MODELING OF A PROCESS OF FLUID PENETRATION INTO THE SOLID PARTICLES AT THE COAL PROCESSING

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 112

UDC 622.7-913.3.001.57

Authors:

E.V. Semenenko,D. Sc. (Tech.), Senior Researcher,

I.Y. Kozar, Master of Science,

K.K. Podolyak, Doctoral Student

(IGTM, NAS of Ukraine)

S.A. Rizhova, Master of Science,

(SE «Dneprogiproshaht»)

Abstract.

In this paper, a promising use of coal-water fuel in Ukraine is discussed. Two mathematical models of a soaking process in the coal agglomerate completely immersed into the fluid are considered. In the first mathematical model, it was assumed that one part of the agglomerate was filled with compressed gas and another part (outer layer) − with filter liquid. In the second model, the coal agglomerate was under the impact of external electric field, and gas compression effect was neglected. As a result of the research, dependences were specified for determining time period for and degree of coal agglomerate soaking. Linear approximation of the degree of coal agglomerate soaking depending on duration of the process was shown. The obtained dependences allow to validate parameters of technologies for the coal-water fuel preparation with the prior coal mixing and softening by surfactants and with the help of  electrohydraulic impact.

Keywords:

coal agglomerate, soaking, mathematical model.

References:

1. Smetanina, T. (2012), “The Europeans decided to investments”, Kommentarii [Comments], no. 16, pp. 18.

2. Semenenko, E.V. and Kozar, I.Y. (2013), “Prospects for the application of new technology of preparation and transportation of coal-water fuel”, Sb. dokladov ХІ Mezhdunarodnoy nauchno-tehnicheskoy konferentsii [Proceedings of the 11th International scientific and technical conference], Tehnologicheskoe oborudovanie dlya gornoy i neftegazovoy promyishlennosti [Technological equipment for the mining and oil-and-gas industries], Yekaterinburg, Russia, 4-5 April, pp. 20-23.

3. Krut, O.A. (2002), Vodovugilne palyivo [Coal-water fuel], Naukova dumka, Kiev, Ukraine.

4. Baranov, S.I., Neronin, N.K. and Samoylenko, G.V. (1984), “Intensification of coal solubility in organic solvents”, Izmenenie svoystv uglya pri himicheskih i fizicheskih vozdeystviyah [Changing the properties of coal to chemical and physical influences], Institute of Physical-Organic Chemistry and Coal Chemistry, pp. 102-110.

5. Poturaev, V.N. and Mineev, S.P. (1993), Pulsatsionnyie i volnovyie effektyi v gornom massive [Pulsation and wave effects in massif], Naukova dumka, Kiev, Ukraine.

6. Bulat, A.F., Sofiyskiy, K.K. and Silin, D.P. (2003), Gidrodinamicheskoe vozdeystvie na gazonasyischennyie ugolnyie plastyi [Hydrodynamic effect on gas-saturated coal beds], Dnepropetrovsk, Ukraine.

7. Semenenko, E.V. (1998), “Non-stationary filtration and disintegration problems in hydraulic transport processes of bulk materials”, Ph.D. Thesis, Physical processes of mining, M.S. Polyakov Institute of Geotechnical Mechanics under NAS of Ukraine, Dnepropetrovsk, Ukraine.

8. Semenenko, E.V. (1997), “The influence of hydraulic transport parameters on soakingprocess of transported porous agglomerates”, Geotehnicheskaya mehanika [Geo-Technical Mechanics], no. 2, pp. 145-148.

9. Semenenko, E.V., Kozar, I.Y. and Podolyak, K.K. (2013), “Mathematical modeling of soakingprocess of coal agglomerates”, Sb. dokladov Mezhgosudarstvennoy nauchno-metodicheskoy konferentsii [Proceedings of the Interstate scientific conference], Problemyi matematyichnogo modelyuvannya [Problems of mathematical modeling], Dniprodzerzhynsk State Technical University, Dniprodzerzhynsk, Ukraine, 5-7 June, pp. 83-85.

10. Korn, G. and Korn, T. (1973), Spravochnik po matematike dlya nauchnyih rabotnikov i inzhenerov [Mathematical handbook for scientists and engineers], 2nd ed., Translated by Aramanovicha, I.G., Berezman, A.M. and Vaynshteyn, I.A., in Aramanovicha, I.G. (ed.), Nauka, Moscow, Russia.

11. Heyfets, L.I. and Nesmak, A.K. (1982), Mnogofaznyie protsessyi v poristyih sredah [Multiple-phase processes in porous mediums], Himiya, Moscow, Russia.

About the authors:

Semenenko Evgeniy Vladimirovich, Doctor of Technical Sciences (D. Sc.), Senior Researcher, Head of Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Kozar Iryna Yurevna, Engineer in Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Podolyak Konstantin Konstantinovich, Doctoral Student, Engineer in Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Rizhova Svetlana Alekseevna, engineer of department of ensuring computer technologies, State Enterprise "Dneprogiproshaht"under the Ministry of Energy and coalindustries of Ukraine(SE «Dneprogiproshaht»), Dniepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

 

• < Prev
• Next >