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在高沼气矿井中开采特厚易燃煤层,回采工作面的供风量稳定与否及风量的大小,对防止工作面的自然发火和防治瓦斯影响极大。现就我矿3111工作面供风量变化无常所造成的后果作以简单的叙述和粗浅的分析,从而认识到风量多变的危害,并从这一事例中吸取教训。一、煤炭自燃的特点煤炭只所以能自燃是因为煤炭能在常温下与空气中的氧发生氧化作用而产生热量,如果产生的热量不能很好的散发并继续集聚,使煤体温度升高,当达到煤的着火温度时,就引起煤炭的自然发火。电就是说只所以煤炭能自燃其根本原因是煤炭与空气中的
It is very important to prevent the spontaneous combustion of the working face and prevent the methane from being affected by the stability of the supply air volume and the air volume in the high-methane gas mine. I now mine 3111 face changes in supply and demand of wind caused by the consequences of a simple narrative and superficial analysis, in order to recognize the dangers of changing air volume, and learn from this example. First, the characteristics of spontaneous combustion of coal Spontaneous combustion only because coal at room temperature and the oxygen in the air oxidation occurs and generate heat, if the heat generated can not be well distributed and continue to gather, so that coal temperature, When the coal’s ignition temperature is reached, it causes natural ignition of the coal. Electricity means that only coal can spontaneously ignite the root cause of coal and air