| 摘要 |
PCT No. PCT/GB91/02106 Sec. 371 Date Apr. 7, 1993 Sec. 102(e) Date Apr. 7, 1993 PCT Filed Nov. 28, 1991 PCT Pub. No. WO92/09743 PCT Pub. Date Jun. 11, 1992.A process for continuously separating relatively coarse particles from a suspension of a mixture of particles in a liquid wherein the suspension is caused to pass through a screening medium which is rotating in its own plane so that the coarse particles are retained on the surface of the screening medium; characterized in that atmospheric pressure above the screening medium is caused to be in excess of the pressure below that medium.
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