华胜煤矿3203采煤工作面防尘技术应用

Application of Dust Control Technology in the 3203 Coal Face of Huasheng Coal Mine

为了降低综采工作面粉尘浓度,认真分析采煤工作面粉尘运移规律,提出了采煤机内外喷雾、架间喷雾、转载点喷雾、回风顺槽水幕帘喷雾的综合防尘技术措施。现场应用表明,综合防尘措施实施后,在采煤机司机处对全尘和呼尘的除尘率分别为87.4%和87.5%,在回风顺槽第二道水幕帘后2 m处的除尘率分别为87.7%和88.6%,改善了工作面作业环境,保障了工人身心健康。

In order to reduce the dust concentration in fully mechanized mining face and carefully analyze the movement law of coal flour dust,this paper puts forward the comprehensive dust control technical measures of shearer internal and external spray,inter-frame spray,transfer point spray and return air trough water curtain spray.The field application shows that after the implementation of the comprehensive dust control measures,the dust removal rates of total dust and exhaled dust at the shearer driver are 87.4% and 87.5% respectively,and the dust removal rates at 2 m behind the second water curtain in the return air trough are 87.7% and 88.6% respectively,which improves the working environment of the working face and ensures the physical and mental health of the workers.