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High-tension electrostatic classifier and separator, and associated method

A high-voltage electrostatic and separator technology, applied in electrostatic effect separation, chemical instruments and methods, solid separation, etc., can solve problems such as residue

Inactive Publication Date: 2009-02-04
OUTOTEC OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A significant problem with high voltage electrostatic roll separators is that conductive fine particulate material remains on the outer drum surface of the roll and is misplaced with non-conductive particulate material
However, size sorting is such a painstaking job that one would like to avoid size sorting unless necessary

Method used

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  • High-tension electrostatic classifier and separator, and associated method
  • High-tension electrostatic classifier and separator, and associated method
  • High-tension electrostatic classifier and separator, and associated method

Examples

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Embodiment Construction

[0040] The present invention will be described more fully hereinafter with reference to the accompanying drawings showing preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and they will convey the true scope of the invention to those skilled in the art. Like numerals refer to like parts throughout, with original number and second notations used to refer to like parts in alternative embodiments.

[0041] First refer to figure 1 , shows a hybrid electrostatic separator and separator 11. The electrostatic separator and separator 11 comprises a sump 12 , a corona separator section 13 , a first drum separator section 14 and a second plate separator section 15 . The storage tank 12 contains particulate matter 16 and dispenses the particulate matter 16 at a variable rate....

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PUM

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Abstract

Electrostatic separators and separators are supported by the housing and include a corona separator section for separating particulate material by size. A corona device provides flowing ions to bombard particulate material falling down a channel from a reservoir. A diverter and screen may be included in the channel to direct the particulate material to the corresponding particle size group. The first separator section receives the fine to medium size fraction and the second separator section receives the medium to coarse size fraction. A support frame with adjustable slots supports a plurality of static electrodes. Corona devices for discharging corona charges are generally spaced apart within the first quadrant of the first separator portion. A rotatable brush and an AC arc brush may be provided to remove the fine to medium size non-conductive particle size group from the first separator section. Additional diverters and / or baffles may be provided to help direct particle size groups of particulate material into corresponding containers, onto conveyor belts, and the like. In an alternative embodiment, the corona separator section may be housed and driven separately and independently of the first and second separator sections.

Description

technical field [0001] The present invention relates to an electrostatic separator for beneficiation or separation of particulate matter, more particularly, to such a high-voltage electrostatic separator and a corresponding method, the high-voltage electrostatic separator includes an electric separator for separating particulate matter according to size Halo Sorter Department. Background technique [0002] Electrostatic separators can have different conductive properties based on charging the particulate matter, which can then be separated when an external electric field is applied to the particulate matter. The three main charging mechanisms used for the electrical separation of particulate matter include induction, triboelectrification, and ion bombardment. Since the electrostatic forces generated by these mechanisms are directly proportional to the surface charge and electric field strength of the effective surface area of ​​the particulate matter, physical properties su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C7/00B03C7/02B03C7/12B03C7/06
CPCB03C7/06
Inventor 埃里克·S·扬托马斯·J·格雷凯文·R·麦克亨利
Owner OUTOTEC OYJ