Air-cooled magnetic separation drum and air-cooled magnetic separation device

Abstract

The invention discloses an air-cooled magnetic separation roller and an air-cooled magnetic separation device. A clearance between the inner wall of a roller body of the air-cooled magnetic separation roller and a magnetic system is enclosed by a side sealing piece and an end sealing piece to form a closed space; a main shaft axial air inlet hole and a main shaft radial air inlet hole, which are communicated with each other, are formed in the first end of a main shaft; the main shaft radial air inlet hole is connected with the first end of an air inlet ventilation pipe; a main shaft axial air outlet hole and a main shaft radial air outlet hole, which are communicated with each other, are formed in the second end of the main shaft; the main shaft radial air outlet hole is connected with the first end of an air outlet ventilation pipe; the second ends of the air inlet ventilation pipe and the air outlet ventilation pipe are communicated with the closed space respectively. The air-cooled magnetic separation device comprises the air-cooled magnetic separation roller, an air supply device and an air draft device. According to the air-cooled magnetic separation roller and the air-cooled magnetic separation device, the temperature of the magnetic system and the temperature of the roller body are effectively reduced, the temperature rise of the magnetic system is low, the phenomenon of demagnetization of a magnetic block is avoided, the stability of magnetic force in a magnetic material is protected, and the normal operation of magnetic selection equipment is ensured.

Description

technical field [0001] The invention relates to the technical field of magnetic separation equipment, in particular to an air-cooled magnetic separation drum and an air-cooled magnetic separation device utilizing the air-cooled magnetic separation drum. Background technique [0002] The magnetic separation drum is the main part of the magnetic separation equipment. The magnetic separation drum is mainly composed of a fixed main shaft, a cylinder body rotatable on the main shaft, and a magnetic system located in the cylinder and fixed on the main shaft. Among them, the magnetic system consists of several Composition of magnetic blocks. [0003] In the process of magnetic separation of high-temperature raw materials (about 150 ° C ~ 200 ° C) such as steel slag by using a magnetic separation drum or dry magnetic separation of high-temperature raw materials by a magnetic separator, the magnetic block demagnetization phenomenon is serious under high temperature conditions, even ...

AI Technical Summary

Problems solved by technology

[0003] In the process of magnetic separation of high-temperature raw materials (about 150 ° C ~ 200 ° C) such as steel slag by using a magnetic separation drum or dry magnetic separation of high-temperature raw materials by a magnetic separator, the demagnetization of the magnetic block is serious under high temperature conditions, and even It will completely lose its magnetism in a short time, affecting the normal use of the equipment

Existing magnetic separation drums that can remove iron impurities from high-temperature raw materials usually only work on high-temperature resistant magnetic blocks, but high-temperature resistant magnetic blocks are not only expensive, but also have limited temperature tolerance, which cannot meet the production needs of some enterprises.

Images