Electromagnetic separator
 Magnetic separator-analyzer / 2246358Proposed separator includes magnetic system located under moving belt of conveyer around vertical axis; magnetic system consists of permanent magnets at alternating polarity over circle arc. Revolving magnetic system is located above moving belt of conveyer and distance between belt and inclination of axis of rotation may be changed vertically; magnetic fraction is unloaded by means of non-magnetic disk rotating together with magnetic system; this disk is located under magnetic system for change of distance to magnets. |
 Electromagnetic separator / 2257956Separator includes apparatus for feeding raw material, unit for separating raw material in the form of plate with three-phase winding, trough with ferromagnetic layer in bottom mounted on elastic members. When apparatus for feeding raw material realizes working process of metering material, mechanically prepared mixture is fed in trough that performs rocking due to change of magnetic induction. Due to action of pondermotive forces magnetic particles float up to surface of layer moving downwards, they move towards traveling magnetic field and enter pipeline for products. Unit for separating raw material and trough are arranged by inclination angle α relative to horizontal plane. Inclination angle of trough and rigidity of elastic members may be adjusted. |
 Fraction separator / 2261148Proposed device has loading bin connected with chute which has non-metallic and metallic parts. Metal activator is connected to metallic part. Section for removal of magnetic materials mounted above non-metallic part of chute consists of roller, flat belt, magnet and reservoir for receiving fraction. Mounted above metallic part of chute are non-magnetic metal separating section and diamond separating section which consists of diamond activator, roller, flat belt, magnet and fraction receiving reservoir. Flat belts are set in motion by motor connected with common shaft. |
 Device for enriching magnetic raw material / 2278737Device comprises mixing member mounted on the vibration chute, magnetic system made of permanent magnets with alternating polarity of poles mounted in the working zone of the device inside the cylindrical surface of the working drum provided with wedge-shaped recess. |
 Gravitational apparatus to upgrade the finely crushed ores and slimes / 2292953The invention is pertaining to the field of mining industry and may be used for the effective upgrading of the different types of the finely crushed ores and slimes. The gravitational apparatus for upgrading the finely crushed ores and slimes includes: the vibrating system made out of the cone-shaped decks of the quantity of no more than six interacting with the arbor with unbalancing loads and linked with the drive gear of vibrations; the cone-shaped decks rotary drive; the device for removal of the concentrate, which has been made in the form of the pressure tubes mounted in the radial direction above the decks and supplied with the spray jets; the device for feeding made in the form of the fine pulp feeder riser, the flushing water feeder riser, and also the riser of the water delivery into the device of the concentrate withdrawal, which are located inside the vibration system made out of the cone-shaped decks; the ring-shaped chute-receiver of the products of upgrading. The decks are mounted on the support frame. At that the working surface of the cone-shaped decks is coated with the resilient magnet having the increasing in the radial direction magnetic-field strength and with the upper layer made out of the polymeric materials with the surface microroughness made out of silicon carbide. The magnet itself is magnetized by strips along the decks conical surface generatrix and perpendicularly or at an angle to the pulp stream, and above the decks on the traverse there is the servicing stage supplied with the staircase. The technical result of the invention is the increased effectiveness and efficiency of the ores processing. |
 Separation method and device for its implementation / 2343983Invention concerns mineral dressing and can be applied in ferrous metallurgy at concentration plants processing magnetite ores. Separation method involves sludge feed to a sloping chute, upper part of which is positioned in magnetic flocculator field for preliminary magnetisation of magnetic particles in the sludge flow, especially in upper layers; exposure of magnetic particles to traveling field of magnetic inductor at the chute bottom; exposure of separated mineral particles to transverse vibration by placing vibrating flat vertical plates into the flow in flow direction; flow height separation at the chute end into upper and lower products. Method is performed by separation device including nonmagnetic chute with flat bottom, mounted at variable angle ranging from 3 to 25 degrees, magnetic flocculator system positioned in the upper part and assembled of constant magnets without polarity alternation, inductor of traveling magnetic field, oscillator connected to vibration cartridge in the form of vertical plate set directed along sludge flow, and separator positioned at the chute end at flow outlet. Distance from lower plate edges of vibration cartridge connected to oscillator to the chute bottom is adjustable. |
 Gravitational electromagnetic separator / 2380163Invention is related to the field of minerals concentration and may be used to increase extraction of fine dense minerals. Gravitational electromagnetic separator comprises flexible deck with corrugations, tray for reception of power supply and flushing water, driving mechanism of table, receivers for products of separation, electromagnetic system. Deck is arranged in the form of circle, which is separated into two and more sectors, every of which has circular corrugations with progressively rising height from centre to deck periphery. Deck is equipped with high frequency step motor, which provides for its continuous rotation and supply of negative ripples for shift of particles in direction, which is opposite to its rotation. Electromagnetic system in the form of three-phase module inductor of traveling magnetic field is installed over deck surface. |
