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Surface adhesion barrier management in dust suppression at mining enterprises

The effect of dust suppression at mining enterprises depends significantly on overcoming the energy barrier during the collision of liquid droplets with dust particles, and the transfer of the system «solid-liquid» into a more stable state, i.e. it is determined by the degree of coagulation and the ability of liquid droplets to capture dust particles. Under the conditions of inertial orthokinetic hydrovortex heterocoagulation and the change in the angular velocity of a liquid droplet rotation  , one can control the critical value of Stokes number reducing the inhibitory surface adhesion barrier. The attached vortex caused by the rotation of a liquid droplet reduces the static pressure in the zone of its contact with a dust particle, thus, increasing the wetting angle up to , which contributes to the reduction in aerodynamic energy barrier. The experiments verified the criterial equation of hydrovortex coagulation to be applied in order to ensure the identity of the results of simulation tests and real physical processes of dust suppression. The results of calculations and experiments using the proposed mathematical model showed high efficiency of hydrovortex heterocoagulation enabling to reduce water consumption by 25%, reduce the minimum size of absorbed particles of coal dust to 5·10–7 m, to increase the efficiency of dust suppression up to 99% in comparison with traditional high-pressure hydrodedusting. The use of theoretical and experimental studies enables to improve the methods for designing hydrovortex injectors, which are the main element of dust precipitators utilized in the fuel and energy complex and in manufacturing construction materials.

Keywords: dust suppression, inertial orthokinetic hydrovortex heterocoagulation, aerodynamic, surface adhesive, barriers, Stokes number, Reynolds number.
For citation:

Makarov V. N., Ugolnikov A. V., Makarov N. V., Filatov A. M. Surface adhesion barrier management in dust suppression at mining enterprises. MIAB. Mining Inf. Anal. Bull. 2022;(11-2):114-125. [In Russ]. DOI: 10.25018/0236_1493_2022_112_0_114.

Acknowledgements:
Issue number: 11
Year: 2022
Page number: 114-125
ISBN: 0236-1493
UDK: 622.23.05:622.807
DOI: 10.25018/0236_1493_2022_112_0_114
Article receipt date: 16.06.2022
Date of review receipt: 01.10.2022
Date of the editorial board′s decision on the article′s publishing: 10.10.2022
About authors:

V.N. Makarov1, Dr. Sci. (Eng.), Professor, e-mail: uk.intelnedra@gmail.com, ORCID ID: 0000-0002-3785-5569,
A.V. Ugolnikov1, Cand. Sci. (Eng.), Assistant Professor, Head of Chair, e-mail: ugolnikov@yandex.ru, ORCID ID: 0000-0002-8442-4841,
N.V. Makarov1, Cand. Sci. (Eng.), Assistant Professor, Head of Chair, e-mail: mnikolay84@mail.ru, ORCID ID: 0000-0001-7039-6272,
A.M. Filatov, Head of Mining Department, JSC Seversky Granite Quarry, 620920, Severka, Ekaterinburg, Russia,
1 Ural State Mining University, 620144, Ekaterinburg, Russia.

 

For contacts:

A.V. Ugolnikov, e-mail: ugolnikov@yandex.ru.

Bibliography:

1. Skopintseva O. V. Scientific substantiation of the integrated method of reducing the dust and gas hazards of mining sites of coal mines. MIAB. Mining Inf. Anal. Bull. 2011, no. S7, pp. 315—325. [In Russ].

2. Mokhnachuk I. I. Security Issues in Coal Mining Enterprises. Ugol'. 2008, no. 2, pp. 21—26. [In Russ].

3. Valiev N. G., Stradanchenko S. G., Maslennikov S. A., Golodov M. A., Armeiskov V. N. Environmental protection of a coal-mining region. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal. 2021, no. 7, pp. 80—91. [In Russ].

4. Korshunov G. I., Kornev A. V., Erzin A. K., Safina A. M. Investigation of the features of interaction of solutions of surfactants with coal dust. MIAB. Mining Inf. Anal. Bull. 2015, no. 3, pp. 75—80. [In Russ].

5. Frolov A. V., Telegin V. A., Sechkerev Y. A. Basics of hydrodusting. Bezopasnost' zhiznedeyatel'nosti. 2007, no. 10, pp. 1—24. [In Russ].

6. Lebetski K. A. Romanchenko S. B. Pylevaya vzryvoopasnost gornogo proizvodstva [Dust explosion hazard of mining production], Moscow, Gornoye delo, 2012, 463 p.

