METHOD FOR EXTRACTING SMALL-SIZED GRAINS OF USEFUL COMPONENT IN MINING OF BOLDER CLAY PLACER Russian patent published in 2003 - IPC

Abstract RU 2209676 C1

FIELD: preparing of metal-bearing sands for concentration process. SUBSTANCE: method involves washing and softening of bolder clay sand on perforated surface of hydraulic buddle; screening; providing gravitational concentration in deep and shallow sluices; rinsing concentrate from deep and shallow catching surfaces in head and tail parts; developing to placer metal. Washing and softening of bolder clay sand on perforated surface of hydraulic buddle are carried out in single pass by rotational movement from proximal edge of perforated surface and along it to provide for discharging of bolder pebbles in pile with the use of gyro monitor jet formed by means of several guns into single continuous jet line of size equal to width of perforated surface for washing away and softening of bolder clay sand. EFFECT: increased efficiency of perforated surface of hydraulic buddle. 2 ex

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RU 2 209 676 C1

Authors

Galajko V.V.

Galajko A.V.

Dates

2003-08-10—Published

2002-01-28—Filed