75 results about "Lead smelting" patented technology

The invention relates to the technical field of wastewater treatment, in particular to a multi-stage treatment method and system for lead smelting wastewater. The method comprises the following steps: acquiring water quality data of the multi-source lead-acid storage battery smelting wastewater, and based on the water quality data, analyzing to obtain a battery wastewater multiphase feature set; on the basis, the information of the stabilized intermediate water body is obtained by dynamically adjusting the hydrogen ion concentration, breaking a complexing structure and preferentially separating fluoride; on the basis, the antimony valence state and the antimony concentration are monitored in real time, the oxidizing agent type and the reaction intensity are matched in a self-adaptive mode, oriented efficient conversion of antimony is achieved, and low-antimony pre-sedimentation water outlet information is obtained; on the basis, according to the dynamic proportion of the inlet water hydrogen ion concentration to the lead and antimony ions, a precipitation path control instruction is automatically switched, a purified water body with lead and antimony synchronously and deeply removed is obtained, and a lead smelting wastewater multi-stage treatment log is output. Harmful pollutants in the lead smelting wastewater process are efficiently removed, the method adapts to water quality fluctuation, consumption reduction and cost saving are achieved, compliance treatment of wastewater is achieved, and environment-friendly and economic values are achieved.

The invention discloses a secondary lead smelting high-temperature flue gas waste heat recycling device, and belongs to the technical field of waste heat recovery, the secondary lead smelting high-temperature flue gas waste heat recycling device comprises a vertical frame, an outer ring cylinder and a center cylinder concentrically arranged in the outer ring cylinder, and the bottom of the center cylinder is connected with a dust hopper for flue gas coarse dust removal; an annular cavity between the outer annular cylinder and the center cylinder forms a heat exchange water area, and multiple rows of heat exchange pipes are annularly arranged in the heat exchange water area. The core of the invention lies in that a three-stage heat exchange path is constructed, flue gas is settled in the central cylinder from bottom to top and subjected to primary heat exchange, and then flows through all heat exchange tubes from top to bottom and then from bottom to top in sequence, so that efficient cascade heat exchange is realized; steam generated by the system is creatively utilized to drive a turbine mechanism, shovel strips in all heat exchange pipes are driven to rotate synchronously, and online self-cleaning is achieved; the alkali spraying mechanism is arranged at the top of the central cylinder, acid gas is neutralized from the source, and corrosion is effectively prevented; according to the invention, the integration of sedimentation, deacidification, heat exchange and self-deashing is realized, and the problems of large occupied area, easiness in blockage, low efficiency and serious corrosion of a traditional system are solved.

The utility model discloses a lead melting furnace with a dual-seal lead discharging structure, which relates to the technical field of lead melting and comprises a furnace body and a lead discharging component, the lead discharging component comprises a sealing rod and a lead discharging pipe, the lead discharging pipe is welded at the bottom of the furnace body, and a sealing ball plug is fixed at the liquid outlet end of the lead discharging pipe through a flange. A detachable liquid inlet die sleeve is fixed to the liquid inlet end of the lead discharging pipe, and a conical inclined face is arranged at the upper end of the liquid inlet die sleeve. The sealing rod is vertically arranged over the liquid inlet end, the upper end of the sealing rod penetrates out of the furnace body, the sealing rod is controlled to move up and down, and a sealing ball head matched with the conical inclined face is fixed to the lower end of the sealing rod. According to the lead melting furnace, on the premise that a valve is omitted, the lead discharging structure which is better in sealing performance, better in abrasion resistance and easy to replace is designed, and therefore the sealing effect of the lead discharging structure of the lead melting furnace can be effectively improved, and the service life of the lead discharging structure can be effectively prolonged; the technical problems that due to the fact that a valve of a lead placing assembly in a lead smelting furnace is prone to being damaged, the service life is short, lead liquid is prone to leaking, and safety accidents are prone to being caused are solved.

The invention discloses a method for recovering copper from high-arsenic matte and enriching arsenic and lead. The method comprises the steps that the high-arsenic matte and quartz sand are fully mixed according to a first set proportion and then added into a smelting furnace; natural gas and oxygen are continuously introduced into the smelting furnace for a heating smelting reaction, air is continuously blown in the heating smelting reaction process, and slag is discharged once every set time; and after slagging is completed, limestone is added to remove arsenic, meanwhile, the temperature in the smelting furnace is gradually increased to 950 DEG C, the temperature in the smelting furnace is kept at 950 DEG C till the content of arsenic in the materials is smaller than 1%, at the moment, arsenic enters smoke, and ash is produced after dust collection. According to the method provided by the invention, the high-arsenic matte obtained through treatment in a lead smelting enterprise can be recycled in a targeted manner, so that lead, antimony, gold, silver, arsenic and the like in the high-arsenic matte are recycled after being classified, and the aims of deeply treating the high-arsenic matte and enriching and extracting various valuable metal elements in a classified manner are fulfilled.

The invention relates to a system and a method for recovering lead, tin and iron in water-quenched slag based on lead electrolysis of waste silicofluoride acid and secondary lead smelting. The system for recycling lead, tin and iron in the lead electrolysis waste silicofluoride acid and secondary lead smelting water quenching slag comprises a dissolving mechanism and a plurality of separating mechanisms arranged on the outer side of the dissolving mechanism, and the dissolving mechanism comprises a dissolving tank, a stirring assembly arranged in the dissolving tank and a temperature adjusting assembly arranged on the dissolving tank; and after the waste silicofluoride acid and the water-quenched slag are filled into the dissolving tank for reaction, the waste silicofluoride acid and the water-quenched slag are sequentially introduced into each separation mechanism for solid-liquid separation and precipitation reaction. The method for recycling lead, tin and iron in the water-quenched slag based on lead electrolysis of waste silicofluoride acid and secondary lead smelting comprises the following steps of a grinding procedure, a dissolving procedure, a separating procedure and a recycling procedure on the basis of the recycling system. The method solves the problems that solid and liquid waste in existing secondary lead smelting cannot be synergistically recycled, the recycling system and process are complex, the treatment difficulty is large, and the cost is high.

The invention relates to the technical field of lead smelting furnace manufacturing, in particular to a production process of a cylindrical lead smelting furnace body, which comprises six steps of bolt assembly fixation, thermocouple support installation, thermal insulation layer laying, electromagnetic heating coil winding, high-temperature-resistant wrapping treatment and reinforcing rib interference treatment, and solves the defects in the prior art. For example, assembly deviation caused by the fact that the position relation between a thermocouple support and a wire clamping groove is not optimized, operation errors caused by lack of reference points in the coil winding process and influence of interference of reinforcing ribs on coil layout are improved, the manufacturing precision of the furnace body is improved, and the heating performance and reliability of the furnace body are remarkably improved. And a brand new solution is provided for production of the cylindrical lead smelting furnace body.

The invention relates to a waste lead storage battery low-carbon recovery system and a recovery process thereof. The system comprises a waste battery pretreatment unit, a crushing and sorting unit and a lead smelting unit. The waste battery pretreatment unit is provided with a waste battery storage chamber, a discharge chamber, a gas collection chamber and a to-be-crushed chamber which are communicated in sequence, and is used for waste battery storage, residual electricity electrolysis hydrogen production and temporary storage; the crushing and sorting unit comprises a multi-stage crusher, a screening machine, a sorting machine and a filter press, and is used for separating to obtain a lead grid, a lead alloy block, light plastic, heavy plastic and waste lead paste. The lead smelting unit comprises a gas-liquid separation tank, a gas mixing tank and a side-blown furnace, gas generated by electrolytic hydrogen production is purified and dried and then mixed with natural gas to form mixed gas, the mixed gas serves as fuel of the side-blown furnace, and the waste lead paste is subjected to reduction smelting in the side-blown furnace to obtain lead bullion. According to the system, by-products of hydrogen production through electrolysis of waste battery residual electricity serve as smelting fuel, low-carbon environment-friendly recycling treatment of the waste lead storage battery is achieved, and the resource utilization rate is increased.

