MINING-TRANSPORTATION COMPLEX FOR SUBSURFACE WORKS Russian patent published in 2011 - IPC E21F13/08 B65G19/26 

FIELD: mining.

SUBSTANCE: in complex based on horizontally closed scraper chain a traction element is arranged as double-chain. Scrapers at side external relative to longitudinal axis of conveyor and at the length of contour equal to length L of the conveyor are arranged with stands perpendicularly aligned to scrapers in the form of beams with equal resistance in mutually perpendicular planes. Detachable cutters are fixed on stands, being aligned aside from conveyor longitudinal axis, besides, height of cutter cutting edges and their location along height from upper plane of scrapers are defined based on mathematical ratios. At the same time total height of cutting edges in all cutters is equal to capacity of mineral bed, and location of scrapers with cutters along conveyor length is accepted as stepped with pitch between cutters l=L/n with increasing height of cutters location on scrapers h_i to the side opposite to direction of traction element movement. Besides, height b₀ of cutting edge in lower cutter is selected on the condition of providing zone cleaning near bed foundation, and height b₁ of cutting edge in the first cutter and height h of its location above upper plane of scraper are selected on the condition of providing strength of unit for fixation of stand with cutter to scraper. All scrapers equipped with cutters, at the side opposite to the cutters are equipped with additional vertically aligned stands of the same height, with the possibility of their interaction with vertical boards of panline both at weight-bearing and idle branches. Surfaces of additional stands at the side of panline boards are coated with a layer of antifriction material.

EFFECT: using scraper chain both as transportation device and a mining device.

5 dwg