7221results about "Magnetic separation" patented technology

The present disclosure relates to systems, devices, and methods for automated cell sorting within a cell processing system. In an embodiment, the present disclosure relates to an automated cell sorting system comprising a cartridge having a cell sorting module, where the cell sorting module comprises a flow cell, and an instrument within a bay of a cell processing workcell, where the instrument comprises a magnetic array couplable to the flow cell, each of the magnets within the magnetic array having a width of w and being spaced apart by between about w / 3 to about ¾w, and wherein the flow cell has a height of between about 1 / 12w to about ⅛w.

A pair of waveform disks for use in a disk-pack turbine used, for example, in systems and methods in at least one embodiment for separating fluids including liquids and gases into subcomponents by passing the fluid into an expansion chamber and then through at least a portion of a waveform pattern present between at least two disks. The disks having waveform patterns on at least one side.

A disk-pack turbine for use, for example, in systems and methods in at least one embodiment for separating fluids including liquids and gases into subcomponents by passing the fluid through a fluid intake chamber into an expansion chamber and then through at least a portion of a waveform pattern present between at least two rotors and / or disks. The rotors and / or disks having waveform patterns on at least one side.

Sorting biogenic material from a stream of heterogeneous materials is disclosed, including: detecting biogenic material within an input stream of heterogeneous material; sorting the biogenic material based at least in part on a desired biochar formulation; and tracking a composition of a sorted mixture of biogenic material.

The invention relates to the technical field of motor shaft size detection, in particular to motor shaft size detection equipment which comprises a detection table, a fixing mechanism, a length detection mechanism, a diameter detection mechanism and a cleaning mechanism. The length detection mechanism comprises a top plate, a detection plate, a first laser distance measuring sensor and a moving assembly, the cleaning mechanism comprises a transverse plate, an electromagnet, a sponge eraser, a telescopic assembly, a rotating assembly and a transmission assembly, and the diameter detection mechanism comprises a sliding frame, a sliding assembly and two second laser sensors. The length of the motor shaft can be detected, the diameter of the motor shaft can be obtained by arranging the two second laser sensors, the length and the diameter of the motor shaft can be synchronously detected by using one detection device, and the size detection efficiency of the motor shaft can be improved.

The invention discloses a flow and pressure regulating valve with a buffering effect, and relates to the technical field of flow and pressure regulating valves. Comprising a valve body, a mouse cage, a leakage detection assembly, an adjusting assembly and a filtering assembly, impurities in a medium are filtered through a filtering net on a filtering fan blade, the filtering fan blade is driven to rotate through flowing of the medium to generate centrifugal force, and the impurities are thrown out through the centrifugal force; and the filtered impurities are blocked and guided by the guide strips on the filtering fan blades, so that the impurities are thrown into the collecting tank along the guide strips, and the magnetic rings in the collecting tank adsorb and separate metal chips in the impurities, so that the purposes of filtering, collecting and separating the impurities are achieved. Leakage media are collected through the leakage cavity, the floating plate drives the contact on the supporting piece to extrude the piezoelectric ceramic in the elastic film under the action of buoyancy, buoyancy is generated through the leakage media, then the buoyancy is converted into displacement of the supporting piece, finally, the displacement is converted into an electric signal, and therefore the purpose of leakage detection is achieved.

A disk-pack turbine for use, for example, in systems and methods in at least one embodiment for separating fluids including liquids and gases into subcomponents by passing the fluid through a vortex chamber into an expansion chamber and then through at least a portion of a waveform pattern present between at least two rotors and / or disks. The rotors and / or disks having waveform patterns on at least one side. In at least one embodiment, the waveform patterns include a plurality of hyperbolic waveforms travelling around an axial center of the disk with each hyperbolic waveform having a varying diameter along the waveform.

The present invention provides a device and method for the resource utilization of urban waste incineration slag, which relates to the technical field of slag waste recycling. The device for the resource utilization of urban waste incineration slag includes an equipment frame and a crusher installed on the equipment frame. It further includes a flow and precipitation component, a water addition component, and a resource recovery component installed on the equipment frame. The crusher transfers the crushed slag to the water addition component. The water addition component is used to add water to the ash slag and make it flow into the flow and precipitation component. After operation and precipitation, it is then discharged onto the resource recovery component. It also includes multiple groups of stirring components for stirring the slurry in the flow and precipitation component. The device and method for the resource utilization of urban waste incineration slag, by setting the flow and precipitation component, can obtain precipitation within the operation time compared with a fixed sedimentation tank, and can be flipped and dumped, and flushed with high-pressure water, making it easier to clean the internal slurry and preventing blockage.

