210 results about "Copper anode" patented technology

The invention provides a carbon dioxide capture and absorbent purification system and method coupled with metal refining. The system comprises an absorption module with an absorbent, a regeneration module with an electrolytic absorption unit and a gas-liquid separation unit, and a purification module, the absorption module is communicated with flue gas; the regeneration module and the purification module are selectively communicated with the absorption module so as to selectively regenerate and purify the absorbent; the electrolytic suction unit comprises a first anode chamber provided with a crude copper anode and a first cathode chamber provided with a refined copper cathode; a first outlet of the absorption module is communicated with an inlet of the first anode chamber, and a second outlet of the absorption module is communicated with a purified gas pipeline; an inlet of the gas-liquid separation unit is communicated with the first anode chamber, a first outlet of the gas-liquid separation unit is communicated with the first cathode chamber, and a second outlet of the gas-liquid separation unit is communicated with an exhaust pipeline; and the outlet of the first cathode chamber is communicated with the second inlet of the absorption module. The system is high in energy efficiency, low in energy consumption, low in cost and high in trapping efficiency.

The invention discloses a DCS (Distributed Control System)-based ignition and temperature rise mode of a copper anode slime roasting rotary kiln, which specifically comprises the following steps of: setting initial control conditions, drawing a temperature rise curve according to a target temperature, a temperature rise period and a temperature rise gradient, and then starting ignition preparation. Before natural gas is introduced into the combustion chamber for combustion, rotary kiln operation and combustion-supporting air purging are carried out, after purging is carried out for a period of time, combustion-supporting air and natural gas are introduced for ignition at the same time, and meanwhile the ignition condition is judged through a monitor. And if ignition fails, under the condition of no abnormity, purging can be repeated, and natural gas is introduced for re-ignition. According to the method, the natural gas flow and the combustion-supporting air volume are automatically controlled by the DCS according to the drawn temperature rise curve. The system has the beneficial effects that multiple ignition conditions can be controlled at the same time, remote automatic ignition is achieved, the ignition condition is fed back in time, the natural gas flow is flexibly controlled, the combustion temperature is controlled, the ignition effect of the rotary kiln is guaranteed, and meanwhile production operation safety of the rotary kiln is guaranteed.

The invention provides an electrochemical carbon dioxide trapping system and method coupled with metal refining. According to the system, carbon dioxide is absorbed in an absorption unit through an absorbent; a crude copper metal plate in coordination combination with ammonia is adopted as an electrode of an anode chamber, absorption liquid is desorbed under the action of a crude copper anode, elements, more active than metal copper, in the crude copper anode in the anode chamber are dissolved in the absorption liquid, and copper ions can be released into the carbon dioxide loaded absorption liquid in an electrochemical dissolution mode; carbon dioxide is desorbed in a mode of coordination combination with ammonia, and a gas mixture containing the copper / ammonia coordination compound and carbon dioxide is obtained; separating the gas-liquid mixture through a gas-liquid separation unit to obtain carbon dioxide gas and a separation liquid; the separation liquid is subjected to electrodeposition under the action of a refined copper cathode in a cathode chamber, refined copper and an absorbent are obtained, and regeneration of the absorbent is achieved; finally, the absorbent enters the absorption unit again to provide the absorbent, and cyclic utilization of the absorbent is achieved.

The invention relates to a method for recovering tellurium from copper anode slime through cooperation of ultrasound and hydrogen peroxide, and belongs to the field of wet metallurgy of scattered metal. The method comprises the following steps: drying and grinding copper anode slime to obtain copper anode slime powder; the method comprises the following steps: adding copper anode slime powder into a sulfuric acid solution, mixing to obtain copper anode slime slurry, adding hydrogen peroxide into the copper anode slime slurry, carrying out ultrasonic enhanced leaching for 20-160min, and carrying out solid-liquid separation to obtain a leaching solution containing copper and tellurium and high-grade valuable metal leaching residues. According to the method, hydrogen peroxide is effectively promoted to be decomposed by ultrasound to generate hydroxyl radicals, the oxidation potential of a system is regulated and controlled, copper and tellurium are selectively converted into copper ions, tellurate radicals enter a solution, and valuable elements such as gold, silver and selenium are enriched in slag; necessary heat is provided for the reaction by utilizing the heat effect of ultrasonic and heat released by chemical reaction, and extra heating is not needed; strong jet flow generated by ultrasound effectively destroys raw material inclusion and secondary wrapping, reaction mass transfer is enhanced, and the leaching rate of tellurium is increased. The method disclosed by the invention is simple in leaching process operation, low in cost and high in reaction speed.

