1974年12月,德国煤矿首次使用了氮气惰化方法.至1985年7月止,又73次使用氮气扑灭明火和矿井隐蔽火,缩封和窒熄火区.惰化的重要意义在于扑灭井下灭火时能消除爆炸危险,这一点是毫无争议的.在高温矿井工作区,输进凉爽干燥的氮气,能为救护队员创造更好的工作条件.值得一提的是,注氮使得生产得以继续,设备得以挽救,有着明显的经济效益. In December 1974, for the first time in Germany, a nitrogen inerting method was used, and by July of that year, nitrogen was used again to extinguish open fires and mine concealed fires, deflate and extinguish fire areas by 73 July 1985. The significance of inertization is extinguishing underground fires It is uncontroversial to eliminate the danger of an explosion, and the introduction of cool, dry nitrogen in the high-temperature mine workspace creates better working conditions for the ambulance crew. It is worth mentioning that nitrogen injection allows production to continue , Equipment can be saved, with obvious economic benefits.