摘要
综述了铝电解过程中病槽产生原因,将病槽划分为热量平衡破坏性和物料平衡破坏性两种。研究了能量平衡控制模型在物料平衡中的应用;能量平衡控制模型通过调节槽电压、氟化铝和氧化铝添加量,在其它工艺技术条件保持不变情况下,控制铝电解槽能量。探讨了控制热量平衡的热电耦合数值有限元计算方法;在分析热电耦合机理的基础上,并建立了有限元模型。利用这两个模型能有效地预测铝电解槽热量和物料的平衡情况,及时预防和处理病槽。
The reasons of diseased cell are studied during the aluminum reduction and the diseased cells are classified into material-destroyed and thermal-destroyed cells. The energy balance controlling model can control the material balance stabilization by analysis of cell voltage, input amount of aluminum fluoride and alumina when other technological conditions are constants. The thermal-electric coupling finite element model, which controls the thermal balance during aluminum reduction process, is proposed based on the analysis of thermal-electric coupling mechanisms. The situation of material and thermal balance can be predicted efficiently using the two models and the diseased cells also can be prevented and handled in time.
出处
《机械》
2010年第1期18-21,共4页
Machinery
基金
清华大学先进成形制造教育部重点实验室开放基金(2008003)
关键词
铝电解
病槽
热平衡
能量平衡
aluminum reduction
diseased cell
thermal balance
energy balance
