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Continuous discrete type rare earth permanent magnet high gradient magnetic separator

A high-gradient magnetic separator and rare earth permanent magnet technology, applied in high-gradient magnetic separators and other directions, can solve the problems of low effective recovery rate of fine-grained magnetic minerals, high operating costs, and large equipment investment, saving equipment investment. and production cost, large processing capacity, small volume

Inactive Publication Date: 2010-01-06
CHANGSHA RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic industrial wet-type strong magnetic separation equipment (or high gradient) also uses electromagnets to provide the background magnetic field for separation, but there are large investment in equipment, high operating costs, and low effective recovery of fine-grained magnetic minerals (-40μm) ( about 30%) etc.

Method used

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  • Continuous discrete type rare earth permanent magnet high gradient magnetic separator
  • Continuous discrete type rare earth permanent magnet high gradient magnetic separator
  • Continuous discrete type rare earth permanent magnet high gradient magnetic separator

Examples

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Embodiment

[0014] Embodiment: As shown in the accompanying drawing, the continuous discrete type rare earth permanent magnet high gradient magnetic separator consists of a frame 1, a sorting combination part (sorting box 2, sorting disc 9, rare earth permanent magnet 8), and an ore feeder 3 , cleaning device 4, magnetic product receiving tank 5, sorting medium stack 6, flushing device 7, driving device 10, frequency conversion speed control electric control box 11 and other main components. The two ends of the inner diameter of the sorting disc 9 are respectively fixed with the large diameter hollow shaft to form an integral rotating part, which is driven by the drive device 10 and controlled by the frequency conversion speed control electric control box 11, and rotates around the hollow shaft. The fan-shaped stainless steel medium heap 6 that can be easily disassembled is housed in the periphery of the sorting disc 9 . Rare earth permanent magnet 8 is composed of S pole 12, N pole 13 an...

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Abstract

The invention relates to a continuous-discrete rare earth permanent magnet high-gradient magnetic separator which can sort the fine materials under the role of high specific magnetic force generated by a strong magnetic field and high-gradient magnetic medium according to differences of magnetic coefficient of particle volume. The separator consists of a rack, a drive device, a sorting disk, a sorting box, a rare earth permanent magnet, a mine feeder, a magnetic product trough connector and a rinser. The separator is provided with a large cavity size heterotype permanent magnet shaped window frame high field strong rare earth permanent magnet, a multi-dimensional magnetic-separation media heap, a discrete ore slurry sorting box system, a multiple continuous sorting disk axial stack combination and a frequency conversion control device. The separator provided by the invention has large capacity as a single device, simple structure, convenient operation and maintenance, energy conservation, stable production process, high-precision of separation, low investment of equipment, low production cost and good sorting technical target, etc. The separator can be effectively used for micro-fine and weak magnetic metal minerals as well as impurity removal and purification of non-metallic mineral.

Description

technical field [0001] The invention relates to a magnetic separator for ore dressing, which is suitable for fine-grained weak magnetic metal ore powder or non-metallic fine-grained powder ore and other materials. Under the action of the high specific magnetic force generated by the combination, it is a high-efficiency rare earth permanent magnet high gradient magnetic separator for separation. Background technique [0002] At present, the demand for imported iron ore in my country's iron and steel industry is nearly 200 million tons, and nearly 15-20% of the domestic proven iron ore resources are complex and refractory ore resources. When mining complex and refractory iron ore, usually magnetic separation It is one of the important beneficiation methods. Foreign companies engaged in industrial wet strong magnetic separation equipment (or high gradient) mainly include Humboldt Wedag AG in Germany, Eriez Magnetics, Inc. in the United States, Sala Magnetics in Sweden, and Czec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C1/025B03C1/031
Inventor 周岳远李小静王明才
Owner CHANGSHA RES INST OF MINING & METALLURGY
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