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矿山井下通常存有坑木、皮带输送机及电缆等可燃物,而且井下经常有大量的通风,所以,当火灾发生时就有可能导致大范围的燃烧。另外,由于热气流和火灾有害气体的流动,很可能发生重大火灾。为防止这种巷道火灾,西德、英国等煤矿使巷道内大面积惰性化。我国(日本)矿山使用的支护材料中有大量的坑木。为此,对巷道火灾的预防必须要有阻止火灾扩大使灾害限制在最小限度的防延措施,以及预测火灾时的通风变化使井下人员安全回避的控制通风的措施。要想实施这些对策,最重要的是要充分理解巷道火灾的性状,以及积累有关延烧特性的各种数据。
There are usually combustibles such as pit wood, belt conveyors and cables in the mine shaft, and there is often a lot of ventilation in the underground so that it may cause a wide range of combustion in the event of a fire. In addition, a significant fire hazard is likely to occur due to the flow of hot air and fire and harmful gases. In order to prevent such roadway fires, West Germany, the United Kingdom and other coal mines to make a large area of inertia. China (Japan) mine supporting materials used in a large number of pit. To this end, the prevention of roadway fire must have measures to prevent the expansion of fire to limit the disaster to a minimum, and to control the ventilation of the miners safely avoiding the ventilation changes during the fire. The most important thing to do to implement these measures is to fully understand the characteristics of roadway fires and to accumulate various data on the characteristics of the fire.