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Drum-shaped dry-type superconducting open gradient magnetic separator

A magnetic separation and dry technology, applied in the field of superconducting magnetic separation, can solve the problems of high refrigeration cost, small magnetic field gradient, affecting separation efficiency, etc., and achieve the effect of reducing refrigeration cost, improving magnetic field gradient and improving separation efficiency.

Inactive Publication Date: 2012-05-23
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The material used in the above device is a low-temperature superconducting wire, and the magnet needs to work in the liquid helium temperature zone (4.2K), and the refrigeration cost is high
As mentioned earlier, open gradient magnetic separation also has the problem of relatively small magnetic field gradient, which also affects the separation efficiency

Method used

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  • Drum-shaped dry-type superconducting open gradient magnetic separator
  • Drum-shaped dry-type superconducting open gradient magnetic separator
  • Drum-shaped dry-type superconducting open gradient magnetic separator

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments.

[0020] As shown in the figure, the basic structure of the present invention is basically the same as that of a conventional permanent magnet, electromagnetic or superconducting drum dry open gradient magnetic separator, consisting of a central constant magnetic source 1 and a drum 2 that can rotate around the central constant magnetic source 1. The ore powder funnel 3 placed above the rotating drum and the non-magnetic material collecting box 4 and the magnetic material collecting box 5 placed below the rotating drum constitute. Mineral powder falls from the mineral powder funnel 3, and then moves along the outer side of the central constant magnetic source with the magnetic zone 6 along with the drum 2 with steel wool attached, and the non-magnetic or weak magnetic substances (white particles in the figure) directly fall into the non-magnetic substance collection box 4...

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Abstract

The invention discloses a drum-shaped dry-type superconducting open gradient magnetic separator. The magnetic separator is mainly composed of a central permanent magnet source, a drum which can rotate around the central permanent magnet source, a mineral powder funnel arranged above the drum and a nonmagnetic substance collection box and magnetic substance collection box which are arranged under the drum, wherein the central permanent magnet source is composed of a liquid nitrogen temperature dewar bottle and a magnetic region formed by high temperature superconductor attachment blocks which are adhered on the inner surface of the dewar bottle. The drum-shaped dry-type superconducting open gradient magnetic separator can generate a more than 2T of sorting magnetic field and high magnetic field gradient under the liquid nitrogen environment (77K), has the advantages of higher magnet working temperature than the low temperature superconducting magnet, large sorting region magnetic fieldgradient and the like, and can be widely used in mineral dressing and other fields.

Description

Technical field [0001] The invention relates to the technical field of superconducting magnetic separation, in particular to a novel high-efficiency drum-shaped dry superconducting open-gradient magnetic separator based on superconducting blocks. Background technique [0002] Magnetic separation technology is a technology that uses a magnetic field to separate substances with different magnetic properties. It is widely used in mineral processing and water treatment. The principle of magnetic separation is to apply a magnetic field with different magnetic field strengths at different positions to the magnetized particles, so that the magnetic field forces at the two poles of the particles are not equal, and the particles move under the action of a net force, which achieves the separation of magnetic substances. The net force suffered by magnetized particles in the magnetic field is related to the magnetization intensity generated by the particles (non-permanent magnetic parti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C1/10
Inventor 段晚晴黄庆王豫姜向东董亮严仲明董翔
Owner SOUTHWEST JIAOTONG UNIV
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