28results about "High gradient magnetic separators" patented technology

A method of processing a flow of waste material, the method comprising a first separation stage including transporting a flow of waste material along a first flow path, wherein a first rotating drum is arranged adjacent the first flow path and is configured to magnetically collect a first output of material from said flow, the first output comprising ferrous material. The method also includes a second separation stage comprising transporting the material from the first output along a second flow path, wherein a second rotating drum is arranged adjacent the second flow path and is configured to magnetically collect a second output of material from the first output, the second output comprising ferrous material. Each separation stage is configured with a separation characteristic different from the other such that the ferrous content of the first output is different from the ferrous content of the second output.

The application discloses a kind of weak magnetic mineral separation methods of magnetic seed circulating reinforced flocculation magnetic separation, raw material is broken to grinding ore to the fineness of-75µm content 60%-90%, ore powder is configured into ore pulp, 100-400 grams / ton of magnetic seed is added to ore pulp, at the speed of 700-1500rpm Realize selective flocculation, and the flocculation of ore pulp is given to high gradient magnetic separator, under the action of magnetic force, surface attachment magnetic seed's manganese mineral flocculation is selectively adsorbed to the surface of magnetic separation drum, and is collected after scraping plate, and it is manganese concentrate, and non-magnetic or weak magnetic gangue mineral is discharged as tailings with ore pulp flow, and high-grade manganese minerals are efficiently separated by using permanent magnet cylinder type magnetic separator to process manganese-loaded magnetic seed.The present application solves the problems of low recovery rate, complex process, poor recovery effect of micro-fine particles and high environmental risk faced by the current industry, significantly improves the manganese recovery rate and concentrate grade, and realizes the maximum utilization of manganese resources in tailings.

Disclosed herein is an apparatus for separation of diamagnetic particles of sub-micron diameter from a fluid. The disclosed apparatus includes a first magnetic coil including a hollow center and a separation unit including an outer enclosure and a second magnetic coil. The second magnetic coil includes a single-layer of windings of a magnetic wire and at least one nonmagnetic wire on a nonmagnetic core where the first magnetic coil houses the separation unit in the hollow inner center. Also disclosed herein is a method of using the apparatus.

This invention relates to the field of broken glass processing technology and discloses a gradient magnetic separation device for removing metallic impurities from broken glass. The device includes a worktable with a first rotating shaft rotatably mounted on its upper end. A magnetic suction assembly is sleeved on the outer surface of the first rotating shaft. The magnetic suction assembly includes a magnetic separation disk sleeved on the outer surface of the first rotating shaft. A magnetic roller and a non-magnetic roller are fixedly mounted on the outer surface of the magnetic separation disk. Side baffles are symmetrically fixed on the outer surface of the magnetic roller. Multiple support seats are positioned between the two side baffles, and an electromagnet is mounted on the upper end of each support seat. A driving disk is fixedly sleeved on the outer surface of the first rotating shaft, and a receiving disk is fixedly mounted on one side of the driving disk. This invention, through the progressive magnetic field design of the magnetic suction assembly, achieves the initial adsorption of strongly magnetic metals in broken glass and the progressive magnetization and firm capture of weakly magnetic stainless steel fragments, ultimately efficiently separating strongly and weakly magnetic metallic impurities, providing a pure raw material guarantee for high-proportion defect-free melting of broken glass.

A method is described for controlling an oil spill by seeding micron-sized magnetizable particles in the oil. Once seeded, particles can form a unique and preferential bond with the oil resulting in creation of a colloidal mixture. This bond forms as a result of a combination of forces including the intermolecular Van der Waal forces. Once this bond is formed, the oil is rendered magnetic and can be controlled and moved in response to a magnetic field. This can include removing oil from water, reducing the diffusion rate of oil on water, magnetically lifting oil from water or nonporous surfaces, as well as separating the magnetic material from the oil.

