Analysis of longwall face output in screw-type cutter–loader-and-scraper conveyor system in underground mining of flat-lying coal beds

Abstract

The article gives the analysis of basic mechanisms in variation of output of longwall face versus its length in the cutter–loader and scrape conveyor system in underground mining of flat-lying coal beds. Based on the analysis of interaction between cutter–loader and scrape conveyor, the dependence between the maximum output of longwall face and the longwall length is determined.