干冰灭火技术在二景煤矿的应用

Application of Dry Ice Fire-extinguishing Technology in Erjing Coal Mine

为了治理二景煤矿15106采空区发生的自燃火灾,依据自热潜伏期煤层自燃的特点,在分析15106采空区遗煤自然发火原因的基础上,采用干冰灭火技术,使15106采空区快速充满流动的二氧化碳,对尚不确定具体位置的采空区高温点起到降温阻燃作用。结果表明:干冰灭火技术能快速处理在自热潜伏期时不明范围的采空区煤体自燃问题。

In order to control the spontaneous combustion in 15106 goaf of Erjing Coal Mine, according to the characteristics of coal seam spontaneous combustion in the self-heating latency, on the basis of analyzing the cause of coal spontaneous combustion in 15106 goaf, the dry ice fire-extinguishing technology was used to make the 15106 goaf quickly filled with flowing carbon dioxide, which has the cooling and inflaming retarding effect to the unkown high temperature point in the goaf. The results show that the dry ice fire-extinguishing technology can quickly deal with the spontaneous combustion of coal in the goaf in the unknown self-heating latency period.