Research on Weighted Coupled Neural Network Model for Prediction of Fusibility of Coal Ash with Complex Composition

詹子仪; 黄延凯; 喻鑫; 周子健; 于敦喜; 徐明厚

doi:10.3969/j.issn.1008-0198.2025.06.009

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Research on Weighted Coupled Neural Network Model for Prediction of Fusibility of Coal Ash with Complex Composition

更新时间：2026-02-06

- Research on Weighted Coupled Neural Network Model for Prediction of Fusibility of Coal Ash with Complex Composition
- Vol. 45, Issue 6, Pages: 68-75(2025)
- 作者机构：
  
  华中科技大学煤燃烧与低碳利用全国重点实验室,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1008-0198.2025.06.009
  CLC： TK227.1
- Online First：13 January 2026，
  
  Published：2025
- 稿件说明：
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詹子仪, 黄延凯, 喻鑫, 周子健, 于敦喜, 徐明厚. 用于复杂煤灰熔融特性预测的加权耦合神经网络模型[J]. 湖南电力, 2025, 45(6): 68-75.

詹子仪, 黄延凯, 喻鑫, et al. Research on Weighted Coupled Neural Network Model for Prediction of Fusibility of Coal Ash with Complex Composition[J]. 2025, 45(6): 68-75.
詹子仪, 黄延凯, 喻鑫, 周子健, 于敦喜, 徐明厚. 用于复杂煤灰熔融特性预测的加权耦合神经网络模型[J]. 湖南电力, 2025, 45(6): 68-75. DOI： 10.3969/j.issn.1008-0198.2025.06.009.

詹子仪, 黄延凯, 喻鑫, et al. Research on Weighted Coupled Neural Network Model for Prediction of Fusibility of Coal Ash with Complex Composition[J]. 2025, 45(6): 68-75. DOI： 10.3969/j.issn.1008-0198.2025.06.009.

摘要

针对常规神经网络预测复杂煤灰熔融特性存在较大误差的问题

提出一种新型加权耦合神经网络（weight coupled neural network

WCN）预测模型。其特征在于

基于煤灰Si-Al-Ca-Fe体系竞争反应机理

对传统前馈神经网络进行改进

将煤灰硅铝比（silica-to-alumina ratio

S/A）和钙铁比（calcium-to-iron ratio

C/F）作为特征项输入权重网络

再与组分网络的输出耦合

使神经网络具有灵活可调的预测权重

从而提高模型适应性和预测精度。对比煤灰软化温度预测结果表明

WCN模型对测试集预测的最大误差低于60 ℃

优于国家标准（GB/T 219—2008）对煤灰熔融特性复现性的要求（80 ℃）;相比常规极端梯度提升算法和反向传播神经网络模型

WCN模型对复杂高碱煤（准东煤）灰的预测精度分别提高了32.8%和83%。研究表明

WCN模型在煤灰适应性和预测精度等方面均有较大提升

具有较好应用价值。

Abstract

To address the significant errors associated with conventional neural network models in predicting the fusibility of coal ash with complex composition

a novel weighted coupled neural network model (WCN) is proposed. It is particularly characterized by the modification of the traditional feedforward neural network based on the competitive reaction mechanisms of the coal ash Si-Al-Ca-Fe systems. Specifically

the silica-to-alumina ratio (S/A) and calcium-to-iron ratio (C/F) of coal ash are incorporated as feature items into a weighted network

whose outputs are then coupled with those of the component network

enabling the neural network to have flexible and adjustable prediction weights

thereby enhancing the model's adaptability and prediction accuracy. Comparison of the prediction results of coal ash softening temperature by different models demonstrates that the maximum errors of the WCN model in the prediction of the test set is below 60 ℃

outperforming the reproducibility requirement (80 ℃) for coal ash fusion characteristics in the Chinese National Standard(GB/T 219—2008). Furthermore

compared to the conventional eXtreme Gradient Boosting(XGBOOST) and back propagation neural network(BPNN) models

the WCN model improves prediction accuracy for complex high-alkali coal(e.g.

Zhundong coal) ash by 32.8% and 83%

respectively. The study shows that the WCN model achieves significant improvements in both coal ash adaptability and prediction accuracy

demonstrating considerable application value.

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