The invention discloses a multi-process treatment system for lead smelting smoke dust, and belongs to the field of lead smelting. The device comprises a winding cooling pipe arranged in a guide plate fixedly arranged in the bag type dust collector, the overall temperature of the cooling pipe is guaranteed through flowing of cooling liquid in the cooling pipe, then the overall temperature of the guide plate is guaranteed, temperature exchange with smoke introduced into the bag type dust collector is carried out through the guide plate, and the cooling effect is improved. Meanwhile, the surface of the bag type dust collector is provided with a circulating port, and the temperature of the smoke dust in contact with the filter bag is reduced through the water pumping port, the water pump, the water inlet pipe, the cooling pipe, the overflow pipe and the circulating port, so that the temperature of the smoke dust in contact with the filter bag is further reduced, and the influence of the smoke dust on the service life of the filter bag is reduced; cooling liquid can circulate in the bag type dust collector and the guide plate, after the cooling liquid flows into the bag type dust collector, the heat dissipation area is increased, rapid cooling can be achieved, and the cooling liquid enters the guide plate subsequently, so that the heat exchange effect can be guaranteed.

The invention relates to the technical field of tin recovery and treatment devices, and discloses a device for recovering and treating tin in lead smelting slag, which comprises a support frame, a reduction smelting electric furnace and a cover plate driven by an electric telescopic rod. According to the device, three graphite electrodes are adopted to generate 1300-1500 DEG C high-temperature electric arcs for smelting, and tin slag separation is achieved through an innovative layered isolation assembly. The assembly comprises a liftable sliding outer rod, a liftable sliding inner rod, an upper bushing plate and a lower bushing plate, the upper bushing plate and the lower bushing plate are connected with the sliding outer rod and the inner rod respectively, the upper bushing plate and the lower bushing plate can rotate relative to each other, a liquid level detection electrode detects the position of an interface, and a servo motor drives a gear rack mechanism to achieve high-precision positioning. The slag discharging system adopts the design of a movable material plate capable of being obliquely adjusted and is matched with a micro telescopic rod to control discharging. The tin recovery rate of 93.5% or above is achieved, the tin content of waste residues is lower than 0.8%, the deslagging efficiency is improved, and the problems that separation is not thorough, and blockage is prone to occurring in a traditional process are solved.

The utility model discloses an automatic feeding device in alloy lead smelting process, including bottom plate and smelting furnace, the top of bottom plate is installed with smelting furnace, the top of bottom plate one side of smelting furnace is installed with support frame, the top sliding installation of support frame has the moving plate, the top of smelting furnace is installed with the connecting frame, is installed on the outer wall of connecting frame and has the broken frame, the top symmetry of moving plate one side's support frame is installed with servo motor. The utility model not only has realized that alloy lead convenient height adjustment of feeding device to alloy lead, has facilitated that alloy lead convenient mobile conveying of feeding device to alloy lead, has facilitated that alloy lead convenient inclined automatic feeding of feeding device to alloy lead, has improved the security of alloy lead feeding of feeding device to alloy lead, and avoid due to alloy lead size too big and cause smelting time's extension, has improved alloy lead smelting efficiency, has reduced the loss of energy.

