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Process and apparatus for separating mixtures of particles differing in specific gravity into a fraction containing the particles of low specific gravity and another fraction containing the particles of high specific gravity
Process and apparatus for separating mixtures of particles differing in specific gravity into a fraction containing the particles of low specific gravity and another fraction containing the particles of high specific gravity
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机译：将比重不同的颗粒的混合物分离成含有低比重的颗粒的部分和含有高比重的颗粒的另一部分的方法和设备
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709,980. Washing granular material. MAATSCHAPPIJ VOOR KOLENBEWERKING STAMICARBON N.V. May 12, 1952 [May 15, 1951], No. 11986/52. Class 82 (2) A sink and float process of the kind in which the wash-box has an inclined bottom over and up which the settled heavy particles are carried by a screw conveyer to the discharge at the shallow end of the box, has a liquid current flowing in a direction opposite to the direction of conveyance of the screw to prevent the light particles in the shallow end of the box discharging with the heavy particles. The washbox 1 has a partition 6 dividing it into deep and shallow compartments, and a screw conveyor 10 to discharge the sinks at 11. The light particles are discharged at 17 and a mechanical scraper 16 may be provided to assist the discharge. Separating liquid is introduced at 13 to give the required liquid current. A vaned wheel 18 may also be provided to cause or assist the current. The infeed is made at 15.
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