RELOADING AND FORMING DEVICE FOR LUMP DELIVERY OF ROCK Russian patent published in 2003 - IPC

FIELD: mining. SUBSTANCE: invention relates to devices for transportation and lump-by-lump deliveries of rock material. It can be used in process of sorting of lumps of mineralized rock into ore-bearing and barren rock parts. Device contains charging hopper with rock mass distributor, line of belt conveyors with drive in which conveyors are installed in tandem with vertical displacement relative to each other. All said devices are installed in direction of material transportation. Proposed device is provided with material separation unit and at least one additional line of belt conveyors with drive in which conveyors are installed in tandem with vertical displacement relative to each other. Speed of following conveyor is greater than speed of preceding conveyor in direction of lump material transportation. Material separation unit is made in form of additional conveyor installed after hopper and between first conveyors of lines. Said additional conveyor is installed with vertical displacement relative to first conveyors, speed of additional conveyor being less than speed of first conveyors of lines. Additional conveyor and first conveyors of lines are installed with cross displacement in horizontal plane and are furnished with deflectors to trip material from preceding conveyor onto following conveyor, some of which being made in form of plates installed at angle to direction of conveyor belt movement and joining by their shorter sides. Lower edges of longer sides are arranged with clearance over belt, and others are made in form of plates installed at angle to direction of belt movement, with lower edges of longer sides being arranged with clearance over belts. Conveyors are furnished with plates-slides in zone of arrangement of deflectors from sides of their working surfaces. Upper longitudinal edge of plates-slides is located along edge of belt not higher than its surface, and lower edge is arranged with clearance over belt of following conveyor. Each conveyor is provided with side guides for material flow. One of sections of guides for each preceding and following conveyor is common. Conveyors in zone of arrangement of deflectors have no side guides at side pointed to working surface of deflectors. EFFECT: facilitated servicing, improved reliability in operation. 7 cl