Application of Fire Prevention and Extinguishing Technology in Goaf of Fully Mechanized Mining Face
Due to the phenomenon of CO exceeding the limit in the goaf of the N10909 working face of Shenjiazhuang Coal Mine in the early stage of mining,it seriously restricts the safe and efficient mining of the working face.The main reasons for CO exceeding the limit in the goaf were analyzed from the aspects of coal oxidation,geological structure,air leakage,and monitoring of the goaf.Based on the current mining situation of the working face,measures such as nitrogen injection for fire prevention,installation of air guide devices,and installation of bundle monitoring were taken for the working face.Practical applications have shown that after adopting comprehensive fire prevention measures,the CO concentration in the goaf during the later mining process of the working face is controlled below 0.002 4％,achieving significant application results.
fully mechanized mining facegoafCO exceeds the limitcomprehensive mining management technology
NETL
NSTL
万方数据