The utility model belongs to the field of casting machines, particularly relates to a casting machine for electric lead casting molding, and aims to solve the problems that impurities in lead liquid are cleaned by a manual hand-held tool in the prior art, high-temperature danger is caused in the cleaning process, and the automation degree of a casting process is reduced. Collecting bins are fixedly connected to the two sides of the conveyor, the same U-shaped frame is fixedly connected to the two sides of the conveyor, a connecting frame is arranged below the U-shaped frame, the top of the connecting frame slides in the U-shaped frame, a cleaning frame is arranged below the connecting frame, a connecting rod is fixedly connected to one side of the connecting frame, and the connecting rod is fixedly connected to the other side of the connecting frame. A plurality of lead molds are mounted on the conveyor belt of the conveyor; the utility model has the beneficial effects of high-efficiency automatic cleaning, accurate control, flexible adjustment, stability, reliability, energy conservation, environmental protection, easiness in maintenance and the like, and provides high-efficiency and reliable forming equipment for the electric lead casting industry.

The utility model discloses a smoke-proof and splash-proof device for lead smelting, and relates to the technical field of lead smelting. The smoke-proof and splash-proof device comprises a base plate, guide grooves are symmetrically formed in the upper surface of the base plate, a smoke-proof and splash-proof assembly is arranged on the upper surface of the base plate, the smoke-proof and splash-proof assembly comprises supporting legs which are connected on the lower surface of a top plate in a rectangular array mode, and guide blocks fixedly connected to the lower surfaces of the supporting legs are connected into the guide grooves in a sliding mode. Movable plates hinged through hinges are arranged on the four side walls of the top plate, and inserting holes are formed in the inner side walls of plug plates fixedly connected to the inner side walls of the movable plates. An adjusting assembly is arranged on the upper surface of the base plate. According to the lead smelting device, the smoke-proof and splashing-proof assembly is arranged, the floating amount of lead-containing smoke is reduced, waste is prevented from splashing to accidentally injure workers, cleaning of the inner side wall of the smoke-proof and splashing-proof assembly and overhauling of the lead smelting device are facilitated, the adjusting assembly is arranged, the stability of the smoke-proof and splashing-proof assembly in the moving process is improved, and lead materials are convenient to take and place.

This invention belongs to the technical field of side-blown lead smelting furnaces, specifically disclosing a side-blown lead smelting furnace that is easy to inspect and maintain. It includes a settling chamber, a lead outlet channel connected to one side of the settling chamber, a connecting water jacket connected to the upper part of the outer wall of the settling chamber, a side-blowing mechanism connected to the upper end of the settling chamber and corresponding to the water jacket on the outer wall of the smelting chamber, a charging chamber connected to the upper end of the smelting chamber via a connecting mechanism, a flue pipe connected to the middle of the upper end of the charging chamber, the flue pipe being inclined, a feed inlet on the lower part of one side of the charging chamber, and a feeding mechanism connected to the upper end of the smelting chamber corresponding to the feed inlet. This invention achieves uniform material distribution and online self-cleaning through independently flippable guide plates and diffuser plates, and allows for quick replacement of components through detachable connections, significantly improving the convenience of inspection and maintenance and the equipment's operating rate.

The present invention relates to the technical field of lead refining, and particularly relates to a lead water collection device and a collection control method for metal lead smelting. By monitoring the change trends of the lead water level and the lead water purity in the lead water collection tank, and combining with the historical lead discharge rate, the present invention adjusts the filtration accuracy of the lead water; then, according to the change correlation between the lead water level and the molten iron level, further combining the changes in the lead water level and the lead water temperature, it controls the lead water discharge; and after the discharge, according to the change in the lead water volume before and after the discharge and the bottom pressure of the tank, combining with the sedimentation coefficient during the discharge, it adjusts the cleaning intensity of the sediment in the lead water collection tank. When collecting lead water, the present invention performs a certain filtration, reduces the degree of impurity blockage of the lead discharge hole and improves the lead water purity, accurately judges the possibility of sediment blockage and the possibility of lead water overflow in the lead water collection tank, determines the discharge timing and conducts control cleaning after the discharge, thereby improving the output effect of the lead water.

