1128 results about "Magnetic separator" patented technology

The invention discloses a scrap aluminum classification and rapid identification method, and relates to the field of scrap aluminum classification and rapid identification, the method comprises the following steps: S1, grading pretreatment: to-be-sorted scrap aluminum is conveyed into a three-layer vibrating screen machine through a conveying belt for grading screening, and different sizes of scrap aluminum are sorted out; and S2, impurity separation is conducted, specifically, the classified scrap aluminum is conveyed into a drum-type magnetic separator, magnetic impurities are removed, then the scrap aluminum subjected to magnetic separation is conveyed to an airflow separator, light non-metal impurities are separated, then the scrap aluminum is conveyed to an objective table through a conveying belt, full-process automatic treatment is conducted, manual dependence is reduced, the production efficiency is improved, and the production cost is reduced. A single production line can reduce the workload of sorting workers; and compared with manual sorting, due to the fact that classification is accurate, the rejection rate of the regenerated aluminum alloy can be effectively reduced, and economic benefits are remarkably 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 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.

The system is formed by combining and connecting a coarse crusher (1), an ore washing sieve (2), a large dry magnetic separator (3), a wet magnetic separation preselector (4), a fine crusher (5), a dry magnetic separation scavenging machine (6), an aggregate screening machine (7), a preselected concentrate dewatering sieve (8), a preselected tailing dewatering sieve (9), a preselected concentrate concentration magnetic separator (10) and a preselected concentrate filter (11). An ore discharge port of the coarse crusher (1) is connected with a feeding end at the upper part of the ore washing sieve (2), an oversize discharge port of the ore washing sieve (2) is connected with a feeding belt of the large dry magnetic separator (3), and an undersize discharge port of the ore washing sieve (2) is connected with an ore feed port of the wet magnetic preselector (4). Slurry on the surface of high-silt-content raw ore is washed off through screening and ore washing operation, and the ore blocking condition is reduced; dry separation and wet separation processes are combined, a large number of tailings are thrown out in advance, meanwhile, various building material products are produced, and the resource utilization rate is increased.

The utility model discloses a magnetite powder composite cleaning mechanism for a magnetic separator roller, which comprises a magnetic separator body, a cleaning component is arranged on the magnetic separator body, the cleaning component comprises a magnetic suction mechanism and a spraying mechanism, the spraying mechanism is arranged below the magnetic suction mechanism, and the magnetic suction mechanism is arranged on the magnetic separator body. The magnetic attraction mechanism comprises a pipe body and a magnet arranged on the inner side of the pipe body, a scraping mechanism is arranged on the side edge of the magnetic attraction mechanism and comprises a reciprocating lead screw, a supporting arc plate and a scraping plate, and the reciprocating lead screw is sleeved with the supporting arc plate; the spraying and removing mechanism and the magnetic attraction mechanism are additionally arranged on the magnetic separator, the spraying and removing mechanism can work to spray high-pressure water flow to the roller to remove magnetite powder adhered to the roller, primary cleaning of the roller is achieved, a strong magnetic field is generated through the magnetic attraction mechanism, and the magnetite powder adhered to the roller is separated and moved to the magnetic attraction mechanism. Secondary cleaning of the roller is achieved, and cleaning of the roller is effectively and comprehensively achieved.

The invention discloses a composite powder carrier process, and belongs to the technical field of sewage treatment. The invention relates to a composite powder carrier process, which comprises the following steps: introducing sewage to be treated into a sewage treatment tank, adding a high-density magnetic responsive composite carrier to adsorb pollutants, discharging clear water after magnetic settling separation, and keeping the composite carrier to continuously treat new sewage. The magnetic settling plate is electrified for adsorption, and a magnetic separator in the drainage pipeline is used for dual recovery of the high-density magnetic responsive composite carrier, so that the retention rate of the high-density magnetic responsive composite carrier in the sewage treatment tank during sewage treatment is increased, and the utilization rate of the high-density magnetic responsive composite carrier is increased. And the high-density magnetic responsive composite carrier is rapidly pulled to carry pollutants to settle by utilizing magnetic attraction force generated by the magnetic settling plate, so that effective separation of the pollutants and clear water is realized. The high-density magnetic response composite carrier is recycled through the retention effect of the magnetic settlement plate on the carrier and the subsequent operation of supplementing sewage to be treated, and the treatment cost is reduced.

