自燃煤矸石山爆炸的热力学模拟

通过对自燃煤矸石山内部烟气的平衡浓度(ψ)与温度(T)、压力比(p/pθ)、水－空比(α)之间关系的热力学模拟，得到了自燃煤矸石山发生爆炸的热力学条件.当α=100，p/pθ=100，T=800~1200K时，煤矸石燃烧烟气中CO,CO2,H2,CH4和水蒸气的平衡浓度分别为：0.002~0.422,0.034~0.170,0.049~0.126,0.005~0.355和0.004~0.904，CO,H2,CH4爆炸性气体可发生化学爆炸.当α=100，p/pθ=100，T=1200~1800K时，煤矸石燃烧烟气中CO,CO2,H2,CH4和水蒸气的平衡浓度分别为：3.8×10-5~0.002,0.004~0.034,0.003~0.055,0~0.005和0.904~0.993，“烟气”中主要是高温高压水蒸气，可发生物理爆炸.