提高放顶煤工作面回采率的技术实践

Recovery increasing methods of sublevel caving coal working face

结合瑞隆矿的地质条件和设备特征,从调整放煤顺序、选择合理放煤步距、安装收煤器、加强端头顶煤回收等方面入手,系统阐述了提高放顶煤工作面回采率的技术及实践。通过实践,瑞隆矿的放顶煤回采率明显提高,达到了85%以上,这对相似地质和设备条件下的同类矿井具有一定的推广价值。

Based on the geo recovery increasing methods logical of subl conditions and equipments characteristics of Ruilong coal mine, introduce the evel caving coal working face from the interval, installing coal collector, strengthening the recovery of ti that, after transformation, the recovery of sublevel caving coal similar coal mines aspects of adjusting drawing sequence and p sublevel caving coal and the like. The is more than 85 percent, it provides results show reference for