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Charging sorting device and method

A charging sequence and friction charging technology, which is applied in chemical instruments and methods, electrostatic effect separation, solid separation, etc., can solve the problem of complete selection of materials and other problems

Inactive Publication Date: 2007-04-25
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a complete selection of materials at all levels is difficult

Method used

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  • Charging sorting device and method
  • Charging sorting device and method
  • Charging sorting device and method

Examples

Experimental program
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Effect test

Embodiment Construction

[0018]

[0019] This embodiment is a charged sorting device for sorting out the first and second materials from a mixture containing the first and second materials, and is a charged sorting device for performing secondary sorting on the mixture.

[0020] FIG. 1 is a diagram showing a charged sorting device according to the present embodiment. As shown in Figure 1, this electrified selection device has: the first stage material supply device 1a; The first stage friction electrification device 2a; The first stage electric field input device 3a; 42a; the first stage power supply 51a, 52a; the first stage recovery box 8a; the second stage material supply device 1b; the second stage friction electrification device 2b; the second stage electric field input device 3b; Set the electrodes 41b, 42b; the second stage power supply 51b, 52b; and the second stage recovery box 8b.

[0021] A mixture containing the first material (material piece A) and the second material (material piece B...

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Abstract

A mixture of first material chips and second material chips is charged by a first frictional charging device made of a first material property, and then first and second sorted matters are sorted from the mixture by an electric field across first and second opposed electrodes. After that, the second sorted matter of higher content of the second material chips than the content of the first material chips is charged by a second frictional charging device made of a second material property, and then third and fourth sorted matters are sorted from the second sorted matter by an electric field across third and fourth opposed electrodes. By subjecting the mixture including the first and second material chips to two-stage sorting, and selecting the materials of portions having charging capability of first and second charging devices to conform to the electrostatic properties of the materials of the mixture, the charging of the first and second material chips in the first and second charging devices is accelerated, making it easy to obtain sorted matters where the first and second materials have been purified to a high degree. A charging and sorting device is therefore achieved which is capable of sorting the materials of the mixture to a higher degree.

Description

technical field [0001] The present invention relates to an electrification sorting device for electrifying a chargeable mixture such as plastic by using friction or the like, and selecting constituent materials of the mixture for each type in an electrostatic field by utilizing the property that the charging characteristics of each material constituting the mixture are different from each other. Background technique [0002] It is generally known to triboelectrically charge a mixture of different kinds of materials in a triboelectrification sequence (a sequence in which a substance that is easily charged positively is arranged in a high position and a substance that is easily charged negatively is arranged in a low position when different kinds of materials are rubbed against each other). A charged selection device that selects each material that is positively charged and negatively charged in an electrostatic field. [0003] For example, the frictional charging sequence of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C7/02
CPCB03C7/10B29B2017/0203B29B17/02B29B2017/0265B03C7/006Y02W30/52Y02W30/62
Inventor 远藤康博椋田宗明松尾雄一
Owner MITSUBISHI ELECTRIC CORP
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