摘要
稀土氟化物熔盐电解技术从20世纪80年代开始逐步工业化应用,经过几十年的发展,单槽规模从3 kA级逐步发展到目前的8 kA甚至15 kA级,电流效率也从原来的不足70%提高到接近80%。但是稀土熔盐电解操作的机械化、自动化水平没有大的提高。为了探索大型电解槽自动出金属的实施途径,包头瑞鑫稀土金属材料有限公司设计运行了10 kA级单阴极圆形电解槽。该电解槽首次选用了Ф120 mm大尺寸钨阴极,经过运行得到的各项工艺技术指标良好。本文针对此电解槽,在初步设计方案基础上利用MATLAB软件编制的稀土电解槽电场数值模型,模拟计算了电解槽炉膛内导电区域的三维电场分布。通过计算结果,分析了电解槽炉膛内各部位的电位关系,为下一步稀土电解槽的技术改进和工艺研究提供理论参考和帮助。
Rare earth fluoride molten salt electrolysis technology has been gradually industrialized since 1980 s.After the development in decades,the cell scale has gradually developed from 3 kA to the current level of 8 kA or even 15 kA.The current efficiency has also increased from less than 70%to nearly 80%.However,the level of mechanization and automation of rare earth molten salt electrolysis has not been greatly improved.Baotou Rewin Rare Earth Metal Material Co.,Ltd.designed and operated 10 kA electrolyzer with single cathode in order to explore the implementation way of automatic metal production in big electrolytic cell.For the first time,large size tungsten cathode with diameterФ120 mm was used in the electrolytic cell.In the paper,the three-dimensional electric field distribution of the electrolytic cell is simulated and calculated by using the MATLAB software.Through the calculation results,the potential relationship of each part in the electrolytic cell is analyzed,which will provide a theoretical reference and help for the technical improvement and technological research of the rare earth electrolytic cell in the future.
作者
廉华
任永红
郭海涛
潘燚
刘雨
杨培绿
侯磊
郝志琴
薛琪
刘兴志
孙致杰
刘文晶
LIAN Hua;REN Yong-hong;GUO Hai-tao;PAN Yi;LIU Yu;YANG Pei-lü;HOU Lei;HAO Zhi-qin;XUE Qi;LIU Xing-zhi;SUN Zhi-jie;LIU Wen-jing(Baotou Rewin Rare Earth Metal Materials Co.,Ltd.,Baotou 014030,China;Inner Mongolia Efficient Metallurgical Sci-tech Co.,Ltd.,Baotou 014010,China)
出处
《稀土》
CAS
CSCD
北大核心
2021年第6期100-113,共14页
Chinese Rare Earths
关键词
稀土
镨钕金属
电解
电解槽
电场
数值模拟
rare earths
Pr-Nd metal
electrolysis
electrolytic cell
electric field
numerical simulation
