.
A method for reducing carbon footprint in operating a metallurgical plant for producing pig iron (P), the method comprising the steps of: (a) pre-heating iron ore fines (A) in a first electric pre-heater (10) based on Joule effect and/or microwave heating to a temperature above 600 °C to obtain pre-heated iron ore fines (B), (b) partially reducing the pre-heated iron ore fines (B) in one or more fluidized bed reactors (50) in the presence of a hot reducing gas (J) to obtain partially reduced iron (K, L); (c) feeding the partially reduced iron (K, L) to a submerged arc furnace (70) comprising a bath of molten metal with a top slag layer; (d) further reducing and melting the partially reduced iron (K, L) within the submerged arc furnace (70) in the presence of a carbonaceous material (M) to obtain molten pig iron (P); wherein, in step (b), the hot reducing gas (J) comprises hydrogen (D), syngas (I), off-gas (O) of the submerged arc furnace, other off-gases (H) from the metallurgical plant, or mixtures of two or more thereof, wherein said syngas (I) is produced from natural gas or biomethane (F), blast furnace gas (G), off-gas (O) of the submerged arc furnace (O), other off-gases from the metallurgical plant (H), or mixtures of two or more thereof in the presence of air or oxygen enriched air, steam or carbon dioxide (E) in one or more reforming reactors (40), wherein, in step b), the hot reducing gas (J) has a temperature above 550 °C, and wherein, in step b), the partially reduced iron (K, L) has a metallization degree of 55 to 75 %, preferably 60 to 70 %.
A method for operating a shaft furnace plant comprising a shaft furnace and an ammonia reforming plant is presented, the method comprising the steps of (a.) feeding a stream of ammonia to the ammonia reforming plant; (b.) cracking said stream of ammonia in the ammonia reforming plant to produce a stream of reducing gas; (c.) feeding a metal oxide containing charge, e.g. an iron oxide containing charge and the stream of reducing gas into the shaft furnace; and (d.) reducing the metal oxide inside the shaft furnace by reaction between the metal oxide containing charge and the stream of reducing gas, wherein the reducing gas comprises less than 15 % of ammonia, preferably less than 10 % of ammonia. The present invention also relates to a shaft furnace plant configured to implement such a method.
Electric stove for heating a reducing gas, the electric stove comprising: a hollow metal shell body extending along a longitudinal direction; a refractory lining arranged on an inner surface portion of the shell body; a plurality of bricks arranged in adjacent layers extending along the longitudinal direction, wherein each brick comprises a plurality of cavities extending straight along the longitudinal direction through the respective layer, wherein the cavities of adjacent layers are aligned to one another, whereby a plurality of channels for conducting the reducing gas is formed; characterized in that the electric stove comprises further: a plurality of heating wires for heating the reducing gas, wherein each heating wire has a diameter smaller than a diameter of a channel, and wherein each heating wire extends at least partially through at least one corresponding channel of the plurality of channels, such that when the electric stove is operated, a predefined heat amount is dissipated by each heating wire to a reducing gas flowing around said heating wire.
Electric stove for heating a reducing gas, the electric stove comprising: a hollow metal shell body extending along a longitudinal direction; a refractory lining arranged on an inner surface portion of the shell body; a plurality of bricks arranged in adjacent layers extending along the longitudinal direction, wherein each brick comprises a plurality of cavities extending straight along the longitudinal direction through the respective layer, wherein the cavities of adjacent layers are aligned to one another, whereby a plurality of channels for conducting the reducing gas is formed; characterized in that the electric stove comprises further: a plurality of heating wires for heating the reducing gas, wherein each heating wire has a diameter smaller than a diameter of a channel, and wherein each heating wire extends at least partially through at least one corresponding channel of the plurality of channels, such that when the electric stove is operated, a predefined heat amount is dissipated by each heating wire to a reducing gas flowing around said heating wire.
A metallurgical furnace cooling plate includes a cooling plate body with front and rear faces and at least one coolant channel inside the body, which communicates with a rear opening on the rear face; and a connection pipe connected to the body so that a pipe channel of the connection pipe communicates with the coolant channel, the connection pipe adapted for carrying coolant fluid to or from the channel.
A metallurgical furnace cooling plate includes a cooling plate body with front and rear faces and at least one coolant channel inside the body, which communicates with a rear opening on the rear face; and a connection pipe connected to the body so that a pipe channel of the connection pipe communicates with the coolant channel, the connection pipe adapted for carrying coolant fluid to or from the channel.
The body includes a receiving bore extending in a bore direction from the rear opening into the coolant channel, the channel being spaced in the bore direction from the rear face by a cover thickness of a cover portion and extends in the bore direction over a width. A connection pipe end portion extends into the receiving bore beyond the cover thickness and is form-fittingly received in the receiving bore along at least a portion of a width of the channel.
