112 results about "Magnetic minerals" patented technology

The invention discloses a fluoride-free flotation-microbiological leaching-multistage magnetic separation synergistic tailing purification process, which takes mine tailings as raw materials and is realized by the following steps: 1, fluoride-free flotation desliming and impurity removal: replacing hydrofluoric acid with a novel anion collector (fatty acid derivative), and preferentially removing mica and feldspar under the condition that the pH is 2.5-3.5; 2, removing iron and aluminum by microbiological leaching: leaching for 48 hours at the temperature of 35 DEG C by utilizing an acidophilus bacillus ferroxidans bacterial solution, and dissolving Fe2O3 and Al2O3 in a wrapped state; 3, high-gradient magnetic separation refining: removing magnetic minerals through 1.2 T strong magnetic separation, and then separating weak magnetic impurities through 0.8 T weak magnetic separation; the indexes of the final product are as follows: the purity of SiO2 is greater than or equal to 99.9%, the whiteness is greater than or equal to 94% (ISO standard), the content of Fe2O3 is less than or equal to 80ppm, Al2O3 is less than or equal to 1200ppm, and the requirements of electronic grade (IOTA-4 standard) quartz powder are met.

The invention discloses a method for preparing high-purity quartz and recovering an iron element based on high-silicon tailings, and belongs to the technical field of comprehensive utilization of resources and preparation of high-purity quartz. According to the method, high-silicon tailings are sequentially subjected to mineral dissociation, low-magnetic-field roughing, high-magnetic-field scavenging, flotation and ultrasonic acid leaching treatment, and refined quartz is obtained; and carrying out multi-stage gradient chloridizing roasting and hot-pressing acid leaching treatment on the refined quartz of which the gas-liquid inclusion index and transparency meet the requirements to finally prepare the high-purity quartz of which the SiO2 purity is greater than or equal to 99.995%. In addition, for strong magnetic minerals generated in the magnetic separation process, the iron content of the strong magnetic minerals reaches the standard, the strong magnetic minerals react with the acid leaching filtrate under the ultrasonic strengthening condition to leach iron ions, and iron-rich filtrate is subjected to an iron precipitation reaction to generate iron carbonyl. The method provided by the invention not only provides a reliable judgment basis and a complete technical route for preparing high-purity quartz from the high-silicon tailings, but also opens up a new way for resource utilization of the tailings, and has remarkable industrial application value and environmental benefits.

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 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 discloses a vertical ring magnetic separation device adopting a saddle-shaped coil and a magnetic separation method of the vertical ring magnetic separation device, and relates to the technical field of mine metallurgy, the vertical ring magnetic separation device comprises an integral support, a magnet system, a rotating ring, a feeding assembly and a discharging assembly, and the magnet system is fixedly arranged on the integral support and surrounds part of the rotating ring; the magnet system comprises at least one saddle-shaped coil, and the arc-shaped face, facing the rotating ring, of the saddle-shaped coil is matched with the ring face of the rotating ring. The saddle-shaped coil is adopted, the arc-shaped working face of the saddle-shaped coil is matched with the height space of the annular contour of the rotating ring, magnetic field distribution is fundamentally optimized, magnetic field energy is highly concentrated and accurately acts on a magnetic medium filled in the rotating ring, the field intensity far exceeding that of a traditional runway-shaped coil can be obtained, and the collecting capacity of weak magnetic minerals is remarkably improved; the optimization of the magnetic field further reduces the dependence on the magnetic conductive yoke, so that the overall structure weight of the magnet system is reduced, and the cost is reduced.

