Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

677 results about "Aluminium electrolysis" patented technology

Method and system for utilizing flue gas generated after petroleum coke calcination

The invention provides a method and system for utilizing flue gas generated after petroleum coke calcination, and belongs to the field of aluminum electrolysis and aluminum carbon. The method comprises the following steps: collecting high-temperature flue gas discharged after calcining petroleum coke; the high-temperature flue gas is subjected to heat exchange treatment, and low-temperature flue gas with the set temperature is obtained; low-temperature flue gas is used as a heat source, the wet-based petroleum coke is heated and dried, and dry-based petroleum coke with a set water value is obtained; and calcining the dry-based petroleum coke, and circularly using flue gas collected by calcining for heating and drying the wet-based petroleum coke to form a closed cycle. High-temperature flue gas obtained after calcination is subjected to heat exchange to form low-temperature flue gas, the low-temperature flue gas is used for drying wet-based petroleum coke, a flue gas circulation system is formed, and multi-stage utilization of waste heat is achieved. Meanwhile, the dried petroleum coke can reduce energy consumption required by water evaporation during calcination, and erosion of water vapor to a hearth refractory material is avoided. Therefore, the negative influence of petroleum coke moisture on the heat efficiency is reduced while the waste heat utilization rate after petroleum coke calcination is improved.
Owner:ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO

Electrochemistry-assisted method for extracting lithium and sodium from overhaul slag

The invention discloses a method for extracting lithium and sodium from overhaul slag through electrochemistry assistance, and belongs to the technical field of aluminum electrolysis lithium-containing solid waste cyclic economic utilization and environmental protection. A method for extracting lithium and sodium from overhaul slag through electrochemical assistance comprises the following steps that the overhaul slag and auxiliary materials are subjected to die-casting forming to prepare an electrode plate, and then lithium and sodium are extracted from the overhaul slag through an electrochemical method. According to the method, for the lithium-containing overhaul slag solid waste generated in the electrolytic aluminum industry, migration and dissolution of metal ions are enhanced through electrochemical assistance in a weak acid environment, so that comprehensive recycling of valuable elements of lithium and sodium is achieved, and meanwhile the recovery rate of lithium can be larger than 90%. In addition, the method can be carried out at low temperature, so that the energy consumption can be obviously reduced, and meanwhile, the equipment investment can be greatly reduced; meanwhile, solid waste resource utilization can be achieved, the risk of secondary pollution is reduced, and good economic and environmental benefits are achieved.
Owner:ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD

Federal learning-based electrolytic aluminum tank temperature prediction model construction method, system, equipment and medium

The invention discloses an electrolytic aluminum tank temperature prediction model construction method, system, equipment and medium based on federated learning, and belongs to the technical field of electrolytic aluminum tank temperature prediction.The method comprises the steps that production operation parameters are collected in multiple electrolytic aluminum factories respectively, and local sample data sets are constructed; a neural network model used for temperature prediction is constructed and trained locally, and before training, a whale optimization algorithm is adopted to search and determine training control parameters of the neural network model; the neural network model parameters are encrypted and uploaded to a central server; decrypting the uploaded encrypted neural network model parameters, and executing neural network model parameter aggregation to obtain global model parameters; issuing the aggregated global model parameters to a plurality of electrolytic aluminum factories to update a local neural network model; and repeating the operation until the neural network model converges. According to the method, the accuracy and practicability of temperature prediction of the aluminum electrolysis cell are remarkably improved on the premise that industrial data privacy is guaranteed.
Owner:YUNNAN POWER GRID CO LTD

Device and method for recovering valuable metals from furnace slag of aluminum electrolysis cell carbon slag reduction copper furnace

The invention provides a device and a method for recovering valuable metals from slag of a copper furnace by reducing carbon slag in an aluminum electrolysis cell, and relates to the technical field of metal material recovery, the device comprises a smelting furnace, a mixing bin, an anti-blocking mechanism and a screening mechanism; the anti-blocking mechanism comprises a rotating ring rotationally connected to the bottom of the mixing bin, a gear disc is fixedly arranged at the bottom of the rotating ring, an arch breaking plate is fixedly arranged on the inner side of the gear disc and located on the inner side of the mixing bin, a mounting seat is fixedly arranged on the right side of the mixing bin, and a driving motor is arranged at the top of the mounting seat. According to the scheme, it is finally achieved that when a gear disc rotates, an adjusting support and a rotating wheel are driven to rotate at the same time, under the action of a protruding plate, a screening frame drives a screen to move up and down, and marbles irregularly jump in a lantern ring, so that discharged materials are screened, the roasted materials do not need to be screened independently, and the screening efficiency is improved. And the efficiency of recovering valuable metals from the copper-aluminum slag is improved.
Owner:YIFENG JIULING LITHIUM IND CO LTD

