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针对红柳煤矿I010303综采工作面收尾期间漏风大、回收支架时间长、煤柱易自燃等特点,结合煤的赋存条件,分析总结了综采工作面收尾期间防灭火的特点及难点,采用注氮、灌浆等措施对收尾期间的3个过程停采前、回收支架期间、工作面封闭和封闭后进行处理,有效地防止了复燃,保证了工作面的正常回撤。
Aiming at the characteristics of large air leakage, long recovery bracket and spontaneous combustion of coal pillar during the completion of I010303 fully mechanized coal mining face in Hongliu Coal Mine, the characteristics and difficulties of fire prevention and extinguishment during the completion of fully mechanized coal mining face are analyzed and summarized according to the occurrence conditions of coal. Nitrogen, grouting and other measures on the closing period of the three processes before stopping mining, during stent recovery, the face closed and closed after treatment, effectively prevent the re-ignition, to ensure the normal face retracement.