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补连塔煤矿开采的22煤属I级易自燃煤层,22307工作面在回采过程中出现了不同程度的低氧现象,通过采取“U”型均压通风措施有效解决了低氧问题,保证了工作面的安全开采。介绍了工作面均压通风原理、均压系统构成及其使用过程中应注意的相关事项。
22 coal seam belongs to class I spontaneous combustion coal mining in BuLiTa Mine and 22307 working face shows different degrees of hypoxia during the process of mining. The hypoxia problem is effectively solved by adopting “U ” pressure equalization and ventilation measures, Ensure the safe mining face. The principle of pressure equalizing ventilation in work face, the composition of pressure equalization system and the related matters that should be noticed in its using process are introduced.