 Method of wet inertial-dynamic classification of powder materials / 2453375Invention relates to classification of solids with the help of fluids and may be used in concentration of minerals, etc. Proposed method comprises loading fluid with raw stock onto inclined trough top with irregularities arranged on its edges, creating directed flow of pulp by restricting pump flow height at bottom of said inclined trough using overhead cover arranged above said irregularities and directing main pulp flow upward via discharge tube, separating raw stock particles into fractions using reciprocation of working surface with sharp accelerations, discharging obtained fractions at working surface bottom and selecting optimum conditions of classification. Overhead cover arranged above aforesaid irregularities is provided with magnetic fraction accumulator. Outlet is arranged sideways of irregularities provided with magnetically conductive tube to displace magnetic fraction in appropriate accumulator. Magnets are secured above said overhead cover to force mixing of powder material and displacing it toward aforesaid outlet and, therefrom, into aforesaid accumulator. |
 Method of magnetic separation and device to this end / 2478009Invention relates to dressing of minerals, particularly to wet magnetic separation. Proposed method comprises feeding pump, affecting it by nonhomogeneous magnetic field and discharging separation products. Pump is affected by preset-intensity magnetic field to make magnetic particles afloat on pulp surface and stay thereon and to be mechanically removed therefrom and flushed by running water. Proposed device comprises working tool composed of flute 1, magnetic system 2, feeder 4 and separation product receivers 5, 6. Besides, device is equipped with, at least, one dressed product remover 7 and separation plates 8 for uniform pulp flow distribution arranged in flute. Note here that said flute makes a discharge channel 9,10 while aforesaid feeder is provided with pulp feed system 13. |
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Magnetic separator-analyzer / 2246358 Proposed separator includes magnetic system located under moving belt of conveyer around vertical axis; magnetic system consists of permanent magnets at alternating polarity over circle arc. Revolving magnetic system is located above moving belt of conveyer and distance between belt and inclination of axis of rotation may be changed vertically; magnetic fraction is unloaded by means of non-magnetic disk rotating together with magnetic system; this disk is located under magnetic system for change of distance to magnets. |
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Electromagnetic separator / 2257956 Separator includes apparatus for feeding raw material, unit for separating raw material in the form of plate with three-phase winding, trough with ferromagnetic layer in bottom mounted on elastic members. When apparatus for feeding raw material realizes working process of metering material, mechanically prepared mixture is fed in trough that performs rocking due to change of magnetic induction. Due to action of pondermotive forces magnetic particles float up to surface of layer moving downwards, they move towards traveling magnetic field and enter pipeline for products. Unit for separating raw material and trough are arranged by inclination angle α relative to horizontal plane. Inclination angle of trough and rigidity of elastic members may be adjusted. |
 Dust catcher / 2270724Dust catcher has cylindrical-conical casing with branch pipes for supplying dust and gas mixture, discharge of purified gas and discharge of dust, traveling electromagnetic field system, spiral gas guide, locking sleeve, and cellular core. Supports formed from non-ferromagnetic strips are set on casing internal surface, within zone adjacent to traveling magnetic field. Cellular core is provided between supports and spiral guide. |
 Dust catcher / 2271869The invention is pertaining to the field of iron and steel industry, in particular, to dust catchers used for purification of blast furnaces top gases from a dust. The invention ensures an increase of the dust-catching efficiency. The dust-catcher consists of a cylindrical-conical body with the branch-pipes for dust-gas mixture feeding, withdrawal of the gas and the dust discharge; an electromagnetic system of a dust trapping with the magnetic conductors, the cellular core made out of a ferromagnetic material. The dust catcher is additionally equipped with the stop ribs to be used for mounting of the dust catching electromagnetic system with the magnetic conductors and the cellular core, and for fixation of their position in the space. The branch-pipe for feeding of the dust-gas mixtures has a diffuser made out of the non-ferrous metal, the lower part of which is arranged on the level of the lower part of the cellular core. |
 Pneumoinductive separator / 2275247Invention is designed for separating cereal heaps namely for separating grain and seeds. Proposed pneumoinductive separator includes magnetic circuit in form of vertical cylinder with device for decreasing cross section of channel in upper part, feeder with supply branch pipe, and fan. Separator is furnished with pneumatic channel adjoining device for decreasing cross section of channel and made of nonmagnetic material, with diameter equal to 3/4 of diameter of magnetic circuit. The latter is made in form of set of coils different in number of turns providing 1.3-1.5 increase of strength of magnetic field in direction from bottom to top. |
