A feed inlet structure for a burner for a suspension smelting furnace includes an inlet space defined inside the feed inlet structure. The feed inlet structure further includes an inlet opening and a feed distributor provided at least partly within the inlet space. The feed distributor is configured to separate objects from a standard feed, which objects have a particle size that is larger than a maximum particle size of the standard feed. The feed distributor includes at least one dividing plate including a first side having a first surface. The first surface of each dividing plate is configured to deviate a trajectory of at least some objects from a trajectory of the standard feed inside the feed inlet structure, when feed material including standard feed and objects is fed to the feed inlet structure.
A method for evening out the feeding of reaction gas when feeding solid material and reaction gas into a reaction shaft of a suspension smelting furnace by means of a burner. The method includes feeding solid material into the reaction shaft by means of a feeder pipe of the burner, and feeding reaction gas into the reaction shaft by means of a gas supply device of the burner. The method includes providing a gas deflection member in a reaction gas chamber of the burner. Presented is also a burner.
A fluidisation gas nozzle (100) and methods. Said nozzle comprises a nozzle inflow pipe (1) and a nozzle cap (2). The nozzle inflow pipe (1) comprises a first inflow pipe end (3) arranged outside of said nozzle cap, and a second inflow pipe end (4) arranged inside the nozzle cap (2). The nozzle cap (2) com- prises plurality of flow channels (5) ar- ranged alongside the second inflow pipe end (4), the flow channel (5) having a closed first end (6) and an open second end (7) opposite to said first end. Said closed first end (6) is connected to the second inflow pipe end (4) by a flowthrough hole (8), and said open second end (7) opening to a lower end of the nozzle cap (13) opening in direc- tion of the first inflow pipe end (3), such that it is provided a gas flowing route (A) in a first direction from the first end of the nozzle inflow pipe to the second end thereof, through the flowthrough holes and then in a second direction, that is at least essentially opposite to the first direction, through the flow channels from their first end to the open second end.
F23C 10/20 - Inlets for fluidisation air, e.g. gridsBottoms
F27B 15/10 - Arrangements of air or gas supply devices
B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles
B05B 1/00 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
The present invention relates to a suspension smelting furnace, comprising a reaction shaft (5), a settler (8), a first taphole (15), a second taphole (17) and feeding means (30) for feeding a molten material (31) to the suspension smelting furnace.
The present invention relates to a smelting furnace arrangement comprising a first smelting furnace (15a) and a second smelting furnace (15b), wherein the first and second smelting furnaces (15a, 15b) comprise a reaction shaft end comprising a reaction shaft end wall (16a, 16b) and an uptake shaft end comprising an uptake shaft end wall (21a, 21b), wherein the reaction shaft end wall (16a) of the first smelting furnace (15a) is located at a distance (X) from the reaction shaft end wall (16b) of the second smelting furnace (15b), and wherein the distance (X) is less than 20m.
A method for processing iron ore to obtain steel by feeding the DRI into a smelting furnace so as to obtain an intermediate iron product, which is then subsequently introduced into a conversion unit for obtaining steel form the intermediate iron product. Moreover, carbon is introduced into the process. As a consequence, a suitable carbon content may be achieved for the intermediate iron product such that impurities of the intermediate iron product may be reduced along with carbon contents thereof in a steel conversion process without sacrificing iron contents of the intermediate iron product. Simultaneously, suitable fluxes are fed into the smelting furnace together with the DRI, such that high-quality slag suitable as raw material for further processing is obtained therefrom. An associated smelting furnace arrangement is also disclosed.
A process and its relating plant for recycling zinc oxide residues. Thereby, zinc oxide residues are granulated to particles with a size of d80 between 0.3 and 5 mm, preferably between 0.5 and 2 mm. These particles are fed into a roaster where they are thermally treated at a temperature in the range of 500 and 1.200° C., preferably 800 to 1.100° C. in a fluidized bed to form a calcine. The zinc oxide residues are zinc oxide dusts with a particle size below d80 100 μm, preferably below d80 75 μm coming from kiln, submerges lances furnaces, ferric reduction furnaces, galvanizing and/or recycling processes, particularly recycling of steel, copper, lead, nickel and/or electronic scrap, and/or that the zinc oxide residues comes from foundry for lead and zinc, ashes and/or dross from a Zamac process, oxide zinc ash, catalysts, melting and casting of Zn and/or zinc slag.
A pallet car moving arrangement (1) configured to move pallet cars (2) along pallet car rails (3). The pallet car moving arrangement (1) comprises at least one rail (4), a moving mechanism (5) movable in opposite directions along the rail (4) and configured to engage the pallet car (2) for moving the pallet car (2) along the pallet car rails (3), and a drive device (6) for moving the moving mechanism (5) along said at least one rail (4).
B65G 25/04 - 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
B65G 25/08 - 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 impellers, e.g. pushers
B65G 47/40 - Devices for discharging articles or materials from conveyors by dumping, tripping, or releasing load-carriers by tilting conveyor buckets
A pallet car turning device (1) comprising a support frame (2) and a rotary frame (3) mounted on the support frame (2) and rotatable relative to the support frame (2) about a rotation axis (5). The rotary frame (3) comprises a receiving mechanism (6) configured to receive a pallet car (4) and to hold the pallet car (4) during the rotation of the rotary frame (3), and a rotating device (7) configured to rotate the rotary frame (3) about the rotation axis (5).
A metallurgical furnace including a hearth, a sidewall structure, and a surrounding cooling element structure including cooling elements. Each cooling element have a planar back surface. A surrounding binding structure including binding sections surrounds partly the surrounding surface. Adjacent binding sections of the surrounding binding structure are connected by tension assemblies. At least one planar back surface of at least one cooling element is parallel with and is in a horizontal direction of the metallurgical furnace supported by at least one planar surface means of at least one binding section of the surrounding binding structure. Said at least one cooling element of the surrounding cooling element structure is located at least partly between the surrounding surface and said one binding section.
A circulating fluidized bed (CFB) furnace (3) for heating and/or calcination of a material, wherein a hydrogen-enriched gas mixture (1) is used as fuel for the calcination process is disclosed. A process for calcination of a material, wherein a hydrogen-enriched gas mixture (1) is used as fuel for the calcination process is further disclosed.
C01F 7/441 - Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
C01F 7/445 - Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination making use of a fluidised bed
12.
SWIRL INDUCED COMBUSTION IN CIRCULATING FLUIDIZED BED SYSTEMS
A circulating fluidized bed (CFB) furnace for heating and calcination of a material, wherein the injection ports for combustion fuel (1) and secondary combustion air (2) are arranged to induce swirling in the furnace. A process for heating and/or calcination of a material, wherein the injection ports for combustion fuel (1) and secondary combustion air (2) are arranged to induce swirling in the furnace.
F23C 10/02 - Apparatus in which combustion takes place in a fluidised bed of fuel or other particles with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
F23C 10/18 - Apparatus in which combustion takes place in a fluidised bed of fuel or other particles DetailsAccessories
F27B 15/00 - Fluidised-bed furnacesOther furnaces using or treating finely-divided materials in dispersion
13.
