Kiriia R., Smirnov A., Novikov L., Saidova L. Influence of open pit depth on the choice of conveyor transport type

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Parent Category: Geo-Technical Mechanics, 2024
Category: Geo-Technical Mechanics, 2024, Issue 168

Geoteh. meh. 2024, 168, 97-104

https://doi.org/10.15407/geotm2024.168.097

  

INFLUENCE OF OPEN PIT DEPTH ON THE CHOICE OF CONVEYOR TRANSPORT TYPE

1Kiriia R.,1Smirnov A., 1Novikov L., 2Saidova L.

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

2Navoi Branch of the Academy of Sciences of the Republic of Uzbekistan

UDC 622.682.012.3

Language: English

Abstract. Surface mining operations lead to an increase in the depth of open pits. As a result, there is a need to choose a conveyor transport, which allows transporting rock mass to a great height at high lifting angle. Conveyors with deep trough belts and tubular and steep incline belt conveyors are used to transport rock mass along curved and vertical routes. The use of conveyors adapted to the conditions of deep open pits allows to reduce the length of the route and to cut capital expenditures and energy costs for transporting rock mass. The main difference the existing types of steep incline conveyors is the way the cargo on the belt is kept from spontaneously moving downwards. In this work, the main types of steep incline conveyors, their advantages and disadvantages are considered. It is noted that in order to achieve maximum efficiency in transporting large pieces of rock mass in deep open pits, it is advisable to use double-circuit type "sandwich" belt conveyors, and partitions on the cargo belt. Steep incline conveyors and belts developed by Flexowell (USA), Savatech (Ukraine), Metso Outotec (Finland), ContiTech Transportbandsysteme GmbH (Germany), and steep incline conveyor with a double-circuit belt (Uzbekistan) are considered. Recommendations for choosing the type of steep incline conveyor are given. The main technical and technological parameters of tubular conveyors, which are currently in operation, are considered. It is noted that the maximum angle of inclination of tubular belt conveyors for transporting bulk cargoes depends on the coefficient of internal friction of the cargo, the coefficient of friction of the cargo on the belt and the rate of the belt filling. The ranges of change in the maximum angles of inclination of tubular conveyors are determined. Based on the analysis of the technical and technological parameters of the maximum angles of inclination of a tubular conveyor and a belt hold-down conveyor, it was found that the maximum angle of inclination of the hold-down conveyor is 5–10degrees higher than the maximum angle of inclination of the tubular conveyor. However, the cost and design complexity of the hold-down conveyor is higher than that of a tubular conveyor. It is recommended to use tubular conveyors on sections of the route with an inclination angle of up to 30 degrees.

Keywords: open pit, steep incline conveyer, belt, angle of inclination, cargo.

REFERENCES

1. Babiy, K., Shevchenko, A. and Ikol, A. (2014), “High-angle conveyors in the mining industry and their possible use in deep quarries of Krivbas”,Geo-Technical mechanics, no. 118, pp. 114–129, available at: http://dspace.nbuv.gov.ua/handle/ 123456789/137449, (accessed 1 April 2024).

2. Henin, H. and Stepankina, I. (2015), “The use of steeply inclined conveyors in the schemes of cyclic-flow technology of deep open pits”, Materily Mizhnarodnoi naukovo-tekhnichnoi konferentsii: Stalyi rozvytok promyslovosti ta suspilstva [Materials of the International Scientific and Technical Conference: Sustainable development of industry and society], KRNU, Kryvyi Rih, Ukraine, 20–22 May, P. 206, available at: https://zenodo.org/record/5803791/files/2015_tom1.pdf, (accessed 1 April 2024).

3. Savatech Ukraine (2024), “SAVA conveyor belts”, available at: https://savatech.com.ua, (accessed 1 April 2024).

4. Metso (2024), “Lokolink™ mobile conveyor”, available at: https://www.metso.com/portfolio/lokolink/, (accessed 1 April 2024).

5. Continental the Future in Motion (2024), available at: https://www.mogroup.com, (accessed 1 April 2024).

6. Istablaev, F. and Dustova, M. (2020), “Unique steeply inclined conveyor at “Muruntau” open pit mine”, Nauchnaja konferencija, posvjashhennaja 100-letiju so dnja rozhdenija geologa, akademika Ibragima Hamroboeva [Scientific conference dedicated to the 100th anniversary of the birth of geologist, academician Ibragim Hamroboev], Navoi Branch of the Academy of Sciences of the Republic of Uzbekistan, Navoi, Uzbekistan, pp. 108–118, available at: https://doi.org/10.13140/RG.2.2.36621.26082, (accessed 1 April 2024).

7. Chetverik, M., Babij, E., Ikol, A. and Tereshhenko, V. (2010), “Prospects of application of steeply inclined conveyors at cyclic-flow technology of mining works at open-pit mines of Kryvbas region”, Metallurgicheskaja i gornorudnaja promyshlennost', no. 5, pp. 94–98, available at: https://www.metaljournal.com.ua/5-263-2010/, (accessed 1 April 2024).

8. Babiy, Е.V. (2009), “Application of conveyors of the steep lifting at technology of preliminary concentration of ore in quarries”,Geo-Technical mechanics, no. 81, pp. 17–23, available at: http://dspace.nbuv.gov.ua/bitstream/handle/123456789/ 32851/03%20-%20Babiy.pdf (accessed 27 June 2024).

9. Kiriia, R.V., Zhihula, T.I. and Zhelyazov, T. (2019), “Determining limiting angle of inclinationof tubular belt conveyor” Geo-Technical mechanics, no. 149, pp. 198–208. https://doi.org/10.15407/geotm2019.149.198

 

About the authors:

Kiriia Ruslan,Doctor of Technical Sciences (D.Sc.), Senior Researcher, Senior Researcher in Department of Geomechanics of Mineral Opencast Mining Te/chnology, 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 0000-0003-4842-7188

Smirnov Andrii, Candidate of Technical Sciences (Ph.D.), Senior Researcher in Department of Geomechanics of Mineral Opencast Mining 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

Novikov Leonid, Candidate of Technical Sciences (Ph.D.), Researcher in Department of Geomechanics of Mineral Opencast Mining 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 0000-0002-1855-5536

Saidova Lola, Doctor of Philosophy (Ph.D.), Senior Researcher of the Navoi Branch of the Academy of Sciences of the Republic of Uzbekistan, Navoi, Uzbekistan, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID 0000-0001-6236-0288

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