矿业科学技术学报(英文版)2024,Vol.34Issue(11) :1587-1597.DOI:10.1016/j.ijmst.2024.11.001

Utilizing spatio-temporal feature fusion in videos for detecting the fluidity of coal water slurry

Meijie Sun Ziqi Lv Zhiqiang Xu Haimei Lv Yanan Tu Weidong Wang
矿业科学技术学报(英文版)2024,Vol.34Issue(11) :1587-1597.DOI:10.1016/j.ijmst.2024.11.001

Utilizing spatio-temporal feature fusion in videos for detecting the fluidity of coal water slurry

Meijie Sun 1Ziqi Lv 1Zhiqiang Xu 1Haimei Lv 2Yanan Tu 1Weidong Wang1
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作者信息

  • 1. School of Chemical&Environmental Engineering,China University of Mining&Technology (Beijing),Beijing 100083,China;Inner Mongolia Research Institute,China University of Mining&Technology (Beijing),Ordos 017001,China
  • 2. State Key Laboratory of Media Convergence Production Technology and Systems,Beijing 100803,China
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Abstract

The fluidity of coal-water slurry (CWS) is crucial for various industrial applications such as long-distance transportation,gasification,and combustion.However,there is currently a lack of rapid and accurate detection methods for assessing CWS fluidity.This paper proposed a method for analyzing the fluidity using videos of CWS dripping processes.By integrating the temporal and spatial features of each frame in the video,a multi-cascade classifier for CWS fluidity is established.The classifier distinguishes between four levels (A,B,C,and D) based on the quality of fluidity.The preliminary classification of A and D is achieved through feature engineering and the XGBoost algorithm.Subsequently,convolutional neural networks (CNN) and long short-term memory (LSTM) are utilized to further differentiate between the B and C categories which are prone to confusion.Finally,through detailed comparative experiments,the paper demonstrates the step-by-step design process of the proposed method and the superiority of the final solution.The proposed method achieves an accuracy rate of over 90%in determining the fluidity of CWS,serving as a technical reference for future industrial applications.

Key words

Coal water slurry/Spatio-temporal feature/CNN-LSTM/Video classification/Machine vision

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出版年

2024
矿业科学技术学报(英文版)
中国矿业大学

矿业科学技术学报(英文版)

CSTPCDCSCDEI
影响因子:1.222
ISSN:2095-2686
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