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由兰州煤矿设计研究院完成的靖远矿务局王家山一号井注氮防治火工程设计,通过中统公司的审批。这是该院在这一新领域的设计起步,亦为我系统正规设计矿井注氮防治火工程揭开了序幕。 随着综采放顶煤采煤法的迅速发展,其防治火技术已被提到显要地位,尤其是在急倾斜特厚煤层中,自然发火危险性要比自然发火倾向性类别相同的其它煤层大得多。常规的防治措施已不能满足要求。因此,该院在借鉴国外一些经验、总结国内几项试验的基础上,为采用综采放顶煤采煤法,开采急倾斜特厚易燃煤层的王家山一号井,设计了注氮防治火工程。
The Lanzhou Coal Mine Design and Research Institute completed Jingyuan Mine Bureau Wang Hill No. 1 injection of nitrogen prevention and control of fire engineering design, approved by the Central Company. This is the beginning of the design of the hospital in this new field. It also kicked off the formal design of mine nitrogen injection to prevent and control fire in our system. With the rapid development of fully mechanized top coal caving mining method, its fire prevention and control technology has been mentioned prominently, especially in the steeply-sloped and ultra-thick coal seam, other coal seam with natural fire hazard than the natural fire propensity class Much bigger. Conventional control measures can no longer meet the requirements. Therefore, on the basis of learning some experiences from abroad and summarizing several experiments in China, the institute designed the nitrogen injection of Wangjiashan No. 1 well to adopt fully mechanized top coal caving mining method and exploit the steeply inclined and extremely thick flammable coal seam Prevention and treatment of fire engineering.