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本文介绍了孔庄矿7177工作面高档普采放顶煤采取综合防尘措施的情况。在采取煤层注水、采煤机内外喷雾和架间喷雾等防尘措施后，工作面粉尘浓度由434mg／m3降到了44．5mg／m3，取得了较好的防尘效果。
This paper introduces the situation of adopting comprehensive dust control measures for top grade general mining caving coal in 7177 face of Kongzhuang Mine. After adopting coal seam water injection, coal dusting inside and outside and frame dusting measures, the dust concentration in the working face was reduced from 434mg / m3 to 44.5mg / m3, and the dustproof effect was achieved.