 Method of the magnetic concentration and the device for the method realization / 2288039The invention is pertaining to the field of metal mining industry, in particular, to the magnetic concentration of the finely ground ores containing the strong-magnetic materials and allows to improve the quality of the concentrate. The method provides for the gating of the mash through the working area of the electromagnetic separator with the motionless drum, when the layer of the having flocculated and moving on the working surface particles of the concentrate under action of the traveling magnetic field are exposed to such a mechanical action at which the floccules are destroyed making themselves free from the nonmagnetic fractions, which are flushed away by the water sprays, then the freed thus magnetic particles again are formed in floccules and are withdrawn into the discharge zone. The device includes the body-bath with the conical bottom, the working tool made in the form of the vertical casing-shell with the rotating circular magnet system, which is arranged inside the casing-shell and based on the permanent magnets. On the exterior surface of the casing-shell along its generatrix there are the mounted nets made out of the nonmagnetic material with the mesh size exceeding the maximum size of the grains, but less than the dimension of the floccules along their long axis, and near to the nets the flashing collectors are mounted. For withdrawal of the layer of the floccules of the magnetic fraction the spiral guide is installed. |
 Device for magnetic separation of finely dispersed raw material / 2295392Proposed device may be used for separation admixtures possessing different magnetic properties from inert medium. Proposed device has taper vibrating feeder, separation chamber, revolving magnetic system made in form of hollow vertically oriented dielectric cylinder with permanent magnet units located radially along its axis. Separation chamber is made in form of hollow perforated cylinder located coaxially inside magnetic system; this cylinder is made from dielectric material and is provided with holes, 2-3 mm in diameter which are located in area of action of magnetic system. Fins wound spirally around perforated cylinder of separation chamber in way of holes; these fins are also made from dielectric material and their width is lesser than distance between inner perforated cylinder and magnetic system by 1-2 mm. |
 Pneumatic-induction separator / 2325233Pneumatic-induction separator consists of magnetic circuit in the form of the vertical cylinder with the device for decrease of the channel cross-section. There is a feeder with a pressure connection and the ventilating fan in the top part. The separator magnetic circuit is executed in the form of one coil reeled up on a carcase from the electro-insulating plastic, formed by a set of windings with different number of turns increasing from below upwards, connected in parallel. |
 Magnetic separator / 2365421Invention is related to the field of magnetic separation, namely, to devices for extraction of magnetic-susceptible particles from liquid mediums, and may be used in mining, metallurgical and other industries. Magnetic separator comprises body that hosts concentrically installed non-magnet drum and magnet system on permanent magnets with alternating polarity of poles and possibility of rotation, loading and unloading devices. Drum is installed with the possibility of rotation towards magnetic system with linear speed lower or equal to speed of pulp motion in working zone of separator. The following components are rigidly fixed on internal surface of body along with direction of pulp motion - arc-shaped plate made of electret-type material, for instance, polyurethane, blade deflectors with specified gap from drum surface and induction grid from magnetic soft material, for instance, steel, installed between unloading devices for discharge of slime and concentrate. |
 Dust extractor / 2368424Dust extractor includes cylinder-taper casing with branches for supply of powder-gas mixture, withdrawal of treated gas and discharge of dust, electromagnetic dust collection system, spiral guide of powder-gas mixture movement, cellular core, locking sleeve and rests, installed between barrel and cellular core. Dust extractor is implemented of top cylinder-taper butt with flange and branch for withdrawal of treated gas, dust catching unit with flanges and with branch for supply of powder-gas mixture and bottom cylinder-taper butt with flange and branch for dust withdrawal. Dust catching unit is assembled on separate stand in composition of cylinder with flanges and branches for supply of powder-gas mixture. On it on the outside it is installed electromagnetic system with magnetic conductors, inside there are installed spiral guide for movement of powder-gas mixture, rest of cellular core made of nonferromagnetic material, cellular core in the form of vertical strips made of ferromagnetic material, installed on-the-mitre to movement of powder-gas mixture, and locking sleeve. |
FIELD: separation of finely divided mechanically prepared mixtures containing magnetic fractions.
SUBSTANCE: separator includes apparatus for feeding raw material, unit for separating raw material in the form of plate with three-phase winding, trough with ferromagnetic layer in bottom mounted on elastic members. When apparatus for feeding raw material realizes working process of metering material, mechanically prepared mixture is fed in trough that performs rocking due to change of magnetic induction. Due to action of pondermotive forces magnetic particles float up to surface of layer moving downwards, they move towards traveling magnetic field and enter pipeline for products. Unit for separating raw material and trough are arranged by inclination angle α relative to horizontal plane. Inclination angle of trough and rigidity of elastic members may be adjusted.