The invention discloses a sand recovery system of a precoated sand and iron sand mixed molding line, and particularly relates to the technical field of sand mold casting, the sand recovery system comprises a sand recovery device, a screening mechanism used for preliminarily screening mixed sand is arranged in a connecting frame, and a recovery mechanism used for recovering iron sand is arranged in a magnetic separator; a sorting mechanism used for recycling precoated sand is arranged on the surface of the sand recycling device, through the screening mechanism, the recycling mechanism and the sorting mechanism, large-particle sand in mixed sand can be separated out through a screen plate, then iron sand in the sand is separated out through a magnetic suction roller, and the precoated sand in the sand is separated out through an air blower. The precoated sand and the iron sand are added into the sand mixer, so that the precoated sand and the iron sand are mixed in proportion and then put into the molding line again for use, efficient recovery of the precoated sand and the iron sand is achieved, waste of the sand is reduced, and meanwhile energy consumption and equipment complexity in the sand recovery process are reduced by optimizing the sorting technology.

A method of processing waste consumable aerosol-generating articles by pyrolysis, the method comprising the steps of: feeding waste consumable aerosol-generating articles into a pyrolysis reactor, the aerosol-generating articles comprising at least some aerosol-generating articles comprising an aerosol-generating substrate with a metallic susceptor; heating the aerosol-generating articles in the pyrolysis reactor to a temperature sufficient to cause pyrolysis of non-metallic components of the aerosol-generating articles into gaseous products and char, wherein the temperature is less than a melting temperature of the metallic susceptors; extracting the gaseous products from the pyrolysis reactor and feeding the gaseous products to a condensing separator; and feeding the char from the pyrolysis reactor to a magnetic separator and separating the metallic susceptors from the char by applying a magnetic field; wherein at least some of the heat in the pyrolysis reactor is generated by applying an alternating electromagnetic field to the aerosol-generating articles so as to induce eddy currents in the metallic susceptors.

The invention relates to an efficient copper removal and recycling process for copper-cyanogen complex wastewater, which comprises the following steps: (1) critical acidification-selective crystallization of the copper-cyanogen complex wastewater: directionally recombining a copper-cyanogen complex to generate insoluble CuCN crystals by accurately regulating and controlling the pH value of the wastewater; (2) rotational flow enhanced crystallization: separating CuCN crystals from overflow liquid through a hydrocyclone; (3) gradient activation of a composite vulcanizing agent for deep copper removal: enabling the fine CuCN particles and the dissolved-state low-coordination copper-cyanogen complex to react to generate insoluble CuS crystals by adjusting the pH value and adding the composite vulcanizing agent; and (4) magnetic seed enhanced separation: carrying out magnetic separation by adopting modified magnetic seeds and a low-intensity magnetic separator, separating CuS magnetic flocs from the wastewater, and finally obtaining purified tail liquid. According to the closed-loop process, copper in the copper-cyanogen complex wastewater can be efficiently removed and recovered, the purified tail liquid can be reused for cyanidation leaching operation, the unit consumption of sodium cyanide is remarkably reduced, the leaching rate of gold and silver is increased, and zero discharge of wastewater and full recovery of copper resources are truly achieved.

A mineral separation method for separating and enriching tantalum, niobium and zinnwaldite from feldspar tailings, comprising the following steps: Step 1: Predispersion; Step 2: Vibration classification; Step 3: Strong dispersion; Step 4: Magnetic rough separation; Step 5: Magnetic cleaning; Step 6: Strong dispersion; Step 7: Flotation rough separation; Step 8: Flotation cleaning; Step 9: First pressure filtration; Step 10: Magnetic scavenging; Step 11: Second pressure filtration; Step 12: Flotation scavenging. Compared with the prior art, the advantages of the present invention are as follows: (1) Using a high-speed shearing machine for dispersion can greatly improve the dispersion effect and is beneficial to the subsequent separation of various minerals; Using a high-intensity slurry magnetic separator can effectively remove slime, which is beneficial to the further flotation separation of tantalum and niobium minerals from zinnwaldite and improve the recovery rate; Using a flotation column for the separation of tantalum and niobium ore and zinnwaldite has a large processing capacity, a high recovery rate and environmental neutrality, which is beneficial to environmental protection.

