PARAMETERS OF STRUCTURED SUSPENSION SOLID PHASE TAKEN INTO ACCOUNT IN THE OSWALD-RAYNER AND BINGAME-SHVEDOV FORMULAS

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 123

UDC 532.584.002.612:622.33

Authors:

Semenenko E.V., D. Sc. (Tech.), Senior Researcher (IGTM NAS of Ukraine)

Demchenko T.D. Sc. of. Master (IGTM NAS of Ukraine)

Abstract.

This article focuses on studying influence of rheological properties of the structured suspension solid phase and on specifying interdependence between parameters of the Oswald-Rayner and Bingam-Shwedov rheological laws. Results of domestic and foreign experts’ studies were selected for the analysis, which state a possibility to apply the Oswald Rayner and Bingam-Shwedov rheological laws for describing rheological properties of the structured suspension in geotechnical systems. The article analyzes experimental results on rheological characteristics of the structured suspensions of different coal grades. It is for the first time when a relationship was established between the constants of the Oswald-Rayner rheological law and rheological characteristics used in the Bingam-Shwedov formula, as well as dependence of effective viscosity and initial shear stress of the structured coal suspensions on volatile substances outlet to the ash mass in the solid fraction particles.

Keywords:

structured suspension, effective viscosity, rheological characteristic, coal.

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About the authors:

Semenenko Evgeniy Vlsdimirovich, 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 Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Demchenko TatianaDmitrivna, Master of Science, 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. .

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