Simulation Analysis of Electric and Thermal Field of 15 kA Rare Earth Electrolytic Cell with Auxiliary Heat
Small and medium-sized rare earth electrolytic cell in commercially available have shortcomings such as low ef-ficiency,easy condensation of the metal at the bottom,and small output.Taking 15 kA rare-earth electrolytic cell as the re-search object,first investigate whether the external thermal device can improve the current density distribution and tempera-ture,and then investigate the effects of external thermal position and temperature on the electric and thermal fields of the elec-trolytic cell,establish a three-dimensional simulation model of the electric and thermal fields of the electrolytic cell before and after the external thermal,and observe the distribution of the electric and thermal fields.The results show that the laying of external thermal device on the outside of the electrolytic cell can effectively improve the current density distribution,and the maximum current density at the bottom of the cathode can be effectively increased,meanwhile,the temperature inside the cell can be increased,and the high temperature area can be increased,which is conducive to the efficient and continuous electroly-sis reaction.When the external thermal device is laid in the lower part of the electrolytic cell and the external thermal tempera-ture is set at 1310 K,the current density between the cathode and anode is maximum and uniformly distributed,which is con-ducive to the enhancement of the electrolysis efficiency;meanwhile,the crucible at the bottom maintains a higher tempera-ture,which reduces the rare-earth metal condensation and deposition in the crucible.
rare earth electrolytic cellauxiliary heat devicefinite element analysiselectric fieldthermal field
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