QUARRY Russian patent published in 2017 - IPC E21C41/26 

FIELD: mining.

SUBSTANCE: quarry includes a rib with capital automobile entry, located between the routes of steeply-inclined conveyor lifts, located along the borders of this rib with quarry ribs opposite to each other. The lifts come to the surface on opposite sides of the quarry and serve for delivery of ore to crushing and recovery plan and overburden rock to the overburden rock stockpiles. The rib with the capital entry also includes pads for crushing and reloading locations, serving for the crushing mudded ore and overburden rocks, and the tail sections of the steeply-inclined conveyor lifts. At the same time, the capital entry serves for dump trucks entry from working area of the quarry to unloading pads of both crushing and reloading locations.

EFFECT: reduction of the volume of excavation of overburden for car arrivals from the working area of the quarry to the unloading sites of crushing and reloading points.

2 dwg