EFFECT: enhanced quality of separation process.
2 dwg
Electromagnetic separator.
The device can be used for separating mechanical mixtures into components of their magnetic fraction. The prior art of the invention are known from magnetic separation molding compounds, as well as a magnetic mineral beneficiation. The known device for extracting thin magnetic fraction (Vphoto Electromagnetic separators. M.: Mashinostroenie, 1978; Vierraden and other Processes and machines for mineral processing. M.: Nedra, 1974) contain rotating elements in phase separation and leads to the formation of flocs, resulting in increased operating costs and reduces the quality of the separation process. The reason preventing people from getting in the known solutions of the desired result (reduction of operational costs and improving the quality and percentage yield of the allocated components is the availability of the rotating mechanical system and high level of magnetic potential energy U required to provide magnetic ponderomotive force, extracting and retaining the magnetic particle and the resulting collapse of flocs.
Closest to the claimed device is an electromagnetic separator (patent for invention №2217237)containing feeder of raw materials in the form of a funnel with the changing diameter of razdelitel, consisting of two vertically arranged plates. Plate made of electrical steel sheets. In the slots stacked three-phase winding that generates a traveling magnetic field. When the mechanical separation of the mixture in the specified separator is discharging planning under the action of gravity, by increasing the cross-sectional area of the jet. Magnetic particles are deflected to the edges of teeth, impose restrictions on cross-scheduling non-magnetic particles and with them down the teeth in the collection of the concentrate, reducing the quality.
The reason preventing people from getting in the prototype the desired result (quality improvement division), is a steady increase in the jet cross section at free fall between the vertical plates of the separator.
The essence of the invention.
The invention is aimed at improving the quality of the separation process of fine mechanical mixtures containing magnetic fraction. In the implementation of the workflow (the generation of the magnetic fraction from mechanical mixtures) the original product from the dispenser enters the trench, forming with a horizontal plane an angle α. The mixture, moving down the chute regulated by the geometry of the trough configuration is subjected to the action of ponderomotive forces of the magnetic field and shaking, which VSP is indicates. Traveling magnetic field attracts the magnetic particles along the inclined face of the gutter across the movement of the mixture under the action of gravity along the chute down.
The technical result obtained by the solution of the problem is the mechanical separation of the mixture only on the magnetic and only the non-magnetic fraction, i.e. the improvement of the quality of the separation process. The required technical result, namely improving the quality of the separation process is achieved by the constrained mechanical flow of the mixture under the action of gravity along the bottom of the inclined chute, floating magnetic particles under the action of ponderomotive forces (F=μVHqradH) half-cycle and fluctuations elastically suspended gutters due to the alternating magnetic field, then move them along the inclined face of the gutter in the pipeline thanks to the energy of a traveling magnetic field.
The essential features characterizing the inventive electromagnetic separator.
Restrictive: contains a device for the supply of raw materials, separator materials, a three-phase winding that generates a traveling magnetic field.
Distinctive: the separator material is made in the form of a plate, angled α to a horizontal plane, and a three-phase winding is located on the plate, and the groove is installed on the elastic elements, the bottom of the chute is equipped with Ferr the magnetic layer, thus the slope of the gutters and the stiffness of the elastic elements are regulated.
The drawing shows a side view of the separator and the section a-A.
The inventive electromagnetic separator consists of a device for feeding raw material 1, the separator of the raw material 2-phase winding 3 and the trench 4, the elastic elements 5, 6 and 7 of the magnetic particles in the trough and pipeline works as follows. From the device substrate feed, dosing volume separation, mechanical mixture enters the groove, the angle of α which is adjustable. The bottom of the trench contains a magnetic layer may be made of a ferromagnetic). Under the action of an alternating magnetic field trough on the elastic elements varies. Kinematic parameters of the oscillatory process are controlled by magnetic induction B and the stiffness of the elastic elements, which together with the angle of the gutter allows you to adjust the flow rate of the mixture. Ponderomotive magnetic force FPM=μVHgradH-dependent magnetic permeability environment μ, the volume of the magnetic particles V, magnetic field strength H and its derivative, reduces the effect of gravity G≤FPM. Magnetic particle under the action of vibration of the trough surface layer moving down. Due to the change of magnetic energy U running magnetic field magnetic particle moves is estrecho velocity field V fand into the pipeline.
Electromagnetic separator containing a device for feeding raw materials, separator materials, a three-phase winding that generates a traveling magnetic field, characterized in that the separator material is made in the form of a plate, angled α to a horizontal plane, and gutters, with three-phase winding is located on the plate, and the groove is installed on the elastic elements, the bottom of the chute is equipped with ferromagnetic interlayer, with the slope of the gutters and the stiffness of the elastic elements are regulated.