The invention relates to the technical field of ore separation, in particular to titanium-zirconium ore tailing check separation equipment and method.The titanium-zirconium ore tailing check separation equipment comprises a variable-diameter chute and a magnetic enrichment assembly, and the variable-diameter chute comprises a low-speed layer, a high-speed layer and a medium-speed layer which are sequentially connected from top to bottom; the magnetic enrichment assembly is arranged on the inner ring of the variable-diameter chute; tailing ore pulp spirally flows at a low speed when entering the low-speed layer, magnetic minerals in the tailing ore pulp are attracted to the inner edge to complete sufficient sedimentation, radial layering is conducted under the centrifugal force effect of high-speed spiral flowing when the tailing ore pulp enters the high-speed layer, and magnetic aggregates generated by the magnetic minerals are disintegrated by repulsive force at the moment; ilmenite and zirconite are fully separated to improve the grade, magnetic minerals are enriched towards the inner edge again while the flow speed is reduced after the ilmenite and the zirconite reach the medium-speed layer, the ilmenite with the enriched inner edge is prevented from being scoured for the second time, and therefore the recycling rate is improved; the problem that the tailing recycling rate is low due to the fact that the fine grain content of the tailings is high and the sorting difficulty is high is solved.

The invention discloses a fluoride-free strong-acid-free reverse flotation method for extracting a high-purity quartz sand flotation product from granite pegmatite, and belongs to the technical field of mineral flotation. The method comprises the following steps: carrying out graded crushing and ore grinding on granite pegmatite to obtain slurry to be treated; carrying out wet magnetic separation on the to-be-treated slurry to obtain ore pulp after magnetic separation and magnetic-containing minerals; the pH value of the ore pulp is not adjusted, reverse flotation is carried out in the presence of a quartz mixed inhibitor, and a feldspar product and a quartz product are obtained; the quartz mixed inhibitor is a combination of a component A and a component B, wherein the component A is selected from at least one of sodium metasilicate, sodium tripolyphosphate, sodium hexametaphosphate, carboxymethyl cellulose and salinized water glass; the component B is selected from at least one of guar gum, Arabic gum, sodium humate and citric acid. The method is free of fluorine and strong acid, green and efficient, and is a method for preparing high-purity quartz sand from pegmatite with high industrial application feasibility.

A method and device for sorting lump ore relate to the mining and processing industry, and more particularly to technology for pre-processing ores containing a valuable component that has a low concentration and low mass fraction in the rock mass which correlate with the distribution of the component, or for pre-processing ores containing minerals with low magnetic susceptibility or non-magnetic minerals. The working of the device and the method are based on a 3D electromagnetic method which utilizes two systems: a 3D scanner (1) and an inductive sensor system (3) with electromagnetic coils. The two systems operate in a consolidated manner, with the 3D scanner (1) system acting as a master system and the inductive sensor system (3) acting as a slave system. The inductive sensor system (3) is configured in the form of a matrix (6) of coils, the parameters of which are stored in a computing unit (10). The 3D scanner (1) scans lumps of ore and generates a data array which is also supplied to the computing unit (10), which processes the data array and determines the order of activation of individual sensors.

The invention discloses a method for efficiently separating powdery lean magnetite through a magnetic roller, and belongs to the technical field of mineral processing. The method comprises the following steps: firstly, carrying out aggregate dispersion on mineral aggregates before selection, and dispersing aggregates by utilizing shearing force generated by vibration; and then the feeding material layer of the thinning magnetic roller is quantitatively and rapidly conveyed, so that secondary aggregates are prevented from being formed. According to the method, through collaborative optimization of three elements of high-frequency vibration of loose materials, high ore feeding speed and high weak magnetic field intensity, the bottlenecks of traditional fine ore dry magnetic separation in the aspects of material dispersity, separation dynamics and poor magnetic mineral recovery efficiency are broken through; accurate capture is achieved, separation is enhanced, the magnetic iron grade of separation tailings is reduced, and the tailing throwing rate of separation is increased.

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.

