EGR便携式全液压钻机在萤石矿勘查中的应用与分析
张雄,张耀澎,牛恩宁,华伶利,吕新全

Application of EGR Portable Full Hydraulic Drill in Fluorite Mine Exploration
Xiong ZHANG,Yaopeng ZHANG,Enning NIU,Lingli HUA,Xinquan LV
表4 钻进技术参数范围
Table 4 Range of drilling technical parameters
钻头规格钻压/kN转速/(r·min-1冲洗液量/(L·min-1
?11015.0~20.0200~30080~100
HTW8.0~15.0350~70040~65
NTW6.0~11.0500~85030~45
BTW4.5~8.5600~1 20025~30