煤层注水除尘技术在长平煤矿综采工作面的应用

Application of coal seam water injection dust removal technology in fully mechanized face of Changping Mine

长平煤矿5302工作面煤尘具有爆炸危险性,严重威胁着矿井安全生产。本文采取了煤层注水除尘技术,煤尘风险得到有效控制,实现降尘率提高23.6%,综采工作面呼吸性粉尘浓度低于252 mg/m3、全尘浓度低于496 mg/m3,满足了矿井安全生产条件。

Coal dust in the 5302 working face of Changping Mine with explosive risk,seriously threatened the safety of mine production.In the original coal seam water injection dust removal technology,the coal dust risk was effectively controlled,and the dust reduction rate was increased by 23.6%.The respirable dust concentration of the fully mechanized mining face was less than 252 mg/m3 and the total dust concentration was less than 496 mg/m3,which met the safety of the mine.