06 - Common metals and ores; objects made of metal
11 - Environmental control apparatus
19 - Non-metallic building materials
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Iron carbon alloys; building bricks (metal -); refractory
construction materials of metal in the form of bricks;
reinforcing bars of metal for use in brickwork; chimney
blocks (metal -); building blocks (metal -); blocks (metal
-) for construction; refractory blocks of metal; refractory
castable mixes of metal; metal roofing; metal roofing
panels. Industrial ovens; industrial ovens and furnaces (not for
food or beverages); oven ventilator hoods; roof fans; coke
battery furnaces. Building bricks (non-metallic -); building bricks (glass -);
bricks being refractory articles; semi-refractory bricks,
not of metal; facing bricks (non-metallic -); masonry
blocks; concrete blocks; blockboard; refractory castable
mixes, not of metal; roofing materials. Repair of industrial ovens; coating of brickwork;
replacement of roofs in coke batteries; installation,
changing, replacement and repair of roofs in coke batteries;
erection of prefabricated buildings and structures; erection
of reinforced concrete structures utilising sliding and
climbing formworks; assembly [installation] of industrial
ovens, in particular coke ovens. Industrial analysis and industrial research services;
industrial design; industrial process development with
regard to the replacement of industrial oven roofs.
68.
METHOD FOR OPERATING A METALLURGICAL PLANT FOR PRODUCING IRON PRODUCTS
The invention concerns a method for producing iron containing products, comprising: operating a blast furnace plant to produce liquid pig iron from blast furnace charge material, whereby metallurgical gas comprising blast furnace top gas (B1) is generated; operating a direct reduction plant to produce direct reduced iron products from iron ore loaded into the top of a direct reduction furnace, a stream of reducing gas (D5) being introduced into said direct reduction furnace, said direct reduction plant comprising a reformer or heater device from which said stream of reducing gas (D5) is discharged, whereby top gas (D1) is generated by said direct reduction furnace; wherein a first stream (D4) of direct reduction plant top gas is treated in an enriching stage configured for enriching in reducing species, and forwarded to said blast furnace plant to be used therein as reducing gas; and wherein a first stream of said metallurgical gas (B3/B6) is forwarded to said reformer or heater device of said direct reduction plant to be used therein as fuel gas. Also disclosed is a corresponding metallurgical plant.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Software for controlling industrial operations, software for monitoring industrial operations, software for improving industrial operations; software for metallurgical furnace operations; software for blast furnace operations; software for data acquisition, data organization, data storage, data validation; software for establishing reports, managing and follow up of industrial processes; software for machine learning, industrial processes modelling, predictive maintenance, process forecast and process optimization; industrial computer data storage devices; computer programs for industrial data processing; industrial data communications equipment; industrial data processing software; industrial data processing systems; hardware for industrial data processing; industrial data communication apparatus that transmit industrial data and information to databases; computers for use in data management; software for the analysis of industrial data; intelligent gateways for real-time industrial data analysis; sensors for real time industrial data input apparatus; sensors for real time industrial data output apparatus; database management software for controlling, monitoring and improving industrial operations; weighing, measuring, signalling, detecting, testing, inspecting instruments for the metallurgical industry. (1) Erection, installation, putting into service, maintenance and repair of mining and steel works installations; erection, installation, putting into service, maintenance and repair of industrial blast furnaces; installation, maintenance and repair of data processing installations and computers (computer hardware products) for industrial installations, mills, environmental technology installations, power generation, distribution and transmission installations and machinery; installation and maintenance of sensors and data acquisition sensors and electronic modules for controlling and monitoring industrial operations and blast furnaces.
(2) Information and advisory services relating to material treatment and processing, as well as custom manufacturing of goods in the course of industrial operations and metallurgical furnace operations; metallurgical material treatment information; providing information relating to metalworking; providing information relating to the processing of metallurgical material using blast furnaces; providing information relating to the rental of metallurgical furnace apparatus; providing information relating to the treatment or processing of metallurgical material through blast furnace operations; providing information relating to the rental of metallurgical processing machines and apparatus.
(3) Scientific and technological services and research and design relating to industrial operations having no relation to fuel and lubricant solutions, blast furnaces monitoring and controlling; industrial analysis and industrial research services relating to industrial operations having no relation to fuel and lubricant solutions, blast furnaces monitoring and controlling; design and development of computer hardware and software in the field of industrial operations having no relation to fuel and lubricant solutions, blast furnaces monitoring and controlling; maintenance and rental of software for controlling industrial operations, of software for monitoring industrial operations, of software for metallurgical furnace operations; industrial data mining; electronic industrial data storage and data backup services; computerized industrial data storage; computer programming for industrial data processing; industrial data migration services; decoding of industrial data; off-site industrial data backup; online industrial data storage; recovery of computer data for industrial purposes; creation of industrial data processing programs; development of industrial data processing software; development of industrial data transmission systems; leasing of industrial data processing programs; leasing of computers for industrial data processing; electronic industrial data back-up services; maintenance of industrial data processing software; rental of computers for industrial data processing; updating of industrial data processing software; computer programming for industrial data processing having no relation to fuel and lubricant solutions and communication systems; leasing of software for importing and managing industrial data; programming of electronic industrial data processing software; conversion of computer programs and industrial data, other than physical conversion; design and development of software for evaluation and calculation of industrial data, manufacturing processing and steelmaking, aforementioned services having no relation to fuel and lubricant solutions; design and development of software for importing and managing industrial data, aforementioned services having no relation to fuel and lubricant solutions; design, development, maintenance and updating of computer software for industrial processing, data processing and process control, aforementioned services having no relation to fuel and lubricant solutions; provision of information and data relating to scientific and technological research and development relating to the metallurgical and steelmaking industry, having no relation to fuel and lubricant solutions; rental of decentralized cloud storage facility for containerized data centers of others; computer database design; hosting computer databases; installation of database software; maintenance of database software; updating of database software; leasing of computer database software.
