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

3394results about "Magnetic separation" patented technology

Magnetic gradient separation fire metal evidence screening machine and multistage magnetic field regulation and control method thereof

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.
Owner:夏芮智能科技有限公司 +1

Electromagnetic separator with heat dissipation coil

The utility model belongs to the technical field of magnetic separators, and particularly relates to an electromagnetic separator with a heat dissipation coil, which comprises a frame, a conveying mechanism mounted on the frame, a transmission mechanism connected with the conveying mechanism, and a magnetic separation mechanism mounted on the frame. The magnetic separation mechanism comprises a shell, a winding reel is mounted in the shell, the winding reel is connected with a mounting frame, and a mounting ring is mounted on the mounting frame; each installation ring is provided with a plurality of winding supporting rods, electromagnetic wires are wound around the outer sides of the winding supporting rods of the installation rings, the electromagnetic wires sequentially wind around the winding supporting rods of the installation rings from inside to outside along the centermost installation ring, and a heat dissipation gap is reserved between every two electromagnetic wire layers. By arranging the mounting ring and the winding supporting rod, a plurality of gaps are reserved between the electromagnetic coils, heat dissipation of the electromagnetic coils is facilitated, the ventilation holes, the draught fan, the coil pipe, the oil cooler and the temperature sensor are additionally arranged, the temperature in the magnetic separation mechanism can be detected and adjusted in real time, and normal operation of the device is guaranteed.
Owner:WEIFANG HUAMIN ELECTRICAL & MECHANICAL TECHNOLOGY CO LTD

Method for preparing sponge iron from laterite-nickel ore hydrometallurgy tailings

The invention relates to a method for preparing sponge iron from laterite-nickel ore hydrometallurgy tailings, which comprises the following steps: (1) carrying out acid leaching on laterite-nickel ore hydrometallurgy tailings to obtain leached residues without at least part of CaSO4; (2) oxidizing and roasting the leaching residues obtained in the step (1), so that at least part of sulfate is discharged as sulfur-containing gas; performing hydrogen reduction to obtain a reduced material; and (3) the reduction material in the step (2) is sequentially subjected to ore grinding and magnetic separation, and the sponge iron with the Fe content being 90 wt% or above and the S content being 0.01 wt% or below is obtained. According to the method, iron resources in the laterite-nickel ore hydrometallurgy tailings are recycled, desulfurization and reduction are carried out step by step, the desulfurization efficiency is improved, the reduction temperature is reduced, and the sponge iron with the Fe content being 90 wt% or above and the S content being 0.01 wt% or below is obtained.
Owner:JINGMEN GEM NEW MATERIAL CO LTD

Foreign matter removal device

A foreign matter removal device may include a chamber comprising a fluid, and a magnet assembly under the chamber. The chamber may include a loading section configured to load a first object, a second object, and a third object into the fluid, a first trap region configured to trap the first object, a second trap region configured to trap the second object and to be adjacent to the first trap region, and a third trap region configured to trap the third object and to be adjacent to the second trap region. The first object is a first foreign matter, the second object is a semiconductor light-emitting element, and the third object is a second foreign matter.
Owner:LG ELECTRONICS INC

Energy-saving mine separation equipment

The invention discloses energy-saving mine separation equipment, and relates to the technical field of separation equipment, and the energy-saving mine separation equipment is technically characterized by comprising a bearing frame and a shaking table slidably mounted on the bearing frame, a pair of side plates are fixedly mounted on the shaking table, a conveying belt is arranged between the two side plates, driving rollers are arranged at the two ends of the conveying belt in the length direction, and the driving rollers are arranged on the side plates. The two ends of the driving roller in the length direction are rotationally connected with the two side plates correspondingly, a second motor is fixedly installed on the side plates, the output end of the second motor is fixedly connected with the driving roller, a plurality of magnetic attraction blocks are arranged in the length direction of the conveying belt at equal intervals, and each magnetic attraction block is fixedly connected with the conveying belt through a connector. Every two adjacent magnetic attraction blocks are tightly attached, a gap is formed between the magnetic attraction block located on the lower surface of the conveying belt and the upper surface of the shaking table, a scraping plate is fixedly installed on the baffle, one end of the scraping plate is tightly attached to the upper surface of the magnetic attraction block, and magnetic mineral materials do not need to be separated from the separated mineral materials.
Owner:ANHUI JINRISHENG MINING

