192 results about "Copper slag" patented technology

The invention discloses a welding slag ladle for containing copper slag and a design method. The welding slag ladle is suitable for containing, cooling and inverted placing procedures of high-temperature copper slag. The cinder ladle comprises a cylinder body, a ladle bottom, rib plates, trunnions and supporting legs, the cylinder body and the ladle bottom are formed by welding high-temperature-resistant and high-strength rolled plates, the thickness of the cylinder body is 70-100 mm, and the thickness of the ladle bottom is 80-120 mm; setting an inclination angle beta of 11.5-21 degrees relative to the center line of the bus of the cylinder body, and controlling the roughness of the inner wall to be less than or equal to 12.5 microns so as to reduce the separation resistance after the copper slag is cooled; thickness combination, stress distribution, deformation and rib plate arrangement are optimized through structural mechanical simulation, and it is ensured that the structural strength meets the requirements under high temperature and thermal cycle loads; full penetration weld joints are adopted, nondestructive testing is carried out, and the welding reliability is guaranteed; compared with a traditional casting cinder ladle, the mass of the cinder ladle is reduced by 10%-15%, the deslagging efficiency is improved, the service life is prolonged to more than two times of the original service life, and the cinder ladle has the advantages of being light in structure, high in bearing capacity, high in deformation resistance and good in maintainability.

The invention discloses a preparation method of an iron-manganese bimetallic catalytic material by using copper slag. The preparation method comprises two steps of pretreating the copper slag and preparing the iron-manganese bimetallic catalytic material. The iron-manganese bimetallic catalytic material prepared by the method belongs to a porous material, is rich in pores and large in specific surface area, is rich in Fe < 3 + >, Mn < 3 + >, Mn < 4 + > and other active sites on the surface, has the advantages of high catalytic activity, good stability and environmental friendliness, and realizes reduction and high-value utilization of the copper slag. In addition, the prepared iron-manganese bimetallic catalytic material can be used for catalyzing persulfate to form an advanced oxidation system, and is suitable for degradation treatment of organic wastewater such as printing and dyeing wastewater, pharmaceutical wastewater, food wastewater and raffinate.

The invention provides a zinc-copper-nickel-copper smelting deslagging agent and a preparation method and a use method thereof. The zinc-copper-nickel-copper smelting deslagging agent comprises the following raw materials in percentage by mass: 5-15% of calcium fluoride, 20-30% of sodium carbonate, 5-15% of sodium fluoride, 10-20% of sodium hexafluoroaluminate and the balance of borax. Compared with the prior art, the zinc-copper-nickel-copper slag remover prepared by mixing the raw materials can effectively reduce impurities to be less than 0.14% of Fe, less than 0.005% of Pb and less than 0.003% of Si in the smelting process, the impurity components are obviously reduced, the number of times of component adjustment and unqualified sampling is reduced, impurities mixed in a casting blank are reduced, and finally the metal purity and the casting quality are improved. Meanwhile, loss of zinc and nickel is reduced to the maximum extent; and adverse effects on the zinc-copper-nickel alloy are avoided.

The invention discloses a method for preparing a NaFeO2 material and leaching copper, zinc and molybdenum from copper slag, and relates to the technical field of metallurgical solid waste resource utilization. The method comprises the following steps: grinding the copper slag, mixing the ground copper slag with a sodium salt, roasting the mixture in a muffle furnace at a proper temperature, and finally carrying out ultrasonic washing and filtering on the roasted product to obtain filter residues and filtrate; and drying filter residues to obtain a high-purity NaFeO2 material, and recovering valuable metals such as copper, zinc and molybdenum from filtrate. In the washing process, valuable metal elements copper, zinc and molybdenum in the copper slag are efficiently leached into the solution, the leaching rate reaches 96% or above, and synchronous recovery of the valuable elements is achieved; according to the method, the industrial waste residue copper slag is successfully converted into the NaFeO2 product with the high additional value, meanwhile, valuable metal is efficiently extracted, the method has the advantages of being simple in process, low in cost, high in recycling degree and environmentally friendly, a new way is opened up for high-value utilization of the copper slag, and the method has good industrial application prospects.