Special aluminum electrolytic capacitor for electric tool and preparation method thereof

The invention discloses an aluminum electrolytic capacitor special for an electric tool and a preparation method of the aluminum electrolytic capacitor. The method comprises the following steps that a positive electrode guide pin and a negative electrode guide pin are riveted to an anode foil and a cathode foil respectively; placing electrolytic paper between the anode foil and the cathode foil, and winding to form a core package; carrying out baking drying and electrolyte impregnation treatment on the wound core package, and then carrying out packaging and aging; the electrolyte consists of the following components in percentage by mass: 45-60% of a solvent, 25-40% of a solute, 5-15% of an additive and 5-10% of a stabilizer, the solute contains 2-butyl suberic acid; the stabilizer contains alkyl phosphate. According to the preparation method of the aluminum electrolytic capacitor special for the electric tool, the electrolyte formula is optimized, oxidation hydrolysis of the electrode foil and the oxidation film is effectively inhibited, the ion migration resistance is reduced, the polarization phenomenon is reduced, the loss value and the equivalent series resistance (ESR) of the obtained capacitor are remarkably reduced, the ripple resistance is improved, and the aluminum electrolytic capacitor is suitable for the electric tool.
Owner:ZHAOQING BERYL ELECTRONICS TECH

Intelligent crust breaking and discharging system based on machine vision

The invention provides an intelligent crust breaking and blanking system based on machine vision. The intelligent crust breaking and blanking system comprises an active detection module, an image acquisition module, an image processing and calculating module, a data communication module, a cell control machine, a high-temperature-resistant insulation structure and a cooling device, the active detection module forms a reference line in an aluminum electrolysis cell monitoring area; the image acquisition module is used for respectively acquiring image data of a motion state of a crust breaking hammer and a material falling process of a blanking port; the image processing and calculating module is used for carrying out preprocessing, feature extraction and calculation on the image to obtain a crust breaking depth parameter and blanking flow data; the data communication module transmits a processing result to the cell control machine, and the cell control machine adjusts the crust breaking set depth and optimizes the blanking interval according to the processing result; the high-temperature-resistant insulation structure carries out physical protection and electrical isolation on key modules, and the cooling device keeps the internal temperature stable and prevents the lens from being polluted. Therefore, the crust breaking depth and the blanking quantity control precision can be improved, the maintenance cost is reduced, and the adaptability to a high-temperature strong electric field environment is improved.
Owner:ORDOS MENGTAI ALUMINUM CO LTD

Method and equipment for leaching and recycling aluminum electrolysis waste carbon cathode

The invention provides a method and equipment for leaching and recycling an aluminum electrolysis waste carbon cathode. The method relates to the field of solid waste treatment, and comprises the following steps: S1, crushing the recycled waste aluminum electrolysis waste carbon cathode by using a jaw crusher, further finely grinding to a certain mesh number by using a vibration mill, and drying for later use; s2, the ground waste carbon cathode is weighed, a certain amount of water is added, the mixture is placed in an ultrasonic instrument at the normal temperature to react for a period of time, and washing residues and washing liquid are obtained through filtering; s3, a sodium hydroxide solution with a certain concentration is added into the washing residues to be mixed, and the mixture is placed in an ultrasonic instrument to react for a period of time at a certain temperature. Compared with a traditional leaching method, the method has the advantages of being high in efficiency and good in effect, the leaching rate of valuable substances is greatly increased, and the valuable substances are recycled through a series of steps such as washing, alkaline leaching, acid leaching and recycling. The method realizes efficient recovery of useful components in the waste carbon cathode, does not produce solid waste and wastewater in the process, is environment-friendly, and realizes effective utilization of resources and harmless treatment of dangerous solid wastes.
Owner:FENGCHENG JIULING LITHIUM IND CO LTD

Method for recovering lithium and fluorine from aluminum electrolysis hazardous waste

