论文部分内容阅读
铁煤集团大兴矿N2706综放工作面为高瓦斯、厚煤层、易自燃工作面,煤层之中还有火成岩侵入。与之相邻的N2702、N2703工作面回采过程中相继因自然发火而封闭工作面。N2706综放工作面在回采过程中,通过分析自然发火原因,利用采空区风火瓦斯耦合仿真软件横三区、纵三带划分,采取以注氮为主、注砂、封堵、注水为辅的综合防灭火措施,有效地控制了煤的自然发火,保证了煤矿安全生产。
Iron Ore Group Daxing mine N2706 fully mechanized caving face is high gas, thick seam, easy to spontaneous combustion face, there are also igneous rocks intrusion into. Adjacent N2702, N2703 face mining process have been closed due to spontaneous combustion and face. During the process of recovery, N2706 fully mechanized top-coal caving mining area was divided into three zones by vertical and horizontal zones by means of the simulation software of Fenghuo gas coupled with goaf, A comprehensive fire prevention and control measures to effectively control the spontaneous combustion of coal to ensure the safe production of coal mines.