The present disclosure provides a method and an apparatus for modeling a digital model of a production system, wherein the method comprises: dividing a process flow of the production system according to the process to obtain a plurality of process units to be constructed and link units; determining the process relationship between the process units, and constructing a digital model architecture, a flow model and an environment model; and constructing a digital model corresponding to the system flow according to the digital model architecture, the flow model and the external environment. With the solution of the present disclosure, it is able to realize the modeling of the process flow for complex production systems and improve the process control efficiency of the production system.
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]
2.
MODELING METHOD, GENERATION METHOD, DEVICE AND MEDIUM OF A LINK UNIT
The invention relates to the technical field of process industry, and discloses a modeling method, a generating method, a device and a medium of a link unit. The modeling method comprises the following steps: build an inlet pipeline model; build an outlet pipeline model; build a functional equipment group model to obtain a digital model of a link unit, wherein the functional equipment group model comprises at least one functional equipment, and the types of functional equipment include at least one of the following: a buffer, a stirrer and a pressurizer, and whether each functional equipment is connected to a communication pipeline is controlled by a equipment regulator. The present disclosure can be used to integrate pipelines, buffers, stirrers, pressurizers, regulators, etc. between processes. The structured link unit greatly simplifies the building process of complex production system models.
G05B 17/02 - Systems involving the use of models or simulators of said systems electric
G06F 30/18 - Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
The invention provides a method and a device for controlling a production system based on a simulation model, belonging to the technical field of industrial process control. The main purpose of the invention is to improve the accuracy of identifying bottlenecks in the production system through a simulation model and to solve the problem that the existing operation rate obtained by simple estimation based on experience has a large error. The method comprises the following steps: connecting simulation modules based on the process flow of the production system to generate an initial simulation model, and optimizing the initial simulation model based on the maintenance parameters of the production system to obtain an optimized simulation model; Based on the optimized simulation model, identify the bottleneck of the production system or determine the operation rate of the production system.
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]
4.
LOW-CARBON IRONMAKING METHOD BASED ON SUSPENDED DIRECT REDUCTION-SMELTING SEPARATION IN SIDE-BLOWN FURNACE
The present application relates to the technical field of low-carbon ironmaking, and discloses a low-carbon ironmaking method based on suspended direct reduction-smelting separation in a side-blown furnace. The method comprises: S1, crushing iron ore and then grinding the crushed iron ore into iron ore powder; S2, placing the iron ore powder in a suspension reduction furnace, introducing a high-temperature reduction gas from the bottom of the suspension reduction furnace, directly reducing the iron ore powder in a suspended state, the temperature in the suspension reduction furnace being kept at 700-900°C, the reduction time period being 10-60 min, and obtaining reduced iron powder having a metallization rate greater than 90%; and S3, adding the reduced iron powder, a flux and a solid reducing agent into a side-blown furnace for smelting and final reduction, spraying oxygen-enriched air and fuel into the side-blown furnace to supply heat to a furnace hearth, the temperature of the furnace hearth being kept at 1,450-1,600°C, the smelting time period being 30-90 min, and obtaining finally reduced iron having a recovery rate greater than 98%. According to the present application, powdery iron ore is directly reduced in a suspended state, smelting is performed by means of smelting separation in a side-blown furnace, and final reduction and slag-iron separation are performed; thus, energy is synergistically utilized while molten iron preparation processes are simplified, thereby reducing production costs.
The present disclosure provides a method and system for diagnosing the combustion state of a garbage incinerator on the basis of image processing. A deep learning network Resnet 10 is used to identify working conditions of a garbage incinerator grate furnace, and a pixel-level image processing method is used to identify the grate blast state of the garbage incinerator grate furnace. By combining deep learning and pixel-level image processing methods, a plurality of incinerator working conditions can be effectively identified, and the defects of recognition accuracy being low and state being incomplete for a common deep learning model are overcome.
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
G06V 10/40 - Extraction of image or video features
6.
METHOD AND SYSTEM FOR EFFICIENT ORE CRUSHING, GRINDING AND SORTING
Disclosed are a method and system for efficient ore crushing, grinding and sorting. The method comprises: performing primary crushing on raw ore by using a primary crusher (S1), performing secondary crushing and screening by using a secondary crusher (S6), and returning oversized ore for secondary crushing; feeding small-sized ore to a high-pressure roller mill (S14) for high-pressure roller milling and screening, and returning oversized ore for high-pressure roller milling; performing, on small-sized ore subjected to high-pressure roller milling and screening, a coarse flotation operation by using a coarse flotation system to obtain coarse flotation concentrates and tailings; performing, on tailings resulting from the coarse flotation operation, ore grinding and classification treatments by using an ore grinding and classification system; and performing, on an overflow subjected to the ore grinding and classification treatments, a fine flotation operation by using a fine flotation system to obtain fine flotation concentrates and tailings. The method allows for a shorter crushing and grinding operation process and low energy consumption for a flotation plant, and avoids over-grinding due to direct regrinding by means of high-pressure roller milling, thereby improving the production index of the flotation plant.
A method and system for producing nickel matte from nickel-containing solid waste. The method comprises: combining a nickel-containing solid waste and a vulcanizing agent and drying; combining the dried material with a reducing agent and a flux agent and inputting into an oxygen-enriched side-blowing molten pool smelting furnace to perform a vulcanization reaction, and obtaining a mixed melt; a spray gun is arranged on a lateral portion of the oxygen-enriched side blowing molten pool smelting furnace, and an energy source and oxygen-enriched air/pure oxygen are blown into the furnace via the spray gun, stirring the mixed melt; and the mixed melt directly flows from a discharge port of the oxygen-enriched side blowing molten pool smelting furnace through a chute into an electrically heated settling furnace for sedimentation separation of nickel matte and furnace slag, and the nickel matte and furnace slag are outputted. Combining the oxygen-enriched side blowing molten pool smelting furnace and the electrically heated settling furnace allows the oxygen-enriched side blowing molten pool smelting furnace to perform smelting without performing separation; the spray gun performs vigorous stirring, allowing for thorough reaction; and the produced mixed melt flows directly into the electrically heated settling furnace, achieving calm separation of nickel matte and furnace slag, thereby ensuring that the process is executed efficiently, continuously, and stably.
A method for improving the quality of an intermediate product of a mixed nickel-cobalt hydroxide precipitate, and a laterite nickel ore high-pressure leaching hydrometallurgical treatment method. In the method for improving the quality of an intermediate product of a mixed nickel-cobalt hydroxide precipitate, the quality is improved by using a process combining high-temperature heat treatment with wet acid-leaching treatment. By means of the treatment method, the quality of the intermediate product of a mixed nickel-cobalt hydroxide precipitate can be improved, a nickel cobalt oxide product which has low impurities and can be directly sold is obtained, and the method has the advantages of a simple process and a low cost. The product, which has been subjected to the quality improvement, is subjected to laterite nickel ore high-pressure leaching hydrometallurgical treatment, thereby simplifying a downstream process, and reducing the transportation cost, equipment investment and a subsequent extraction pressure.
Provided is a high-temperature material conveying device. The high-temperature material conveying device comprises a material storage tank and a boom. The material storage tank comprises a tank body and a tank cover. The top of the tank body is provided with a feed inlet, and the tank cover can be moved up and down to open and close the feed inlet. A free end of the boom can hang and release the tank body. The tank cover is connected to the free end of the boom. When the boom hangs the tank body, the tank cover is moved down with respect to the tank body and connected to the tank body to close the feed inlet; and when the boom releases the tank body, the tank cover is moved up with respect to the tank body and separated from the tank body to open the feed inlet.
The present invention provides a method for continuously enriching nickel and cobalt from a low-concentration nickel-cobalt solution. The method comprises: step S1, adding an alkaline precipitant to a low-concentration nickel-cobalt solution for precipitation reaction, so as to obtain a crude nickel-cobalt intermediate wet material and a separation liquid; step S2, slurrying part of the crude nickel-cobalt intermediate wet material to obtain a slurried liquid; step S3, subjecting the slurried liquid to acid leaching to obtain a leachate and leached residues; and step S4, enriching and neutralizing the remaining crude nickel-cobalt intermediate wet material with at least part of the leachate to obtain an enriched nickel-cobalt solution, wherein the concentration of Ni2+ions in the low-concentration nickel-cobalt solution is 1-10 g/L, and the concentration of Co2+ ions is 0.2-10 g/L. According to the present application, the closed conveying of the materials is achieved; the oxidation of divalent cobalt in the materials is avoided; in addition, not only is the consumption of an acid and an alkali during the leaching and neutralization processes reduced, but the equipment scale of subsequent nickel-cobalt purification and extraction is also reduced; the processing process is simple; and the processing cost is low.
Disclosed in the present application are an autoclave acid-feeding system and control method, which relate to the technical field of smelting apparatuses and methods. The system comprises an autoclave, an acid-feeding pipeline and a ventilation pipeline, wherein one end of the acid-feeding pipeline is connected to the autoclave, and the other end thereof is connected to a pump, so that acid is pumped into the autoclave through the acid-feeding pipeline by means of the pump; the ventilation pipeline is connected to the acid-feeding pipeline, and is configured to introduce high-pressure gas in the ventilation pipeline into the acid-feeding pipeline when acid feeding is stopped, so as to prevent a material in the autoclave from flowing back; a second valve is provided on the ventilation pipeline and is used for controlling the communication state of the ventilation pipeline and the acid-feeding pipeline; and a first valve is provided on the acid-feeding pipeline, and is located between the pump and a connection point of the ventilation pipeline and the acid-feeding pipeline. According to the present application, the acid-feeding system is used for acid feeding, the high-pressure gas is introduced into the acid-feeding pipeline when acid feeding is stopped, so that the material in the autoclave is prevented from flowing back, being in contact with the valve and then corroding the valve; and in addition, introducing the high-pressure gas can achieve cooling, which further reduces the corrosion of the valve during acid feeding, thereby extending the service life of the valve and saving on production costs.
