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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 14    No. 6    December 2004

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Mathematical simulation of gas induced bath flow in drained aluminum reduction cell
LI Xiang-peng(李相鹏), LI Jie(李 劼), LAI Yan-qing(赖延清),
ZHAO Heng-qin(赵恒勤), LIU Ye-xiang(刘业翔)

School of Metallurgical Science and Engineering, Central South University,
Changsha 410083, China

Abstract: A mathematical model describing the bubble driven bath flow in a drained cell with a center sump was presented, which spanned the fluid around half an anode and was developed to simulate the flow fields. The calculated results show reasonable agreement with the experiment. Then the model was developed to a full cell model, and bath flow pattern in the whole cell was predicted and analyzed. The flow pattern variation with the changes of the ACD, anode slope, anode immersion depth and current density, especially the fluid secondary recirculation, was modeled. According to the results, side channel or slots feeding technique was recommended in such a drained cell.

 

Key words:  bath flow pattern; mathematical model; drained cell

ISSN 1672-7029
CN 43-1423/U

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