The invention discloses a method for treating copper anode slime through combination of reduction smelting, vacuum distillation and oxidation refining. The method comprises the following steps: firstly, adding a reducing agent and a slagging constituent into tellurium slag obtained by removing copper, selenium and tellurium from copper anode slime by a conventional method, and uniformly mixing to obtain a mixed material; the obtained mixed material is added into a converter to be subjected to a heating reduction smelting reaction, and reducing slag and high-gold precious lead are generated in the converter; the method comprises the following steps: putting high-gold precious lead into a vacuum furnace for vacuum distillation, cooling after distillation, filling nitrogen for protection after cooling, and opening the vacuum furnace to discharge lead-bismuth alloy and residues when the pressure reaches the standard atmospheric pressure; and the obtained residues are placed in a refining furnace to be subjected to oxidation refining, and lead bismuth slag, tellurium slag, alloy slag and an alloy plate are generated. By means of the technical scheme, the direct recovery rate of precious metal is high, the field environment is good, the production cost is low, the additional value of by-products is high, and the technical problems existing in an existing copper anode slime treatment process can be effectively solved.

The invention relates to a secondary copper anode plate casting line and a production process thereof, and relates to the technical field of secondary copper casting, the casting line comprises a pouring gate, a rack, a plurality of molds distributed on a disc in the circumferential direction, a machine base fixed beside the rack, a driven gear rotationally connected to the machine base, and an outer gear ring fixed to the outer wall of the disc and meshed with the driven gear; a rotating column is fixed to the center of the driven gear, a hopper is rotationally connected to the rotating column, a first torsional spring is arranged between the hopper and the rotating column, an arc-shaped notch is formed in the side, facing the disc, of the top of the machine base, and a dumping plate is fixed to the edge of the top of the hopper. The driving source runs at a constant speed, casting of the regenerated copper anode plate can be automatically completed, casting of all molds can be completed without stopping rotation of the disc, and the production efficiency is improved; a driving source for driving the disc to rotate is more friendly, frequent starting and stopping are avoided, and the service life of the driving source is prolonged; the use of control equipment is reduced to the greatest extent, and the casting line can operate automatically and stably.

The invention discloses a method for cooperatively treating a lead-copper anode slime mixture through a noble lead furnace and a top-blown furnace, which comprises the following steps: mixing copper-lead anode slime according to a certain proportion, conveying the copper-lead anode slime into the noble lead furnace for melting, dividing the copper-lead anode slime into a reducing slag layer and a noble lead layer in a reducing atmosphere in the furnace, conveying the slag material into a slag converter through a chute, precious lead is conveyed into the top-blowing silver separating furnace through a chute to be oxidized and refined, and reducing slag is subjected to slag material secondary sedimentation in the slag converter. Later-stage slag, tellurium slag, alloy cleaning slag and crude silver are produced through deep oxidation refining, the later-stage slag returns to a bismuth system for treatment, the tellurium slag returns to a tellurium system for treatment, the alloy cleaning slag returns to a refining furnace for treatment, and the crude silver returns to gold, silver, platinum and palladium for treatment. The bottom blowing smelting furnace, the antimony production system and the bismuth production system are organically combined for cooperative treatment, liquid lead slag material chute stepped closed conveying is achieved in the production process, the production period can be shortened, the metal amount occupation pressure is reduced, the gold and silver direct recovery rate is increased, the working environment is improved, the labor intensity is reduced, and the production cost is reduced.