Provided is a comprehensive utilization method for columbite. The comprehensive utilization method for columbite comprises: step S1. carrying out reductive side-blown smelting on the columbite in a side-blown furnace to obtain molten iron, furnace slag, and a phosphorus-containing flue gas; and step S2. carrying out deep reduction on the furnace slag in an electric furnace to obtain ferroniobium, a slag rich in rare earths, and an electric furnace flue gas. In the present application, firstly subjecting the columbite to reductive side-blown smelting achieves the separation of phosphorus from iron, the resulting molten iron and furnace slag have relatively low phosphorus contents, thereby alleviating the problems caused by a high phosphorus content in raw materials during the subsequent niobium and rare earth extraction process; and reductive side-blown smelting and deep reduction are both low-cost smelting means, such that the cost of metal recovery from columbite is effectively controlled. In addition, the afterheat of the side-blown furnace can be recycled, the produced electric energy can be used for deep reduction in a subsequent electric furnace, and the dependence on external electric energy resources is reduced. In the deep reduction stage, an iron-containing material is added as an additionally added iron source for deep reduction to form molten ferrocolumbium.
The present invention belongs to the technical field of molybdenum smelting, and disclosed is a molybdenum oxide roasting system comprising a first rotary kiln, a first heat exchanger, a hot air distributor, a second rotary kiln, a second heat exchanger, a drying bed, and a first feeder. One end of the first rotary kiln is connected to the second heat exchanger, and the other end of the first rotary kiln is connected to the second rotary kiln; the first heat exchanger is disposed on the first rotary kiln; one end of the hot air distributor is connected to the first heat exchanger, and the other end of the hot air distributor is separately connected to the first rotary kiln and the second rotary kiln; one end of the second heat exchanger is connected to the first rotary kiln, and the other end of the second heat exchanger is connected to the drying bed; and the first feeder is disposed between the drying bed and the first rotary kiln.
Provided are a lithium extraction system and a lithium extraction method for salt lake brine. The lithium extraction system comprises: a continuous magnesium removal apparatus, a continuous lithium precipitation apparatus, and a continuous washing apparatus, wherein the continuous magnesium removal apparatus is used for carrying out continuous magnesium removal treatment on lithium-rich brine by using a sodium hydroxide solution to obtain a magnesium-removed liquid and magnesium slag; the continuous lithium precipitation apparatus is connected to the continuous magnesium removal apparatus, and is used for carrying out continuous lithium precipitation treatment on the magnesium-removed liquid to obtain crude lithium carbonate and a lithium precipitation mother liquor; and the continuous washing apparatus is connected to the continuous lithium precipitation apparatus, and is used for continuously washing the crude lithium carbonate to obtain a lithium carbonate solid. By means of the present application, the lithium extraction system for salt lake brine is creatively used, and such an integrated lithium extraction system can realize continuous production, so as to significantly reduce labor intensity and reduce the product difference caused by subjective distinguishing of manual operation and control, thereby improving the quality stability of the product, reducing the product cost, and improving the batch qualification of the lithium carbonate product.
A polycrystalline silicon crushing, sorting and packaging system. The system comprises a crushing unit (1), a sieving unit (21), an automatic bagging unit (2), an automatic unpacking, sealing and packing unit (3), and an automatic loading and stacking unit (4), and performs crushing, sieving, bagging, loading, stacking and packing operations, etc. on polycrystalline silicon, such that the degree of automation of the polycrystalline silicon crushing, sorting and packaging system is improved, thereby also improving the production efficiency of the polycrystalline silicon crushing, sorting and packaging system, reducing the labor intensity of operators and labor costs, and solving the problem whereby too many operators need to be provided for a labor-intensive production activity.
B02C 23/08 - Separating or sorting of material, associated with crushing or disintegrating
B02C 23/00 - Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in groups or not specially adapted to apparatus covered by one only of groups
B65B 7/20 - Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by folding-down preformed flaps
A method and apparatus for preparing a composite, in which the angle between the apparatus base and the apparatus body is adjusted by the elevator device, the solid raw material is loaded into the reactor by the solid feeding device, the main reaction gas, the auxiliary gas and the carrier gas are introduced from the front gas intake unit into the main reaction zone at a preset ratio, followed by the active material deposited on solid particles, the post-processing reaction gas is introduced from the middle gas intake unit to the post-processing reaction zone to form a functional layer on the active material, the prepared composite powder is separated and collected from the gas-solid mixture in the collection device. The exhaust gas is released from the exhaust manifold into an exhaust gas treatment system after minority powder filtered by the filter.
B01J 8/08 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with moving particles
B01J 8/10 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles
Provided are a smelting method and device for iron-based ores. The method comprises: directly adding iron-based ores, a first flux and a second reducing agent into a furnace, blowing a first oxygen-enriched gas and a first fuel to a jet smelting zone by using an upper-layer spray gun, and blowing a second oxygen-enriched gas, a second fuel and a first reducing agent to the jet smelting zone by using a lower-layer spray gun, so as to perform smelting to obtain a melt containing smelting slag and metal; or adding the iron-based ores and the first flux into the furnace, blowing the first oxygen-enriched gas and the first fuel to the jet smelting zone by using a first spray gun so as to perform smelting to obtain a melt; blowing the second oxygen-enriched gas, the second fuel and the first reducing agent to a jet smelting initial reduction zone by using a second spray gun, adding the second reducing agent, introducing the melt material to perform jet smelting initial reduction to obtain a melt containing smelting slag and metal; and introducing the melt into an electrothermal reduction zone for reduction and separation to obtain the metal and the smelting slag. In the present method, full recovery of iron from the iron-based ores is achieved, and iron and vanadium are efficiently separated from titanium.
A silicon tetrachloride cold hydrogenation system is provided. The system comprises a silicon tetrachloride evaporator, a gas mixture superheater, a gas-gas heat exchanger, a gas mixture heater and a hydrogenation reactor. The gas-gas heat exchanger has a first syngas inlet and a first syngas outlet. The hydrogenation reactor comprises a main body which has a reaction chamber, a silicon power inlet, a fourth gas mixture inlet and a second syngas outlet, the second syngas outlet being connected to the first syngas inlet. A gas distributor is arranged in the reaction chamber, is positioned between the fourth gas mixture inlet and the silicon powder inlet, and has multiple gas distribution holes. Multiple nozzles are arranged in the multiple gas distribution holes in a one-to-one manner, the outlet of each nozzle facing upwards. The system has advantages that energy consumption is low, operation cost is low, reaction conversion rate is high, the outlet of the hydrogenation reactor cannot be easily blocked, and the like.
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
20.
ELECTRIC FURNACE OXYGEN-BLOWING SMELTING PROCESS AND SYSTEM
Provided are an electric furnace oxygen-blowing smelting process and system. The electric furnace oxygen-blowing smelting process comprises: in an electric furnace, carrying out oxygen-blowing smelting on an output of a copper concentrate smelting section, the output being copper matte, or a mixed melt of copper matte and smelting slag; and introducing an oxygen-containing gas into the electric furnace during the oxygen-blowing smelting, the oxygen volume content of the oxygen-containing gas being 20%-90%. According to the electric furnace oxygen-blowing smelting process of the present application, after the output of the smelting process in the previous section is introduced into the electric furnace, the function of the electric furnace is changed by blowing oxygen to the electric furnace, and the low-grade copper matte in the output is subjected to a blowing reaction to a certain degree in the electric furnace and then settled, thus improving the grade of the copper matte produced by the electric furnace, such that the obtained copper matte can meet the requirements of continuous blowing, so that a continuous blowing treatment can be achieved; in the addition, the electric furnace oxygen-blowing smelting process generates heat, which can supply the heat required by the electric furnace, so that additional energy consumption of the electric furnace required by electric heating is reduced.
The present disclosure provides a melt electrospinning device. The melt electrospinning device includes a melting unit, a spinning unit, an electrostatic generating unit, a collection unit, and a sealed cavity. A lining of the melting unit is made of a material having a melting point greater than 500° C. The spinning unit is connected to the bottom of the melting unit and includes a spinneret made from a conductive material having a melting point greater than 500° C. The melt electrospinning process is performed in the sealed cavity. The present disclosure further provides a melt electrospinning method.
D01F 9/08 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments of inorganic material
A side-blown smelting furnace. The side-blown smelting furnace comprises: a furnace body (10), the furnace body (10) comprising a furnace top (110) and a furnace cavity (120); a partition wall (20), the partition wall (20) being arranged between a first position and a second position in manner of being able to move upwards and downwards, at least a part of the partition wall (20) when located at the first position being located inside the furnace cavity (120) so as to divide the furnace cavity (120) into a first area (121) and a second area (122), and at least a part of the partition wall (20) when located at the second position being located outside the furnace cavity (120); a driving device (60), wherein the driving device (60) can be connected to the partition wall (20) so as to drive the partition wall (20) to move from the first position to the second position; and a lower flue (30), the lower flue (30) comprising a first flue (310) and a second flue (320), the first flue (310) being in communication with the first area (121), and the second flue (320) being in communication with the second area (122). The side-blown smelting furnace facilitates the maintenance of the partition wall, such that the time required for the maintenance of the partition wall is short.
Disclosed in the present application is an online prediction method for parameters in a copper converting process based on an oxygen bottom blowing furnace. The method comprises: establishing a bottom blowing converting furnace mechanism model according to a raw material input condition and on the basis of a material balance model, an energy balance model, and a multiphase balance model; establishing a bottom blowing converting furnace data driving model according to actual production data and on the basis of a crude copper grade neural network model, a slag ferrosilicon ratio neural network model, and a slag temperature neural network model between a target parameter and an input parameter; integrating the mechanism model and the data driving model by using an intelligent coordinator to obtain a bottom blowing converting furnace mixing model relating to a crude copper grade prediction value, a slag ferrosilicon ratio prediction value, and a slag temperature prediction value; and outputting final prediction values of the crude copper grade, the slag ferrosilicon ratio, and the slag temperature in a copper bottom blowing converting process by using the mixing model. The prediction method can effectively solve the problem that the existing prediction models and methods are poor in adaptability and not satisfactory in actual operation effect, and can significantly improve the accuracy of a prediction result.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
Disclosed in the present application is an autoclave, the autoclave comprising: an autoclave body, which is provided with an inner cavity and is made of a titanium-steel explosive composite plate; compartment plates, which are disposed in the inner cavity and divide the inner cavity into a plurality of compartments that are arranged at intervals in the longitudinal direction of the autoclave body, overflow holes used for placing adjacent compartments in communication being formed at the lower edges of the compartment plates, and the upper edges of the compartment plates being separated from a top wall surface of the inner cavity so as to form overflow channels; and a plurality of stirring devices, which are each provided with a stirring blade. The stirring devices are provided on the autoclave body and correspond to the compartments, the stirring blades extend downwards into the corresponding compartments in the vertical direction, the wall surface of each compartment is provided with a stirring area opposite to the corresponding stirring blade, and titanium alloy wear-resistant plates are provided in the stirring areas and on the wall surfaces of the compartments. The autoclave of the present application has improved wear resistance, has short maintenance time and has a long service life.
