Abstract
The thermal state of iron ore pellets during traveling-grate processes is complex, and sintering is a complex coupling process involving multiple physical factors. In this study, the temperature distribution during updraught drying (UDD) is investigated using computational fluid dynamics (CFD) and orthogonal testing. Based on the calculated temperature profiles and temperature increase at different positions, the temperature distribution for industrial parameters is presented. Moreover, multifactor analysis is then applied using four-factor three-level orthogonal tests to understand the influence of each factor on the pellet bed temperature. The results indicate that the temperature of the inlet gas has the greatest influence on the pellet bed, followed by the height of the pellet bed, consistent with the experimental results. The proposed computational framework could also be used to evaluate and design the thermodynamic parameters of traveling-grate processes.
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The authors would like to acknowledge the support of the Natural Science Foundation of China (51675245).
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Zhou, F., Li, Y., Sun, Y. et al. Study of the Parameters Influencing the Temperature Distribution in UDD in Traveling Grate Using CFD and Orthogonal Testing. JOM 72, 1406–1413 (2020). https://doi.org/10.1007/s11837-019-03981-z
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DOI: https://doi.org/10.1007/s11837-019-03981-z