A disk-pack turbine for use, for example, in systems and methods in at least one embodiment for separating fluids including liquids and gases into subcomponents by passing the fluid through a vortex chamber into an expansion chamber and then through at least a portion of a waveform pattern present between at least two rotors and / or disks. The rotors and / or disks having waveform patterns on at least one side. In at least one embodiment, the waveform patterns include a plurality of hyperbolic waveforms axially aligned around a horizontal center of the system.

The invention discloses a lithium ion battery powder online iron removal airflow mixer and a mixed iron removal method. The online iron removal airflow mixer comprises a top cover arranged at the top of the feeding bin, a dust removal filter element mounting plate arranged in the feeding bin and a plurality of dust removal filter elements arranged on the dust removal filter element mounting plate, and the dust removal filter element mounting plate divides the inner space of the feeding bin into a feeding bin upper cavity and a feeding bin lower cavity; a synchronous mixing online iron removal device is also arranged; the synchronous mixing online iron removal device comprises a plurality of electromagnetic iron removal rods which are vertically arranged in the feeding bin at intervals and penetrate through the dust removal filter element mounting plate, and a lifting plate which is arranged in an upper cavity of the feeding bin and is fixedly connected with the upper ends of the electromagnetic iron removal rods; and the first linear execution element is arranged on the top cover cap and is connected with the lifting plate so as to realize up-down movement of the lifting plate and the electromagnetic iron removal rod. The lithium ion battery powder deironing effect and the mixing uniformity are improved, and the production efficiency is high.

The invention belongs to the technical field of magnetite beneficiation, and particularly relates to a method for removing iron impurities in minerals through manual and automatic three-stage combination in magnet beneficiation, a three-stage iron removal system is arranged, the iron impurities and ferromanganese are detected step by step according to the size of the iron impurities and the property of magnets or ferromanganese, and a detected magnetic field is cooperatively calibrated step by step; and iron impurities in the ores are removed in a classified manner. Compared with the prior art, the system has the beneficial effects that a manual and automatic three-stage combined iron removal solution is adopted, large magnetic iron impurities, small magnetic iron impurities and ferromanganese impurities in the process are efficiently classified and removed in a targeted manner, damage of the iron impurities to equipment such as an ore crusher and a belt conveyor is avoided, the operation efficiency of the process is improved, and the production cost is reduced. And the problem of removing iron impurities in magnet beneficiation is solved.

A disk-pack turbine includes two disks each having a waveform surface and a second surface, the waveform surfaces face each other and have an axially centered waveform pattern, at least one disk includes an axially centered opening passing from the second surface to the waveform surface, said disks define an expansion chamber including the at least one opening and a disk chamber between said disks from the expansion chamber to a periphery of said disks. The waveform pattern includes at least one waveform that has an amplitude that varies in a radial direction and said waveform pattern maintains or increases a number of peaks for each level of waveforms progressing out from the inner most waveform about said axial center to said periphery where the increase is by a multiplier of 2 to 8. The second surfaces have a slight parabolic shape or are flat.

The invention relates to magnetic impurity separation equipment for ceramic glaze processing, which comprises a separation box, the upper end of the separation box is provided with a feed hopper, the separation box is internally provided with an impurity removal mechanism, the impurity removal mechanism comprises a U-shaped frame located in the separation box, two rotating shafts are oppositely arranged on two side walls of the U-shaped frame, and the two rotating shafts are oppositely arranged on the two side walls of the U-shaped frame. A hollow roller is arranged between the two rotating shafts, an L-shaped fixing plate is arranged on one side wall of the U-shaped frame, a fixing shaft penetrating through the rotating shaft on the same side and extending into the hollow roller is arranged on the L-shaped fixing plate, and a semicircular permanent magnet located in the hollow roller is arranged on the fixing shaft. An impurity outlet is formed in the side wall of the separating box, and a glaze outlet connected with the triangular shunting block is formed in the bottom wall of the separating box; magnetic impurities on the hollow roller can be removed without shutdown, and the continuous separation capacity of the magnetic impurities is achieved.