The invention relates to a silica ore dressing method which comprises the following steps: step 1, crushing raw ore of silica ore, step 2, grinding the crushed silica ore by adopting a ball mill, step 3, carrying out graded desliming treatment on the ground silica ore by using a hydrocyclone, step 4, carrying out weak magnetic separation on the deslimed silica ore, and step 5, carrying out magnetic separation on the deslimed silica ore. And 5, the non-magnetic material subjected to weak magnetic separation is subjected to strong magnetic separation, and silica concentrate is obtained. Before the ore is subjected to strong magnetic separation, strong magnetic minerals are removed through weak magnetic pre-separation, the strong magnetic separator is effectively prevented from being blocked, the operation stability and the production continuity of equipment are improved, various magnetic impurity minerals including intergrowth particles can be removed to the maximum extent through the whole technological process, and the production efficiency is improved. Such as hematite, limonite, biotite, ilmenite, pyrite and garnet.

The present application relates to the technical field of ore recovery, and particularly relates to a comprehensive recovery and utilization method of complex associated magnetite, which comprises a pretreatment stage, a sulfur tailing reinforced recovery and a desulfurization flotation operation. The magnetic roller separation device designed by the gradient magnetic field realizes effective separation of magnetic minerals and sulfur-containing minerals, and the two-stage wet magnetic separation equipment is used to improve the recovery rate of magnetic minerals, and then the sulfur content of the iron concentrate is reduced by optimizing the reagent adding mode and the flotation conditions. The present application can significantly reduce resource waste, reduce energy consumption and environmental pollution, and provides a green and efficient comprehensive recovery and utilization solution for complex associated magnetite.

The utility model relates to the technical field of ore magnetic separation, and discloses a dry drum-type ore magnetic separator which comprises a magnetic separator main body, a belt conveying device is arranged at the bottom of the magnetic separator main body, and a driving motor is fixedly connected to the top of the magnetic separator main body. According to the automatic sorting machine, the magnetic roller can automatically move to the position below the magnetic roller to carry out sorting work, then in the rotating process of the cam disc, the operation is repeated, so that the discharging plate rotates, the discharging port of the discharging plate does not coincide with the discharging port of the discharging partition plate, discharging work is stopped, then the discharging plate continues to rotate, and when the discharging ports coincide, discharging work is achieved again; and therefore, the device can control the discharging speed and the discharging amount, excessive material accumulation in the magnetic separator during continuous feeding is avoided, effective separation of magnetic minerals and non-magnetic minerals is prevented from being affected, and the separation effect of the magnetic separator is improved.

The invention discloses a beneficiation process for carbon-containing low-zinc pyrite, which relates to the technical field of mineral processing. The carbon-containing low-zinc pyrite is crushed, ground, and classified by a hydrocyclone to obtain slurry of a required particle size. Subsequently, a desludging cyclone and a flotation machine are used for combined decarbonization. Then, a high-efficiency selective collector is used to float the sulfur-selective flotation ore to obtain pyrite coarse concentrate and pyrite coarse tailings. A "one coarse, two fine, two scavenging, and one fine tailings are separately selected and discarded" process is adopted to improve the flotation rate and the grade of the flotation concentrate. Finally, a magnetic drum is used to scavenger the final tailings, and sulfur-containing magnetic minerals in the final tailings are recovered to improve resource utilization.

The utility model discloses a sorting device. The sorting device comprises a feeding part, a first collecting part, a second collecting part, a winnowing part and a magnetic separation part, the feeding part is used for inputting sorting samples, and the sorting samples fall from the discharging end of the feeding part to form a falling path; at least part of the second collecting piece is located on the falling path, the first collecting piece is located on one side of the falling path, and the second collecting piece is arranged below the first collecting piece in the vertical direction; the winnowing piece is arranged on one side, deviating from the first collecting piece, of the falling path, and is used for blowing light sand minerals in the sorted samples into the first collecting piece; and the magnetic separation piece is arranged below the second collection piece and is used for adsorbing magnetic minerals in the separated samples into the second collection piece through the magnetic force of the magnetic separation piece.

