高瓦斯工作面安全封闭火区技术探讨

Discussion on Technology for Safely Sealing Fire Area in Gassy Working Face

封闭火区是矿井火灾事故处理中常用的措施之一,但在火区封闭过程中往往会发生瓦斯爆炸事故,造成人员伤亡和火区范围的扩大。通过分析火区发生的不同位置,确定封闭火区形式、选取封闭过程的稳定通风系统、采取建造调压气室和注氮等安全技术措施,达到控制封闭过程中瓦斯爆炸和快速灭火的目的。

To seal the fire area is one of the commonly-used measures for mine fire control, but the gas explosion may occur during fire-area sealing, which will result in casualties and the expansion of the fire area. By analyzing the different positions of the area where the fire occurred, determining the form of fire-area sealing and taking some safety measures such as selecting a stable ventilation system during sealing process, building a pressure balance chamber and injecting nitrogen, the purpose of controlling gas explosion and rapidly extinguishing fire during fire-area sealing was thus achieved.