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几年来,人们已经特别注意到,不论是采煤机,还是巷道掘进机,其刀头变大和采掘机效率的提高使得截齿摩擦引燃瓦斯越来越频繁。作者从下面3个方面介绍摩擦引燃的新发展。一、避免可燃瓦斯的集聚除传统方法外(如抽放瓦断、监测风量和气体成分分析、避免工作面落煤的堆积),还可以利用采掘机切割区的通风方法。
In recent years, it has been specially noticed that both the coal shearer and the roadheading machine have larger cutter heads and increased mining machine efficiency, which makes the cutting teeth friction and burns gas more and more frequently. The author introduces the new development of friction ignition from the following three aspects. First, to avoid the accumulation of combustible gas In addition to the traditional methods (such as the extraction and disruption, monitoring of air flow and gas composition analysis, to avoid the accumulation of coal falling face), you can also use mining machine cutting area ventilation method.