综采放顶煤开采不同放煤工艺的影响作用分析

Analysis of the Influence of Different Coal Mining Processes in Fully Mechanized Top Coal Mining

综采放顶煤开采是广泛使用的重要的放煤工艺,特别是针对急倾斜煤层的开采,可以提高煤矿的开采水平。针对放顶煤开采中不同的放煤工艺对煤炭产量及质量得到影响作用进行理论及实验分析,结果表明,多轮间隔放煤是急倾斜煤层综采放顶煤开采中最佳的放煤方式,此时的回采率及原煤产量最高,含矸率也相对较低。

Fully mechanized top coal caving mining is an important coal caving process widely used,especially for the mining of steeply inclined coal seams,which can improve the mining level of coal mines.Theoretical and experimental analysis was conducted on the impact of different coal drawing techniques on coal production and quality in top coal caving mining.The results showed that multiround interval coal drawing is the best coal drawing method in fully mechanized top coal caving mining in steeply inclined coal seams.At this time,the recovery rate and raw coal production are the highest,and the gangue content is relatively low.