The invention discloses a multi-component magnesium refractory aggregate using copper slag flotation tailings as raw materials and a preparation method thereof, the multi-component magnesium refractory aggregate is obtained by using copper slag flotation tailings powder, light-burned MgO powder, magnesite powder and alpha-Al2O3 powder as raw materials through compression molding and calcination. The preparation method comprises the following steps: mixing the copper slag flotation tailing powder, the light-burned MgO powder, the magnesite powder and the alpha-Al2O3 powder in a mixer to obtain mixed powder; adding a binding agent solution into the mixed powder, and performing mechanical pressing to obtain a green body; and heating the formed green body to 950-1150 DEG C, preserving heat for 4-6 hours, finally heating to 1480-1580 DEG C, preserving heat for 4-6 hours, cooling, crushing, and screening to obtain the multi-component magnesium refractory aggregate. According to the method, the copper slag flotation tailing powder is used as the raw material, resource utilization of the copper slag flotation tailings is achieved, and the obtained multi-component magnesium refractory aggregate is suitable for a cement rotary kiln.

The invention relates to the field of building materials, and particularly discloses a high-ductility cement-based composition with wave-absorbing performance and a preparation method thereof, the high-ductility cement-based composition comprises the following raw materials: cement, sand, water, copper slag, a ferrite-copper slag compound, fly ash, mineral powder, an additive, modified carbon fiber loaded with mica powder-modified waste rubber powder composite filler, and PE fiber; the ferrite-copper slag compound is prepared by mixing iron-containing electroplating sludge and iron salt, adding water to form slurry, adding copper slag and calcium oxide into the slurry, performing high-temperature oxidation treatment in an air atmosphere, and crushing; the preparation method comprises the following steps: mixing the cement, the sand, the copper slag, the ferrite-copper slag compound, the fly ash and the mineral powder, adding the modified carbon fiber loaded with the mica powder-modified waste rubber powder composite filler and the PE fiber, and stirring to prepare a primary mixture; and mixing the admixture with water, adding the primary mixture, and stirring to obtain the concrete. The preparation method has the characteristic of preparing the cement-based material with high ductility and wave-absorbing property.

Aiming at the problem of low resource utilization value of the existing copper slag, the invention discloses a method for resourceful treatment of the copper slag, through a pyrogenic process and wet process mineral separation coupling method of high-temperature reduction, selective corrosion, magnetic-gravity combined separation and selective leaching, the transformation form and trend of key elements are accurately regulated and controlled, and the utilization rate of the copper slag is improved. The purposes of extracting lead, zinc, iron, copper and silicon elements in the copper slag step by step and converting the elements into corresponding high-value products are achieved. In addition, through process optimization and improvement, a low-temperature reaction system and a reagent cyclic regeneration mechanism are adopted, energy and chemical consumption is effectively reduced, generation of secondary hazardous waste is basically eradicated, and a new solution path is provided for green, high-value and efficient utilization of metallurgical solid waste.

The invention discloses a method for efficiently extracting iron from copper slag through non-molten hydrogen reduction, and belongs to the technical field of green resource utilization of metallurgical solid waste. Hydrogen is introduced to carry out reduction roasting on copper slag pellets, and a reduction auxiliary is added in a matched mode to dissociate fayalite in the copper slag; the purposes of strengthening the hydrogen reduction effect and improving the metal iron reduction rate are achieved, magnetite, fayalite and iron elements in other iron-containing silicate phases in the copper slag are reduced into metal iron, meanwhile, reduction products are treated through ore grinding and magnetic separation, and the iron ore concentrate grade is effectively improved. The method has the characteristics of simple reduction process and low carbon emission, and has high economic benefits.

The invention discloses a tellurium copper slag comprehensive treatment technology and a multi-element collaborative recovery method, and relates to the technical field of non-ferrous metal metallurgy and solid waste recycling, and the tellurium copper slag comprehensive treatment technology comprises the following steps: pretreatment and arsenic volatilization removal, selective acid leaching copper extraction, tellurium enrichment through alkaline oxidation, tellurium reduction and arsenic recycling. According to the method, by combining the advantages of a wet process and a pyrogenic process, the defects that in the prior art, arsenic cannot be effectively recycled in the tellurium-copper slag treatment process and the process is complex are overcome, efficient copper and tellurium separation is achieved through coordinated regulation and control of an acid / alkali medium and an oxidizing agent, arsenic is recycled in an industrial raw material form, and the limitation that only tellurium and copper are concerned in a traditional process is broken through.

