高能液动锤超硬岩快速钻进成套装备与技术  

Equipments and Technology of High Energy Hydraulic Hammer Fast Drilling in Ultra Hard Rock

作　　者：张俞 Zhang Yu(Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400039,China;State Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400039 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037

出　　处：《煤矿机械》2024年第1期116-118,共3页Coal Mine Machinery

基　　金：中煤科工集团重庆研究院自立科研项目(2017ZDXM11,2022YBXM59);天地科技创新创业资金专项项目(2019-TD-MS018)。

摘　　要：当煤矿井下瓦斯抽放孔钻孔施工中遇到f≥12的岩层时,采用PDC钻头的回转切削效率极低。为解决煤矿井下硬岩钻进的技术难题,提出了煤矿井下高能液动锤的成套配置方案。采用该技术方案开展了井下钻孔试验。试验结果表明,在石英砂岩(10≤f≤12)中,机械钻速18.63~32.84 m/h;在硅质泥岩(12≤f≤17)中,平均机械钻速21.91 m/h。为煤矿井下硬岩钻进提供了一种新技术,可提高煤矿硬岩钻进效率。When drilling gas drainage holes in underground coal mine in rock formations with a rock hardness f≥12,the rotary cutting efficiency of using PDC drill bits is extremely low.To solve the technical difficulties of hard rock drilling in underground coal mine,proposed a complete configuration scheme of high-energy hydraulic hammer in underground coal mines.Drilling experiments were conducted using this technical scheme in underground coal mine.The experimental results show that in quartz sandstone(10≤f≤12),the mechanical drilling speed is 18.63-32.84 m/h;in siliceous mudstone(12≤f≤17),with an average mechanical drilling speed is 21.91 m/h.It provides a new technology for hard rock drilling in underground coal mine,which can improve the efficiency of hard rock drilling in coal mine.

关 键 词：瓦斯抽放孔 硬岩钻进 高能液动锤 冲击碎岩 

分 类 号：TD421.2[矿业工程—矿山机电]