IMPACT OF AIR-MIXTURE CHARACTERISTICS ON TECHNOLOGICAL PARAME-TERS OF PNEUMATIC TRANSPORTATION BY STOWAGE PLANTS OF THE EJEC-TOR TYPE

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, Issue 109

UDC 622.648

Author

S.N. Ponomarenko, Ph.D. (Tech.), Senior Reseacher

(IGTM NAS of Ukraine)

Abstract:

The paper presents new dependencies in calculations of parameters for the rock pneumatic transporting by stowage plants of the ejector type. Theoretical part of the study focused on peculiar interactions between the air mixture flows in mixing zone of the annular ejector. Dependencies of basic technological parameters of pneumatic transport on characteristics of the air mixture are stated for the plants of ejector type. Findings on impact of the rock properties on technological parameters of the rock pneumatic transporting by stowage plants with annular ejectors are presented. The article also presents a new method for describing the air mixture flowing in the pneumatic stowage plant with annular ejector. The method is based on the use of three factors: integral coefficient of resistance, coefficient of energy dissipation in compressed air flow and degree of this flow expansion. The findings can be used for calculating and designing pneumatic stowage plants with annular ejector for different mining technologies.

Keywords:

 air mixture, rocks, ejector, pneumatic transport.

References:

1. Poturayev, V.N., Bulat, A.F., Voloshin, A.I., Ponomarenko, S.N. and Voloshin, A.A. (2001), Mekhanika vibratsionno-pnevmaticheskikh mashin ezhektornogo tipa [Mechanics vibration-pneumatic machine the ejector type], Naukova dumka, Kiev, Ukraine.

2. Voloshin, A.I., Koval A.I. and Ponomarenko, S.N. (2011), "Prospects of the use of the ducted stowing machines in technologies of mining production", Coal of Uraine, vol. 4, pp. 40 – 44.

3. Voloshin, A.I. and Ponomaryev, B.V. (2001), Mekhanikai pnevmotransportirowaniya sypuchikh materialov [Mechanics the pneumatic transport of bulk materials], Naukova dumka, Kiev, Ukraine.

4. Ponomarenko, S.N. (2012), "Determination of losses of energy  on mixing of blasts in a transport pipeline of vibro-pneumonic-transport machines", Geotekhnicheskaya Mekhanika [Geo-Tecnical Mechanics, no.101, pp. 193–198.

About the author

Ponomarenko Sergei Nikolaevich, Candidate of Technical Sciences (Ph.D), Senior Researcher of department of vibropnevmoatic Transport Systems and 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.

 

 

 

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