Ponomarenko S., Riabtsev O., Kabakova L. Consideration of pipeline ascending sections during the rock movement in pneumatic transport systems
- Details
- Parent Category: Geo-Technical Mechanics, 2025
- Category: Geo-Technical Mechanics, 2025, Issue 174
Geotech. meh. 2025, 174, 5-20
Consideration of pipeline ascending SECTIONS DURING THE ROCK MOVEMENT IN PNEUMATIC TRANSPORT SYSTEMS
M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine
UDC 622:531.001.3
Language: English
Abstract. Keeping mining waste in the mine and using it to backfill the mined-out space can solve environmental problems and mining engineering tasks, primarily rock pressure control. One way to solve these problems is to use a pneumatic backfilling method, which makes it possible to achieve a high density of the filling massif. The subject of the research is the physical processes in pipeline pneumatic transport systems with ascending sections. The topic of the work is to evaluate the resistance of transport pipeline elements with ascending sections to the movement of air mixture and the influence of the angle of inclination on the characteristics of the air mixture flow at the outlet of the pneumatic transport system. The purpose of the work is to obtain a determining equation that describes the movement of the air mixture through a pipeline of constant diameter, taking into account the local hydraulic resistances in certain sections of the pipeline that change the direction of the air mixture. The determining equation contents the angle of inclination of the transport pipeline axis to the horizon w> 0°, so this equation can be adapted to the conditions of transportation in a horizontal (w= 0°) or vertical (w= 90°) direction. The methodology of the work consists in applying a phenomenological approach to determining the resistance forces of the two-phase flow of “gas – solid particles” in a cylindrical pipeline. The influence of the resistance characteristics of straight and curved pipeline elements on the technological and design parameters of the pneumatic transport system is taken into account by the additivity of these parameters for each individual element. The scope of application of the results is the development of the scientific foundations of the theory of two-phase “gas – solid particles” flow in pipeline systems for pneumatic transport of dispersed materials in a dense phase. The implementation of the research results in engineering methods for calculating existing and new pneumatic transport systems will increase their efficiency in technological processes for moving dispersed materials at mining and metallurgical enterprises and in other industries.
Keywords. Pneumatic transport system, resistance coefficient, transport pipeline, ascending section, air mixture.
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About the authors
Ponomarenko Serhii, Doctor of Technical Sciences, Senior Researcher, Senior Researcher in Department of Mechanics of Vibratory Transporting Systems and Complexes, M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine (IGTM of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. (Corresponding author), ORCID 0000-0003-1346-7008
Riabtsev Oleh, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in Department of Mechanics of Vibratory Transporting Systems and Complexes, M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine (IGTM of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID 0000-0002-9022-4328
Kabakova Liudmyla, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in Department of Mechanics of Vibratory Transporting Systems and Complexes, M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine (IGTM of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID 0000-0001-9356-2050