330 kA铝电解槽异形阴极碳块对水平电流的影响  

Effect of Shaped Cathode Carbon Blocks on Horizontal Current 330 kA Aluminum Electrolytic Cell

作　　者：翟柄德 邓胜祥 ZHAI Bingde;DENG Shengxiang(Department of Energy and Power Engineering,School of Mechanical and Automotive Engineering,Shanghai University of Engineering 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：《有色金属（冶炼部分）》2024年第6期59-64,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：上海市Ⅲ类高峰学科—材料科学与工程(高能束智能加工与绿色制造)。

摘　　要：采用有限元仿真计算,对330 kA铝电解槽传统阴极碳块结构和异形阴极碳块结构的电场进行仿真模拟,主要对铝液中水平电流分布进行分析。研究发现,异形阴极碳块结构相对于传统阴极碳块结构能够在影响压降较小的前提下降低水平电流密度。模拟结果表明,在异形阴极碳块表面凸起中增加隔断并改变凸起角度,对降低铝液中水平电流效果明显,能够降低铝液中最大水平电流密度27.8%,平均水平电流密度34.3%,有效提升了铝电解槽电流效率。Finite element simulation calculations were employed to simulate the electric field of a 330 kA aluminum electrolytic cell with both traditional and shaped cathode carbon block structures.The main focus was on analyzing the horizontal current distribution in the molten aluminum.The study reveals that compared to the traditional structure,the shaped cathode carbon block structure can reduce the horizontal current density with a minimal impact on the voltage drop.The simulation results indicate that adding partitions on the surface protrusions of the shaped cathode carbon block and altering the protrusion angles has an obvious effect on reducing the horizontal current in liquid aluminum,which can reduce the maximum horizontal current density of aluminum melt by 27.8%and the average horizontal current density by 34.3%,and effectively improve the current efficiency of aluminum electrolytic cell.

关 键 词：铝电解槽 水平电流 异形阴极 数值模拟 

分 类 号：TF821[冶金工程—有色金属冶金]