A vehicle-mounted in-situ magnetic field decontamination device for heavy metal contaminated soil with a retractable baffle is provided and includes a mounting frame, a plurality of magnetic rods circumferentially move along the mounting frame, the mounting frame and a lifting regulator are hinged with an agricultural machinery frame body, and an upper end of the mounting frame is supported by the lifting regulator. A magnetic particle recovery assembly is arranged below the upper end of the mounting frame. A retractable baffle assembly includes baffle springs and non-magnetic baffles, which each sleeve a corresponding magnetic rod. A turn-over channel for the retractable baffle assembly to move is provided at a middle part of mounting frame. Compression flaps are provided at both sides of turn-over channel, and an ejection flare for the ejection of the non-magnetic baffles is formed between free ends of the compression flaps at both sides.

This invention discloses a method for separating iron and titanium in high-iron, high-titanium vanadium-titanium magnetite, belonging to the field of mineral processing technology. To achieve the rational utilization of high-iron, high-titanium vanadium-titanium magnetite, this invention provides a method for separating iron and titanium in high-iron, high-titanium vanadium-titanium magnetite, comprising: crushing the high-iron, high-titanium vanadium-titanium magnetite to obtain crushed products; subjecting the crushed products to a first-stage grinding and magnetic separation to obtain magnetic concentrate 1 and tailings 1; subjecting magnetic concentrate 1 to a second-stage grinding and magnetic separation to obtain iron concentrate and tailings 2; combining tailings 1 and tailings 2 for screening and classification, and separately performing gravity separation on coarse and fine iron tailings to obtain titanium rough concentrate; finally, performing a three-stage high-intensity magnetic separation to obtain titanium concentrate. This invention employs a two-stage grinding and two-stage magnetic separation process, improving grinding efficiency, reducing over-grinding rate, separating tailings into coarse and fine particle sizes, improving gravity separation effect, and increasing yield while ensuring the grade of iron concentrate and titanium concentrate.

A method for processing a fluid sample (101, FS) containing a first target analyte includes introducing (402a-d) a first batch of magnetic particles (125,312a-d) into a fluid conduit (112,302a-d), the fluid conduit (125,312a-d) having a first open end (102,121,304a-d), a second open end (104,123, 306a-d), and a first electromagnetic trap (110,308a-d) between the first open end (102,121,304a-d) and the second open end (104,123,306a-d). The magnetic particles (125,312a-d) include a first receptor to bind the first target analyte in the fluid sample (101, FS). The method further includes activating (404a-d) the first electromagnetic trap (110, 308a-d) to trap and mix the magnetic particles (125, 312a-d) within the first electromagnetic trap (110, 308a-d). A flow of the fluid sample (101, FS) is introduced through the fluid conduit (112, 302a-d) from the first open end (102, 121, 304a-d) to the second open end (104, 123, 306a-d). Deactivating (412a-b) the first electromagnetic trap (110, 308a-d) releases the magnetic particles (125, 312a-d) from the first electromagnetic trap (110, 308a-d).

This invention discloses a flotation process for recovering apatite from iron ore tailings, belonging to the field of mineral processing technology. It includes the following steps: 1. High-gradient magnetic separation is applied to the iron ore tailings to recover and remove magnetic iron-bearing minerals. The removed iron-bearing minerals are returned to the main iron ore processing flow. The tailings enter a sluice to remove large gangue minerals, and then enter a thickener for concentration. 2. The underflow product from the thickener is subjected to sulfide mineral flotation and gypsum flotation to remove easily interfering impurities, followed by apatite collecting direct flotation to obtain apatite concentrate. 3. The apatite concentrate is subjected to ultrafine grinding for liberation and selective mudification of impurities, followed by closed-circuit apatite cleaning to obtain a qualified apatite concentrate product. This invention can achieve good recovery and utilization of apatite from iron ore tailings and has great economic feasibility.

This invention discloses a magnetic flotation combined beneficiation method for enhanced recovery of coarse and fine copper particles from copper tailings, belonging to the field of mineral processing technology. The copper tailings are adjusted into a slurry, and 200-260 g / t of lime is added and stirred. The slurry is subjected to pulsed high-gradient magnetic separation using a 1.5 mm rod medium, a magnetic field strength of 17500-18000 Gs, and a pulse frequency of 200-350 rpm. This yields magnetic separation concentrate and magnetic separation tailings, with the middlings from the magnetic separation process incorporated into the concentrate. The tailings from the magnetic separation process are concentrated and then adjusted into a slurry, undergoing a roughing and scavenging flotation process. A modifier and collector are added to the roughing process, and a collector is added to the scavenging process. The concentrate from the scavenging process is returned to the roughing process. The concentrate from the roughing process is incorporated into the concentrate from the magnetic separation process to form a rough concentrate, and the tailings from the scavenging process are the final tailings. The rough concentrate is regrinded and subjected to flotation again. By collecting the froth product in stages, concentrate 1 and concentrate 2 are obtained. This method can enhance the recovery of copper minerals lost in wide-grained copper tailings, and achieve comprehensive resource recovery and utilization.