Provided is a polycrystalline silicon reduction furnace and furnace start method thereof, said polycrystalline silicon reduction furnace comprising: a bottom tray (1), an air inlet pipe (11) and an air outlet pipe (12) are provided on the bottom tray; a high-resistance silicon core (2), disposed on the bottom tray; a reduction furnace barrel (3), suitable for coveringly arranging on the bottom tray, a cavity being defined in the reduction furnace barrel; a gas heater (4), a gas inlet (41) and a gas outlet (42) being formed thereon; a material system heat exchanger (5), a material system inlet (51) and material system outlet (52) being formed thereon; a gas pipeline (6), configured to be in communication with one of the gas outlet and the material system outlet; gas heated by the gas heater is suitable for entering the cavity by way of the gas pipeline and the gas inlet pipe so as to heat the high-resistance silicon core. The furnace start method comprises: injecting gas for a first predetermined time into the reduction furnace at a first predetermined flow rate so as to displace the air in the reduction furnace; turning on the gas heater and heating the gas to a predetermined temperature and passing the heated gas into the reduction furnace at a second flow rate for a second predetermined time; turning off the gas heater and stopping air intake into the reduction furnace, and maintaining the pressure in the reduction furnace at a predetermined pressure; the high-resistance silicon core treated with heated gas is subjected to breakdown treatment. The polycrystalline silicon reduction furnace heats the gas by means of the gas heater, and the hot gas preheats the high-resistance silicon core in the reduction furnace, such that the entire system is tightly sealed, ensuring gas purity, and is simple to operate and safe and reliable.
C30B 28/14 - Production of homogeneous polycrystalline material with defined structure directly from the gas state by chemical reaction of reactive gases
Provided are a system and method for cooling a polycrystalline silicon reduction furnace (100). The polycrystalline silicon cooling system comprises: a bell-shaped cover (110) and a base plate (120), wherein the bell-shaped cover has a first cooling water inlet (111) and a bell-shaped cover high-temperature water outlet (112), the base plate has a second cooling water inlet (121) and a base plate high-temperature water outlet (122), and the base plate high-temperature water outlet is connected to the first cooling water inlet and/or the second cooling water inlet; and a heat exchange device (200) having a bell-shaped cover high-temperature water inlet (201) and a heat-exchanged cooling water outlet (202), wherein the bell-shaped cover high-temperature water inlet is connected to the bell-shaped cover high-temperature water outlet, and the heat-exchanged cooling water outlet is connected to the first cooling water inlet and/or the second cooling water inlet. Further disclosed is a method for using the system. The system not only simplifies the pipeline of an existing system for cooling a polycrystalline silicon reduction furnace, but also realizes efficient and graded recovery and utilization of heat of bell-shaped cover high-temperature water and base plate high-temperature water; in addition, the system reduces the long-distance circulation usage amount of cooling water for the polycrystalline silicon reduction furnace, and realizes safe and stable operation of the polycrystalline silicon reduction furnace.
C01B 33/035 - Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process
27.
SMELTING METHOD AND SMELTING DEVICE FOR PROCESSING IRON-BASED POLYMETALLIC MINERAL MATERIALS USING SHORT PROCESS
Disclosed is a smelting method and smelting device for processing an iron-based polymetallic mineral using a short process. The smelting system used in the smelting method includes a bath smelting device. A dividing wall (30) is provided in the bath of the bath smelting device. The dividing wall divides the bath into a melting zone (10) and an electrothermal reduction zone (20), and the bottom of the melting zone (10) is connected to the electrothermal reduction zone (20). The smelting method includes transporting the iron-based polymetallic minerals, fuel, flux and oxygen-enriched air to the melting zone, and performing melting and partial reduction to obtain molten liquid; transporting the molten liquid and a reducing agent to the electrothermal reduction zone and performing reduction smelting treatment to obtain vanadium-containing molten iron and titanium slag.
F27B 3/04 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-hearth typeHearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-chamber typeCombinations of hearth-type furnaces
A multi-stage dense phase semi-dry desulphurisation reactor, comprising an inlet flue (1), an outlet flue (2), a plurality of U-shaped reactors (3), a plurality of desulphurisation agent adding assemblies (4), and a plurality of ash discharging valves (5), the plurality of U-shaped reactors (3) each being provided with a U-shaped flue gas channel (31), each U-shaped flue gas channel (31) being provided with an air inlet (311) and an air outlet (312), the plurality of U-shaped reactors (3) being arranged closely adjacently in sequence between the inlet flue (1) and the outlet flue (2), such that the U-shaped flue gas channels (31) are serially connected in sequence between the inlet flue (1) and the outlet flue (2); the plurality of desulphurisation agent adding assemblies (4) are respectively correspondingly arranged on the plurality of U-shaped reactors (3) and are correspondingly adjacent to the air inlet (311) of the plurality of U-shaped flue gas channels (31) in order to add desulphurisation agent into each U-shaped flue gas channel (31); and the plurality of ash discharging valves (5) are respectively correspondingly arranged on the plurality of U-shaped reactors (3) and are respectively correspondingly positioned at the bottommost position at the bottom of the plurality of U-shaped reactors (3). The present application achieves the implementation of multi-stage desulphurisation reactions in the same reactor, and has a compact structural layout and small floor occupation area.
A method for recovering copper from a phosphoric acid extractant-containing solution. The method comprises: mixing a phosphoric acid extractant-containing solution with solvent oil to obtain an oil-water mixture; performing oil-water separation on the oil-water mixture to obtain a water phase and an oil phase; and performing oxime extraction on the water phase to obtain metallic copper. A phosphoric acid extractant-containing solution is mixed with solvent oil, and oil-water separation is then performed, so as to reduce the content of a phosphoric acid extractant in a water-phase solution; an oxime extraction process is then performed, so that the oxime extraction process can be normally operated, an organic phase can be recycled, and the quality of product copper can also be improved. According to the method, existing operations such as air flotation, ultrasound, resin or fiber agglomeration, and activated carbon adsorption are replaced with simple mixing and oil-water separation means, thereby simplifying the operation, device and process, and significantly saving recovery and investment operation costs.
The present application discloses a copper electrodeposition device. The copper electrodeposition device comprises a first main beam, a second main beam, a first conductive plate provided on the first main beam, a second conductive plate provided on the second main beam, a plurality of anode plates and a plurality of cathode plates connected to the first main beam and the second main beam, and a plurality of frames respectively located between anode plates and cathode plates adjacent to each other, the plurality of anode plates and the plurality of cathode plates being arranged alternately at intervals, two side faces of the anode plates and the cathode plates being respectively in contact with the first conductive plate and the second conductive plate; the frames are provided with liquid inlet nozzles and liquid outlet nozzles; the plurality of frames are respectively and correspondingly provided between every adjacent anode plate and cathode plate, every adjacent anode plate and cathode plate are pressed tightly together with the frame therebetween, and a closed space is formed between said cathode plate and anode plate. Adjacent anode plates and cathode plates are provided away from each other to facilitate the removal of cathode plates. The copper electrodeposition device in the present application has small electrode spacing and a high degree of parallelism between anode plates and cathode plates.
Provided are a melt electrospinning device and method. The device comprises: a melting unit (4), with a lining thereof being made of a material with a melting point exceeding 500ºC; a spinneret unit (5), connected to the bottom of the melting unit and comprising a spinneret formed by processing a conductive material with a melting point exceeding 500ºC; an electrostatic generating unit (6); a collection unit (7); and a sealed cavity (1). The process of melt electrostatic spinning is performed in the sealed cavity.
The present disclosure discloses a method and device for removing iron in an iron-containing solution in hydrometallurgy. This method comprises the steps of: adding an iron-containing solution in hydrometallurgy into a reactor through a first homogenizing distributor, controlling concentration of the ferric iron in the reactor below 1 g/L, controlling pH of the solution in the reactor to be 2.5˜4, the temperature to be 65˜100° C., and the reaction duration to be 1˜3 hours, performing solid-liquid separation for the solution after reaction, and removing the iron in the iron-containing solution in hydrometallurgy in the form of goethite.
222 in the precipitate being obtained by filtration, and subjecting the residual cobalt in the filtrate to a replacement reaction with a manganese powder, such that the total recovery rate of Co reaches 99%. The process has a short flow, is simple and easy to perform, low in cost and high in yield, suitable for mass production applications, and is environmentally-friendly and economic.
A system for testing a rheological behavior of a slurry comprises a first stirring reactor, a second stirring reactor, a material supply pipe, a driving device, and a pressure detection member. The driving device has a first state and a second state. In the first state, the driving device drives a slurry in the first stirring reactor to be outputted to the second stirring reactor. In the second state, the driving device drives the slurry in the second stirring reactor to be outputted to the first stirring reactor. The pressure detection member is used to measure a pressure level in the material supply pipe.
G01N 11/08 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
A bottom-blowing refining furnace and use thereof. The bottom-blowing refining furnace comprises a rotary furnace (100) and a bottom-blowing redox lance (200). The rotary furnace (100) comprises a rotary furnace housing (110), a furnace opening (120), a copper inlet (130) and a copper outlet (140). A furnace space is defined in the rotary furnace housing, the furnace opening (120) is provided at an upper part of the middle section of the rotary furnace housing (110), the copper inlet (130) is provided on the rotary furnace housing (110), and the copper outlet (140) is provided on a side wall of an end of the rotary furnace housing (110). The bottom-blowing redox lance (200) is provided at the bottom of the rotary furnace housing (110) and protrudes into the furnace space, and the diameter of the bottom-blowing redox lance (200) is 38-75 cm.