40 - Treatment of materials; recycling, air and water treatment,
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Information and advisory services relating to material treatment and processing, as well as custom manufacturing of goods in the course of industrial operations and metallurgical furnace operations; providing information pertaining to metallurgical material treatment; providing information relating to metalworking; providing information relating to the processing of metallurgical material using blast furnaces; providing information relating to the rental of metallurgical furnace apparatus; providing information relating to the treatment or processing of metallurgical material through blast furnace operations; providing information relating to the rental of metallurgical processing machines and apparatus Downloadable software for controlling industrial operations and for monitoring industrial operations and improving industrial operations; Downloadable software for metallurgical furnace operations; Downloadable software for blast furnace operations; Downloadable software for data acquisition, data organization, data storage, data validation; Downloadable software for establishing reports, managing and follow up of industrial processes; Downloadable software for machine learning, industrial processes modelling, predictive maintenance, process forecast and process optimization; Industrial computer data storage devices, namely, high-speed storage subsystems for storage and backup of electronic data either locally or via telecommunications networks; Downloadable computer programs for industrial data processing; Broadband wireless equipment, namely, telecommunication base station equipment used to communicate industrial data; Downloadable computer software for industrial processing data; Downloadable computer software for industrial data processing systems; Computer hardware for industrial data processing; Apparatus for transmission of communication used to transmit industrial data and information to databases; Computers for use in data management; Downloadable software for analyzing industrial data; Gateway routers, namely, intelligent communication gateways used for real-time industrial data analysis; Sensors for scientific use with industrial data input apparatus to gather real time industrial data; Sensors for scientific use with industrial data output apparatus to gather real time industrial data; Downloadable database management software for controlling, monitoring and improving industrial operations; Scientific instruments for weighing, measuring, signaling, detecting, testing metallurgical substances in the metallurgical industry Erection, installation, maintenance and repair of mining and steel works installations; Erection, installation, maintenance and repair of industrial blast furnaces; Installation, maintenance and repair of data processing installations and computers and computer hardware products for industrial installations, mills, environmental technology installations, power generation, distribution and transmission installations and machinery; Installation and maintenance of sensors and data acquisition sensors and electronic modules for controlling and monitoring industrial operations and blast furnaces Design and development of computer hardware and software in the field of industrial operations having no relation to fuel and lubricant solutions, blast furnaces monitoring and controlling; maintenance and rental of software for controlling industrial operations, of software for monitoring industrial operations, of software for metallurgical furnace operations; industrial data mining; electronic industrial data storage and data backup services; computerized industrial data storage; computer programming for industrial data processing; industrial data migration services; decoding services, namely decoding of industrial data; off-site industrial data backup; providing temporary use of on-line non-downloadable cloud computing software for data storage; recovery of computer data for industrial purposes; development and creation computer programs and software for industrial data processing; design and development of data and wireless transmission hardware systems for industrial data processing; leasing of computer programs for processing of industrial data; leasing of computers for industrial data processing; electronic industrial data back-up services; maintenance of industrial data processing software; rental of computers for industrial data processing; updating of industrial data processing software for others; computer programming for industrial data processing having no relation to fuel and lubricant solutions and communication systems; leasing of software for importing and managing industrial data; programming of electronic industrial data processing software; conversion of computer programs and industrial data, other than physical conversion; design and development of software for evaluation and calculation of industrial data, manufacturing processing and steelmaking, aforementioned services having no relation to fuel and lubricant solutions; design and development of software for importing and managing industrial data, aforementioned services having no relation to fuel and lubricant solutions; design, development, maintenance and updating of computer software for industrial processing, data processing and process control, aforementioned services having no relation to fuel and lubricant solutions; provision of information and data, namely, information and data in the field of scientific and technological research in the field of metallurgical and steelmaking industry and developments therein, having no relation to fuel and lubricant solutions; rental of decentralized cloud storage facility for containerized data centers of others; computer database design; providing online non-downloadable computer software for hosting computer databases; installation of database software; maintenance of database software; updating of database software for others; leasing of computer database software
A radiant element for heating an oven is disclosed. The radiant element comprises a first end; a second free end; a radiant structure between said first end and second end; a conduit for an energy feed inside said radiant structure; a first attachment leg for mechanically coupling the radiant structure to a support, a first coupling means comprising a first portion arranged to be stationary with respect to said support, and a second portion stationary relative to said first leg, the first portion and the second portion being mechanically coupled via a first interface so as to allow a relative displacement between the first portion and second portion.