The invention relates to the technical field of tailing recovery, and discloses a down-flow groove body drum type tailing recovery machine which comprises a rack, a motor, a permanent magnetic drum, a groove body, a flow guide plate and an output port and is used for separating and screening magnetic minerals in tailing slurry, and a balance compensation module comprises a pair of calibration plates and two pairs of floating ball rods. Every two floating ball rods are slidably connected to the middles of the two ends of the calibration plate, a displacement power source in the vertical direction is provided for the floating ball rods by means of liquid level buoyancy of tailing slurry capacity change in the rack, vertical cylinders are fixedly connected to the positions, located on the outer walls of the floating ball rods, of the two sides of the top of the calibration plate, and the outer walls of the floating ball rods are slidably connected to the inner walls of the vertical cylinders. Liquid level fluctuation interference is reduced, and the displacement stability of the floating ball rod in the vertical direction is guaranteed; through fluctuation change of the separation liquid level, the lifting partition plate reversely moves along with the change of the separation liquid level, the liquid level height of the ore pulp separation area is adjusted, the separation contact range between the permanent magnetic roller and ore pulp is dynamically matched, and it is guaranteed that magnetic mineral separation and screening are sufficient and stable.

The invention relates to the technical field of metallurgical solid waste resource utilization, in particular to a method for enriching iron in vanadium extraction tailings and spiral separation equipment, and the method comprises the following steps: pretreatment, crushing and screening: feeding the vanadium extraction tailings into a jaw crusher for coarse crushing until the particle size is less than or equal to 50mm; the particle size of a crushed product is controlled to be smaller than or equal to 10 mm, the fine crushed product is screened through a linear vibrating screen, the size of a screen hole is 2 mm, oversize products return to the impact crusher to be crushed again, undersize products enter the next step, large gangue and impurities in the tailings can be removed in the step, and energy consumption is reduced for follow-up ore grinding operation. The combined technological process of pretreatment, magnetic separation roughing, spiral gravity separation and magnetic separation concentration is adopted, strong magnetic minerals are rapidly recovered through magnetic separation, then spiral gravity separation is adopted for weak magnetic and intergrowth minerals, the advantages of different separation technologies are fully played, and the problem that the recovery rate of the weak magnetic minerals such as hematite is low through a single magnetic separation method is solved.

The utility model belongs to the technical field of ore magnetic separation, and particularly relates to a dry magnetic separator for garnet tailings, which comprises a conveyor, side supports are fixedly connected to two sides of a conveyor frame respectively, a plurality of openings are formed in the surfaces of the side supports, magnetic separation assemblies are mounted in the openings, and the magnetic separation assemblies are fixedly connected with the conveyor frame. The magnetic separation assembly comprises a first rotating disc and a second rotating disc which are symmetrically distributed in the conveying direction of the conveyor, the first rotating disc and the second rotating disc are rotationally connected with the two openings correspondingly, and two magnetic separation cylinders are arranged on the opposite sides of the first rotating disc and the second rotating disc from top to bottom in a penetrating mode correspondingly; the magnetic ore grains in the mineral aggregate are adsorbed through rotation of the adsorption barrels, and the adsorption barrels are switched when more magnetic ore grains are adsorbed on the surfaces of the adsorption barrels, so that the magnetic ore grains adsorbed on the surfaces of the adsorption barrels can be cleaned in a non-stop state.

The application discloses a beneficiation method of low-grade tin ore by using magnetic separation and flotation. The beneficiation method of low-grade tin ore by using magnetic separation and flotation comprises the following steps: step (1), crushing and grinding the low-grade tin ore, using water as a leaching agent, and separating by a wet magnetic separator to obtain magnetic minerals and magnetic tailings; step (2), drying the magnetic tailings after the magnetic separation, and then placing the tailings in a flotation agent to perform a flotation treatment to obtain flotation minerals and flotation tailings; step (3), concentrating the flotation tailings after the flotation treatment to obtain concentrated tailings; and step (4), smelting the concentrated tailings to finally obtain tin metal, sulfide, silicate, oxide and impurities. The application combines the magnetic separation and the flotation to improve the ore separation efficiency and the recovery rate, the water is used as a leaching liquid in the magnetic separation process to reduce the cost, and no new impurities are introduced, and the flotation agent can reduce the surface tension of the tin ore to improve the leaching rate.

