综掘工作面煤壁浅孔注水粉尘治理研究与实践

Study and Practice on Dust Control in Shallow-hole Water Injection on Coal Wall at Fully Mechanized excavation Face

为有效降低E1S725-1#矸石置换巷道掘进工作面粉尘污染问题,依据该工作面的实际情况,设计了注水钻孔布置方案、钻孔参数以及钻孔封孔方法等整套注水工艺,认真组织实施后,该种煤层注水方法使工作面煤体中水分含量提高了1%以上,粉尘降尘效率达到49%以上,有效地降低了工作面粉尘浓度。

To effectively reduce the dust pollution at excavation face of E1S725-1#gangue replacement roadway,the authors design and implement the full set of water injection technique including the layout and parameter of drilling holes and the hole drilling and sealing methods,which has increased the water content in coal body by 1%and reduced the dust density with dust suppression efficiency of 49%.