The invention discloses an efficient and environment-friendly wet type permanent magnet drum type magnetic separator for mining industry, and relates to the field of magnetic separators. An efficient environment-friendly wet type permanent magnet drum magnetic separator for the mining industry comprises a rack, a magnetic separation box is fixedly mounted on the rack, a mounting shaft is mounted on the rack through a support, a magnetic separation drum is rotationally connected to the mounting shaft, and the magnetic separation drum is located in a magnetic separation groove of the magnetic separation box; according to the magnetic separation device, ferromagnetic minerals can be rapidly and effectively separated from ore pulp, the magnetic separation efficiency is greatly improved, impurity minerals mixed in the ferromagnetic minerals can be effectively removed by knocking and vibrating the magnetic separation roller, the impurity content in the magnetic separation minerals is reduced, the purity of the ferromagnetic minerals is improved, subsequent processing is not needed, and the magnetic separation efficiency is improved. And then the magnetic separated minerals are selected, so that the time and the cost are saved, the efficiency is greatly improved, and meanwhile, the quality of a final product is also improved.

The utility model relates to the technical field of magnetic separators, in particular to a multistage super-strong concentration magnetic separator which comprises a magnetic separation box, a first chain wheel is rotationally connected to the outer surface of the magnetic separation box, a driving cylinder is rotationally connected to the inner wall of the magnetic separation box, a reciprocating groove is formed in the outer surface of the driving cylinder, and a driving strip is arranged in the magnetic separation box; and the outer surface of the driving strip is rotationally connected with a driving rod. Through the arrangement of components such as a driving cylinder and a driving rod, the driving cylinder and the driving rod are matched with each other, so that the driving rod cylinder can drive a first brush plate, a second brush plate and a third brush plate to reciprocate through the components such as the driving rod and a driving strip; and therefore, the effect of scraping and sweeping the lower surfaces of the first conveying belt, the second conveying belt and the third conveying belt by arranging a first driving cylinder and a driving rod is achieved, and the defect that magnetic materials attached to the surfaces of the conveying belts are inconvenient to clean in an existing technical scheme is overcome.

The utility model discloses a secondary thinner type countercurrent magnetic separator, which relates to the technical field of magnetic separators, and comprises a rack, a roller is rotatably arranged on the rack, the roller is connected with a driving device, the internal space of the roller is divided into a fan-shaped magnetic field area and a fan-shaped non-magnetic field area by taking the circle center of the roller as the center, and a magnet is arranged in the magnetic field area; a feeding box communicated with a feeding port of the magnetic separation area is arranged on the left side of the magnetic separation area, and a tailing port is formed in the bottom of the magnetic separation area. The magnetic separation area is further communicated with a dilution water pipe to provide dilution water for raw materials in the magnetic separation area; a concentrate opening used for collecting concentrate is formed in the outer side of the non-magnetic field area, and a flushing device is arranged above the concentrate opening. According to the utility model, raw materials can be in full contact with the magnetic separator, the screening is more sufficient, the screening speed is higher, the screening is more thorough, screened magnetic substances can be well brought out of a magnetic field area, the magnetic substances can be separated from the magnetic separator more sufficiently, meanwhile, the magnetic substances can be prevented from flowing back, and the working efficiency is improved.