The application provides a method for promoting selective reduction of Fe3O4 in copper slag by carbon-containing anode through electrochemistry, which comprises the following steps: weighing a certain amount of dry and finely ground copper slag and placing the copper slag in a crucible, transferring the crucible with the copper slag into a leaner electric furnace, and heating the copper slag to a specific reaction temperature at a speed of 10 DEG C / min to obtain molten copper slag; then inserting a pretreated graphite anode and an inert high-melting point metal cathode, and inputting a certain voltage to perform electrochemical regulation; after power-off, the sample is placed for a period of time, and the sample is cooled to room temperature with the furnace; and the obtained sample has copper matte in the lower layer and molten slag tailings in the upper layer. The application uses a carbon-containing anode to replace coal powder in combination with electrochemical regulation, which can not only make the carbon-containing anode penetrate into the interior of the copper slag and increase the reducible depth of the molten slag, but also ensure the continuous work of the carbon-containing anode by the intervention of the electrochemical method, thereby solving the problem of low utilization rate of coal powder in the reduction of copper slag in industry.

The utility model provides an anti-backflow device for an etching line pipeline, which relates to the technical field of PCB (printed circuit board) processing, is used for being mounted on a parallel pipeline and comprises an external pipe body, one end of the external pipe body is a water inlet end, and the other end of the external pipe body is a water outlet end. And the water inlet end and the water outlet end are detachably connected with the parallel pipeline at the same time, that is, when more foreign matters such as copper slag are retained in the parallel pipeline, the whole parallel pipeline does not need to be dismantled, and only the external pipe body needs to be dismantled from the parallel pipeline, so that the defect that time and labor are wasted when the whole pipeline is dismantled is overcome, and daily maintenance is simplified. The filtering assembly is arranged in the external pipe body, the liquid medicine discharging opening is formed in the external pipe body, liquid medicine can be discharged outwards through the liquid medicine discharging opening after being filtered by the filtering assembly, and the backflow phenomenon of the liquid medicine is avoided.

The invention belongs to the technical field of industrial solid waste recycling and filling materials, and particularly discloses a method for improving pozzolanic activity of water-quenched copper slag through synergistic modification of magnetic separation iron removal, which comprises the following steps: adding CaO into molten copper slag discharged in a copper smelting process, uniformly mixing, reacting in an oxygen-containing atmosphere, and then carrying out water quenching and quenching to obtain the pozzolanic activity of the water-quenched copper slag. Modified copper slag particles are obtained; the modified copper slag particles are subjected to wet grinding and drying, and modified copper slag powder is obtained; and the modified copper slag powder is subjected to magnetic separation, and magnetic iron ore concentrate and non-magnetic tailings are obtained. The prepared non-magnetic tailings replace part of cement to prepare the auxiliary cementing material with high pozzolanic activity. Through the synergistic effect of CaO modification and a magnetic separation iron removal process, the pozzolanic activity of the water-quenched copper slag is remarkably improved. The method is simple and convenient in process, the high value-added application way of the water-quenched copper slag is effectively widened, the resource utilization rate is increased, and the method has important significance on promoting comprehensive utilization of solid waste and environmental protection.

The invention provides a process for comprehensively recovering copper, cadmium and cobalt from zinc smelting purification slag, the process for comprehensively recovering copper, cadmium and cobalt from zinc smelting purification slag comprises the steps of pretreatment, copper extraction, cobalt extraction and cadmium replacement, efficient separation and recovery of copper, cadmium and cobalt in the purification slag are achieved, and the metal recovery rate is larger than or equal to 95%; high-grade copper slag (Cu > = 80%), cobalt slag (Co > = 30%) and cadmium slag (Cd > = 90%) are produced and can be directly sold as smelting raw materials; the method is simple in process, conventional in reagent, mild in operation condition and suitable for industrial application; and waste liquid can be recycled, environmental pollution is reduced, and the green metallurgy concept is met.

