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煤层注水是从源头减少综采工作面煤尘的治本性措施,然而一些低透气性、难湿润高产尘的工作面普通注水效果不明显,以32031综采工作面为背景结合以往注水试验效果,采用动静压间隔式混合注水方式。
Coal seam water injection is a natural measure to reduce the coal dust in the fully mechanized mining face from the source. However, some common water injection effects are not obvious for some face with low gas permeability and difficult to wet and high dust production. Combined with the past filling test results, The use of static and dynamic pressure interval water injection mode.