RESEARCHES OF CONDITIONS FOR PREVENTING RESONANT PHENOMENA IN CASE OF NON-STATIONARY MODES OF HYDROTRANSPORTATING SYSTEM OPERATION

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 118

UDC 622.648.2.002.5-752

Authors:

Vitushko O.V., D. Sc. (Tech.) (LLC «Shahtostroymontazh» Mine Vilhova Zahidna)

Dziuba S.V., Ph.D. (Tech.), Senior Researcher (IGTM NAS of Ukraine)

Abstract.

Within the framework of study of conditions ensuring reliable operation of process equipment in the mining enterprises resonance characteristics were specified for hydraulic systems and underground hydraulic systems in particular which are used by mineral mining and processing technologies. Main methods and facilities for protecting the hydraulic systems against hydraulic impact and ensuring their safe operation were analyzed. The article describes one of the effective methods which reduces elastic properties of the slurry transported by the pipeline. Purpose of the method is to reduce slurry elastic modulus by injecting air into the slurry flow, i.e. aeration, and to reduce elastic modulus of the hydrotransporting system by changing of elastic elements located along the main pipeline. It is stated that the bigger is a size of solid materials transported by the pipeline with small diameter the greater is impact pressure.

Keywords:

pressure hydrotransporting systems, non-standard processes, underground hydrotechnical systems, resonance phenomena.

References:

1. Bulat, A.F., Vitushko, O.V.and Semenenko, E.V. (2010), Modeli elementov gidrotekhnicheskih system gornykh predpriyatiy [Models of elements of hydrotechnical systems of the mountain enterprises], Gerda, Dnepropetrovsk, Ukraine.

2. Baranov, Yu.D., Bljuss, B.A., Semenenko, E.V. and Shurigin, V.D. (2006), Obosnovanie parametrov irezhimov raboty system gidrotransporta gornykh predpriyatiy [Justification of parameters and working hours of systems of hydrotransport of the mining enterprises] ,Novaya ideologiya, Dnepropetrovsk, Ukraine.

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6. Blyuss, B., Semenenko, Eu. and Nykyforova, N., (2008), “The calculation procedure of hydrotransport parameters of bulk solids using hydrodynamically active additives solutions” , Papers presented at the 14^th International Conference on Transport and Sedimentation of Solid Particles, Saint Petersburg, Russia, pp. 41 – 48.

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About the authors:

Vituhko Oleg Viktorovich, Doctor of Technical Sciences (D.Sc.), Main engineer of mine LLC «Shahtostroymontazh» Vilhova Zahidna, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Dziuba Sergej Vladimirovich, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in  Department of Geodynamic System and Vibration Technologies, 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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