METHOD FOR EXTRACTING SMALL-SIZED GRAINS OF USEFUL COMPONENTS IN MINING OF HIGH-CLAY PLACER

摘要

FIELD: preparing of metal-bearing sands for concentration process. SUBSTANCE: method involves washing and disintegration of high-clay sands on perforated surface of hydraulic buddle; screening; gravitational concentration in deep and shallow sluices; rinsing concentrate from deep and shallow catching surfaces in tail and head parts; developing to placer metal. Washing and disintegration of high-clay sands are carried in parallel on horizontal and inclined perforated surfaces of hydraulic buddle, with number of said pairs exceeding one. Size of perforations is reducing from the top to the bottom in succession of arrangement of said surfaces. EFFECT: increased efficiency in extracting small grains of useful components and increased efficiency of perforated surfaces of hydraulic buddle. 2 ex