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在矿井内发生火灾后,由于火势猛烈或者燃烧的区域较大而不能用积极的方法予以扑灭时,则必须构筑防火墙,隔绝火区,甚至用封闭矿井的方法来阻止新鲜空气的供给,限制火势的发展,以达灭火的目的。当矿井因火灾而封闭或者是火灾被隔绝并限制在一个工作区内之后,为了掌握火灾的变化情况,准确的判断火灾是否熄灭,则必须进行系统的观测工作。到目前为止,在我国矿山上采用的观测火区的方法。大多是依靠对火区内气体成份分析为
In the mine after the fire, due to intense fire or burning area is larger and can not be extinguished with a positive method, you must construct a firewall, isolated fire area, or even closed the mine to prevent the supply of fresh air to limit the fire The development of fire in order to achieve the purpose. When the mine is closed due to fire or the fire is isolated and confined in a work area, systematic observation must be conducted in order to grasp the change of the fire and judge exactly whether the fire is extinguished. So far, the methods of observing the fire area adopted in our country's mines. Mostly rely on the analysis of gas composition of the fire zone