MINING-AND-HAULING COMPLEX FOR UNDERGROUND JOBS Russian patent published in 2011 - IPC E21C27/32 

FIELD: mining.

SUBSTANCE: invention relates to mining, particularly, to mining-and-hauling complexes, and can be used in development of sheet deposits. Mining-and-hauling complex comprises horizontally enclosed chain haulage member with rectangular scrapers secured thereto across conveyor flight to make load-carrying run and idle run. Note here that every scraper is arranged on horizontal link of haulage member round-link chain to allow interaction between cylindrical cutouts on scraper with straight section of bar that makes chain link on its half diameter. Scraper is locked by means of detachable half-coupling on outer chain link to allow the scraper to turn about conveyor axis. Pan line, nearby drive and driven sprockets, has curvilinear transition sections with transition from flat horizontal to flat vertical arrangement directly before drive and driven sprockets. Scraper outer edges, on the side of pan line in vertical plane, are curvilinear to interact with curvilinear surfaces of pan line at transition sections. Scrapers, on the side of pan line, have cutouts. Note here that cutout height from chain horizontal link is taken to exceed half the width of the link. Two-chain haulage member is provided with scrapers arranged on outer side of conveyor lengthwise axis. Note that the struts are oriented perpendicular to scrapers and represent equal-resistance beams arranged in mutually perpendicular planes. Detachable tools are directed outward from conveyor lengthwise axis. Top edge of said tools is located at a height from pan line base bottom plane. Arrangement of tools, except for lower tool, and distance between scrapers equipped with tools are defined from mathematical expressions. Note here that stepped arrangement of scrapers features increase in scraper position height toward the side opposite the haulage member motion direction. Note that all scrapers are furnished with tools and provided with additional vertical identical-height struts to interact with vertical sides of pan line on both load-carrying and idle conveyor runs. Surfaces of additional struts on the side of pan line sides are coated by antifriction material layer.

EFFECT: higher efficiency due to increased width of conveyor pan line.

5 dwg