The invention relates to the technical field of lead melting equipment, in particular to a lead melting furnace body control circuit system and a control method. Comprising an electromagnetic induction heating module, a temperature detection module, a heat preservation layer heat loss monitoring module, a power grid parameter acquisition module, a central control unit and a man-machine interaction module, and the electromagnetic induction heating module is electrically connected with the central control unit and used for adjusting the heating power of a lead smelting furnace body according to a control signal output by the central control unit; the temperature detection module comprises at least three temperature sensors arranged in different areas in the furnace body and is used for collecting temperature data in the furnace body in real time and transmitting the temperature data to the central control unit; the heat-insulating layer heat loss monitoring module comprises a heat flow sensor and a heat-insulating layer temperature sensor and is used for acquiring the heat loss rate of the heat-insulating layer and the temperature difference between the inner wall and the outer wall of the heat-insulating layer and transmitting to the central control unit; according to the technical scheme of the lead smelting furnace, the heating efficiency can be fundamentally improved, and energy loss is reduced.

The utility model relates to the technical field of dross fishing equipment, and discloses dross fishing equipment for lead smelting, which comprises a fixing frame, a motor seat is fixedly connected to the front end of the fixing frame, a second motor is fixedly connected to the surface of the motor seat, and a screw rod is fixedly connected to the output end of the second motor. The surface of the lead screw is in threaded connection with a sliding plate, the upper surface of the sliding plate is fixedly connected with a motor box, the inner wall of the motor box is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a steel cable winding shaft. A second motor is arranged, the second motor drives a lead screw to enable a sliding plate to move along a fixing frame, the sliding plate drives a first motor in a motor box to operate, the first motor controls a steel cable to ascend and descend through a steel cable winding shaft, the steel cable ascends and descends to drive a stabilizing block and a limiting frame to move up and down, and a limiting sliding rod of the limiting frame limits the stabilizing block and the limiting frame. The stability in the sliding process is kept, and the connecting frame moves along with the limiting frame.

The utility model belongs to the technical field of secondary lead production and processing, and discloses a secondary lead smelting flue gas waste heat utilization device which comprises a smelting furnace and a preheating box, a feeding port is formed in the top end of the preheating box, a top cover is arranged at the feeding port, a discharging port is formed in the lower portion of one side of the preheating box, a feeding port is formed in one side of the upper end of the smelting furnace, and a flue gas pipeline is arranged on the other side of the upper end of the smelting furnace. A material guiding pipe is connected between the discharging port and the feeding port, a heat conducting plate which is obliquely arranged is arranged in the preheating box, the lower end of the heat conducting plate is connected with the discharging port, a preheating cavity is formed between the heat conducting plate and the bottom wall of the preheating box, the smoke pipeline is communicated with the preheating cavity, and the side, away from the smoke pipeline, of the preheating cavity is communicated with a smoke discharging pipe. According to the utility model, the waste heat of the flue gas is effectively utilized to preheat the regenerated lead raw material, so that the smelting efficiency can be improved, the heat can be effectively utilized, the energy waste is reduced, the production cost is reduced, and the device is suitable for popularization.

The invention provides a method for comprehensively recovering selenium, tellurium, mercury, silver and lead from lead smelting acid mud, and belongs to the technical field of hazardous solid waste harmlessness and comprehensive resource recovery, and the method comprises the following steps: mixing the lead smelting acid mud, an activating agent and water, ball-milling and activating to obtain activated acid mud; carrying out low-acid oxidation leaching on the activated acid mud to obtain low-acid leaching liquid and low-acid leaching residues; carrying out high-acid oxidation leaching on the low-acid leaching residues to obtain high-acid leaching liquid; bismuth powder is added into the low-acid leaching liquid for tellurium enrichment reaction, and tellurium concentrate and tellurium enriched liquid are obtained; adding chlorine salt into the tellurium-enriched liquid, and reacting under a certain pH value to obtain bismuth oxychloride and bismuth-removed liquid; carrying out mercury enrichment on the bismuth removal liquid to obtain mercury-rich slag and mercury removal liquid; and adding a reducing agent into the mercury removal liquid to react to obtain crude selenium and reduced liquid. The method for comprehensively recovering selenium, tellurium, mercury, silver and lead from lead smelting acid mud provided by the invention is economical, efficient and environment-friendly, and can solve the problems that the acid mud containing elements such as selenium, tellurium, mercury, silver and lead is stockpiled, all valuable elements cannot be recovered, and the like.

