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Research on the axial velocity of the raw coal particles in vertical screw conveyor by using the discrete element method

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Abstract

An incorrect formula of the average axial speed can lead to the incorrect derivation of the conveying volume formula, which in turn can produce an incorrect design of the vertical screw conveyor. In this study, the conveying model of the vertical screw conveyor and the raw coal particle model are established. Using the discrete element method, the influence of various parameters, such as the spiral speed, filling rate, pipe diameter, and pitch, on the axial velocity of the raw coal particles is calculated, simulated, and analyzed. Corresponding to the average axial velocity distribution histogram and the derivation of the particle average axial velocity formula, a theoretical basis for the optimization design of the vertical screw conveyor is provided.

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References

  1. P. J. Owen and P. W. Cleary, Screw conveyor performance: comparison of discrete element modelling with laboratory experiments, Seventh International Conference on CFD in the Minerals and Process Industries (2009) 1–7.

  2. W. Meng, Z. Zhao, Y. Guo, X. Sun and Y. Li, Numerical simulation of particle flow of vertical screw conveyor under periodic boundary conditions, China Powder Technology, 22 (2016) 28–33.

    Google Scholar 

  3. Z. Zhao, W. Meng, X. Sun, Q. Jiang and L. Zhang, Distribution of particle velocity in vertical screw conveyor, Chinese Journal of Mechanical Engineering, 15(6) (2015) 909–915.

    Google Scholar 

  4. P. J. Owen and P. W. Cleary, Prediction of screw conveyor performance using the Discrete Element Method (DEM), Powder Technology, 193(3) (2009) 274–288.

    Article  Google Scholar 

  5. S. Yoshiyuki and A. C. Peter, Three-dimensional DEM simulations of bulk handling by screw conveyors, Journal of Engineering Mechanics, 127(9) (2001) 864–872.

    Article  Google Scholar 

  6. J. Ren, J. Zhou, L. Han and Y. Hu, Analysis of the movement law of bulk materials in vertical screw conveyors, Thermal Energy and Power Engineering, 33(6) (2018) 77–82.

    Google Scholar 

  7. M. Zeng, X. Si, C. Han and H. Zhai, Experimental research on conveying performance of vertical downward screw conveyor, Mining Machinery, 38(1) (2010) 60–63.

    Google Scholar 

  8. S. Xiaoxia, M. Wenjun and Y. Yuan, Conditions of gas-solid two-phase flow formed in a vertical screw conveyor, Advances in Mechanical Engineering, 10(9) (2018) 1–10.

    Article  Google Scholar 

  9. P. A. Moysey and M. R. Thompson, Modelling the solids inflow and solids conveying of single-screw extruders using the discrete element method, Powder Technology, 153 (2005) 95–107.

    Article  Google Scholar 

  10. A. W. Roberts and A. H. Willis, Performance of grain augers, Proceedings of the Institution of Mechanical Engineers, 176(8) (1962) 165–194.

    Article  Google Scholar 

  11. J. Rozbroj, J. Zegzulka and J. Nečas, Use of DEM in the determination of friction parameters on a physical comparative model of a vertical screw conveyor, Chem. Biochem. Eng. Q., 29(1) (2015) 25–34.

    Article  Google Scholar 

  12. G. Hu, Discrete Element Method Analysis and Simulation of Particle System, Wuhan; Wuhan University of Technology Press (2010) 301–302.

  13. C. Wang, T. Zhang, L. Li, J. Chen and X. Meng, Research on the screening efficiency of wet raw coal particles in a three-degree-of-freedom hybrid vibrating screen, Journal of Mechanical Engineering, 23(3) (2016) 265–266.

    Google Scholar 

  14. R. Chen, X. Chen, J. Cai, D. Liu and C. Liang, Experimental study on the characteristics of screw conveyance of granular coal, Journal of China Coal Society, 37(1) (2012) 154–157.

    Google Scholar 

  15. S. Yu and Y. Chen, The influence of spiral blades on the performance of vertical screw conveyor, China Powder Technology, 22(3) (2016) 99–103.

    Google Scholar 

  16. S. Yu and Y. Chen, The influence of screw shaft diameter on the performance of screw conveyor, China Powder Technology, 24(2) (2018) 32–37.

    Google Scholar 

  17. Q. Sun, F. Jin and G. Wang, Multi-scale structure of dense granular matter, Mechanics in Engineering, 1 (2010) 10–15.

    Google Scholar 

  18. Q. Sun and F. Jin, Multi-scale structure of particulate matter and its research framework, Physics, 38(4) (2009) 225–232.

    Google Scholar 

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Acknowledgments

The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This research was supported by National Natural Science Foundation of China under Grant No. 52075356, Shanxi Province Applied Basic Research Project under Grant No. 201801D221219, and Taiyuan University of Science and Technology Research Startup Fund Project.

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Authors and Affiliations

  1. Mechanical Engineering College, Taiyuan University of Science and Technology, Shanxi, 030024, China

    Zhao Yang, Sun Xiaoxia & Meng Wenjun

  2. Shanxi Energy College, Shanxi, 030024, China

    Meng Wenjun

Authors
  1. Zhao Yang
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  2. Sun Xiaoxia
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  3. Meng Wenjun
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Corresponding authors

Correspondence to Zhao Yang or Sun Xiaoxia.

Additional information

Sun Xiaoxia received her Ph.D. degree from the Department of Mechanical Engineering, Taiyuan University of Science and Technology. She is now a Professor at the Department of Mechanical Engineering, Taiyuan University of Science and Technology. Her research interests include continuous transport machinery, intelligent logistics equipment and gas-solid-liquid multiphase flow.

Zhao Yang is a graduate student at Taiyuan University of Science and Technology. His research interests include continuous conveying machinery and spiral ship unloading machinery.

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Yang, Z., Xiaoxia, S. & Wenjun, M. Research on the axial velocity of the raw coal particles in vertical screw conveyor by using the discrete element method. J Mech Sci Technol 35, 2551–2560 (2021). https://doi.org/10.1007/s12206-021-0526-z

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  • DOI: https://doi.org/10.1007/s12206-021-0526-z

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