ARRANGEMENT AND METHOD FOR HEAT TRANSFER EVALUATION
Disclosed is an arrangement and a method for facilitating evaluation of heat transfer to an evaporating medium at an evaporator channel (110). The arrangement comprises a first sensor (310) configured for measuring volume flow of the evaporating medium at an inlet region of the evaporator channel (110), a second sensor (312) configured for measuring temperature of the evaporating medium at the inlet region of the evaporator channel (110), a third sensor (314) configured for measuring pressure of the evaporating medium at the inlet region of the evaporator channel (110), and a fourth sensor (320) configured for measuring pressure of the evaporating medium at an outlet region of the evaporator channel (110).
A method for handling fine tailings (1) from mineral treatment processes is disclosed. An arrangement for handling fine tailings (1) from mineral treatment processes is further disclosed.
A feed inlet structure (10) for a burner (4) for a suspension smelting furnace comprises an inlet space (14) defined inside the feed inlet structure. The feed inlet structure (10) further comprises an inlet opening (15) and a feed distributor (16) provided at least partly within the inlet space (15). The feed distributor (16) is configured to separate objects from a standard feed, which objects have a particle size that is larger than a maximum particle size of the standard feed. The feed distributor (16) comprises at least one dividing plate (17) comprising a first side (18) having a first surface (19). The first surface (19) of each dividing plate (17) is configured to deviate a trajectory (27) of at least some objects from a trajectory (28) of the standard feed inside the feed inlet structure (10), when feed material comprising standard feed and objects is fed to the feed inlet structure.
A process and its relating plant for thermal conversion of aluminum chloride hydrate into aluminum oxide and gaseous hydrogen chloride. In a first step, aluminum chloride hydrate is fed into a decomposition reactor where it is heated to a temperature between 120 and 400° C. Afterwards, the partially decomposed aluminum chloride hydrate is finally calcined to aluminum oxide at a temperature between 850 and 1200° C. in a second reactor. The aluminum chloride hydrate is admixed with aluminum oxide in an intensive mixer with a mass ratio between 1:1 and 10:1 aluminum chloride hydrate to aluminum oxide for using a fluidized bed reactor as a decomposition reactor.
C01F 7/306 - Thermal decomposition of hydrated chlorides, e.g. of aluminium trichloride hexahydrate
B01J 8/38 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Burners, boilers and heaters; heaters for heating ore; heat exchangers, other than parts of machines; gas cleaning apparatus; separators for purifying gas; cooling apparatus; industrial fluidized bed reactors; furnaces for industrial use; smelting furnaces.. Treatment and processing of ores and ore concentrates; consulting services in the field of treatment and processing of ores and ore concentrates..
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Ore treating machines; ore separators [machines]; heat
exchangers being parts of machines; granulating machines for
ore processing; separating machines for ore processing;
industrial fluidized bed reactors. Burners, boilers and heaters; heaters for heating ore; heat
exchangers, other than parts of machines; gas cleaning
apparatus; separators for purifying gas; cooling apparatus;
furnaces for industrial use; smelting furnaces. Treatment and processing of ores and ore concentrates;
consulting services in the field of treatment and processing
of ores and ore concentrates. Engineering services; technological consultancy; services
for monitoring industrial processes; computer system
monitoring services; machine condition monitoring;
monitoring of computer systems by remote access; quality
control, analysis, assessment, testing and technological
consultancy services; computer programming; computer system
analysis; computerized data storage.
The disclosure relates to a plant for thermal treatment of solid material to decrease the content of heavy metal elements. The plant comprises one reactor for heating the solid material, which is arranged to have both an oxidizing atmosphere and a reducing atmosphere, and the plant includes a hot gas generator, which is arranged to provide hot gas to the reactor. The disclosure also relates to a method for thermal treatment of solid material and to a method for producing fertilizer precursor.
A62D 3/40 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by heating to effect chemical change, e.g. by pyrolysis
C05B 13/02 - Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
A62D 3/38 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by oxidationProcesses for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by combustion
A62D 3/37 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by reduction, e.g. hydrogenation
F27B 7/36 - Arrangements of air or gas supply devices
20.
COOLING ELEMENT AND A METHOD IN CONNECTION WITH A COOLING ELEMENT
A cooling element (4) for a furnace (1) comprises a first side (7) configured to be directed towards the inside (3) of the furnace (1), a second side (8) opposite to the first side (7) and configured to be directed away from the inside (3) of the furnace, and a cooling fluid channel system (6) for cooling fluid circulation. The cooling element (4) further comprises a monitoring channel system (10) comprising at least one monitoring channel (11) for pressure medium. At least a portion (12) of the monitoring channel (11) extends in a portion (13) of the cooling element (4) provided between the first side (7) and a plane (14) defined by the points (15) of the cooling fluid channel system (10) closest to the first side (7).
Presented is a method for evening out the feeding of reaction gas when feeding solid material and reaction gas into a reaction shaft (1) of a suspension smelting furnace (2) by means of a burner (3). The method comprises feeding solid material into the reaction shaft (1) by means of a feeder pipe (4) of the burner (3), and feeding reaction gas into the reaction shaft (1) by means of a gas supply 5 device (5) of the burner (3). The method comprises providing a gas deflection member (12) in a reaction gas chamber (6) of the burner (3). Presented is also a burner (1).
A fluidizing nozzle for introducing fluid into a fluidized bed reactor and a fluidized bed reactor. The fluidizing nozzle includes a nozzle tube limiting at least a part of a feed channel in which fluid is configured to flow, at least one fluid discharge opening arranged near a downstream end of the nozzle tube, and a pot-like hood, which sealingly closes the nozzle tube with a hood cover of the pot-like hood at the downstream end of the nozzle tube at which said at least one fluid discharge opening is provided. The feed channel is provided with a flow restriction element defining at least one flow restriction feed channel upstream of said at least one fluid discharge opening.
B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique
B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles
B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Ore treating machines; ore separators [machines]; heat exchangers being parts of machines; granulating machines for ore processing; separating machines for ore processing; industrial fluidized bed reactors.
(2) Burners, boilers and heaters; heaters for heating ore; heat exchangers, other than parts of machines; gas cleaning apparatus; separators for purifying gas; cooling apparatus; furnaces for industrial use; smelting furnaces. (1) Treatment and processing of ores and ore concentrates; consulting services in the field of treatment and processing of ores and ore concentrates.
(2) Engineering services; technological consultancy; services for monitoring industrial processes; computer system monitoring services; machine condition monitoring; monitoring of computer systems by remote access; quality control, analysis, assessment, testing and technological consultancy services; computer programming; computer system analysis; computerized data storage.