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
A method for converting a blast furnace plant for synthesis gas utilization includes:
A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
connecting a first syngas stove to the top-gas supply system, the cold-blast and hot-blast supply systems and operating the first syngas stove for hot blast generation;
A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
connecting a first syngas stove to the top-gas supply system, the cold-blast and hot-blast supply systems and operating the first syngas stove for hot blast generation;
disconnecting a first original stove from the top-gas supply system, the cold-blast and hot-blast supply systems; and
A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
connecting a first syngas stove to the top-gas supply system, the cold-blast and hot-blast supply systems and operating the first syngas stove for hot blast generation;
disconnecting a first original stove from the top-gas supply system, the cold-blast and hot-blast supply systems; and
converting the first original stove to adapt it for producing syngas. The method includes
A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
connecting a first syngas stove to the top-gas supply system, the cold-blast and hot-blast supply systems and operating the first syngas stove for hot blast generation;
disconnecting a first original stove from the top-gas supply system, the cold-blast and hot-blast supply systems; and
converting the first original stove to adapt it for producing syngas. The method includes
connecting the first original stove to the top-gas supply system;
A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
connecting a first syngas stove to the top-gas supply system, the cold-blast and hot-blast supply systems and operating the first syngas stove for hot blast generation;
disconnecting a first original stove from the top-gas supply system, the cold-blast and hot-blast supply systems; and
converting the first original stove to adapt it for producing syngas. The method includes
connecting the first original stove to the top-gas supply system;
disconnecting the first syngas stove from the cold-blast and hot-blast supply systems, connecting the first original stove and first syngas stove to a gas-combination supply system; and
A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
connecting a first syngas stove to the top-gas supply system, the cold-blast and hot-blast supply systems and operating the first syngas stove for hot blast generation;
disconnecting a first original stove from the top-gas supply system, the cold-blast and hot-blast supply systems; and
converting the first original stove to adapt it for producing syngas. The method includes
connecting the first original stove to the top-gas supply system;
disconnecting the first syngas stove from the cold-blast and hot-blast supply systems, connecting the first original stove and first syngas stove to a gas-combination supply system; and
operating the first original stove and first syngas stove to produce and then supply syngas to the blast furnace via the syngas supply system.
F27B 1/08 - Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge
C01B 3/34 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
A computer-implemented failure predictor has a module arrangement (373) with first and second sub-ordinated modules (313, 323) that are sub-ordinated to an output module (363). The first and a second sub-oriented modules process data from an industrial machine to determine first and second intermediate status indicators. A third sub-oriented module (333) determines an operation mode indicator, and the output module (363) processes the status indicators and the operation mode indicator to predict a failure of the industrial machine. The module arrangement has been trained by cascaded training to comprises to train the sub-ordinated modules (312, 322, 332), to subsequently operate the trained sub-ordinated modules, and to subsequently train the output module.
A method for operating a blast furnace is presented, said method comprising the steps of collecting a stream of blast furnace gas from the blast furnace; feeding said stream of blast furnace gas and a hydrocarbon containing gas to a reforming plant comprising at least one reformer; reforming said stream of blast furnace gas and said hydrocarbon containing gas in the reforming plant to produce a stream of syngas; and feeding at least a portion of said stream of syngas to the blast furnace; wherein a stream of h½ is added to the hydrocarbon containing gas before step (c) and/or to the stream of blast furnace gas before step (c) and/or to the stream of syngas before step (d) and/or to the tuyere of the blast furnace, wherein the feeding of at least a portion of said stream of syngas to the blast furnace occurs through the shaft of the blast furnace and/or through the tuyere of the blast furnace, and wherein the utilization efficiency of the hydrogen in a blast furnace plant comprising the blast furnace, the reforming plant and a cowper plant is above 60%.
A shaft furnace, in particular a blast furnace, includes a metal jacket defining the furnace outer wall and a protective layer protecting the inner surface of the outer wall. At least one condition monitoring probe is arranged inside within the protective layer to monitor the latter. The condition monitoring probe is connected to a wireless module arranged outside the outer wall to transmit condition monitoring data. The wireless module is located inside a casing mounted to the outer surface of the metal jacket. The condition monitoring probe includes one or more conductive loops positioned at predetermined depths below the front face of the cooling plate body, or of the refractory lining, so that wear of the body, resp. refractory, can be detected by a change of an electrical characteristic of the loop(s) due to abrasion.