The invention belongs to the technical field of metallurgy, and relates to a complex gold concentrate multi-element comprehensive recovery method which comprises the following steps: S1, complex gold concentrate and auxiliary materials are subjected to bottom blowing smelting in an oxygen-enriched air atmosphere to obtain matte, bottom slag and flue gas; s2, copper matte and auxiliary materials are subjected to top-blowing converting in the air atmosphere, and crude copper, flue gas and converting slag are obtained; and S3, the crude copper and carbonate are refined in the air atmosphere, after refining is finished, sulfur hexafluoride gas is introduced for a reaction in the air atmosphere, methane gas is introduced for reduction in the inert atmosphere after the reaction is finished, and the copper anode plate is obtained. According to the method, arsenic, antimony and bismuth in the crude copper are removed through two-step oxidation and impurity removal, and the phenomenon that arsenic, antimony and bismuth elements in the complex gold concentrate are enriched in the copper anode plate along with smelting and refining, and consequently the copper anode plate is passivated in the subsequent electrolysis process is avoided; and the recovery method is simple in process and high in recovery rate.

The invention is applicable to the technical field of metal smelting, and particularly relates to an electrolytic copper anode slime refining management and control method and equipment, and the method comprises the following steps: obtaining refining instruction information of anode slime in a refining workshop; based on the refining instruction information, area judgment is conducted before anode slime refining, and a refining area is obtained; based on the refining instruction information and the refining area, safety condition judgment is conducted before anode slime refining, and area safety information is obtained; based on the refining instruction information, the refining area and the area safety information, refining condition judgment is conducted before the anode slime is refined, and refining demand information is obtained; and controlling a refining management and control device to perform refining management and control on the anode slime according to the refining area, the area safety information and the refining demand information. According to the electrolytic copper anode slime refining control method provided by the invention, the safety of an operation area is improved, the precision of refining parameters is improved, and possible injuries to technicians and influences on other objects during working are reduced.

The utility model discloses a sulfate copper plating phosphor copper anode black film removing device which comprises a cleaning water tank, two machine frame plates are symmetrically arranged on the cleaning water tank, the upper portions of the two machine frame plates are fixedly connected through a connecting rod, and the two machine frame plates are rotationally provided with a driving rotating shaft below the connecting rod. A driving motor used for driving the driving rotating shaft to rotate is arranged on the outer side of one rack plate, and driving gears are arranged on the portions, close to the inner sides of the two rack plates, of the driving rotating shaft correspondingly; the two rack plates are rotationally provided with a roller assembly below the driving rotating shaft, the roller assembly comprises two transmission fluted discs which are symmetrically arranged and a roller body which is fixedly arranged between the two transmission fluted discs, and the upper ends of the two transmission fluted discs are meshed with the lower ends of two driving gears respectively; and the section of the cylinder body is a regular hexagon. The device can automatically remove the black film on the surface of the phosphor copper ball for sulfate copper plating, and is convenient, fast, time-saving and labor-saving.

The invention discloses a method for recovering valuable metals from copper anode slime step by step, and belongs to the technical field of metallurgy and chemical industry. According to the method, through control over the oxidation-reduction potential, the oxidation-reduction potential is high in the leaching stage, and it is guaranteed that gold, selenium, tellurium and the like can be oxidized to enter a leaching solution; in the reduction stage, gold, selenium and tellurium products are reduced step by step according to the difference of gold, selenium and tellurium in reduction potentials; in the leaching stage, soluble chlorine salt is added while enough oxidation potential is guaranteed, enough chloride ions are provided for the solution, and therefore gold can enter the solution in the form of AuCl4-(tetrachloroauric acid); meanwhile, in the oxidation leaching stage, a small amount of silver enters the solution in the form of silver sulfate or silver complex, and under the condition that enough chloride ions are provided, silver is precipitated and retained in residues in the form of silver chloride, so that separation of gold and silver is achieved, and meanwhile dispersion of gold and silver in the leaching process is reduced. According to the method, valuable metal is efficiently separated and recycled.

The invention discloses a method for obtaining crude copper by taking high nickel-copper concentrate as a raw material and ensuring the valuable metal recovery rate, which comprises the following steps: smelting the high nickel-copper concentrate in a side-blown converter, depleting smelting slag in an electric furnace, blowing in a Kaldo furnace, vulcanizing and blowing Kaldo slag in a PS converter, and recovering nickel by grinding and floating separation and acid dissolution and electrodeposition. According to the method, a new treatment process from the high-nickel-copper concentrate to the crude copper is achieved, the prepared crude copper can directly enter an anode furnace to be refined, then a qualified copper anode plate is obtained through disc casting, and meanwhile the recovery rate of copper and nickel in the high-nickel-copper concentrate is increased.