The invention provides a magnetic separator for a mine plant, and belongs to the technical field of magnetic separators. The transverse shafts are fixedly arranged on the inner walls of the two sides of the screening bin, and the outer surfaces of the transverse shafts are movably sleeved with screening plates. During use, mineral aggregates are poured into the screening bin through the feeding hopper, the mineral aggregates are screened through through holes in the screening plates, one side of a pulling plate makes contact with one side of each screening plate, and therefore the screening efficiency is improved; a screening plate is pulled to further enable a plurality of connecting plates and a plurality of second telescopic rods to pull a plurality of first springs, when a pulling plate does not make contact with the screening plate, the connecting plates are pulled through the elastic force of the first springs, and under the back-and-forth movement of the screening plate, mineral aggregates rapidly slide to the interior of the crushing bin on one side of the screening plate; therefore, when the magnetic separator is used, mineral materials are screened, the situation that due to the fact that the mineral granularity is too large, magnetic minerals cannot be effectively adsorbed, and the separation effect is reduced is prevented, and the screening effect is good.

The invention relates to the technical field of equipment control, and discloses a construction waste brick-concrete material fine sorting and regeneration system, which comprises a characteristic detection subsystem for carrying out characteristic detection on a construction waste brick-concrete material entering a sorting and regeneration system to obtain brick-concrete material characteristic data; the construction subsystem is used for constructing a multi-equipment control network operation strategy of the crusher, the vibrating screen, the winnowing machine and the magnetic separator according to the brick-concrete material characteristic data; the dynamic parameter adjustment subsystem is used for carrying out dynamic parameter adjustment on each device in the sorting and regeneration system based on the brick-concrete material characteristic data and the multi-device control network operation strategy to obtain a device operation parameter set; and the power distribution subsystem is used for inputting the equipment operation parameter set into an energy consumption optimization algorithm for power distribution to obtain an equipment power optimization control instruction, and the optimal balance between the sorting precision and the energy efficiency is realized.

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.

The invention discloses a device and method for centrifugally purifying grinding fluid, and relates to the technical field of solid-liquid separation and purification. A first liquid inlet and a first liquid outlet are formed in the upper portion of the dirty liquid tank, and the first liquid inlet of the dirty liquid tank is communicated with the liquid outlet of the magnetic separator; a liquid inlet II and a liquid outlet II for outputting purified liquid are formed in the upper part of the liquid purifying box; the liquid inlet II is communicated with the liquid outlet I; a third liquid outlet in the bottom of the liquid purifying box is communicated with a liquid inlet of the magnetic separator through a conveying pipe so as to circularly convey and filter impurity-containing liquid; a liquid inlet pipeline of the deslagging centrifugal machine is communicated with a fourth liquid outlet in the bottom of the dirty liquid box, and a liquid outlet pipeline of the deslagging centrifugal machine is communicated with a liquid inlet of the magnetic separator so as to centrifugally purify the impurity-containing liquid at the bottom of the dirty liquid box and separate impurities. According to the device, the emulsion can be efficiently recycled and utilized, the working intensity of receiving, storing, discharging and transporting the emulsion dirt is reduced, the equipment maintenance cost is reduced, and the purification efficiency is improved.

The utility model discloses a permanent magnet drum type magnetic separator with a dustproof structure, which comprises a shell, a magnetic separation drum is mounted in the shell, connecting bearings are mounted on two sides of the magnetic separation drum, and protective boxes corresponding to the connecting bearings are mounted on two sides of the inner wall of the shell; the filter box is fixedly installed on the right side of the upper portion of the shell, a dust collection filter bag is installed in the filter box, a box door is hinged to the front end of the filter box, an air pump is installed above the filter box, an input pipe is installed at the input end of the air pump, and an output pipe is installed at the output end of the air pump; connecting threads are arranged at the end, away from the air pump, of the output pipe, and a communicating pipe is installed on the right side of the air pump. According to the permanent magnet drum type magnetic separator with the dustproof structure, gas and dust in the shell are pumped to the dust collection filter bag through the air pump, the input pipe and the output pipe to be filtered and collected, the dustproof effect is achieved, and air pollution caused by dust scattering is avoided.

