METHOD TO CARRY-OVER COAL FOR DISPATCH ON COAL STRIP MINES AND CONVEYOR FOR ITS REALISATION Russian patent published in 2013 - IPC E21F13/08 B07B1/00 

FIELD: mining.

SUBSTANCE: method includes feeding coal along the main external chain scraper conveyor from a receiving hopper to rolling stock, providing for automatic separation of coal into fractions in process of coal feeding, for instance, into three fractions, siftings - up to 15 mm, bean - up to 35 mm and coarse coal, with preliminary crushing and dosed discharge of coal. At the same time automatic separation of coal into fractions is carried out as coal moves along the main external chain scraper conveyor, for instance, to a half of conveyor length - to the siftings fraction, and on the other half - to the bean fraction, at the same time discharge and carry-over of fractional coal is carried out automatically by a lower idle branch of the main chain scraper conveyor with siftings fraction discharge into a tray of one belt conveyor, the bean fraction - into a tray of another belt conveyor, and coarse coal is carried over by the upper branch of the main external chain scraper conveyor directly to the rolling stock, besides, coal separation into siftings and bean fractions is carried out by sectors.

EFFECT: simplified design and improvement of efficiency.

2 cl, 2 dwg