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| Study on Ledge Forming under Conditions of Increased High Amperage Aluminum Reduction Cell |
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Received:January 20, 2012
Revised:January 21, 2012
Accepted:January 29, 2012
Published Online:May 31, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.06.009 |
| KeyWord:350 kA aluminum cell; chemical reaction; ledge; degree of graphitization; current reinforcement |
| Author | Institution |
| WANG Wei |
北京科技大学冶金与生态工程学院 |
| XUE Ji-lai |
北京科技大学冶金与生态工程学院 |
| ZHU Jun |
北京科技大学冶金与生态工程学院 |
| LIU Qiao-chu |
北京科技大学冶金与生态工程学院 |
| LIU Kang |
北京科技大学冶金与生态工程学院 |
| NIU Qing-ren |
中电投宁夏青铜峡能源铝业集团有限公司 |
| HE Hua |
中电投宁夏青铜峡能源铝业集团有限公司 |
| HAN Li-guo |
中电投宁夏青铜峡能源铝业集团有限公司 |
| WANG Yan-qing |
中电投宁夏青铜峡能源铝业集团有限公司 |
| ZHANG Cheng-hao |
中电投宁夏青铜峡能源铝业集团有限公司 |
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| Abstract: |
| The ledge thickness and temperature distribution were measured on site with 350 kA aluminum cells as the research object. The ledge shape and temperature field before and after current reinforcement was numerical simulated by finite element method with account of chemical reactions. The effects of cathode materials on the ledge thickness and freeze liquidus isotherms and the operation parameters on the ledge shape after current reinforcement of the cell with graphitized cathodes were analyzed. The results show that the simulation result coincides with the industrial data considerably, and the model can be used to reinforce current, assess cathode materials and optimize the operation parameters. |
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