SU1620143A1 - Magnetic separator - Google Patents

Abstract

This invention relates to wet magnetic separation. The goal is to increase the efficiency of the separation process by improving the quality of the magnetic product. Inside the rotating non-magnetic drum 1, installed in the bath 4, two magnetic systems (MS) 2 and 3 are placed with a gap relative to each other. Under the bottom of the bath 4 are the receiver 6 and 1 tails and the receiver 8 concentrate. A nozzle 9 is located next to the nozzle 9 between the MS 2 and 3. There is a vibrator (B) 10 under the MS 3. The power supply is supplied by the feeder 5 to the bath 4. In the MS 2 zone, a magnetic product is removed and the tails are drained through receiver 6. In the zone between MC 2 and 3, the magnetic product is diluted with water from nozzle 9 and vibrated by B10. Flocks are destroyed and trapped non-magnetic particles are released. In the zone of MC 3, the cleaning of the magnetic product of the oscillations from B 11 occurs, which contribute to the separation of non-magnetic particles adhering to floccules. The tails are merged into the receiver 7, and the magnetic product is discharged into the receiver 8 1 sludge. F (L

Description

The invention relates to the enrichment of minerals and can be used in the enrichment of magnetite quartzites.

The purpose of the invention is to increase the efficiency of the separation process by improving the quality of the magnetic product.

The drawing schematically shows the proposed separator, section.

The magnetic separator includes a non-magnetic drum 1 with the magnetic systems of the first 2 and second 3 located in it along the rotation of the drum, a bath 4 with a loading device 5, unloading devices 6 and 7 for tailings and concentrate 8, a pipe 9 for supplying water, and a vibrator 10 under the gap between the magnetic systems and a vibrator 11 in the Central part of the magnetic system 3.

Magnetic separator operates as follows.

The pulp from the loading device 5 enters the separator bath 4 and enters the zone of action of the magnetic field created by the magnetic system 2. Non-magnetic material (tails) is unloaded through the unloading device 6. The magnetic material flocculates on the drum 1 and rotates the latter to the gap between the magnetic systems where there is no magnetic field. Here, the magnetic product is unloaded from the drum 1 to the bottom of the bath 4, diluted with water from the nozzles 9 and is exposed to vibrations transmitted to the pulp by the vibrator 10, while the magnetic flocs are destroyed, releasing the captured gangue 5 and poor splices 5, after which the magnetic product flows by gravity under magnetic system 3. Under the influence of a magnetic field, the magnetic product is again attracted to the drum and you ₁₀ is carried by it into the zone of action of the vibrator 11, where the waste rock is washed out of the concentrate by vibrations of water and poor intergrowth tki. Non-magnetic product is unloaded through the discharge device 7.

Claims (1)

15 claims A magnetic separator including a bath, a non-magnetic drum rotatably mounted in it with two magnetic systems placed inside it with a gap relative to each other, loading and unloading devices and water supply pipes, one of which is located between the magnetic systems, characterized in that , in order to increase 25 the efficiency of the separation process by improving the quality of the magnetic product, the separator is equipped with two vibrators mounted under the bottom of the bath, one of which is located between the magnetic systems, and the other under the second in the direction of rotation 30 of the drum magnetic system.