The invention relates to a method for recovering lithium and fluorine from aluminum electrolysis hazardous waste, which comprises the following steps: firstly, mixing organic polyol and alkaline hydroxide according to a molar ratio of 1: (0.5-2) to obtain a eutectic solvent; heating the eutectic solvent to 80-150 DEG C, and adding a proper amount of raw material fine powder and calcium oxide for reaction leaching; carbonating and filtering the leachate to obtain lithium carbonate; washing the leaching residues with an acetic acid solution to obtain a calcium fluoride product; the concentration of fluorine ions in the leachate is smaller than or equal to 200 ppm, and the purity of calcium fluoride is larger than or equal to 90%; the leaching rate of lithium in the method is greater than 85%; the slag feeding rate of fluorine is greater than 95%; and no hydrogen fluoride gas is generated in the method. According to the method, a non-toxic and biodegradable eutectic solvent is adopted as a leaching agent, and efficient leaching of lithium and fluorine in the aluminum electrolysis dangerous waste materials is achieved; calcium oxide is used as a precipitating agent, free fluorine is promoted to be precipitated and recycled as calcium fluoride, the whole process meets the requirement of green metallurgy, and the win-win situation of resources and the environment is achieved.
Owner:JIAXING HOUJIE TECHNOLOGY CO LTD

Aging sorting device of bolt type aluminum electrolytic capacitor

The utility model relates to the technical field of quality inspection equipment, and discloses an aging sorting device of a bolt type aluminum electrolytic capacitor, which comprises a detection mechanism, a guide mechanism arranged at the upper end of the detection mechanism, the detection mechanism comprises a base, a detector fixedly mounted at the front end of the top wall of the base, and a plurality of aging detection circuits arranged in parallel are arranged in the detector. Each aging detection circuit is provided with a detection seat, and the plurality of detection seats are horizontally arranged at equal intervals. According to the utility model, the detector is arranged, a plurality of aging detection circuits connected in parallel are arranged in the detector, and each aging detection circuit is provided with a detection seat, so that bolt-type aluminum electrolytic capacitors can be installed on the plurality of detection seats and are controlled by the data processing host; and compared with sequential detection of a plurality of bolt-type aluminum electrolytic capacitors, the integrated aging detection device is more convenient to use and can be used for integrated aging detection of the plurality of bolt-type aluminum electrolytic capacitors.
Owner:JIANGYIN JUNLILAI ELECTRONIC TECH CO LTD

Low-energy-consumption management and control method for aluminum electrolysis cell

The invention discloses a low-energy-consumption management and control method for an aluminum electrolytic cell, and relates to the technical field of electrolytic cell energy consumption management. Establishing a four-dimensional cooperative control system of electrolyte temperature, molecular ratio, aluminum level and cell voltage, and setting two control gradients of a stability interval and an energy efficiency optimization interval; a hierarchical dynamic regulation and control mechanism is implemented, regulation and control are executed according to the priority sequence of the aluminum level, the molecular ratio and the cell voltage, and a temperature self-adaptive compensation algorithm is adopted for molecular ratio regulation and control. When specific conditions are met, a golden window period control mode is activated, and special strategies are adopted for molecular ratio compensation and cell voltage adjustment; an emergency regulation and control mechanism is arranged to cope with abnormal fluctuation of molecular ratio, an energy efficiency optimization evaluation system is established, and a three-dimensional equilibrium curved surface is generated in an optimal control state in which direct current power consumption is reduced to 12510kwh / t.Al or below and is kept for 24 hours. The method realizes accurate regulation and control of key parameters of the aluminum electrolysis cell, effectively reduces energy consumption, and improves production stability and energy efficiency level.
Owner:广西华磊新材料有限公司

Cathode carbon block and steel bar assembling structure

The utility model belongs to the technical field of aluminum electrolysis, and particularly relates to a cathode carbon block and steel bar assembling structure which comprises a full-graphite cathode carbon block and a steel bar, at least one steel bar groove is formed in the full-graphite cathode carbon block in a penetrating mode, a leveling layer is arranged on the bottom wall of the steel bar groove, and the steel bar groove is formed in the full-graphite cathode carbon block in a penetrating mode. Two steel bars are symmetrically arranged in the steel bar groove at a fixed interval, and the bottom ends of the steel bars are tightly attached to the leveling layer. A partition layer is arranged in a steel bar groove between the two steel bars, and gaps between the side walls of the steel bars and the steel bar groove are sequentially filled with an inner filling layer and an outer filling layer from inside to outside. According to the structure, the convention is broken, two cathode paste materials are adopted, the cathode carbon block is assembled in a composite mode, compared with a traditional cathode assembly structure, the composite assembly structure can better achieve the effects of restraining horizontal current, reducing the surface conductive resistance of a cathode steel bar and obtaining lower furnace bottom pressure drop during operation of an electrolytic cell, and meanwhile cost is greatly reduced.
Owner:YUNNAN YUNLU LVYUAN HUIBANG ENG TECH CO LTD

