INFLUENCE OF ROCK PHYSICAL AND MECHANICAL PROPERTIES ON THE ROCK RESISTANCE TO PNEUMATIC TRANSPORTATION BY THE PIPELINE SYSTEMS

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 120

UDC622.648.6:621.867.8

Authors:

PonomarenkoS.N., Ph.D. (Tech), Senior Researcher

(IGTM NAS of Ukraine)

Abstract:

The paper studies influence of the rock physical and mechanical properties on the rock resistance to motion in the pneumatic pipeline systems.

The rock resistance to the motion in the pneumatic pipeline systems was studied by an integral coefficient of resistance in which resistance of the solid phase and air phase of the air mixture is summarized as the mixture was moving in the transporting pipeline. The dependences are formulated between integral coefficient of the resistance to motion and mode of transportation, parameters of transporting pipeline and air mixture which moves in this pipeline. Findings on dependence between a slip coefficient of different phases of the air mixture and resistance to motion of the rocks with different physical and mechanical properties are presented for each particular type of the transporting pipelines. Analysis of the obtained results has shown that rock bulk density has less significant influence on the rock resistance to be transported by the pneumatic pipeline than shape of the rock particles and rate of the rock aeration. The findings can be used for determining specific energy capacity of the pneumatic transporting pipeline systems for mining technologies.

Keywords:

integral coefficient of resistance, air mixture, rock, pneumatic transport, pipeline, slip ratio of the phases.

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About the author:

Ponomarenko Sergei Nikolaevich, Candidate of Technical Sciences (Ph.D), Senior Researcher, 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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