The invention discloses a waste rubber sealing element recovery treatment all-in-one machine, and relates to the technical field of waste recovery, the waste rubber sealing element recovery treatment all-in-one machine comprises a treatment box, the outer wall of the front side of the treatment box is fixedly connected with a feeding hopper, the inner wall of the treatment box is fixedly connected with a sieve plate, and the outer wall of the front side of the treatment box is provided with a discharge port corresponding to the sieve plate. When the rubber sealing element is processed, the first driving motor drives the roller to rotate, rubber particles are screened through the screen holes, the particles meeting the size are thrown out, the particles which do not meet the standard are taken back through the blocking plate to be smashed again, the particle size uniformity is ensured, meanwhile, the knocking block is matched with the triggering rod, the sealing element accurately falls onto the smashing roller, deviation is avoided, and the screen holes are prevented from being blocked. And in addition, an inner gear ring and a third gear synchronously drive a rotating rod to rotate, a power-on guide column is matched with a magnetic attraction ring, the magnetic attraction ring moves in a reciprocating mode to attract metal impurities, the impurities fly into a magnetic collecting barrel after power failure, and the impurity removal efficiency and the rubber recovery purity and quality are improved.

The invention discloses a beneficiation, separation and enrichment method for beryllium ore, and belongs to the technical field of mineral processing and purification. In order to solve the problems of low recovery rate, low concentrate grade, large reagent dosage and serious environmental pollution, the beneficiation efficiency and the purity of beryllium ore concentrate are remarkably improved through comprehensive utilization of various separation technologies such as crushing, ore grinding, reselection and flotation, and the quality of the beryllium ore concentrate is improved through graded screening and gravity separation pre-enrichment. The method has the advantages that flotation reagent consumption and tailing generation are reduced to the greatest extent, environmental pollution is reduced, beryllium mineral high-selectivity recovery is realized, stirring effect and product quality are improved by optimally controlling stability of the stirring process, production cost and energy consumption are reduced, production efficiency and safety are improved, and the method is suitable for industrial production. Through the technical effects of fine adjustment strategy, dynamic adaptability, stirring effect optimization and system stability enhancement, optimal control of the stirring speed adjustment gradient is realized, and the stability and consistency of the stirring process are improved.

The invention provides a therapeutic drug monitoring kit and method and system, a magnetic bead extraction method is combined with LC-MS / MS detection to be applied to human blood drug concentration monitoring, a mixed magnetic bead solution containing phospholipid removal magnetic beads and to-be-detected drug adsorption magnetic beads is utilized to perform adsorption and extraction pretreatment on a to-be-detected drug in a sample, automatic treatment equipment is matched, and the concentration of the to-be-detected drug in the to-be-detected drug in the to-be-detected drug in the to-be-detected drug in the to-be-detected drug in the to-be-detected drug in the to-be-detected drug is detected. The pretreatment efficiency is high, the phospholipid content in the supernate is low, and the matrix effect and the chromatographic column washing pressure are greatly reduced. According to the therapeutic drug monitoring method provided by the invention, a unified pretreatment process is used, simultaneous extraction of multiple drugs is realized, and through a magnetic bead automatic extraction method, the pretreatment step of a sample can be rapidly completed, a therapeutic drug monitoring result can be rapidly obtained, the overall detection time is shortened, and the detection efficiency is improved. Therefore, a reliable laboratory examination basis is provided for individualized treatment.

The invention belongs to the technical field of ore magnetic separation recovery, and particularly relates to a rare earth functional material green production recovery device which comprises a machine body, one side of the machine body is fixedly connected with a fixed motor, the output end of the fixed motor is fixedly connected with a magnetic separation roller, the magnetic separation roller is in transmission connection with a conveying belt, the upper surface of the machine body is fixedly connected with a feeding port, and one side of the machine body is provided with a collecting frame. A baffle is rotationally connected into the machine body, a cooling assembly is arranged in the machine body and comprises a fixing plate fixedly connected into the machine body, a plurality of spraying holes are formed in the surface of the fixing plate and all face the magnetic separation roller, a pressure box is fixedly connected to one side of the machine body, and the side, penetrating through the machine body, of the fixing plate is fixedly connected with the pressure box. Water is stored in the pressure tank, the pressure tank is arranged in the pressure tank, and the cooling assembly is arranged, so that the problem that the magnetic separation quality is reduced due to magnetic property degradation of a permanent magnet material caused by the temperature rise effect of the magnetic separation roller is solved.