High-sealing leakage-proof aluminum electrolytic capacitor structure

The utility model discloses a high-sealing liquid-leakage-proof aluminum electrolytic capacitor structure, relates to the technical field of capacitors, and solves the problems that an existing aluminum electrolytic capacitor is connected with an aluminum shell only through extrusion of a sealing cover plate in the assembling process, then electrolyte in the aluminum electrolytic capacitor is prevented from leaking, the anti-pressure capability of the aluminum electrolytic capacitor is low, and the service life of the aluminum electrolytic capacitor is prolonged. And the aluminum electrolytic capacitor is easy to damage when being extruded, so that the quality of the aluminum electrolytic capacitor is poor. Comprising a heat-shrinkable sleeve, and an aluminum shell sleeve is arranged in the heat-shrinkable sleeve; according to the utility model, the sealing expansion glue flows into the annular fluid groove for filling expansion, so that a second sealing effect is formed between the sealing cover plate and the aluminum shell sleeve, a high sealing effect is formed between the aluminum shell sleeve and the sealing cover plate, the sealing cover plate is positioned and pressed, and the sealing cover plate is prevented from being damaged in the process of pouring the sealing glue. And the sealing cover plate is pushed upwards.
Owner:SHENZHEN KANGCHENGDA ELECTRONIC CO LTD

Spinel type ceramic coated HEA core-shell powder material as well as preparation method and application thereof

The invention provides a spinel type ceramic (at) HEA core-shell powder material and a preparation method and application thereof, and the preparation method comprises the following steps: (1) cleaning high-entropy alloy powder to obtain a high-entropy alloy matrix; (2) preparing metal salt into a solution according to a stoichiometric ratio, dropwise adding a complexing agent and a precipitating agent into the solution, and carrying out a co-precipitation reaction to obtain ceramic coating phase slurry; (3) coating the ceramic coating phase in the slurry on the surface of the high-entropy alloy matrix through a dip-coating method or a spraying method to form a high-entropy alloy precursor; and (4) sequentially grinding and sintering the high-entropy alloy precursor to obtain the spinel type ceramic (at) HEA core-shell powder material. When the spinel type ceramic coated HEA core-shell powder material prepared by the method is applied to an aluminum electrolysis inert anode material, the corrosion resistance and the mechanical strength can be remarkably improved.
Owner:ZHENGZHOU UNIV

Anode foil production device and method for aluminum electrolytic capacitor

The invention relates to the technical field of aluminum electrolytic capacitors, in particular to an anode foil production device and method for an aluminum electrolytic capacitor. Comprising a foundation assembly, the foundation assembly comprises a base, a portal frame is installed on the top of the base, and a hollow conveying belt is installed in the base; a drying assembly is installed in the portal frame and comprises an upper drying bin fixedly connected into the portal frame, and an upper drying rod is arranged at the bottom of the upper drying bin. A lower drying bin is fixedly connected into the base and located in the middle of the hollowed-out conveying belt, and a lower drying opening is formed in the upper portion of the lower drying bin. Aiming at the defects in the prior art, the invention provides the anode foil production device and method for the aluminum electrolytic capacitor, which can effectively solve the problems of anode foil deformation and surface damage caused by overlarge airflow impact during drying and material performance change caused by local high temperature in the prior art.
Owner:ANHUI YONGRONG ELECTRONIC TECH CO LTD

Energy flow and carbon flow monitoring, evaluating and optimizing system for aluminum electrolysis production process

The invention discloses an energy flow and carbon flow monitoring, evaluating and optimizing system for an aluminum electrolysis production process, and belongs to the technical field of energy conservation, emission reduction and intelligent control in the metallurgical industry. The system design method comprises the following steps: designing an edge layer of the aluminum electrolysis production process energy flow and carbon flow control system, and inputting data collected by the edge layer into an energy flow-carbon flow coupling model in the cloud layer through the communication layer to execute analysis operation; an improved multi-objective genetic optimization algorithm is constructed in the cloud layer, and an optimal process parameter combination is obtained by optimizing an objective function; performing dynamic regulation and control, closed-loop feedback and exception handling operation through an execution mechanism of the edge layer; and performing comparative analysis and economic analysis on the designed aluminum electrolysis production process energy flow and carbon flow control system. Key parameters of an aluminum electrolysis process are monitored in real time through a multi-source data fusion technology, an energy efficiency-carbon emission correlation evaluation system is established in combination with big data analysis, and an electrolytic cell process parameter dynamic adjustment strategy is generated based on a self-adaptive optimization algorithm.
Owner:KUNMING UNIV OF SCI & TECH

