SU1407549A1 - Magnetic separator - Google Patents

Abstract

The invention relates to the enrichment of minerals, primarily weakly magnetic ores. The purpose of the invention is to increase the efficiency of enrichment. The separator includes a loading device 1, a drum (b) 2 placed in a bath (b) 6 with a tail opening 8, a magnetic system 5 installed in the latter, and a concentrate tray (L) 7. On the outside, B 2 is lined with rubber 3. Attached to it are installed along generatrix B at an angle of 8-12° rubber plates 4, the thickness of which is 4-8 times greater than the thickness of rubber 3, are attached to its circumference. The initial pulp from device 1 enters B 6 under B 2. Magnetic grains, under the influence of the magnetic field, are attracted to B 2, move to the edge of the system 5 and are unloaded onto L 7. In this case, plates 4 stir up the pulp in the working zone and facilitate the unloading of magnetic grains onto L 7. Non-magnetic grains are unloaded from B 6 through opening 8. 3 or s S (L s

Description

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The invention relates to the enrichment of minerals and can be used to separate minerals by magnetic properties, primarily weakly magnetic ores.

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

Fig. 1 shows the proposed magnetic separator, general view; Fig. 2 - magnetic separator drum, side view; Fig. 3 - section A-A in Fig. 2.

The magnetic separator consists of a loading device 1, a drum 2 lined with rubber 3, where plates 4 are attached, a magnetic system 5, a bath 6, a concentrate tray 7 and a tail opening 8,

The plates 4 are attached to the lining layer (rubber) 3 of the drum at an angle of 8-12°. Fig. 3 shows four plates, the thickness of the plate S is 4-8 times greater than the thickness of the rubber lining g, and the width b of the plate is 1/27-1/30 of the drum circumference. In this case, the ratio of the area of the cylindrical surface of the drum to the total area of the plate is 3.4-7.5.

The separator works as follows.

The oxidized ore in the form of pulp is fed into the loading device 1, from where it is directed in a uniform layer

is flown into the separator bath 6 under the rotating drum 2 lined with rubber. Magnetic grains under the influence of the magnetic field are attracted to the drum and move to the edge of the magnetic system 5, where they are detached from the drum and flow by gravity to the concentrate tray 7. Plates 4 attached to the drum create pulp agitation in the working area of the separator, which intensifies the separation process. They also facilitate the unloading of magnetic grains onto the concentrate tray 7. Non-magnetic grains are unloaded from the separator bath 6 into the tail opening 8.

Claims (1)

Formula of invention  A magnetic separator comprising a loading device, a drum lined on the outside with rubber, with a magnetic system installed inside it, which is placed in a bath having an opening for the discharge of tailings, and a concentrate tray, distinguished by the fact that, in order to increase the efficiency of enrichment, the separator is equipped with rubber plates, which are placed on the drum along its generatrix, at an angle of 8-12° to its circumference, and the thickness of which is 4-8 times greater than the thickness of the rubber lining. Fig. 2 l 5i Fig.3