摘要
大采高易自燃煤层工作面阶段防灭火技术:一是建立自然发火指标体系;二是实施采空区注液氮;三是采用均压通风。对工作面阶段防灭火主要从发火原因分析,气体监测入手,分初采初放、正常回采、回撤收尾3个阶段进行防灭火工作,从不同层面、不同角度研究防灭火的关键技术,并进行总结。
The stage fire prevention and control technology is used for the large mining height spontaneous combustion working face.First,the spontaneous combustion index system is established; Second,the liquid nitrogen injection is implemented in goaf; Thirdly,the pressure balancing ventilation is used. The fire prevention and control technology is analyzed through the fire reason and gas monitoring in working face. The fire prevention and control work includes initial mining,normal mining and retracement ending. The key technology of fire prevention and control is studied and summarized from different levels,different angles.
出处
《煤矿安全》
CAS
北大核心
2015年第3期226-228,233,共4页
Safety in Coal Mines
关键词
大采高
阶段
防灭火
自然发火
注氮
均压通风
large mining height
stage
fire prevention and control
spontaneous combustion
nitrogen injection
pressure balancing ventilation