This invention discloses a method and apparatus for extracting copper, manganese, and cobalt from copper-containing materials. The method includes: sulfuric acid reduction leaching; iron removal from the leaching solution; copper extraction from the iron-removed solution; electrowinning of the copper solution obtained after organic reverse extraction to obtain electrowinning copper; open-circuiting the leaching residue for manganese and cobalt separation to obtain manganese slag and cobalt products that can be used as manganese products; and returning the cobalt precipitate and copper slag produced during the separation process to the sulfuric acid reduction leaching process. Using this invention for copper, manganese, and cobalt extraction avoids the introduction of impurities, achieves good separation results, yields high-purity products, and high yields of each metal. It avoids the complex pretreatment processing steps for cobalt products, ensures stable operation of the copper extraction and electrowinning processes, and reduces extractant consumption and electrowinning energy consumption.

The invention discloses a method for producing cuprous oxide by utilizing low-grade purified copper slag in a zinc hydrometallurgy process, and belongs to the technical field of purified copper slag. The invention relates to a method for producing cuprous oxide by utilizing low-grade purified copper slag in a zinc hydrometallurgy process. The method mainly comprises the following steps: acid leaching and impurity removal; the pre-leached filter residues are mixed with dilute sulphuric acid, air is introduced to serve as an oxidizing agent for oxidation leaching, after leaching, the pH is adjusted to 4.0-5.0 through CaCO3, and copper-containing leaching liquid is obtained through filtering; adding dextrose monohydrate into the copper-containing leachate, and adjusting the pH value by using NaOH; according to the method, through the closed-loop process of acid presoaking impurity removal, air oxidation leaching, glucose reduction and cuprous oxide Cl <-> removal, conversion from harmless treatment to resource high-value utilization of the low-grade copper slag is achieved, air is used for replacing KMnO4, MnO2 and other chemical oxidants, the cost is reduced, no harmful by-product exists, the green metallurgy requirement is met, and the method is suitable for industrial production. The prepared cuprous oxide is directly used for removing Cl <-> from a supernatant in electrolytic zinc, and the double contradiction of copper slag dilution and high cost of a Cl <-> removing agent in the industry is solved.

This invention relates to the field of PCB board technology, specifically to a lateral compensation processing method for back-drilling interconnected holes and a PCB board. The processing method includes the following steps: S1, fabricating a lamination board, drilling holes in the lamination board to obtain through holes, forming a copper layer on the hole wall of the through holes, and electroplating the copper layer on the hole wall with tin; S2, first back-drilling the first conductive hole to obtain a first back-drilled hole, and then back-drilling the second conductive hole to obtain a second back-drilled hole; S3, drilling connecting grooves at adjacent positions of the first and second back-drilled holes to connect the first and second back-drilled holes, completing the back-drilling; S4, performing micro-etching on the lamination board after back-drilling to remove back-drilled copper slag and burrs from the hole openings, and then performing a tin stripping process on the tin layer inside the conductive holes; S5, simultaneously filling the first and second back-drilled holes with resin, drying and curing the resin, and then grinding the resin overflowing from the hole openings.

The invention discloses a copper slag derived microsphere composite catalyst which is prepared by the following steps: crushing and screening dried copper slag, mixing copper chloride and the copper slag, adding the mixture into an oxalic acid solution, uniformly stirring and mixing to obtain slurry, dropwise adding the slurry into silicone oil, stirring to form balls, aging at 55-65 DEG C for 12 hours, collecting the balls, and calcining at 500-600 DEG C for 2-4 hours to obtain the copper slag derived microsphere composite catalyst. And putting the calcined product into a thioacetamide-ethylene glycol solution, uniformly mixing, carrying out a hydrothermal reaction at 150-170 DEG C for 12 hours, carrying out solid-liquid separation, and drying the solid, the catalyst disclosed by the invention shows excellent PMS activation and degradation effects on oxytetracycline hydrochloride, tetracycline hydrochloride, chlortetracycline hydrochloride, methylene blue and methyl orange; the invention provides a new solution for solving the problem of secondary pollution caused by the copper slag and the problem of water environment pollution caused by antibiotic organic pollutants.