The invention discloses automatic magnetic polishing and separating equipment which comprises a rack, a magnetic polishing machine and a magnetic separator. The magnetic polisher comprises a polishing barrel and a first rotating magnetic field device, the first rotating magnetic field device is arranged on the rack, and the bottom of the polishing barrel is arranged at the top of the first rotating magnetic field device; the magnetic separator comprises a separation barrel and a second rotating magnetic field device, the second rotating magnetic field device is arranged on the rack, and the bottom of the separation barrel is arranged at the top of the second rotating magnetic field device; a separation chamber and a recovery chamber located below the separation chamber are arranged in the separation barrel, filtering holes allowing magnetic grinding materials in the separation chamber to enter the recovery chamber are formed in the separation barrel, and an overturning device is arranged on the rack and used for overturning the polishing barrel so that workpieces and the magnetic grinding materials in the polishing barrel can be poured into the separation chamber. Magnetic polishing and magnetic separation are integrated, automation of the whole process of magnetic polishing and magnetic abrasive and workpiece separation after polishing is achieved, and production efficiency and stability of polishing quality are guaranteed.

The utility model relates to the technical field of ore separation, and provides a split type dry magnetic separator based on a CTX magnetic roller, which comprises a magnetic separation mechanism which is fixed at a first ore outlet of an ore separation mechanism and comprises an electric roller, the CTX magnetic roller and a first conveying rubber belt, and the first conveying rubber belt is wound outside the electric roller and the CTX magnetic roller. The first conveying rubber belt is used for conveying fine-crushed ore flowing out of the first ore outlet to the CTX magnetic roller, the CTX magnetic roller is used for treating the fine-crushed ore to obtain magnetic concentrate and magnetic tailings, the structure of an original ore dressing mechanism does not need to be adjusted, and the situation that the original ore dressing mechanism cannot adapt to installation of the CTX magnetic roller is avoided; the transformation cost of the mineral separation mechanism is effectively reduced; a large amount of tailings are discarded in advance through the CTX magnetic roller, the amount of ore entering a mill is reduced, and energy conservation and consumption reduction are achieved; the grade of the ground iron ore is greatly improved, the ore grading process is optimized, and the grading cost is reduced.

The utility model belongs to the technical field of magnetic separation mechanisms, and particularly relates to a magnetic separation mechanism for a reprocessed plastic particle magnetic separator, which comprises a machine body, a magnetic separator is mounted on the machine body, a discharge port is arranged on one side of the magnetic separator, a motor is mounted on the left side of the magnetic separator, and a discharge bin is mounted at the discharge port. Rectangular grooves are formed in the two sides of the discharging bin. The sleeve is transversely installed in the support, the lead screw is inserted in the sleeve, the motor drives the lead screw to regularly and circularly rotate forwards and reversely in a reciprocating mode, the movable block provided with the magnet moves back and forth along the sliding way through the sliding block, and plastic particles flowing along the discharging bin slide through the sleeve. Wherein residual metal particles are adsorbed outside the sleeve through the magnetic area and move to the stripper plate along with the movement of the magnet, after the movable block moves to the outer side of the stripper plate, the metal particles are blocked by the stripper plate and fall into the discharging port, and secondary screening is carried out at the discharging bin, so that the efficiency of removing the metal particles is improved.

The utility model discloses a medium box for fine fraction separation of a vertical ring high-gradient magnetic separator, which belongs to the technical field of magnetic mineral separation equipment and comprises two fixing plates. At least one supporting plate is located between the two fixing plates. The two ends of the multiple reinforcing medium rods are connected with the fixing plate and penetrate through the supporting plate. The multiple reinforcing medium rods are distributed along the edge and form a medium containing cavity with the fixing plate. A plurality of spaced medium rods are positioned in the medium accommodating chamber, and two ends of the spaced medium rods are connected with the fixing plate and penetrate through the supporting plate; the diameter of the spacing medium rod is not greater than that of the reinforcing medium rod; the magnetic medium is embedded in a gap between the adjacent interval medium rods; the reinforcing medium rods and the spacing medium rods penetrate through the supporting plate and are fixedly connected with the fixing plate, so that the structural strength can be improved; the reinforcing medium rods, the spacing medium rods and the magnetic medium are arranged in order, so that a compact mineral separation medium can be formed, and the recovery rate of fine-fraction minerals is increased; and the magnetic medium can be conveniently pulled out and cleaned, so that the cleaning difficulty is reduced.

