摘要
沙吉海煤矿综放工作面采用注氮、注浆、喷洒阻化剂方法综合防火效果不明显,工作面回风隅角一氧化碳浓度较高。通过增设氮气制冷设备,在工作面进风顺槽铺设注氮管,注氮释放口设在采空区氧化带内,间距20-63.6 m,连续压注低温氮气置换氧气,降低采空区温度,取得了良好的采空区防火效果。
Aiming at bad comprehensive fire prevention effect of nitrogen injection,grouting and chemical inhibitor spraying and high carbon monoxide concentration in the corner of the return air at fully-mechanized caving face of Shajihai Colliery,the author proposes adding nitrogen refrigeration equipment and laying nitrogen injection pipe in the air inlet crossheading with nitrogen injection release mouth in the oxidation zone of the goaf with an interval of 20-63.6 m,which can achieve good results with low-temperature nitrogen continuously injected to replace oxygen and reduce the temperature of the goaf.
作者
臧燕杰
杨彦龙
Zang Yanjie;Yang Yanlong(Shajihai Colliery,National Energy Group,Hebukesai'er,Xinjiang 834411)
出处
《江西煤炭科技》
2022年第4期158-161,共4页
Jiangxi Coal Science & Technology
关键词
综放工作面
采空区防火
低温注氮
应用
fully-mechanized caving face
goaf fire prevention
low temperature nitrogen injection
application
