BED PLACER DEPOSIT MINING SCRAPER Russian patent published in 2004 - IPC

FIELD: mining equipment.

SUBSTANCE: invention relates to devices for transportation of lump and loose loads by dragging, namely to cable-drag scrapers used for mining bed placer deposits of diamonds, for instance, such as in Angola. Proposed scraper consists of two side walls interconnected by top crossmember, rear wall, trailing device for head and tail drag cables. Crossmember is made in form of cover connected with rear wall of scraper. Longitudinal profile of surface formed by them is described by curve of variable radius increasing from lower edge of rear wall to edge of cover from side of head cable. Cover is perforated with crosswise orientated slots arranged in staggered order whose width is to be less than minimum size of particles of diamond containing rock. Partitions pointed inwards the scraper are arranged at edges of slots from side of scraper rear wall.

EFFECT: increased efficiency and capacity of scraper.

2 dwg