The invention provides a process for directly reducing iron and separating iron and aluminum from aluminum oxide red mud, and relates to the technical field of comprehensive utilization of metallurgical solid waste such as red mud and carbon dioxide CCUS. According to the process for directly reducing iron and separating iron from aluminum by using aluminum oxide red mud, solid wastes such as red mud, secondary aluminum ash or other sodium-based additives, metallurgical slag and the like are used as raw materials, and are mixed and granulated after being reasonably matched with a catalyst. Roasting in a gas semi-suspension oxidation kiln; and the roasted material enters a self-gravity closed electric heating reduction kiln to be calcined by taking biomass as fuel. CO gas generated by calcination is used as fuel of the fuel gas semi-suspension oxidation kiln. After calcination, under the protection of excessive CO gas, the high metallization ratio of 95% or above is achieved, iron and aluminum are separated, the material cooled to about 200 DEG C is leached with water, the levigated material enters a magnetic separator, solid-liquid separation and solid-phase magnetic separation of metal iron are achieved, and titanium concentrate and slag are separated.

The present invention relates to the field of heavy medium coal preparation technology, specifically to a heavy medium coal preparation process with ultra-low dielectric loss control. By analyzing the flow direction of magnetic separator tailings, magnetic separation is performed on materials with high dielectric content and appropriate concentrations, such as laminated undersize, centrifuge filtrate, and high-frequency undersize, while maintaining the original material flow path and reducing dielectric consumption. The heavy medium coal preparation process can reduce the dielectric content of coal slime to approximately 500g / t and reduce the dielectric loss of the coal preparation system from 0.8g / t to <0.6g / t, achieving ultra-low dielectric loss control.

Disclosed in the present invention is a method for removing inclusions inside roughing quartz particles of hematite tailings. The method comprises the following steps: S1: roasting and water quenching: roasting the roughing quartz particles of hematite tailings at 650-700 °C for 2-5 hours, followed by water quenching; S2: grinding: grinding the water-quenched quartz particles in step S1 to 500-400 meshes; S3: magnetic separation: removing mineral inclusions from the quartz particles obtained in step S2 by means of a superconducting high-gradient magnetic separator; S4: roasting: roasting the quartz particles obtained in step S3 at 1000-1250 °C for 2-5 hours, followed by cooling, and then roasting at 750-1000 °C for 4-5 hours, the step being repeated 3-5 times; and S5: acid leaching: subjecting the quartz particles obtained in step S4 to three-stage cyclic acid leaching to remove mineral and gas-liquid inclusions from the quartz particles, so as to obtain high-purity quartz sand. The high-purity quartz prepared by the present invention has a SiO2 grade as high as 99.9% or above, which meets the standard of refined quartz sand, thereby effectively achieving the purpose of high-value and resource utilization of hematite tailings.

The utility model discloses an aluminum ash screening machine which comprises a machine frame, a magnetic separation mechanism, a motor, a screening mechanism and a driving shaft are arranged on the machine frame, linkage of magnetic separation and screening is achieved through driving of a single motor, and working efficiency is greatly improved. The magnetic separation mechanism adopts a telescopic magnetic bar design, is matched with a roller to rotate, can penetrate into the aluminum ash powder to effectively adsorb iron impurities, and realizes quick retraction of the magnetic bar through a reset spring, so that efficient separation of ferromagnetic impurities is realized; meanwhile, the magnetic bar can stir and scatter the aluminum ash powder along with rotation of the roller, and the separation effect of iron impurities is improved; by means of the design, the quality of the aluminum ash powder is improved, the follow-up treatment difficulty is lowered, and remarkable economic benefits are achieved.

