钻探工程2024，Vol.51Issue(z1)：112-116,5.DOI:10.12143/j.ztgc.2024.S1.016
离子型稀土开采过程中导流井井周矿体颗粒脱落运移临界流速研究
Study on the critical flow rate of diversion well in the mining process of ionic rare earth
摘要
Abstract
Ionic rare earth ore is a unique mineral resource in China and rare in the world.It dominates the global supply of medium and heavy rare earth,and has the characteristics of complete distribution,many high-tech application elements and great comprehensive utilization value.However,in the process of ionic rare earth mining,the well wall is prone to collapse,resulting in slope instability.This paper analyzed the calculation model of the critical velocity of the migration volume of the ore body particles under different influence factors.The results show that the critical flow rate of the ore particles increases with the particle radius,arrangement angle and friction coefficient.Electrostatic power is affected by the concentration of immersion liquid,but it has little influence on the migration of ore body particles.In addition,the viscosity of the solution can significantly reduce the critical flow rate.This study can provide theoretical and technical support for the safty and efficient development of ionic rare earth.关键词
离子型稀土矿/井壁坍塌/矿体颗粒/脱落运移/临界流速Key words
ionic rare earth ore/wall collapse/ore body particles/shedding and migration/critical flow rate分类
矿业与冶金引用本文复制引用
周扬,潘栋彬,曾云霜..离子型稀土开采过程中导流井井周矿体颗粒脱落运移临界流速研究[J].钻探工程,2024,51(z1):112-116,5.基金项目
江西省自然科学基金"离子型稀土矿体浸矿过程中侵蚀孔洞形成与演化规律研究"(编号:20224BAB213044) （编号:20224BAB213044）
战略金属矿产资源低碳加工与利用江西省重点实验室项目(编号:2023SSY01041) （编号:2023SSY01041）
