The coupling effect in the drying section of traveling grate: A CFD and experimental study

Traveling grate is a widely used process for iron ore pellet production, but the thermal state of pellets in the drying section is still unclear. In this study, the temperature distribution of the drying section was investigated using computational fluid dynamics (CFD). The results indicate there is...

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Bibliographic Details
Published inMining engineering Vol. 73; no. 7; pp. 114 - 116
Main Authors Zhou, Feng, Chen, Caijun, Pu, Zhou, Zhang, Ming, Wu, Zhenwei, Zhang, Xiliang, Li, Boquan
Format Journal Article
LanguageEnglish
Published Littleton Society for Mining, Metallurgy, and Exploration, Inc 01.04.2021
Subjects
Computational fluid dynamics
Computer applications
Coupling
Drying
Experiments
Finite volume method
Fluid dynamics
Heat
Hydrodynamics
Insulating materials
Insulation
Iron compounds
Iron ores
Mathematical models
Pellets
Simulation
Temperature distribution
Temperature gradients
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Summary:Traveling grate is a widely used process for iron ore pellet production, but the thermal state of pellets in the drying section is still unclear. In this study, the temperature distribution of the drying section was investigated using computational fluid dynamics (CFD). The results indicate there is a coupling effect in the drying section of a traveling grate. Gas with higher temperature in down-draught drying (DDD) transfers heat to the up-draught drying (UDD) through the gap of the insulation board, and the temperature gradient of the pellet bed changes before reaching the insulation board. The characteristics of pellet bed expected to appear in DDD are displayed in UDD in advance. To verify the model, a contrast experiment was conducted.
ISSN:0026-5187
DOI:10.1007/s42461-021-00398-8