Skip to main content
SpringerLink
Log in

Mechanisms and Kinetics of Separation of Impurities of Large and Small Particles in Gravity Flow of Granular Material

  • RESEARCH, DESIGN, NUMERICAL ANALYSES, AND OPERATING EXPERIENCE
  • PROCESSES AND EQUIPMENT OF CHEMICAL AND OIL-AND-GAS TECHNOLOGIES
  • Published:
Chemical and Petroleum Engineering Aims and scope

The processes of separation of impurities of particles of different sizes are analyzed under conditions of irregularity of structural and kinematic parameters of a fast sheared gravity flow of granular materials on a rough slope using mathematical model of distributions of impurity concentration in the flow and comparing calculation results with experimental data. It was found that separation of impurities of large particles is essentially a consequence of relaxation of stresses generated on these particles as concentrators of local stresses and that separation of small particle occurs with dominance of the effect of quasi-diffusion separation of particles under conditions of spatial irregularity of distribution of the solid phase. Methods for separation process intensification are identified.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.

Similar content being viewed by others

References

  1. V. N. Dolgunin, A. A. Ukolov, and O. O. Ivanov, “Segregation kinetics in the rapid gravity flow of granular materials,” Theor. Found. Chem. Eng., 40, No. 4, 393–404 (2006).

    Article  CAS  Google Scholar 

  2. J. Gray and A. R. Thornton, “A theory for particle size segregation in shallow granular free-surface flows,” Proceedings of the Royal Society of London A, 461, No. 2057, 1447–1473 (2005).

    CAS  Google Scholar 

  3. K. M. Hill and Y. Fan, “Granular temperature and segregation in dense sheared particulate mixtures,” KONA Powder and Particle Journal, 33, 150–168 (2016).

    Article  Google Scholar 

  4. V. N. Dolgunin, A. N. Kudy, and A. A. Ukolov, “Development of the model of segregation of particles undergoing granular flow down through slant chute,” Powder Technology, 56, 211-218 (1998).

    Article  Google Scholar 

  5. V. N. Dolgunin, A. A. Ukolov, and O. O. Ivanov, “Segregation kinetics of particles with different roughness and elasticity under a rapid gravity glow of a granular medium,” Theoretical Foundations of Chemical Engineering, 43, No. 2, 187–196 (2009).

    Article  CAS  Google Scholar 

  6. V. N. Dolgunin, A. N. Kudy, A. A. Ukolov, and M. A. Tuev, “Rapid granular flows on a vibrated rough chute: behavior patterns and interaction effects of particles,” Chemical Engineering Research and Design, 122, 22–32 (2017).

    Article  CAS  Google Scholar 

  7. V. N. Dolgunin, A. N. Kudy, and M. A. Tuev, “Mechanisms and kinetics of gravity separation of granulated materials,” Usp. Fiz. Nauk, 190, No. 6, 583–604 (2020).

    Article  Google Scholar 

  8. V. N. Dolgunin, V. Ya. Borschov, and P. Ivanov, “Rapid gravity flow of a granular medium,” Theoretical Foundations of Chemical Engineering, 39, No. 5, 548–554 (2005).

    Article  CAS  Google Scholar 

  9. G. I. Marchuk, Methods of Numerical Mathematics, Applications of Mathematics, V. 2, Springer-Verlag, New York−Heidelberg−Berlin (1975).

Download references

Author information

Authors and Affiliations

  1. Tambov State Technical University, Tambov, Russia

    V. N. Dolgunin, A. N. Kudi & A. G. Tarakanov

Authors
  1. V. N. Dolgunin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. N. Kudi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. G. Tarakanov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. N. Dolgunin.

Additional information

Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 58, No. 1, pp. 3−7, January, 2022.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dolgunin, V.N., Kudi, A.N. & Tarakanov, A.G. Mechanisms and Kinetics of Separation of Impurities of Large and Small Particles in Gravity Flow of Granular Material. Chem Petrol Eng 58, 3–12 (2022). https://doi.org/10.1007/s10556-022-01047-7

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10556-022-01047-7

Keywords

Search

Navigation