A system for recycling surplus heat in mine return air, comprising an air guide apparatus (1), an air heat exchanger assembly (2), a water heat exchanger assembly (3), a hot water transmission and distribution apparatus (4), and a hot water usage apparatus (5). One end of an air duct of the air guide apparatus connects to a mine return air shaft (6), and another end of the air duct connects to the air heat exchanger assembly. The hot water transmission and distribution apparatus comprises a hot water supply pipe (41) and a hot water return pipe (42), one end of the hot water supply pipe and of the hot water return pipe connecting to the water heat exchanger assembly, and another end connecting to the hot water usage apparatus. A refrigerant pipe (21) is used to connect the air heat exchanger assembly to the water heat exchanger assembly, the air heat exchanger assembly being configured so as to absorb heat in return air, and the water heat exchanger assembly transmitting the heat absorbed by the air heat exchanger assembly into circulating water in the hot water transmission and distribution apparatus. The present system features a simple structure and improves the efficiency of recycling return air heat in mines.
Disclosed is a method for preparing submicron scandium oxide, comprising: subjecting a mixed solution of a first carboxylic acid extractant and an organic solvent to a first saponification reaction with ammonia water to obtain a first water-oil emulsion; using the first water-oil emulsion to extract a scandium ion-containing solution to obtain a scandium-supported organic phase; subjecting a mixed solution of a second carboxylic acid extractant and an organic solvent to a second saponification reaction with an aqueous sodium hydroxide solution to obtain a second water-oil emulsion, wherein the aqueous sodium hydroxide solution is added in excess relative to the mixed solution of a second carboxylic acid extractant and an organic solvent; subjecting the scandium-supported organic phase to a precipitation reaction in the second water-oil emulsion to obtain a scandium hydroxide precipitate; and calcining the scandium hydroxide precipitate to obtain the submicron scandium oxide. The dimensions and morphology of scandium hydroxide microparticles are effectively controlled in the present method so as to obtain the submicron scandium oxide.
A method for enriching scandium, comprising the following steps: S1, extracting scandium from a scandium-containing inorganic acid solution using an organic extractant or an organic solvent solution containing an organic extractant to obtain an organic phase containing scandium; and S2, back-extracting and precipitating the organic phase containing scandium using a precipitant solution, followed by separation to obtain a precipitate containing scandium, a precipitation mother liquor, and a no-load organic phase. The precipitant solution plays a role in back-extraction and precipitation at the same time, thereby shortening the operation process and reducing the consumption of raw materials.
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
Disclosed is a method for preparing ultramicro scandium oxide, comprising: subjecting a solution containing scandium ions to an extraction treatment using a carboxylic acid extraction agent-organic solvent mixed solution to obtain a scandium-loaded organic phase, wherein the carboxylic acid extraction agent in the carboxylic acid extraction agent-organic solvent mixed solution is added excessively relative to the scandium ions in the solution containing scandium ions; mixing the scandium-loaded organic phase and an aqueous ammonia and subjecting same to a saponification reaction so as to form a water-oil emulsion; heating and drying the water-oil emulsion and subjecting same to a thermal hydrolysis reaction so as to obtain a scandium precipitate; and calcining the scandium precipitate to obtain the ultramicro scandium oxide. In the method, the extraction with the carboxylic acid extraction agent, the control for the shape and size of the scandium precipitate by a microreactor formed at the water-oil interface, combined with the acid-base regulation ability of the aqueous ammonia and the coating ability of the carboxylic acid extraction agent during a thermal hydrolysis reaction are used to effectively prepare a scandium oxide product which is ultramicro-scaled in size. The preparation method also has the characteristics of being simple and efficient, and is more conducive to industrial production.
A centrifugal back-extracting apparatus and a scandium back-extracting method. The centrifugal back-extracting apparatus comprises: an outer shell (10), the outer shell (10) comprising a raw material inlet (11); an inner shell (20), the inner shell (20) being provided inside the outer shell (10), a gap being formed between the outer shell (10) and the inner shell (20), a material channel being provided at the bottom of the outer shell (10) and the bottom of the inner shell (20) to enable the material in the gap to enter the inner shell (20), a finished product channel (21) being provided at the bottom of the inner shell (20), the finished product channel (21) extending through the outer shell (10) to the exterior of the outer shell (10), a first discharge channel and a second discharge channel being provided at the upper part of the inner shell (20), and the first discharge channel being closer to one side of the inner shell than the second discharge channel; and a rotary shaft (30), the rotary shaft (30) being mounted on the outer shell (10) and located inside the inner shell (20), so that the rotary shaft (30) generates, when rotating, a centrifugal force to drive material to be separated and discharged respectively from the first discharge channel and the second discharge channel.
Provided is a preparation method for scandium fluoride, comprising: performing extraction using an organic extracting agent and a scandium-containing solution to obtain a scandium-containing organic phase; and subjecting the scandium-containing organic phase to a precipitation reaction with a fluorine-containing mixed solution to obtain scandium fluoride. Scandium element in a scandium-containing solution is extracted primarily by means of an extraction process to obtain a scandium-containing organic phase, and then the scandium-containing organic phase is subjected to a precipitation reaction or back-extraction with a fluorine-containing mixed solution so as to obtain a scandium fluoride product. The method has the advantages of low cost, short process, high yield of scandium fluoride, etc.
A rare earth precipitation device and a rare earth precipitation method. The rare earth precipitation device comprises: a precipitation container (10), having a body and an accommodating cavity enclosed by the body; a feeder (20), supplying rare earth material liquid and a precipitating agent to the accommodating cavity of the precipitation container (10); a stirrer (30) having a stirring paddle, the stirring paddle being provided in the accommodating cavity; and a sealing cover (50), the sealing cover (50) being detachably provided at the top of the body to seal the accommodating cavity. The provision of the sealing cover (50) increases the pressure in a reaction space and enhances the forward progression of the precipitation reaction, facilitating the formation of crystallites and reducing the growth speed of precipitated crystals, making the particle size of the precipitated samples relatively small, the crystallization rate low, and the precipitated samples contain less impurities; second, the closed operation can improve the operating environment, and the precipitating agent and the rare earth material liquid participate in the reaction at a relatively stable ratio, improving the use efficiency of the precipitating agent; and finally, the closed operation can increase the stirring intensity, the pH distribution of the liquid phase being uniform, facilitating the growth of grain size of the crystal more uniformly.
A copper smelting device, comprising a furnace body (100), a feeding port (101), a smoke outlet (106), a slag outlet (102), a copper matte port (103), and a primary air vent (104). A copper matte layer (112), a slag layer (113), and a gas layer (114) are sequentially arranged in the furnace body (100) from bottom to top. The feeding port (101) is arranged on a top wall of the furnace body (100). The smoke outlet (106) is arranged on the top wall of the furnace body (100). The slag outlet (102) is arranged at one end of the furnace body (100). The copper matte port (103) is arranged at an end of the furnace body (100) opposite to the slag outlet (102), and the copper matte port (103) is located at the bottom of the copper matte layer (112). The primary air vent (104) is located on a side wall of the furnace body corresponding to the slag layer (113), and is used to blow oxygen-enriched air into the slag layer (113). The dimensions in the width-wise direction of the inner wall corresponding to the slag layer (113) are greater than 2.5 m and less than or equal to 4.5 m so as to expand the scale of single furnace processing of concentrates, thereby improving labor efficiency and reducing operating costs.
Provided is a device for continuously decomposing a rare earth concentrate ore. The device includes a body, a bidirectional propeller and a driving assembly. The body has a material inlet, two liquid inlets and two exhaust gas outlets disposed at the top of the body, two material outlets disposed at the bottom of the body and a heat preservation chamber provided inside a side wall of the body. The bidirectional propeller is provided in the body and extends along a length direction of the body. The driving assembly is connected to the rotating shaft.
Provided are a method and a system for processing a rare earth concentrate ore. The method comprises (1) mixing the rare earth concentrate ore and concentrated sulfuric acid, thereby obtaining a mixed slurry and a first fluorine-containing gas; (2) mixing the mixed slurry and an initiator liquid for acidolysis, thereby obtaining a clinker and a second fluorine-containing gas; (3) subjecting the clinker to leaching with water, thereby obtaining a leached slurry; (4) subjecting the leached slurry to a solid-liquid separation, thereby obtaining a filtrate and a leached slag, and recycling the leached slag to step (2) for acidolysis again.
A flotation system, comprising: a stirring tank (100), the top of the stirring tank being at least partially closed, and the stirring tank having a first ventilation port (110); a flotation machine (200), the top of the flotation machine being at least partially closed, and the flotation machine being connected to the stirring tank by means of a sealed pipeline and having a second ventilation port (210); an ore pulp pump pool (300), the top of the ore pulp pump pool being at least partially closed, and the ore pulp pump pool being connected to the flotation machine by means of a sealed pipeline and having a third ventilation port (310); and an air draft channel (400), comprising an air draft main pipe (410) and air draft branch pipes (420), wherein the air draft main pipe is connected to the first ventilation port, the second ventilation port and the third ventilation port via the air draft branch pipes.
Provided is a grinding system for slag. The system comprises: a coarse crushing unit (100), the coarse crushing unit comprising a slag bin (110), a first feeder (120), and a coarse crusher (130) connected in sequence, the slag bin being provided with a grid screen (11); a secondary fine crushing unit (200), the secondary fine crushing unit comprising a secondary crushing surge bin (210), a second feeder (220), a secondary crusher (230), a vibrating sieve (240), a storage bin (250), a third feeder (260), and a fine crusher (270) connected in sequence, the vibrating sieve being disposed at the top of the storage bin, a surge bin (251) and a fine-ore bin (252) being defined in the storage bin, the surge bin being connected to the oversize outlet of the vibrating sieve, the fine-ore bin being connected to the undersize outlet of the vibrating sieve, and the secondary crushing surge bin being connected to the coarse crusher and the secondary crusher; and an ore grinding unit (300), the ore grinding unit comprising a fourth feeder (310), a ball mill (320), a pump sump (330), a slurry pump (340), and a cyclone (350) connected in sequence, the fourth feeders being connected to the fin-ore bin. Also provided is a grinding method for slag.
