煤矿安全2017，Vol.48Issue(7)：99-102,4.DOI:10.13347/j.cnki.mkaq.2017.07.026
松软煤层螺旋钻杆与压风复合排渣钻进技术装备
Spiral Drill Pipe and Composite Slag Discharge Drilling Technology and Equipment in Soft Coal Seam
摘要
Abstract
For the problems of drilling difficulties in soft coal seam,shallow hole depth and low hole formation rate,on the basis of extensive research of domestic related technology,we use soft coal drill rig and overall milling type outer spiral drill pipe to carry on composite slag discharge drilling by compounding air pressure.The complete drill rig integrated the drilling parameters monitoring,drilling hole dust removal and composite slag discharge.The coal field industrial test showed that the complete drill rig was reliable,greatly improved the drilling depth and hole-forming rate in soft coal seam.关键词
松软煤层/瓦斯抽采/钻机/螺旋钻杆/复合排渣钻进Key words
soft coal seam/gas drainage/drill rig/spiral drill pipe/composite slag discharge drilling分类
矿业与冶金引用本文复制引用
张宏钧,姚克,张幼振..松软煤层螺旋钻杆与压风复合排渣钻进技术装备[J].煤矿安全,2017,48(7):99-102,4.基金项目
国家自然科学基金资助项目(51275061) （51275061）