Magnetic attraction lining and double-medium energy-saving ore grinding system

The utility model discloses a magnetic suction lining and double-medium energy-saving ore grinding system, which comprises an ore feeding port, an overflow type mill cylinder, a magnetic suction lining, double grinding media, a hollow shaft neck and a reverse spiral blade, the whole magnetic suction lining has magnetism and is tightly attached to the overflow type mill cylinder by means of magnetic force; double grinding media are arranged in the overflow type mill cylinder and are used for grinding minerals; a hollow shaft neck is arranged at one end part of the overflow type mill cylinder body and is used for discharging mineral products; an ore feeding opening is formed in the other end part of the overflow type mill cylinder body and is used for guiding a sand setting product of the hydraulic classification cyclone to enter the overflow type mill cylinder body; reverse spiral blades are arranged on the hollow shaft neck, and the rotating direction of the blades in the ore grinding operation is opposite to the rotating direction of the overflow type mill barrel. Through the multi-layer and multi-link fine design, the whole ore grinding process is more efficient and accurate, and the utilization rate and the production efficiency of mineral resources are greatly improved.
Owner:ANHUI MASTEEL MINING RESOURCES GRP NANSHAN MINING CO LTD +1

Waste copper recovery environment-friendly regeneration device

The invention discloses a waste copper recycling environment-friendly regeneration device, and relates to the technical field of waste copper recycling, the waste copper recycling environment-friendly regeneration device comprises a driving module, the driving module is installed on the side of a permanent magnet roller, a material processing module is installed outside the permanent magnet roller, an airflow assembly is arranged above the permanent magnet roller, and the airflow assembly comprises an oblique angle baffle and a flat angle baffle; the oblique angle baffle and the flat angle baffle are symmetrically distributed, the end, close to the material processing module, of the oblique angle baffle is obliquely designed, and the oblique end of the oblique angle baffle is perpendicular to the material processing module, so that non-magnetic waste copper is prevented from covering magnetic materials, and the materials can be effectively restrained and guided through directional blowing; according to the magnetic separation device, the materials are kept in a loose and uniform state before entering the magnetic separation track, the magnetic materials are more fully exposed in a magnetic field, magnetic particle leakage caused by accumulation is reduced, the recovery rate of the magnetic materials is improved, and meanwhile, the problem that the conveying speed of the feeding port is not matched with the material supply speed can be solved through airflow.
Owner:开平金铸铜业有限公司

Graphite negative electrode material screening and magnetic removal device

The application belongs to the technical field of battery negative electrode material processing, and particularly relates to a graphite negative electrode material screening and magnetic removing device. The device comprises a transmission box, a transmission channel and a magnetic removing device. The magnetic removing device comprises a magnetic removing box arranged on the side end of the transmission box, a channel arranged on the side wall of the transmission box, a driving structure arranged on the magnetic removing box, an electromagnetic rod connected with the driving structure and entering / leaving the transmission box through the channel, and a control structure for supplying power to the electromagnetic rod. Through the arrangement of the transmission box, the transmission channel and the magnetic removing device, the magnetic substances in the raw materials in the transmission can be quickly adsorbed, and the adsorbed magnetic substances can be taken away from the transmission position and removed by the operation of the magnetic removing device. The magnetic substances will not fall into the raw materials, so the precision requirement of the magnetic strength of the magnetic removing device is not high, and the device is easy to realize, has the advantages of strong practicability and simple operation.
Owner:HUZHOU KAIJIN NEW ENERGY TECH CO LTD +1

Plastic waste recycling device

The invention discloses a plastic waste recycling device and belongs to the field of plastic recycling, the plastic waste recycling device comprises a conveying belt, supporting frames are arranged on the two sides of the conveying belt, a treatment bin is fixedly connected to one sides of the supporting frames, a crushing assembly is arranged at the bottom of the treatment bin, and a magnetic separation assembly is arranged in the middle of the interior of the treatment bin. Metal blocks contained in plastic waste can be attracted by the electromagnet set, plastic can sequentially pass through the electromagnet set to enter the next link, the situation that the metal blocks damage metal parts in follow-up core equipment is avoided, the safety of the follow-up equipment is effectively improved, and the operation and maintenance cost of the equipment is reduced; under the condition that equipment does not stop working, different electromagnet sets can be rapidly switched back and forth to work, metal blocks on the surfaces of the electromagnet sets moved out of the treatment bin can be collected and treated, equipment stop is avoided, the work progress is accelerated, and the workload of workers is reduced.
Owner:YUTIAN COUNTY WANGRAN TECHNOLOGY CO LTD

