SU1491584A1 - Electromagnetic suspended iron separator - Google Patents

Abstract

The invention relates to the separation of materials according to magnetic properties and can be used in the mining industry, electric power industry, mining and non-ferrous metallurgy. The goal is to increase the efficiency of the process of removing magnetic inclusions. Electromagnetic suspension separator includes a core 1, magnetizing windings and pole pieces (PN) 4. The outer surfaces 5 PN 4, facing the core 1, are flat and attached to the poles of 3 core 1. The remaining outer surfaces 6 PN 4 are made in the form of a bellows. Made PN 4 hollow and the cavity is filled with granular ferromagnetic material. When the conveyor belt 8 delivers bulk material into the working area between the MO 4, the ferromagnetic bodies 10 are attracted to the surfaces 6 MO 4.

Description

The invention relates to the field of separation of materials according to their magnetic properties and can be used to separate ferromagnetic bodies from superficial materials in the mining industry, electric power industry, ferrous and nonferrous metallurgy.

The aim of the invention is to increase the efficiency of the process of removing magnetic inclusions.

The drawing shows the proposed device.

The device consists of a core 1 on which magnetizing windings 2 are placed and pole lugs 4 are attached to its poles 3. The surfaces of 5 pole lugs 4 facing the core 1 are made flat. The rest of the surface of 6 pole tips A is made in the form of a syphone. Inside the pole pieces 4 placed bulk ferromagnetic material 7. Core 1 is located above the conveyor belt 8, the carrier bulk material 9 with ferromagnetic bodies 10.

The device works as follows.

In the process of adjusting the iron separators, the surface profile of 6 pole pieces 4 is made as close as possible to the bulk material profile 9. For example, a template is installed between the surfaces 6, the profile of which corresponds to the flow material 9, and the right amount of ferromagnetic bulk material goes inside the pole tips 4 7. The current is then applied to the magnetizing windings 2 and the shape of the pole pieces 4 remains unchanged throughout the operation of the iron separator. To change the shape of the pole pieces 4, you need to demagnetize the core 1.

Bulk material 9 is supplied by a conveyor belt 8 into the working area between the pole pieces 4, where the ferromagnetic bodies 10 are attracted to the surfaces 6. The unloading of the iron separator is carried out away from the conveyor belt 8

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and disconnecting the magnetizing windings 2 without demagnetizing the core 1.

5 Matching the profile of the pole pieces 4 with the profile of the bulk material 9 increases the extraction force due to the reduction of the gap between the surfaces 6, which leads to

10 to increase the efficiency of the separation process.

Filling the pole pieces 4 with the bristle material 9, in addition to being able to change the profile of the surface 15, allows for an increase in the extraction force in the depth of the bulk material 9, i.e. in the most difficult to remove place. Magnetic field lines, crossing pole

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tips 4 are passed on loose ferromagnetic material 7. Since in the upper part of pole pieces 4 the intensity of the magnetic field is greater than in the lower, the cross-ferromagnetic material 7 is saturated and its magnetic resistance increases compared to the resistance in the lower part. Therefore, there is a redistribution of the magnetic flux and its proportion in the lower part of the polarized caps 4, and therefore increases in the depth of the bulk material 9, which leads to an increase in the extraction force and to an improvement in the operating characteristics of the device.

Claims (1)

Invention Formula Electromagnetic pendant iron separator, comprising a core, pole pieces, one of whose external surfaces facing the core are flat and through which they are attached to it, characterized in that, in order to increase the efficiency of the process of removing magnetic inclusions, pole tips are made hollow and the remaining external surfaces are in the form of a bellows, with this cavity being filled with ferromagnetic material. tips 4 are passed on loose ferromagnetic material 7. Since in the upper part of pole pieces 4 the intensity of the magnetic field is greater than in the lower, the cross-ferromagnetic material 7 is saturated and its magnetic resistance increases compared to the resistance in the lower part. Therefore, there is a redistribution of the magnetic flux and its proportion in the lower part of the polarized caps 4, and therefore increases in the depth of the bulk material 9, which leads to an increase in the extraction force and to an improvement in the operating characteristics of the device. Invention Formula Electromagnetic pendant iron separator, comprising a core, pole pieces, one of whose external surfaces facing the core are flat and through which they are attached to it, characterized in that, in order to increase the efficiency of the process of removing magnetic inclusions, pole tips are made hollow and the remaining external surfaces are in the form of a bellows, with this cavity being filled with ferromagnetic material.