The invention discloses an artificial intelligence visual sorting machine for spices, and relates to the technical field of sorting machines, the artificial intelligence visual sorting machine comprises a vibration feeding mechanism, the vibration feeding mechanism comprises a mounting frame, the top of the mounting frame is fixedly connected with a rubber block, and the top of the rubber block is fixedly connected with a feeding groove. A vibration motor of the vibration feeding mechanism is matched with an inclined feeding groove, uniform and continuous feeding of materials is achieved, stable conveying of the conveyor is matched, during conveying, the visual detection mechanism adopts three sets of visual detection cameras with different light sources, an AI feature recognition module is combined, and color, mildew, form and texture features can be captured at the same time; the identification rate of homochromatic heterogeneous impurities is remarkably improved, the limitation of single identification dimension of a common color sorter is broken through, a plurality of groups of visual detection mechanisms are linked with a sorting execution mechanism, grading requirements of spices with different qualities are met through a plurality of groups of collaboration modules, and during category replacement, only a feature model needs to be updated through a man-machine interaction module, so that the classification efficiency is greatly improved. And mechanical parameters do not need to be repeatedly debugged.

The invention discloses a building engineering waste treatment device with a classified storage function, and relates to the field of waste recycling, the building engineering waste treatment device comprises a treatment box and a material adding opening formed in the upper portion of the treatment box, a buoyancy separation chamber is arranged in the treatment box, and the buoyancy separation chamber and the material adding opening communicate with each other; and a floating collection mechanism is arranged above the buoyancy separation chamber. According to the building engineering waste treatment device with the classified storage function, by means of the ingenious layout of the buoyancy sorting chamber, waste such as wood and plastic is separated from building stone such as concrete, the waste is in a floating state, the waste sinks to the bottom, and then various substances are crushed through the first crushing mechanism and the second crushing mechanism, so that the waste treatment efficiency is improved. The solid waste is destroyed and conveniently recycled, after treatment is completed, materials are classified and stored through different classified storage boxes, the classified storage effect is achieved, useful metal objects in crushed objects can be sorted, and therefore the follow-up recycling process is greatly facilitated.

The invention belongs to the technical field of mine ore washing equipment, and relates to improvement of the production efficiency of an elutriation machine, in particular to an elutriation system for efficient iron ore washing and separation and a control method thereof.The elutriation system comprises a concentrate pulp mixer, an overflow groove, an elutriation barrel, a supporting platform, an ore washing water path and a control system; the concentrate pulp mixer is arranged above the elutriation barrel, the overflow groove is formed in the lower portion outside the concentrate pulp mixer and is in an inclined table shape, the tailing outlet is formed in the bottom of the inclined table, the middle of the interior of the overflow groove is connected with the elutriation barrel, a middle barrel body of the elutriation barrel is divided into an inner barrel body and an outer barrel body, and multiple sets of magnet exciting coils are arranged between the inner barrel body and the outer barrel body. The lower part of the inner cylinder is connected with an inverted-cone cylinder; a stirring impeller is arranged below the concentrate pulp mixer; the lower part of the elutriation barrel is filled with direct-flow water and rotational flow water through an ore washing water path; the system automatically recognizes working condition changes according to the ore feeding property, the material amount, field data and database set values, the optimal operation mode is selected, a magnetic field, an ore removal valve, a water supply valve and the like are controlled, efficient and intelligent separation of iron ore powder is achieved, and the optimal ore washing effect is achieved.

The invention belongs to the technical field of mineral separation processes, and particularly relates to a magnetic separation process for low-grade potassium feldspar ore, which comprises the following steps: (1) crushing: crushing low-grade potassium feldspar raw ore; (2) ore grinding: grinding the fine particle raw materials to obtain ore pulp; (3) desliming: desliming the ore pulp to obtain a material containing magnetite and other weakly magnetic minerals; (4) removing strong magnetic magnetite through weak magnetic separation; (5) superconducting magnetic separation: carrying out superconducting magnetic separation on the magnetite-removed material to obtain potassium feldspar concentrate; (6) concentration is conducted, specifically, concentrate is subjected to concentration, and residual impurities are removed; and (7) dewatering and drying: dewatering and drying the concentrated concentrate to obtain a final product. According to the method, a two-step magnetic separation process is adopted for the low-grade potassium feldspar raw ore, weakly magnetic iron-containing impurities in the potassium feldspar raw ore are effectively removed, the impurity removing and whitening effects are achieved, the potassium feldspar powder with high purity and high whiteness is obtained, and the method is free of pollution and suitable for large-area application and popularization.