A cooling system for a metallurgical furnace comprises: a plurality of cooling arrangements (40) comprising each a set of cooling elements (38) arranged to extract heat from the furnace, the cooling elements (34) having each at least one internal cooling channel for a coolant fluid, wherein the cooling elements (34) are fluidly connected within each cooling arrangement (40); at least one discharge piping (5) associated with each cooling arrangement for discharging the coolant fluid towards a main collector (6). A flow regulating arrangement (7) is serially mounted with the discharge piping (5) and configured to control a flow rate of the coolant fluid therethrough and hence through the cooling arrangement (40). The flow regulating arrangement (7) includes a calibrated orifice (26; 27) defining a default, minimal flow cross section for the coolant fluid and a regulating valve (10) selectively operable to define a variable, additional flow cross-section.
The present invention discloses a method for providing raw material for an industrial process, in particular for steel production. The method comprises the following steps: - torrefying a torrefaction material, which comprises biomass, in a reactor by thermochemically treating the torrefaction material at 200°C to 600°C, to obtain bio coal - extracting the bio coal from the reactor at a first temperature of up to 600°C, - providing bulk materials at a second temperature between 0°C and 100 °C, - mixing bio coal with bulk material, thereby cooling down the bio coal with the bulk material and obtaining a mixture of bulk material and bio coal at a third temperature, below the self-ignition temperature of the mixture, and - using the mixture to provide the raw material for the industrial process.
C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining
C21B 3/00 - General features in the manufacture of pig-iron
C21B 13/00 - Making spongy iron or liquid steel, by direct processes
78.
METHOD OF OPERATING AN ELECTRIC ARC FURNACE AND STEEL MILL
The invention discloses a method of operating an electric arc furnace, the method comprising capturing, from at least one facility (12) of a steel mill (100), a heated metallurgical gas comprising water and carbon monoxide; conducting, by a reactor supply line (14), said metallurgical gas to a reactor (16); transforming, by a treatment of said metallurgical gas within said reactor (16), the carbon monoxide and water into hydrogen and carbon dioxide according to a water-gas shift reaction; and subsequently separating said hydrogen by a separation device (18). The method is characterized in that it further comprises providing an iron-bearing material, which comprises iron mainly in the form of iron oxide, to the electric arc furnace (10); at least partially melting the iron- bearing material to obtain a molten bath; conducting, by a furnace supply line (20), said hydrogen to the electric arc furnace (10), which is arranged downstream of the furnace supply line (20); and injecting, by a plurality of hydrogen injection devices (26), said hydrogen into said electric arc furnace (10), such that said hydrogen reacts as a reducing agent for reducing iron oxide in the molten bath during a smelting operation of the electric arc furnace (10).
The invention discloses a method of operating an electric arc furnace, the method comprising capturing, from at least one facility (12) of a steel mill (100), a heated metallurgical gas comprising water and carbon monoxide; conducting, by a reactor supply line (14), said metallurgical gas to a reactor (16); transforming, by a treatment of said metallurgical gas within said reactor (16), the carbon monoxide and water into hydrogen and carbon dioxide according to a water-gas shift reaction; and subsequently separating said hydrogen by a separation device (18). The method is characterized in that it further comprises providing an iron-bearing material, which comprises iron mainly in the form of iron oxide, to the electric arc furnace (10); at least partially melting the iron- bearing material to obtain a molten bath; conducting, by a furnace supply line (20), said hydrogen to the electric arc furnace (10), which is arranged downstream of the furnace supply line (20); and injecting, by a plurality of hydrogen injection devices (26), said hydrogen into said electric arc furnace (10), such that said hydrogen reacts as a reducing agent for reducing iron oxide in the molten bath during a smelting operation of the electric arc furnace (10).
The present invention discloses a method for providing raw material for an industrial process, in particular for steel production. The method comprises the following steps: - torrefying a torrefaction material, which comprises biomass, in a reactor by thermochemically treating the torrefaction material at 200°C to 600°C, to obtain bio coal - extracting the bio coal from the reactor at a first temperature of up to 600°C, - providing bulk materials at a second temperature between 0°C and 100 °C, - mixing bio coal with bulk material, thereby cooling down the bio coal with the bulk material and obtaining a mixture of bulk material and bio coal at a third temperature, below the self-ignition temperature of the mixture, and - using the mixture to provide the raw material for the industrial process.
C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
A skip hoist of a blast furnace includes a winch system. In order to provide an improved drive system for a skip hoist of a blast furnace, the winch system includes
a winch drum, rotatably mounted about a drum axis;
at least three drive motors; and
a transmission for transferring a drive force from each of the drive motors to the winch drum.
A skip hoist of a blast furnace includes a winch system. In order to provide an improved drive system for a skip hoist of a blast furnace, the winch system includes
a winch drum, rotatably mounted about a drum axis;
at least three drive motors; and
a transmission for transferring a drive force from each of the drive motors to the winch drum.
