FIELD: mineral concentration. SUBSTANCE: initial material is supplied to the working surface. Material is separated under the effect of periodic water ascending and descending flows of water with increased velocity of descending flow of water. Products of separation are with drawn. Velocity of descending flow of water is increased by stepped manner on the last stage of descending flow of water. EFFECT: higher efficiency. 1 dwg, 1 tbl
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Authors
Dates
1997-04-20—Published
1994-03-24—Filed