Electric Field Numerical Simulation and Cathode Structure Optimization of Rare Earth Electrolysis Cell [稀土电解槽电场仿真与阴极结构优化] - Details

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Abstract：

In　order　to　study　the　effect　of　the　cathode　rods　corrosion　and　the　installed　cathode　rods　sleeve　on　the　electric　field　distribution,　and　the　effect　of　new　electrode　structure　on　the　electric　field　distribution,　a　traditional　rare　earth　electrolysis　cell　3-D　model　was　established　by　ANSYS.　After　the　cathode　rod　was　corroded,　the　current　was　concentrated　in　the　corrosion　area,　where　current　density　is　up　to　2.4×106　A•m-2,　a　lot　of　Joule　heat　was　generated　and　cathode　corrosion　was　accelerated.　In　addition,　the　cell　voltage　of　the　external　cathode　protection　sleeve　increased　by　90　mV　and　the　embedded　cathode　protection　sleeve　increased　by　150　mV　as　a　result　of　the　cathode　protection　sleeve　is　installed　in　different　ways.　The　results　showed　that　the　electric　field　distribution　of　the　bottom　hemispherical　cathode　electrolysis　cell　is　more　even,　which　avoids　local　overheating　of　the　electrolysis　cell,　and　is　beneficial　to　increase　the　current　efficiency　and　service　life　of　rare　earth　electrolysis　cell.　©　2020,　Editorial　Office　of　Journal　of　the　Chinese　Society　of　Rare　Earths.　All　right　reserved.

Keyword：

Cathode; Electric filed; Electrolysis cell; Finite element; Rare earths

Community：

[ 1 ] [Zhang, H.]Xiamen Zijin Mining and Metallurgical Technology Co., Ltd., Xiamen, 361102, China
[ 2 ] [Lü, X.]School of Metallurgy and Environment, Central South University, Changsha, 410083, China
[ 3 ] [Zhong, S.]Xiamen Zijin Mining and Metallurgical Technology Co., Ltd., Xiamen, 361102, China
[ 4 ] [Zhong, S.]Zijin Mining College, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Wang, J.]Xiamen Zijin Mining and Metallurgical Technology Co., Ltd., Xiamen, 361102, China
[ 6 ] [Wang, J.]Zijin Mining College, Fuzhou University, Fuzhou, 350108, China
[ 7 ] [Chen, H.]Xiamen Zijin Mining and Metallurgical Technology Co., Ltd., Xiamen, 361102, China
[ 8 ] [Liu, S.]School of Metallurgy and Environment, Central South University, Changsha, 410083, China
[ 9 ] [Zeng, X.]School of Metallurgy and Environment, Central South University, Changsha, 410083, China
[ 10 ] [Jian, Y.]Inner Mongolia Jinzhong Mining Co., Ltd., Jinzhong, 011300, China

Reprint 's Address：

[Lü, X.]School of Metallurgy and Environment, Central South UniversityChina

Email：

lvxiaojun@csu.edu.cn

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Source ：

Journal of the Chinese Rare Earth Society

ISSN： 1000-4343

Year： 2020

Issue： 5

Volume： 38

Page： 667-676

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SCOPUS Cited Count： 2

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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