7. Makarov V. N., Makarov N. V., Ugol’nikov A.V., Sverdlov I. V. Energy-efficient technology of technogenic accidents containment in mines based on a numerically simulated model of hydro vortex coagulation. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal. 2019, no. 2, pp. 118—127. [In Russ]. DOI: 10.21440/0536-1028-2019-2-118-127.

8. Pelevin A. E., Sytykh N. A. The features of classification in hydrocyclones in the course of titanium magnetite ore grinding. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal. 2021, no. 1, pp. 74—84. [In Russ]. DOI: 10.21440/0536-1028-2021-1-74-84.

9. Torshizi S. A. M., Benisi A. H., Durali M. Numerical optimization and manufacturing of the impeller of a centrifugal compressor by variation of splitter blades. ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, Seoul, 2016, рр. 1—7. DOI: 10.1115/ GT2016-57105.

10. Makarov V. N., Kosarev N. P., Makarov N. V., Ugol’nikov A. V., Lifanov A. V. Effective localization of coal dust explosions using hydro vortex coagulation. Vestnik Permskogo natsionalnogo issledovatelskogo politehnicheskogo universiteta. Geologiya. Neftegazovoe i gornoye delo. 2018, vol. 18, no. 2, pp. 178—189. [In Russ]. DOI: 10.15593/2224-9923/2018.4.7.

11. Makarov V. N., Ugolnikov A. V., Materov A. Yu., Makarov N. V., Tauger V. M. Modified criterion equation of hydro vortex dust suppression in coal mines. MIAB. Mining Inf. Anal. Bull. 2019, no. 7, pp. 53—61. [In Russ]. DOI: 10.25018/0236-1493-2019-07-0-53-61.

12. Mao Y. F. Numerical study of correlation between the surge of centrifugal compressor and the piping system. Ph. D. Thesis. Xian Jiaotong University, Xian. 2016, 174 p.

13. Liu X., Qian J., Wang E., Zhang Z. Study of integrated vortex ventilation and dust removal system in mechanized excavation face. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering. 2021, vol. 235, no. 1, pp. 42—51. DOI: 10.1177/0954408920936795.

14. Wu D., Yin K., Yin Q., Zhang X., Cheng J., Ge D., Zhang P. Reverse circulation drilling method based on a supersonic nozzle for dust control. Applied Sciences. 2017, vol. 7, no. 1, pp. 5—20. DOI: 10.3390/app7010005.

15. Torshizi S. A. M., Benisi A. H., Durali M. Multilevel optimization of the splitter blade profile in the impeller of a centrifugal compressor. Scientia Iranica. 2017, vol. 24, no. 2, pp. 707— 714. DOI: 10.24200/sci.2017.4055.

16. Wang P. Multi-objective design of a transonic turbocharger compressor with reduced noise and increased efficiency. Ph. D. Thesis. UCL University, London, 2017. 213 р.

17. Kosarev N. P., Makarov V. N., Ugol’nikov A.V., Makarov N. V., Dyldin G. P. Mine aerology of dust aerosols under conditions of hydro-vortex coagulation. News of the Ural State Mining University. 2020, no. 4(60), pp. 155—165. [In Russ]. DOI: 10.21440/2307-2091-20204-155-165.

18. Bautin S. P., Krutova I. Yu., Obukhov A. G. Twisting of a fire vortex subject to gravity and Coriolis forces. High Temperature. 2015, vol. 53, no. 6, pp. 928—930. DOI: 10.7868/ S0040364415050038.

19. Novakovskiy N. S., Bautin S. P. Numerical simulation of shock-free strong compression of 1D gas layer's. Journal of Physics: Conference Series. 2017, vol. 894, no. 1, article 012067. DOI: 10.1088/1742-6596/894/1/012067.

20. Davydov S. Y., Valiev N. G., Tauger V. M. Effect of the flow of transported bulk material on design features of a belt conveyor. Refractories and Industrial Ceramics. 2019, vol. 60, no. 1, pp. 10—13. DOI: 10.1007/s11148-019-00301-5.

21. Ugolnikov A. V., Makarov N. V. Application of automation systems for monitoring and energy efficiency accounting indicators of mining enterprises compressor facility operation. Journal of Mining Institute. 2019, vol. 236, pp. 245—248. DOI: 10.31897/PMI.2019.2.245.

22. Tauger V., Valiev N., Volkov E., Simisinov D., Adas V. Remote-controlled robotic complex for underground mining. E3S Web of Conferences. 2020, vol. 177, article 03006. DOI: 10.1051/e3sconf/202017703006.

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