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| Cold Model Study on Mg Desulfurization of Hot Metal Under Mechanical Stirring |
| LIU Yan1,ZHANG Zi-mu1,LIU Jian-nan2,ZHANG Jun-hua3,Masamichi Sano4,ZHANG Jun1 |
1. Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China
2. Beijing Institute of Technology, Beijing 100081, China
3. Dalian University of Technology, Dalian 116000, Liaoning, China
4. Nagoya University, Nagoya 464-8603, Aichi Prefecture, Japan |
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Abstract The new method of in-situ desulfurization with mechanical stirring of new type impellers was introduced, in which the bubble��s dispersion and disintegration of magnesium vapor were the key to boosting the desulfurization efficiency and increasing the utilization rate of magnesium. Effects of different new type of impellers on bubble dispersion and disintegration were studied through bubble image analysis, gas-liquid mass transfer, and power consumption levels of different impeller structures. The results showed that the sloped swept-back blade impeller-2 produces optimal bubble��s dispersion and disintegration, as well as higher volumetric mass transfer coefficient and CO2 gas utilization while consuming the least power. Numerical simulation result with Fluent software also showed that the sloped swept-back blade impeller-2 has higher turbulent kinetic energy and better velocity distribution than the other two impellers.
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Received: 09 October 2012
Published: 17 December 2013
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| Fund:Projects Sponsored by the National Natural Science Foundation of China;High Technology Research and Development Program of China |
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Corresponding Authors:
LIU yan
E-mail: shanqibao2000@163.com
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2013, Vol. 20 