Method and system for collaborative optimization of magnetic field and rotating speed of rotary magnetic separator

The invention is suitable for the technical field of mineral processing, and provides a rotary magnetic separator magnetic field and rotating speed collaborative optimization method and system.The method comprises the steps that a feeding characteristic data set is built based on data collected in real time, and a pre-trained magnetic field and rotating speed collaborative optimization model is input; the pre-trained magnetic field and rotating speed collaborative optimization model takes a weighted comprehensive utility value for maximizing the concentrate grade and the recovery rate as an optimization target; under the condition that the equipment safety boundary constraint and the process index threshold constraint are met, solving the optimal solution set of the model through a multi-target dynamic optimization algorithm, and outputting the current optimal magnetic field intensity parameter and the optimal rotating speed parameter; generating a cooperative control instruction according to the optimal magnetic field intensity parameter and the optimal rotating speed parameter; when the cooperative control instruction is executed, synchronous control of time sequence matching is implemented based on the dynamic response time difference of magnetic field intensity adjustment and rotating speed adjustment; and the separation efficiency, the product quality stability and the equipment operation reliability of the rotary magnetic separator are effectively improved.
Owner:GUANGXI UBRIDGE NEW MATERIAL TECH CO LTD +1

High-temperature-resistant inorganic antibacterial ceramic glaze and preparation process thereof

The invention discloses a high-temperature-resistant inorganic antibacterial ceramic glaze and a preparation process, and relates to the technical field of ceramic glaze preparation, the glaze is composed of a basic glaze and a zinc oxide-doped cerium dioxide inorganic antibacterial agent, and the basic glaze comprises feldspar, quartz, kaolin, calcite and talc. The preparation process comprises the following steps: mixing the raw materials, carrying out wet ball milling, adding the antibacterial agent and the dispergator, stirring at a high speed, sieving to remove iron, aging, glazing and sintering at a high temperature. In the process, an iron removal integrated unit integrating a two-stage vibration screening function and an automatic iron scraping function is adopted, and efficient and continuous iron removal operation is achieved. The obtained glaze can resist high-temperature sintering of 1150-1200 DEG C, the glaze surface is smooth and uniform, the glaze surface has lasting and efficient broad-spectrum antibacterial performance, glaze surface defects caused by iron impurities are effectively avoided, and the product yield and quality stability are improved.
Owner:ZIBO KEYUE NEW MATERIAL CO LTD

Beneficiation method of sulfur-containing magnetite

The invention discloses a sulfur-containing magnetite beneficiation method which specifically comprises the following steps: S1, raw material preparation: crushing sulfur-containing magnetite to obtain small-particle sulfur-containing magnetite; s2, physicochemical property determination: detecting the particle size of the small-particle sulfur-containing magnetite, the content of magnetite in the small-particle sulfur-containing magnetite and the content of sulfur minerals in the small-particle sulfur-containing magnetite; s3, magnetic separation: according to the physicochemical properties of the small-particle sulfur-containing magnetite detected in the step S2, automatically controlling the magnetic field intensity of a magnetic separation process through a controller, and carrying out magnetic separation to obtain magnetite and sulfur-containing ore; the magnetic field intensity of the magnetic separation process is dynamically adjusted according to the iron ore particle size of the sulfur-containing magnetite, the magnetite content in the sulfur-containing magnetite and the sulfur mineral content, the trends of iron minerals and sulfur minerals are accurately controlled, optimal adjustment of the element trends is achieved, and the recovery rate of iron and sulfur is increased.
Owner:WISCO RESOURCES GRP JINSHANDIAN MINING CO LTD +1