The skip hoist further relates to a blast furnace.
An industrial machine (123) may not have a sensor for a particular parameter, so that a computer uses a neural network (473) to virtualize the missing sensor. The computer trains the neural network (373) to provide a parameter indicator (Z') of a further process parameter (173, z) for the industrial machine (123) with steps that comprise receiving measurement time-series with historical measurement data from reference machines, obtaining transformation rules by processing the time-series to feature series that are invariant to domain differences of the reference machines, transforming time-series by using the transformation rules, receiving a uni-variate time-series of the further process parameter (z), and training the neural network with features series at the input, and with the uni-variate time-series at the output.
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
A valve for a PCI system of a blast furnace including a valve housing with an inlet opening, an outlet opening and a maintenance opening, a maintenance door that is adapted to close the maintenance opening in an operating position during operation of the valve and that is removable from the maintenance opening into a maintenance position, a valve member movably mounted to the maintenance door, wherein, when the maintenance door is in the operating position, the valve member is movable between a closed position for closing the valve and an open position, and, when the maintenance door is in the maintenance position, the valve member is accessible from outside the valve housing.
A system and method for monitoring the condition of a travelling grate machine including univocally identifying each pallet car; collecting a plurality of condition indicating parameters for the wheels, the grate bars, the car body and/or the side walls of the pellet car; attributing the collected condition indicating parameters to an individual pallet car; storing the collected condition indicating parameters for each pallet car in a database; evaluating the condition of the travelling grate machine; comparing the different condition indicating parameters collected by the different sensor means of each pallet car to reference parameters and/or to previously collected condition indicating parameters of that same pallet car; identifying the faults in each pallet car based on this comparison; classifying each pallet car according to its need of maintenance based on the severity of different identified faults; and determining the pallet car in most need of maintenance based on this classification.
F27D 3/12 - Travelling or movable supports or containers for the charge
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G06F 16/583 - Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
85.
Method for maintenance of a cooling assembly for a metallurgical furnace
a compensator disposed around the cooling pipe for forming a seal between the cooling pipe and the furnace shell.
In order to provide ways for facilitating repair of a cooling system of the metallurgical furnace, the method includes at least the step of performing at least one cutting operation with a cutting device having a fixture and a cutting tool movably connected to the fixture for a guided movement with respect to the fixture. The fixture is mounted to the cooling pipe, whereby the cutting device is aligned with respect to the cooling pipe, and the cutting tool is guidedly moved while performing the cutting operation.
A device for the contactless determination of at least one property of a metal product during the metallurgical production of the metal product comprises a housing and at least one measuring device comprising a transmitting unit and a receiving unit. An electromagnetic field is generated by the transmitting unit and directed onto the metal product, thereby inducing a physical interaction in the material of the metal product, and a remaining and/or resulting part of this physical interaction is subsequently received by the receiving unit. At least one component of the measuring device comprising the transmitting unit and/or the receiving unit can be moved relative to the housing or the metal product moving therein, in order to thereby set or selectively change a predetermined distance to the metal product for the transmitting unit and/or the receiving unit.
G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
C21D 11/00 - Process control or regulation for heat treatments
G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
G01N 33/204 - Structure thereof, e.g. crystal structure
The invention relates to a method for operating a blast furnace plant (1) that comprises a blast furnace (10), at least one material hopper (20) for charging raw materials to the blast furnace (10), having a upper seal valve (21) and a lower seal valve (22), and at least one hot stove (30) that produces hot blast for the blast furnace (10), the method comprising at least one charging cycle with the following steps: - opening the upper seal valve (21), - introducing raw materials into the material hopper (20), - closing the upper seal valve (21), - pressure equalization of the material hopper with blast furnace top pressure, and - opening the lower seal valve (22) to discharge raw materials into the blast furnace (10). In order to provide a cost-effective way to minimize the explosion danger during operation of a top charging system, the invention provides that an offgas from the at least one hot stove (30) is transferred by a transfer system (40) to the at least one material hopper (20) and, before the lower seal valve (22) is opened, the offgas is injected into the material hopper (20).
Coke oven door sealing unit for sealing a coke oven door against a sealing surface of a coke oven door frame of a coke oven chamber, the coke oven door sealing unit comprising: a coke oven door for fitting into the coke oven door frame of the coke oven chamber; a fixture device for holding a sealing piece opposite to the coke oven door frame in a peripheral area of the coke oven door; the sealing piece, wherein the sealing piece is configured to be operated in a first operating state or a second operating state; a seal protection element for isolating the sealing piece from the coke oven chamber; wherein, in a first operating state, the sealing piece is spaced at a first distance from a sealing surface arranged opposite of the sealing piece; and wherein, in a second operating state, the sealing piece contacts the sealing surface; such that in the second operating state, the sealing piece and the seal protection element at least partially form a cavity.
