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Founded in 1987， Bimonthly
Supervisor：Jiangxi University Of Science And Technology
Sponsored by：Jiangxi University Of Science And Technology
Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 14 Issue 5
Oct.  2023
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WEN Tanggen, ZHANG Bin, ZHANG Jiawei, LI Mingzhou, YANG Shaohua. Numerical simulation of multiphase flow in 6 kA neodymium electrolytic cell[J]. Nonferrous Metals Science and Engineering, 2023, 14(5): 706-715. DOI: 10.13264/j.cnki.ysjskx.2023.05.014
Citation: WEN Tanggen, ZHANG Bin, ZHANG Jiawei, LI Mingzhou, YANG Shaohua. Numerical simulation of multiphase flow in 6 kA neodymium electrolytic cell[J]. Nonferrous Metals Science and Engineering, 2023, 14(5): 706-715. DOI: 10.13264/j.cnki.ysjskx.2023.05.014
shu

Numerical simulation of multiphase flow in 6 kA neodymium electrolytic cell

  • 1.

    Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi ,China

  • 2.

    Ganzhou Chenguang Rare Earth New Material Co., Ltd., Ganzhou 341000, Jiangxi,China

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  • Received Date: June 28, 2022
  • Revised Date: September 09, 2022
  • Available Online: November 07, 2023
    Graphical Abstract
    • Abstract
  • The flow field of air bubbles and electrolytes in the rare earth electrolytic cells is of great significance to ion concentration distribution, temperature distribution and the dissolution of oxide particles, and determines the quantity of products. In this paper, a cylindrical neodymium electrolysis cell with an anodic current density of 6 kA was taken as the prototype, and two-dimensional and three-dimensional mathematical models were established, respectively. The ANSYS-FLUENT software was used to solve the models. The results show that the flow process at the anodal gap and outboard of the carbon anode not be simulated by the two-dimensional model, while the three-dimensional model can accurately reflect the flow characteristic in the actual electrolytic cell. A nonuniform polar distance geometric model was built based on the real rare earth electrolyzer and the flow process was also simulated. The results show that the main vortices between the cathode and anode deviate toward the cathode and the bottom of the electrolytic cell with the increase of polar distance. Although the change in velocity is tiny, differences in swirl intensity within the electrolyte will lead to the deviation of rare earth metals. the degree of which increases with the anode distance ratio. The penetration depth of the anode bubble flow decreases with increasing polar distance.
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    • References (23)
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