摘要
为了降低综掘工作面巷道内粉尘浓度,改善作业人员工作环境,在2208巷掘进工作面进行煤层注水,并对注水浸润半径、煤层注水前后的含水率变化情况以及注水前后的巷道内粉尘浓度分布情况进行分析。结果表明:对煤层进行注水后掘进工作面呼吸性粉尘、全尘降低率分别达到14.5%、21.9%,起到了较好降尘效果。
In order to reduce the dust concentration in the roadway and improve the working environment of the workers,coal seam water injection is carried out in the 2208 roadway driving face,and the variation of water content before and after injection and the distribution of dust concentration in roadway before and after injection are analyzed.The results show that the reduction rate of respiratory dust and total dust in tunneling face reached 14.5% and 21.9% respectively after water injection in coal seam,which played a better dust control effect.
作者
徐新华
Xu Xin-hua(Majiliang Mine,Shanxi Datong Coal Mine Group,Shanxi Datong 037001)
出处
《山东煤炭科技》
2020年第7期77-80,共4页
Shandong Coal Science and Technology
关键词
综掘煤巷
煤层注水
浸润半径
粉尘防治
fully mechanized coal roadway
water injection
infiltration radius
dust control
