巨厚易自燃煤层综放工作面回撤防灭火技术应用

The application of the fire-extinguishing Technology in the extremely thick and inflammable coal seam

9-15号煤层属特厚类煤层,平均厚度达34.11米,采用分层放顶煤开采,该,煤层自燃发火期为17天,(9-15)上04综放工作面与2011年10月28日开始创造停采条件,于2011年11月9日停采开始回撤,于2011年12月1日8点回撤结束,2011年12月2日3点安全封闭,标志着高瓦斯、易燃煤层开采防灭火工作取得了突破性进展。为硫磺沟矿区今后开采9-15#煤层的防灭火工作奠定了基础,为高瓦斯、易燃煤层安全开采奠定了基础。

No. 9- 15 coal seam of extremely thick seam,the average thickness of 34. 11 m,the longwall top coal caving mining,the coal seam spontaneous combustion period is for 17 days,（ 9- 15） 04 fully mechanized top coal caving face began to create conditions for recovery in October 28,2011,in November 9,2011 to stop mining began to withdraw,finished in December 1,2011,and workface safety closed in December 2,2011,marking,the high gas,inflammable coal seam,the fire prevention and control work has made breakthrough progress. Lay the foundation for fire prevention and extinguishing in Liuhuang Gou coal mining,and aslo for the coal mine safety of high gas,inflammable coal seam.