Combined type vertical ring suspension disturbance high-gradient magnetic separator and beneficiation method using combined type vertical ring suspension disturbance high-gradient magnetic separator

Abstract

The invention discloses a combined type vertical ring suspension disturbance high-gradient magnetic separator which comprises a rack, a rotating ring, a magnetic system, a concentrate flushing mechanism and a concentrate hopper. The magnetic system comprises an upper magnet yoke, a lower magnet yoke and an exciting coil, an ore pulp tank is fixedly arranged on the rack, the lower magnet yoke is arranged on an outer wall of a bottom of the ore pulp tank, the upper magnet yoke is arranged in the rotating ring, a lower half portion of the rotating ring is located in the ore pulp tank, and an orepulp disturbance device is arranged in the ore pulp tank. The invention further provides a beneficiation method using the combined type vertical ring suspension disturbance high-gradient magnetic separator. The combined vertical ring suspension disturbance high-gradient magnetic separator can obtain a better separation effect than vertical ring pulsation high-gradient magnetic separation equipmentin the separation of fine-grained minerals (such as red mud).

Description

technical field [0001] The invention belongs to the field of magnetic separation, and in particular relates to a magnetic separator and a mineral separation method using the same. Background technique [0002] High-gradient magnetic separation technology is an effective means of separating fine-grained and weakly magnetic minerals. The vertical ring pulsating high-gradient magnetic separation equipment has been widely used in the separation of weak magnetic minerals. The basic work flow of this equipment is that the raw ore slurry is fed into the magnetic medium on the rotary ring through the gap of the upper yoke, and the magnetic particles are adsorbed. On the surface of the magnetic medium, it is taken away from the separation area of ​​the strong magnetic field by the rotating swivel ring, and is reversely washed by the flushing water on the top of the swivel ring, and washed into the concentrate bucket; Under the action of pulsating fluid force, it passes through the m...

AI Technical Summary

Problems solved by technology

The vertical ring pulsating high-gradient magnetic separation equipment adopts a vertical configuration, which directly impacts the magnetic mineral accumulation area on the medium for the ore flow, which is likely to cause gangue minerals to be mixed in the magnetic mineral accumulation area and affect the concentrate grade.

[0004] In order to solve the problem of magnetic medium clogging, the vertical ring pulsating high-gradient magnetic separation equipment introduces a certain intensity of pulsating flow. The introduction of pulsating flow solves the problem of magnetic medium clogging, and to a certain extent helps to improve the concentrate grade, but the fluid The pulsation increases the fluid viscous force on the fine-grained weak magnetic minerals, and the loss of fine-grained minerals is serious

[0005] In addition, the use of narrow-grain segmented magnetic separation is beneficial to improve the separation efficiency of weakly magnetic minerals. The existing vertical ring pulsating high-gradient magnetic separation equipment usually uses one operation to complete the whole-grain separation, which is not conducive to the elimination of coarse-grained and fine-grained minerals. Unfavorable effects on each other during the separation of particle size minerals

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