The utility model relates to copper pipe processing technical field, and disclose a kind of high-power laser cutting copper pipe anti-perforation slag removal device, solve the problem that current high-power laser cutting is prone to perforation when being carried out to copper pipe, it includes mounting plate, the bottom of mounting plate is equipped with cutting mechanism, fixed mechanism is equipped on cutting mechanism, cutting mechanism includes the U type round pole fixed in the bottom of mounting plate, the outside of U type round pole is movably sleeved with lifting plate, cylinder is fixedly installed between lifting plate and mounting plate, the bottom of lifting plate is fixedly connected with U type plate, and the bottom of U type plate is fixedly installed with laser cutting head;The utility model can blow nitrogen to cutting point, it is convenient to blow away slag and cool incision, to inhibit the perforation caused by excessive ablation, and cooperate between suction frame, hose one, dust collector, connecting pipe, exhaust pipe and filter frame, to facilitate copper slag is extracted and filtered.

This application belongs to the field of non-ferrous metal metallurgy and resource comprehensive utilization technology, and more specifically, relates to a method and system for air quenching liquid copper smelting slag based on heat preservation and slow cooling. This application uses compressed air or compressed waste nitrogen to air quench liquid copper smelting slag that has undergone heat preservation and slow cooling to achieve copper particle agglomeration and growth. This significantly shortens the processing time and achieves centralized and efficient recovery of waste heat. Simultaneously, it reduces the amount of slag bag used and the required site area. Furthermore, the copper slag particles obtained from air quenching are small in size and the copper-containing particles are fully grown, eliminating the need for multi-stage crushing processes. After ball milling, it can be used for mineral processing and recovery, significantly shortening the mineral processing flow and reducing the difficulty of mineral processing.

The application relates to the technical field of waste resource utilization and environment functional material preparation, and specifically discloses a preparation method of a manganese oxide loaded copper residue based persulfate hydrogen salt activator. The activator is prepared by taking copper pyrogenic smelting waste residue as a main carrier, taking manganese sulfate monohydrate as a manganese source, and additionally taking ammonium chloride and ammonia water. The preparation method comprises the following steps: grinding the copper residue, mixing and dispersing the copper residue with a precursor solution, carrying out intermittent ultrasonic assisted high-energy ball milling, in-situ precipitation, gradient flow aeration oxidation, magnetic sedimentation washing and vacuum low-temperature drying to obtain the finished product. The activator can be used for degrading tetracycline, phenol and bisphenol A type refractory organic wastewater. The active component is firmly combined with the carrier, the catalytic activity is high, the recycling stability is good, and the heavy metal leaching amount is low. The preparation method is simple in process and mild in condition, realizes high-value utilization of copper residue solid waste, is low in preparation cost, and is easy to realize large-scale production.

The utility model relates to recycling device technical field, concretely is a kind of copper slag recycling device for copper art processing, including box, support seat, apron and auxiliary mechanism, the support seat is arranged in the box bottom, the support seat is equipped with several, the box bottom center is equipped with discharge assembly, the apron is connected with the box by the auxiliary mechanism, the apron top is equipped with crushing assembly, the apron top one side is equipped with feeding assembly, the auxiliary mechanism includes sliding assembly, long plate, bolt, motor, connecting block, limit block, connecting rod and crushing knife, the sliding assembly is arranged in the box side, the long plate is connected with the sliding assembly by the bolt, the motor is set up on the long plate, the motor output end is connected with the connecting block center, a kind of copper slag recycling device for copper art processing of the utility model, solves the problem of the present equipment crushing effect poor.

The application discloses a low-carbon high-performance cement clinker and a preparation method thereof, and relates to the technical field of building materials, in particular to a low-carbon cement clinker and a preparation method thereof. The raw materials in the cement clinker include the following components in percentage by weight: 75-90% of raw material, 5-20% of steel slag and 2-8% of a conditioning material, wherein the conditioning material includes at least two of lead-zinc slag, copper slag, manganese slag and lithium slag. The lead-zinc slag in the conditioning material contains 0-5.5% of ZnO in percentage by weight; the copper slag contains 0-2.0% of CuO in percentage by weight; the manganese slag contains 0-7.0% of MnO2 in percentage by weight; and the lithium slag contains 0-3.0% of Li2O in percentage by weight. The application adds the conditioning material, ensures the content of zinc, copper, manganese or lithium in the cement clinker, realizes the purposes of stabilizing R-type tricalcium silicate and improving the strength of the cement clinker, does not add components such as fluorine and sulfur which pollute the environment, is environmentally-friendly, safe and reliable, and has a wide source of raw materials and strong applicability.

