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介绍了大隆矿W2708采煤工作面回采期间,在采取采空区埋管注氮、注砂、上邻近层瓦斯道注浆、工作面合理配风等技术措施的基础上,在工作面顶板裂隙带施工消火钻孔注水、注白泥、注三相泡沫,有效控制了W2708采空区自然发火隐患,保证了工作面正常回采和安全回撤,同时对研究大采高复合煤层顶板综采工作面防治发火提供了宝贵经验。
This paper introduces the technical measures of taking the nitrogen in the gob of the gob of the W2708 coal mining face, injecting nitrogen in the gob of the gob, injecting sand, injecting the gas in the adjacent layer, and distributing the gas rationally in the face, Fissure zone fire drill water injection, white mud, note three-phase foam, effectively control the potential gob hidden trouble W2708 goaf, to ensure the normal mining face and safety retracement, at the same time to study the large mining high compound coal seam roof fully mechanized mining Preventive work on the face provided valuable experience.