|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Aluminum Reduction Technology
||Characterization of Bubble Behavior in Aluminum Reduction Cells
||Xiaojun Lv, Yajing Shuang, Jie Li, Lingyun Hu, Jianhua Liu, Zhenming Xu, Hongliang Zhang
|On-Site Speaker (Planned)
The better understanding of anode bubble behavior during aluminum electrolysis can help not only improve the “noise control”, but also optimum the operation condition and parameters. The effects of current density, electrolysis temperature, alumina content on bubble behavior were investigated in this study. The voltage signals were analyzed using Fast Fourier transform to studying variations in the frequency responses. This study demonstrates that the size of bubbles become smaller with the increase of current density, and alumina content. Bubble release frequency increases with increase of current density, temperature and alumina content. The amplitude of cell voltage fluctuation decreases from 80mV to 15 mV as current density increases from 0.4 A/cm2 to 1.0 A/cm2. The domain frequency increases from 0.1Hz to 0.2 Hz as temperature increases from 950 oC to 970 oC.
||Planned: Light Metals Volume