阳极炭块组电-热-应力耦合场的数值仿真研究及应用  

Numerical simulation research and application of electric-thermo-stress coupled field for anode assembly

作　　者：王富强[1] 曹曦[1] 张钦菘[1] 刘雅锋[1] 杨晓东[1] 周东方[1] Wang Fuqiang;Cao Xi;Zhang Qinsong;Liu Yafeng;Yang Xiaodong;Zhou Dongfang(Shenyang Aluminum and Magnesium Engineering and Research Institute Co., Ltd., Shenyang 110001,China)

机构地区：[1]沈阳铝镁设计研究院有限公司

出　　处：《轻金属》2019年第5期22-25,40,共5页Light Metals

摘　　要：近年来,随着电解槽容量的不断增大,虽然阳极尺寸也不断增长加宽,但阳极炭块组压降升高、阳极炭块断裂和掉角等问题却日益突出。本文借助FLUENT建立了电解槽上部切片模型,确定了阳极炭块组的热边界条件,再通过ANSYS系统研究了阳极炭块组的电-热-应力场分布,并测试验证了计算模型的准确性。基于该耦合模型,为某铝厂解决了阳极开裂的实际问题,为后续优化阳极炭块组结构提供了可靠的技术平台。Along with the continuous increasing of aluminum reduction pot amperage in recent years, problems are increasingly highlighted, such as the voltage drop rise of anode assembly, anode block crack and broken comer despite the continuously - increased size of anode blocks. This paper established a slice model of the top pot based on FLUENT, and identified thermal boundary conditions of anode assembly, then the electric - thermo - stress field dis tribution of anode assembly was studied through ANSYS system to validate accuracy of the compuational model. Based on the coupled model, a practical problem of anode block cracks had already been solved for one smelter, thus providing a reliable technical platform for the subsequent structural optimiza tion of anode assembly.

关 键 词：阳极炭块组 电场 热场 应力场 耦合模型 数值仿真 

分 类 号：TF821[冶金工程—有色金属冶金]