40 - Treatment of materials; recycling, air and water treatment,
11 - Environmental control apparatus
42 - Scientific, technological and industrial services, research and design
Goods & Services
Ore treating machines; ore treating machines, namely, ore separators; heat exchangers being parts of machines; granulating machines for ore processing; separating machines for ore processing; industrial fluidized bed reactors Treatment and processing of ores and ore concentrates; consulting services in the field of treatment and processing of ores and ore concentrates Gas burners; Heating boilers; Air and gas heaters; Heating units for industrial purposes, namely, heaters for heating ore; Heat exchangers, other than parts of machines; Gas cleaning apparatus, namely, separators for the cleaning and purification of gases; Separators for purifying gas; Air and gas cooling apparatus; Furnaces for industrial use; Smelting furnaces Engineering services; technological consultancy in the field of ore processing; services for monitoring industrial processes being quality control services for the ore processing industry; computer system monitoring services by remote access to ensure proper functioning; machine condition monitoring being quality control for others; monitoring of computer systems by remote access to ensure proper functioning; quality control, analysis, assessment, testing and technological consultancy services, all being quality control for others; computer programming; computer system analysis; electronic computerized data storage
A method for processing iron ore to obtain steel (501) by feeding the DRI into a smelting furnace (1) so as to obtain an intermediate iron product, which is then subsequently introduced (301) into a conversion unit for obtaining steel (501) form the intermediate iron product. Moreover, carbon is introduced (401) into the process. As a consequence, a suitable carbon content may be achieved for the intermediate iron product such that impurities of the intermediate iron product may be reduced along with carbon contents thereof in a steel conversion process without sacrificing iron contents of the intermediate iron product. Simultaneously, suitable fluxes are fed (201; 202) into the smelting furnace (1) together with the DRI, such that high-quality slag suitable as raw material for further processing is obtained therefrom. An associated smelting furnace arrangement is also disclosed.
A cyclone separator arrangement includes a preceding apparatus having an outlet, and a cyclone separator having an inlet. The arrangement further includes a crossover duct connected to the outlet and the inlet for supplying gas flow including particles from the preceding apparatus to the cyclone separator. The preceding apparatus has a horizontal inner diameter (D), and a flow channel having a cross-section having a height (H) and a width (d), said width (d) relating to the inner diameter (D) such that 0.15×D
The invention is directed to a process and its relating plant for recycling zinc oxide residues. Thereby, zinc oxide residues are granulated to particles with a size of d80 between 0,3 and 5 mm, preferably between 0.5 and 2 mm. These particles are fed into a roaster where they are thermally treated at a temperature in the range of 500 and 1.200 °C, preferably 800 to 1.100 °C in a fluidized bed to form a calcine. The zinc oxide residues are zinc oxide dusts with a particle size below d80 100 µm, preferably below d80 75 µm coming from kiln, submerges lances furnaces, ferric reduction furnaces, galvanizing and/or recycling processes, particularly recycling of steel, copper, lead, nickel and/or electronic scrap, and/or that the zinc oxide residues comes from foundry for lead and zinc, ashes and/or dross from a Zamac process, oxide zinc ash, catalysts, melting and casting of Zn and/or zinc slag.
A pipe flange coupling device, which is attachable in connection with a first pipe of a first pipe flange, having pawls engaging a second pipe flange of a second pipe. The pawls are fixed to a spindle retractable by a translation arrangement so as to pull the second pipe flange against the first pipe flange. More particularly, the translation arrangement is configured such that, when the flanged pipes are coupled and the pawls are retracted, a force exerted on the pawls towards the extended position is transmitted via the translation arrangement against a mechanical stopper. Moreover, the translation arrangement is biased such that the translation arrangement must work against this bias in order to extend the pawls and release the flanged pipes coupled to each other.
F16L 23/036 - Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
F16L 37/124 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members using bolts, fixed to a flange, which are able to tilt in slots of another flange, and being maintained there by the tightening of nuts
Presented is a metallurgical furnace (1) comprising a hearth (2), a sidewall structure (3), and a surrounding cooling element structure (26) comprising cooling elements (12). Each cooling element (12) have a planar back surface (13). A surrounding binding structure (5) comprising binding sections (6) surrounds partly the surrounding surface (24). Adjacent binding sections (6) of the surrounding binding structure (5) are connected by tension assemblies (9). At least one planar back surface (13) of at least one cooling element (12) is parallel with and is in a horizontal direction of the metallurgical furnace (1) supported by at least one planar surface means (43) of at least one binding section (6) of the surrounding binding structure (5). Said at least one cooling element (12) of the surrounding cooling element structure (26) is located at least partly between the surrounding surface (24) and said one binding section (6).
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Ore treating machines; ore separators [machines]; heat exchangers being parts of machines; granulating machines for ore processing; separating machines for ore processing. Burners, boilers and heaters; heaters for heating ore; heat exchangers, other than parts of machines; gas cleaning apparatus; separators for purifying gas; cooling apparatus; industrial fluidized bed reactors; furnaces for industrial use; smelting furnaces. Treatment and processing of ores and ore concentrates; consulting services in the field of treatment and processing of ores and ore concentrates. Engineering services; technical consultancy; monitoring industrial processes; computer system monitoring services; machine condition monitoring; monitoring of computer systems by remote access; quality control, analysis, assessment, testing and consultancy services; computer programming; computer system analysis; computerized data storage.
Sintering machines for processing ore; emission reduction
units for sintering machines for processing ore; all the
aforementioned goods relating to ore processing and not
relating to 3D printing. Sintering furnaces for processing ore; sintering plants for
processing ore; gas purifying installations; all the
aforementioned goods relating to ore processing and not
relating to 3D printing.
32.
Process and plant for thermal decomposition of aluminium chloride hydrate into aluminium oxide
The invention relates to a process and its relating plant for thermal conversion of aluminum chloride hydrate into aluminum oxide and gaseous hydrogen chloride. In a first step, aluminum chloride hydrate is fed into a decomposition reactor where it is heated to a temperature between 120 and 400° C. Afterwards, the partially decomposed aluminum chloride hydrate is finally calcined to aluminum oxide at a temperature between 850 and 1200° C. in a second reactor. The aluminum chloride hydrate is admixed with aluminum oxide in an intensive mixer with a mass ratio between 1:1 and 10:1 aluminum chloride hydrate to aluminum oxide for using a fluidized bed reactor as a decomposition reactor.
C01F 7/306 - Thermal decomposition of hydrated chlorides, e.g. of aluminium trichloride hexahydrate
B01J 8/38 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation
Sintering machines for processing ore; emission reduction units for sintering machines for processing ore; all the aforementioned goods relating to ore processing and not relating to 3D printing and energy sector. Sintering furnaces for processing ore; sintering plants for processing ore; gas purifying installations; all the aforementioned goods relating to ore processing and not relating to 3D printing and energy sector.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrostatic precipitators for cleaning gases and air. Technical inspection services; evaluation of performance of industrial processes; industrial testing; industrial testing and simulation; engineering services; industrial process information measuring and analysis; engineering research; engineering surveying; engineering testing; technical testing; engineering design services; engineering consultancy; technical consultancy; preparation of engineering reports.
