The main factors of multi-component mine gas explosion in the mine fire area are analyzed.These factors influence on multi-component mine gas explosion are also analyzed.Several methods of controlling combustible gas explosion are pointed out.These methods can be used in the mine fire area,especially the confined and unseal process of the big mine fire area.As the comprehensive judgement of the flammable mixture gas explosion hazard and establishment of explosion-proof measures,these methods have practical value and significance.

This essay presents an engineering calculation method for the explosion triangle parameters of gas mixtures in which multiple flammable gases co-exist. Therefore, this method is applicable to the fire districts of mines, especially to the sealing and opening processes of large-area fire districts of mines. It provides both practical value and guidance for the comprehensive determination of the explosion risk of flammable gas mixtures and the formulation of explosion prevention measures.

在矿井通风中,主扇以固定的最大的容量运行时,将会导致能量的巨大浪费,本文试图提出一些方法来减少主通风机(主扇)的能量消耗,使主通风机高效运行,提高通风系统的稳定性、安全性、经济性.