The utility model discloses a boiler ash cleaning device for lead smelting, which comprises an L-shaped hollow fixed arm, one end of the fixed arm extends into a boiler body, and the other end of the fixed arm is externally connected with a fan; one end of the adjusting cylinder is rotationally connected into the fixed arm; one end of the dust suction cylinder is telescopically connected into the adjusting cylinder, and an air inlet is formed in the other end of the dust suction cylinder and is in a horn shape. According to the utility model, through the air inlet with the adjustable extension length and the adjustable inclination angle, ash suction operation of a larger area in the furnace body can be covered, dead angles and omission at the farther end in the furnace body are avoided, and the ash suction effect is better.

The invention relates to a leaching and iron removing method for zinc smelting cobalt slag, and belongs to the field of smelting slag valuable metal recovery. The method comprises the following steps: (1) controlling the leaching pH value to be 3.0-4.0, leaching Co, Zn, Cd and Cu, and precipitating iron in the form of goethite; (2) the pH value is reduced, copper is deeply leached, and compressed air is introduced in the leaching process; and (3) liquid-solid separation. In the step (2), the deep leaching of the copper is realized, meanwhile, the goethite generated in the step (1) cannot be dissolved, and the precipitation of iron and the efficient leaching of Co, Zn, Cd and Cu can be completed in one reaction tank, so that the equipment investment and the operation cost are saved, and the leaching process of the cobalt slag is greatly shortened. The copper content of the obtained lead slag is greatly reduced, in the subsequent lead smelting process, the loss of lead, silver and gold caused by lead matte entrainment is effectively reduced, and the economic benefit of lead smelting is improved.

The invention discloses an acid-making and dust-removing device for lead smelting, and belongs to the related technical field of acid-making and dust-removing for lead smelting, the acid-making and dust-removing device for lead smelting comprises a mounting rack, the inner side of the mounting rack is sequentially provided with a heat pipe heat exchanger, a gravity settling chamber, an electric dust-removing chamber and a spraying chamber, and the bottom of the gravity settling chamber and the bottom of the electric dust-removing chamber are fixedly connected with humidifying boxes used for humidifying smoke dust; the bottom of the spraying chamber is fixedly connected with a dehumidification box used for reducing the humidity of the smoke dust, the bottom of the humidification box and the bottom of the dehumidification box are each provided with a discharge outlet, and a conveying auger is installed at the bottom of each discharge outlet; and smoke dust particles in a plurality of dust removal processes can be treated in a centralized manner, so that troubles caused to subsequent conveying and collection when dust is too dry or the humidity is too high are avoided.

The invention relates to the technical field of lead metallurgy, in particular to a non-carbonized lead metallurgy device and method.The non-carbonized lead metallurgy device comprises a first box body, a second box body and a third box body, an oxidation feeding assembly is arranged in the first box body, a sealed vacuum cavity is formed in the second box body, and a transfer isolation assembly is arranged in the sealed vacuum cavity; the transfer isolation assembly comprises a transfer isolation shell, butt joint pipes are arranged on the upper side and the lower side of the transfer isolation shell correspondingly, and the first box body, the second box body, the third box body, the vacuumizing assembly, the oxidation feeding assembly, the transfer isolation assembly, the feeding box, the rotary discharging valve structure and the like cooperate and cooperate with one another; gas environment isolation of all areas can be achieved structurally, a safety protection system of the device is jointly formed by the device, nitrogen filling of a transfer isolation assembly, a rotary sealing structure and the like, and it is ensured that oxygen generated in the oxidation reaction and hydrogen used in the reduction reaction are in a physical isolation state all the time.

