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借助大型有限元分析软件ANSYS,建立铝电解槽阳极热-应力模型,对铝电解槽阳极的热场、应力场进行了数值仿真研究;分析了磷生铁膨胀系数与阳极接触压降间的关系,通过优化出磷生铁的最佳膨胀系数,确定磷生铁的最优配方,降低阳极铁-碳压降,对电解槽节能具有重要意义。在青海黄河鑫业有限公司进行了工业试验,达到了降低阳极铁-碳压降16 mV的节能效果,与仿真计算结果一致。本模型可为确定磷生铁的配方,降低阳极铁-碳压降提供理论和试验依据。
With the aid of the large-scale finite element analysis software ANSYS, the heat-stress model of the anode of the aluminum reduction cell was established. The thermal and stress fields in the anode of the aluminum reduction cell were numerically simulated. The relationship between the expansion coefficient of phosphorus pig iron and the contact pressure drop of the anode was analyzed. Optimizing the optimal expansion coefficient of phosphorus pig iron to determine the optimum formulation of phosphorus pig iron and reduce the anode iron - carbon pressure drop is of great significance for saving energy in the electrolytic cell. In Qinghai Yellow River Xin Industry Co., Ltd. conducted an industrial test, to reduce the anode iron - carbon pressure drop 16mV energy saving effect, consistent with the simulation results. The model can provide the theoretical and experimental basis for determining the formula of phosphorus pig iron and reducing the anode iron-carbon pressure drop.