The invention discloses a method for stepwise dissolution of copper, selenium and tellurium in copper anode slime and enrichment of precious metals, the method comprises the steps of ball milling and drying, pressure leaching, oxygen pressure conversion and alkaline leaching, in the pressure leaching process, the oxygen partial pressure in a sulfuric acid solution with the concentration of 10-30 g / L is controlled to be 0.05-0.2 MPa at the temperature of 100-120 DEG C, NaCl and HCl are added in the oxygen pressure conversion to improve the Se recovery rate, and the alkaline leaching is carried out at the temperature of 100-120 DEG C; na2S is added in alkaline leaching, so that the tellurium recovery rate is remarkably improved, and the copper-selenium-tellurium leaching efficiency is high.

The invention relates to the technical field of non-ferrous metal smelting, and discloses a combined treatment method of copper anode slime and lead anode slime, which comprises the following steps: step 1, pretreatment: mixing the copper anode slime and the lead anode slime, and then sequentially carrying out ball-milling crushing and water-washing desalination, the ball-to-material ratio of the ball-milling crushing is 4: 1-6: 1, and the particle size D50 of the crushed material is 8-25 [mu] m; the pretreated raw materials and a leaching agent are mixed and react for 1.5-3 h at the temperature of 60-75 DEG C under ultrasonic field and constant potential control, the potential range of constant potential control is 0.90-1.10 V, and the leaching agent comprises, by mass, 35-45 parts of thiourea, 8-12 parts of sodium chloride, 4-6 parts of ammonium persulfate, 3-5 parts of citric acid and 12-18 parts of sulfuric acid. By adopting the technical scheme of the synergistic effect of electrochemical potential gradient regulation and control and a complexing competitive mechanism, the defect that the leaching rate of precious metal is insufficient due to overlapping of oxidation-reduction potentials is overcome.

The invention relates to a method for recycling selenium and tellurium from copper anode slime copper separation liquid step by step, and aims to solve the technical problems that pyrogenic separation is needed after selenium and tellurium are extracted, and the treatment process flow is long. According to the technical scheme, the method comprises the following steps: (1) heating, concentrating, cooling and filtering the copper anode slime copper separation liquid; (2) detecting the content of selenium and tellurium; (3) carrying out sodium hydrogen sulfite reduction on filtrate I to extract selenium; (4) chlorinating filtrate II and then reducing to obtain crude tellurium; after the copper separation liquid is treated step by step, step-by-step recovery of selenium and tellurium in the copper separation liquid is achieved through a one-step method, the recovery process of selenium and tellurium is shortened, the recovery rate of selenium and tellurium in the copper anode slime is increased, and the economic benefits of smelting plants are improved.

The invention discloses a feeding method and a smelting device for smelting anode slime, the feeding method comprises the steps that wet materials are added into a smelting furnace, and the wet materials comprise at least one of sediment mud of a flue gas treatment system, secondary sediment selenium and replacement silver powder; and dry materials are added into the smelting furnace in batches and smelted, wherein the dry materials comprise copper-removed anode slime and converting slag. According to the charging method for smelting the anode slime, the recycling rate of precious metal can be increased, meanwhile, environmental pollution is reduced, and the requirement for sustainable development is met.

The invention belongs to the technical field of supercapacitor electrode materials, and relates to a copper anode for a high-performance self-supporting supercapacitor and a preparation method and application of the copper anode. The method comprises the following steps: cutting a copper foil into regular small pieces, carrying out ultrasonic cleaning, carrying out ultrasonic treatment with a hydrochloric acid solution to remove an oxide layer, thoroughly washing with deionized water and ethanol to remove residual acid, putting the pretreated copper foil into a ceramic boat, and putting the ceramic boat in a central area of a muffle furnace; and after heating, cooling is performed to obtain the CuO-Cu2O / Cu foil electrode. The method is simple and convenient to operate, a unique CuO-Cu2O hierarchical heterostructure is formed on the surface of the copper foil by using a simple muffle furnace annealing process in an air environment, and the prepared copper anode has ultrahigh specific capacity of 27.1 Fcm <-2 > under the current density of 5mA cm <-2 >, can still keep stable performance under mechanical deformation, and can be applied to the field of lithium ion batteries. Wide application prospects are realized in the fields of portable electronic equipment, wearable equipment, large-scale energy storage and the like.