The invention relates to the technical field of tailing treatment, in particular to tailing washing equipment for mine beneficiation, which comprises a rack and a spiral chute, the spiral chute is vertically arranged on the rack, a top plate of the rack is communicated with a blanking pipe, and the blanking pipe leads to the top of the spiral chute; the magnetic separation device further comprises a magnetic separation pipe obliquely installed on the top of the rack, a first material pipe is vertically arranged at the bottom of the pipe wall of the lower section of the magnetic separation pipe and fixedly communicated with the discharging pipe, a feeding connector is vertically arranged at the position, close to the top of the pipe wall of the upper section, of the middle section of the magnetic separation pipe, and the feeding connector is communicated with a feeding pipe in a butt joint mode. The feeding pipe is used for adding ore pulp to be washed into the magnetic separation pipe. Magnetic separation and spiral chute reselection are combined, magnetic ore pulp is separated through a strong magnetic column, then density layering washing separation is conducted on non-magnetic ore pulp, efficient, continuous and fine separation of magnetic and non-magnetic minerals is achieved, and the separation efficiency and the recovery rate are remarkably improved.

The application discloses a method for recovering lithium concentrate from lithium-containing ores. The method comprises the following steps: adopting a SABC crushing and grinding system to perform crushing and grinding treatment on the lithium-containing ores to obtain material with a particle size of no more than 0.25 mm; performing first magnetic separation treatment on the material to obtain first magnetic minerals and first non-magnetic minerals; performing gravity separation treatment on the first non-magnetic minerals to obtain gravity separation non-lithium concentrate and gravity separation tailings, wherein the gravity separation treatment comprises in-sequence cloth apron chute treatment and table treatment; performing desliming classification treatment on the gravity separation tailings to obtain ore sand and ore slime; and performing flotation treatment on the ore sand to obtain lithium concentrate. The method not only has simple production process and low production cost, but also is beneficial to improving the recovery rate of lithium-containing ores, especially super-low-grade lithium-containing ores, and the grade of lithium concentrate, effectively enhancing the resource comprehensive utilization rate and the anti-risk response capability, activating the difficult-to-mine dead ores, and realizing full resource utilization of low-grade lithium-containing ores.

The utility model discloses an automatic ore discharge de-ironing separator for mining, which comprises a frame body and a fixed frame, a conveyor belt is arranged in the frame body, the frame body penetrates through the fixed frame, a sliding plate is arranged in the fixed frame, first sliding chutes are arranged on both sides of the fixed frame, the sliding plate moves along the groove direction of the first sliding chutes, and the first sliding chutes are arranged on the fixed frame. A lead screw is rotationally connected into the fixing frame, the lead screw penetrates through the sliding plate and is in threaded connection with the sliding plate, a motor is fixedly connected to the top of the fixing frame, and one end of an output shaft of the motor penetrates through the fixing frame and is fixed to the lead screw. According to the iron remover, the distance between the magnetic ring and the conveying belt can be changed, so that iron ore or magnetic minerals can be better adsorbed and removed, the screening effect of iron impurities or magnetic minerals is improved, the adsorbed iron impurities or magnetic minerals can be conveniently separated from the magnetic ring, the use convenience of the iron remover is improved, and the iron remover is suitable for popularization and application. And workers can conveniently collect discharged iron impurities or magnetic minerals.

