Coal quality characteristics and mining technology evaluation of minable coal seams in peripheral blocks of Chenzhao Coal Mine
Based on the geological exploration data and experimental test results of the peripheral blocks of Chenzhao Coal Mine,the coal rock characteristics,industrial analysis,process performance and simple washability of the main mineable coal seams in the study area were analyzed,and the mining technical conditions of the main mineable coal seams were evaluated.The results show that the macroscopic coal-rock types of the main minable coal seams in the study area are mainly semi-bright-bright,and the microscopic coal-rock types are mainly micro-mirror coal,followed by micro-mirror inert coal.I5 and Ⅱ1 coal belong to medium ash,low volatile,medium-medium high sulfur,medium-high calorific value anthracite;the No.1-5 and No.2-1 coal seams are relatively stable coal seams.The No.1-5 coal seam is locally recoverable,and the No.2-1 coal seam is recoverable in the whole area.The hydrogeological,engineering geology,gas,coal dust explosion,coal spontaneous combustion tendency and other mining technical conditions in the study area are evaluated,which are beneficial to the safe development of coal mines.
万方数据
维普