Efficient solid waste utilization sorting device

The utility model provides an efficient solid waste utilization sorting device, which relates to the technical field of solid waste sorting equipment, and comprises support legs and a sorting box, the inner side of the sorting box is provided with a hopper, the inner wall of the sorting box is rotatably connected with two crushing rollers, the sorting box is internally provided with a conveyor belt, the outside of a magnetic roller is provided with a scraper blade, and the scraper blade is provided with a baffle plate. According to the efficient solid waste utilization sorting device, through cooperation of the crushing roller, the magnetic roller and the brush, building waste is damaged through the crushing roller, internal steel bars are exposed or disengaged from the building waste, the adsorption effect is formed on the steel bars through magnetic force of the magnetic roller, and the steel bars are separated from the building waste; the reinforcing steel bars are sucked away from the interior of the building waste, rapid sorting is achieved, the reinforcing steel bars on the magnetic roller are blocked through the scraper, the reinforcing steel bars blocked by the scraper are swept into the collecting box through rotation of the brush, the reinforcing steel bars are collected in a unified mode, and the utilization rate of the solid waste is increased.
Owner:CHANGJI ZHUNDONG ECONOMIC & TECHNOLOGICAL DEVELOPMENT ZONE DONGAN BUILDING MATERIALS CO LTD

Efficient purifying and collecting cover for automobile laser cutting smoke dust

The invention discloses an efficient purifying and collecting cover for automobile laser cutting smoke dust, and relates to the technical field of automobile manufacturing, the efficient purifying and collecting cover comprises a workpiece conveying device, a multi-stage adjusting support, a dust collecting cabinet, a laser cutting mechanism and a dust sucking mechanism, the multi-stage adjusting support is based on a bearing base plate, and a servo driving unit drives a lifting screw rod to achieve overall lifting; a rotating motor drives a fine adjustment screw rod to drive a fine adjustment plate to perform accurate adjustment, a bearing plate of the laser cutting mechanism is fixed to the fine adjustment plate, a laser emission head in a sliding guide rail adapts to multi-position cutting through a synchronous motor, an axial screw rod and an auxiliary rolling wheel, and a negative pressure dust collection cavity of the dust collection mechanism is fixed to the bearing plate. Smoke dust is conveyed to the dust collection cabinet through the high-pressure vortex fan and the conveying pipeline, the dust collection cabinet adsorbs the smoke dust through a powerful negative pole magnetic plate, and a dust collection drawer is convenient to clean. And a precise filter screen, a non-woven fabric filter layer and a centrifugal induced draft fan are arranged in the exhaust channel, so that multi-stage purification of smoke dust is realized, exhaust is guaranteed to reach the standard, and an automobile laser cutting working condition is adapted.
Owner:WUHU CHANGRUI AUTO PARTS

Channel chip

PendingUS20250381572A1DielectrophoresisLaboratory glasswaresDielectrophoresisMaterials science
A channel chip includes a plurality of filter layers, a first common supply passage, a common channel, and a dielectrophoretic layer. The plurality of filter layers each have an HDF. The first common supply passage supplies a sample liquid to the HDFs of the plurality of filter layers. The liquid that has passed through the plurality of HDFs passes through the common channel. The dielectrophoretic layer includes electrodes for causing dielectrophoresis of dielectric particles contained in a liquid passing through the common channel. The plurality of filter layers and the dielectrophoretic layer are stacked.
Owner:SCREEN HOLDINGS CO LTD

Eddy current sorting machine capable of preventing high-temperature demagnetization

PendingCN121534843AMagnetic separationEddy current separatorMachine
The invention discloses an eddy current separator capable of preventing high-temperature demagnetization, relates to the technical field of eddy current separation, and aims to solve the problem of demagnetization of permanent magnets caused by high temperature conductivity in a magnetic roller. The eddy current separator comprises a rack, and a driving roller and an eccentric roller are mounted on the rack; the driving roller and the eccentric roller are jointly provided with a conveying belt; the eccentric roller comprises two bearing seats, the bearing seats are fixedly connected to the rack, a shell and a magnetic roller are jointly and rotationally connected to the two bearing seats, the magnetic roller is eccentrically arranged in the shell, a heat dissipation mechanism is further installed in the rack, a cooling cavity is formed in a bearing cavity of each bearing seat, and the cooling cavity is communicated with the shell. The two cooling cavities communicate with each other through a pipeline, and a liquid outlet and a liquid return opening of the heat dissipation mechanism communicate with the two cooling cavities correspondingly to form a cooling circulation loop.
Owner:LIAONING TUOFENG ENVIRONMENTAL PROTECTION TECH CO LTD

Oblique coil electromagnetic classificator for separating weak magnetic impurities from strong magnetic concentrate