The invention relates to the technical field of mineral processing, and particularly discloses a method for recovering titanium from vanadium titano-magnetite tailings, which comprises the following steps: carrying out size classification by adopting a high-frequency vibrating screen, carrying out table gravity separation on products with different size fractions and whole size fractions, and preliminarily separating out heavy mineral components; according to the magnetic strength of the minerals, the magnetic minerals are separated gradually, and the non-magnetic minerals are thrown away; the optimal field intensity is determined, shaking table gravity separation is conducted on the heavy minerals of the selected size fraction, and high-intensity magnetic separation impurity removal is conducted on obtained concentrate; the magnetic separation concentrate is subjected to desulfurization flotation, a collecting agent and a foaming agent are sequentially added, and sulfide ore is obtained after roughing and scavenging; carrying out titanium flotation on the desulfurized and floated tailings, collecting, controlling the roughing concentration, the flotation fineness and the concentration, and carrying out titanium flotation by adopting one-time roughing and five-time concentration; and concentrate obtained after separation is subjected to low-intensity magnetic separation iron removal to obtain titanium concentrate, and the problem that in the prior art, micro-grade ilmenite is difficult to recycle is solved.

The mine sludge conveying device comprises a rack, a plurality of material guiding plates and a plurality of magnetic rollers are alternately arranged at the upper end of the rack, the material guiding plates and the magnetic rollers are obliquely arranged from top to bottom in the arrangement direction, each magnetic roller comprises a rotating roller and a plurality of permanent magnet rings, and the rotating rollers are rotationally connected with the rack; the rack is provided with a conveying belt, the magnetic rollers are sleeved with the conveying belt, the conveying belt is in sliding connection with the corresponding permanent magnet rings, the rack is rotationally connected with a driving roller corresponding to the conveying belt, the conveying belt is provided with a plurality of first thin iron belts, and a magnetic part is further arranged in the conveying belt. The magnetic part is used for replacing the permanent magnet ring, a collecting box corresponding to the conveying belt is fixedly arranged on the rack and located below the conveying belt, and a cleaning assembly is arranged on the side, away from the magnetic roller, of the collecting box and used for cleaning magnetic minerals attached to the conveying belt. The iron removal device has the effect of improving the convenience of the iron removal process.

The utility model relates to the technical field of mineral separation devices, and provides a fine screening mineral separation device which comprises a screening box, a feeding port, two discharging ports, a magnetic separation assembly, a conveying mechanism, a material stirring assembly, a connecting frame and a vibration mechanism. The feeding port and the two discharging ports communicate with the screening cavity, the conveying mechanism is arranged in the screening cavity and used for conveying mineral aggregates to the magnetic separation assembly, the material stirring assembly is arranged on the conveying mechanism and used for stirring the mineral aggregates on the conveying mechanism evenly, and the connecting frame is arranged between the conveying mechanism and the magnetic separation assembly. The connecting frame is fixedly connected to the inner bottom wall of the screening cavity, the top end of the connecting frame is arranged to be an inclined face, and the vibrating mechanism is arranged at the bottom of the magnetic separation assembly and used for raising accumulated mineral aggregate. By means of the technical scheme, the problem that in the prior art, the screening fineness of magnetic mineral aggregates in a magnetic mineral separation device is poor is solved.

The invention belongs to the technical field of magnetic system construction of magnetic separation equipment, and particularly relates to an equal-magnetic-field permanent magnet system which comprises two symmetrically-arranged magnetic pole sets, each magnetic pole set comprises a magnetic pole head and an enhanced magnetic block set, the width of each magnetic pole head is L, the height of each magnetic pole head is H, and H / L is larger than or equal to 2 and smaller than or equal to 3; a first arc-shaped protrusion and a second arc-shaped protrusion are fixedly arranged on the opposite sides of the magnetic pole head, the central angle alpha of the first arc-shaped protrusion and the central angle alpha of the second arc-shaped protrusion are the same and larger than or equal to 20 degrees and smaller than or equal to 40 degrees, the radius of the first arc-shaped protrusion and the radius of the second arc-shaped protrusion are R1 and R2, and R1 is larger than or equal to 2 * R2 and smaller than or equal to 3 * R2. The equal magnetic force field is located between the two first arc-shaped protrusions, and the distance between the equal magnetic force field and the sides, away from the second arc-shaped protrusions, of the first arc-shaped protrusions ranges from 0.1 * R1 to 0.45 * R1. The equal magnetic force field is generated in the magnetic system, and the inclination angle of the magnetic system is adjusted, so that the effect of selecting magnetic minerals with different component forces in mineral separation can be achieved, and the separation precision is effectively improved.