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Industrial fluidized bed reactors; ore treating machines; ore separators [machines]; heat exchangers being parts of machines; granulating machines for ore processing; separating machines for ore processing.
(2) Gas burners, liquid fuel burners, heating boilers, water heaters, heat exchangers for chemical processing, heat exchangers as part of integrated mineral processing systems, industrial boilers, and gas generating furnaces for industrial purposes; heaters for heating ore; heat exchangers, other than parts of machines; gas cleaning apparatus, namely gas purifiers and gas scrubbing machines; separators for purifying gas; cooling apparatus, namely air coolers, cooling units for industrial process cooling and cooling evaporators. (1) Treatment and processing of ores and ore concentrates; consulting services in the field of treatment and processing of ores and ore concentrates.
(2) Industrial engineering and chemical engineering advisory services in the field of ore processing; engineering testing namely, technical testing of mineral processing equipment to improve efficiency; environmental engineering services; engineering design services namely designing mineral processing plants; technological consultancy in the field of ore processing technology; remote monitoring of ore processing plants and machinery; computer system monitoring services; machine condition monitoring and inspection services for ore processing systems; monitoring of computer systems by remote access; providing quality control consulting, namely monitoring, testing, and assessing of ore processing machinery and systems; testing and analysis of processed minerals; quality control services for assessing the efficiency of industrial processes in mineral processing installations; computer programming; computer system analysis; providing electronic data storage for archiving business and research information on industrial processes.
40 - Treatment of materials; recycling, air and water treatment,
07 - Machines and machine tools
11 - Environmental control apparatus
42 - Scientific, technological and industrial services, research and design
Goods & Services
Treatment and processing of ores and ore concentrates; consulting services in the field of treatment and processing of ores and ore concentrates Industrial fluidized bed reactors; ore treating machines; ore separators being ore treating machines; heat exchangers being parts of machines; granulating machines for ore processing; separating machines for ore processing Gas burners; liquid fuel burners; heating boilers; air, gas and water heaters; heaters for heating ore, namely, heating units for industrial purposes; heat exchangers, other than parts of machines; gas cleaning apparatus, namely, gas purification equipment; separators for purifying gas; cooling apparatus, namely, air cooling apparatus, cooling units for industrial purposes, and cooling evaporators Engineering services; technological consultancy in the field of ore processing; monitoring industrial processes for process control; computer system monitoring services by remote access to ensure proper functioning; machine condition monitoring to assess proper functioning and performance; monitoring of computer systems by remote access to ensure proper functioning and provide quality assessment on plant performance; quality control, analysis, assessment, testing and consultancy services, for operation and maintenance; computer programming; computer system analysis; electronic computerized data storage including digital platforms
44.
Method and apparatus for continuously ensuring sufficient quality of green pellets
A method for controlling pellet quality in iron ore production includes the steps of mixing water, binder and iron ore particles in at least one mixer to form a mixture (step (i)) and pelletizing the mixture into green pellets (step (ii)). Between step (i) and step (ii), a part of the mixture is taken in a sampling operation, formed into a test specimen and subjected to a test.
A method for cleaning of a roller screen transporting and screening particles by means of at least three rotating rollers. The rollers are installed in succession at given clearances and arranged transversally in relation to the transport direction of the particles to screen a desired range of particle sizes. At least one roller changes its circumferential velocity and/or its rotational direction over time at defined time intervals for defined time periods such that for this defined time period for at least one pair of neighbored rollers one roller has a higher circumferential velocity than the other and/or both rollers roll in opposite rotational directions.
A device for cooling a fine-grained solid includes a fluidized bed cooler/heater in which the solid is fluidized with a fluidizing gas and thereby releases energy in the form of heat within the cooler/heater at least two cyclones which are connected in parallel. The cyclones are arranged such that after the fluidization of the solid the fluidizing gas passes through the cyclones so contained particles are removed.
B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles
B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
B01J 8/26 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
F27B 15/00 - Fluidised-bed furnacesOther furnaces using or treating finely-divided materials in dispersion
A reactor for the combustion of sulfur includes reactor walls which form a symmetrical base area b, whereby at least two burners are mounted each with a burner holding device. All burner holding devices have the same distance to each other and each burner holding device has the same distance to the a center point z of the base area b. At least one burner holding device is arranged such that during operation the flame of said burner shows an angle α between 0 and 45° to a center axis a, which is defined as the shortest connection between this burner holding device and the center point z.
F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Industrial fluidized bed reactors; ore treating machines;
ore separators [machines]; heat exchangers being parts of
machines; granulating machines for ore processing;
separating machines for ore processing. Burners, boilers and heaters; heaters for heating ore; heat
exchangers, other than parts of machines; gas cleaning
apparatus; separators for purifying gas; cooling apparatus. Treatment and processing of ores and ore concentrates;
consulting services in the field of treatment and processing
of ores and ore concentrates. Engineering services; technological consultancy; monitoring
industrial processes; computer system monitoring services;
machine condition monitoring; monitoring of computer systems
by remote access; quality control, analysis, assessment,
testing and consultancy services; computer programming;
computer system analysis; computerized data storage.
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Ore treating machines; ore separators [machines]; heat exchangers being parts of machines; granulating machines for ore processing; separating machines for ore processing. Burners, boilers and heaters; heaters for heating ore; heat exchangers, other than parts of machines; gas cleaning apparatus; separators for purifying gas; cooling apparatus; industrial fluidized bed reactors. Treatment and processing of ores and ore concentrates; consulting services in the field of treatment and processing of ores and ore concentrates. Engineering services; technical consultancy; monitoring industrial processes; computer system monitoring services; machine condition monitoring; monitoring of computer systems by remote access; quality control, analysis, assessment, testing and consultancy services; computer programming; computer system analysis; computerized data storage.
A feed mixture distribution device configured to even out a feed of feed mixture in an annular feed mixture feed channel of a burner. The feed mixture distribution device includes a cylindrical member having a cylindrical wall, a first end, a second end, and a longitudinal central axis X. The cylindrical member is at the first end provided with rectangular flat plate means, which extend radially from the cylindrical wall of the cylindrical member and which are arranged symmetrically about the longitudinal central axis X of the cylindrical member. The cylindrical wall of the cylindrical member is between the rectangular flat plate and the second end provided with helical plate means arranged symmetrically about the longitudinal central axis X of the cylindrical member.
A method and its related plant for the thermal treatment of iron containing oxide, in which fine-grained solids are heated in a preheating calcining stage and exposed to a reduction gas in a subsequent reduction stage. Off-gas from the reduction stage is guided through a separation device wherein water originating from the reduction stage is separated. The water separated in the separation device is recycled into a water treatment section, from which the recycled water is supplied to a water electrolysis plant and/or a steam reforming plant producing hydrogen, and the produced hydrogen is supplied to the reduction stage as reductant and/or to the preheating calcining stage as fuel and/or to the gas heater as fuel and/or from which the recycled water is supplied to the separation device.