The invention provides an oblique coil electromagnetic classificator for separating weak magnetic impurities from strong magnetic concentrate, which comprises a separation cylinder, an ore feeding device and a flushing device, an ore feeding pipe of the ore feeding device extends into the separation cylinder from the top end of the separation cylinder, the flushing device is arranged below the ore feeding pipe, and an oblique coil is arranged on the outer side of the separation cylinder, so that the weak magnetic impurities can be separated from the strong magnetic concentrate. Magnetic lines of force are obliquely distributed, magnetic linkages formed by magnetic particles are oblique, the whole magnetic linkages can be efficiently impacted in cooperation with vertical component force Fz of water flow of the flushing device, and scattering of magnetic aggregates is facilitated; the tail control flat coil and the concentrate gathering flat coil at the upper end and the lower end effectively control tailings and concentrates respectively, so that the separation efficiency of strong magnetic concentrates and weak magnetic impurities is improved, for example, in the iron-titanium separation operation of vanadium titano-magnetite ore dressing, ilmenite mixed into iron ore concentrates can be reduced, the grade of the iron ore concentrates can be improved, and titanium metal resources can be fully recycled.
Owner:BGRIMM MACHINERY & AUTOMATION TECH CO LTD

Method for roasting and recycling rare earth in neodymium iron boron waste

The invention relates to the technical field of rare earth secondary resource recovery and chemical metallurgy, in particular to a method for roasting and recovering rare earth in neodymium iron boron waste. The invention discloses a method for roasting and recovering rare earth in neodymium iron boron waste. The method comprises the following steps: mixing materials; performing flash chlorination roasting; quenching and leaching; and recovering iron. According to the method, the neodymium-iron-boron waste is finely ground and then fully mixed with zinc chloride powder, zinc chloride is rapidly melted at the reaction temperature of 350-550 DEG C, high-activity ZnCl liquid drops and HCl gas are generated, the ZnCl liquid drops and the HCl gas are subjected to instantaneous and violent gas-solid-liquid-solid reaction with waste particles in a suspended state, rare earth elements are efficiently converted into water-soluble rare earth chlorides, and the rare earth chlorides are recycled. The rare earth and the iron are basically converted into magnetic oxide insoluble in water, efficient separation of the rare earth and the iron can be achieved through simple hot water leaching, a pure rare earth chloride solution and high-grade iron ore concentrate are obtained, the technological process is extremely short, the reaction efficiency is high, and the rare earth recovery rate and the selectivity are both good.
Owner:JIANGXI UNIV OF SCI & TECH

Magnetic sweeper

A magnetic sweeper is provided, wherein the magnetic sweeper includes: a main body; a magnetic mechanism including at least one connector, a magnet unit and a bar, the at least one connector being connected to the main body and movable in a pull direction, the magnet unit being disposed at a side of the at least one connector, the bar being swingably disposed at another side of the at least one connector, and the bar, the at least one connector and the magnet unit being movable with each other in the pull direction; and a handle swingably connected to the main body.
Owner:CHANG HSIAO-CHI +1

Construction waste recycling and recovery equipment

The application discloses a kind of construction waste recycling and recycling equipment, it is related to waste processing field, including base and installation cover, the installation cover is arranged above the base, the inside of the installation cover is provided with the filter residue cylinder of horizontal type, and the left and right ends of filter residue cylinder are open structure design, and the left side of filter residue cylinder is provided with feeding mechanism, garbage is transported from outside to the inside of filter residue cylinder, the outside of the filter residue cylinder is provided with first drive mechanism.The construction waste recycling and recycling equipment can be sorted by the setting of filter residue cylinder The primary processing of garbage, separate the small particle size garbage such as waste residue in the garbage, so that it is collected alone, and the filter residue cylinder is horizontal structure, screening is carried out by rotating, it is not easy to block, and garbage can be transported by cooperating with spiral conveying plate during screening, and the precipitate and floating matter in the garbage are separated by cooperating with liquid separation chamber, so that different properties of material can be quickly separated.
Owner:SHANGHAI SHENPU CONSTRUCTION DEVELOPMENT CO LTD

Particle separator system, materials, and methods of use

The present invention concerns systems, materials, and methods of cell, cell organelle and / or particle separation and / or concentration utilizing magnetic levitation to affect separation. In some embodiments, the separation and / or concentration is performed in the wells of a multi-well plate.
Owner:LEVITASBIO INC

