44 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 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 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 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 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 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 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 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 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 invention discloses a compound smelting aid and a refining process of carbonated lead plaster, and belongs to the technical field of secondary lead smelting, that is, the compound smelting aid is added in the refining process, and the compound smelting aid contains a porous carbon-loaded alkaline desulfurizer with large specific surface area and porosity, so that the contact efficiency between the compound smelting aid and sulfide can be increased; the reduction coke rate in the refining process is reduced, the lead recovery rate is improved, and the sulfur dioxide yield is low; calcium oxide loaded on the surface of the coal gasification slag-based porous carbon is desulfurized to generate calcium sulfate to be deposited on the surface, carbon monoxide molecules are adsorbed to the top ends of calcium atoms on the surface of the calcium sulfate under the oxygen-enriched condition through the electrostatic interaction and the physical adsorption effect of the coal gasification slag-based porous carbon, and then carbon monoxide and oxygen atoms attract each other; and carbon dioxide is formed and then is adsorbed on calcium atoms on the surface in an inclined manner, so that conversion from carbon monoxide to carbon dioxide is realized.

This utility model discloses a secondary air nozzle device for an oxygen-enriched side-blown recycled lead smelting furnace, relating to the field of smelting technology. It includes a valve body, an adjusting shaft, and an adjusting device. The adjusting device is fixedly installed on the upper end face of the valve body. The valve body has a mixing chamber and a transition chamber arranged sequentially vertically along the same central axis. An upward-through groove is opened at the center of the upper end face of the mixing chamber, and a downward-through air jet is opened at the center of the lower end face of the transition chamber. The adjusting shaft is slidably and sealed within the groove. A mixing fan blade device is rotatably connected to the adjusting shaft. A flow control valve core is fixedly connected to the lower end of the adjusting shaft. The adjusting shaft and the adjusting device are fixedly connected. The mixing fan blade device is located within the mixing chamber, and the flow control valve core is located within the transition chamber. This device can adjust the position of the flow control valve core via an electric telescopic rod device to precisely control the amount of gas added. The mixing fan blade device simultaneously mixes the gas uniformly, ensuring complete combustion inside the smelting furnace and improving production efficiency.

The utility model relates to the technical field of smelting, in particular to a zinc-lead combined smelting furnace which comprises a furnace bottom, a molten pool, a furnace wall, a furnace top and two groups of graphite electrodes, according to the zinc-lead combined smelting furnace, the efficiency, the stability and the environmental protection property of the smelting process are remarkably improved through the design of the furnace bottom of a multi-layer structure, the molten pools and the furnace walls which are laid in a crossed mode, the arch-shaped furnace top and the configuration of the graphite electrodes. By means of the design, the overall strength and heat resistance of the smelting furnace are enhanced, effective utilization of heat and stability of reducing atmosphere are guaranteed, even distribution and effective separation of liquid metal are promoted, and the recovery rate and purity of zinc and lead are improved. Meanwhile, by accurately controlling the current and the voltage of the graphite electrode, the smelting process is accurately controlled, the energy consumption and the production cost are reduced, and a positive role is played in environmental protection. The problem that an existing smelting method is large in metal loss is solved.

The invention relates to the technical field of metal refining, and provides an oxygen-enriched side blowing lead smelting furnace which comprises a lead smelting furnace mechanism, a smoke exhaust control mechanism is installed in the middle of the upper end of the lead smelting furnace mechanism, a driving mechanism is installed on the left side of the upper end of the lead smelting furnace mechanism, and an upper side blowing mechanism is installed on the upper middle portion of the lead smelting furnace mechanism. And a lower side blowing mechanism is mounted at the middle lower part of the lead smelting furnace mechanism. When the temperature in the furnace is too low, the rotating ball continues to slide leftwards to pull the air blowing pipe to rotate horizontally, then the air blowing pipe obliquely blows oxygen to the depression angle of the liquid level, the oxygen can be obliquely and directly blown to the liquid level, meanwhile, downward vortexes are formed at the upper end of the liquid level, the oxygen can fully react with molten materials, and the combustion reaction efficiency is further improved; and when the temperature in the upper furnace body is too high, the gas blowing pipe obliquely blows oxygen to the elevation angle of the liquid level, upward vortexes are formed above the liquid level, the oxygen emission rate is further increased, the oxidative combustion reaction is reduced, and a better cooling effect is achieved.

