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Conical-surface rotating friction electric separation device and electric separation method of device

A rotating friction, conical surface technology, applied in chemical instruments and methods, electrostatic effect separation, solid separation, etc., can solve the problems of low sorting efficiency, unstable charging, and small particle charging, and achieve enhanced frictional charge. Electric effect, stable triboelectric effect

Active Publication Date: 2017-08-01
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frictional electrostatic separation is a dry mineral separation method that uses the difference in the frictional charging properties of materials for separation. It has a wide application prospect in the field of mineral separation, and its charging effect has a great impact on the frictional electrostatic separation effect. The current charging equipment has problems such as small particle charge, unstable charging, serious agglomeration, and low sorting efficiency.

Method used

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  • Conical-surface rotating friction electric separation device and electric separation method of device
  • Conical-surface rotating friction electric separation device and electric separation method of device

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Embodiment one: electric selection of waste circuit boards (WPCBs),

[0030] Such as figure 1 It is a device schematic diagram of one of the embodiments, a conical surface rotating friction electric separation device, which is characterized in that it includes a fixed bracket, a feeding port 1, a motor 4, a moving cone 3, a static cone 2, an electric selection area 7 and a discharge mouth; the inner cone is connected to the motor 4, and the motor 4 is fixed on the fixed bracket; the gap between the inner cone and the outer cone forms a friction channel 5, and the material enters the electric separation device through the feeding port 1 at the top of the fixed bracket, Enter the friction channel 5 through the top of the friction channel 5 to squeeze the friction, then enter the electric selection zone 7 through the bottom of the friction channel 5, and then discharge through the discharge port at the bottom of the device;

[0031] The motor is located at the top of the ...

Embodiment 2

[0035] Embodiment two: for coal and associated minerals.

[0036] Such as figure 2 It is a device schematic diagram of one of the embodiments, a conical surface rotating friction electric separation device, which is characterized in that it includes a fixed bracket, a feeding port 1, a motor 4, a moving cone 3, a static cone 2, an electric selection area 7 and a discharge mouth; the inner cone is connected to the motor 4, and the motor 4 is fixed on the fixed bracket; the gap between the inner cone and the outer cone forms a friction channel 5, and the material enters the electric separation device through the feeding port 1 at the top of the fixed bracket, Enter the friction channel 5 through the top of the friction channel 5 to squeeze the friction, then enter the electric selection zone 7 through the bottom of the friction channel 5, and then discharge through the discharge port at the bottom of the device;

[0037] The fixed bracket is hollow, and the section of the top ...

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Abstract

The invention discloses a conical-surface rotating friction electric separation device and an electric separation method of the device. The device is characterized by comprising a fixing support, a feeding port, a motor, a moving cone, a static cone, an electric separation zone and a discharging port; an inner cone is connected with the motor; the motor is fixed on the fixing support; a gap between the inner cone and an outer cone forms a friction channel; and materials enter the electric separation device via the feeding port located in the top of the fixing support, enter the friction channel through the top of the friction channel for extruding friction, enter the electric separation zone through the bottom of the friction channel and then are discharged via the discharging port located in the bottom of the device. With the device and the method, multiple friction manners including mechanical rotation, extrusion and the like are combined, the friction charging effect of material particles is enhanced, the problems that the material particles are charged insufficiently, agglomerated easily and the like during friction charging of the material particles of existing friction charging devices are solved, sufficient and stable friction charging of the particles is realized, and necessary conditions are provided for high-efficiency friction electric separation of the material particles.

Description

technical field [0001] The invention relates to the field of dry electrostatic separation, in particular to an electric separation method of a conical surface rotating friction electric separation device. Background technique [0002] At present, the widely used wet beneficiation process needs to consume a large amount of chemicals and water, and its products need to be dehydrated and dried, which brings about water shortage and water pollution problems. However, mineral resources in the water-short northwestern regions rich in mineral resources in my country are difficult to develop. With the continuous development of dry beneficiation technology, the superiority of its technology is also revealed. It has the characteristics of less pollution, less water consumption, simple process and low cost. Frictional electrostatic separation is a dry mineral separation method that uses the difference in the frictional charging properties of materials for separation. It has a wide appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C7/12
CPCB03C7/12
Inventor 王海锋杨金山赵小路张光文杨兴何亚群
Owner CHINA UNIV OF MINING & TECH