Abstract
Sulfide capacity is one of the essential properties of molten slag, which determines the sulfur content in the hot metal during the smelting process. In the present study, an artificial neural network model was developed to predict the sulfide capacity of molten slag over a wide range of components and temperature. A CaO–SiO2–MgO–Al2O3–FeO–TiO2–MnO slag database for sulfide capacity covering most of the previous confident literature was constructed. The influence of activation function, optimization algorithm, and various hidden layers on the performance of the models on sulfide capacity were studied using ten-fold cross-validation. The developed model shows excellent prediction performance, which is capable of accurately predicting complex slag systems, especially TiO2-bearing slag systems. The accuracy and nonlinear prediction ability of the model are verified by experiments, and the iso-sulfide capacity diagrams of CaO–SiO2–Al2O3, CaO–SiO2–TiO2–8 wt pct MgO–14 wt pct Al2O3, and CaO–SiO2–30 pct wt pct TiO2–MgO–14 wt pct Al2O3 slag systems at 1773 K were established with the model.
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Acknowledgments
This study was supported by the National Key R&D Program of China (Grant No. 2018YFC1900500) and the National Natural Science Foundation of China (Grant No. U1902217).
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Xie, H., Ling, J., Guo, J. et al. Sulfide Capacity Model for Multicomponent Molten Slag Based on Artificial Neural Network. Metall Mater Trans B 54, 3324–3342 (2023). https://doi.org/10.1007/s11663-023-02912-3
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DOI: https://doi.org/10.1007/s11663-023-02912-3