摘要
突出煤层在采用钻孔施工消突过程中,经常出现喷孔现象,造成瓦斯超限,给安全生产带来极大的安全隐患。文章主要介绍了防止喷孔防护装置的原理、结构及其在现场中的实际应用效果。
The outburst coal seam usually appears to the spray holes phenomenon in the process of eliminating outburst by drilling holes construction. The result is gas ovemm. The safety production hidden troulde is brought. In the artice, the principle and construction of prevention spray holes equipment are introduced. The actual effect is also introduced.
出处
《煤炭技术》
CAS
2007年第5期82-83,共2页
Coal Technology
关键词
打钻喷孔
防护装置
突出煤层
drilling and spraying holes
protecting equipment
outburst coal seam
