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我矿系超级瓦斯矿井,瓦斯涌出量10～16米~3/分,吨当量32～45米~3/吨。回采瓦斯占全井瓦斯量的55～70%,其中采空侧涌出的约占80%。这部分瓦斯的主要出口在上隅角,所以,回采空间瓦斯含量一般只有0.1～0.3%,而回风流瓦斯则往往发生超限,影响正常生产,威胁矿井安全生产。实践要求我们深化对回采瓦斯涌出及其在回风流中超限显现的认识,在防治上要提高自觉性,增强主动性,讲究科学管理。1976年,
I mine super gas mine, gas emission 10 ~ 16 m ~ 3 / min, ton equivalent of 32 ~ 45 m ~ 3 / t. Recovered gas accounts for 55-70% of the total well gas volume, of which about 80% of the gob gas emission. The main outlet of this part of gas is in the upper corner. Therefore, the gas content in the recovery space is generally only 0.1-0.3%, while the return air flow gas often exceeds the limit, affecting normal production and threatening mine safety production. Practice requires that we deepen our understanding of gas emission from mining and its emergence in the return air flow. We should enhance our consciousness in prevention and control, enhance our initiative and pay attention to scientific management. In 1976,