Magnetic separator

A magnetic separator and magnetic technology, applied in the direction of magnetic separation, chemical instruments and methods, classification, etc., can solve the problems of inability to separate shapes and residual rectangular particles, and achieve the effect of promoting shape separation and improving precision

Active Publication Date: 2016-09-07
NAT INST OF ADVANCED IND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the conventional inclined conveyor-type shape separation device, when feeding onto the conveyor belt, if the cylindrical side portion is not supplied in an oblique direction, it will remain on the conveyor belt like rectangular particles. superior
In addition, if vibration etc. are applied, the small rectangular element will roll down on an incline, so it is not possible to perform shape separation with high precision.

Method used

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Embodiment

[0032] The present invention provides a weak magnetic force magnetic separator, which has: a belt conveyor, which transports the particles to be sorted; The sorted particles conveyed on the low-magnetic force magnetic conveyor belt are magnetically recovered for all strong magnetic substances, and no weak magnetic substances are recovered at all. It is characterized in that the suspension type magnet unit is set in the following way: the length direction The length of the magnet unit is greater than the width of the conveyor belt, so that the length direction of the magnet unit is consistent with the width direction of the conveyor belt, and the two ends of the magnet unit are more protruding than the width of the conveyor belt, and the distance from the surface of the conveyor belt becomes a fixed distance throughout the length direction. , in the range of weak magnetic force exceeding 0 and less than 700 gauss, the deviation of the magnetic flux density in the width direction...

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Abstract

A weak magnetic force magnetic separator, including: a belt conveyor conveying separation target particles; and a suspended magnet unit provided at a distance above the belt conveyor and configured to magnetically attract, with a uniform, weak magnetic force, the separation target particles conveyed over a belt. With a length of the magnet unit in its longer direction being greater than a belt width of the belt, and with the magnet unit placed such that its longer direction is aligned with the belt width direction and its both ends overhang the belt width, and such that a distance from the surface of the belt is constant across its longer direction, magnetic flux density variations in the belt width direction over the belt surface facing the magnet unit are 10% or less within a weak magnetic force range of from over 0 to 700 gauss.

Description

technical field [0001] The present invention relates to a magnetic separator that uses magnetism to separate particles, which is suitable for the field of recycling industry, food and materials for powder separation, and especially relates to the particles transported by a belt conveyor. The suspension magnet unit suspended on the belt conveyor is magnetized by weak magnetic force, and only the strong magnetic particles are magnetized and recovered by weak magnetic force magnetic separator. Background technique [0002] Magnetic separators are one of the most popular particle separation devices that are generally and widely utilized. A method of magnetically attracting and capturing iron filings, etc., by magnets suspended from above, magnets accommodated in conveyor pulleys, or magnets arranged on the left and right sides of the particle flow path, to distinguish them from non-magnetic particles . As the magnets, other than permanent magnets, electromagnets, superconducti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C1/22B03C1/00B03C1/02B07B13/11
CPCB03C1/22B03C2201/20B03C1/16B03C1/18C22B34/24
Inventor 大木达也梅宫阳子
Owner NAT INST OF ADVANCED IND SCI & TECH
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