To provide a novel magnetic separator which can use more effectively a magnetic field formed by magnetic means used therein.SOLUTION: A magnetic separator, which adsorbs magnetic material particles existing in a flowable processed product by a magnetic field and separates the particles from the processed product, has a partition wall which partitions magnetic means for generating the magnetic field and the processed product and can let at least part of the magnetic field generated from the magnetic means out into the processed product. A region for a magnetic material is provided on a surface on the processed product side of the partition wall.SELECTED DRAWING: Figure 2A

The application discloses a kind of UHPC waste efficient recovery and dust treatment method and device, and the application relates to industrial dust treatment technical field, by whole-process negative pressure cooperation gas collection, pre-magnetic separation impurity, bipolar charge conditioning, gradient coupling filtration, self-adapting dust cleaning and micro-powder classification recovery, realize UHPC waste efficient recovery and dust integrated processing, the advantages of the present application are that: by the high-gradient magnetic separation pre-impurity removal, bipolar charge dust conditioning and gradient coupling charged filtration of the cooperative processing technology constructed for the special characteristics of UHPC dust, intercept and separate steel fiber debris in dust-containing air current from the source, simultaneously carry out charged agglomeration modification and surface adhesive group destruction to superfine viscous dust, then cooperate the double action of coulomb force adsorption and physical interception of gradient coupling charged filter material, break the dilemma that existing dust removal technology cannot consider superfine dust high-precision interception and filter material irreversible consolidation prevention and control.

Disclosed herein is an apparatus for separation of diamagnetic particles of sub-micron diameter from a fluid. The disclosed apparatus includes a first magnetic coil including a hollow center and a separation unit including an outer enclosure and a second magnetic coil. The second magnetic coil includes a single-layer of windings of a magnetic wire and at least one nonmagnetic wire on a nonmagnetic core where the first magnetic coil houses the separation unit in the hollow inner center. Also disclosed herein is a method of using the apparatus.

The present invention relates to a valuable metal reactant, a valuable metal breaker, and a valuable metal recovery method. The valuable metal reactant of the present invention is a valuable metal reactant containing valuable metals recovered from a waste battery, and includes: a first valuable metal-containing object containing an alloy or an oxide containing at least one of iron (Fe) and phosphorus (P); a second valuable metal-containing object containing a non-magnetic material; and a carbon compound containing carbon, the first valuable metal-containing object containing a third valuable metal-containing object containing a magnetic material and a first lithium compound attached to the surface of the third valuable metal-containing object, the lithium content of the first lithium compound being 1.5% or more by weight in the first valuable metal-containing object.

According to an embodiment of the present invention, a valuable metal reactant comprises a first valuable metal-containing material, a second valuable metal-containing material, and carbon which are recovered from waste batteries, and satisfies Expression 1, wherein the first valuable metal-containing material includes at least one of nickel (Ni), cobalt (Co), or manganese (Mn) in the form of a metal or an oxide, and the second valuable metal-containing material may include a non-magnetic material. [Expression 1] 0.2 ≤ ([O]) / ([Ni]+[Co]+[Mn]) ≤ 1.2 In Expression 1, [O], [Ni], [Co], and [Mn] refer to the mol% of the respective elements.

The application discloses a method for obtaining iron concentrate by in-situ magnetic separation in a copper slag sulfuric acid leaching process, and belongs to the technical field of metallurgical solid waste resource utilization and hydrometallurgy. In view of the problems of the complex inlaying of magnetite, iron olivine and valuable metal oxysulfide in copper smelting slag, low silicon-iron separation efficiency of traditional processes and high leaching energy consumption, the application realizes the strengthened leaching of valuable metals, the secondary magnetic separation of magnetite and silicon dioxide and the collection of iron concentrate in the reactor by constructing a rotating magnetic field to strengthen the regulation system. The process flow is short, the cost is low, and the metal leaching solution can be directionally purified by a wet purification and separation technology, so that high-value-added products can be efficiently separated and prepared.

