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Erschienen in:

2018 | OriginalPaper | Buchkapitel

Effect of Calculation Method of CaO Addition on Liquid Phase Fluidity

verfasst von : Lixin Qian, Tiejun Chun, Zhengwei Yu, Huan Wang, Yifan Wang, Hongming Long

Erschienen in: 9th International Symposium on High-Temperature Metallurgical Processing

Verlag: Springer International Publishing

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Abstract

To solve the problem that the sintered liquid phase fluidity characteristic of low silica (w(SiO₂) < 3 wt%) and high silica (w(SiO₂) > 7 wt%)) iron ores were different from actual sintering production with using the common method based on w(CaO)/w(SiO₂), a new improved method based on n(Fe₂O₃)/n(CaO) was proposed. The differences between two methods for iron ore fluidity detection were studied. The results show that when the common method is used to detect the liquid phase fluidity, as the content of SiO₂ increased from 2.12 to 11.68 wt%, the amount of CaO addition augmented from 7.88 to 32.65 wt% and the corresponding fluidity index changed from 0 to 5.68. The fluidity index has a linearly positive correlation with the content of SiO₂. The improved method could significantly reduce the effect of the change of CaO addition on the fluidity characteristic of iron ore which caused by the difference of SiO₂.

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Titel: Effect of Calculation Method of CaO Addition on Liquid Phase Fluidity
verfasst von: Lixin Qian
Tiejun Chun
Zhengwei Yu
Huan Wang
Yifan Wang
Hongming Long
Verlag: Springer International Publishing
Buch: 9th International Symposium on High-Temperature Metallurgical Processing
Print ISBN: 978-3-319-72137-8

Electronic ISBN: 978-3-319-72138-5

Copyright-Jahr: 2018
DOI: https://doi.org/10.1007/978-3-319-72138-5_43

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