The application provides a method for recovering cadmium from lead smelting bottom blowing furnace ash, and relates to the field of non-ferrous metal smelting. The bottom blowing furnace ash is subjected to steps of leaching, purification and electrodeposition to produce crude cadmium. The bottom blowing furnace ash is subjected to water leaching or acid leaching to obtain leaching liquid and leaching residue. The leaching residue is returned to batching. The leaching liquid is subjected to purification to remove impurity elements such as arsenic, antimony, iron, fluorine and chlorine that affect electrodeposition. The purified liquid is subjected to electrodeposition to obtain crude cadmium, and the content of the crude cadmium is 99-99.9%. The waste liquid after electrodeposition can be returned to the raw material of the bottom blowing furnace for disc granulation recovery. The method can overcome the problems of low current efficiency, poor product purity, serious equipment corrosion and easy production of dendritic crystals in the existing electrodeposition process, and finally prepare crude cadmium products with a purity of more than 99%, which meets the needs of industrial production for cadmium recovery efficiency and product quality.

The invention discloses an accounting method and device for greenhouse gas emission of a lead smelting plant and a storage medium, relates to the technical field of gas analysis, and solves the problems that in the prior art, when tail gas at different stages is subjected to accounting, when faults of a data sensor are not found in time, the accounting result is inaccurate, and the calculation time is shortened. The technical problem that excessive greenhouse gas is discharged is solved. Raw material data of a lead smelting plant are obtained; tail gas in the lead smelting process is detected through a data sensor, and gas content data is obtained; predicting the gas content in the tail gas according to the raw material data to obtain predicted content data; carrying out fusion analysis on the gas content data to obtain tail gas content data; comparing the predicted content data with the tail gas content data to obtain a predicted feedback coefficient; adjusting prediction according to the prediction feedback coefficient; the accounting accuracy can be improved.

The invention belongs to the technical field of side blowing lead furnaces, and particularly discloses a side blowing lead furnace convenient to overhaul and maintain, which comprises a settling furnace chamber, one side of the settling furnace chamber is connected with a lead outlet channel, and the upper part of the outer wall of the settling furnace chamber is connected with a connecting water jacket; the upper end of the settling furnace chamber is connected with a smelting furnace chamber, a side blowing mechanism is correspondingly connected to the upper portion of a connecting water jacket, the upper end of the smelting furnace chamber is connected with a feeding furnace chamber through a connecting mechanism, the middle of the upper end of the feeding furnace chamber is connected with a smoke exhaust pipe, the smoke exhaust pipe is obliquely arranged, and a feeding port is formed in the lower portion of one side of the feeding furnace chamber. According to the smelting furnace, uniform distribution and online self-cleaning of materials are achieved through the material guide plate and the diffusion plate which can be turned over independently, rapid replacement of all components is achieved through detachable connection, and the overhaul and maintenance convenience and the equipment operation rate are greatly improved.

The application belongs to the technical field of non-ferrous metal smelting. Disclosed are a slag blocking device suitable for a metallurgical lead smelting bottom blowing furnace, a slag blocking system suitable for the metallurgical lead smelting bottom blowing furnace and a slag blocking method suitable for the metallurgical lead smelting bottom blowing furnace. The slag blocking device comprises a fixed base, a truss, a hanging frame and a barrel. The first end of the truss is rotatably supported on the fixed base. The hanging frame is rotatably arranged at the second end of the truss. The first rotary shaft and the second rotary shaft are both in a vertical state. The barrel is rotatably supported on the hanging frame. The barrel is provided with a feeding driving part. The front end of the barrel is provided with a plug corresponding to the slag port of the kiln. The sidewall of the barrel is provided with a feeding opening. The plugging material in the barrel is pushed out from the end of the plug by the feeding driving part. The application has a separate structure, has a low requirement for the installation environment, is contracted as a whole when the device is stopped, and occupies a very small space. The application can be remotely controlled, is far away from the harsh environment of the slag port, and has a greatly improved safety performance.

The invention relates to the technical field of non-ferrous metal metallurgy, in particular to a comprehensive recovery method for low-grade lead-zinc oxidized ore resources. According to the method, through a side-blown smelting furnace oxidation process and a fuming furnace reduction process, firstly, pyrometallurgy oxygen-enriched smelting is carried out, high-lead smoke dust and zinc-germanium-containing slag are produced, zinc oxide smoke dust is obtained through fuming reduction volatilization, then the zinc oxide smoke dust enters a zinc hydrometallurgy process, the high-lead smoke dust enters a pyrometallurgy lead smelting process for batching, and the zinc-germanium-containing slag is obtained. And finally, lead metal (rich in silver), zinc metal, germanium concentrate and tailings are generated. The method aims at achieving comprehensive recovery of low-grade lead-zinc oxidized ore resources by improving the recovery rate of lead and zinc in the low-grade lead-zinc oxidized ore and conducting cooperative treatment on silver, germanium and cadmium at the same time, and a new thought is provided for comprehensive recovery and large-scale industrial production of the low-grade lead-zinc oxidized ore resources.

