Electrostatic free-fall separator with feeding arrangement
    2.
    发明授权
    Electrostatic free-fall separator with feeding arrangement 失效
    静电自由落体分离器,具有进料装置

    公开(公告)号:US4557827A

    公开(公告)日:1985-12-10

    申请号:US548072

    申请日:1983-10-31

    IPC分类号: B03C7/00 B03C7/12

    CPC分类号: B03C7/12

    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.

    摘要翻译: 静电自由落体分离器具有位于分离器上游的进料装置,用于将要分离的微粒材料供给到静电自由落体分离器中,其中进料装置形成为具有电绝缘材料的制动插入件的漏斗 并且具有在其下边缘处限定纵向出口狭槽的壁,其中漏斗具有由平行于出口狭槽的一个壁部分形成的入口和具有平行于所述一个壁部分延伸的下边缘的相对的倾斜引导表面 以便同时限制通向出口槽的通道,并且两个基本上垂直的电极布置在通道下方彼此距离小于通道宽度的距离处。

    Process for the electrostatic separation of crude potash salts
    3.
    发明授权
    Process for the electrostatic separation of crude potash salts 失效
    粗制钾盐的静电分离方法

    公开(公告)号:US4276154A

    公开(公告)日:1981-06-30

    申请号:US21278

    申请日:1979-03-16

    CPC分类号: C01D3/08 B03C7/003

    摘要: Crude potash salt is conditioned for separation into its components by means of an electrostatic field by grinding the salt to disintegration and contacting the ground salt with a conditioning agent, such as salicylic acid, which has been converted to the gaseous state, such that the conditioning agent draws up onto the surfaces of the salt crystals by absorption. The quantity of the conditioning agent employed is adjusted by varying the evaporation temperature and/or by varying the volume of heated air and/or inert gas, serving as a carrier material.

    摘要翻译: 通过研磨盐将磨碎的盐与已经转化为气态的调节剂(如水杨酸)接触,使粗制的钾盐通过静电场分离成其组分,使得调理剂 药剂通过吸收吸附在盐晶体的表面上。 通过改变蒸发温度和/或通过改变用作载体材料的加热空气和/或惰性气体的体积来调节所用调理剂的量。

    Electrostatic treatment of milled crude potash salts containing kieserite
    5.
    发明授权
    Electrostatic treatment of milled crude potash salts containing kieserite 失效
    含有硅藻土的磨碎的粗钾盐的静电处理

    公开(公告)号:US4767506A

    公开(公告)日:1988-08-30

    申请号:US081525

    申请日:1987-08-03

    申请人: Gunter Fricke

    发明人: Gunter Fricke

    摘要: A process is disclosed for the preparation of milled crude potash salts containing kieserite, whereby the crude potash salt is conditioned at first with a chemical conditioning agent and subsequently with an auxiliary conditioning agent, whereupon the crude potash salt is fed to an electrostatic free fall separator.

    摘要翻译: 公开了一种用于制备含有硅藻土的碾磨的粗钾盐的方法,其中初始的钾盐首先用化学调节剂调节,随后用辅助调理剂调节,然后将粗钾盐进料到静电自由落下分离器 。

    Process and apparatus for the electrostatic dressing of
carnallite-containing crude potassium salts
    6.
    发明授权
    Process and apparatus for the electrostatic dressing of carnallite-containing crude potassium salts 失效
    含光卤石的粗钾盐的静电敷料的方法和装置

    公开(公告)号:US4297207A

    公开(公告)日:1981-10-27

    申请号:US25521

    申请日:1979-03-30

    IPC分类号: B03C7/02 B03C7/12 B03B1/00

    CPC分类号: B03C7/12

    摘要: A carnallite-containing crude salt is separated into a carnallite fraction, a sylvite fraction and an abandonable residue by grinding the salt to an average particle size of about 1.5 mm., conditioning the particles in a conventional manner with from 5-300 g/t of a conventional conditioning agent adjusting the relative humidity of the conditioned particles to 5-25%, and subjecting the resulting particles to electrostatic separation in two stages, wherein in the first stage the particles are subjected to a high voltage electric field having a field length of 0.4 to 1.2 m to separate a carnallite fraction by imparting to the carnallite fraction a high sidewards velocity relative to the initial downward velocity upon entering the field, thereby causing deflection of the carnallite away from a middlings fraction, and wherein in the second stage the first stage middling fracton is subjected to a second high voltage electric field having a field length of 1.5 to 2.5 m to f or m a sylvite fraction, a second middlings fraction which also has a high sidewards velocity imparted thereto relative to the initial downward velocity upon entry into the second field thereby causing deflection of the sylvite fraction away from and an abandonable residue which has a sidewards velocity imparted thereto opposite in direction to the sidewards velocity of the sylvite for deflection therefrom and from the second middlings fraction.

    摘要翻译: 含有光卤石的粗盐通过将盐研磨至约1.5mm的平均粒径,分离成光卤石级分,硅藻土级分和可弃残余物,以常规方式用5-300g / t调理颗粒 将调节颗粒的相对湿度调节至5-25%的常规调理剂,并将所得颗粒进行两个阶段的静电分离,其中在第一阶段中,对颗粒进行具有场长度的高压电场 为0.4〜1.2μm,通过使光卤石部分在进入场时相对于初始向下速度施加高的侧向速度来分离光卤石部分,从而引起光卤石偏离中间部分,并且其中在第二阶段中 将第一阶段中间分枝经历场长为1.5至2.5μm的第二高电压电场至f或ma sylvite fra 第二中间部分在进入第二场时相对于初始向下速度赋予其较高的侧向速度,从而导致锯齿岩部分偏离,并且可抛弃的残余物具有向其相反的方向施加的侧向速度 以及从第二中间部分偏转的硅藻土的侧向速度。