Influence of center gas supply device on gas–solid flow in COREX shaft furnace through DEM–CFD model
-
Heng Zhou
,
Mingyin Kou
Abstract
In order to develop the central gas flow in COREX shaft furnace, a new installment of center gas supply device (CGD) is designed. In this work, a coupled DEM–CFD model was employed to study the influence of CGD on gas–solid flow in COREX shaft furnace. The particle descending velocity, particle segregation behaviour, void distribution and gas distribution were investigated. The results show that the CGD affects the particles descending velocity remarkably as the burden falling down to the slot. Particle segregation can be observed under the inverse ‘V’ burden profile, and the influence of CGD on the particle segregation is unobvious on the whole, which causes the result that the voidage is slightly changed. Although the effect of CGD on solid flow is not significant, the gas flow in shaft furnace has an obvious change. Compared with the condition without CGD, in the case with CGD, the gas velocity is improved significantly, especially in the middle zone of the furnace, which further promotes the center gas distribution. Meanwhile, the pressure drop in the furnace with the installation of CGD is increased partly.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51904023
Award Identifier / Grant number: 51804027
Funding source: Fundamental Research Funds for the Central Universities
Award Identifier / Grant number: FRF-TP-19-035A2
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: The authors would like to thank the National Natural Science Foundation of China (Grant Number: 51904023, 51804027) and Fundamental Research Funds for the Central Universities (Grant Number: FRF-TP-19-035A2) for their financial supports.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Artikel in diesem Heft
- Articles
- Application of a novel Polydopamine@EDTA@Fe3O4 material for efficient simultaneous nitrogen and nickel removal in an immobilized biofilm reactor
- Influence of center gas supply device on gas–solid flow in COREX shaft furnace through DEM–CFD model
- Computational fluid dynamics simulation of an Inert Particles Spouted Bed Reactor (IPSBR) system
- Modelling of large-particle-motion–heat-transfer coupling characteristics in rotary kiln based on discrete element method
- Catalytic thermolysis treatment of petroleum refinery wastewater collected from effluent treatment plant
- Effect of Fe and Co promoters on CO methanation activity of nickel catalyst prepared by impregnation – co-precipitation method
- Enhanced photo catalytic degradation of methyl orange using p–n Co3O4-TiO2 hetero-junction as catalyst
- Mathematical analysis of solar conduction dryer using reaction engineering approach
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