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长期以来综放工作面因节假日及矿井大修等原因会经常停产,少则3~5 d,多则15~20d,在这期间极易产生煤炭的自然发火现象,故在停产期间必须要采取防治措施。大兴矿是一高瓦斯、发火期短的矿井,在矿井修仓及“五.一”长假期间(4月19日-5月8日)对N1E705综放面采取了综合防火防范措施,使得该面未有自然发火迹象。实践证明方法经济得当,而且标本兼治,综放面顺利恢复正常生产未受自然发火影响。
For a long time, the fully mechanized top coal caving face will be discontinued frequently due to holidays and overhaul of mines, ranging from 3 to 5 days and from 15 to 20 days in most cases. During this period, spontaneous combustion of coal is apt to occur. Therefore, prevention and treatment must be taken during the shutdown period Measures. Daxing Mine is a high-gas, short-lived coal mine. Comprehensive fire prevention measures have been taken for N1E705 fully mechanized top-coal caving face during mine repairs and the “May Day” holiday (April 19-May 8) Making the surface without signs of spontaneous fire. Practices have proved that the method is economical and proper, and the symptoms are tackled. The smooth recovery of normal face from the fully mechanized caving face is not affected by spontaneous combustion.