High-performance aluminum electrolytic capacitor electrolyte and preparation method thereof

The invention relates to the technical field of aluminum electrolytic capacitor electrolyte processing, in particular to a high-performance aluminum electrolytic capacitor electrolyte and a preparation method thereof. The invention discloses a water-soluble conductive agent, which is prepared from the following raw materials in percentage by weight: 5 to 10 percent of conductive salt, 0.1 to 2 percent of corrosion inhibitor, 3 to 5 percent of butyl-terminated fatty alcohol-polyoxyethylene ether, 2 to 5 percent of polyacrylic acid-polyacrylamide diblock copolymer, 0.5 to 2 percent of additive, 0.5 to 2 percent of straight-chain polycarboxylic acid, 6 to 10 percent of ionic liquid and the balance of solvent, the butyl-terminated fatty alcohol-polyoxyethylene ether has the structural formula of R-O-(CH2CH2O) xCH2CH2OBu, r represents a fatty alcohol group, is C12-18 alkyl, and is a straight chain or a branched chain; n is the addition number of ethylene oxide, and x is equal to 10-50; through the synergistic effect of the components in the formula, a stable and efficient electrolyte system is formed, the performance and reliability of the aluminum electrolytic capacitor in severe environments such as high temperature and low temperature are remarkably improved, the service life of the aluminum electrolytic capacitor is prolonged, and the requirements of modern electronic equipment for high-performance capacitors are met.
Owner:DONGGUAN YONGQUAN ELECTRONIC TECH CO LTD

Electrolytic capacitor diaphragm with high voltage resistance and low loss and preparation method thereof

The invention belongs to the field of paper for aluminum electrolytic capacitors, and particularly relates to a high-voltage-resistance low-loss electrolytic capacitor diaphragm and a preparation method thereof. According to the diaphragm, a plant fiber single-layer paper base with the beating degree of 90-98 degrees SR is adopted, hydrophilic polymer coatings distributed in a discontinuous point shape are formed on the two surfaces of the diaphragm through gravure coating, the coating coverage rate ranges from 20% to 70%, and the total gluing amount ranges from 0.2 g / m to 6.0 g / m. According to the structure, on the premise that the thickness is not obviously increased, the smoothness of the diaphragm is obviously reduced, and the electrolyte adsorbability is enhanced, so that the ESR is reduced to 20-22 m omega, and meanwhile, it is ensured that the breakdown voltage is larger than or equal to 550 V. The aluminum electrolytic capacitor is suitable for high-performance and miniaturized aluminum electrolytic capacitors.
Owner:ZHEJIANG YUANRUN ELECTRONIC MATERIALS CO LTD +1

A method for preparing large-particle-size aluminum fluoride products from aluminum electrolyte leaching solution

The present invention provides a method for preparing large-sized aluminum fluoride products from aluminum electrolyte leaching solution, belonging to the technical field of aluminum electrolyte resource recovery. S1: Take the aluminum electrolyte leaching solution, and the molar ratio of F element to Al element in the aluminum electrolyte leaching solution is 1-2.5:1; S2: Heat the aluminum electrolyte leaching solution and add an alkali solution. When hydroxyaluminum fluoride precipitates in the aluminum electrolyte leaching solution, add crystal seeds and an organic surfactant, and continue to add the alkali solution to adjust the pH value to 2-7; stir and age, and then filter to obtain a filter cake and a filtrate; S3: Dry the filter cake, add ammonium bifluoride, mix well and then calcine to obtain aluminum fluoride products. The present invention provides a method for preparing large-sized aluminum fluoride products from aluminum electrolyte leaching solution, which solves the technical problems of too fine particle size and low purity of aluminum fluoride products in the prior art.
Owner:ZHENGZHOU LIGHT METAL TECH CO LTD +1

Preparation method of high-voltage low-internal-resistance electrolytic capacitor diaphragm

