Multi-stage series drawer type permanent magnet magnetic substance removing device

Abstract

The invention discloses a multistage series drawer type permanent magnet magnetic substance removing device which comprises an iron remover shell, a material homogenizing device, a magnetic device, aquick-opening door plate and a flange. A material inlet is formed in the top of the iron remover shell; the material homogenizing device is welded and fixed with the inner wall of the iron remover shell through ribs; the magnetic device is arranged under the homogenizing device; the magnetic device comprises A-type permanent magnet magnetic bars and B-type permanent magnet magnetic bars which aredistributed at intervals in a staggered manner; the quick-opening door plate is arranged in the side face of the iron remover shell, and the quick-opening door plate and the iron remover shell are sealed through a silica gel plate. The flange is arranged at the bottom of the iron remover shell; the material homogenizing device is added, so that materials can be uniformly distributed on the surfaces of the magnetic rods, and the equipment utilization rate and the demagnetization efficiency are improved; the contact probability of the materials and the magnetic rods is increased by using the multi-stage magnetic rods, and the demagnetization efficiency is improved; a stainless steel plate in the thickness of 4 mm is used as the iron remover shell, and the mechanical strength of the iron remover is improved.

Description

technical field [0001] The invention relates to, in particular, to a multi-stage series-connected drawer-type permanent magnet magnetic substance removal device. Background technique [0002] Due to the occurrence of many electric vehicle fire accidents, the safety of lithium batteries has become one of the important factors restricting its development. Among them, traces of magnetic substances (ferromagnetic substances such as iron, chromium, and nickel) contained in lithium cathode materials and electrolytes lead to blockage of diaphragm apertures during charge and discharge, and even puncture the diaphragm to cause local short circuits, endangering battery safety. The drawer-type permanent magnet iron remover is widely used in the manufacturing industry of lithium carbonate, lithium hydroxide, and lithium battery cathode materials because of its high magnetic field strength and convenient cleaning of magnetic substances. . [0003] At present, drawer-type permanent magn...

AI Technical Summary

Problems solved by technology

[0003] At present, drawer-type permanent magnet iron separators are mostly used on pipelines. The magnetic rods below the inlet of the iron remover contact the most materials, but the probability of contacting materials with the magnetic rods around the inlet is lower; the uneven distribution of materials leads to low utilization of equipment, and magnetic materials may be used. Missed into the next process

2. Most of the drawer-type permanent magnet iron remover has only two series series of magnetic rods, and some magnetic substances may not be absorbed by the magnetic rods.

3. The shell of the iron remover is thin and easy to deform during use

[0004] Therefore, the iron removers available on the market are difficult to use and have low demagnetization efficiency due to defects such as uneven cloth, insufficient layers of magnetic rods, unreasonable design of the distance between magnetic rods, and difficult cleaning of magnetic rods.

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