大通径三棱螺旋钻杆在芦岭矿的应用研究  

Research on Application of Large Diameter Triangular Spiral Drill Stem in Luling Coal Mine

作　　者：李坤[1] 凌标灿[1] 

机构地区：[1]华北科技学院,北京101601

出　　处：《煤炭技术》2016年第11期256-257,共2页Coal Technology

基　　金：中央高校基本科研业务费资助项目(3142015063)

摘　　要：由于淮北矿业集团芦岭矿地质构造复杂,煤层松软,导致在抽采钻孔钻进过程中钻孔易坍塌、排渣效果不理想、抽采率低等一系列问题。大通径三棱螺旋钻杆是在传统三棱钻杆的基础上增加了螺旋条带,螺旋条带可以形成足够大的流体排渣通道,具有实施流体与机械协同排渣功能,其排渣效果更好,钻进效率更高。As complex geological structure and soft seam in Huaibei Mining Group Luling coal mine, resulting in borehole drilling drilling process is easy to collapse, slagging effect is not ideal, low gas suction rate and other issues. Large diameter triangular spiral drill stem is based on the traditional triangular drill stem on the increase in the spiral bands, spiral strips can form a large enough fluid slag channel, with the implementation of collaborative slagging fluid and mechanical functions, getting the better slagging effect and higher drilling efficiency.

关 键 词：坍塌 螺旋条带 协同排渣 

分 类 号：TD421.25[矿业工程—矿山机电]