The invention belongs to the technical field of metallurgy, and provides a low-carbon smelting method of lead aiming at the problems that the heat efficiency of equipment is reduced, the reaction between PbS and PbO is limited, and the volatilization smoke dust rate is high due to material accumulation at low temperature due to high moisture of materials fed into a furnace in traditional lead smelting. The method comprises the following steps: S1, material drying: drying lead sulfide concentrate, quartz sand and calcium carbonate (or calcium oxide); s2, mixing and grinding ore: mixing and grinding the dried lead concentrate with quartz sand and calcium carbonate (or calcium oxide) in proportion; s3, reacting, namely blowing mineral powder into the melt in the reaction furnace for reacting twice; s4, performing gas-phase reaction on the flue gas, namely mixing the flue gas generated by two times of reaction and performing gas-phase reaction; and S5, discharging and recycling the slag, enabling the slag in S2 to enter S3 for reaction, and feeding the slag in S3 for subsequent process treatment. The method effectively overcomes the defects of a traditional process and improves the metallurgical effect.

The application provides a method for processing precious lead in a short process, and belongs to the technical field of resource comprehensive utilization. The method first melts the precious metal to obtain a melting residue, a melting alloy and antimony-containing soot; the obtained melting residue is sent to a crude bismuth smelting process, the obtained antimony-containing soot is sent to a crude antimony smelting process together with antimony-containing soot obtained in an oxidation blowing process, and the obtained melting alloy is subjected to an oxidation blowing-melting separation copper removal-additive tellurium removal process to obtain a silver bismuth lead alloy; the silver bismuth lead alloy is subjected to vacuum furnace distillation to obtain crude silver. Compared with the prior art, the process realizes efficient separation of valuable elements, reduces the production process of various materials, reduces the dispersed rare and precious metals due to the long process, promotes efficient extraction and utilization of valuable rare and precious metals in the precious lead smelting process, the recovery rate of Bi is increased from 83.34% to more than 91%, the recovery rate of Sb is increased from 82.54% to more than 85%, and the recovery rate of Ag is increased from 98.63% to more than 99%.

The invention discloses a secondary lead smelting waste gas treatment device, and belongs to the technical field of secondary lead production. A secondary lead smelting waste gas treatment device comprises a smelting furnace, a material distributing furnace communicated with the smelting furnace is arranged at the smelting furnace, and a first-stage gas conveying pipe is arranged at the material distributing furnace; a treatment pond is arranged at the smelting furnace, and waste gas in the first-stage gas conveying pipe is introduced into a solution in the treatment pond; a secondary gas conveying pipe for conveying waste gas treated by a solution in the treatment tank is arranged at the treatment tank; a filtering unit for filtering waste gas conveyed by the second-stage gas conveying pipe and an exhaust pipe communicated with the filtering unit are arranged at the second-stage gas conveying pipe; and the filtering unit comprises two connecting discs and a filtering tank. According to the secondary lead smelting waste gas treatment device, waste gas is adsorbed through slaked lime, heavy metal particles in the waste gas can be separated, the content of heavy metal in the treated waste gas is greatly reduced, and the treated waste gas can be normally discharged.

The invention relates to a preparation method of a mine filling cementing material with lead smelting slag as a main material and an implementation device of the preparation method. The preparation method comprises the steps that S1, the lead smelting slag is subjected to four pretreatment procedures of screening, magnetic separation, drying and grinding, and pretreated slag materials are obtained; s2, mixing Portland cement clinker, metakaolin and sodium sulfate according to a mass ratio of 3: 2: 1 to form an auxiliary excitation component; and S3, mixing nano silicon dioxide, monocalcium phosphate and sodium lignin sulfonate according to a mass ratio of 5: 3: 2 to form the stabilizing additive. According to the invention, a gelling system taking the lead smelting slag as a main material is constructed, and the proportion of auxiliary exciting components is optimized, so that the dependence on a high-cost chemical exciting agent is reduced, and the cost of a unit gelling material is reduced by more than 20%.