The invention discloses a powder metal particle removing system and method, and the method comprises the steps that powder is transferred into a preset container; mixing the powder materials in the container; putting the mixed powder into a sagger, and sintering to form a crystal structure; the sintered crystal structure is crushed and ground to the required particle size; and metal particles in the crushed particles are subjected to microwave oxidation. According to the scheme provided by the invention, after the powder is transferred into the preset container to be mixed, the powder is sintered in the sagger, then the sintered powder is ground, and finally the ground powder is subjected to microwave heating by utilizing the microwave oxidizer. After the microwave irradiates the powder, the metal particles contained in the powder can be quickly oxidized, the heating speed is high, the efficiency is high, the corresponding metal particles can be effectively removed, and the removal efficiency is high.

The utility model belongs to the technical field of material treatment, and particularly relates to a demagnetizing device for a carbon nano tube, which comprises a box body, a demagnetizing device, a demagnetizing device, a demagnetizing device and a demagnetizing device, the at least two demagnetizing assemblies are the same in structure; any one of the demagnetizing assemblies is arranged obliquely below the other demagnetizing assembly; the demagnetizing assembly comprises a rotating shaft connected with a bearing of the box body, two fixing plates arranged on the rotating shaft in a sleeving manner, and at least three trapezoidal magnets arranged between the two fixing plates; wherein the bevel edges of the trapezoidal magnets are in contact with one another in sequence so as to be matched with the two fixing plates to form a polygon; according to the demagnetizing device for the carbon nanotubes, the plurality of demagnetizing assemblies are arranged, so that when the carbon nanotubes enter the box body from the feeding port, magnetic impurities are captured step by step when the carbon nanotubes pass through the plurality of demagnetizing assemblies, and the carbon nanotubes are separated from the box body, so that the carbon nanotubes are separated from the box body. Therefore, the efficient and deep demagnetizing effect is achieved.

The utility model belongs to the technical field of washing equipment, and particularly relates to a rotary de-ironing separator with a cleaning function, which comprises an upper box body, a motor, a mounting rack, a fixed plate I, a magnetic cylinder and a positioning rod, the mounting rack is fixedly connected to the left side of the upper box body, the motor is mounted above the mounting rack, the left side of the fixed plate I is connected to the output end of the motor, and the magnetic cylinder is mounted above the mounting rack. The positioning rod is fixedly connected to the right side of the first fixing plate, the outer surface of the positioning rod is sleeved with the magnetic barrel, and the cleaning device is arranged at the right end of the magnetic barrel and comprises a first air cylinder, a scraper, a fixing rod, a second fixing plate and a fixing column. According to the rotary iron remover with the cleaning function, a motor drives a first fixing plate, a positioning rod and a magnetic barrel to rotate to adsorb scrap iron, a first air cylinder drives a second fixing plate, a fixing rod and the magnetic barrel to move back and forth on a scraper to clean the scrap iron on the surface of the magnetic barrel, and a second air cylinder and a connecting rod mechanism drive a rotating shaft and a baffle to rotate; waste materials and raw materials are guided to different areas in the collecting tank, and the dust cover and the dustproof cover prevent dust from entering the equipment.

The invention relates to the technical field of magnetic separation, in particular to a magnetic gradient separation fire metal material evidence screening machine and a multistage magnetic field regulation and control method thereof.The magnetic gradient separation fire metal material evidence screening machine comprises a machine body, a feeding pipe and rotating cylinders are rotationally connected to an inner cavity of the machine body, magnetic separation assemblies are installed between the feeding pipe and the rotating cylinders and between the two rotating cylinders, and driven gears are installed on the outer walls of the feeding pipe and the rotating cylinders; according to the multi-stage magnetic separation device, the multi-stage magnetic separation design is adopted, magnetic force sequentially increased from top to bottom of the magnetic separation assembly is combined with centrifugal force generated by rotation of the feeding pipe and the rotating cylinders, and materials are evenly dispersed and make full contact with the magnetic separation assembly; meanwhile, the valve plate assemblies are sequentially opened in the descending process of the abutting blocks, so that the materials sequentially fall down layer by layer, sorting disorder caused by falling of a large number of materials at a time is avoided, the materials can be kept for enough time on each magnetic separation assembly, it is ensured that metal material evidences with different magnetisms are fully adsorbed, and the screening accuracy is greatly improved.

