牛儿庄矿设计能力为60万吨/年,1984年实际产量为87.8万吨/年。全矿井分三个水平,一水平已基本上采完,现主要生产在二水平,三水平正在延深。根据省厅批示,二水平按高沼气区域管理。牛儿庄矿全矿井采用中央对角式通风,副井和人行斜井兼作入风井,西风井和北风井为抽风井。总进风量为10015米~2/分,矿井 Niu Erzhuang mine design capacity of 600,000 tons / year, 1984 actual output of 878,000 tons / year. The mine is divided into three levels, one level has been basically picked up, the main production is in the second level, three levels are being deepened. According to the ministry’s instructions, the second level by the high biogas regional management. Niu Erzhuang whole mine using central diagonal ventilation, auxiliary shaft and pedestrian inclined shaft also serve as intake shaft, west shaft and north shaft as exhaust shaft. Total air volume is 10015 m ~ 2 / min, mine