The invention relates to the technical field of wastewater treatment, in particular to a micro-plastic removal and recovery method and system based on magnetic adsorption-dissociation. The method comprises the following steps: S1, magnetic adsorption agglomeration; S2, magnetic separation; and S3, dissociation and recovery. The system comprises a raw water tank, a magnetic seed adding unit internally provided with a magnetic seed storage tank, a mixing reactor, a magnetic separator, a dissociation regeneration tank and a secondary magnetic separator which are connected in sequence, the method disclosed by the invention has high-efficiency removal capability on micro-plastics under different water quality conditions, regeneration cycle performance of magnetic seeds and adaptability and stability to complex water bodies, and the technology has remarkable advantages in the aspects of deep removal of the micro-plastics and resource recovery.

The on-line recycling device comprises a recycling box and a recycling pipe, a suction nozzle is arranged at the end of the recycling pipe, adjusting mechanisms are symmetrically arranged on the two sides of the suction nozzle, each adjusting mechanism comprises a mounting plate and an air cylinder arranged on the mounting plate, a piston rod of each air cylinder penetrates through the mounting plate and then is connected with a supporting plate, and the supporting plates are connected with the recycling box. Rollers are arranged below the supporting plate, a vertical plate is arranged on the upper portion in the recycling box, the recycling box on one side of the vertical plate is communicated with the recycling pipe, the top of the recycling box on the other side of the vertical plate is connected with a negative pressure fan, a plurality of spines are arranged on the vertical plate on the side facing the recycling pipe, and a material gathering cone is arranged in the recycling box below the vertical plate. A magnetic separator is arranged at the lower end opening of the material gathering cone, a primary vibrating screen and a secondary vibrating screen are sequentially and obliquely arranged in the recycling box below the magnetic separator, and a discharging plate is obliquely arranged in the recycling box below the secondary vibrating screen. In conclusion, the welding flux recycling device has the advantages of being thorough in welding flux recycling, convenient to adjust the height of the suction nozzle and good in recycling effect.

The utility model discloses a de-ironing separator, a de-ironing device and a battery production line, and relates to the technical field of battery production, the de-ironing separator comprises a tank body, a magnetic bar assembly, a driving assembly and a cleaning assembly, the tank body is provided with a de-ironing cavity and an opening communicated with the de-ironing cavity; the magnetic rod assembly comprises a cover body and a magnetic rod, the cover body covers the opening, and the magnetic rod is arranged on the side, facing the iron removal cavity, of the cover body; the driving assembly is connected with the magnetic rod assembly and used for driving the magnetic rod assembly to get close to or away from the tank so that the magnetic rod can get in and out of the iron removal cavity. The cleaning assembly comprises a cleaning module and a moving mechanism, the cleaning module comprises a cleaning sliding ring and a sealing ring arranged on the inner side of the cleaning sliding ring, the magnetic bar penetrates through the cleaning sliding ring and the sealing ring, the moving mechanism is used for driving the cleaning module to slide along the magnetic bar, and the cleaning sliding ring comprises two semi-ring structures spliced with each other; and the cleaning module is hooped on hooping pieces on the outer sides of the two semi-ring structures. According to the technical scheme, the cleaning convenience of the magnetic bar in the iron remover can be improved.

The invention provides a method for preparing a ceramic material from lithium slag obtained by extracting lithium through a spodumene acid method, and relates to the technical field of energy conservation and environmental protection. The method for preparing the ceramic material by extracting the lithium slag through the spodumene acid method comprises the following steps: S1, component analysis: carrying out comprehensive component analysis on the lithium slag; s2, magnetic separation iron removal: enabling the lithium slag to pass through a magnetic field by using a magnetic separator, so that magnetic iron impurities in the lithium slag are adsorbed and separated; s3, particle size adjustment is conducted, and mechanical equipment is adopted for conducting particle size grading and grinding treatment on the lithium slag; step S4, mixing and ball-milling: according to a preset formula proportion, adding the lithium slag, kaolin, feldspar, quartz and an additive into a ball mill in proportion, adding a proper amount of water, and carrying out ball-milling and mixing for 2-4 hours, so that the raw materials are fully and uniformly mixed to obtain uniform ceramic blank slurry; finally, the problems that the lithium slag is difficult to treat, the requirement for ceramic materials is large, the preparation cost is high and the performance needs to be improved are solved, and energy-saving and environment-friendly treatment and resource recycling of lithium slag resources are achieved.