煤矿瓦斯爆炸发展规律及防治的综述及展望

Review on development and prevention of coal mine gas explosion

针对瓦斯爆炸事故在矿井开采中的危害及防治,从爆炸发展规律和爆炸防治两大方面对国内外瓦斯爆炸研究状况进行了综合评述。国内外学者通过理论法、实验法、数值模拟法对瓦斯爆炸进行研究,瓦斯爆炸发展规律方面的研究涉及到瓦斯爆炸的机理、瓦斯组分及浓度对爆炸发展规律的影响、爆炸发生的条件及危害、爆炸过程中的燃烧阶段变化及流体流动状态变化、爆炸特征参量随阶段变化的规律等。瓦斯爆炸防治方面的研究涉及到四种防治方法,分别是抑爆、阻爆、泄爆、隔爆,四种方法的研究内容有交叉重合部分且每种方法都有其优势和不足,不同方法组合的耦合效果优于其单独作用。最后,对瓦斯爆炸相关领域的未来研究进行了展望。

This paper comprehensively reviews the theoretical,experimental,and numerical studies on the prevention and control of gas explosions.The research topics include the mechanism of gas explosion,the gas composition and concentration of explosion,the explosion condition and harm,the combustion phase change,and the fluid flow in the explosion.The prevention and control methods involve explosion suppression,explosion resistance,explosion relief,and explosion isolation.The four methods have overlapping parts,and each method has its merits and limitations.The coupling of different methods is better than the single method.Finally,the future research work is outlined.