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

摘要

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.