The invention describes a method for controlling pellet quality in iron ore production, comprising the steps of mixing water, binder and iron ore particles in at least one mixer to form a mixture (step (i)) and pelletizing the mixture into green pellets (step (ii)). Between step (i) and step (ii), a part of the mixture is taken in a sampling operation, formed into a test specimen and subjected to a test.
A cyclone for the separation of solid particles and/or at least one liquid from a fluid, featuring a housing, an inlet opening for introducing the fluid together with the solid particles and/or the at least one liquid into the housing, a discharge port for the solid particles and/or the at least one liquid, a dip tube for discharging the fluid from the housing, and at least two guide vanes. Each guiding vanes shows a geometrical form with at least three edges e1, e2, e3. Further, each guide vane is directly or indirectly fixed to the housing with at least one edge e3 at a fixing point, whereby an area a is defined as the cross-sectional area of the housing intersecting the fixed edges e3. In addition, each guide vane shows at least two edges e1 and e2 which are not fixed to the housing, whereby the first edge e1 has a distance d1 and the second edge e2 has a distance d2, and whereby d11,25*L1.
B01D 45/12 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
B04C 5/103 - Bodies or members, e.g. bulkheads, guides, in the vortex chamber
B04C 5/13 - Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamberDischarge from vortex finder otherwise than at the top of the cycloneDevices for controlling the overflow
A method and an arrangement for controlling a burner of a suspension smelting furnace. The burner includes a reaction gas feeding device, and a fine solids feeding device. The fine solids feeding device being at an upstream end of the fine solids feeding device pivotably supported in the reaction gas feeding device. The burner including by at least one first mechanical actuator configured to center the fine solids feeding device in the annular reaction gas outlet opening. Said at least one first mechanical actuator being in response to receiving the control signal configured to perform a centering action to center the fine solids channel in the annular reaction gas outlet opening.
A process for roasting of metal concentrate wherein concentrate particles are fed into a roaster where they are thermally treated at a temperature in the range of 500 and 1200° C. in a fluidized bed to form a calcine. At least parts of the calcine are withdrawn from the roaster together with a gas stream as a solid fraction. Concentrate particles with a diameter at least 50% smaller than the average diameter of the concentrate particles are separated as small particles and/or particles from the gas-solid-fraction are separated in at least one step as small calcine particles and/or particles are gained in another hydrometallurgical step as other particles. Defined particles are pelletized, whereby at least 80% of the pellets feature a diameter of at least 80% of the concentrate particles average diameter. The pellets are fed into the roaster.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Building construction; building repair; installation services, namely, installation of facilities to produce sulfuric acid; construction and real estate development of facilities to produce sulfuric acid; construction of production plants and facilities; services relating to the building and operation of the aforementioned plants and facilities, namely, inspection services in the course of construction of facilities to produce sulfuric acid, construction management, and planning and laying out of production plants and facilities Scientific and technological services, namely, scientific research, analysis and testing in the field of sulfuric acid and research and design in the field of sulfuric acid production; industrial analysis and research services, namely, chemical analysis, scientific research, technical consultation and industrial research in the field of engineering related to sulfuric acid; engineering of facilities to produce sulfuric acid; process engineering consultancy
A method for refining sulfidic copper concentrate includes feeding sulfidic copper concentrate and oxygen-bearing reaction gas and slag forming material into a reaction shaft of a suspension smelting furnace, collecting slag and blister copper in a settler of the suspension smelting furnace to form a blister layer containing blister copper and a slag layer, and discharging slag and blister copper separately from the settler of the suspension smelting furnace, so that slag is fed into an electric furnace. The method further includes feeding a part of the sulfidic copper concentrate into the electric furnace.
A process of treating complex sulfide concentrate includes the steps of roasting wet or slurried complex sulfide concentrate in a furnace at a temperature of at least 720° C. to obtain a calcine; smelting the calcine under inert or oxygen free atmosphere in a smelting furnace to obtain a matte, and optionally granulating the matte to obtain a granulated matte.
3F; providing an alkaline-sulfuric compound as an additive; and calcining a mixture of the raw material with the additive to obtain a product, including a citrate soluble phosphate compound.
Provided are a method and to an arrangement for monitoring characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace. The arrangement comprises a process monitoring unit having a frame mounted by means of a mounting means on the metallurgical furnace outside the furnace space of the furnace shell. Also provided is a process monitoring unit for use in the method and/or in the arrangement.
Provided are a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these for feeding reaction gas and fine solids into a reaction shaft of a suspension smelting furnace, and a fine solids feeding apparatus for a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these. The fine solids feeding apparatus comprises gas outlets in a fine solids discharge channel upstream of a downstream outlet end of the fine solids discharge channel. The gas outlets comprise spiral path guiding members configured to facilitate gas to flow from the gas outlets in a spiral flow path around a center axis A of the fine solids discharge channel.
In a process for producing uranium and/or at least one rare earth element selected from the group consisting of cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium and yttrium out of an ore, the ore is mixed with sulphuric acid with a concentration of at least 95 wt.-% to a mixture, wherein the mixture is granulated to pellets. The pellets are fed into at least one fluidized bed fluidized by a fluidizing gas for a thermal treatment at temperatures between 200 and 1000° C. The at least one fluidized bed is developed such that it at least partly surrounds a gas supply tube for a gas or a gas mixture fed into the reactor and the gas or gas mixture is used as a heat transfer medium.
The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate or matte burner (1) of a suspension smelting furnace (2). The arrangement comprising a fluidization arrangement (3) for feeding fluidized fine-grained matter into a dosing bin (4), and a conveyor means (6) for feeding fluidized fine-grained matter from the dosing bin (4) to the concentrate or matte burner (1) of the suspension smelting furnace (2), and a loss-in-weight controller (5) between the dosing bin (4) and the conveyor means (6). The arrangement comprises an impact cone (8) arranged below a filling valve (7) between the fluidization arrangement (3) and the dosing bin (4) for distributing fluidized fine-grained matter flowing from the fluidization arrangement (3) within the dosing bin (4).
B65G 37/00 - Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
F27D 3/00 - ChargingDischargingManipulation of charge
F27D 3/18 - Charging particulate material using a fluid carrier
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
3 and water, wherein the gas mixture is cooled by means of a first heat exchanger carrying a coolant. The temperature of the coolant lies above the dew point of the gas or gas mixture.
F28F 27/02 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
F28D 20/00 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or
65.
Method and carrier for transporting reductant such as coke into a metallurgical furnace and production method of the carrier
Provided is a method for transporting reductant such as coke into a metallurgical furnace containing a bottom layer containing molten metal and a top layer on top of the bottom layer containing molten metal. The method comprises a first providing step for providing reductant, a second providing step for providing metal, a forming step for forming carriers containing reductant and metal of reductant provided in the first providing step and metal provided in the second providing step, and a feeding step for feeding carriers formed in the forming step into the metallurgical furnace. Also provided is a carrier and a production method for producing carriers.
