SU1641397A1 - Magnetic separator - Google Patents

Abstract

The invention can be used for the purification of liquids and gases from ferromagnetic impurities and makes it possible to improve the process of regeneration of the packing placed in the cartridge (K). The latter is mechanically connected by means of a spring with a ferromagnetic satellite element (FE), which is made of magnetic material and is magnetized during the separation period by an additional magnetizing system placed outside the body. During regeneration, the additional magnetizing system is switched off and the main magnetizing system e is temporarily switched off. The SC and K are moved down under the force of gravity, while the SC, interacting with the main magnetizing system, rotates and oscillates, which is transmitted K. his se. In order to carry out the separation process, K and SC are pushed up by an electromagnet 7 Cp f-crystals, 3 sludge. 1Л С

Description

The invention relates to magnetic deposition of ferromagnetic impurities from liquids and gases and can be used in the chemical, metallurgical, mining, thermal and nuclear power industries.

The purpose of the invention is to improve the regeneration due to the intensive periodic destruction of the nozzle layer and the elimination of the magnetic effect on the nozzle during the regeneration period, and improving the reliability of the separator

FIG. 1 shows the scheme of the proposed separator during the separation period with a rigid connection between the satellite element and the cassette; figure 2 - the same in the period of regeneration

in the case of non-rigid communication of the satellite element and the cassette and layer-by-layer arrangement of the nozzle in the cassette; in FIG. 3 - the same, in the period of separation from the additional magnetizing system with transverse magnetization placed in the zone where the satellite element is made of magnetic hard material.

The device contains case 1 (the number of which with a large flow rate of the separated medium may be several), ferromagnetic nozzle 2, made, for example, in the form of fires or other granules (for thin magnetic separation, it is advisable to use non-corrosive granules, in particular, diffusion saturation of the surface with nitrogen) . Nao

four

WITH

VU VI

The cage 2 is placed in the cassette 3 and can be placed layer by layer on the holding segments 4 placed in the cavity of the cassette 3 (Figures 2 and 3).

The cassette is additionally equipped with a satellite element 5, connected to it by a mechanical connection b, which may be non-rigid, a nalimer in the form of a spring 7 (Figures 2 and 3), and the mass ratio of the non-rigid connection of the satellite element to the relation

JUJi-Jim

m with D

where tk - the mass of the cartridge with the nozzle; TC is the mass of the satellite element;

K is the coefficient of elasticity of the connection of the cassette with the satellite element;

D is the stiffness of the magnetic coupling of the satellite element and the main magnetizing system.

The separator also contains the main magnetizing system 8 and the electromagnet 9. For magnetizing the satellite element 5, made of magnetic material, in the zone of its presence during the separation period an additional magnetizing system 10 with transverse magnetization is placed. For the supply and removal of the medium to be separated, branch pipes 11 and 12 are provided.

The distance between the cassette and the satellite element is determined by at least the condition that the main magnetizing system re-triggers during the movement of the cassette-spool system to an element from the cassette position in the main magnetizing system to the position of the satellite element in this zone.

The separator works as follows

At the same time, the power of the electromagnet 9 is turned on and the power of the main magnetizing system 8 is turned off, while the satellite element 5 moves up and there is no cassette 3 with the nozzle 2. After reaching the cassette 3 of the main magnetizing system 8, its power is turned on and the nozzle 2 is magnetized, inside it creates high gradient magnetic field. The nozzles 11 and 12 open and the cleaned medium enters the housing 1, passes through the satellite element 5, where it is treated with a magnetic field, and cleaned in the nozzle 2. Ferromagnetic fractions are deposited on the surface of the nozzle granules. The purified medium is removed from the housing. After the filter cycle time.

That is, the time of complete saturation of the nozzle with ferromagnetic impurities is turned off by the main magnetizing system 8 and the electromagnet 9. The cassette 3 and the satellite

element 5 is moved downwards by the force of gravity until the satellite element reaches the main magnetizing system 8. At this moment, the main magnetizing system turns on and in

As a result of the interaction of the magnetic field and the satellite element 5, it, together with the cassette 3, begins to oscillate along the axis of the housing, while the nozzle 2 is intensively mixed, which is simultaneously washed by the flow, for example, of the water / air mixture.

When a satellite element is made of a magnetic material, it is in the period of separation, i.e. when the cassette with the nozzle is located in the area of the main magnetizing system, it is magnetized by a transverse magnetic field created by the additional magnetizing system 10. After the electromagnet 9 is turned off and the main magnetizing system 8 is disconnected, the cassette system - the satellite element moves down and simultaneously rotates about the axis due to magnetic interaction of the poles of the magnetized satellite element and the main magnetizing system. In order to improve the regeneration, repeated repetition and release of the satellite element and the nozzle cassette can be repeated.

Claims (8)

1. Magnetic separator, including body, cassette with ferromagnetic attachment, installed with the possibility of reciprocating movement, 0 the main magnetizing system and the traction electromagnet, characterized in that, in order to improve regeneration due to intensive periodic destruction of the nozzle layer and eliminate the magnetic effect on the nozzle during the regeneration period and increase the reliability of operation, it is equipped with a satellite element made of magnetic material, installed remotely above the cassette and 0 connected to it by means of a mechanical link, and a traction electromagnet is located in the upper part of the body at the level of the satellite element. 2. A separator according to claim 1, characterized in that the cassette and the satellite element are rigidly connected. 3. Separator according to claim 1, characterized in that the cassette is connected to the satellite element of the flexible assembly. 4. The separator according to claims 1 and 3, that is, that the ratio of the mass of the cassette with the attachment to the mass of the satellite element is determined by the formula mk K m with D where t "is the mass of the cartridge with the nozzle; ts is the mass of the satellite element; K is the coefficient of elasticity of the coupling of a caste with a satellite element; D - magnetic hardness satellite element and main magnetizing system. 5. Separator on PP, 1-4, characterized in that the satellite element made of magnetically hard material. 6. A separator according to claims 1 and 5. characterized in that it is provided with an additional magnetizing system of periodic action and transverse magnetization installed in the zone of the traction magnet. 7. Separator on the PP. 1.5 and 6, about tl and h and yu and with the fact that like poles the primary and secondary magnetizing systems are offset relative to the generator body. 8. Separator according to claims 1-4, characterized in that the cassette is equipped with grids layered placement of the nozzle.