The invention discloses an intelligent iron removal monitoring management method and system for a conveying belt and a storage medium, and the method comprises the steps: obtaining ferromagnetic target information, generating a foreign matter monitoring report according to the ferromagnetic target information, and finally carrying out the iron removal operation according to the foreign matter monitoring report and the state information of an iron removal unit. According to the device, metal foreign matters of different types and positions are sucked and removed, an operation instruction can be sent out in time before the foreign matters reach an iron removal area, timely and accurate actuation of the iron removal unit is ensured, the iron removal efficiency and accuracy of the conveying belt are remarkably improved, the impact risk on coal flow of the conveying belt is reduced, and the service life of the conveying belt is prolonged. And the automation level and the real-time monitoring capability of the system are improved.

The invention provides a high-value recovery method and device for a retired double-glass photovoltaic module. The high-value recovery method comprises the four steps of lossless disassembly of a frame and a junction box, gradient separation of double-sided glass, segmented pyrolysis of inert gas and material sorting. On the basis of gradient pyrolysis and flexible separation and recovery technologies, nondestructive recovery of the double-sided glass is realized, and complete separation of the double-sided glass is realized by gradient heating and flexible stripping technologies; high-value battery pieces are reserved, and thermal damage is avoided through segmented pyrolysis and ultrasonic vibration; resources are circulated in a closed-loop mode, the reutilization rate of glass, battery pieces and welding strips is high, and the retired double-glass assembly can achieve all-material closed-loop recycling.

The utility model discloses an automatic metallurgy feeding device, and particularly relates to the technical field of industrial manufacturing, the automatic metallurgy feeding device comprises two supporting plates, the front parts of the upper ends of the two supporting plates are jointly and fixedly connected with a blanking assembly, and the middle parts of the upper ends of the two supporting plates are jointly and fixedly connected with a swing mechanism; a separation mechanism is jointly and fixedly connected between the opposite faces of the two discharging assemblies, a first transmission assembly is fixedly connected to the upper portion of the right end of the supporting plate located on the right side, and a conveying assembly is jointly and fixedly connected to the lower sides of the front ends of the two supporting plates. According to the automatic metallurgy feeding device, the falling point and the flow of materials can be accurately controlled through the discharging assembly and the swing mechanism, it is guaranteed that the materials are evenly distributed on the conveying belt or in the stock bin, the materials cannot be stacked or broken, the feeding process is smoother, and the feeding efficiency is improved. And the problem of feeding interruption or speed reduction caused by non-uniform material distribution is reduced, and the feeding efficiency is effectively improved.

The invention relates to the technical field of jigging magnetic flotation columns, and discloses a jigging magnetic flotation column which comprises an inner cylinder, a magnet exciting coil is fixedly connected to the periphery of the inner cylinder, and an outer cylinder is arranged on the periphery of the magnet exciting coil; a conical concentrator is fixedly connected to the bottom of the inner cylinder, and a pulsation mechanism is arranged on one side of the conical concentrator; and the inner cylinder is connected with a feeding mechanism. The technical problems that a large amount of washing water needs to be used for elutriating the magnetic separator, and the concentration of reagents is affected by adding water into a flotation column are solved, the magnetic separation method for magnetite by applying magnetic levitation is possible, the magnetic separation magnetic field intensity is synchronously and reversely adjusted, and the problems of overflow tailing black running and magnetic ore concentrate magnetic inclusion caused by jigging pulsation are solved; the accidents that the ore pulp of the flotation column runs out of the groove and overflows and the elutriation magnetic separator runs out of the groove and overflows are prevented, and the product recovery rate and the concentrate index are also improved.

The invention discloses a method for comprehensively treating zinc-containing sulfuric acid slag and blast furnace cloth bag ash, which comprises the following steps of: uniformly mixing the zinc-containing sulfuric acid slag, the blast furnace cloth bag ash, a calcium additive and a carbonaceous reducing agent according to the weight ratio of 10: (3-5): (2.5-4): (1.5-3); smoke dust generated by roasting is subjected to oxidation dust removal, cooling separation and desulfurization treatment, and zinc-containing oxide, sulfuric acid and sulfite are obtained; and cooling the roasted material with water, crushing and grinding, and sequentially carrying out high-intensity magnetic separation and low-intensity magnetic separation to obtain high-valued reduced iron powder. The final iron grade can reach 95% or above, and the content of sulfur and zinc is lower than 0.1%. According to the method, the industrial solid waste sulfuric acid slag and the blast furnace cloth bag ash can be converted into the high-valued reduced iron powder, comprehensive recycling of resources is achieved, and environmental and soil pollution caused by stacking is avoided.