期刊论文

中文

有色金属工程

2095-1744

2020

10

12

99-112

10.3969/j.issn.2095-1744.2020.12.015

51774187:国家自然科学基金 51804164:国家自然科学基金 2019JJ50498:湖南省自然科学基金 17A184:教育厅科学研究项目

本校为第一机构

为探究电渗法对铀尾矿砂排水效果及规律特性的影响,在不同电势梯度下对铀尾砂进行室内电渗模型试验.通过测量各梯度下电渗排水量、电势、电流、能耗、砂体沉降、含水率等数值,进一步分析电极腐蚀与电势梯度、电流的关系.结果 表明:电渗能有效降低铀尾砂含水率,一般情况下排水量满足随电势梯度的增大而增多,在设置的五组梯度中,E4(1.25 V/cm)梯度下排水量最大;试验中有效电势与电流在变化趋势上较一致,随着砂体含水率的降低,内部阻值增大,不同电势梯度下其内部形成的场强不同,高梯度下有效电势、电流先增加后持续降低,低梯度下变化幅度较小;电极腐蚀与电势梯度关系密切,设置组下最高梯度相比最低...

In order to explore the effect of electroosmosis on the drainage of uranium tailing sand and its regularity,laboratory electroosmosis model tests were carried out on uranium tailing sand under different potential gradients.By measuring the values of electric seepage discharge,electric potential,current,energy consumption,sand body settlement,water content and other values under each gradient,the relationship between electrode corrosion and potential gradient and current was further analyzed.The results show that electroosmosis can effectively reduce the water content of uranium tailings,and in...