Rotary disc type high-gradient permanent magnetic separator

Abstract

The invention discloses a rotary disc type high-gradient permanent magnetic separator, which comprises a transmission roller fixing frame, a driving roller and a driven roller that are arranged at two ends of the transmission roller fixing frame and a conveyer belt that is driven by the driving roller and the driven roller; the middle of the transmission roller fixing frame is provided with a main body stander; the main body stander consists of a lower base frame body which is fixed and connected with the transmission roller fixing frame and a permanent magnetic steel group supporting standerwhich is arranged above the lower base frame body through a vertical displacement regulating part; a permanent magnetic steep group and a rotary disc which is driven by a power source and can do horizontal rotary motion are sequentially arranged on the permanent magnetic steel group supporting stander from bottom to top, the permanent magnetic steel group is arranged between an upper layer and a lower layer of the conveyer belt, and the rotary disc is arranged above the upper layer of the conveyer belt; an auxiliary magnetic pole of a ring structure is arranged on the surface of the rotary disc; and an air-lock feeder is arranged right above one end of the conveyer belt, and a magnetic material receiving hopper is arranged under the conveyer belt through a receiving hopper supporting frame.

Description

technical field [0001] The invention relates to a kind of mineral processing equipment, in particular to a rotary disc high-gradient permanent magnetic separator which is applied to the separation of kaolin and montmorillonite and the separation of pyrite in coal pulverizer return powder. Background technique [0002] my country is rich in non-metallic ore and coal resources, but the overall situation is characterized by less rich ore and more low-grade ore. At the same time, due to the continuous improvement of users' consumption and quality of high-quality non-metallic minerals and coal mine products, such as: the papermaking and coating industries have requirements for the whiteness of kaolin; Requirements, etc.; the essence is to pay more attention to whether the main impurities contained in it, such as hematite and pyrite, can be effectively sorted. However, the existing widely used mineral separation equipment, such as disc magnetic separator, still has many deficienc...

AI Technical Summary

Problems solved by technology

This kind of magnetic separator requires the use of a large amount of permanent magnet materials, and a scraper or other unloading device is used when unloading the ore. In the actual operation process, the concentrate powder on the disc cannot be completely unloaded, thereby reducing the size of the separator. work efficiency

At the same time, most induction disk magnetic separators are controlled by silicon controlled rectifiers, and horizontal motors are used to drive the induction disks through belt transmission, which determines that the speed and magnetic distance of the induction disks controlled by the current cannot be adjusted.

Therefore, the sorting effect is very unsatisfactory, and at the same time, because the disk is surrounded by coils, a large amount of electric energy is consumed

[0006] Wang Zhengguo and others have developed a new type of permanent magnet disc magnetic separator, mainly through the permanent magnet magnetic Fixed on the inner ring of the disk, the magnetic system alternately arranges a row of N poles and a row of S poles along the radial direction, the magnetic wrap angle is 135°~165°, the magnetic field strength is low, and it is a strong field magnetic separator, which can only be used for medium For the separation of magnetic materials, there are still difficulties in the separation of extremely weak magnetic materials, the separation efficiency is low, and the application range is narrow

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