Method for selecting iron from Bayer process high-iron red mud

The invention relates to the technical field of comprehensive utilization of colored industrial solid wastes, in particular to a method for selecting iron from Bayer process high-iron red mud. The method comprises the following steps: carrying out pre-screening and size mixing treatment on the Bayer process high-iron red mud to obtain mixed ore pulp; carrying out gradient magnetic separation on the mixed ore pulp to obtain first iron ore concentrate, magnetic separation tailings and multiple groups of magnetic separation concentrates; the magnetic separation concentrates are sequentially combined and graded, and coarse-fraction iron ore concentrates and fine-fraction iron ore concentrates are obtained; dividing the coarse-fraction iron ore concentrate to obtain a first group of coarse-fraction iron ore concentrate and a second group of coarse-fraction iron ore concentrate; mixing the first group of coarse-fraction iron ore concentrate with the magnetic separation tailings to obtain mixed mineral aggregate; the mixed mineral aggregate is separated again, and separated iron ore concentrate is obtained; and combining various iron ore concentrates to obtain second iron ore concentrates. According to the method, the grade and the recovery rate of the iron ore concentrate are synchronously improved through the synergistic effect of multi-section combined magnetic separation, material circulation re-separation and size grading optimization.
Owner:ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO

Magnetophoresis separation device and method for paramagnetic micro-nano magnetic particles

The invention provides a paramagnetic micro-nano magnetic particle magnetophoresis separation device and a paramagnetic micro-nano magnetic particle magnetophoresis separation method, and relates to the technical field of micro-nano magnetic particle separation and magnetic labeled biomolecule separation analysis. The separation device comprises a plurality of permanent magnets which have the same magnetism and the same size and are arranged above the separation channel at intervals in the direction of the separation channel, and a plurality of sets of mechanical structures which respectively drive each permanent magnet to move up and down in the vertical direction; the Hall sensor clings to the separation channel and is used for detecting the magnetic induction intensity at the separation channel; a liquid inlet device; a UV / Vis ultraviolet-visible light detector; a collection device and a computer. The magnetic induction intensity in the separation channel can be set, the critical diameter of the micro-nano magnetic particles capable of being captured by the magnetic field is determined, magnetophoresis separation of paramagnetic micro-nano magnetic particles is accurately achieved, the controllability of the magnetophoresis separation process is enhanced, and the separation effect of the micro-nano magnetic particles is improved.
Owner:DALIAN JIAOTONG UNIVERSITY

Method for recovering laterite-nickel ore tailings

The invention provides a method for recovering laterite-nickel ore tailings, which comprises the following steps: (1) slurrying laterite-nickel ore tailings, and carrying out acid leaching treatment to obtain leached residues; (2) mixing the leaching residues with a reducing agent, and carrying out reduction desulfurization treatment to obtain reducing residues; (3) carrying out superfine grinding treatment on the reducing slag, and carrying out first magnetic separation treatment to obtain a first magnetic separation material; (4) the first magnetic separation material and a dispersing agent are mixed for second magnetic separation treatment, and a second magnetic separation material is obtained; and (5) carrying out alkali washing purification treatment on the second magnetic separation material, and drying to obtain sponge iron. According to the method, the problems of excessive accumulation, paid landfill and difficulty in recycling of the laterite-nickel ore tailings are solved, the laterite-nickel ore hydrometallurgy tailings are prepared into the sponge iron, and the magnetic separation tailings obtained in the recovery process can be used for producing building materials, cement and other additional products.
Owner:JINGMEN GEM NEW MATERIAL CO LTD

Negative pressure collection and explosion-proof safety treatment system for metal dust in electromagnet manufacturing process

The invention discloses a negative pressure collection and explosion-proof safety treatment system for metal dust in an electromagnet manufacturing process, which comprises a dust negative pressure collection unit, a ferromagnetic dust separation unit, a multi-stage filtration explosion-proof unit, a dust recovery unit and an intelligent control unit which are sequentially connected through corrosion-resistant metal pipelines, the dust negative-pressure collecting unit comprises a customized air suction cover, an embedded ground air suction opening and a movable negative-pressure dust suction gun; the ferromagnetic dust separation unit comprises an electromagnetic separation barrel, and a spiral flow guide channel is arranged in the barrel and is matched with a compressed air back flushing device; the multi-stage filtering explosion-proof unit comprises a first-stage cyclone separator and a second-stage HEPA efficient filter, an explosion-proof and explosion-proof layer is arranged on the outer side of the multi-stage filtering explosion-proof unit, and the multi-stage filtering explosion-proof unit is provided with a spark The intelligent control unit adopts a PLC control system, is connected with a dust concentration sensor, a temperature sensor and a pressure sensor, and supports remote monitoring and fault diagnosis. By means of the system, zero explosion risk, low emission and resource recycling of electromagnet manufacturing process dust are achieved.
Owner:JIANGSU ANTAI SAFETY TECH CO LTD