A copper slag depletion device and method. The device comprises a copper slag depletion treatment furnace (10) and a wire feeding device (20), wherein the copper slag depletion treatment furnace (10) uses electrothermal or plasma heat as a heat source; the copper slag depletion treatment furnace (10) is provided with a copper slag inlet, a wire feeding hole and a matte opening; the copper slag inlet is used to introduce copper slag (a), and the matte opening is used to discharge copper matte (c) obtained by a reduction and depletion treatment; the wire feeding device (20) is used for feeding a carbon powder wire (b) into the copper slag depletion furnace (10) by means of the wire feeding hole so as to perform a reduction and depletion treatment on the copper slag (a). The copper slag depletion device is capable of improving the reduction and depletion efficiency of copper slag, and has a short process, low costs, may simultaneously recover heavy metals such as lead and zinc in the slag, and other effects.
A comprehensive processing method and comprehensive processing system for copper-containing sludge and circuit boards, the comprehensive processing method comprising: mixing and granulating copper-containing sludge and waste-activated carbon to obtain copper-containing sludge particles; performing side blowing smelting on the copper-containing sludge particles and a circuit board. The waste-activated carbon is used as a reducing agent and a partial combustion agent, which is mixed and granulated with the copper-containing sludge and then side blowing smelted with the circuit board; in addition, a waste mineral oil is used as a supplementary fuel, thereby further reducing the energy consumption costs of side blowing smelting; during the process of side blowing smelting, organic matter of the circuit board burns to generate heat, and the organic matter may be used as a fuel for side blowing smelting, thereby completing the separation of copper and other impurities from the copper-containing sludge and the circuit board, fully utilizing the heat energy of the organic matter in the circuit board, and further reducing the energy consumption costs of side blowing smelting.
A circuit board processing method and processing system. The processing method comprises: carrying out pyrolysis on a circuit board to obtain pyrolysis flue gas and a solid residue; and using the pyrolysis flue gas as a part of fuel in a heavy metal sludge side-blown smelting process, and performing side-blown smelting on the heavy metal sludge. The processing system comprises: a pyrolysis unit (10), provided with a pyrolysis flue gas outlet and a solid residue outlet; a heavy metal sludge supply unit (20); and a side-blown smelting unit (30), provided with an inlet for a material to be smelted and a side-blown inlet, the pyrolysis flue gas outlet being connected to the side-blown inlet, and the inlet for material to be smelted being connected to the heavy metal sludge supply unit (20). Since the pyrolysis flue gas generated by pyrolysis of the circuit board has a relatively high temperature and comprises many organic substances, the gas thus has a high calorific value. When the circuit board pyrolysis process is combined with the side-blown smelting of a heavy metal sludge, the pyrolysis flue gas is used as a part of the fuel for the side-blown smelting of the heavy metal sludge so as to make full use of the heat values of said part, which also avoids environmental pollution caused by the discharge of organic matter and reduces the cost of the side-blown smelting of heavy metal sludge. The side-blown smelting process may reduce the pollution degree of smelting flue gas by means of sufficient combustion under oxygen-rich conditions.
C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals
F23G 5/16 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including supplementary heating including secondary combustion in a separate combustion chamber
F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
51.
METHOD AND APPARATUS FOR COMPREHENSIVE RECYCLING OF COPPER SMELTING SLAG
A method and apparatus for the comprehensive recycling of copper smelting slag. The method comprises the following steps: introducing copper smelting slag to a cavity by means of a first inlet; and in the heat supply state of an electrode and in the presence of a reducing agent, recycling valuable metal in the copper smelting slag. The apparatus used in the method comprises a CR furnace and a reducing agent supply device. The reducing agent supply device is used for supplying a reducing agent to the CR furnace. The CR furnace comprises a housing and an electrode; a cavity is formed in the housing; the housing is provided with a first inlet; the electrode passes through the housing and extends to the cavity for heat supply; and the volume of the part of the electrode extending into the cavity accounts for 1.5-5.5% of the total capacity of the cavity. The process can more comprehensively recycle the valuable metal in the copper smelting slag, is simple, can remove the hidden danger of secondary pollution of slag flotation tailings, and thus is suitable for industrial large-scale application.
A pressure vessel (100), comprising: a tank (1), the tank (1) having defined therein an accommodation chamber (131); an agitation apparatus (2), the agitation apparatus (2) being disposed in the accommodation chamber (131); a hydraulic driving apparatus, the hydraulic driving apparatus comprising a hydraulic motor (3) and a hydraulic pump, the hydraulic motor (3) being disposed in the tank (1), an output shaft (31) of the hydraulic motor being connected to the agitation apparatus (2) so as to drive the agitation apparatus (2) to rotate, the hydraulic pump being disposed at an outer side of the tank (1), the hydraulic motor (3) and the hydraulic pump being connected by means of a connecting pipe assembly, and the connecting pipe assembly and the tank (1) being connected by means of a non-dynamic seal.
A method and apparatus for removing iron from a hydrometallurgical iron-containing solution. The method comprises the following steps: adding a hydrometallurgical iron-containing solution to a reactor by means of a first homogenizing distributing device (11); controlling the concentration of ferric iron in the reactor to be less than 1 g/L, and controlling the pH of the solution in the reactor to be equal to 2.5-4, the temperature to be 65-100°C, and the reaction time to be 1-3 hours; and performing solid-liquid separation on the solution after reaction, and removing iron from the hydrometallurgical iron-containing solution in the form of goethite.
The present invention discloses a method and device for removing iron in an iron-containing solution in hydrometallurgy. This method comprises the steps of: adding an iron-containing solution in hydrometallurgy into a reactor through a first homogenizing distributor, controlling concentration of the ferric iron in the reactor below 1g/L, controlling pH of the solution in the reactor to be 2.5~4, the temperature to be 65~100°C, and the reaction duration to be 1~3 hours, performing solid-liquid separation for the solution after reaction, and removing the iron in the iron- containing solution in hydrometallurgy in the form of goethite. In the technical solution of the present invention, adding the iron-containing solution in hydrometallurgy into the reactor through a homogenizing distributor can directly convert the ferric iron in the solution to goethite precipitation, without a need to conduct ferric iron- ferrous iron-ferric iron conversion by adding lots of reducing agents and oxidizers as it does in the prior art, and without a need to return the seed crystal, which saves operation costs.
A system for testing a rheological behavior of a slurry (1) comprises a first stirring reactor (10), a second stirring reactor (20), a material supply pipe (30), a driving device (40), and a pressure detection member (60). The driving device (40) has a first state and a second state. In the first state, the driving device drives a slurry in the first stirring reactor (10) to be outputted to the second stirring reactor (20). In the second state, the driving device drives the slurry in the second stirring reactor (20) to be outputted to the first stirring reactor (10). The pressure detection member (60) is used to measure a pressure level in the material supply pipe (40).
A system for testing a rheological behavior of a slurry (1) comprises a first stirring reactor (10), a second stirring reactor (20), a material supply pipe (30), a driving device (40), and a pressure detection member (60). The driving device (40) has a first state and a second state. In the first state, the driving device drives a slurry in the first stirring reactor (10) to be outputted to the second stirring reactor (20). In the second state, the driving device drives the slurry in the second stirring reactor (20) to be outputted to the first stirring reactor (10). The pressure detection member (60) is used to measure a pressure level in the material supply pipe (40).
Provided is an apparatus for continuous decomposition of rare earth concentrate. The apparatus comprises: a body, which has a feed port, two liquid feeding ports, and two tail gas outlets at the top and two discharge ports at the bottom, a heat preservation chamber being provided in a side wall of the body, and the heat preservation chamber being provided with a heat preservation liquid inlet and a heat preservation liquid outlet; a bidirectional propeller, which is provided in the body, extends along the length direction of the body, and comprises a rotating shaft, a first spiral blade, and a second spiral blade, the first spiral blade being disposed on a first shaft section of the rotating shaft and the second spiral blade being disposed on a second shaft section of the rotating shaft, and the spiral direction of the first spiral blade being opposite to that of the second spiral blade, such that the first spiral blade discharges materials toward a first end of the rotating shaft and the second spiral blade discharges materials toward a second end of the rotating shaft; and a driving assembly, which is connected to the rotating shaft.
A method and system for treatment of rare earth concentrate. The method comprises: (1) mixing rare earth concentrate with concentrated sulfuric acid to obtain a mixed slurry and a first fluorine-containing gas; (2) mixing the mixed slurry with an initiator liquid for acidolysis treatment to obtain clinker and a second fluorine-containing gas; (3) mixing the clinker with water and performing leaching treatment to obtain a leach slurry; and (4) performing solid-liquid separation on the leach slurry to obtain a filtrate and leach residues, and for the leach residues, returning to step (2) to perform acidolysis treatment.
A method and system for short-process copper smelting. Copper smelting equipment employed in the method comprise a smelting furnace (10), a copper forging furnace (20), a CR furnace (30), a first flow groove, and a second flow groove. The smelting furnace (10) is provided with a copper sulfide outlet and a smelting slag outlet. The copper forging furnace (20) is provided with a copper sulfide inlet, the copper sulfide inlet being in communication with the copper sulfide outlet via the first flow groove. The CR furnace (30) is provided with a smelting slag inlet, the smelting slag inlet being in communication with the smelting slag outlet via the second flow groove. A copper concentrate is smelted in the smelting furnace (10) to produce a first copper sulfide and a smelting slag; the first copper sulfide undergoes a copper forging reaction in the copper forging furnace (20) to generate an anode copper and a copper forging slag; the smelting slag undergoes reduction, fuming, and settlement in the CR furnace (30) to comprehensively reclaim valuable metals in the smelting slag and to produce a harmless slag.
An anode copper production method and device. The production method comprises the following steps: conveying copper matte to a copper production furnace (20), and injecting oxygen-enriched air into the copper production furnace (20) to perform oxidation treatment on the copper matte so that the copper matte undergoes a copper production reaction to generate anode copper, the volume percentage of oxygen in the oxygen-enriched air ranging from 30 to 80%.
