RU1799629C - Method of magnetic concentration of low magnetic ores and separator for realizing same - Google Patents

Abstract

Usage: enrichment of weakly magnetic ores. SUMMARY OF THE INVENTION: The starting material is preliminarily divided into streams between which the washing liquid is supplied at a ratio of the volumes of the washing liquid and the starting material 1: 3-1: 7. For this, the separator is equipped with additional flushing devices installed between the devices for supplying the starting material with the ratio of the areas of the outlet openings 1: 3-1: 7. 2 s.p. f-ly, 3 ill.

Description

With

with

The invention relates to the field of mineral processing and can be used in the magnetic processing of weakly magnetic ores.

The purpose of the invention is to increase the efficiency of enrichment.

Figure 1 shows the proposed separator; FIG. 2 is a view A of FIG. 1.

The magnetic separator includes an electromagnetic system 1 with poles 2, between which a rotor 3 is mounted. Separated into matrices with ferro-fillers 4, a source material supply device 5, connected to a source material supply device 6 installed along the pole, between which there are devices 7 for washing; a device 8 for washing off the concentrate, removing tailings 9, intermediate 10 and concentrate 11.

Magnetic separator operates as follows. The source material in the form of pulp from the device 5 for supplying the source material enters the device 6 for feeding the source material and is fed in several parallel streams to the matrices with ferro-fillers 4 in the magnetic field created by the electromagnetic system 1 and poles 2. Non-magnetic particles pass through a matrix in the tail removal device 9. Magnetic particles are deposited on the surface of the ferro-fillers and, when the rotor 3 is rotated, are moved to the zones of action of the washing devices 7, where under the action of the washing liquid, the by-product is released from the matrices entering the device 10 for removing the by-product. With further rotation of the rotor, after the matrix leaves the magnetic field, the liquid supplied by the device 8 for washing the concentrate is unloaded mag

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filamentary product into the device 11 for the discharge of concentrate.

SUMMARY OF THE INVENTION 1. Method for magnetic enrichment of low-magnetic ores in a high-gradient magnetic separator, which includes feeding the starting material, separating it into concentrate and tailings, supplying the washing liquid to obtain intermediate product and washing the concentrate, heating and sludge in order to increase the efficiency of the enrichment process, the starting material is preliminarily divided into streams between which the washing liquid is supplied at a ratio of the volumes of the washing liquid and the starting material 1: 3-1: 7.

Water

400 l / h

Magnetic separation

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Vur-i

0

5

2. A separator for magnetic enrichment of weakly magnetic ores, including a rotatable electromagnetic system and matrix-separated ferro-fillers for supplying raw materials, connected to a device for supplying raw materials, devices for washing, rinsing concentrate and removal of separation products, distinguish cabbage soup and with that. that the magnetic separator is provided with additional flushing devices installed between the flushing devices for the feed material at a ratio of the areas of the flushing and material outlets of 1: 3-1: 7.

.Raw material

150

500

& -I88 K5 {6L

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