The invention discloses a method for enriching and recovering silver and selenium from low-nickel and high-nickel copper anode muds. The method comprises the following steps: slurrying copper anode mud and dilute sulfuric acid solution in a slurrying tank, pumping the pulp into a reactor through a pump, introducing oxygen to carry out low-pressure oxygen leaching under acidic and constant temperature conditions, stopping the introduction of oxygen to carry out anaerobic leaching, filtering and washing the pulp to obtain filtrate and filter residue, and repeatedly washing the filter residue to obtain a pressurized copper-removing material. The method can effectively remove impurities such as copper and tellurium from the copper anode mud, reduce the leaching of silver and selenium, and almost all of the silver and selenium can be enriched in the residue, which is convenient for subsequent alloy treatment to recover silver and selenium. After the silver and selenium content in the pressurized liquid is greatly reduced, subsequent tellurium recovery and extraction are also convenient. The treatment process is simple and easy to operate. The leaching rate of copper can reach more than 98%, and the leaching rate of tellurium can reach more than 55%.

The invention discloses a high platinum group metal copper anode slime treatment method which comprises the following steps: placing high platinum group metal copper anode slime in dilute sulphuric acid, blowing air, heating, oxidizing and leaching copper and nickel in the high platinum group metal copper anode slime, and carrying out solid-liquid separation to obtain a first filtrate and a first filter cake; dispersing the first filter cake in dilute sulfuric acid, carrying out heating and pressurizing reaction in an oxygen atmosphere, dissolving out part of metal in the first filter cake, carrying out solid-liquid separation to obtain a second filtrate and a second filter cake, mixing the second filter cake, calcium oxide and coke powder, pressing into blocks, smelting at 1450-1550 DEG C for a set time, atomizing the smelted alloy to obtain fine particles, and recycling the fine particles. Gold-platinum-palladium alloy powder is obtained; and after the second filtrate is subjected to flash evaporation and rapid cooling, ferrous sulfate is added into the second filtrate for palladium precipitation, the filtrate obtained through filtering is sequentially subjected to the steps of silver precipitation and selenium and tellurium precipitation, thiourea is added into the remaining filtrate, a reaction is conducted at high temperature and high pressure, thiourea complex precipitation is generated, solid-liquid separation is conducted, third filtrate and a third filter cake are obtained, and platinum family concentrate is obtained.

The present application relates to copper anode slime comprehensive treatment technical field, especially in kind of copper anode slime's purification treatment process. Including the following steps: copper anode slime's pretreatment;Metal gel capture agent's preparation;Vacuum inductive desulfurization of copper arsenic tellurium anode slime is removed;The noble metal of desulfurized anode mud silicon is captured.The present application can increase the mutual contact of silicon dioxide, sodium carbonate, bismuth oxide and carbon fiber and metal elements in desulfurized anode gold mud in three-dimensional space by preparing metal gel capture agent, thereby increasing the contact area, strengthening the slagging reaction of silicon dioxide and sodium carbonate with impurity elements such as arsenic and antimony, and further enhancing the ability of carbon element to reduce bismuth oxide, so that bismuth can better capture gold and silver elements, and impurity metals can better aggregate in the slag, and the obtained bismuth-silver-gold alloy particles have high purity and good metal purification effect.

The application relates to an ultrasonic treatment method of high-impurity copper anode slime. The ultrasonic treatment method is realized through hierarchical ultrasonic strengthening and synergistic leaching. In the first-stage leaching, hydrogen peroxide-oxygen-rich air composite oxidants are combined with ultrasonic cavitation effects to realize efficient oxidation leaching of arsenic, antimony and bismuth; in the second-stage leaching, sulfuric acid-sodium sulfite mixed leaching agents are used to remove harmful impurities such as arsenic, antimony and bismuth under ultrasonic strengthening, and to efficiently enrich valuable metals such as gold, silver, selenium and tellurium, so that the treatment period is shortened, energy consumption and reagent consumption are reduced, resource comprehensive utilization is improved, and the method is suitable for efficient separation and resource recovery of high-impurity copper anode slime containing refractory impurities such as arsenic, antimony and bismuth and valuable metals such as gold, silver, selenium and tellurium.

