摘要
对淮南矿区综采工作面如何建立氮气防灭火系统进行了探讨,在采空区预埋束管,测量在注氮与不注氮情况下各测点氧气浓度的变化情况,为确定合理的注氮工艺和提高注氮效果提供了科学的指导。
It discusses how to build up the fire-preventing and fighting system of nitrogen gas for the integrated collection working of mineral areas in Huainan.Burying pipes at goaf previously.Then measure the variation of concentration of oxygen at each point under the cases of whether grouping nitrogen or not.On this basis,can choose reasonable nitrogen grouping technology and improve its effect under scientific direction.
出处
《山西建筑》
2008年第16期204-205,共2页
Shanxi Architecture
关键词
浓度
采空区
注氮工艺
density,emply-exploiting area,injecting nitrogen craft