Smart air ionizer

A smart air ionizer is disclosed herein. The smart air ionizer includes a power circuit, a high voltage circuit, an electrode coupled to the high voltage circuit, the electrode configured to ionize air surrounding the electrode, and a controller circuit coupled to the power circuit and the high voltage circuit, the controller circuit including a controller configured to control a voltage output of the high voltage circuit to the electrode based on a feedback received from the high voltage circuit.
Owner:BE AEROSPACE INC

Five-axis numerical control cutter grinding machine

The invention discloses a five-axis numerical control cutter grinding machine which comprises a base, a grinding wheel, a driving device, a driving device and a control device. The grinding machine main body is fixedly mounted on the base and is positioned in the protective cover; the multi-stage filtering system is mounted in the waste liquid treatment tank and comprises a magnetic separation mechanism, a vortex separator, a bag type filter and an oil-water separator which are connected in sequence; wherein the magnetic separation mechanism comprises a first fixed plate and a second fixed plate, and the first fixed plate and the second fixed plate are respectively and fixedly arranged in the waste liquid treatment tank; the supporting cylinders are fixedly mounted between the first fixing plate and the second fixing plate; the rotating cylinder is annular and is rotatably arranged in the supporting cylinder, and a plurality of deflection grooves which are uniformly distributed in the circumferential direction are formed in the inner side of the rotating cylinder in the axial direction; and the separation plate is rotationally arranged in the deflection groove, and the two side faces of the separation plate are attached to the two ends of the deflection groove in a sealed mode.
Owner:SUZHOU HALLER INTELLIGENT EQUIP CO LTD

Method for efficiently extracting iron from copper slag through non-molten hydrogen reduction

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

Ironmaking impurity removal mechanism

The utility model belongs to ironmaking technical field especially is a kind of ironmaking impurity removal mechanism, including shell body, shell body one side inner wall is equipped with mounting plate, and the inside installation of shell body is equipped with connecting plate, connecting plate one side is provided with several guide plates, the bottom of guide plate is all provided with electromagnet, mounting plate one side is equipped with several electric telescopic handle, electromagnet one side both ends are connected with corresponding electric telescopic handle output end through support, connecting plate one side is equipped with blowpipe, and the one side of blowpipe is provided with several branch pipes;It can be more thoroughly cleaned to all non-raw material impurities in iron ore raw material, so that impurities and iron ore raw material are discharged from different discharge ports respectively, a large amount of dust on the surface of iron ore is cleaned during impurity removal process, iron ore raw material and impurities are more accurately distinguished, ore similar in appearance with iron ore raw material can be picked out, and the impurity removal effect is better.
Owner:LINGYUAN YUAN MACHINERY MANUFACTURING CO LTD

Efficient fixed separating screen for heavy medium pre-removal

A heavy medium pre-separation efficient fixed separating screen comprises a control assembly, a magnetic separation and flow guide integrated assembly and a supporting frame and is characterized in that a cavity with an opening in the upper end is formed in a frame body of the supporting frame, a fixing plate is fixed to a ground fixing piece through bolts, and the control assembly is of an integrated structure and can control the magnetic separation and flow guide integrated assembly according to real-time data of materials. A flow guide groove of the magnetic separation and flow guide integrated assembly is of a downwards-inclined trapezoidal structure with the front portion wide and the rear portion narrow, a magnetic separation roller is arranged above the flow guide groove, a medium recycling groove is formed below the magnetic separation roller, and a U-shaped scraper is arranged in a discharging area of the magnetic separation roller. A sieve plate I and a sieve plate II which are respectively supported by a sieve frame I and a sieve frame II and incline downwards are arranged in the cavity, the upper layer is provided with slot-shaped sieve holes, and the lower layer is provided with circular sieve holes, so that the problems that an integrated control assembly, a magnetic separation and flow guide integrated assembly, a high-voltage pulse cleaning assembly and the like cannot be used are effectively solved.
Owner:XINAN COAL IND ZAOZHUANG COAL MINING GROUP