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    • 1. 发明授权
    • Method and apparatus for centrifuging fluid mixtures and selectively removing liquid material therefrom
    • 用于离心流体混合物的方法和装置,并选择性地除去液体物质
    • US3703983A
    • 1972-11-28
    • US3703983D
    • 1971-01-28
    • LAVAL SEPARATOR CO DE
    • THOLL DAVID M
    • B04B11/04B04B11/08B04B11/00
    • B04B11/08B04B11/04
    • A fluid mixture is received in a basket and rotated at high speed to form centrifugally separated inner and outer masses of material. Planing surface means is supported within the basket in normally spaced relation to the said inner mass of material. An actuating device forces the planing surface means radially outwardly against the resistance to displacement of the inner mass of material as it revolves. The actuating device is controlled to move the planing surface means radially outwardly under a substantially constant pressure which may be regulated to differentiate between resistance to displacement of the outer mass and resistance to displacement of the inner mass. The extent of travel of the planing surface means may, by means of the regulated pressure, be limited to the boundary region or interface occurring between the inner and outer masses of material. A fluid skimming tube has its tip adjustably supported in the planing surface means in slightly recessed relation such that the fluid portion of the inner mass is progressively removed as the planing surface means is travelled outwardly. When the planing surface means finds the outer mass of centrifuged material, outward travel stops and no further removal of material takes place. Pressure changes occurring when removal of material stops are utilized to control return of the planing surface means to a starting position.
    • 将流体混合物接收在篮中并高速旋转以形成离心分离的内部和外部材料块。 倾斜表面装置以与所述内部材料质量呈正常间隔的关系支撑在篮子内。 致动装置迫使刨削表面径向向外抵抗内部材料在其旋转时的位移阻力。 控制致动装置以在基本上恒定的压力下径向向外移动刨削表面装置,该压力可被调节以区分外部质量的阻力与内部质量的位移之间的差异。 刨削面装置的行程可以通过调节压力限制在内外质量材料之间发生的边界区域或界面。 流体撇取管的尖端可调节地支撑在刨削表面装置中,以稍微凹陷的关系,使得随着刨削表面装置向外行进,内部物料的流体部分被逐渐去除。 当刨削表面找到离心材料的外部质量时,向外行进停止,并且不会进一步去除材料。 使用去除材料挡块时发生的压力变化来控制刨削表面装置返回到起始位置。