Banana Screening Method and Simulation of Banana Screening Process Using Discrete Element Method

Abstract:

This paper presented the fundamentals of banana screening method and the structural features of the banana screen. Based on soft-dry ball contact model, banana screening process was simulated by using 3D discrete element method. The results show that the material bed on banana screen possesses a characteristic of thin and constant thickness along the screen plate. The particles velocity on the screen deck shows a decreasing distribution along the screen deck length and the decrease of velocity changes from steep at the feed end to flat at the discharge end. The instantaneous efficiency of banana screen can reach to above 0.95 and the efficiency of steady state is about 0.83. Numerical simulation results can provide references for insight understanding of the banana screening mechanism and optimization of banana screen.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 949-952
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.949
• Online since: May 2012
• Authors: Hai Lin Dong, Chu Sheng Liu, Yue Min Zhao, La La Zhao
• Keywords: Banana Screen, Discrete Element Method (DEM), Numerical Simulation, Screening Process

References

[1] Y. M. Zhao, S. G. Zhang S G and H. G. Jiao: J. China Univ. Mining & Technol. Vol.35 (2006), p.587. (in Chinese)

[2] H. G. Jiao and Y. M. Zhao: J. China Univ. Mining & Technol. Vol.36 (2007), p.232. (in Chinese)

[3] L. L. Zhao, C. S. Liu, J. X. Yan and Z. P. Xu: Acta Phys. Sin. Vol.59 (2010), p.1870. (in Chinese)

[4] J. K. Dong, A. B. Yu and I. Brake: Miner. Eng. Vol.22 (2009), p.910.

[5] P. W. Cleary, M. D. Sinnott and R. D. Morrison: Miner. Eng. (2009), p.1218.

[6] P. W. Cleary, M. D. Sinnott and R. D, Morrison: Miner. Eng. (2009), p.1230.

[7] L. L. Zhao, C. S. Liu, J. X. Yan, X. W. Jiang, Y. Zhu and Y. Zhang: J. China Univ. Mining & Technol. Vol.39 (2010), p.414. (in Chinese)

[8] L. L. Zhao, C. S. Liu and J. X. Yan: Mining Science and Technology Vol.20 (2010), p.276.

[9] L. L. Zhao, C. S. Liu, J. X. Yan, X. W. Jiang and Y. Zhu: J. China Coal Society Vol.35 (2010), p.307. (in Chinese)

[10] L. L. Zhao, C. S. Liu, J. X. Yan, X. W. Jiang and Y. Zhu: Acta Phys. Sin. Vol.59 (2010), p.2582. (in Chinese)