铝电解槽不同铝水平高度电热场模拟对比  

Comparison of Electric Heating Field Simulation for Aluminum Electrolysis Cells at Different Aluminum Horizontal Heights

作　　者：于帅康 邓胜祥 Johnson Yap YU Shuaikang;DENG Shengxiang;JOHNSON Yap(Department of Energy and Power Engineering,School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;International Laboratory of New Energy and Energy Saving New Technologies,Shanghai University of Engineering Science,Shanghai 201620,China;SCORE EPCC SDN BHD,Bintulu,Malaysia)

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及节能新技术国际实验室,上海201620 [3]SCORE EPCC SDN BHD,Bintulu,Malaysia

出　　处：《有色金属工程》2024年第10期73-80,共8页Nonferrous Metals Engineering

基　　金：电子行业工业节能与绿色标准化研究项目(SJJNZT1904-2019)。

摘　　要：铝水平高度是铝电解过程中的重要指标,合适的铝水平可保持良好的槽内物理场使电解槽稳定生产。因此,找到合适的铝水平高度对电解槽良好工作至关重要。利用SOLIDWORKS建模软件绘制了四组350 kA不同铝水平电解槽,通过COMSOL仿真软件分别对四组不同铝水平电解槽电场及热场进行模拟并对比某厂350 kA电解槽现场测试数据,验证了模拟准确性。发现随着铝水平的不断升高,电解槽内电势、电流密度及整体温度均呈下降趋势。通过电场热场对比,认为350 kA电解槽铝水平位于20~22 cm区间为最优,压降为3630~3810 mV,槽内高温约为950℃。The aluminum horizontal height is an important indicator in the aluminum electrolysis process,and an appropriate aluminum level can maintain a good physical field inside the cell to ensure stable production.Therefore,finding the appropriate aluminum horizontal height is crucial for the optimal operation of the cell.SOLIDWORKS modeling software was used to draw four sets of 350 kA aluminum electrolysis cells with different aluminum levels in this paper.Through COMSOL simulation software,the electric and thermal fields of the four sets of different aluminum electrolysis cells were simulated and compared with the on-site test data of a certain factory′s 350 kA electrolysis cell,verifying the accuracy of the simulation.It was found that with the continuous increase of aluminum level,the potential,current density,and overall temperature inside the electrolytic cell all showed a downward trend.By comparing the electric and thermal fields,it is believed that the optimal aluminum level for a 350 kA electrolytic cell is in the range of 20-22 cm,with a pressure drop of 3630-3810 mV and a high temperature inside the cell of about 950℃.

关 键 词：铝电解槽 铝水平 电场热场 仿真模拟 

分 类 号：TF821[冶金工程—有色金属冶金]