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Loading Performance of a Novel Shearer Drum Applied to Thin Coal Seams

Author

Listed:
  • Kuidong Gao

    (College of Mechanical & Electrical Engineering, Shandong University of Science & Technology, Qingdao 266590, China
    College of Transportation, Shandong University of Science & Technology, Qingdao 266590, China)

  • Xiaodi Zhang

    (College of Mechanical & Electrical Engineering, Shandong University of Science & Technology, Qingdao 266590, China)

  • Liqing Sun

    (College of Mechanical & Electrical Engineering, Shandong University of Science & Technology, Qingdao 266590, China)

  • Qingliang Zeng

    (College of Mechanical & Electrical Engineering, Shandong University of Science & Technology, Qingdao 266590, China
    School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China
    Shandong Province Key Laboratory of Mine Mechanical Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Zhihai Liu

    (College of Transportation, Shandong University of Science & Technology, Qingdao 266590, China)

Abstract

The poor loading performance of shearer drums restricts the development and production efficiency of coal in thin coal seams. Changing operation and structural parameters can improve the drum’s loading performance to some extent, but the effect is not obvious. A two-segment differential rotational speed drum (TDRSD) was proposed after analyzing the drum’s influence mechanism on coal particles. To further reveal the drum’s coal loading principle, the velocity, particles distribution, and loading rate were analyzed. The effect of the matching relationship of the rotational speed and helix angle between the front and rear drum are also discussed. The results show that a lower front drum rotational speed had a positive impact on improving the loading performance, and the loading rate first increases and then decreases with the increase in rear drum rotational speed. The optimal loading performance was obtained in the range 60–67.5 rpm. The front drum’s helix angle had no evident effect on loading performance, and the loading rate increase with the increase in the rear drum’s helix angle. The results provide a reference and guidance for operation parameters selection, structure design, and drum optimization.

Suggested Citation

  • Kuidong Gao & Xiaodi Zhang & Liqing Sun & Qingliang Zeng & Zhihai Liu, 2021. "Loading Performance of a Novel Shearer Drum Applied to Thin Coal Seams," Energies, MDPI, vol. 14(2), pages 1-21, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:2:p:358-:d:478270
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    References listed on IDEAS

    as
    1. Kuidong Gao & Xiaodi Zhang & Liqing Sun & Qingliang Zeng & Kao Jiang, 2020. "Complex Effects of Drum Hub Forms and Structural Parameters on Coal Loading Performance," Complexity, Hindawi, vol. 2020, pages 1-19, June.
    2. K. H. Zheng & B. J. Qiu & J. P. Li & K. D. Gao, 2019. "3D XCT Mesostructure Characterization and Image-Based Discrete Element (DE) Modelling of Failure Patterns in Coal Gangue Particles (CGPs)," Complexity, Hindawi, vol. 2019, pages 1-13, November.
    3. Dejian Ma & Xin Zhang & Lirong Wan & Qingliang Zeng & Hongen Ge, 2020. "Dynamic Analysis of Shearer Traction Unit Considering the Longitudinal Swing," Energies, MDPI, vol. 13(20), pages 1-15, October.
    4. Lijuan Zhao & Hongmei Liu & Wenchao Zhou, 2019. "A Study on the Dynamic Transmission Law of Spiral Drum Cutting Coal Rock Based on ANSYS/LS-DYNA Simulation," Complexity, Hindawi, vol. 2019, pages 1-14, January.
    5. Kai Wang & Yanli Huang & Huadong Gao & Wen Zhai & Yongfeng Qiao & Junmeng Li & Shenyang Ouyang & Wei Li, 2020. "Recovery Technology of Bottom Coal in the Gob-Side Entry of Thick Coal Seam Based on Floor Heave Induced by Narrow Coal Pillar," Energies, MDPI, vol. 13(13), pages 1-20, July.
    6. Yanrong Dong & Junzhen Di & Xianjun Wang & Lindan Xue & Zhenhua Yang & Xuying Guo & Mingwei Li, 2020. "Dynamic Experimental Study on Treatment of Acid Mine Drainage by Bacteria Supported in Natural Minerals," Energies, MDPI, vol. 13(2), pages 1-14, January.
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