A copper smelting slag comprehensive recovery method and device. Said method uses a CR furnace to perform reductive fuming and settling on the smelting slag to comprehensively recover valuable metals in the smelting slag and produce harmless slag. The CR furnace (30) comprises a cavity, the cavity comprising a reductive fuming cavity (31) and a settling cavity (32) in communication with each other. Recovery of valuable metals in the smelting slag comprises the steps of: performing a reductive fuming treatment on the smelting slag in the reductive fuming cavity (31) to obtain valuable metals-containing smoke dust and reduced slag, and performing a settling treatment on the reduced slag in the settling cavity (32) to obtain copper matte and harmless slag; or performing a settling treatment on the smelting slag in the settling cavity (32) to obtain copper matte and settled slag, and performing a reductive fuming treatment on the settled slag in the reductive fuming cavity (31), so as to obtain valuable metals-containing smoke dust and harmless slag.
F27B 7/04 - Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with longitudinal divisions
F27B 3/04 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-hearth typeHearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-chamber typeCombinations of hearth-type furnaces
62.
METHOD FOR PREPARING POSITIVE ELECTRODE TERNARY PRECURSOR POWDER
A method for preparing positive electrode ternary precursor powder. The positive electrode ternary precursor powder contains three elements, i.e., nickel, cobalt and manganese. The method comprises: carrying out acid dissolution on nickel cobalt hydroxide so as to obtain a solution after acid solving; carrying out impurity removal treatment on the solution after acid solving so as to obtain a solution after impurity removal; adjusting the proportions of nickel, cobalt, and manganese in the solution after impurity removal so as to obtain a former solution; and using the former solution to prepare the positive electrode ternary precursor powder.
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
63.
Lance and multi-fluid lance device equipped with the same
The present disclosure discloses a lance, including a lance head having: a first tube; a second tube, in which the first tube is fitted over the second one; and a through hole tube, in which the through-hole tube has a plurality of axial through holes, a second channel is defined by the first tube, the second tube and the through hole tube, and a first channel is defined by an inner cavity of the second tube and the plurality of axial through holes; an air inlet tube in fluid communication with the second channel; and an air inlet seat connecting with the second tube and having an air inlet channel which is in fluid communication with the first channel. The lance according to the present disclosure can spray uniform gas and can reduce energy consumption. The present disclosure also discloses a multi-fluid lance device equipped with the lance.
The present disclosure discloses a refractory protection layer for a metallurgical furnace, which includes a insulating layer, a permanent layer built with a refractory brick and arranged on the insulating layer, a working layer built with a refractory brick and arranged on the permanent layer, and a first anti-permeation layer made of ramming mass and arranged on the working layer. The refractory protection layer for the metallurgical furnace described in the present disclosure embodiments has both high temperature resistance and good permeability resistance.
Disclosed are a system and method for preparing a titanium slag. The system comprises: a material-mixing device (100), the material-mixing device (100) being provided with an iron-containing titanium ore inlet (101), a reducing agent inlet (102) and a mixed material outlet (103); a plurality of material bins (200), the material bins (200) being connected to the mixed material outlet (103); a rectangular electric furnace (300), the rectangular electric furnace (300) comprising: a rectangular electric furnace body (31), a plurality of electrodes (32), a first material-feeding area (33), a second material-feeding area (34), a third material-feeding area (35), a molten iron outlet (301), a titanium slag outlet (302) and a coal gas outlet (303); a residual heat boiler (400), the residual heat boiler (400) being connected to the coal gas outlet (303); and a bag collector (500), the bag collector (500) being connected to the residual heat boiler (400). The method comprises: supplying an iron-containing titanium ore and a reducing agent to a material-mixing device (100) for mixing so as to obtain mixed materials; storing the mixed materials in a plurality of material bins (200), and the material bins (200) respectively supplying same to a first material-feeding area (33), a second material-feeding area (34) and a third material-feeding area (35) of a rectangular electric furnace and carrying out melting processing so as to obtain molten iron, titanium slag and coal gas; supplying the coal gas to a residual heat boiler (400) for preheating and recycling so as to obtain cooled coal gas; and supplying the cooled coal gas to the bag collector (500) for dust collection so as to obtain purified gas.
A movement denial detection device for use in an electric railroad switch, comprising: multiple data modules (11, 12, and 13) arranged on different tracks at either extremity of an electric railroad switch; an acquisition module (20) arranged on an electric locomotive, the acquisition module (20) being used for acquiring corresponding data information when the electric locomotive passes over each data module (11, 12, and 13) of the multiple data modules (11, 12, and 13); and a controller (30), the controller (30) being connected to the acquisition module (20), and the controller (30) being used for determining whether a movement denial occurs at the electric railroad switch when the data information acquired by the acquisition module (20) is different from instruction information. The device can determine very accurately whether a movement denial occurs in the electric railroad switch and take a corresponding measure when the movement denial occurs in the electric railroad switch, thus effectively preventing the occurrence of the movement denial in the electric railroad switch from causing the electric locomotive to travel in a wrong direction and thereby resulting in the occurrence of a severe accident.
B61L 3/12 - Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control controlling electrically using magnetic or electrostatic inductionDevices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control controlling electrically using radio waves
B61L 5/06 - Electric devices for operating points or scotch-blocks
B61L 23/00 - Control, warning or like safety means along the route or between vehicles or trains
67.
LOW-VOLTAGE PROTECTION DEVICE FOR USE IN STORAGE BATTERY
Disclosed in the present invention is a low-voltage protection device for use in a storage battery, comprising: a primary power supply circuit, the primary power supply circuit being connected with the storage battery and a control system, respectively; an activation circuit, for controlling the primary power supply circuit to be connected, such that the storage battery supplies power to the control system; a low-voltage canceling circuit, for controlling, when the voltage of the storage battery is lower than a working voltage of the control system, the activation circuit to be disconnected such that the primary power supply circuit may be disconnected; and a recovery circuit, for controlling the activation circuit to be connected as triggered by a user. When the primary power supply circuit is disconnected, the activation circuit may be used to control the primary power supply circuit to be connected only when triggered by a user, such that the storage battery supplies power to the control system, thereby effectively preventing a low-voltage oscillation scenario caused by the storage battery directly supplying power to the control system, and preventing damages from occurring in the control system.
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
68.
METHOD FOR TREATING IRON-REMOVED AND ALUMINUM-REMOVED LIQUID
A method for treating iron-removed and aluminum-removed liquid. The iron-removed and aluminum-removed liquid in the method comprises nickel chloride and cobalt chloride. The method comprises: (1) mixing iron-removed and aluminum-removed liquid and a first calcium hydroxide solution to obtain nickel and cobalt deposited pulp; (2) performing thickening treatment on the nickel and cobalt deposited pulp to obtain nickel and cobalt deposited overflow and nickel and cobalt deposited thick pulp, and performing filter pressing on one part of the nickel and cobalt deposited thick pulp to obtain a nickel cobalt hydroxide filter cake; and (3) mixing the other part of the nickel and cobalt deposited thick pulp and second calcium hydroxide to obtain mixed pulp, and returning to the step (1) to mix the mixed pulp, which substitutes the first calcium hydroxide solution, and the iron-removed and aluminum-removed liquid.
A lance including: a central pipe having a wear-resistant ceramic layer coated on an inner wall thereof; a central casing pipe having a casing pipe groove in an outer wall thereof, in which the central casing pipe is fitted over the central pipe; an intermediate pipe fitted over the central casing pipe, in which a combustion-supporting gas chamber is formed between a front part of the central pipe and the intermediate pipe, and an intermediate pipe groove is formed in an outer wall of the rear part; and an outer casing pipe fitted over the intermediate pipe, in which a cooling medium chamber is formed between a front part of the intermediate pipe and the outer casing pipe, and a cooling medium injection channel is defined by an inner wall of the outer casing pipe and the intermediate pipe groove.
An adjustment and calibration method and system for electric motor overload protection. The adjustment and calibration method comprises the following steps: collecting a working current of an electric motor in real time (S110); determining whether a current difference value between the working current of the electric motor at each time and the corresponding initial protection current satisfies a pre-set requirement (S120); and if it is determined that the current difference value does not satisfy the pre-set requirement, adjusting same to be an initial protection current satisfying the pre-set requirement, so as to set the initial protection current (S130). The adjustment and calibration method realizes automatic adjustment and calibration of a protection current, and can thus perform accurate overload protection on an electric motor according to the adjusted and calibrated protection current, thereby reducing the situations where electric motor damage occurs caused by an overload, and improving the working efficiency.
H02H 7/085 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
71.
LOW-VOLTAGE POWER DISTRIBUTION SYSTEM AND MULTI-FUNCTION INSTRUMENT FOR THE LOW-VOLTAGE POWER DISTRIBUTION SYSTEM
A low-voltage power distribution system and a multi-function instrument for the low-voltage power distribution system. The multi-function instrument comprises: an instrument body (100); a current collector (10) arranged in the instrument body (100), wherein the current collector (10) is connected to a low-voltage power distribution loop, so as to collect a current of the low-voltage power distribution loop in real time; a register (20) arranged in the instrument body (100), wherein the register (20) is connected to the current collector (10), so as to record the maximum current collected by the current collector (10) in a current scanning period; and a communication unit (30) arranged in the instrument body (100), wherein the communication unit (30) is connected to the register (20), so as to send, after establishing a communication connection with an upper-layer control system (200), the maximum current collected by the current collector (10) in the current scanning period to the upper-layer control system (200). The multi-function instrument can ensure that an upper-layer control system (200) collects, in each scanning period, the maximum current appearing in a low-voltage power distribution loop, so as to facilitate the upper-layer control system (200) in issuing a corresponding control command, thereby ensuring the secure and reliable operation of the power distribution system.
An electric motor control system, and a method for cancelling thermal relay monitoring in a power supply loop of an electric motor. The method comprises the following steps: collecting a current of a power supply loop (100) in real time by means of a multifunctional meter (300) (S101); the multifunctional meter determining the current of the power supply loop, and the multifunctional meter outputting an overload protection signal when the current of the power supply loop is greater than or equal to a pre-set current threshold (S102); and according to the overload protection signal, controlling a three-phase contact (102) to be disconnected, so that the power supply loop is disconnected (S103). The method cancels the monitoring of a thermal relay in an electric motor control system, thereby simplifying the system, reducing device investments, and at the same time, improving the reliability of the system.
