SU38594A1 - Magnetic separator - Google Patents

Description

Spiral magnetic separators or magnetic log-washers, despite the simplicity of their design, low power consumption and high quality indicators, are used relatively rarely because they require very fine pre-grinding of the ore, to be successful, 3 mm, much smaller than is normally required for separating ore magnetic grains from waste rock grains, as in the npoTHBijoM case, the concentrate is contaminated with waste rock grains and its quality is thus reduced.

In order to eliminate such drawbacks, a magnetic separator is proposed, which is intended to produce pure concentrates with larger grinding of ore; This feature is of great economic importance, since fine grinding of ore is very expensive.

According to the invention, in a magnetic separator consisting of an inclined zholob with a rotor blade rotated in it on the longitudinal shaft and electromagnets placed under the zholob, the shaft with the helical blade receives

(eight)

reciprocating movement, due to which agitation is intensified, ores.

In FIG. 1 shows a side view of the proposed separator, and FIG. 2 is a longitudinal section of it.

In the inclined zholobe 1 there is a longitudinal shaft 2, on which a screw 3 is fixed on a non-magnetic material; under the zholob electromagnets are located 4.

When the shaft 2 rotates, the blade 3 moves the concentrate along the bottom of the chute 1 for unloading. The ore is fed through pipe 5. The grains of the waste rock go into the discharge pipe 6.

In the front part of the separator, the cam washer 7 is fixedly mounted. On the shaft 2 protruding from this washer 7, the finger 8 is rigidly fixed, which, when the shaft 2 rotates, contacts the curved surface of the washer 7, resulting in a gradual movement of the shaft in one direction and then faster lowering it in the opposite direction. With such additional longitudinal reciprocating mixing, the shaft 2 together with the blade 3 is produced without any damage to the translational