The invention relates to the field of paper for aluminum electrolytic capacitors, and discloses a preparation method of a high-voltage low-internal-resistance electrolytic capacitor diaphragm. The whole diaphragm is prepared from high-beating-degree and high-purity insulating softwood pulp, so that high unit thickness voltage resistance can be ensured. The adopted preparation method is a continuous drying mode, the drying efficiency is higher than that of a gap drying mode, after fibers are formed and dried through a fourdrinier wire, the surface of a paper web is treated in a spraying mode, then freezing and reduced-pressure drying are adopted, a large number of fine pore structures are given to the surface of the diaphragm, and the high voltage resistance of the diaphragm is reserved; and the adsorption speed and the adsorption capacity of the diaphragm on electrolyte can be effectively improved, so that the internal resistance of the diaphragm is reduced.
Owner:ZHEJIANG KAIEN NEW MATERIAL CO LTD +1

Sorting method for aluminum electrolysis anode scrap fine particulate matter

The invention provides a sorting method for aluminum electrolysis anode scrap fine particles, and belongs to the field of solid waste treatment. The method comprises the steps that the aluminum electrolysis anode scrap fine particulate matter is subjected to first-stage screening classification, and first-stage oversize products and first-stage undersize products are obtained; the first-section oversize product is subjected to first dense medium cyclone separation, and first gravity separation refined carbon and first gravity separation tailings are obtained; the first-section screen underflow is subjected to first spiral chute separation, and first refined carbon and first tailings are obtained; the first gravity separation tailings are subjected to second dense medium cyclone separation, and second gravity separation cryolite concentrate and second gravity separation tailings are obtained; the first tailings are subjected to second spiral chute separation, and second cryolite concentrate and second tailings are obtained; and the first gravity concentration refined carbon and the first refined carbon are combined to obtain refined carbon, and the second gravity concentration cryolite concentrate and the second cryolite concentrate are combined to obtain cryolite concentrate. According to the method, a reselection process more adaptive to the physical property of the anode scrap is introduced, and efficient separation of carbon-ash and cryolite-ash is achieved through the material density difference.
Owner:ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO +1

Non-ferrous metal recovery method and aluminum electrolyte carbon residue comprehensive utilization process

The invention provides a non-ferrous metal recovery method and an aluminum electrolyte carbon residue comprehensive utilization process, and relates to the technical field of metal recovery and utilization. A non-ferrous metal recycling method comprises the following steps that S1, pretreatment of raw materials is conducted, specifically, aluminum electrolyte is crushed and screened through a crusher to prepare carbon residue powder, the carbon residue powder and an alkaline compound are mixed according to the mass ratio and then put into a muffle furnace to be roasted, fluoride is converted into calcium fluoride, cyanide is converted into calcium cyanate, and roasted residues are generated; and S2, leaching treatment is conducted, specifically, the roasting slag in the step S1 is put into a constant-temperature water bath pot through a sulfuric acid solution to be leached. According to the scheme, enrichment of valuable metals such as aluminum and lithium can be finally achieved by leaching the roasting slag through sulfuric acid, impurities such as iron and aluminum are accurately separated from the leachate through a fractional precipitation method, calcium ions are selectively precipitated through oxalic acid, a high-purity lithium solution is finally obtained, a battery-grade lithium carbonate product is prepared after lithium precipitation, effective recovery and utilization of non-ferrous metals are achieved, and the method is suitable for industrial production. The energy is saved.
Owner:JIANGXI FEIYU NEW ENERGY TECH CO LTD

Method for preparing regenerated aluminum fluoride from aluminum electrolysis fluorine-containing solid waste

The invention relates to the field of aluminum electrolysis industrial solid waste resource recycling, in particular to a method for preparing regenerated aluminum fluoride from aluminum electrolysis fluorine-containing solid waste. The method comprises the following steps: crushing and grinding the fluorine-containing solid waste, and mixing the crushed and ground fluorine-containing solid waste with anhydrous aluminum sulfate, aluminum fluoride seed crystals and a carbonaceous additive; carrying out heating reaction on the mixture at 500-700 DEG C, washing with water, and filtering; and drying the filter cake to obtain a regenerated aluminum fluoride product. According to the method, the aluminum fluoride seed crystal is introduced to promote reaction conversion, the calcium sulfate byproduct is subjected to in-situ reduction removal by using the carbon additive, and the sodium is deeply removed through heat treatment and high-temperature distillation, so that the obtained regenerated aluminum fluoride product is high in purity and low in sodium and sulfur content, and can be directly reused in an electrolytic cell. According to the technical scheme, high-value utilization of the aluminum electrolysis fluorine-containing solid waste is achieved, and environmental and economic benefits are achieved.
Owner:ZHENGZHOU UNIV

