• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An electrostatic free-fall separator has a feeding arrangement located upstream of the separator for feeding of fine-particle material to be separated into the electrostatic free-fall separator, wherein the feeding arrangement is formed as a funnel with braking inserts of an electrically insulated material and has walls limiting at their lower edge a longitudinal outlet slot, wherein the funnel has an inlet which is formed by one wall portion which is parallel to the outlet slot and an opposite inclined guiding surface with a lower edge extending parallel to the one wall portion so as to limit simultaneously a passage leading to the outlet slot, and two substantially vertical electrodes are arranged below the passage at a distance from one another which is smaller than the width of the passage.
    公开号:SU1233791A3
    申请号:SU833653053
    申请日:1983-10-12
    公开日:1986-05-23
    发明作者:Фрике Гюнтер；Гайслер Иринг；Центграф Хельмут
    申请人:Кали Унд Зальц Аг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to the field of separation of finely divided substances in electrostatic free fall separators, in particular for the dry separation of ground triboelectrically charged potassium salts, and can be used to enrich minerals.
    . The purpose of the invention is to increase the accuracy of the separation process by creating two parallel layers of free-falling material.
    The drawing shows the device section.
    The device is limited outside the housing, the longitudinal walls of which and 2 in the upper part of the device are made vertical and in the lower part inclined. On one of these walls there is an inclined guide surface 3, the lower edge of which is bent vertically and parallel with respect to the vertical guide surface 4, so that both vertical guide surfaces form a narrow, longitudinally elongated inlet slot 5. Vertical guide The surface 4 through the horizontal surface 6 is connected to the housing. Under the elongated slot 5, there are two, also made in the form of vertical guide surfaces electrode 7 at a distance from each other that exceeds the width of the slot 5. These electrodes 7 terminate slightly above the horizontal guide surface 8, on the free longitudinal edges of which there are downward sloping guide surfaces 9. The horizontal guide bar the surface 8 is fixed on the upper edge of the vertical guide surface 10, which separates the outlet slot 11 in the middle and protrudes downward. Walls 1 and 2 have strips 12 with the upper horizontal surface entering the slot slot 1I. I
    The device works as follows
    The thinner material enters along the guiding surface 3–13 of the funnel, falls on the guiding surface 4 vertically in a downward direction and enters with a slower speed into the space between the electrodes. Here the particles are mate379 -2
    The rials are deflected according to their charge to the opposite electrode. Particles flow leaves in split form.
    5 inter electrode space. The particles deflected between the electrodes arrive at the corresponding guiding surface 9. From there they are directed to the inclined parts of the walls.
    ) 1 and 2 and are poured down to the slats 12. On their upper horizontal surface, a movable bed of a section of the material is formed, from which the particles fall down with a small initial velocity, being pre-sorted by their charge, as two homogeneous, parallel the electrodes of the film separator, into the electrostatic field of the separator operating on the principle of free fall. .
    The result of electrostatic separation in a separator on the principle of free fall is best,
    25 when the electrostatic field strength between the electrodes of the device is 6-12 kV / cm.
    Electrodes can be made of ob.1chny materials in technology, and
    30 may also consist of an aluminum foil worn on a synthetic material by an uncoated glass plate. With the exception of the electrodes, the entire device consists of electrical insulation
    35 of the relevant material. The corners and edges of the device are preferably rounded for TOGO; to avoid electrically: breakdown,
    Particles of Partitioning Material
    40 already in the boot device, pre-bogs in accordance with their mushroom-electric charge, are simultaneously lubricated and leave the boot device as two
    44 films directed parallel to each other; 5 in addition, it gives the particles maximum freedom of movement perpendicular to the plane of each n, foam ;.
    50 Separator electrodes and device electrodes, the material loading bar to the separator must have the same polarity of 5 tons, and the same polarity must be on one side.
    55 Accordingly, the film located closer to the electrode contains, due to the preliminary separation, relatively more charged particles.
    3
    opposite with respect to this electrode, so that these particles on their way in the direction of the electrode encounter interference from only a small number of oppositely charged particles and their mobility, therefore, increases.
    1233791
    Due to this, electrostatic separation is favored by the fact that both the residue that is separated from the separating material, 5 and the intermediate product, contain less valuable substances than when using known devices.
    Editor- L.Gratillo
    Compiled by E.Papkova.
