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Research on the velocity distribution law of the coke in the chute of blast furnace based on discrete element method

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Abstract

The velocity distribution law of coke particles in the rotating chute of a blast furnace is the key factor determining the three-dimensional shape of the burden surface, and it is of great significance to improve the charging operation of blast furnace and realize energy saving and emission reduction. To analyze the velocity distribution law of coke in the chute, a 1:8 bell-less blast furnace based on the discrete element method is first established. Then, a coordinate transformation method is proposed to obtain the position and velocity information of the coke relative to the rotating chute. Finally, the movement trend and velocity distribution law of coke in the chute are analyzed. Results indicate that the velocity distribution of coke has apparent stratification. When the chute is stationary, the velocity is greater, while the coke is near the chute symmetry or farther from the chute edge. When the chute is rotating, the Z-axis velocity of the coke with a large radial movement distance is smaller than that of the coke with a small radial movement distance, but the radial velocity of the coke with a large radial movement distance is greater than that of the coke with a large radial movement distance.

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Funding

This study was funded by the National Major Scientific Research Equipment of China (Grant No. 61927803), the National Natural Science Foundation of China Basic Science Center Project (Grant No. 61988101), the Science and Technology Innovation Program of Hunan Province (Grant No. 2021RC4054), the Hunan Provincial Innovation Foundation for Postgraduate (No. CX20200200), in part by the Fundamental Research Funds for the Central Universities of Central South University (Nos. 2020zzts124 and 2021 zzts0184).

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Authors and Affiliations

  1. School of Automation, Central South University, Changsha, 410083, China

    Ke Zhou, Zhaohui Jiang, Dong Pan, Weihua Gui, Jiancai Huang & Chuan Xu

  2. Peng Cheng Laboratory, Shenzhen, 518000, China

    Zhaohui Jiang & Weihua Gui

Authors
  1. Ke Zhou
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  2. Zhaohui Jiang
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  3. Dong Pan
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  4. Weihua Gui
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  5. Jiancai Huang
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  6. Chuan Xu
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Correspondence to Zhaohui Jiang.

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Zhou, K., Jiang, Z., Pan, D. et al. Research on the velocity distribution law of the coke in the chute of blast furnace based on discrete element method. Comp. Part. Mech. 10, 303–311 (2023). https://doi.org/10.1007/s40571-022-00494-6

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  • DOI: https://doi.org/10.1007/s40571-022-00494-6

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