Temperature prediction model of molten steel for RH-MFB refining process

HAN Chuanji; LIU Qing; WU Kai; CAI Kaike

doi:10.13374/j.issn1001-053x.2006.03.010

Volume 28 Issue 3

Aug. 2021

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HAN Chuanji, LIU Qing, WU Kai, CAI Kaike. Temperature prediction model of molten steel for RH-MFB refining process[J]. Chinese Journal of Engineering, 2006, 28(3): 248-252. doi: 10.13374/j.issn1001-053x.2006.03.010

Citation:

HAN Chuanji, LIU Qing, WU Kai, CAI Kaike. Temperature prediction model of molten steel for RH-MFB refining process[J]. Chinese Journal of Engineering, 2006, 28(3): 248-252. doi: 10.13374/j.issn1001-053x.2006.03.010

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Temperature prediction model of molten steel for RH-MFB refining process

doi: 10.13374/j.issn1001-053x.2006.03.010

Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2005-01-07
Rev Recd Date: 2005-04-26

Available Online: 2021-08-24

Abstract

Abstract

A mathematical model of RH-MFB process was developed. The temperature of molten steel can be calculated by Delphi program. The results show that the temperature of molten steel declines drastically in the beginning of refining, and the speed of temperature drop is approximately 3 ℃·min^-1 in the first 10 min. Al addition, blowing oxygen, alloy addition and the initial temperature of the vacuum vessel wall have more effect on the temperature of molten steel. A comparison between the calculated and measured temperatures shows that the values with average errors in ±5℃ is by 80 % for predicting the temperature of molten steel at the end-point of RH-MFB process.
- RH-MFB,
- refining,
- molten steel temperature,
- mathematical model