In order to study the mechanism of second-fire induced by methane explosions, the yields of several main fuels in mine were studied through doing some fast pyrolysis experiments. Use courier point fast pyrolysis system and GC to do this experiment. All experiment conditions fulfill methane explosions environment thoroughly. The experiment results show that the yields mainly include CH4, C2H4, C2H6, C3H6, C3H8, C4, C5, CO, CO2 etc. Where, CH4, C2H4, C3H6, C4, C5, CO, CO2 yields are larger than others. Only supporting wood has H2, and only PVC has HC1 but others. And include some dangerous flammable gas such as CH4, CO, H2 etc. The model and influence factors show that temperature and heating rate have great influence on yields but pressure, especially temperature. All results show that methane explosions could produce some flammable gas which out of fuel, and could induce second fire.
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机译：为了研究由甲烷爆炸诱导的二次火灾机制，通过进行一些快速热解实验，研究了矿井中几种主要燃料的产量。使用快递点快速热解系统和GC进行此实验。所有实验条件均彻底满足甲烷爆炸环境。实验结果表明，产率主要包括CH4，C2H4，C2H6，C3H6，C3H8，C4，C5，CO，CO 2等。在其中，CH 4，C 2 H 4，C 3 H 6，C4，C5，CO，CO 2产率大于其他产率。只有支持木材都有H2，只有PVC具有HC1，而且其他。包括一些危险的易燃气体，如CH4，CO，H2等。模型和影响因素表明，温度和加热速率对产率有很大影响，但压力，尤其是温度。所有结果表明，甲烷爆炸可能会产生一些易燃气体，燃料外，可以诱导二次火灾。
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