贯通式气动潜孔锤反循环连续取样钻头的改进与优化  

Improvement and optimization of DTH air hammer reverse circulation continuous sampling bit

作　　者：李彬[1] 王茂森[1] 潘殿琦[2] 云希斌 

机构地区：[1]吉林大学建设工程学院,长春130026 [2]长春工程学院,长春130021 [3]白山市建筑工程勘察设计院,白山134300

出　　处：《长春工程学院学报（自然科学版）》2008年第1期66-68,共3页Journal of Changchun Institute of Technology：Natural Sciences Edition

摘　　要：针对栾川钼矿复杂地层勘探中所遇到的反循环形成难和形成不彻底的状况,提出了贯通式反循环取样钻头的改进方案,并且进行了现场试验。试验表明,改进后的钻头具有反循环效率高,钻进速度快,岩矿心采取率达99%以上的特点。In terms of the difficulty and incompleteness of the DTH air hammer reverse circulation in the Luanchuan molybdenum mine multi-stratum exploration,this paper presents improved scheme of DTH reverse circulation coring bit structure and took experiments in the field,which indicates that improved bit possesses high efficiency on drilling and coring,and high rate of coring equally above 99%.

关 键 词：反循环取样钻头 贯通式潜孔锤 结构优化 

分 类 号：P634[天文地球—地质矿产勘探]