This invention relates to the field of non-ferrous metal smelting technology and discloses a high-recovery, emission-reducing copper anode mud treatment process with controlled potential. Each step employs a controlled potential method to regulate the metal leaching rate and reduction rate, thereby reducing the loss rate of valuable metals in each step and improving the overall metal recovery rate. A sulfidation process is used to treat the antimony-bismuth removal solution, enriching antimony and bismuth in the form of sulfides. An evaporation crystallization method is used to open most of the copper in the anode mud in the form of crude copper sulfate. While enriching antimony and bismuth, the production of basic copper carbonate is significantly reduced, eliminating the "rotary kiln selenium distillation" and "water leaching copper separation" processes, and reducing system acid expansion caused by the "rotary kiln selenium distillation" process. By using the recycled reduction solution and secondary gold separation solution as acid sources for the antimony-bismuth removal process and the primary gold separation solution, the waste acid reuse rate and valuable element recovery rate can be improved. This effectively reduces the total wastewater discharge, simplifies the process flow, and improves the recovery rate of valuable metals.

The invention belongs to the technical field of metallurgy, and relates to a complex gold concentrate multi-element comprehensive recovery method which comprises the following steps: S1, complex gold concentrate and an auxiliary material I are subjected to bottom blowing smelting in a bottom blowing furnace in an oxygen-enriched air atmosphere to obtain matte, bottom slag and flue gas; s2, copper matte and an auxiliary material II are subjected to top-blowing blowing in a top-blowing furnace in the air atmosphere, and crude copper, flue gas and blowing slag are obtained; s3, refining the crude copper and carbonate in an air atmosphere, introducing methane gas after the reaction is finished, and reducing in an inert atmosphere to obtain a copper anode plate; wherein in the step S1, in the bottom blowing smelting process, a coking inhibitor composed of aluminum oxide, calcium oxide, sodium carbonate, ammonium molybdate, sodium borate and cerium dioxide is blown in an ascending flue of a bottom blowing furnace, the occurrence of the coking condition can be effectively reduced, and the complex gold concentrate recovery production start-up rate is increased.

The present invention provides a carbon dioxide capture and absorbent purification system and method coupled with metal refining. The system includes an absorption module having an absorbent, a regeneration module having an electrolytic desorption unit and a gas-liquid separation unit, and a purification module. The absorption module is connected to flue gas. The regeneration module and the purification module selectively connect to the absorption module to selectively regenerate and purify the absorbent. The electrolytic desorption unit includes a first anode chamber containing a blister copper anode and a first cathode chamber containing a refined copper cathode. The first outlet of the absorption module connects to the inlet of the first anode chamber, and the second outlet of the absorption module connects to a purified gas pipeline. The inlet of the gas-liquid separation unit connects to the first anode chamber, the first outlet of the gas-liquid separation unit connects to the first cathode chamber, and the second outlet of the gas-liquid separation unit connects to an exhaust pipeline. The outlet of the first cathode chamber connects to the second inlet of the absorption module. This system has high energy efficiency, low energy consumption, low cost, and high capture efficiency.

1. The name of the design product: copper anode plate mold. 2. The use of the design product: mold for producing copper anode plate. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The right view is symmetrical with the left view, and the right view is omitted.

The utility model relates to the technical field of copper anode plate electrolysis, and discloses a copper anode plate lug pressing device which comprises a machine frame, a conveying unit used for conveying a copper anode plate, a lug pressing unit connected to the machine frame, a feeding mechanism and a supporting block connected to the machine frame, the supporting block is used for supporting the lug parts of the anode plates so that gaps can be formed between the lug parts of the anode plates and the rack, and the feeding mechanism is used for transferring the anode plates on the conveying unit to the supporting block one by one and transferring the anode plates located on the supporting block to the next working procedure at the same time; according to the utility model, the anode plates are supported by the supporting blocks, and the supporting blocks with different heights can be replaced to adapt to the anode plates produced by different molds, so that the contact area between the pressing lugs and the conducting bars is ensured, the electrolysis effect is ensured, and the electrolysis efficiency is improved.