The utility model discloses a kind of residual pole copper residue transfer shuttles, comprising: carrier;Several L-shaped brackets are set on the carrier;Limiting cavity, several L-shaped brackets and the two side supporting plates set on the carrier are collectively enclosed to form limiting cavity.The utility model is simple in structure, limiting cavity is formed by being collectively enclosed by multiple L-shaped brackets and two side supporting plates, limiting of three sides in four sides of residual pole copper residue is realized, so that effectively prevent the phenomenon of residual pole copper residue falling in the process of sudden braking or sudden stop, in addition, the design of sealing plate can prevent residual pole copper residue from falling inside equipment, damage equipment.

The invention relates to the technical field of precious metal extraction, in particular to a method for enriching platinum and palladium from a material containing high copper and sulfur. Oxidizing roasting; leaching with hydrochloric acid; copper precipitation treatment and ammonium chloride precipitation. In the oxidizing roasting stage, roasting is conducted in the oxygen atmosphere, the interference of sulfur on follow-up platinum and palladium enrichment is effectively reduced, a pretreated material and lead oxide are mixed according to the specific mass ratio, platinum and palladium elementary substances are converted into composite oxide easily dissolved in hydrochloric acid, and follow-up leaching of platinum and palladium is facilitated; in the hydrochloric acid leaching link, platinum, palladium and copper in the roasted product are fully dissolved, and the metal leaching rate is increased; during copper deposition treatment, iron powder is added according to the accurate molar ratio of the iron powder to copper ions, the copper ions are converted into copper slag precipitates, and efficient separation of copper, platinum and palladium is achieved; in the ammonium chloride precipitation step, ammonium chloride is accurately added according to the total molar weight of platinum and palladium in the filtrate, so that platinum and palladium are fully precipitated, and crude platinum and palladium products are obtained.

The present application relates to steel and non-ferrous smelting slag comprehensive recovery and iron-making resource utilization comprehensive utilization technical field, disclose a kind of copper slag efficient iron-making method based on magnetic separation pretreatment, comprising: to molten iron-silicate base waste slag input by calcium carbide, sodium fluoride and phosphorus component consisting of conditioning agent, using sodium fluoride to build liquid diffusion field exposure reduction interface, induce calcium carbide and iron silicate in situ reduction to generate metal iron core;Heat treatment promotes iron core polymerization growth;Gradient cooling, using phosphorus component induces silicate matrix crystal transformation to generate expansion stress and break matrix;Grinding powder and weak magnetic separation, extract magnetic enrichment product, the present application breaks iron-oxygen-silicon chemical bond, realizes the conversion of combined state iron to independent metal state, achieves iron and gangue phase decoupling, using endogenous stress induction self-pulverization, reduce grinding energy consumption, output high-grade iron powder and simultaneously remove sulfur zinc impurities.

The invention provides a ternary iron-lithium fully-compatible integrated circulation treatment method and system application, and the method comprises the following steps: mixing lithium iron phosphate black powder and ternary material black powder, carrying out first acid leaching, carrying out primary copper removal on a first acid leaching solution, carrying out a mixed reaction on a copper-removed solution, an oxidizing agent and a crystal inhibition dispersant, and carrying out secondary acid leaching on a second acid leaching solution; first ferrophosphorus slag and dephosphorized liquid are obtained; the crystal inhibition dispersing agent comprises an organic phosphonic acid compound; performing iron and aluminum precipitation on the phosphorus-removed liquid to obtain iron and aluminum slag and iron and aluminum-removed liquid; the first ferrophosphorus slag and the iron-aluminum slag are subjected to alkali dissolution, second ferrophosphorus slag and aluminum-containing liquid are obtained, the second ferrophosphorus slag is subjected to acid dissolution, and ferrophosphorus liquid is obtained; and performing secondary copper removal on the iron and aluminum removed liquid to obtain a pre-extraction liquid and copper slag, and extracting the pre-extraction liquid to obtain a nickel salt solution, a cobalt salt solution and a lithium salt solution. Various wastes such as battery powder, pole piece powder, slurry and the like of the ternary lithium battery and the lithium iron phosphate battery can be fully compatible and integrally recycled.