The utility model discloses a kind of alloy lead smelting waste gas purification devices in waste battery recovery, including purification tank and exhaust pipe, the top of the purification tank is provided with exhaust pipe, the top of the purification tank of exhaust pipe side is provided with driving seat, the top of the driving seat is provided with adapter frame, the center position of the adapter frame is provided with adapter sleeve, the top of the purification tank of driving seat side is provided with liquid feeding pipe, the bottom of the purification tank is provided with liquid discharge pipe, the inside of the liquid discharge pipe is provided with solenoid valve, the center position of the driving seat is movably provided with hollow tube, and hollow tube extends to the inside of purification tank, and hollow tube is movably connected with adapter sleeve. The utility model not only realizes acid-base neutralization treatment and filter harmful substance in waste gas, facilitates to stir neutralization liquid to increase the uniformity of waste gas and neutralization liquid contact, facilitates to the quick disassembly and replacement of filter block, and improve the effect of waste gas purification.

The present application belongs to the field of metallurgical waste residue treatment, and discloses a method for co-processing of fuming lead residue and waste automobile exhaust catalyst, comprising the following steps: crushing the waste automobile exhaust catalyst to obtain catalyst powder; uniformly mixing the catalyst powder with a slagging agent to obtain a mixed slag system; vortex stirring the mixed slag system and molten fuming lead residue, introducing a mixed gas of hydrogen and magnesium vapor into the vortex stirring system to obtain a reduced desulfurized molten liquid and a lead-zinc-containing flue gas; water quenching the reduced desulfurized molten liquid to obtain a base glass and a platinum group metal-containing alloy; and recovering the lead-zinc-containing flue gas. The present application makes full use of the physical latent heat of the molten fuming lead residue generated in the lead smelting process, reduces the capture temperature, saves reaction energy consumption, and solves the problems of high energy consumption, low recovery efficiency and tail residue that cannot be treated when the fuming lead residue and the waste automobile exhaust catalyst are treated separately.

The invention relates to the technical field of industrial wastewater treatment, in particular to a lead smelting arsenic-containing wastewater treatment method which comprises the following steps: S1, crushing and fine grinding: carrying out ore grinding treatment on lead sulfide ore to obtain lead sulfide fine powder; s2, washing liquid rich oxidation treatment, wherein the washing liquid is subjected to micro-nano air or oxygen-enriched air oxidation treatment, and the end-point ORP value is controlled; s3, flue gas washing, wherein the flue gas is guided into a washing solution to be washed; s4, arsenic removal is conducted, specifically, the sulfur lead concentrate fine powder in the S1 is added into the oxygen-enriched washing liquid in the S2 for arsenic removal operation; s5, primary solid-liquid separation: carrying out solid-liquid separation on the solution subjected to arsenic removal in the step S3; s6, oxidation and neutralization: adding the solution obtained in the step S5 into an oxide intermediate product in the lead smelting process to carry out oxidation and neutralization reaction; and S7, secondary solid-liquid separation is conducted, specifically, liquid-solid separation is conducted on the ore pulp obtained in the step S6. The method provided by the invention can be used for solving the problems that the arsenic in the lead smelting arsenic-containing flue gas washing liquid is difficult to effectively remove and the arsenic cannot be subjected to centralized open-circuit treatment.

The utility model discloses a flash lead smelting nozzle, and relates to the technical field of metal smelting. The spray pipe comprises a gas spray pipe and a material spray pipe, the bottom of the material spray pipe is connected to the top of the reaction furnace through a flange, and the material spray pipe is communicated into the reaction furnace; the gas spray pipe is coaxially sleeved in the material spray pipe and is connected through a flange; the material spraying pipe is provided with a feeding port, the gas spraying pipe is provided with a spiral gas supply assembly, the spiral gas supply assembly comprises a plurality of gas inlet pipes, and the gas inlet pipes are communicated with the gas spraying pipe; the plurality of gas inlet pipes are tangentially arranged relative to the gas spraying pipe and are in center symmetry relative to the gas spraying pipe; through the arrangement of the gas spraying pipe, the material spraying pipe and the gas inlet pipe, the nozzle is divided into the inner area and the outer area, and rotational flow is generated in the gas spraying pipe through the gas inlet pipe, so that the retention time of materials in the air of the reaction furnace is prolonged, the materials can be fully reacted, and the lead smelting efficiency is improved.