Provided herein is a process of fire refining blister copper, comprising the steps of (a) providing molten blister copper into an anode furnace; (b) when sulfur concentration of the molten blister copper provided in step (a) is above a first prescribed target value, oxidizing sulfur in the molten blister copper by blowing oxygen containing gas into the molten blister copper until the first prescribed target value has been reached; (c) subsequently lowering the sulfur and oxygen content in blister copper by blowing inert gas into the molten blister copper until a second prescribed target value has been reached, wherein the inert phase (c) is continued until the second prescribed target value of the oxygen concentration is below 4000 ppm, and the second prescribed target value of the sulfur concentration is below 500 ppm; (d) when certain condition(s) occur, subsequently reducing oxygen in the blister copper; and (e) optionally casting.
Provided is a method for melting copper scrap and/or refining blister copper, comprising the steps of: (a) charging of copper scrap into an empty anode furnace and melting the copper scrap; (b) charging molten blister copper into the anode furnace; (c) optionally charging more copper scrap into the anode furnace and melting the copper scrap; (d) optionally repeating steps (b) and/or (c) one or more times until the anode furnace is full and a desired amount of copper scrap has been charged and melted until a final copper batch is obtained; and (e) refining the final copper batch to obtain anode copper.
F23D 14/22 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
F23D 14/32 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
F23D 14/56 - Nozzles for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces
68.
Method and arrangement for operating a metallurgical furnace and computer program product
superheat set), the method comprises an adjusting step for adjusting to adjust the actual superheat temperature. Also provided are computer program products.
3 not absorbed in the first absorption stage is supplied to a second absorption stage (secondary absorber) for the further absorption in concentrated sulfuric acid, and wherein the sulfuric acid is cooled after passing through the two absorption stages. The cooling of the sulfuric acid is effected in at least two heat exchangers connected in parallel, wherein one of the at least two heat exchangers is operated as partial evaporator and is cooled with boiler feed water/steam and the other one is cooled with cooling water and operated as pure acid cooler.
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
The invention relates to a method for controlling suspension in a suspension smelting furnace. The method comprises feeding additionally to pulverous solid matter and additionally to reaction gas reducing agent into the suspension smelting furnace, wherein reducing agent is fed in the form of a concentrated stream of reducing agent through the suspension in the reaction shaft onto the surface of the melt to form a reducing zone containing reducing agent within the collection zone of the melt.
Provided are a method and an arrangement for monitoring performance of a burner of a suspension smelting furnace. The burner is arranged at the top structure of a reaction shaft of the suspension smelting furnace. The burner has a solids feeding channel that has a solids outlet opening up into the reaction shaft, and a reaction gas channel comprising a reaction gas channel a that has a reaction gas outlet opening up into the reaction shaft. The arrangement comprises at least one imaging means for producing images representing the cross-section of the reaction gas channel, and a processing means for receiving images of the cross-section of the reaction gas channel from the imaging means.
F23N 5/08 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
72.
Process and plant for the production of liquid acid
A process for the production of liquid acid, comprising the steps of: feeding liquid acid with a first concentration into a gas purification; passing a gas through the gas purification such that a second concentration of the liquid acid is reached; withdrawing the liquid acid from the sump of the gas purification, where in the gas purification sump is divided by a partition wall into a first and a second section. The concentration of the liquid acid collected in the first section is adjusted to the first concentration. The liquid acid with the first concentration from the first section is at least partially fed back into step and the liquid acid with the second concentration collected in the second section is at least partially withdrawn as product.
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
The present invention provides a method of converting copper containing material to blister copper comprising: (a) providing copper containing material comprising copper sulfides and iron sulfides, whereby the copper containing material comprises at least 35 wt % copper of the total weight of the copper containing material; (b) reacting the copper containing material in a furnace with an oxygen containing gas, in the absence of flux, to effect oxidation of iron sulfide and copper sulfide, and controlling injection of the oxygen containing gas and the temperature so that the resulting converter slag is in a molten phase to obtain blister copper and converter slag.
The invention relates to a method and to an arrangement for removing gaseous elementary mercury from a stream of gas and to an arrangement for carrying out the method. The arrangement comprises a first washing tower (2) for receiving a stream of gas, a second washing tower (6) for receiving a stream of once processed gas (5) from the first washing tower (2), and a third washing tower (9) for receiving a stream of twice processed gas (23) from the second washing tower (6) and configured for discharging a stream of cleaned gas (12).
B01D 53/78 - Liquid phase processes with gas-liquid contact
B01D 53/04 - 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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
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
75.
Method for producing manganese containing ferroalloy
To produce manganese containing ferroalloy for steel production, an agglomeration mixture is produced which comprises chromite ore concentrate and manganese ore fines with a grain size smaller than 6-9 mm. The mixture is agglomerated to produce green agglomeration products, such as pellets or other types of agglomerates. The green agglomeration products are sintered in a steel belt sintering furnace to produce either sinter or sintered pellets. The sinter or sintered pellets are smelted in a submerged arc furnace to produce manganese and chromium containing ferroalloy. The ferroalloy produced by the method comprises 6.0-35 w-% manganese and 31-54 w-% chromium.
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
C21C 5/52 - Manufacture of steel in electric furnaces
C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
C22B 9/10 - General processes of refining or remelting of metalsApparatus for electroslag or arc remelting of metals with refining or fluxing agentsUse of materials therefor
C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
76.
Method and wet scrubber for removing particles from gases
Provided are a method and to a wet scrubber for removing particles from gas. The wet scrubber includes a second vertical cylindrical vessel having a second upper end for receiving an accelerated stream of liquid- and particles-laden gas from a vertically oriented venturi channel and a second lower end for feeding the accelerated stream of liquid- and particles-laden gas to a swirl generator. The second vertical cylindrical vessel and the swirl generator are arranged in a vertical cylindrical separation space of a first vertical cylindrical vessel. The swirl generator is arranged above the liquid tank.
B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
The present invention relates to a method of treating lead anode slime having high fluorine and arsenic content, in particular to a method comprising smelting of the lead anode slime and cleaning the produced off gases in a one or more wet gas cleaning stages.
A lance for top submerged lancing injection in a pyro-metallurgical operation, wherein the lance has at least two substantially concentric pipes, with an annular passage for oxygen-containing gas defined between an outermost one of the pipes and a next adjacent pipe and a further passage for fuel defined within an innermost one of the pipes; the outermost pipe has a lower part of its length, from a submergible lower outlet end of the lance, by which the outermost pipe extends beyond an outlet end of the or each other pipe to define between the outlet end of the outermost pipe and the outlet end of the or each other pipe a chamber with which the passage for oxygen-containing gas communicates; and the lance further includes a defined gas flow-modifying device that is disposed in a lower end section of the passage for oxygen-containing gas.