The application discloses a kind of based on multi-source infrared copper smelting anode furnace brick thickness on-line detection and life prediction method, belong to industrial equipment health monitoring and intelligent diagnosis technical field.Through multi-view infrared thermal image acquisition furnace wall temperature field, combine brightness consistency and texture feature to carry out dynamic emissivity compensation, inhibit smoke, flame and reflection interference, obtain stable surface temperature field.Based on heat conduction and energy conservation constraint construction physical consistency deep learning model, realize temperature field to furnace brick thickness field non-contact inversion.Combining partition modeling and time series evolution analysis, predict furnace brick attenuation trend and remaining life, and realize model self-correction through on-line drift monitoring.The application can realize continuous monitoring and life warning without stopping furnace, and is suitable for complex smelting conditions.

The present application relates to the technical field of extracting silver from deselenium residue, and discloses a method for extracting silver from deselenium residue by chlorine-free double-pressure, silver is extracted from deselenium residue by chlorine-free leaching, silver in copper anode slime deselenium residue is leached by one-stage pressurization, one-stage leaching residue is sent to two-stage pressurized sulfidation transformation, sulfidation transformation residue is returned to one-stage pressurized leaching for silver extraction after roasting, one-stage leaching liquid is sent to silver recovery, and roasting leaching residue is sent to extract other valuable elements, so that the silver leaching rate is high, the impurity content of the obtained crude silver powder is low, the crude silver powder can be used as raw material for producing first-grade silver ingot, the disadvantage of needing to add a large amount of chloride in conventional silver extraction is overcome, other valuable elements are enriched, selective leaching of silver is ensured, and part of impurities is inhibited, the corrosion problem of the system equipment can be better solved due to the adoption of chlorine-free pressurized leaching, no new solid waste and waste liquid are generated in the whole process, the problem of difficult opening of the present process waste water is effectively solved, and resources are fully utilized.

The utility model discloses copper anode slime precious metal smelting equipment which comprises a hot melting furnace body, a furnace shaking mechanism is arranged at the bottom of the hot melting furnace body, a smoke pumping mechanism is arranged at the upper end of the hot melting furnace body, the hot melting furnace body comprises a furnace body, a furnace cover, a movable frame, a furnace pipe and an electric heating wire, and rotating shafts rotationally connected with the movable frame are arranged on the left side and the right side of the furnace body. The furnace pipe and the heating wire are installed in the furnace body, the furnace cover is installed at the top of the furnace pipe, the furnace shaking mechanism comprises a servo motor, an inserting rod, a connecting rod and a rotating disc, the inserting rod is detachably installed at the bottom of the furnace body, the servo motor is fixedly installed on the movable frame, the rotating disc is installed on an output shaft of the servo motor, and an eccentric shaft is arranged on the upper end face of the rotating disc. The furnace has the advantages that the furnace body can swing, heating is uniform, smoke exhaust is efficient, and blockage is prevented, and the problems that existing equipment is uneven in heating and low in smelting efficiency, and a smoke exhaust system is prone to being damaged are solved.

This invention discloses a method for the tiered extraction of copper anode slime from co-smelting copper anodes, belonging to the fields of resource comprehensive utilization and non-ferrous metal metallurgy. The method is used to treat copper anode slime produced after co-smelting waste circuit board pyrolysis residue and copper sulfide ore, followed by blowing and electrolytic refining. The method includes: sulfidation leaching of the copper anode slime to preferentially allow tellurium to enter the leachate; reduction precipitation of the tellurium-containing leachate to recover tellurium products; atmospheric pressure mixed acid leaching of the sulfidation leaching residue to preferentially allow copper and selenium to enter the leachate, yielding a copper-selenium-containing leachate and a precious metal-enriched slag; chlorination leaching of the precious metal-enriched slag to allow gold to enter the chlorinated leachate and separate from silver; and SO2 reduction precipitation and extraction separation of the copper-selenium-containing leachate to sequentially recover selenium and copper. This method can achieve tiered separation and efficient recovery of Te, Se, Au, Ag, and Cu from novel copper anode slime produced by co-smelting, and has the advantages of a clear process, good selectivity, and suitability for closed-loop operation.