(1. 浙江大學(xué) 能源清潔利用國家重點(diǎn)實(shí)驗(yàn)室，杭州 310027；
2. 中南大學(xué) 冶金科學(xué)與工程學(xué)院，長沙 410083；
3. 昆山鋁業(yè)有限公司，昆山 215313)
摘 要: 為了優(yōu)化導(dǎo)流型鋁電解槽聚鋁溝設(shè)計(jì)方案，對槽內(nèi)熱應(yīng)力分布特征進(jìn)行研究分析。采用商用有限元計(jì)算軟件ANSYS針對兩種聚鋁溝設(shè)計(jì)方案(即方案Ⅰ為工字型聚鋁溝結(jié)構(gòu)；方案Ⅱ為單聚鋁溝結(jié)構(gòu))的導(dǎo)流槽模型進(jìn)行了電−熱−應(yīng)力耦合計(jì)算，同時針對熱應(yīng)力引起的槽體形變進(jìn)行模擬。結(jié)果表明：采用方案Ⅰ工字型聚鋁溝結(jié)構(gòu)時，槽體內(nèi)部熱應(yīng)力較大，尤其是兩端靠近橫向聚鋁溝的陰極炭塊內(nèi)部具有較大的應(yīng)力集中，而采用方案Ⅱ單聚鋁溝結(jié)構(gòu)時，該處的應(yīng)力集中得到了較好的緩和，槽體形變較小。
關(guān)鍵字: 導(dǎo)流型鋁電解槽；熱應(yīng)力；形變；有限元方法
on thermal stress distribution in drained aluminum
reduction cell
RAN Yong-hua3, ZHOU Hao1, CEN Ke-fa1
（1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;
2. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China;
3. Kunshan Aluminium Co Ltd, Kunshan 215313, China）
Abstract:In order to optimize the aluminum accumulation sump designs, the characteristics of thermo-stress distribution in the drained style aluminum reduction cells were studied. The electric-thermo-mechanical coupled simulations of two types of drained aluminum reduction cells, i.e. scenario Ⅰ is with central sump and two accessorial sumps at the ends of the cell; scenario Ⅱ is with only a central sump at the cell bottom, were conducted on the commercial finite element method software package ANSYS. The results show that, for scenario Ⅰ, a relatively large thermal stress intensity exists in the carbon cathode, especially for the carbon blocks at the two ends of the cell. For scenario Ⅱ, the aforementioned thermal stress intensity is relieved remarkably, and the deformation is relatively small.
Key words: drained style aluminum reduction cell; thermal stress; deformation; finite element method