Provided are a method and an arrangement for feeding process gases from a suspension smelting furnace into a waste heat boiler. The arrangement comprises a feeding throat for feeding process gas. The feeding throat is connected to an uptake inner space at an exit. The feeding throat is connected to the waste heat boiler at an entrance. The feeding throat having a feeding channel comprising a channel inner roof. At least one of an uptake inner roof of the uptake of the suspension smelting furnace and the channel inner roof of the feeding channel of the feeding throat is provided with an angled and/or curved section that slopes at least partly downwardly in an angled and/or curved manner in the direction towards the entrance.
A method for the treatment of flue dusts containing arsenic and/or antimony from pyrometallurgical methods, wherein a reducing agent is added to the flue dusts, the flue dusts are heated together with the reducing agent, and volatile components are separated from a slag. The reducing agent is a carbonaceous compound.
Provided is an arrangement for sealing a bellows cylinder in a pressure block of a pressure ring assembly. The bellows cylinder is located in a cavity formed in the pressure block and is operated by hydraulic fluid to give pressure against a contact shoe of a contact shoe ring arranged on the inside of the pressure ring assembly. The bellows cylinder is sealed to the cavity. A sealing bowl is arranged on the bellows on the inner side of the pressure block. The sealing bowl has an essentially flat surface towards the contact shoe and is provided with a side edge extending into the cavity. A circumferential groove containing a gasket ring is on the side wall of the cavity. A flexible sealing ring is arranged around the gasket ring to give tension and pressure on the gasket ring against the side edge of the sealing bowl.
Burner assembly and method for combustion of gaseous of liquid fuel The invention relates to a burner assembly (1) and a method for combustion of gaseous or liquid fuel to heat an industrial furnace (9) having a combustion chamber (2), at least one main combustion air inlet (3) for the supply of preheat-ed combustion air (4) into the combustion chamber (2), a burner (5) with at least one fuel feed (7) and at least one air feed (8) for supply of fuel and primary air into a the combustion chamber (2), wherein the burner (5) is positioned adjacent to a combustion zone of the combustion chamber (2) such that the combustion air (4) flowing into the combustion chamber (2) through the main combustion air inlet (3) is passing the burner (5) in the combustion zone and is then deflected such that the flow of preheated combustion air and the smaller flows of fuel and primary air are flowing mainly in parallel from the burner (5) to the furnace (9), and a control unit for controlling the supply of fuel and maybe primary air into the combustion chamber (2). The control unit is adapted to supply the fuel and/or the primary air from the fuel and/or air feed (7, 8) into the combustion chamber (2) with an exit velocity higher than 150 m/s.
F23C 9/00 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
F23D 14/22 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
F23C 7/06 - Disposition of air supply not passing through burner for heating the incoming air
F27D 99/00 - Subject matter not provided for in other groups of this subclass
F23D 99/00 - Subject matter not provided for in other groups of this subclass
An electrode slipping device comprises an upper holder and a lower holder, both holders containing one or more clamping shoes and one or more clamping cylinders in co-operation with the clamping shoes. The clamping shoes are operable between a position where the electrode is clamped and a position where the electrode is unclamped. The clamping cylinder is connected to the electrode holder by first fastening means and to the clamping shoe by second fastening means such that the clamping cylinder can be released from engagement with the holder by unlocking both sets of fastening means.
Provided is an arrangement for cooling channels in an electrode column assembly of an electric arc furnace, wherein the lower part of the electrode column assembly is provided with a contact shoe ring formed of a plurality of contact shoe elements, a pressure ring formed of a plurality of pressure blocks, and a heat shield located above the pressure ring and formed of a plurality of heat shield segments. The contact shoe elements and/or the pressure blocks are provided with channels for a cooling liquid to flow therein. The channels made in the material of the contact shoe elements and/or the pressure blocks extend obliquely downwards from the upper ends of said contact shoe elements and/or the pressure blocks near to the lower ends of the same. At least two of said oblique channels join together at their lower ends to form a continuous channel.
H05B 7/10 - Mountings, supports, terminals, or arrangements for feeding or guiding electrodes
H05B 7/12 - Arrangements for cooling, sealing, or protecting electrodes
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27D 11/08 - Heating by electric discharge, e.g. arc discharge
Provided is a pressure ring assembly for contact shoes in an electrode system of an electric arc furnace provided with at least one electrode column assembly. The electrode column assembly comprises a contact shoe ring formed of a plurality of contact shoe elements, a pressure ring formed of a plurality of pressure blocks, and a heat shield formed of a plurality of heat shield segments. An elongated groove is formed on both substantially vertical side edges of each pressure block, and an elongated lock bar is placed in the grooves of two adjacent pressure blocks to join said pressure blocks with each other. The form of the lock bar essentially matches to the form of the grooves of said two adjacent pressure blocks. Each lock bar is locked in place in the grooves by fastening bolts through holes in the pressure blocks.
H05B 7/10 - Mountings, supports, terminals, or arrangements for feeding or guiding electrodes
H05B 7/105 - Mountings, supports, or terminals with jaws comprising more than two jaws equally spaced along circumference, e.g. ring holders
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27D 11/08 - Heating by electric discharge, e.g. arc discharge
The invention describes a process for producing sulfuric acid by catalytic oxidation of SO2 to SO3 and subsequent absorption of the SO3 in sulfuric acid, wherein the SO3 is introduced into a first absorption stage (primary absorber) and at least partly absorbed there in concentrated sulfuric acid, wherein the SO3 not absorbed in the first absorption stage is supplied to a second absorption stage (secondary absorber) for the further absorption in concentrated sulfuric acid, and wherein the sulfuric acid is cooled after passing through the two absorption stages. The cooling of the sulfuric acid is effected in at least two heat exchangers connected in parallel, wherein one of the at least two heat exchangers is operated as partial evaporator and is cooled with boiler feed water/steam and the other one is cooled with cooling water and operated as pure acid cooler.
A process for purifying red mud including reduction of the red mud to reduced material, and traversing the reduced material with an oxygen-containing gas in the presence of a catalyst suitable for iron oxidation.
C01F 7/06 - Preparation of alkali metal aluminatesAluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
A method and a system for monitoring clamping pressure exerted by a clamping cylinder to an electrode in an electrode slipping device which comprises an upper annular holder ring and a lower annular holder ring, each comprising at least one clamping assembly including a clamping shoe and clamping cylinder arranged in co-operation so that the clamping shoe is forced into pressure contact with the electrode and released from pressure contact with the electrode by the action of the clamping cylinder. The measuring system comprises a force sensor (30) mounted in connection with a pressing piece (22) that transmits the force created by the clamping cylinder to the clamping shoe. The force sensor can be a strain gage (30) mounted in a cavity (25) provided in the pressing piece (22) or a load cell mounted between the pressing piece (22) and the clamping cylinder.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
H05B 7/107 - Mountings, supports, terminals, or arrangements for feeding or guiding electrodes specially adapted for self-baking electrodes
89.
Process and plant for separating heavy metals from phosphoric starting material
(iii) transferring the heated starting material of step (i) and the heated alkaline source of step (ii) to a second reactor (20), adding an elemental carbon source, heating to a temperature of 700 to 1.100° C. and withdrawing process gas and a product stream.
