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Numerical Simulation Research for Electric Field and Flow Field of 10KA Rare Earth Electrolysis Cell

Author: ZhangZuoLiang
Tutor: WangJun
School: Inner Mongolia University of Science and Technology
Course: Iron and steel metallurgy
Keywords: Rare earths Electrolyzer Electric field Flow field Numerical Simulation
CLC: TF845
Type: Master's thesis
Year: 2010
Downloads: 94
Quote: 2
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Abstract


The paper on the basis of summing up the results of previous studies , the bottom of the design of a cathode structure of rare earth electrolyzer to overcome on pluggable overcast, the disadvantages of anode rare earth electrolytic cell and the electric field in the slot with the numerical simulation method and flow field study , the improvement of production efficiency and the current efficiency of the rare earth electrolysis , in order to adapt to large-scale industrial production . First, using ANSYS software simulation of the bottom of the receiver and receiver both the bottom of the cathode structure electrolytic cell , the two Groove pole pitch to 0.1m , 0.12m and 0.14m when the electric field potential and electric field intensity distribution , research the results showed that : ( 1) the distribution of the electric field is uniform , component mixing and thermal conduction between the electrodes , so that is conducive to ensure electrolytic desired temperature ; ( 2 ) the electrode spacing of 0.14m , the theoretical cell voltage when the receiver maximum 5.41V, also when the receiver maximum of 5.52V . And the 10KA plug - yin , compared to the anode structure electrolyzer cell voltage of 10V , the cathode structure at the bottom of the electrolytic cell has a greater energy saving space . Secondly , the use of commercial CFD software FLUENT simulation flow field distribution calculated both Groove , simultaneous analysis of the anode electrode distance changes in the flow field , the results show that : (1 ) anode end of the palm of gas movement in Yin , between the disturbance of the electrolyte is very small, which is conducive to the cathode surface of the precipitated metal collection , to reduce the secondary metal oxide ; ( 2 ) the anode sidewall and the groove wall of the electrolyte circulation will accelerate the dissolution of the neodymium oxide , neodymium oxide dissolved will be taken to overcast , involved in the reaction between the anode and the production process to work . From the rational use of the electrolytic cell and electrolytic efficiency analysis, the pole pitch 0.12m bottom of the receiver cathode cell is an ideal .

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CLC: > Industrial Technology > Metallurgical Industry > Nonferrous metal smelting > Rare metal smelting > Rare earth metal smelting
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