摘要
以羊场湾煤矿120204大采高综采工作面回收为背景,论述了地表钻孔注液氮防灭火技术原理、技术工艺、井下液氮钻孔布置情况及地表钻孔灌注液氮最大允许注氮量。对比工作面注液氮前后温度和CO浓度变化情况说明实施的效果,确保了工作面的安全回收。
Based on the recovery of 120204 fully mechanized working face with great mining height in Yangchangwan Coal Mine, the technical principle, process, layout of underground boreholes for liquid nitrogen injection and the maximum allowable nitrogen injected volume were described. The temperatures and the CO concentrations at working face before and after liquid ni trogen injection were compared. The results showed that the safe recovery of working face was guaranteed.
出处
《中国煤炭》
北大核心
2013年第3期102-104,110,共4页
China Coal
关键词
地表钻孔
液氮
防灭火
羊场湾煤矿
drilling, liquid nitrogen, fire prevention and extinguishment, ground,Yangchangwan Coal Mine
作者简介
王学兵（1971-），男，宁夏平罗人，采煤工程师，1995年毕业于宁夏煤炭工业大学采矿专业，现任神华宁煤集团有限责任公司羊场湾煤矿通风副总工程师，主要从事煤矿“一通三防”技术管理工作。