The application belongs to the technical field of low-carbon cement materials, and particularly relates to a low-carbon production process and system of high belite cement clinker, wherein the low-carbon production system comprises a raw material pretreatment module, a clinker firing module, a flue gas control module and a product detection module; in the application, traditional limestone and paper mill filter residue are used as calcium raw materials, coal cinder and coal gangue are used as aluminum / silicon raw materials, phosphogypsum is used to completely replace natural gypsum as sulfur raw material, copper residue is used to adjust iron material, and finally, calcium fluoride sludge is used to replace fluorite, so that the effective utilization of solid waste is improved, resources are saved, and the adverse effects of solid waste on the surrounding environment are reduced; in the calcination process, low-temperature staged calcination is adopted, the calcination temperature is controlled to be 1200-1300 DEG C, and staged temperature rising is adopted; compared with the traditional portland cement calcination temperature, the temperature is 50-100 DEG C lower, energy consumption and carbon dioxide emission are effectively saved, and the theme of energy saving and environmental protection is met.

This invention discloses a high-temperature copper slag treatment system and its slag covering device. The slag covering device includes a slag cover, a water-cooled wall, and a heat pipe assembly. The slag cover is a hollow structure with openings at the top and bottom. The water-cooled wall is fixedly installed on the inner wall of the slag cover, and the slag cover has an inlet and an outlet communicating with the water-cooled wall. The heat pipe assembly is installed inside the slag cover, and the heat pipe assembly includes heat pipes. The evaporation section of the heat pipe is located near the lower end of the slag cover, and the condensation section of the heat pipe is located near the upper end of the slag cover. Using this solution, after the slag cover device covers the slag, cooling air can be delivered to the working position of the slag through the inlet air duct. Simultaneously, during the flow of cooling water within the water-cooled wall, heat from the high-temperature copper slag on the surface of the slag is absorbed through radiation heat transfer, and the heat from the copper slag inside the slag is discharged through the heat pipes inserted in the slag. Overall, waste heat recovery is achieved through both water-cooled radiation heat exchange and air-cooled convection heat exchange, resulting in a high heat recovery rate.

The utility model relates to a multi-layer efficient thickener for copper slag beneficiation, which comprises a plurality of layers of thickeners arranged along the longitudinal direction, the thickeners on each layer have the same structure, and a sealing device is arranged between the thickener on the upper layer and the thickener on the lower layer; each layer of thickener comprises a charging barrel, a conical hopper is arranged at the lower end of the charging barrel, a working platform is arranged in the center of the top end of the charging barrel, a liquid distribution mechanism is arranged in the center below the working platform, the liquid distribution mechanism comprises a cylinder, an annular liquid distribution plate is arranged in the cylinder, and a spiral flow guide groove is formed in the liquid distribution plate; a feeding pipe arranged in the radial direction is arranged below the working platform, one end of the feeding pipe is connected to an upstream ore pulp output port, the other end of the feeding pipe extends into the cylinder and is provided with a flow dividing connector, and an outlet of the flow dividing connector is aligned to the liquid distribution plate; two groups of flocculation stirring mechanisms are also arranged below the working platform and deviate from a central shaft of the charging barrel; the solid-liquid separation effect is obviously improved, the copper slag mineral separation efficiency can be obviously improved, the energy consumption is reduced, and the occupied area is reduced.

The application discloses a kind of based on the fixed-point addition of reducing agent of ladle and its device, including the following steps: a. phase analysis;B. calculate the amount of reducing agent;C. input reducing agent;D. sampling and detection;E. effect evaluation;F. fixed-point addition device is fixed-point fixed-speed input reducing agent.The application can add solid reducing agent to the ladle slag drop point by fixed-point addition device, ensure that reducing agent and copper slag are fully contacted and mixed, by adding reducing agent in the ladle, the problem of copper alloy impregnation furnace bottom brick joint caused by adding in the furnace can be avoided, which leads to the arching of brick body, significantly improve the stability of flash furnace operation, prolong the service life of equipment, reduce maintenance cost and unplanned shutdown risk, ensure production safety, and without large-scale modification of flash furnace body, overall operation is simple, stable and reliable, and has wide industrial application prospect.