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当进风井、井底车场、主要进风巷发生火灾时,大量的一氧化碳等有毒、有害气体将随风漫延,进入到各工作地点,危害工人的生命。为了防止火灾事故的扩大,确保矿井安全,为此《煤矿安全规程》规定:每个矿井每年要进行一次反风试验,并且必须在10分钟内改变风流方向,反风后主扇供给的风量不应小于正常风量的60％。以上规定是以矿井瓦斯涌出情况为依据的。现根据我矿反风时的观测资料,对抽出式通风的矿井反风时期矿井瓦斯涌出规律和风量的关系等问题作一浅析。
When the inlet shaft, bottom-hole yard, the main air intake Lane fire, a large amount of carbon monoxide and other toxic and harmful gases will spread with the wind, into the workplace, endangering the lives of workers. In order to prevent the fire accident from expanding to ensure mine safety, “Coal Mine Safety Code” provides: Each mine to conduct an anti-wind test every year, and must change the direction of the wind within 10 minutes, after the main wind fan wind supply does not Should be less than 60% of normal air flow. The above requirements are based on gas emission from mines. Based on the observation data of mine during anti-wind, this paper analyzes the relationship between the gas emission law and the air volume of mine during the anti-wind mine ventilation period.