本文已被:浏览 650次 下载 529次
投稿时间:2021-07-02 修订日期:2021-08-30
投稿时间:2021-07-02 修订日期:2021-08-30
中文摘要: 某地浸铀矿山注液钻孔流量出现“断崖式”下降,经过分析发现,钻孔过滤器附近溶液中含有大量的硅酸类物质,其化学性质稳定,除强碱、氢氟酸外不与任何物质发生反应,且会凝聚形成硅酸聚合物而堵塞钻孔。根据硅酸的物理化学特性,提出NaOH洗井工艺,向钻孔内注入NaOH溶液,其与硅酸反应生成可溶性的硅酸钠,达到解除钻孔堵塞的目的。试验和现场应用结果表明,NaOH洗井能有效改善钻孔硅酸堵塞问题,提高钻孔注液能力。
Abstract:Injection flow rate of an in-situ leaching uranium mine drops dramatically. The reason is that solution near the drilling filter contains a large number of silicate substances, its chemical properties is stable, it does not react with any substance except strong alkali and hydrofluoric acid, and will condense to form silicate polymer and block the drilling. According to physical and chemical characteristics of silicate, well washing with NaOH process was proposed. NaOH solution was injected into borehole and reacted with silicate to produce soluble sodium silicate, so as to solve the problem of drilling blockage. The test and field application results show that well washing with NaOH can effectively improve the problem of hole silicate blockage and improve drilling fluid capacity.
文章编号: 中图分类号: 文献标志码:
基金项目:国家国防科技工业局核能开发项目(科工计[2012]1523号);中核集团公司科技重大专项(中核科发[2012]181号)
作者 | 单位 | |
梁大业* | 中核内蒙古矿业有限公司 | 343156036@qq.com |
胡鹏飞 | 中核内蒙古矿业有限公司 | |
王晓伟 | 中核内蒙古矿业有限公司 | |
桂增杰 | 中核内蒙古矿业有限公司 | |
李光辉 | 中核内蒙古矿业有限公司 |
Author Name | Affiliation | |
LIANG Da-ye | CNNC,Inner Mongolia Mining Co. Ltd,Hohhot,Inner Mongolia 010010 China | 343156036@qq.com |
HU Peng-fei | ||
WANG Xiao-wei | ||
GUI Zeng-jie | ||
LI Guang-hui |
引用文本:
梁大业,胡鹏飞,王晓伟,桂增杰,李光辉.某地浸铀矿山NaOH洗井工艺探索与应用[J].有色金属(冶炼部分),2021(11):71-74.
LIANG Da-ye,HU Peng-fei,WANG Xiao-wei,GUI Zeng-jie,LI Guang-hui.Exploration and Application of Well Washing Technology with NaOH in an In-situ Leaching Uranium Mine[J].Nonferrous Metals (Extractive Metallurgy),2021(11):71-74.
梁大业,胡鹏飞,王晓伟,桂增杰,李光辉.某地浸铀矿山NaOH洗井工艺探索与应用[J].有色金属(冶炼部分),2021(11):71-74.
LIANG Da-ye,HU Peng-fei,WANG Xiao-wei,GUI Zeng-jie,LI Guang-hui.Exploration and Application of Well Washing Technology with NaOH in an In-situ Leaching Uranium Mine[J].Nonferrous Metals (Extractive Metallurgy),2021(11):71-74.