The present invention discloses a method for improving the tin recovery rate during pyrometallurgical lead smelting, relating to the field of non-ferrous metal smelting. The method involves mixing a copper-containing material with a lead concentrate in a predetermined ratio. After batching, bottom-blowing smelting, reduction smelting, and pyrometallurgical refining to remove copper and tin, a copper slag with a high tin content is produced. By introducing copper into the pyrometallurgical lead smelting process, the method achieves efficient enrichment of tin from the lead concentrate in the copper slag, thereby improving the tin recovery and enrichment rates during the pyrometallurgical lead smelting process. The copper slag with a high tin content can be used as a raw material for further tin recovery. The method is simple to operate and has good economic benefits.

The application relates to the technical field of lead smelting equipment, in particular to a device for deoxidizing a lead smelting terminal melt in a melt furnace and a use method thereof, which comprises a bottom plate, a lead smelting furnace is arranged in the middle of the upper end face of the bottom plate, a feeding pipe is communicated with the middle of the right side of the lead smelting furnace, a feeding hopper is arranged at the upper end of the feeding pipe, a sliding column is fixedly connected to the right rear end of the upper end face of the bottom plate, a treatment box is slidingly connected to the sliding column, a second gear is fixedly connected to the lower end of a guide rod through a pin shaft, the lower end of the guide rod is rotationally connected to the treatment box through the pin shaft, a rack is meshingly connected to the second gear, and the lower end face of the rack is fixedly connected to the bottom plate. The device can automatically crush and screen the added materials, avoids material condensation, improves the deoxidization efficiency, has a stirring effect on the inside of the lead smelting furnace, ensures uniform heating of the materials, can clean the inside of the lead smelting furnace, and is convenient for subsequent reuse.

The application discloses a kind of lead smelting bottom blowing furnace coal explosion-proof filtering device and method, it is related to coal filtering technical field, the first hinged link, second hinged link are hinged in the first cage and second cage between each other in the application, cooperate torsional spring and liftable cylinder and form variable height bag cage, by means of the cooperation of pressing mechanism and spring, the active shrinkage of bag cage when dust cleaning can be realized, so that in pulse jet dust cleaning stage, the deformation amplitude and shaking acceleration of anti-static filter bag can be effectively increased, the coal dust attached to the surface of anti-static filter bag is more thoroughly stripped, so that the dust cleaning efficiency of the device is high and uniform, the filter bag resistance is quickly restored to low resistance state, not only can reduce system operation energy consumption, prolong the service life of anti-static filter bag, but also be beneficial to reduce the probability of fire and explosion, improve the safety and stability of the device to a certain extent.

The present invention discloses an efficient blowing method and blowing device for lead matte, a lead matte blowing device comprising a hollow furnace, a feeding port being provided on the furnace, a copper port and a slag port being provided on the lower portion of the furnace from bottom to top, a lifting device being provided above the furnace, a top-blowing lance being fixedly connected to a main shaft of the lifting device in the vertical direction, and a side-blowing lance being provided on the upper portion of the furnace. The blowing method of the present invention can achieve deep separation of copper and lead, and the blowing product is crude copper with extremely low lead content, and is rich in precious metals such as Ag, thereby increasing the value of the lead matte. In the blowing method of the present invention, most of the Pb element volatilizes to smoke dust, which can be returned to the lead smelting system for further extraction and recovery. The blowing slag can be sent to a cement plant as raw material after copper is extracted from the slag, and the sulfur-containing flue gas can be sent to acid production after purification. The entire process is pollution-free to the environment.