Dust catcher
 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. |
 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. |
 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. |
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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. |
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Dust catcher / 2270724 Dust 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: iron and steel industry; equipment for purification of blast furnaces top gases from a dust.
SUBSTANCE: the 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.
EFFECT: the invention ensures an increase of the dust-catching efficiency.
3 dwg
The invention relates to ferrous metallurgy, in particular to the cleaning of blast furnace gas blast furnace.
Known dust collector dry cleaning in the form of a vertical tank with conical ends, a pipe for admission of dust-gas mixture, a gas outlet for fine cleaning and release of dust (1). Dust deposition is provided by reducing the gas velocity below the speed of deposition of the dust of the specified size. The efficiency of deposition of dust in the dust collector 50-80%of that is his fault.
The closest in technical essence of the present invention is a cyclone separator, electromagnetic separator, which is essentially a dust collector, comprising a cylindrical casing with a pipe for admission of dust-gas mixture, the gas outlet and the release of dust located outside electromagnetic system running magnetic field with the magnetic circuit, located at the downstream nozzle inside the spiral guide the motion of the medium, installed in the lower housing locking glass, wire mesh core made of ferromagnetic metal, is installed between the internal surface, which is made of corrugated or flat, and the spiral guide. In this case the electromagnetic system can be made in the form of an electromagnetic coil (2).
The disadvantage of this dust collector explosion is aetsa inability to manufacture large industrial dust collectors, what are the domain collector, with a corrugated surface. In the performance of the inner surface is flat and the use of powerful electromagnetic fields will be a change of position in space of the honeycomb core, which reduces the efficiency of dust collection.
The technical task of the invention is to increase the efficiency of dust collection.
This objective is achieved in that famous paleoelevation, including electromagnetic system dust with magnetic wires, covered with a protective screen from abrasion dust, mesh core made of ferromagnetic metal, magnetic-the cover is further provided with hard edges, which are the support structure for mounting an electromagnetic system dust, honeycomb core and fixing their position in space, and a pipe for admission of dust-gas mixture is made with a diffuser made of non-ferromagnetic metal, the lower part of which is located at the bottom of the honeycomb core. And, first, the electromagnetic system of dust collection can be performed as the system is running magnetic field or an electromagnetic coil, and secondly, the electromagnetic system can be located inside the dust collector, and outside. In this case, the case in the AOR is e of the magnetic field is from a non-ferromagnetic metal. A pipe for admission of dust-gas mixture is performed with a diffuser made of non-ferromagnetic metal, the lower part of which is located at the bottom of the honeycomb core to direct the partially purified mixture in the zone of action of the electromagnetic field between the protective screen and honeycomb core.
The proposed device is shown in figure 1 and figure 2 and consists of a cylindrical housing 2 with an inlet for admission of dust-gas mixture 1 with a diffuser 10, the nozzle for release dust 7 and the outlet for clean gas discharge 9, the electromagnetic system dust 8 cores, shield 4, made of non-ferromagnetic material, the magnetic-cover 3, the honeycomb core 6 and the thrust ribs 5.
The proposed device operates as follows. Powder-gas mixture flows in the pipe 1, and exits through the diffuser 10 and is directed into the gap between the honeycomb core 6 and a protective screen 4 electromagnetic system dust 8. The dust settles, first, by reducing the flow velocity at the exit of the diffuser and the movement of his body, as in the device (1) and, secondly, the electromagnetic system dust 8 in the gap between the protective screen 4 and the honeycomb core 6.
The cleaned gas through the honeycomb core is moved toward the pipe outlet cleaned what about the gas 9.
Collected dust is deposited in the lower tapered end and periodically released through pipe 7.
The use of a magnetic system dust and cellular core installed on hard edges, will increase the degree of purification of gas and get dry dust, suitable for immediate use.
Sources of information
1. Reference "Domain production" edited by the research Institute for ferrous metallurgy, Moscow, 1963, vol. 2, page 218.
2. Application RU # 2001118532, CL 03 With 1/24, published 10.06.2003,
A dust collector comprising a cylindrical housing with a pipe for admission of dust-gas mixture, the gas outlet and the release of dust, electromagnetic system dust with magnetic wires, wire mesh core made of ferromagnetic material, characterized in that it further provided with a thrust rib for mounting the electromagnetic system dust with magnetic cores, honeycomb core and fixing their position in space, and a pipe for admission of dust-gas mixture is made with a diffuser made of non-ferromagnetic metal, the lower part of which is located at the bottom of the honeycomb core.