Coke oven door sealing device for sealing a coke oven door against a sealing surface of a coke oven door frame of a coke oven chamber, the coke oven door sealing device comprising: a coke oven door having a panel unit for closing the coke oven chamber; a fixture device for holding a sealing piece in a peripheral area of the coke oven door opposite to the sealing surface; the sealing piece, wherein the sealing piece is configured to be operated in a first operating state or a second operating state; wherein, in a first operating state, the sealing piece is spaced at a first distance from the sealing surface arranged opposite of the sealing piece; wherein, in a second operating state, the sealing piece contacts the sealing surface; such that in the second operating state, the sealing piece and the panel unit at least partially shape a cavity and wherein the coke oven door sealing device (1) further comprises a first insulation element (14) for thermally insulating the sealing piece (13), wherein the first insulation element (14) is arranged on the fixture device (11).
A method for operating a blast furnace, including collecting a blast furnace gas from the blast furnace, the blast furnace gas being a CO2 containing gas, combining the blast furnace gas with a fuel gas to obtain a gas mixture, the fuel gas being a hydrocarbon containing gas, subjecting the gas mixture to a reforming process, thereby producing a synthesis gas containing CO and H2; and feeding at least a portion of the synthesis gas and an oxygen-rich gas into the blast furnace, where the blast furnace gas is combined with the fuel gas while containing substantially the same amount of CO2 as when exiting the blast furnace and wherein the blast furnace gas is combined with the fuel gas in an over-stoichiometric ratio, so that the synthesis gas contains a surplus portion of the blast furnace gas.
C01B 3/46 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using discontinuously preheated non-moving solid materials, e.g. blast and run
93.
COOLING PLATE THICKNESS MEASUREMENT IN A BLAST FURNACE
A device and method for measuring the thickness of a cooling plate are related. The device is designed to fit inside a coolant channel of the cooling plate and includes a probe holder housing having a front sensor side and an opposite back side, in which an ultrasonic probe is arranged. A flexible cord is linked to the probe housing to assist the progression of the probe holder through the length of the coolant channel. The probe holder includes an expandable structure having front and rear levers articulated on the housing at opposite ends wherein spring elements are arranged to bias the levers towards one another. The expandable structure is configured to expand from a compact configuration to an expanded configuration, designed to bear against the inner surface of the coolant channel and bias the sensor side of the sensor housing against the inner surface of the coolant channel.
G01N 29/07 - Analysing solids by measuring propagation velocity or propagation time of acoustic waves
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
The present invention proposes a heat storage device such as e.g. a hot blast stove (10) comprising a heat regeneration checkerwork (14) made of checker bricks (12), the checkerwork (14) being supported by a support assembly (16). In accordance with an aspect of the present invention, the support assembly (16) comprises a carrier structure (20) made of refractory material and carrier floor also made of refractory material, the carrier floor resting on the carrier structure (20) and being arranged and formed to carry the checker bricks of the checkerwork (14).
F27D 1/04 - CasingsLiningsWallsRoofs characterised by the form of the bricks or blocks used
F28D 17/02 - Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using rigid bodies, e.g. of porous material
The present invention proposes a heat storage device such as e.g. a hot blast stove (10) comprising a heat regeneration checkerwork (14) made of checker bricks (12), the checkerwork (14) being supported by a support assembly (16). In accordance with an aspect of the present invention, the support assembly (16) comprises a carrier structure (20) made of refractory material and carrier floor also made of refractory material, the carrier floor resting on the carrier structure (20) and being arranged and formed to carry the checker bricks of the checkerwork (14).
F27D 1/04 - CasingsLiningsWallsRoofs characterised by the form of the bricks or blocks used
F28D 17/02 - Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using rigid bodies, e.g. of porous material
96.
COMPUTER SYSTEM AND METHOD PROVIDING OPERATING INSTRUCTIONS FOR THERMAL CONTROL OF A BLAST FURNACE
Computer system (100), computer-implemented method and computer program product are provided for training a reinforcement learning model (130) to provide operating instructions for thermal control of a blast furnace. A domain adaptation machine learning model (110) generates a first domain invariant dataset (22) from historical operating data (21) obtained as multivariate time series and reflecting thermal states of respective blast furnaces (BF1 to BFn) of multiple domains. A transient model (121) of a generic blast furnace process is used to generate artificial operating data (24a) as multivariate time series reflecting a thermal state of a generic blast furnace (BFg) for a particular thermal control action (26a). A generative deep learning network (122) generates a second domain invariant dataset (23a) by transferring the features learned from the historical operating data 21 to the artificial operating data (24a). The reinforcement learning model (130) determines (1400) a reward (131) for the particular thermal control action (26a) in view of a given objective function by processing the combined first and second domain invariant datasets (22, 23a). Dependent on the reward (131), the second domain invariant data set is regenerated based on modified parameters (123-2), and repeating the determining of the reward to learn optimized operating instructions for optimized thermal control actions to be applied for respective operating states of one or more blast furnaces.