H02H 7/085 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
An airborne control box (100) comprises a box body (10), a circuit board (20), a heat dissipater (90), a data collection board (91), an insulation and shock absorption member (92), multiple controllers (30), a power supply (40), a switch (50), and multiple data transmission devices (60). A mounting chamber provided with an open upper end is defined in the box body (10). The circuit board (20) is mounted in the mounting chamber and is adjacent to one side wall of the box body (10). The heat dissipater (90) is disposed on the circuit board (20). The data collection board (91) is disposed on the heat dissipater (90). The insulation and shock absorption member (92) is disposed between the heat dissipater (90) and the data collection board (91) to insulate the heat dissipater (90) from the data collection board (91). The multiple controllers (30) are disposed in the mounting chamber in a manner of extending in a vertical direction, and is adjacent to the other side wall of the box body (10). The power supply (40) is disposed in parallel to the multiple controllers (30) in a manner of extending in the vertical direction. The switch (50) is disposed in the mounting chamber. The multiple data transmission devices (60) are disposed in the mounting chamber in a manner of extending in the vertical direction.
BEIJING HANGJI' AN ELECTRICAL TECHNOLOGY CO., LTD. (China)
DONGGUASHAN COPPER MINE, TONGLING NONFERROUS METALS GROUP CO., LTD. (China)
Inventor
Bai, Guanghui
Gu, Longfei
Chen, Chen
Hu, Jiandong
Ma, Wenli
Li, Shuo
Abstract
An on-board control cabinet (100) comprises: a cabinet body (10); a circuit board (20); multiple controllers (30); a power source (40); an exchanger (50); and multiple data transmission devices (60). An installation compartment having an open top is defined in the cabinet body (10). The circuit board (20) is installed in the installation compartment and positioned close to one side wall of the cabinet body (10). The multiple controllers (30) extending vertically are disposed inside the installation compartment and positioned close to another side wall of the cabinet body (10). The power source (40) extends vertically and is arranged next to the multiple controllers (30). The exchanger (50) is disposed inside the installation compartment. The multiple data transmission devices (60) extend vertically and are disposed inside the installation compartment.
A reduction smelting system (10) and reduction smelting method for vanadium-titanium magnetite ore or ilmenite. The reduction smelting system (10) for vanadium-titanium magnetite ore or ilmenite comprises: a rotary kiln (101) used for pre-reducing magnetically separated vanadium-titanium magnetite ore or ilmenite, the rotary kiln (101) being provided with a first feeding port, a calcine outlet, and a burner nozzle mounting port; a burner nozzle used for jetting flames into a kiln cavity of the rotary kiln, the burner nozzle being disposed at the burner nozzle mounting port; an electric furnace (102), the electric furnace (102) being provided with a second feeding port, an iron discharging port, a slag discharging port, and a smoke outlet; and a hot material conveying apparatus (103), one end of the hot material conveying apparatus (103) being connected to the calcine outlet, and the other end of the hot material conveying apparatus (103) being connected to second feeding port.
A side-submerged combustion smelting apparatus (1) for spraying oxygen-enriched air and pulverized coal, comprising: a smelting furnace (100); a pulverized coal delivery pipe (200) for delivering pulverized coal; an air delivery pipe (300) for delivering oxygen-enriched air; a plurality of coal spray assemblies (400) arranged at intervals on two opposite walls of the smelting furnace (100), each coal spray assembly (400) comprising a pulverized coal spay gun (410) and an air spray gun (420) that are adjacent to each other and disposed as a pair, each coal spray assembly (400) at least partially extending into the smelting furnace (100).
A spray gun (1) for a side-submerged combustion smelting apparatus. The spray gun (1) comprises: an inner spray tube (100) provided with a medium inlet (130), a medium spray port (140), and a medium clean port (150); an outer spray tube (200) defining a cooling cavity (210) together with the inner spray tube (100) and provided with a cooling air inlet (220) and a cooling air spray port (230) that are in communication with the cooling cavity (210); and a sealing member (300) capable of moving between a close position for sealing the medium clean port (150) and an open position for opening the medium clean port (150).
A metallurgical furnace (1), comprising: a furnace body (100) having a hearth (121) provided therein; a plurality of spray guns (200) disposed on the top of the furnace body (100) and extending into the hearth (121) from top to bottom.
Provided are a system and method for treating a cadmium-containing solution. The system comprises: a cadmium-containing solution storage apparatus (100); a first conveying pipe (200) connected to the cadmium-containing solution storage apparatus (100); a feed pump (300) connected to the first conveying pipe (200); a second conveying pipe (400) connected to the feed pump (300); a pipe reactor (500) connected to the second conveying pipe (400); and a zinc powder supplying device (600) connected to at least one of the following: the first conveying pipe (200), second conveying pipe (400), and the pipe reactor (500).
A solution purification system and method. The system comprises: a solution storage apparatus (100); a first conveying pipe (200) connected to the solution storage apparatus (100); a feed pump 6 (300) connected to the first conveying pipe (200); a second conveying pipe (400) connected to the feed pump (300); a pipe reactor (500) connected to the second conveying pipe (400); and a zinc powder supplying device (600) connected to at least one of the following: the first conveying pipe (200), second conveying pipe (400), and the pipe reactor (500).
Provided are a system and method for treating a copper-containing solution. The system comprises: a copper-containing solution storage apparatus (100); a first conveying pipe (200) connected to the copper-containing solution storage apparatus (100); a feed pump (300) connected to the first conveying pipe (200); a second conveying pipe (400) connected to the feed pump (300); a pipe reactor (500) connected to the second conveying pipe (400); and a zinc powder supplying device (600) connected to at least one of the following: the first conveying pipe (200), second conveying pipe (400), and the pipe reactor (500).
Disclosed is a fuming furnace with a lead collecting and discharging function, the fuming furnace comprising a furnace body; the furnace body is provided with a hearth therein and a tuyere thereon; the bottom of the hearth forms a molten pool; the furnace body is further provided with a slag discharging outlet and a lead discharging outlet thereon; the furnace body comprises a furnace bottom water jacket and a hearth water jacket; the furnace bottom water jacket is provided with a refractory brick layer at the inner wall thereof; the refractory brick layer is provided with a lead collecting and discharging channel therein for collecting and discharging lead; the lead collecting and discharging channel is in communication with the lead discharging outlet, and the lead collecting and discharging channel is in communication with the molten pool via joints between the refractory bricks forming the refractory brick layer.
A blowtorch (100) for use in lateral blowing of a submerged burning molten pool metallurgical furnace and the metallurgical furnace (1000) having the blowtorch. The blowtorch (100) comprises: an outer blow pipe (10), the outer blow pipe (10) being provided therein with an oxidizing gas inlet (11), an oxidizing gas outlet (12), and an insertion port (13); an insertion self-locking element (20) having a self-locking and closing function, the insertion self-locking element (20) being mounted at the insertion port (13) of the outer blow pipe; an inner blow pipe (30), the inner blow pipe (30) being provided with a medium inlet (31), a medium nozzle (32), and a medium clearing opening (33), the inner blow pipe (30) being detachably inserted on the insertion self-locking element (20), one extremity of the medium nozzle (32) on the inner blow pipe (30) being inserted into the outer blow pipe (10) via the insertion port (13), and the insertion self-locking element (20) self-locking and closing to block the insertion port (13) when the inner blow pipe (30) is detached from the insertion self-locking element (20); and a blocking element (40), the blocking element (40) being mounted on the inner blow pipe (30) to open or close the medium clearing opening (33). The blowtorch not only facilitates clearing of pulverized coal clogging the inner blow pipe (30), thus allowing the inner blow pipe (30) to be unclogged in a timely manner, but also obviates the need to lower the liquid level of a molten pool when the inner blow pipe is detached for maintenance and effectively ensures normal operation of the metallurgical furnace, thus increasing yield.
A cooling system, comprising: a coolant supplying unit (10); a cooling unit (20) for cooling an object to be cooled, being connected to the coolant supplying unit (10) by means of a coolant inlet pipe (21); a coolant recovery unit (30), comprising a coolant recovery pipe network (31) and a coolant recovery tank (32), the coolant recovery pipe network (31) comprising a coolant recovery branch pipe (311) and a suction pipe (312) that are connected by means of the same port, the port of the coolant recovery branch pipe (311) that is away from the suction pipe (312) being connected to the cooling unit (20), the port of the suction pipe (312) that is away from the coolant recovery branch pipe (311) being connected to the coolant recovery tank (32), the horizontal plane of the coolant supplying unit (10) being higher than the horizontal plane of the coolant recovery tank (32); and a jet pump group (40), comprising an injector (41) and a jet pump (42), the injector (41) being connected to the jet pump (42), and the injector (41) being provided on and in connection with the suction pipe (312). The jet pump group is turned on to enable the fluid in the coolant recovery tank (32) to be discharged to the outside, such that the pressure in the coolant recovery tank (32) becomes negative, therefore coolant spillover will not, or will hardly, occur even if the cooling unit (20) has a leakage point, helping to reduce potential safety hazards and lower resistance to fluid flow.
A cooling system comprises a refrigerant supply unit (10), a cooling unit (20) used for cooling a to-be-cooled object, a liquid seal groove (30) and a refrigerant recycling unit (40). The cooling unit (20) communicates with the refrigerant supply unit (10) through a refrigerant input pipe (21). The refrigerant recycling unit (40) comprises a refrigerant recycling pipe set (41) and a vacuum pump set (42). The refrigerant recycling pipe set (41) comprises a refrigerant recycling branch pipe (411), a vacuum pipe (412) and a siphon (413), all of which communicate with one another through the same port. The vacuum pump set (42) is connected with the vacuum pipe (412). The refrigerant recycling branch pipe (411) communicates with the cooling unit (20). The siphon (413) communicates with the liquid seal groove (30). The horizontal plane where the refrigerant supply unit (10) is located is higher than the horizontal plane where the liquid seal groove (30) is located. Due to the fact that a certain height difference exists between the refrigerant supply unit (10) and the liquid seal groove (30), cooling water in the refrigerant supply unit (10) can overcome resistance of a pipeline and enters the liquid seal groove (30) by itself. Due to the fact that the whole cooling system is in negative pressure, when the cooling unit is fractured, a refrigerant cannot overflow or hardly overflows, and accordingly production accidents caused by refrigerant overflow can be better reduced.
