摘要
以110205回撤工作面自然发火为研究对象,综合分析发火原因,确定火区重点区域,采取地面裂缝掩埋回填、井下构筑均压通风设施、整体注液态N_2、CO_2、局部钻孔注胶的综合方案,使回撤空间温度由38℃降到18℃、CO浓度从0.012%降到0.0005%,控制了工作面火灾。
Taking the coal spontaneous combustion of 110205 working face during recovery operations as the research object,the reasons of coal spontaneous combustion were analyzed and the its key areas were determined.The comprehensive countermeasures that included burying and backfilling the surface fractures,constructing the facilities of pressure balance ventilation,injecting the liquid nitrogen and carbon-dioxide into the goaf,local gel injection,which made the temperature of recovery operation space dropping from 38°C to 18°C,the carbon-monoxide concentration dropping from 0.012% to 0.0005%and controlled the coal spontaneous combustion.
出处
《中国煤炭》
北大核心
2016年第4期107-111,共5页
China Coal
关键词
回撤工作面
自然发火
综合防灭火工艺
液态N_2
液态CO_2
均压通风
局部注胶
working face
spontaneous combustion
comprehensive fire prevention technology
liquid nitrogen
liquid carbon-dioxide
pressure balance ventilation
local gel injection