A magnetic separation apparatus (100) is provided for separating magnetic particles from a test sample in a multi-well plate (1000). The magnetic separation apparatus has a housing (110), a support (120) for supporting the multi-well plate above the housing when in use, a magnet array (130) mounted on a carrier (140) below the support, and a drive mechanism (150) configured to raise and lower the carrier relative to the support to change a height position of the magnet array. The drive mechanism is operable to stably hold the magnet array at a plurality of height positions, including a raised position, a lowered position, and a plurality of working positions between the raised position and the lowered position.

The application belongs to the field of quartz sand magnetic separation, in particular to a quartz sand iron removal magnetic separation device, which comprises a stepped box, a first-stage electromagnetic roller is mounted on the top of the inside of the stepped box, an isolation belt one for driving the first-stage electromagnetic roller to rotate is sleeved on the outside of the first-stage electromagnetic roller, a plurality of second-stage electromagnetic rollers arranged in steps are mounted in the inside of the stepped box from top to bottom, a driving roller two capable of rotating is arranged on one side of the second-stage electromagnetic roller, the driving roller two and the second-stage electromagnetic roller are drivingly connected through an isolation belt two, a sand discharge disc horizontally arranged is fixedly connected to the end of the stepped box, and a discharge hole is formed in the end of the stepped box near the bottom; through the arrangement, the magnetic separation parts are arranged in steps from high to low, and the quartz sand is gradually subjected to magnetic separation screening, so that the metal impurities in the quartz sand can be effectively removed, and the quality of the final quartz sand is ensured.

The present invention relates to an EMF filter device with improved heat exchange efficiency, the EMF filter device including: a filter body having a cylindrical shape and including a central pipe; a plurality of coil units stacked to surround the central pipe of the filter body, in which each of the coil units includes circular coil plates surrounding the central pipe and an insulating material provided between the circular coil plates; a plurality of flow path compartment partitions extending from an inner wall part of the filter body, making contact with outer wall parts of the coil units, and arranged at a predetermined angular interval on the inner wall part of the filter body; a plurality of cooling flow path spacers arranged between the coil units; and an insulating oil cooler connected to the filter body, and configured to allow cooling oil to circulate inside the filter body for cooling.

This invention discloses a method for recycling cold-rolled sludge, belonging to the field of cold-rolled sludge recycling technology. The method includes: pre-oxidizing the iron component in the cold-rolled sludge to obtain a pre-oxidized slurry; adding a composite extractant to the pre-oxidized slurry for extraction, and simultaneously adding a eutectic solvent demulsifier-dispersant and stirring to obtain a mixture; subjecting the mixture to magnetic separation to obtain a residual liquid phase and an oil-solid magnetic polymer; allowing the residual liquid phase to stand to obtain an upper extracted oil phase and a lower aqueous phase; subjecting the upper extracted oil phase to low-temperature vacuum distillation to obtain recovered lubricating oil; subjecting the oil-solid magnetic polymer to low-temperature catalytic cracking to obtain gaseous products and solid residues; condensing and separating the gaseous products to obtain cracked oil and non-condensable combustible gas; and cooling and grinding the solid residue to obtain magnetic iron oxide powder. This invention, employing the above-mentioned method for recycling cold-rolled sludge, solves the technical bottlenecks existing in cold-rolled sludge and achieves simultaneous, efficient recycling and high-value utilization of lubricating oil and iron powder.

The application provides a method for removing iron from high-iron bauxite mother liquor after grinding and magnetic separation, and belongs to the field of mineral processing. The method comprises the following steps: grinding and treating mixed ore slurry of high-iron bauxite and circulating mother liquor to obtain alkaline ore slurry; the circulating mother liquor is a caustic alkali circulating liquid generated in an alumina dissolution process; using the circulating mother liquor as ore unloading water, the alkaline ore slurry is subjected to magnetic separation to remove iron to obtain iron-removed ore slurry and iron-rich ore slurry; the iron-removed ore slurry is sent to the alumina dissolution process; and the iron-rich ore slurry is subjected to separation treatment to obtain the circulating mother liquor and iron concentrate. In the application, iron minerals are efficiently removed under the premise of not introducing additional moisture, after the bauxite minerals are fully dissociated and before entering the dissolution process, so as to reduce alkali consumption, reduce the amount of red mud, and realize the resource utilization of iron minerals.

