淄矿集团老区由于开采时间长 ,矿井不断延深 ,通风系统日趋复杂 ,深部瓦斯含量高 ,地温高 (3个矿属高瓦斯矿井 ,4个矿井有高瓦斯区 ) ,加上原有巷道断面小 ,通风阻力大 ,部分矿井风机老化 ,致使矿井通风日趋困难 ,为解决矿井通风系统存在的问题 ,开展了“利用危险源辨识与控制 The old area of ​​Zibo Mining Group has long time of mining, continuous deepening of mine, increasingly complicated ventilation system, high gas content in deep area, high ground temperature (three high-gas mines and four high-gas mines) and a small original cross-section , Ventilation resistance, some mine fans aging, resulting in mine ventilation increasingly difficult, in order to solve the problems of mine ventilation system, launched the "use of hazard identification and control