环形炉温度场模拟及分析

doi:10.13228/j.boyuan.issn0449-749x.20180104

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Abstract In order to improve the high temperature annealing process of oriented silicon steel，the heat transfer process in the annular furnace was studied by a simulation analysis approach. Through the analysis about the furnace structure and the working conditions，the model was simplified appropriately. The numerical model of the temperature field of the oriented silicon steel in high temperature annealing process was built. The temperature feature of stainless cover was concluded for different nozzle working conditions. The result of the calculation showed that when the burners were out of work，the temperature of the flue gas declined quickly along the flow direction. Moreover，when the burners were working with high power，the furnace temperature raised obviously. The high temperature region appeared in the center of the furnace whose temperature could be higher than the average value above 100 ℃. The heat transfer efficiency of radiation and convection in the furnace was high，and the maximum difference of the cover was within 30 ℃. The area of cover with unstable temperature cannot influence the coil directly. Thus，it can be considered that the temperature of the cover was well-distributed. The average error between the simulation temperature and the measurement temperature was about 15 ℃，and it declined to less than 10 ℃ after 7 h annealing process.

Key words： annular furnace electrical steel high temperature annealing temperature simulation

Received: 15 March 2018 Published: 11 October 2018

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	YAN Tian

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YAN Tian. Numerical simulation and analysis of temperature field for annular furnace[J]. Iron and Steel, 2018, 53(9): 87-92.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20180104 OR http://www.chinamet.cn/Jweb_gt/EN/Y2018/V53/I9/87

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