The invention belongs to the technical field of mineral magnetic separation, and relates to a magnetic mineral and non-magnetic mineral layered magnetic separation device which comprises a base, an outer cylinder connected to the upper side of the base and an ore pulp bearing frame communicated to the bottom of the outer cylinder. A first magnetic system is arranged between each inner ring and the outer cylinder, and the multiple first magnetic systems are sequentially opened and closed from bottom to top so that magnetic minerals in the ore pulp bearing ores can be separated out through layered magnetic separation along the multiple inner rings. The multiple first magnetic systems are sequentially started and stopped from bottom to top so that magnetic minerals in ore pulp bearing ores can be separated out through layered magnetic separation along the multiple inner rings, and therefore the situation that non-magnetic minerals are accidentally taken away upwards due to loss generated by active movement is avoided; and magnetic minerals with small particle sizes can be effectively separated through magnetic separation according to the vertical gradient magnetic field change principle, and the magnetic separator is more suitable for the environment where minerals are thick such as red mud iron separation.

The application discloses a deep-sea turbidity current in-situ monitoring device with a magnetic detection function, which comprises a glass cover, wherein an excess pore pressure monitoring assembly is fixedly connected in the glass cover, the upper and lower ends of the excess pore pressure monitoring assembly are extended out of the glass cover, a buried-prevention support is fixedly connected to the bottom of the glass cover, and an information processing assembly is fixedly sleeved outside the excess pore pressure monitoring assembly. The magnetic flux gate is arranged at the collection inlet of the non-magnetic turbidity current collector, and the installation structure close to the magnetic flux gate is made of non-magnetic engineering plastic, so that the influence of the device structure on the magnetic field detection result is reduced. When the turbidity current event occurs, the device continuously records the relative change trend of the total magnetic field intensity of the monitoring point, and correlates the abnormal change of the magnetic signal with the monitoring data such as flow velocity, excess pore pressure and turbidity in time sequence, so that whether the turbidity current carries high-concentration magnetic minerals is judged, and an integrated observation scheme is provided for the turbidity current movement process and the magnetic mineral transportation research.

This invention relates to the field of mineral screening technology, and discloses a mineral screening system and method. The system includes: a collection module for collecting minerals from raw mineral materials; a conveying module for conveying the collected minerals to a next processing module; a processing module for removing impurities and grading the minerals; and a magnetic separation module for magnetically separating the graded minerals to separate magnetic minerals. The method includes: collecting minerals from raw mineral materials; conveying the collected minerals to the next processing module; removing impurities and grading the minerals; and magnetically separating the graded minerals to separate magnetic minerals. By setting up a dynamic stirring unit and a stratified settling zone, the washing module can more effectively remove impurities from the minerals, improve the cleaning effect, and thus improve the quality of the final product.

The invention relates to the technical field of miners, in particular to an efficient magnetic separation device for iron ore production, which comprises a water guide pipe inserted on one side of a water outlet pipe in a penetrating manner, a flushing pipe is mounted at the bottom end of the water guide pipe and consists of a plurality of small-aperture conical nozzles, and flexible baffles are arranged on two sides of the outside of the flushing pipe. The flexible baffle is used for concentrating water flow and improving the flushing capacity, the flushing assembly is arranged, a water diversion pipe of the flushing assembly introduces a high-pressure water source, clustered high-pressure water flow is sprayed out through a flushing pipe composed of a plurality of small-aperture conical nozzles, a circulation channel can be flushed in time, and manual shutdown cleaning is not needed; the problem that discharging of the non-magnetic mineral end of an existing magnetic separation device is easy to block is solved, the flexible baffles arranged on the two sides of the outer portion of the flushing pipe can effectively concentrate water flow and prevent high-pressure water from being splashed towards the two sides ineffectively, the impact force of unit water flow is remarkably improved, and then the timely flushing efficiency is improved.