【摘要】 建立了煤矿火灾封闭过程中瓦斯爆炸的数学模型,以鹤岗某矿"8.21"煤层自燃火灾诱发瓦斯爆炸事故为原型进行了验证,分析了正常通风条件和火区密闭过程中火区气体流场、温度场、压力场分布特征,以及煤层自燃火灾诱发瓦斯爆炸危险性和煤层自燃引爆瓦斯过程的特征。更多还原

【Abstract】 The mathematical model of gas explosion during coal mine fire sealing was set up,and was verified by the "8.21" gas explosion accident induced by coal bed spontaneous combustion in one coal mine of Hegang Branch.The gas flow field,temperature field and pressure field as normal ventilation and fire zone during fire sealing were analyzed.And then,the dangers and characters of gas explosion induced by coal bed spontaneous combustion were analyzed.更多还原