Abstract

In order to optimize the baking of RH vessel, numerical simulation of gas flow, combustion and heat transfer in vacuum vessel during the baking process was conducted. The FLUENT code with finite volume and SIMPLEC methods was adopted to investigate the influence of top lance position on the temperature distribution of RH vessel. The numerical model was verified with the experimental data. Results show that the different height of RH top lance could cause significant changes of temperature distribution in the vertical direction. There is an ideal and uniformity in temperature distribution when the top lance height is 4.5 m, which is benefited for removing the remaining solid steel in RH vessel. When the height of top lance is 5 m, the bottom of the vacuum vessel and the immerge tube are in high baking temperature. The two baking schemes could be used in combination in the production process to improve the baking effect.

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