Aluminum electrolysis crushed material filtering device

The utility model discloses an aluminum electrolysis crushed material filtering device, which relates to the technical field of filtering equipment, and comprises a machine body, a filter cartridge arranged in the machine body, a driving device arranged on the machine body and capable of driving the filter cartridge to rotate, a feeding pipe and a discharging pipe connected and communicated with the machine body, and a plurality of knocking devices arranged on the inner wall of the machine body, the knocking device comprises a knocking column movably arranged on the inner wall of the machine body, the knocking column can move in the direction close to or away from the filter cylinder, a triggering structure capable of triggering the knocking column to conduct knocking is arranged on the outer wall of the filter cylinder, and a collecting device capable of collecting smashed materials in the filter cylinder is further arranged on the machine body. The aluminum electrolysis crushed material filtering device provided by the utility model can prevent the filter cylinder from being blocked and can improve the filtering efficiency.
Owner:BAOTOU ALUMINUM CO LTD

Emergency air pick tool car for aluminum electrolysis

The aluminum electrolysis emergency air pick tool car comprises two car body supports, the two car body supports are horizontally arranged, a plurality of partition plates are evenly and fixedly connected between the two car body supports, one end of each car body support is fixedly connected with a handrail, the other end of each car body support is fixedly provided with a bottom plate, and the bottom plate is vertically arranged. The surface of the spacing plate is fixedly connected with a main placing rod; wheels are installed on the bottom face of the vehicle body support and connected through connecting rods. The main placing rod comprises two vertical placing rods and a horizontal placing rod, the two vertical placing rods are fixedly mounted on the surface of the spacing plate, and the horizontal placing rod is fixedly connected between the ends of the two vertical placing rods. The utility model has the beneficial effects of safe and reliable operation, stable loading, wide environment adaptation range and high transportation operation efficiency, can quickly reach the site of the maintenance working condition, shortens the maintenance time, and ensures the effective treatment of emergencies in the production process and the continuous operation of safe production.
Owner:GANSU DONGXING ALUMINUM

A device for assembling and disassembling an aluminum electrolytic anode

The utility model relates to aluminum electrolysis technical field, especially a kind of aluminum electrolysis anode assembly assembly and disassembly alignment device, including anode guide rod, support frame and several groups of alignment assembly, alignment assembly includes limiting piece and barrier, limiting piece is slidably connected on support frame, barrier is slidably connected on support frame, barrier and limiting piece slide towards opposite direction, anode guide rod is arranged between limiting piece and barrier, barrier and limiting piece are respectively abutted on both sides of anode guide rod, so that anode guide rod is perpendicular to ground surface.In the utility model, alignment assembly makes anode guide rod be connected with catenary conveyor easily, connect in vertical state, reduce the connection difficulty of both, also avoid residual anode to occur in the process of transportation Inclination, strengthen transportation quality.
Owner:YUNNAN YUNLV HAIXIN ALUMINUM CO LTD

Energy-saving building material production equipment and aluminum electrolysis overhaul slag recycling method

The application provides an energy-saving building material production equipment and an aluminum electrolysis overhaul slag recycling method. The application relates to the field of energy-saving building material production equipment, and the energy-saving building material production equipment comprises a base. The energy-saving building material production equipment provided by the application inputs roasting gas into a drying outer cylinder, drives a drying inner cylinder to rotate and tumble filter residue A through a drying motor, and performs drying, so that energy is effectively saved. The filter residue A after drying is input into a crushing box through a lifting conveyor belt, is crushed by crushing cutters, is sieved, is input into a mixing box through a discharge hopper, is mixed with mixed material, cement and lime to obtain the mixed material, the mixed material is pressed into no-burning bricks by pressing the mixed material into the first mold through an upper pressing die head and a lower pressing die head, meanwhile, the second mold synchronously completes filling to realize continuous production, the filter residue A is converted into the no-burning bricks, waste resource utilization is realized, and environmental pollution is reduced. The double molds work alternately, production is ensured to be uninterrupted, and overall productivity and economic benefits are improved.
Owner:YICHUN JIULING LITHIUM IND CO LTD

Process for preparing cement from aluminum electrolysis overhaul slag and waste anti-seepage material lithium extraction residue

