基于铝电解槽阳极组电-热场分析的磷生铁结构尺寸优化  

Structural size optimization of cast iron based on electric-thermal field analysis of anode assembly in aluminum reduction cell

作　　者：王周鹏 邓胜祥 Wang Zhoupeng;Deng Shengxiang(Department of Energy and Power Engineering,School of Mechanical and Automotive Engineering,Shanghai University of Engineering and Science,Shanghai 201620,China;Institute of New Energy and New Energy Saving Technology,Shanghai University of Engineering and Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院能源与动力工程系,上海201620 [2]上海工程技术大学新能源与节能新技术研究所,上海201620

出　　处：《轻金属》2023年第1期32-36,共5页Light Metals

基　　金：国家重点研发计算项目资助(2018YFB0605902)。

摘　　要：本文基于ANSYS有限元软件建立某400 kA铝电解槽单阳极组电-热耦合模型,对比模拟值与实际测试值,电场模拟的误差约为2%,温度的分布在文献报道的范围内。模型准确性验证完成后,通过对磷生铁结构进行尺寸优化,考察磷生铁开槽的宽度、高度对阳极组电场和温度场的影响。结果表明,开槽宽度增大至70 mm,与未开槽的阳极压降相比,压降降低4.95 mV,降幅约为1.19%;开槽高度从90 mm增大至130 mm,阳极压降仅降低了1.62 mV。温度场整体的变化不大,位于中间炭碗的两钢爪头温度升高。当钢爪处磷生铁的外径和开槽的宽度保持一致,阳极压降最大降低了29.03 mV,降幅约为6.97%,温度的分布也更均匀。In this paper,an electric-thermal coupling model of a 400 kA aluminum reduction cell with a single anode assembly was established based on ANSYS finite element software.By comparing the simulated results with actual test results,the error of electric field simulation was about 2%,and the temperature distribution was within the range reported in literature.After verifying the accuracy of the model,the effect of the width and height of slots on electric field and temperature field of the anode assembly was investigated by optimizing the structure of cast iron.The results show that when the grooving width increased to 70 mm,the voltage drop decreased by 4.95 mV,and the decline was about 1.19%,compared with that without grooving.When the grooving height increased from 90 mm to 130 mm,the anode voltage drop only decreased 1.62 mV.There was no significant change in temperature field,in which the temperature of two steel claw heads in the middle carbon bowl increased.In the case of the outer diameter of cast iron at the steel claw was consistent with the width of the slot,the anode voltage drop was reduced by 29.03 mV,the decline was about 6.97%,and the temperature distribution was more uniform.

关 键 词：铝电解槽 电-热分析 磷生铁 

分 类 号：TF821[冶金工程—有色金属冶金]