斜沟煤矿煤层脉动注水降尘技术研究  

Research on Dust Control Technology of Pulsating Water Injection in Coal Seam of Xiegou Coal Mine

作　　者：张仲坤 ZHANG Zhong-kun(Xiegou Coal Mine of Shanxi Xishan Jinxing Energy Co.,Ltd.,Lliang 033602,China)

机构地区：[1]山西西山晋兴能源有限责任公司斜沟煤矿,山西吕梁033602

出　　处：《煤》2020年第11期7-10,33,共5页Coal

基　　金：国家自然科学基金资助项目(51074161)。

摘　　要：针对采煤工作面开采时因粉尘防治不到位引起工作面作业条件差的难题,根据抑尘和降尘原理,以斜沟煤矿13号煤层23114工作面为研究对象,系统分析了煤层结构特点、注水孔周围裂缝裂隙的分布规律和脉动水流特征等,得出斜沟煤矿13号煤层具有良好的注水性。现场试验表明,脉动注水可很好地润湿煤体,显著超过静压注水,具有良好的降尘除尘效果。In view of the difficult problem that the poor working conditions of coal face are caused by the lack of dust prevention and control,according to the principles of dust suppression and dust fall,the working face 23114 of the No.13 Coal Seam in Xiegou Coal Mine is taken as the research object,based on the analysis of coal seam structure,the Distribution Law of cracks around water injection hole and the characteristics of pulsating water flow,it is concluded that coal seam the No.13 in Xiegou Coal Mine has good water injection property.The field test shows that the pulsating water injection can moisten the coal well,which is much better than the static pressure water injection and has a good dust removal effect.

关 键 词：脉动注水 原生裂隙 割理 降尘 

分 类 号：TD714.4[矿业工程—矿井通风与安全]