F23G 5/02 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment
F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals
B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique
C05B 17/00 - Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
C02F 9/00 - Multistage treatment of water, waste water or sewage
Industrial furnaces; fluidized bed combustion boilers and
burners; submerged combustion evaporation units; fluidized
bed units for reduction, calcining and roasting of ores and
residues; waste heat boilers; coolers for furnaces; cooling
elements for smelting and melting furnaces; apparatus for
cooling electric devices, namely, cooling elements for
electric equipment; apparatus and installations for water
purification.
91.
Apparatus for temperature measurements of a molten bath in a top submerged injection lance installation
A temperature measuring apparatus for a top submerged lancing installation, for use in measuring the temperature of a molten bath that includes a slag phase, during a pyro-metallurgical operation conducted in a reactor of the installation, includes a top submerged injecting top submerged injecting lance having at least an outer pipe and an inner pipe. A bore is defined by the inner pipe and an annular passage is defined in part by an inner surface of the outer pipe. The apparatus further includes a pyrometer device of which at least a sensor head part is mounted in relation to the top submerged injecting lance and operable both to receive infrared energy passing longitudinally within the lance from an outlet end of the lance. The sensor head part also is operable to focus the received infrared energy to enable generation of an output signal or display indicative of the temperature of a molten bath in which an outlet end portion of the lance is submerged and from which the infrared energy is received.
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
G01K 1/12 - Protective devices, e.g. casings for preventing damage due to heat overloading
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
The invention relates to a method and to an arrangement for feeding feed material from a bin (10) for feed material into a furnace space of a smelting furnace. The method comprises a first providing step for providing a feed material feeding arrangement (9) for feeding feed material from the bin (10) for feed material into the furnace space of the smelting furnace (1), and a feeding step for feeding feed material from the bin (10) for feed material into the furnace space of the smelting furnace. The method comprises additionally a second providing step for providing at least one sensor (11) for measuring flow of feed material at a position between the bin (10) for feed material and the furnace space of the smelting furnace (1), and a measuring step for measuring flow of feed material by means of said at least one sensor (11) at said position.
F27D 3/18 - Charging particulate material using a fluid carrier
G01F 1/704 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
BUNDESREPUBLIK DEUTSCHLAND, VERTRETEN DURCH DEN BUNDESMINISTER FUR WIRTSCHAFT UND ENERGIE, DIESER VERTRETEN DURCH DEN PRASIDENTEN DER BUNDESANSTALT FUR MATERIALFORSCHUNG UND -PRUFUNG (BAM) (Germany)
METSO METALS OY (Finland)
Inventor
Stemann, Jan
Adam, Christian
Hermann, Ludwig
Abstract
A method of calcination is suggested, comprising: providing a raw material comprising whitlockite Ca9(Mg,Fe2+)[PO3(OH)l(PO4)6], and/or iron phosphate FePO4, and/or aluminium phosphate A1PO4 and/or fluorapatite Ca5(PO4)3F; providing an alkaline- sulfuric compound as an additive; and calcining a mixture of the raw material with the additive to obtain a product, comprising a citrate soluble phosphate compound. Further, a citrate soluble phosphate compound obtained from a P-containing raw material, methods of use of the product and of the citrate soluble phosphate compound, e.g. as a fertilizer, and a method for obtaining a fertilizer are described.
The present invention provides a method of converting copper containing material to blister copper comprising: (a) providing copper containing material comprising copper sulfides and iron sulfides, whereby the copper containing material comprises at least 35 wt% copper of the total weight of the copper containing material; (b) reacting the copper containing material in a furnace with an oxygen containing gas, in the absence of flux, to effect oxidation of iron sulfide and copper sulfide, and controlling injection of the oxygen containing gas and the temperature so that the resulting converter slag is in a molten phase to obtain blister copper and converter slag.
A method is provided for producing matte such as copper or nickel matte or crude metal such as blister copper in a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. Also provided is a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. The suspension smelting furnace comprises a reaction shaft, a settler in communication with a lower end of the reaction shaft, and an uptake shaft. The settler extending in two opposite directions from a landing zone for a jet of oxidized suspension below the reaction shaft in the settler so that the settler comprises a first settler part on a first side of the landing zone and a second settler part on an opposite second side of the landing zone.
The invention relates to a method for smelting non-ferrous metal sulfides (13) in a suspension smelting furnace and to a suspension smelting furnace. The suspension smelting furnace comprises at least one injection means (18) for injecting at least one of fluid (19) and pulverous matter (20) into a settler (2) of the suspension smelting furnace from at least one of a first side wall structure (8) and a second side wall structure (9) of the settler (2) so that fluid (19) and/or pulverous matter (20) is injected into the settler (2) above a top surface (16) of a layer of melt (15) in the settler (2).
The invention relates to a method and to an arrangement for monitoring performance of a burner (1) of a suspension smelting furnace (2). The burner (1) is arranged at the top structure (3) of a reaction shaft (4) of the suspension smelting furnace (2). The burner (1) has a solids feeding channel (5) that has a solids outlet (6) opening up into the reaction shaft (4), and a reaction gas channel (12) comprising a reaction gas channel (12) a that has a reaction gas outlet (8) opening up into the reaction shaft (4). The arrangement comprises at least one imaging means (9) for producing images representing the cross- section of the reaction gas channel (12), and a processing means (10) for receiving images of the cross-section of the reaction gas channel (12) from the imaging means (9). The invention relates also to uses of the method and of the arrangement.
The invention relates to an arrangement for feeding fine-grained matter to a concentrate or matte burner (1) of a suspension smelting furnace (2). The arrangement includes a screw conveyor (3) comprising a tube means (4) having an inlet opening (6), an downward-facing outlet opening (7), and a helical screw (8) for moving fine-grained matter from the inlet opening (6) to the downward-facing outlet opening (7). The downward-facing outlet opening (7) is provided with a distribution means (10). The distribution means (10) has a free end (11) configured for feeding fine-grained matter into the downward-facing outlet opening (7). The helical screw (8) of the screw conveyor (3) extends from the direction of the inlet opening (6) at least partly over the downward-facing outlet opening (7).
B65G 37/00 - Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
99.
Method and apparatus for removing mercury from gas
A process for removing mercury from a process gas includes: (i) reacting mercury vapor present in the process gas with mercuric chloride dissolved in a scrubbing solution so as to form a suspension containing mercurous chloride; and (ii) settling the mercurous chloride out of the suspension. Chlorine is injected into the suspension before the settling step (ii) so as to form a reaction solution.
The invention relates to a method and to an arrangement for removing gaseous elementary mercury from a stream of gas and to an arrangement for carrying out the method. The arrangement comprises a first washing tower (2) for receiving a stream of gas, a second washing tower (6) for receiving a stream of once processed gas (5) from the first washing tower (2), and a third washing tower (9) for receiving a stream of twice processed gas (23) from the second washing tower (6) and configured for discharging a stream of cleaned gas (12).
