SPECIFICITY OF THE AIR MIXTURE FLOWING IN THE FEED SECTOR OF THE VIBRO-PNEUMATIC TRANSPORT SYSTEMS WITH ANNULAR EJECTORS

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Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 114

UDC 622.648.6:621.867.8:621.694.2

Authors:

A.I. Voloshyn, Сor. member NASU,

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

Y. N. Ignatovich, Ph. D., Senior Researcher

 (IGTM NAS of Ukraine)

Abstract.

This article studies parameters and modes of air mixture flowing in the feedsector of pipeline systems in the pneumatic transport with annular ejector.

Defining characteristics of interaction between air flows in the mixing sector of the annular ejector are shown. Synchronous and asynchronous modes of air mixture motion in the feedsector of the vibro-pneumatic transport systems with an annular ejector is analyzed.  Dependence was established for determining coefficient of kinetic energy dispersion of the air mixture with taking into account technological and operational parameters of this type equipment.

This article proposes a new approach for determining energy losses in different parts of the feedsector of the vibro-pneumatic transport systems with an annular ejector. Impact of the different modes of air mixture flowing in the feedsector of the vibro-pneumatic ejector-type transport systems on the energy loss of the air streams is shown.

The findings can be used for calculating and designing feeding equipment for the pneumatic pipeline systems including equipment for pneumatic stowing of the mine goaf.

Keywords:

air mixture, loose material, annular ejector, pneumatic transport, energy dissipation coefficient.

References:

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

2. Voloshyn, 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 Ukraine, vol. 4, pp. 40 – 44.

3. 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-Technical                   Mechanics], no.101, pp. 193–198.

\About the authors:

Voloshyn Alexei Ivanovich, Doctor of Technical Sciences (D. Sc.), Professor, Corresponding Member of the NAS of Ukraine, Deputy Director of the institute, M.S. Polyakov Institute of Geotechnical Mechanics of 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. .

Ponomarenko Sergei Nikolaevich, Candidate of Technical Sciences (Ph. D.), Senior researcher of department of vibropnevmotransportation systems and complexes, M.S. Polyakov Institute of Geotechnical Mechanics of 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. .

Ignatovich Yuriy  Nikolaevich, Candidate of Technical Sciences (Ph. D)., Senior Researcher, Senior Researcher of department of vibropnevmotransportation systems and complexes, M.S. Polyakov Institute of Geotechnical Mechanics of the National Academy of Science of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine,

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