BOULDER CRUSHING UNIT FOR SCRAPER CHAIN CONVEYOR Russian patent published in 2018 - IPC E21F13/06 B02C4/10 

FIELD: mining.

SUBSTANCE: crushing unit contains a tray with a conveyor branch segment to control the enclosed conveyor means limited by the first external longitudinal side of the tray and the second external longitudinal side of the tray opposite the first external longitudinal side of the tray. Both the first external longitudinal side of the tray and the second external longitudinal side of the tray include many first tray fasteners designed to attach with an option to remove the base frame, a base frame assembly, which (depending on the end sections of the face conveyor into which the end sections of the coarse crushing unit must be placed) is attached with a possibility of removal by the first tray fasteners to the first external longitudinal side of the tray or the second external longitudinal side of the tray, turned away from the working face, and a support arm unit attached to the base frame with a possibility of withdrawal.

EFFECT: increased efficiency of the crushing unit.

15 cl, 8 dwg