Kiriia R., Smirnov А., Zhyhula Т., Mishchenko Т., Kuttybayev A. Development of methods for calculating the parameters of steeply inclined belt conveyors used in open pit mining

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Parent Category: Geo-Technical Mechanics, 2024
Category: Geo-Technical Mechanics, 2024, Issue 169

Geoteh. meh. 2024, 169, 66-73

 

DEVELOPMENT OF METHODS FOR CALCULATING THE PARAMETERS OF STEEPLY INCLINED BELT CONVEYORS USED IN OPEN PIT MINING

 1Kiriia R., 1Smirnov А., 1Zhyhula Т., 1Mishchenko Т., 2Kuttybayev A.

1M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine
2Satbayev University

UDC [622.2/.8.002.5:539.3]:005.2

Language: English

Abstract. As the depth of quarries grows and the overall angle of inclination of the sides increases, the transport support of stripping and mining operations becomes especially important due to the problems of using road transport. In this regard, steeply inclined conveyors (SIC) are particularly relevant for deep quarries. Steeply inclined belt conveyors are conveyors with an angle of inclination of more than 30 degrees, the main types of them are: conveyors with partitions on the belt, with pockets on the belt, double-circuit with a clamping belt, tubular conveyors. The methods for calculating parameters of various types of steeply inclined conveyors, which can be used in open-pit mining, namely the parameters of the drive and the design of the framework were developed. The calculation of the power of the SIC drive depending on the height of the lift and the angle of inclination of the conveyor is presented. It is shown, that the power of the SIC drive is directly proportional to the lifting height, while the value of the SIC inclination angle has a small effect on the drive power. Tubular belt conveyors (TBC) are one of the most promising types of conveyors. However, due to the complex processes, which occur during the operation of TBC, when a tubular belt with a load moves along roller supports, TBC failures and their consequences differ from those of other conveyors. Recommendations for selecting the distance between roller supports on the linear and curved sections of the TBC route were developed. The calculations showed that the greatest load on the rollers of a tubular conveyor falls on the lower side and central rollers. At the same time, the maximum loads on the rollers in the curved section of the tubular conveyor increase by 20%, and the average service life in the curved section of the framework decreases by 43%, when a distance between the roller supports is 0.5 m. Therefore, it is recommended to reduce the distance between the roller supports on the curved section of the tubular conveyor by four times compared to the distance between the roller supports on the linear section of the conveyor framework. TBC failures can occur as a result of the tubular belt scrolling, which leads to dusting and shedding of the load. These phenomena can be prevented by selecting the design parameters of the TBC. The formula was obtained for calculating the maximum distance between the roller support of the TBC, which will not lead to the divergence of the sides of the tubular belt if the central roller of the first roller support is rotated by certain angle.

Keywords. steeply inclined belt conveyor, drive power, roller service life, distance between roller supports.

 

REFERENCES

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About the authors:

Kiriia Ruslan, Doctor of Technical Sciences (D. Sc), Senior Researcher, Principal Researcher in Department of Geomechanical Basis of Open-Pit Technology, 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. , ORCID0000-0003-4842-7188

Smirnov Andrii, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in Department of Geomechanical Basis of Open-Pit Technology, 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 0000-0003-2827-521X

Zhyhula Tetiana, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in Department of Geomechanical Basis of Open-Pit Technology, 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 0000-0003-4954-0844

Mishchenko Tamara, Master of Science, Senior Specialist in Department of Geomechanical Basis of Open-Pit Technology, 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 0000-0002-3993-3639

Kuttybayev Aidar, Candidate of Technical Sciences, Associate Professor, Department of Mining Engineering, Satbayev University, Almaty, Kazakhstan, a.kuttybayev@satbayev.university, ORCID 0000-0003-3997-8324