The invention provides a process for preparing cement from aluminum electrolysis overhaul residues and waste anti-seepage material lithium extraction residues, and relates to the technical field of solid waste co-treatment and resource utilization, and the process comprises the following steps: mixing pretreatment: crushing and grinding mixed raw materials, adding a calcium-based fluorine fixing agent, and roasting to decompose cyanide and stabilize fluoride; preparing a cement raw material: mixing the mixed residues with other raw materials according to a certain ratio, adjusting the ratio value, and grinding to prepare the cement raw material; calcining the clinker, namely calcining the raw material at high temperature, treating flue gas, and quickly cooling to obtain the cement clinker; according to the invention, a carbonaceous material in the overhaul slag is utilized to provide part of heat, so that the energy consumption is reduced; fluorides in the two wastes react with each other to generate a more stable compound, so that the fluorine curing efficiency is improved, and the environmental risk is thoroughly eliminated; heavy metal is further solidified in a cement kiln high-temperature environment, harmless treatment is achieved, the resource utilization rate is increased, and product performance is reliable.
Owner:QINGHAI UNIV FOR NATITIES +2

Equipment for replacing aluminum electrolysis anode

The invention discloses equipment for replacing an aluminum electrolysis anode, and relates to the technical field of aluminum electrolysis anoders.The equipment comprises a main body rod, the lower end of the main body rod is provided with a bottom rod used for being attached to the bottom palm of a new electrode through a folding assembly, and a positioning sleeve rod is rotationally installed in the middle of the front end face of the main body rod; a movable sleeve rod is arranged at the front end of the positioning sleeve rod through a length adjusting assembly, and a connecting base is fixedly installed at the front end of the movable sleeve rod. The device is compact in overall structural design, all the components can be folded or unfolded on the main body rod, and therefore when the device is not used, the occupied space of the device can be reduced through folding, and carrying and storage are convenient. The device is in a fixed state during measurement and line drawing, too large errors caused by factors such as manual shaking are not prone to being caused, the line drawing accuracy and the measurement precision can be guaranteed, in the operation process, an operator does not need to hold the device to be close to the bottom palm for a long time, and overall operation is more convenient and saves labor.
Owner:QINGHAI BAIHE ALUMINUM IND CO LTD

Safe crust breaking device for aluminum electrolysis cell

The utility model relates to the technical field of aluminum electrolysis, and discloses an aluminum electrolysis cell safety crust breaking device which comprises a mounting plate serving as a bearing structure, lifting rods are arranged in the middles of the left end and the right end of the mounting plate in a penetrating mode, the lower ends of the lifting rods are connected with connecting rods through buffering structures, and threaded columns are fixedly connected to the bottoms of the connecting rods. Hammer heads are in threaded connection with the outer parts of the threaded columns; the side plates serve as connecting mechanisms, the bottom ends of the side plates are fixedly connected to the upper side of the mounting plate, and rotating shafts are rotationally connected to the upper ends of the side plates. According to the utility model, the lifting rod is pushed to reciprocate up and down, the connecting rod and the hammerhead are driven to move, crust breaking operation is carried out on the aluminum electrolysis cell, traditional cylinder transmission is replaced, cylinder stability reduction caused by high temperature is avoided, the safety of the device is improved, the positions of the first threaded block and the first shaft rod are adjusted, and the moving range of the lifting rod is adjusted; and adjusting according to requirements.
Owner:INNER MONGOLIA BAIYINHUA ALUMINUM & ELECTRICITY CO LTD

Foil cutting device for aluminum electrolytic capacitor processing

The utility model relates to the technical field of aluminum electrolytic capacitor processing, and discloses a foil cutting device for processing an aluminum electrolytic capacitor, the outside of a foil cutting roller is symmetrically provided with cutter rings, the inner sides of the cutter rings are symmetrically provided with guide blocks, and the outside of the foil cutting roller is provided with guide grooves which slide relative to the guide blocks; a cleaning mechanism is arranged at the position, close to the winding mechanism, of the upper surface of the foil cutting table, the cleaning mechanism comprises first mounting frames mounted on the upper surface of the foil cutting table, and a first cleaning plate and a second cleaning plate are arranged between the first mounting frames from top to bottom; and cleaning pads are arranged on the lower surface of the first cleaning plate and the upper surface of the second cleaning plate. And a cutter ring slides outside the foil cutting roller, and a second electric telescopic rod in a fixing groove works, so that a limiting rod moves outwards in the fixing groove, and then the limiting rod can be embedded into a limiting hole, and the adjusted cutter ring is fixed.
Owner:HUBEI MILANG XINGCHUANG ELECTRONICS CO LTD