基于电接触模型的锌电积用阳极电场分布仿真计算

Simulating Calculation of Electric Field Distribution of Anode in Zinc Electrowinning Based on Electric Contact Model

基于ANSYS 12.0软件对锌电积过程中阳极电流密度分布情况进行了模拟,并将一次电场分布模型改进为考虑电化学反应的二次电场分布模型。研究结果表明,与一次电场分布模型计算结果对比,优化后的电接触模型计算结果能更精准反映锌电积过程中阳极电流密度的实际分布情况,阳极内部电流密度由非线性下降变为以恒定梯度下降,阳极电压降由0.015 V变为0.034 V。该模型的引入可以更好地通过模拟计算指导实际生产。

The distribution of anodic current density during the zinc electrowinning process was simulated with ANSYS 12.0,and the primary electric field distribution model was improved to a secondary electric field distribution model with electrochemical reactions taken into consideration.The results show that compared to the primary electric field distribution model,the optimized electrical contact model can accurately reflect the actual distribution of the anodic current density in the zinc electrowinning process based on the calculation.The anodic current density changes from a nonlinear drop to a constant gradient drop,with the anode voltage drop changing from 0.015 V to 0.034 V.It is concluded that simulating calculation based on the utilization of this model can be helpful for the practical production.