综采工作面深孔注水防治煤尘技术的应用

Coal Science and Technology(2010)

Cited 23|Views10
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Abstract
对煤层深孔注水降尘机理进行了研究,并结合张集煤矿的煤层开采条件,对煤层注水技术及工艺进行了介绍,确定了钻孔布置、封孔深度、注水压力、注水量与注水时间等工艺参数。研究结果表明:综采工作面深孔注水是防治煤尘的有效手段,合理的钻孔深度7m,封孔深度2m,注水压力0.5~9.0MPa,注水后湿润半径为1.0~2.5m,平均降尘率达46.8%。
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Key words
water injection with deep borehole,water injection technique,dust control
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