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| Industrial Application of Energy-saving Technology Based on Steady Flow and Heat Preservation |
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Received:April 18, 2018
Revised:May 02, 2018
Accepted:May 02, 2018
Published Online:June 15, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.07.005 |
| KeyWord:FHEST; D.C. power consumption; aluminum electrolysis; cell voltage; current efficiency |
| Author | Institution |
| zhangyanan |
中国铝业郑州有色金属研究院有限公司 |
| Chai Dengpeng |
中国铝业郑州有色金属研究院有限公司 |
| Shi Zhirong |
中国铝业郑州有色金属研究院有限公司 |
| Hou Guanghui |
中国铝业郑州有色金属研究院有限公司 |
| Wang Yanfang |
中国铝业郑州有色金属研究院有限公司 |
| Bai Weiguo |
中国铝业郑州有色金属研究院有限公司 |
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| Abstract: |
| Energy-saving technology based on steady flow and heat preservation (FHEST) has been developed by Zhengzhou Non-ferrous Metals Research Institute Co. Ltd., CHALCO aimed at low D.C. power consumption for aluminum reduction. Based on numerical simulation modeling, integrated design with aluminum cathode steady flow, low pressure drop cathode assembly technology, redesign the contralateral lower isotherm distribution and operation acknowledge, new design criterion is established for FHEST. About 800 above cells from 200 kA to 500 kA based on FHEST have been rebuild in several smelters in China since 2013. The FHEST cells produce steadily with cell voltage of 3.75~3.85 V, current efficiency of 92.0%~94.0%, and D.C. power consumption of 12 200~12 500 kWh/t-Al. |
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