Cold Model Study on Mg Desulfurization of Hot Metal Under Mechanical Stirring |
| |
| Authors: | Yan LIU Zi-mu ZHANG Jian-nan LIU Jun-hua ZHANG Masamichi Sano Jun ZHANG |
| |
| Affiliation: | 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 |
| |
| 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. |
| |
| Keywords: | gas injection refining eccentric mechanical stirring bubble disintegration bubble dispersion volumetric mass transfer coefficient Mg desulfurization hot metal |
| 本文献已被 CNKI ScienceDirect 等数据库收录！ |
|
