摘要
针对"U"型通风易自然煤层开采条件下,采空区漏风使氧气与瓦斯混合具有爆炸危险性的问题,通过在采空区埋入甲烷及温度传感器进行观测,利用Fluent方法对采空区瓦斯分布规律进行模拟计算,分析瓦斯在自然发火危险区域中燃烧的可能性,对采空区内瓦斯与氧气相互达到爆炸危险的耦合区域进行危险判定分析,为现场瓦斯治理提供依据。
Under the mining condition of U-type ventilation and spontaneous combustion coal seam, the air leakage in goaf may create an environment with explosion hazard due to the mixing of oxygen and gas. Through the observation by embedding methane and temperature sensor in the goaf, the Fluent method is used to perform analog computation on gas distribution regularities of goaf, and the possibility of gas combustion in the dangerous area of spontaneous ignition is analyzed. Meanwhile, the hazard judgment and analysis is conducted on the explosion coupling area resulting from the interaction of gas and oxygen in the goaf,which provides the basis for field gas control.
作者
马金魁
苏学友
赵亮宏
MA Jinkui;SU Xueyou;ZHAO Lianghong(China Coal Technology and Engineering Group Shenyang Research Institute,Fushun 113122,China;State Key Laboratory of Coal Mine Safety Technology,Fushun 113122,Ckina;Dashuitou Coal Mine,Gansu Jingyuan Coal Industry and Electricity Power Co.,Ltd.,Baiyin 730913,China)
出处
《煤矿安全》
CAS
北大核心
2020年第8期216-219,共4页
Safety in Coal Mines
关键词
易燃煤层
采空区
瓦斯耦合
爆炸危险
自然发火区
combustible coal seam
goaf
gas coupling
explosion hazard
spontaneous ignition area
