摘要
在采煤工作面正常生产的情况下 ,通过在采空区埋设注氮检测管路 ,利用井下移动式制氮装置注氮检测 ,结合采空区遗煤自燃氧化理论进行分析 ,得出了注氮前后“三带”的分布状况 ,考察了制氮机组的性能 ,检验了注氮效果。
Under the normal production,nitrogen tubes were installed in goaf and nitrogen was filled by underground mobile nitrogen generetor.Based on the theory of spontanecus fire in goaf,the air distribution before and after nitrogen fill was worked out,the offect of nitrogen fill was tested.
出处
《山西煤炭》
2000年第3期47-49,共3页
Shanxi Coal
关键词
放顶煤
采空区
注氮防火
矿井火灾
自然火灾
caving roof
goaf
nitrogen fill to prevent fire
underground fire
