WASHING DEVICE FOR GOLD RECOVERY Russian patent published in 2000 - IPC

FIELD: mining, particularly, mining of gold and other minerals from placers by washing on sluice boxes. SUBSTANCE: washing device includes hydraulic giant, hydraulic buddle, hydraulic elevator, pressure pulp line, sluice boxes of deep and shallow filling, conical hydraulic screen. The latter is installed after pressure pulp line and connected with thickener by means of outlet branch pipe of under-screen section of conical hydraulic screen. Outlet branch pipe of above-screen section of conical hydraulic screen is connected with sluice boxes of deep filling. In this case, outlet member of thickener is connected with sluice boxes of shallow filling. Discharge pipe of thickener is connected with sluice boxes of deep filling. EFFECT: higher efficiency of concentration and reduced expenditures for processing of sands. 2 dwg