FIELD: mining.
SUBSTANCE: method includes creation of grinding-reloading stations at the pit wall on the basis of crushers of coarse and medium crushing for transportation of rock mass by conveyors with inclination of 35-40°. Microaction at bulk pieces is carried out by intense central impact of massive hammers for crushing of bulk fraction resulting in formation of 2-3 large and a group of small fragments moved with the help of a brush for cleaning and movement of the material towards another quick-acting hammer for subsequent reduction of their dimensions to 200-250 mm and transfer into mobile cone crushers of medium crushing. Afterwards the ground material of low size arrives to steep inclined conveyors, to increase mobility and quick displacement from one place into another, crushing devices are made in the form of vertical modules and arranged horizontally.
EFFECT: increased efficiency of rock mass preparation on pits and for wide application of inclined and steep inclined conveyors on pits.
1 ex, 10 dwg
