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北京京煤集团所属昊华能源股份有限公司(以下简称“昊华能源”)的前身是北京矿务局,辖京西矿区包括木城涧煤矿、大台煤矿、大安山煤矿和长沟峪煤矿,是国内无烟煤重要生产基地之一。由于京西煤田地质构造十分复杂,煤层赋存极不稳定,原北京矿务局各煤矿一直沿用陷落式、仓储式等落后采煤方法,曾试验过滑移顶梁、水力采煤、急倾斜西班牙机组、80机组和150机组高档普采等采煤工艺,但均未成功。落后的生产
The predecessor of Beijing Haohua Energy Co., Ltd. (hereinafter referred to as “Haohua Energy”) owned by Beijing Jingmei Group is Beijing Mining Bureau. The jurisdiction of Beijing West Mine includes Muchengjian Coal Mine, Datai Coal Mine, Daanshan Coal Mine and Changgouyu Mine Coal mines, is one of the important production base of anthracite. Due to the complicated geological structure of Beijing West Coalfield and the extremely unstable coal seams, all the coal mines in the former Beijing Mining Bureau have been using backward coal mining methods such as slump-type and storage-type. They have experimented with sliding roof beams, hydraulic coal mining, Spanish unit, 80 units and 150 units of high-grade general mining and other mining processes, but were unsuccessful. Outdated production