Journal of Northeastern University(Natural Science) ›› 2025, Vol. 46 ›› Issue (6): 56-65.DOI: 10.12068/j.issn.1005-3026.2025.20240011

• Materials & Metallurgy • Previous Articles     Next Articles

FeO Content Prediction Model in Sinter Based on GA-BiLSTM with Feature Optimization

Zhong-zheng LI, Zhao-xia WU, Jin-yang WANG, Zeng-xin KANG   

  1. School of Control Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China. Corresponding author: WU Zhao-xia,E-mail: ysuwzx@126. com
  • Received:2024-01-11 Online:2025-06-15 Published:2025-09-01

Abstract:

In order to solve the problems of traditional sinter quality prediction model, such as using single feature selection method and having no background of process mechanism, which results in low model prediction accuracy and lack of interpretability, a GA-BiLSTM prediction model with feature optimization is proposed. First, the optimal feature set is selected through various feature selection methods and combined with the sintering process mechanism, then GA is used to optimize BiLSTM, and finally the optimal feature set is used as the input of the GA-BiLSTM model to predict the FeO content in sinter. The GA-BiLSTM model with feature optimization was compared with other models. The results show that the prediction error of the established model is low, and the prediction accuracy for FeO mass fraction in sinter is as high as 94% within the allowable error range of ±0.5%, which may provide a new guiding direction for improving the quality of sinter.

Key words: sinter, feature optimization, FeO content, prediction model, big data

CLC Number: