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Volume 11 Issue 4
Apr.  2024

IEEE/CAA Journal of Automatica Sinica

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Article Contents
Z. Chen, X. Wang, W. Gui, J. Zhu, C. Yang, and  Z. Jiang,  “A novel sensing imaging equipment under extremely dim light for blast furnace burden surface: Starlight high-temperature industrial endoscope,” IEEE/CAA J. Autom. Sinica, vol. 11, no. 4, pp. 893–906, Apr. 2024. doi: 10.1109/JAS.2023.123954
Citation: Z. Chen, X. Wang, W. Gui, J. Zhu, C. Yang, and  Z. Jiang,  “A novel sensing imaging equipment under extremely dim light for blast furnace burden surface: Starlight high-temperature industrial endoscope,” IEEE/CAA J. Autom. Sinica, vol. 11, no. 4, pp. 893–906, Apr. 2024. doi: 10.1109/JAS.2023.123954

A Novel Sensing Imaging Equipment Under Extremely Dim Light for Blast Furnace Burden Surface: Starlight High-Temperature Industrial Endoscope

doi: 10.1109/JAS.2023.123954
Funds:  This work was supported by the National Natural Science Foundation of China (62273359), the General Project of Hunan Natural Science Foundation of China (2022JJ30748), and the National Major Scientific Research Equipment of China (61927803)
More Information
  • Blast furnace (BF) burden surface contains the most abundant, intuitive and credible smelting information and acquiring high-definition and high-brightness optical images of which is essential to realize precise material charging control, optimize gas flow distribution and improve ironmaking efficiency. It has been challengeable to obtain high-quality optical burden surface images under high-temperature, high-dust, and extremely-dim (less than 0.001 Lux) environment. Based on a novel endoscopic sensing detection idea, a reverse telephoto structure starlight imaging system with large field of view and large aperture is designed. Combined with a water-air dual cooling intelligent self-maintenance protection device and the imaging system, a starlight high-temperature industrial endoscope is developed to obtain clear optical burden surface images stably under the harsh environment. Based on an endoscope imaging area model, a material flow trajectory model and a gas-dust coupling distribution model, an optimal installation position and posture configuration method for the endoscope is proposed, which maximizes the effective imaging area and ensures large-area, safe and stable imaging of the device in a confined space. Industrial experiments and applications indicate that the proposed method obtains clear and reliable large-area optical burden surface images and reveals new BF conditions, providing key data support for green iron smelting.

     

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    Highlights

    • A starlight optical imaging system with large depth of field and wide field of view is designed
    • The intelligent self-maintenance protection device with water-air dual cooling system is developed
    • The optimum configuration of the installation position of the system is found
    • The system obtains clear and reliable large-area optical burden surface images
    • The system can reveal new BF conditions, providing key data support for green iron smelting

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