    Tehred I.Popovich Proofreader M.Maksimishinets
    Order 2786/59 Circulation 514Subscription
    . .VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, - Zh-35, Raushsk nab., 4/5
    Production and printing enterprise, Uzhgorod, st. Project, 4
    权利要求:
    Claims (1)
    [1]
    DEVICE FOR LOADING FINE-DISPERSED MATERIAL INTO AN ELECTROSTATIC FREE FALLING SEPARATOR, including a funnel of electrical insulating material, formed by the walls of the funnel inlet slit located at the top of the device, formed by the walls of the funnel a rectangular outlet slit, which is located with the aim of raising accuracy of the separation process due to the creation of two parallel layers of freely falling material, the device is equipped with a separation plane, installed vertically in the middle of the outlet slit and protruding from the slit with its lower edge located horizontally on the upper edge of the separation plane, the guide plane, additional guide planes located on the lateral edges of the guide plane, and two flat vertically mounted electrodes of opposite polarity from an electrically conductive material, placed with a gap above the guide plane under the inlet slit, and the distance between the electrodes exceeds <g exceeds the width of the inlet slots, while one of the walls forming the inlet slit is installed vertically and the other is installed obliquely · and is made of electrical insulating material with a vertically bent bottom edge located parallel to the opposite vertical wall, while the edges of the walls forming the outlet slit are made in the form of strips with a horizontal top surface.
    > (X
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    同族专利:
    公开号 | 公开日
    DE3247064C1|1983-11-24|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US668791A|1899-03-16|1901-02-26|Lucien I Blake|Process of electrical separation of conductors from non-conductors.|
    US724679A|1901-03-25|1903-04-07|American Mining And Metal Extraction Company|Electrostatic separator.|
    US1071354A|1904-06-15|1913-08-26|Friedrich Oscar Schnelle|Electrical separator.|
    US2782923A|1951-03-30|1957-02-26|Internat Mincrals & Chemical C|Method and apparatus for beneficiating ore|
    US3143492A|1961-11-17|1964-08-04|Simpson Herbert Corp|Electrostatic separation|
    DE1174273B|1962-11-15|1964-07-23|Wintershall Ag|Braking and separating device for electrostatic separators|
    DE1174272B|1962-11-15|1964-07-23|Wintershall Ag|Device for even material distribution, especially for electrostatic separators|
    DE1174274B|1962-11-15|1964-07-23|Wintershall Ag|Electric free-fall separator with plate electrodes|
    DE2609048C2|1976-03-05|1983-12-15|Kali Und Salz Ag, 3500 Kassel|Method and device for the electrostatic processing of carnallite-containing crude potash salts|
    US4326951A|1980-03-17|1982-04-27|Broz Frank J|Electrostatic mineral concentrator|DE3439042C2|1984-10-25|1988-07-28|Kali Und Salz Ag, 3500 Kassel, De|
    DE4127572C1|1991-08-21|1993-03-11|Kali Und Salz Ag, 3500 Kassel, De|
    DE4343625C1|1993-12-21|1995-06-22|Kali & Salz Beteiligungs Ag|Pure kieserite recovery economically from preconcentrate|
    AUPM606494A0|1994-06-02|1994-06-23|Pozzolanic Enterprises Pty Ltd|Apparatus and method|
    KR100187968B1|1996-08-12|1999-06-01|이재근|Apparatus for separating uncombusted carbon powder of coal ash|
    US5944875A|1996-10-22|1999-08-31|University Of Kentucky Research Foundation|Triboelectric separator with mixing chamber and pre-separator|
    US5967331A|1997-10-27|1999-10-19|Katyshev; Anatoly L.|Method and apparatus for free fall electrostatic separation using triboelectric and corona charging|
    US6452126B1|1999-03-12|2002-09-17|Mba Polymers, Inc.|Electrostatic separation enhanced by media addition|
    JP5253708B2|2002-07-22|2013-07-31|エムビーエーポリマーズ，インコーポレイテッド|Mediating electrostatic separation|
    WO2014171612A1|2013-04-15|2014-10-23|주식회사 포스코|Raw material sorting apparatus and method therefor|
    CN103586136B|2013-11-12|2017-01-04|李佳|Waste and old mixing rigid plastics granule vortex air flow-high-pressure electrostatic segregation apparatus and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3247064A|DE3247064C1|1982-12-20|1982-12-20|Device for feeding finely divided material into electrostatic free-fall separators|
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