SCRAPER CONVEYOR WITH THREE-CHAIN TOWLINE Russian patent published in 2014 - IPC B65G19/10 B65G19/22 

FIELD: machine building.

SUBSTANCE: scraper conveyor comprises endless closed towline resting on the guides of grooved panline (1), said towline being composed by three parallel pull chains, two outer chains (2, 3) and one inner chain (4). Scrapers (5) are secured by their ends to outer chains while scrapers (6) alternating with the former are arranged with clearance between outer chains and secured by their central part to inner chain. Height of scrapers secured at outer chains is 1.5 times larger than that of scrapers secured to inner chain at appropriate increase in the height of boards of panline.

EFFECT: higher efficiency.

4 cl, 2 dwg