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

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, 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:

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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.

 

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