Numerical Simulation of Burden and Gas Distributions Inside COREX Shaft Furnace

Kou, Mingyin, Wu, Shengli, Wang, Geoff, Zhao, Baojun and Cai, Qingwu (2015) Numerical Simulation of Burden and Gas Distributions Inside COREX Shaft Furnace. Steel Research International, 86 6: 686-694. doi:10.1002/srin.201400311

Author Kou, Mingyin
Wu, Shengli
Wang, Geoff
Zhao, Baojun
Cai, Qingwu
Title Numerical Simulation of Burden and Gas Distributions Inside COREX Shaft Furnace
Journal name Steel Research International   Check publisher's open access policy
ISSN 1611-3683
Publication date 2015
Year available 2015
Sub-type Article (original research)
DOI 10.1002/srin.201400311
Volume 86
Issue 6
Start page 686
End page 694
Total pages 9
Place of publication Weinheim, Germany
Publisher Wiley-VCH Verlag
Collection year 2016
Language eng
Formatted abstract
Shaft furnace plays a very important role in the quantity and quality indexes of the COREX process. However, the simulation on the burden and gas distributions in COREX shaft furnace is still immature and hence needs further developed and improved. For instance, currently the geometric model is commonly used to simulate the COREX shaft furnace, but can only take into account one or two kinds of burden materials. To improve the simulation of the COREX shaft furnace, a three dimensional model of COREX shaft furnace is developed in this study. It applies the discrete element method (DEM) to a COREX-3000 shaft furnace with the charging system whose size is the same as the actual one. The model simulates the charging process with four types of burdens together and then is used to investigate the effects of different distributor angles on the burden and gas distributions. Results show that the position of burden apex moves towards the wall and the height of burden profile decreases with the increase of distributor angle. Coke and flux roll away from the striking point, while ore segregates close to the striking point, and pellet always tends to move towards the central area. Coke and flux segregate more obviously in the wall area when the distributor angle is no larger than 10° while they segregate more in both the wall and the center areas when the angle is no smaller than 20°. The distributor angle is recommended to be no larger than 10° to control the central gas flow and be larger than 25° to prevent the peripheral gas from over developing.
Keyword Burden distribution
COREX shaft furnace
Distributor angle
Gas distribution
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2016 Collection
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Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
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