SU1671357A1 - Cylindrical electromagnetic iron separator - Google Patents

Abstract

This invention relates to electromagnetic iron separators. The goal is to increase the efficiency of the process of extracting magnetic inclusions by intensifying the mixing of the starting material. The device comprises a non-magnetic inclined drum (B) 2 mounted rotatably. The magnetic system is built into the housing B 2 in the form of separate electromagnets (EM) 4 extracts arranged in annular rows. In the lower part of B 2, under it are located between the annular rows of EM 4 stationary EM 5 mixing. The source material is supplied by the feeder 14 to the inside B 2 and due to the rotation B 2 it is mixed. By feeding the EM 5 with pulsed or alternating current, additional mixing of the material and separation of mechanically interlinked magnetic and nonmagnetic inclusions occurs. Magnetic inclusions are attracted to EM 4 and rise to the top. There, the EM 4 is switched off and the magnetic inclusions along tray 13 are poured into the receiver 15. The non-magnetic material is discharged through the bottom end B 2. 2 Il.

Description

The invention relates to ferrous metallurgy, namely, installations for the extraction of metals from slags and industrial wastes, and can be used in the coal, mining and other industries.

The purpose of the invention is to increase the efficiency of the process of extraction of magnetic inclusions due to the intensification of the mixing of the starting material.

The drawing shows the device, General view,

The iron separator contains a rotating drum 2 mounted non-obliquely mounted on the rollers 1, into the case of which there are built-in annular rows 3 located on it.3 separate electromagnets 4 isolated from each other 4 extracting magnetic material 3 separate electromagnets 4 extracting magnetic material are fixed magnetic systems 5 mixing magnetic metal

Inside the drum 2, near its lower end, there are radial supports 6, on which a conical shell 7 is mounted, directed by a large base towards the output end of the drum 2

At the junction of the radial pillars b on the central axis, there is a shaft 8 connected through a coupling 9 with the shaft 10 of the current-distribution box 11. The electromagnets 4 each have two terminals (beginning and end), which through the radial struts 6, which are tubes and axial holes shafts 8 10 clutches 9 are placed in the current distribution box 11

In addition, the separator contains a receiver 12 for a non-magnetic fraction, a tray 13 for unloading a magnetic metal, a feedstock 14 of the source material and a receiver 15 for magnetic inclusions

The device works as follows.

The source material is introduced into the cavity of the inclined drum 2 by the source material feed feeder 14. As a result of rotation on the rollers 1 of the drum 2, the source material moves to the location area of the annular rows 3 of the individual electromagnets 4 and placed stationary between the rows 3 of the electromagnetic mixing systems 5 mixing by pulsing or alternating magnetic fields of the magnetic metal contained in the starting material, after which the magnetic material is attracted hardware to individual electromagnets 4,

the power of the electromagnets 4 can be both constant and pulsed current. Out of the zone of movement of the source material, the magnetic objects are moved by the electromagnets 4 to the upper point of the drum 2, reaching the top point, the electromagnets 4 are turned off, the magnetic objects are unloaded onto the inclined discharge tray 13. items

continue to move in the direction of the lower edge of the drum 2, reach to the radial struts 6, which impede the movement of the non-magnetic material due to the fact that the material can rise

racks b up, fall down, therefore racks b have an annular cross section and a conical shell 7. mounted on them with a large base towards the output end of the drum 2.0, membrane 7 receives the blows of material falling from racks 6 and drops it to the lowest point of the drum 2.

Non-magnetic part, passed the radial rack 6 and slightly moving along the drum

2 is removed through its lower end to receiver 12.

In some cases of separation, it is possible to use parts of individual electromagnets 4 for mixing the magnetic metal in the initial mixture, for which a pulsed magnetic field is induced in the working area of the electromagnet 4, the shaking and mixing magnetic material in the initial mixture, which additionally

has an effect on the extraction efficiency, however the mixing of the magnetic metal by stationary magnetic systems 5 is more efficient

Claims (1)

Invention Formula A cylindrical electromagnetic iron separator, which includes a rotatably mounted nonmagnetic inclined drum with a magnetic system in the form of separate electromagnets embedded in the drum housing, a feeder and receivers of separation products, characterized in that in order to increase the efficiency of the process of removing magnetic inclusions due to intensification the process of mixing the source material, the separator is equipped with additional electromagnets with the electr romagnity arranged annular rows, and the additional electromagnets fixedly mounted under the drum in its lower part, between the annular rows of electromagnets embedded