Disclosed are a method and apparatus for controlling power of an electric furnace. The method comprises: obtaining an operating frequency of a power grid; comparing the operating frequency of the power grid with a rated frequency to obtain a frequency deviation value of the power grid; obtaining a power deviation value of an electric furnace according to the frequency deviation value of the power grid; and raising or lowering electrodes according to the power deviation value of the electric furnace to adjust the power of the electric furnace. The present invention solves the technical problem in the related art of power system failure due to that load fluctuation goes beyond the tolerance of an isolated power grid since the impact of load changes on the power grid are not considered during power adjustment of an electric furnace.
A high-temperature material conveying tank (100), including a tank body(10) provided with a material cavity (11) inside, a feed inlet (12) at an upper part and a discharge outlet (13) at a lower part, wherein the tank body (10) includes a cylindrical section (14), a first taper section (15) and a first connection section (16); the first connection section (16) is arranged at one end of the cylindrical section (14) and arranged between the one end of the cylindrical section (14) and the first taper section (15); the first connection section (16) is integrally formed with the first taper section (15), and buttwelded with the cylindrical section (14). The high-temperature material conveying tank (100) has an advantage of good stress intensity, thereby prevents a welded joint from cracking and deforming.
Disclosed is a scattering and selecting device (100) for a smoke dust block. The device comprises a housing (10), wherein a scattering cavity (11) is provided in the housing (10), and the housing (10) has a feed inlet (12), a feed outlet (13), an air inlet (14) and an air suction outlet (15); a rotary shaft (20), wherein the rotary shaft (20) can be rotatably mounted on the housing (10) and has a lower end extending into the scattering cavity (11) and an upper end located outside the scattering cavity (11); a plurality of scattering members (30) mounted on the rotary shaft (20) and located in the scattering cavity (11); and a driver (40) connected to the rotary shaft (20) so as to drive the rotary shaft (20) to rotate.
B02C 13/16 - Disintegrating by mills having rotary beater elements with vertical rotor shaft, e.g. combined with sifting devices with beaters hinged to the rotor
89.
FUMING FURNACE WITH LEAD COLLECTING AND DISCHARGING FUNCTION
Disclosed is a fuming furnace (10) with a lead collecting and discharging function, the fuming furnace (10) comprising a furnace body (101); the furnace body (101) is provided with a hearth (1011) therein and a tuyere (1012) thereon; the bottom of the hearth (1011) forms a molten pool (10111); the furnace body (101) is further provided with a slag discharging outlet (1013) and a lead discharging outlet (1018) thereon; the furnace body (101) comprises a furnace bottom water jacket (1014) and a hearth water jacket (1015); the furnace bottom water jacket (1014) is provided with a fire-resistant brick layer (1016) at the inner wall thereof; the fire-resistant brick layer (1016) is provided with a lead collecting and discharging channel (1017) therein for collecting and discharging lead; the lead collecting and discharging channel (1017) is in communication with the lead discharging outlet (1018), and the lead collecting and discharging channel (1017) is in communication with the molten pool (10111) via interstices between the fire-resistant bricks forming the fire-resistant brick layer (1016).
Disclosed is a continuous side-blast tin smelting technique implemented using a continuous side-blast tin smelting apparatus (10). The continuous side-blast tin smelting technique comprises the following steps: adding feed material containing tin to a smelting area (10111); using a smelting area side-blast spray gun (103) to spray from a side of the smelting area (10111) a first oxygen-containing gas and a first fuel toward the part of a melting pool that is in the smelting area (10111) so as to smelt the feed material containing tin and produce first crude tin and rich tin slag; adding a reducing agent to a reduction area (10112); using a reduction area side-blast spray gun (104) to spray from a side of the reduction area (10112) a second oxygen-containing gas and a second fuel toward the part of the melting pool that is in the reduction area (10112) so as to reduce the rich tin slag that has flown from the smelting area (10111) to the reduction area (10112) and produce second crude tin and slag, the second crude tin flowing from the reduction area (10112) to the smelting area (10111); discharging the first crude tin and the second crude tin from a tin discharge outlet (10114); intermittently discharging slag from a slag discharge outlet (10119).
Disclosed is a continuous side-blast tin smelting apparatus (10). The continuous side-blast tin smelting apparatus (10) comprises: a reaction furnace (101); the reaction furnace (101) comprises a furnace chamber (1011); the lower part of the furnace chamber (1011) is provided with a melting pool for housing slag and tin liquid; provided inside the furnace chamber (1011) is a separating wall (102), and the separating wall (102) extends into the melting pool such that the furnace chamber (1011) is divided into a smelting area (10111) and a reduction area (10112); the melting pool in the smelting area (10111) and the melting pool in the reduction area (10112) are in communication; provided on the wall of the smelting area (10111) are a smelting area material feed inlet (10113) and a tin discharge outlet (10114); provided on the wall of the reduction area (10112) are a reducing agent feed inlet (10115) and a slag discharge outlet (10119); the ceiling of the furnace chamber (1011) is provided with smoke outlets that connect to the smelting area (10111) and the reduction area (10112); a smelting area side-blast spray gun (103), the smelting area side-blast spray gun (103) being provided on the side wall of the smelting area (10111); a reduction area side-blast spray gun (104), the reduction area side-blast spray gun (104) being provided on the side wall of the reduction area (10112).
Disclosed is a side-blast tin smelting apparatus (10). The side-blast tin smelting apparatus (10) comprises: a reaction furnace (101); the reaction furnace (101) comprises a furnace chamber (1011); provided on the wall of the furnace chamber (1011) are a material feed inlet (1012), a slag discharge outlet (1013), and a tin discharge outlet (1014). The ceiling of the furnace chamber (1011) is provided with smoke outlets (1016) for discharging flue gas; a side-blast spray gun (102), the side blast spray gun (102) being provided on the side wall of the furnace chamber (1011) to blast oxygen-containing gas and fuel into the furnace chamber (1011).
Disclosed are a nickel hydroxide and preparation method thereof, the method comprising: (a) contacting first nickel hydroxide slurry and sodium hydroxide to obtain alkaline slurry; (b) contacting the alkaline slurry and a solution containing nickel sulfate to obtain immersion nickel slurry; (c) returning at least a part of the immersion nickel slurry to step (a) as the first nickel hydroxide slurry so as to repeat steps (a) and (b) at least once; and (d) separating nickel hydroxide from the remainder of the immersion nickel slurry.
Provided are a method for processing a laterite-nickel ore and a method for recycling scandium. The method for recycling scandium comprises: performing scandium extraction processing on scandium containing lixivium by using an organic extractant, to obtain a scandium containing organic phase; performing reextraction on the scandium containing organic phase by using a monobasic acid solution, to obtain a strip liquor; mixing the strip liquor with a precipitator, to obtain a scandium containing precipitation; and performing calcination on the scandium containing precipitation, to obtain scandium oxide.
A copper matte bottom-blowing refining process and copper matte bottom-blowing refining furnace (1), the copper matte bottom-blowing refining process comprising the steps of: adding a copper matte and a flux to the bottom-blowing refining furnace; using a bottom-blowing spray gun (20) to continuously blow oxygen-containing gas from the bottom of the refining furnace toward the melt in the furnace; and discharging crude copper and slag respectively.
Disclosed is a continuous lead smelting device, which includes a reaction furnace (1) and a separating wall (4) provided therein for dividing furnace chamber of the reaction furnace(l) into oxidation region (Y) and reduction region (H). A communicating channel (41) at the foot of the separating wall (4) communicates the oxidation region (Y) and the reduction region (H). A side-blowing spraying gun(2) of the oxidation region (H) is attached to the side wall of oxidation region (Y) of reaction furnace (1) to blow oxygen into smelting tank of oxidation region (Y) from one side. A side-blowing spraying gun (3) of the reduction region (H) is attached to the side wall of the reduction region (H) of the reaction furnace (1) to blow fuel and oxygen into the smelting tank of the reduction region (H). As the oxidation and reduction process is conducted in a single reaction furnace by using the continuous lead smelting device, the lead contained in the slag is reduced and the sealing performance of the continuous lead smelting device can be stably maintained. As the lead smelting device fully uses the thermal enthalpy of the slag, the energy consumption can be reduced. Also disclosed is a continuous lead smelting method.
A furnace for lead-slag reduction includes a furnace body (1), bases (4) for supporting the furnace body (1), lances (6) for injecting pulverized coal and electrodes (7). The furnace body (1) includes a hearth, a feed inlet (11), a lead-liquid outlet (12), a slag tap (13), an emptying outlet (18), electrode insertion holes (17) set on top of the furnace body (1), a smoke outlet (14) and lance insertion holes (16) set on the bottom of the furnace body (1). The lances (6) can be inserted into the furnace through the lance insertion holes (16) to inject pulverized coal into the furnace. The electrodes (7) can be inserted into the furnace through the electrode insertion holes (17) to heat materials in the furnace. Furthermore, a process for lead-slag reduction is also described.
A reduction-oxidation furnace (200) for making phosphorus by thermal process comprises a furnace body (50) and a spray gun (21, 26). The furnace body (50) comprises a slag outlet (23, 24), a flue gas outlet (22) and a molten mass inlet (27) through which molten phosphorus ores are added into the furnace body (50). One end of the spray gun (21, 26) is inserted into the furnace body (50). The reduction-oxidation furnace (200) for making phosphorus by thermal process can reduce the impurities in the flue gas with P2O5, which facilitates the extraction of the P2O5 with high purity and low cost.
A device making phosphorus by thermal process comprises a melting furnace (100) and a reduction-oxidation furnace (200). The melting furnace (100) melts phosphorus ores into molten mass and has a feed inlet (11) and a molten mass outlet (14). The reduction-oxidation furnace (200) comprises a spray gun (21, 26) and a furnace body (50) having a molten mass inlet (27), a slag outlet (23, 24) and a flue gas outlet (22), wherein the molten mass inlet (27) is connected to the molten mass outlet (14) and one end of the spray gun (21, 26) is inserted into the furnace body (50). The device making phosphorus by thermal process can reduce the impurities in the flue gas with P2O5, which facilitates the extraction of the P2O5 with high purity and low cost.
patents
