摘要
阴极炭块石墨化是如今铝厂改型升级的重要手段,首先通过COMSOL仿真软件对石墨化阴极炭块铝电解槽切片模型进行热场数值模拟,发现石墨化阴极炭块温度分布均匀,最高温度为933.05℃。其次,对某铝厂使用石墨化阴极炭块后进行能量平衡测试,能量总支出占总收入的97.22%,收支较为平衡。最后,通过增加阳极覆盖料厚度以及在底部和侧部增加纳米保温材料的方法来优化热场,保温层厚度为96 mm时,每毫米增加1.43℃,保温效果最佳。
The graphitization of cathode carbon block is an important tool of aluminum smelters for upgrading currently.Firstly,the thermal field of the graphitized cathode carbon block aluminum reduction pot slice model was simulated numerically by COMSOL simulation software,and it was found that the temperature distribution of the graphitized cathode carbon block was uniform,with a maximum temperature of 933.05℃.Secondly,the energy balance test was carried out after the application of graphitized cathode carbon blocks to an aluminum smelter,and the total energy output accounted for 97.22%of the total input,the input and output were relatively balanced.Finally,the thermal field was optimized by increasing the thickness of the anode covering material and adding nano insulation materials at the bottom and sides,the insulation layer thickness was 96 mm,with an increase of 1.43℃per millimeter,and the thermal insulation effect was the best.
作者
邢涛
邓胜祥
Xing Tao;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 Energy Conservation Technology,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《轻金属》
2024年第5期20-26,共7页
Light Metals
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)。
关键词
铝电解槽
阴极炭块
数值模拟
热场测试
热场优化
aluminum reduction pot
cathode carbon block
numerical simulation
thermal field test
thermal field optimization