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
G06N 3/00 - Computing arrangements based on biological models
G06N 3/04 - Architecture, e.g. interconnection topology
The invention concerns a gas injection system for a blast furnace or shaft furnace or metallurgical furnace comprising a furnace wall (12) and a cooling plate (18) wherein the gas injection system comprises • a gas distribution pipe (14) • one or more injectors (16) having a nozzle wherein the nozzle comprises a ceramic insert (52), wherein the cooling element (18) has a hot side, turned away from the furnace wall (12), wherein a protrusion (54) is attached to the hot side of said cooling plate, wherein the ceramic insert (52) traverses the furnace wall and the cooling plate and the protrusion on cooling plate and wherein the ceramic inserts (52) have an adaptable length so that they either protrude inside the furnace, or that they are flush with a hot face of the cooling plate (18) or stay slightly in retreat with a hot face of the cooling plate (18).
A shaft furnace, in particular a blast furnace, comprises an outer metal shell (14); a plurality of tuyeres (16) arranged to inject hot blast into the shaft furnace; and means for injecting process gas in the shaft stack area. The injector comprises a nozzle body (51) with a peripheral wall (52) extending along a longitudinal axis from a front portion (54), with at least one injection hole (56), to an opposite rear portion (58) connected to a base member (60), wherein the nozzle body includes an inner gas channel (62) for guiding process gas from an inlet port (64) in the base member to said injection holes(s). The nozzle body (56) is mounted trough an aperture (66) in the metal shell (14) in such a way that the front region (54) with injection hole(s) is located on the inner side of the metal shell, whereas said rear portion (58) is outside of the metal shell. The base member (60) comprises a peripheral mounting portion (70) configured for connecting the injector in a gas tight manner to a mounting unit (68) surrounding the aperture (66) in said metal shell.
A reducing gas injection system (10) for a blast furnace comprising a blast furnace wall (30), wherein the reducing gas injection system comprises - a reducing gas distribution pipe (20), - one or more injectors (40) mounted to the blast furnace wall at a shaft level, wherein the reducing gas distribution pipe (20) is attached to the blast furnace wall (30) or its supporting structure, wherein said injector(s) (40) comprise(s) a nozzle body (42) with a peripheral wall extending along a longitudinal axis from a front portion, with at least one injection hole (41), to an opposite rear portion with an inlet port (43), wherein the nozzle body includes an inner gas channel for guiding reducing gas from said inlet port (43) to said injection holes(s) (41); wherein said nozzle body (42) is mounted trough an aperture in said blast furnace wall (30) in such a way that the front portion with the injection hole(s) (41) is located on an inner side (31 ) of said blast furnace, whereas said rear portion with the inlet port (43) is outside of said blast furnace wall, wherein said nozzle body (42) comprises a peripheral mounting portion configured for connecting said injector in a gas tight manner to said aperture in said blast furnace wall, wherein the inlet port (43) is in fluidic connection with the reducing gas distribution pipe (20) by means of an injector stock, said injector stock comprising a feeding pipe (51) connected to the reducing gas distribution pipe (20), an elbow (52) connected to said feeding pipe (51) and an injector pipe (53) connected to said elbow (52), said injector pipe (53) being flange mounted in a gas tight manner to the inlet port (43) of the injector (40) and said injector pipe (53) and/or an outlet of the elbow comprising at least one cardan compensation joint (531).
The invention relates to a charging system (1) for a metallurgical furnace (100) that is elongate along a horizontal length direction (X) in that it has a longer dimension in the length direction (X) than in a horizontal width direction (Y) perpendicular thereto, the charging system (1) being adapted for feeding a plurality of materials to the metallurgical furnace (100). In order to provide a space-saving, simplified charging system for a furnace with an elongate cross-section, the invention provides that the charging system comprises: - a lock hopper (10) for receiving material, having an inlet sealing element (11) and an outlet sealing element (12), the lock hopper (10) being adapted to receive material through the inlet sealing element (11) when the inlet sealing element (11) is open, and being adapted to discharge material through the outlet sealing element (12) when the outlet sealing element (12) is open, the sealing elements (11, 12) being adapted to gas-tightly seal the lock hopper (10) when they are closed; - at least one process hopper (30) having a plurality of material chambers (31, 32, 33); - a transfer system (20) connecting the lock hopper (10) to each material chamber (31, 32, 33) and adapted to receive material from the lock hopper (10) through the outlet sealing element (12) and selectively transfer the received material from the lock hopper (10) to at least one selected material chamber (31, 32, 33) whereby different materials are transferable to different selected material chambers (31, 32, 33); and - a feeder system (40) connecting each material chamber (31, 32, 33) to the furnace (100), wherein the sealing elements (11, 12) are adapted to be opened alternatingly, so that the at least one process hopper (30) and the transfer system (20), downstream of the lock hopper (10), are separated by the sealing elements (11, 12) from an outside atmosphere, upstream of the lock hopper (10).
