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马脊梁矿石炭二叠纪3~#层煤8101工作面最短自然发火期为52 d,由于首采面圈出时间达1 a之久,早已超出自然发火期,自然发火势必成为制约工作面正常生产的隐患,首采面建立注氮、注浆、束管监测监控、采空区喷洒阻化剂防灭火系统,制订火灾防治措施,确保了8101工作面顺利完成开采任务。
Magnesite ore carbon Permian 3 ~ # 8101 face coal seam spontaneous shortest spontaneous period of 52 d, since the first mining surface lap up to 1 a long time, already beyond the natural ignition period, the natural fire is bound to become the normal working face constraints Production of hidden dangers, the first mining surface to establish nitrogen injection, grouting, beam tube monitoring and monitoring, mined area spray resistance agent fire extinguishing system, formulate fire prevention and control measures to ensure the successful completion of the mining task 8101 face.