A switchable magnetic filter for collecting metallic particles in a fluid flowing through a vessel, comprising a handle for rotatably or slidingly engaging a magnetic assembly within a housing to an ON position to create a magnetic field outside of the housing to collect and retain metallic particles against the outer wall of the housing, and to an OFF position to shunt the magnetic field within the housing to release the metallic particles from the outer wall of the housing so they may be removed from the fluid for cleaning purposes.

The application discloses a method for recovering coarse-grained gold from a flotation gold concentrate, and relates to the technical field of mineral processing. The method comprises the following steps: mixing surface-activated ore pulp and magnetic nanofluid bubbles according to a set ratio, and conveying the mixture to a mineralization pipeline with a gradient magnetic field applied thereto, and performing mineralization contact under the magnetic force driving of the gradient magnetic field to obtain a gas-solid-liquid mineralization mixture; introducing the gas-solid-liquid mineralization mixture into a flotation separation device with an axial magnetic field applied thereto to perform magnetic stable flotation separation, collecting a foam product from the upper part of the flotation separation device as a gold concentrate, and discharging tailing pulp containing magnetic nanoparticles from the bottom. The method realizes high-probability and forced contact and firm adhesion between the bubbles and the activated particles by conveying the surface-activated ore pulp and the magnetic nanofluid bubbles to the mineralization pipeline with the gradient magnetic field applied thereto to perform mineralization contact, and enhances the selectivity and efficiency of the mineralization process.

An iron removal device includes a housing having a washing liquid inlet and a washing liquid outlet, a head coupled to the housing and configured to spray a washing liquid onto a screen stack in a washing liquid flow path leading from the washing liquid inlet to the washing liquid outlet within the housing, a washing liquid inlet pipe coupled to the head and configured to supply the washing liquid to the head, and a washing liquid outlet pipe coupled to the housing and configured to discharge the washing liquid out from the housing. The head includes a body accommodating the washing liquid, and spray parts separately on a washing liquid spray surface of the body facing the screen stack and configured to spray the washing liquid onto the screen stack.

Apparatus and associated methods relate to separate ferromagnetic impurities from bulk battery materials. In an illustrative example, a ferromagnetic impurity separation system (FISS) may receive a sample vessel including an enclosed sample of bulk battery materials. The FISS, for example, may include a variable magnetic flux generator (e.g., an electromagnet) disposed at a position separated from the sample vessel. The FISS may also include an agitation unit having a translational motor and a rotational motor configured to rotate the sample vessel about a central axis, and to translate a position of the central axis of the sample vessel. For example, in an operation mode, the variable magnetic flux generator and the agitation unit may apply a predetermined magnetic flux, a predetermined angular velocity and a predetermined velocity to the sample vessel. Various embodiments may advantageously separate ferromagnetic impurities from the enclosed sample concisely without contaminating the sample.

The application discloses a cleaning method for a high-gradient strong magnetic machine medium box, and belongs to the technical field of high-gradient strong magnetic machine equipment maintenance. The method is aimed at the problems of incomplete removal, low efficiency and high equipment damage rate in the cleaning of the medium box in the prior art, and provides a composite cleaning method integrating physical modification, chemical corrosion and ultrasonic cavitation. Through thermal stress damage to the cemented mineral crystal lattice structure combined with organic acid chelation, "brittleness-corrosion" synergy is realized, non-contact cleaning is adopted to reduce equipment damage, a parameter quantization control model is established to realize digital control of the cleaning process, and the quality stability between batches is improved. The method can realize efficient descaling, the removal rate of cemented minerals is greater than or equal to 98%, the number of single batch processing is greater than or equal to 20 times, the damage rate of the medium rod is less than or equal to 1%, the cleaning cycle is shortened by more than 60% compared with the traditional method, and the method has the advantages of high efficiency, energy saving, reduction of equipment damage, cost reduction and safe and reliable operation, and is suitable for large-scale production and application.