THERMAL SCIENCE

International Scientific Journal

Zhimin Liu

,

Pengzhou Meng

,

Yincheng Liang

,

Jiahao Li

,

Shiyu Miao

,

Yue Pan

RESEARCH ON LIME ROTARY KILN TEMPERATURE PREDICTION BY MULTI-MODEL FUSION NEURAL NETWORK BASED ON DYNAMIC TIME DELAY ANALYSIS

ABSTRACT
The lime rotary kiln systems are widely used in the metallurgical industry, where the combustion state is exceptionally complex, and it is difficult to predict and control the calcined zone’s temperature. The lime rotary kiln system uses the entropy and grey correlation model, combining the lime rotary kiln operation process to determine the input and output characteristics of the model. Then, it analyzes the time lag and inertia in the lime rotary kiln combustion system to compensate for the temperature prediction in the lime rotary kiln by using the CNN-BILSTM-OC model. Correcting the expected output results with the actual situation. The experimental analysis shows that the proposed model has a higher prediction accuracy than others. The maximum relative error calculated for the future temperature prediction is 0.2098%, while the generalized average of the root mean square error of the model under different working conditions is 0.9639. The generalized average of the mean absolute error is 0.6683, which shows that the model has a strong generalization ability to meet practical applications.
KEYWORDS
lime rotary kiln system, the compensation of the time lag of the dynamic error, entropy and grey correlation model, temperature predict
PAPER SUBMITTED: 2023-09-02
PAPER REVISED: 2023-10-26
PAPER ACCEPTED: 2023-11-02
PUBLISHED ONLINE: 2023-12-10
DOI REFERENCE: https://doi.org/10.2298/TSCI230902264L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 3, PAGES [2703 - 2715]
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Research on lime rotary kiln temperature prediction by multi-model fusion neural network based on dynamic time delay analysis

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence