METHOD FOR EXTRACTION AND PRIMARY CONCENTRATION OF DIAMOND-PLACERS Russian patent published in 2004 - IPC

FIELD: mining industry.

SUBSTANCE: method includes performing preparatory mining operations with use of capping rock formations for outer dumps, forming of area of capping rock formations, forming of collector pool in extracted space, capping of peat and placement of it in extracted space, layer-wise extraction of sands and their transporting to plant, movement of plant with extraction of placer. Area of capping rock formations is formed in extracted space, peat dumps are first placed at placer edge, and then, after extraction of areas, it is transported to extracted space, a plant in form of module sorting complex is placed on formed area in extracted space, silt fraction is directed to collector pool, boulders and stones are directed to outer dumps with their later displacement after extraction of placer into extracted space, and productive class is transported to concentrating complex.

EFFECT: higher effectiveness of extraction of remote diamond-placers.

1 ex, 1 dwg