SU1346253A1 - Apparatus for extracting electric conductive non=magnetic particles from the flow of loose material - Google Patents

Abstract

The invention relates to mineral processing and m. used for recycling metal non-magnetic inclusions in waste processing. The purpose of the invention is to increase the efficiency of the separation process and reduce the energy consumption of the device. Under the feeder is located, the working body in the form installed at an angle of 30-60 ° to the direction of flow of the bulk material plate (P) 2. Under the surface G1 2 there are blocks of electromagnets 3, the number of which corresponds to the number of phases of industrial electric current. The source material from the feeder is fed to P 2. When electroconductive non-magnetic particles interact with an alternating magnetic field created by the electromagnet unit 3, they are repelled, the starting materials are brought into motion and then repulsed. In this case, these particles move in the transverse direction until they are released into the receiver 4. The purified material enters the receiver-conveyor. 3 il. S cl with 4; About GCHE SD with

Description

The invention relates to the enrichment of minerals and can be used for the disposal of metallic non-magnetic inclusions in the processing of industrial and household waste.

The purpose of the invention is to increase the efficiency of the separation process and reduce the power consumption of the device.

FIG. 1 shows a device, a general view; in fig. 2 - the same, side view; in fig. 3 shows section A-A in FIG. 2

A device for extracting electrically conductive non-magnetic particles has a feeder 1, an operating member in the form of a plate 2 installed at an angle to the vertical, under the surface of which electromagnet blocks 3 are located, the number of which corresponds to the number of phases of industrial electric current, receiver 4 for recoverable particles and receiver - a conveyor 5 for transporting the purified bulk material.

The device works as follows.

The source material, for example, metallurgical slags, is fed by the feeder 1 to the operating body 2. During the interaction of electrically conductive non-magnetic particles contained in the starting material, with a variable magnetic field created by the electromagnet unit 3, the repulsion occurs, the starting material is brought into motion and the subsequent repulsion occurs. This process is accompanied by the movement of particles in the transverse direction and occurs before the particles are released from the material flow, after which they enter the receiver 4 for the separated particles. Purified source material enters the conveyor 5.

Blocks of electromagnets create an alternating magnetic field. The separation of electrically conductive particles from the flow of bulk material occurs due to the induction in them of an electromotive force by an alternating magnetic field, which is located in the flow path. The magnetic field of a particle is repelled by an alternating magnetic field that induces an electromotive force. The arrangement of the block of magnets (alternating magnetic field) at an angle of 30-60 ° to the direction of flow of the bulk material causes the particle to slip with electromotive force induced in it along the floor until

extracting it from the stream. In the case when the induced electromotive force is sufficient to remove the particle from the flow of bulk material, it is released at the first interaction of the fields.

In order to increase the efficiency of extraction of electrically conductive particles, the flow is given a state close to a weighted one, which is achieved by sliding along the working member set at an angle close to the vertical.

The step of installing electromagnet blocks from the condition of the possibility of separating electrically conductive non-magnetic particles from the middle of the plate is determined by one interaction from the geometric relationships

fomule

t B / 2cosa; where B is the width of the working body;

a is the angle of the electromagnetic system blocks to the direction of flow of the bulk material.

Claims (1)

Invention Formula A device for extracting electrically conductive non-magnetic particles from a stream of bulk material, including a feeder, a working body installed under it in the form of a plate, under the surface of which an electromagnetic system is placed, and receivers of separation products, characterized in that, in order to increase the efficiency of the separation process and reduce the power consumption of the device The electromagnetic system is made in the form of a block of electromagnets, the number of which corresponds to the number of phases of industrial electric current, while the electromagne -magnetic system situated at an angle of 30-60 ° to the direction of flow of the bulk material. Fig.: 5