The effect of operational parameters on the characteristics of gas–solid flow inside the COREX shaft furnace

Kou, Mingyin, Wu, Shengli, Du, Kaiping, Shen, Wei, Ma, Xiaodong, Chen, Mao and Zhao, Baojun (2014) The effect of operational parameters on the characteristics of gas–solid flow inside the COREX shaft furnace. JOM, 67 2: 459-466. doi:10.1007/s11837-014-1198-2


Author Kou, Mingyin
Wu, Shengli
Du, Kaiping
Shen, Wei
Ma, Xiaodong
Chen, Mao
Zhao, Baojun
Title The effect of operational parameters on the characteristics of gas–solid flow inside the COREX shaft furnace
Journal name JOM   Check publisher's open access policy
ISSN 1543-1851
1047-4838
Publication date 2014-11-21
Year available 2014
Sub-type Article (original research)
DOI 10.1007/s11837-014-1198-2
Open Access Status
Volume 67
Issue 2
Start page 459
End page 466
Total pages 8
Place of publication New York NY United States
Publisher Springer New York
Collection year 2015
Language eng
Abstract The COREX shaft furnace is of great importance to the whole C-3000 process. There are many problems with the operation of the COREX shaft furnace, especially with gas and burden distribution, that have as yet been little studied. The present work establishes a three-dimensional quarter model. After validation by operating data in Baosteel, the model is used to investigate the gas utilization rate and the metallization rate of the COREX shaft furnace. The parameters, including the reducing gas flow, the volume fraction of gas phase, and the multilayered burden, are systematically investigated. The results show that the reducing gas flow has a great influence on the gas utilization rate and the metallization rate, while the volume fraction of gas phase has a more significant effect on the metallization rate than on the gas utilization rate. In order to obtain a higher metallization rate, the reducing gas flow needs to be adjusted step by step and the volume fraction of gas phase needs to be increased. In addition, ore and coke need to be discharged separately in order to increase the solid metallization rate.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 21 Nov 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
 
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