FIELD: mining.
SUBSTANCE: method involves creation of crushing and reloading stations of a semi-stationary type in sections of boards mainly on the basis of jaw crushers by obtaining a lump with the size of 400-450 mm, and then, additional crushing in screw-and-tooth crushers. Supply of rock mass by means of a feeder to a hopper with further supply to a crushing device for destruction of large lumps with the size of 700-1200 mm by means of a hammer connected with a tie-rod to a rotating flywheel with a slot, and for destruction of average lumps with the size of 400-700 mm by means of a hammer connected to the flywheel through a pin, after lumps are crushed to the sizes of 250-300 mm, they are transferred by means of feeders and conveyors to mobile cone-shaped crushers of average crushing. After that, crushed material of small size is supplied to inclined and high-angle and vertical conveyors to improve mobility and quick movement from one place to another; crushing devices are made in the form of vertical modules and located horizontally, and if necessary, productivity of a crushing device can be increased; for that purpose, more than one slits is made in a plate 250-300 mm wide, and two more slits are made in side zones. With that, impact plate may have supporting surface and possibility of quick movement.
EFFECT: improving efficiency and productivity of a crushing link and wide application of inclined and high-angle conveyors on pits.
1 ex, 7 dwg
