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Fine granule material friction electrical selection method and device

A triboelectric separation and fine particle technology, applied in chemical instruments and methods, electrostatic separation, electrostatic effect separation, etc., can solve the problems of environmental pollution, high fixed investment and operating costs, and reduce environmental pollution, fixed investment and operating costs. Effects of low, broad availability

Inactive Publication Date: 2011-11-02
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the separation methods of fine-grained minerals mainly include flotation, flotation column, wet magnetic separation, etc. The products obtained by these separation methods are all slurry-like, which must be dehydrated and dried. Treatment of tailings slurry wastewater (liquid) not only has very high fixed investment and operating costs, but also causes environmental pollution

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  • Fine granule material friction electrical selection method and device
  • Fine granule material friction electrical selection method and device
  • Fine granule material friction electrical selection method and device

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the embodiments in the drawings:

[0012] The triboelectric separation method for fine-grained materials of the present invention adopts gas transportation of materials to be separated that are ground to a certain particle size. During the transportation process, the difference in surface work function and electrical properties between different components makes different components When the material collides with the friction rod and the wall, or when the material of different composition collides and rubs with each other, it carries charges of opposite polarity. At the same time, the group of charged powdery materials passes through the high-voltage direct current connection. When the power source forms between the pole plate of the high-voltage electrostatic field and the ground electrode, the particles with opposite polarity charges are subjected to the opposite direction of the electric field for...

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Abstract

The fine grain material friction electrical sorting sending the fine grain material to the friction machine through tubes and air flow, then to the sub sorting chamber with grounding electrode and high voltage electrodes, with opposite electrical charge generated due to friction between the friction bar and the warehouse wall, with the powder material forming into two groups under the opposite field force, outing from different material pipe, featuring in the low cost, and environment friendly merits, with good sorting effect and wide application.

Description

1. Technical Field [0001] The invention relates to a method and device for triboelectric separation of fine-grained materials, and is particularly suitable for the triboelectric separation of fine-grained mineral impurities in coal and coal, and also suitable for triboelectric separation of non-metallic fine-grained minerals. 2. Background technology [0002] In order to make full use of the value of a certain mineral, it must be separated and purified. Most of the minerals in nature are associated together. In order to achieve the separation and purification of a certain mineral, the ore must first be crushed and ground. Fine, so that different components in the ore dissociate from each other to form a monomeric mineral mixture of different components. Generally speaking, the finer the ore is ground, the more fully dissociated from each other, and then effective separation. At present, the separation methods of fine-grained minerals mainly include flotation, flotation column, we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C3/04B03C3/01B03C3/34
CPCY02A50/2351
Inventor 章新喜
Owner CHINA UNIV OF MINING & TECH