A hybrid prediction model of blast furnace permeability index combining least square support vector machine and artificial neural network

• Published in: Ironmaking & steelmaking
• Main Authors: Yu, Zhi-heng, Li, Xiao-ming, Wang, Bao-rong, Lin, Xu-hu, Ren, Yi-ze, Xing, Xiang-dong
• Format: Journal Article
• Language: English
• Published: 14.10.2024
• ISSN: 0301-9233; 1743-2812
• DOI: 10.1177/03019233241288764

Blast furnace (BF) permeability index is a crucial parameter that can quickly, intuitively, and comprehensively reflect the furnace condition. Accurate prediction of this index is crucial for optimising production efficiency and ensuring the stable operation of the BF. In this study, a hybrid permeability index prediction model is constructed by combining a least squares support vector machine and an artificial neural network, using the mean shift clustering algorithm (MSCA) to classify the BF conditions is applied. The results show that the MSCA algorithm shows remarkable precision in classifying the stable and unstable operating states of BF, achieving an impressive accuracy rate of 93.98%. The hybrid prediction model could accurately predict the permeability index and has a mean absolute error of 0.6877, a mean square error of 0.4721 and an R 2 of 0.9215, highlighting its robust predictive performance. These findings underscore the practical significance of our model in enhancing BF operational efficiency and reliability.