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Analysis of Reasons for Reduced Strength of Multiply Conveyor Belt Splices

Author

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  • Mirosław Bajda

    (Faculty of Geoengineering, Mining and Geology, Wroclaw University of Science and Technology, Na Grobli 15 St., 50-421 Wrocław, Poland)

  • Monika Hardygóra

    (Faculty of Geoengineering, Mining and Geology, Wroclaw University of Science and Technology, Na Grobli 15 St., 50-421 Wrocław, Poland)

Abstract

Belt conveyors are used for the transportation of bulk materials in a number of different branches of industry, especially in mining and power industries or in shipping ports. The main component of a belt conveyor is its belt, which serves both as a support for the transported material along the conveyor route and as an element in the drive transmission system. Being crucial to the effective and reliable operation of the conveyor, the belt is also its most expensive and the least durable element. A conveyor belt comprises a core, covers and edges. A multiply textile belt, in which the core is constructed of synthetic fibers such as polyamide, polyester or aramid, is the oldest and still the most commonly used conveyor belt type. The plies are joined with a thin layer of rubber or another material (usually the material is the same as the material used in the covers), which provides the required delamination strength to the belt and allows the plies to move relative to each other as the belt is bent. Belts are installed on the conveyors in a closed loop in order to join belt sections, whose number and length depend on the length and type of the belt conveyor. Belts are joined with each other in a splicing procedure. The cutting of the belt core causes belt splices to be prone to concentrated stresses. The discontinued core also causes the belt to be the weakest element in a conveyor belt loop. The article presents the results of strength parameter tests that were performed on laboratory and industrial splices and indicated the reasons for the reduced strength of conveyor belt splices. Splice strength is reduced mainly due to incorrect preparation of the spliced surfaces and to different mechanical parameters of the spliced belts.

Suggested Citation

  • Mirosław Bajda & Monika Hardygóra, 2021. "Analysis of Reasons for Reduced Strength of Multiply Conveyor Belt Splices," Energies, MDPI, vol. 14(5), pages 1-21, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1512-:d:513812
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    References listed on IDEAS

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    1. Witold Kawalec & Natalia Suchorab & Martyna Konieczna-Fuławka & Robert Król, 2020. "Specific Energy Consumption of a Belt Conveyor System in a Continuous Surface Mine," Energies, MDPI, vol. 13(19), pages 1-10, October.
    2. Mu, Yunfei & Yao, Taiang & Jia, Hongjie & Yu, Xiaodan & Zhao, Bo & Zhang, Xuesong & Ni, Chouwei & Du, Lijia, 2020. "Optimal scheduling method for belt conveyor system in coal mine considering silo virtual energy storage," Applied Energy, Elsevier, vol. 275(C).
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    Cited by:

    1. Dawid Szurgacz, 2021. "Dynamic Analysis for the Hydraulic Leg Power of a Powered Roof Support," Energies, MDPI, vol. 14(18), pages 1-12, September.
    2. Dawid Szurgacz & Sergey Zhironkin & Stefan Vöth & Jiří Pokorný & A.J.S. (Sam) Spearing & Michal Cehlár & Marta Stempniak & Leszek Sobik, 2021. "Thermal Imaging Study to Determine the Operational Condition of a Conveyor Belt Drive System Structure," Energies, MDPI, vol. 14(11), pages 1-18, June.
    3. Sergey Zhironkin & Dawid Szurgacz, 2021. "Mining Technologies Innovative Development: Economic and Sustainable Outlook," Energies, MDPI, vol. 14(24), pages 1-9, December.
    4. Paweł Bogacz & Łukasz Cieślik & Dawid Osowski & Paweł Kochaj, 2022. "Analysis of the Scope for Reducing the Level of Energy Consumption of Crew Transport in an Underground Mining Plant Using a Conveyor Belt System Mining Plant," Energies, MDPI, vol. 15(20), pages 1-16, October.
    5. Dawid Szurgacz & Beata Borska & Ryszard Diederichs & Anthony J. S. Spearing & Sergey Zhironkin, 2023. "Minimizing Internal Leaks of a Powered Roof Support’s Hydraulic Prop Based on Double Block with Charging," Energies, MDPI, vol. 16(3), pages 1-14, January.
    6. Dawid Szurgacz & Sergey Zhironkin & Jiří Pokorný & A. J. S. (Sam) Spearing & Stefan Vöth & Michal Cehlár & Izabela Kowalewska, 2021. "Development of an Active Training Method for Belt Conveyor," IJERPH, MDPI, vol. 19(1), pages 1-12, December.
    7. Sergey Zhironkin & Dawid Szurgacz, 2022. "Mining Technologies Innovative Development: Industrial, Environmental and Economic Perspectives," Energies, MDPI, vol. 15(5), pages 1-5, February.
    8. Dawid Szurgacz & Beata Borska & Ryszard Diederichs & Sergey Zhironkin, 2022. "Development of a Hydraulic System for the Automatic Expansion of Powered Roof Support," Energies, MDPI, vol. 15(3), pages 1-15, January.
    9. Dawid Szurgacz & Beata Borska & Sergey Zhironkin & Ryszard Diederichs & Anthony J. S. Spearing, 2022. "Optimization of the Load Capacity System of Powered Roof Support: A Review," Energies, MDPI, vol. 15(16), pages 1-15, August.

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