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Minimizing Internal Leaks of a Powered Roof Support’s Hydraulic Prop Based on Double Block with Charging

Author

Listed:
  • Dawid Szurgacz

    (Center of Hydraulics DOH Ltd., ul. Konstytucji 147, 41-906 Bytom, Poland
    Polska Grupa Górnicza S.A., ul. Powstańców 30, 40-039 Katowice, Poland)

  • Beata Borska

    (KWK Ruda Ruch Halemba, ul. Halembska 160, 41-717 Ruda Śląska, Poland)

  • Ryszard Diederichs

    (Center of Hydraulics DOH Ltd., ul. Konstytucji 147, 41-906 Bytom, Poland)

  • Anthony J. S. Spearing

    (School of Mines, China University of Mining and Technology, 1 Daxue Road, Tongshan District, Xuzhou 221116, China)

  • Sergey Zhironkin

    (Department of Trade and Marketing, Siberian Federal University, 79 Svobodny av., 660041 Krasnoyarsk, Russia
    Department of Open Pit Mining, T.F. Gorbachev Kuzbass State Technical University, 28 Vesennya st., 650000 Kemerovo, Russia)

Abstract

The hydraulic system of a powered roof support performs two functions. The first function is to control the powered roof support in the extraction wall. The second function is to protect against adverse overloads resulting from rock mass pressing directly on the powered roof support. This damaging phenomenon is prevented by the protection of the powered roof support, with a safety valve built into the hydraulic system or directly into the prop. However, the third function proposed by the authors based on the research results is to minimize leaks. These leaks usually develop in the props or in the hydraulic system. The authors propose implementing changes to the hydraulic system for this purpose. The change consists of replacing the existing support block with a double block with charging. Tests were carried out in real conditions, that is, a mining wall. Tests in the mining wall were carried out on the powered roof support’s leaking prop. As a result of charging, the actual load capacity of the prop increased by about 10–50% in relation to the load capacity before charging. The use of a double block with charging ensured that the pressure in the under-piston space of the prop was maintained at a minimum of 250 bar. The results allowed us to determine the usefulness of the proposed solution and eliminate its disadvantages—the designated direction of research and development on the powered roof support allowed us to expand its functionality by minimizing leaks.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:3:p:1341-:d:1048099
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    References listed on IDEAS

    as
    1. 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.
    2. Michał Patyk & Przemysław Bodziony & Zbigniew Krysa, 2021. "A Multiple Criteria Decision Making Method to Weight the Sustainability Criteria of Equipment Selection for Surface Mining," Energies, MDPI, vol. 14(11), pages 1-14, May.
    3. Oleg Bazaluk & Orest Slabyi & Vasyl Vekeryk & Andrii Velychkovych & Liubomyr Ropyak & Vasyl Lozynskyi, 2021. "A Technology of Hydrocarbon Fluid Production Intensification by Productive Stratum Drainage Zone Reaming," Energies, MDPI, vol. 14(12), pages 1-15, June.
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    5. Jaroslaw Wajs & Paweł Trybała & Justyna Górniak-Zimroz & Joanna Krupa-Kurzynowska & Damian Kasza, 2021. "Modern Solution for Fast and Accurate Inventorization of Open-Pit Mines by the Active Remote Sensing Technique—Case Study of Mikoszów Granite Mine (Lower Silesia, SW Poland)," Energies, MDPI, vol. 14(20), pages 1-17, October.
    6. Dawid Szurgacz & Sergey Zhironkin & Michal Cehlár & Stefan Vöth & Sam Spearing & Ma Liqiang, 2021. "A Step-by-Step Procedure for Tests and Assessment of the Automatic Operation of a Powered Roof Support," Energies, MDPI, vol. 14(3), pages 1-16, January.
    7. Dawid Szurgacz, 2021. "Dynamic Analysis for the Hydraulic Leg Power of a Powered Roof Support," Energies, MDPI, vol. 14(18), pages 1-12, September.
    8. Aleksandra Grzesiek & Radosław Zimroz & Paweł Śliwiński & Norbert Gomolla & Agnieszka Wyłomańska, 2021. "A Method for Structure Breaking Point Detection in Engine Oil Pressure Data," Energies, MDPI, vol. 14(17), pages 1-24, September.
    9. 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.
    10. Krzysztof Kotwica & Grzegorz Stopka & Marek Kalita & Dominik Bałaga & Michał Siegmund, 2021. "Impact of Geometry of Toothed Segments of the Innovative KOMTRACK Longwall Shearer Haulage System on Load and Slip during the Travel of a Track Wheel," Energies, MDPI, vol. 14(9), pages 1-25, May.
    11. 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.
    12. Jakub Janus & Jerzy Krawczyk, 2021. "Measurement and Simulation of Flow in a Section of a Mine Gallery," Energies, MDPI, vol. 14(16), pages 1-15, August.
    13. Oleg Bazaluk & Andrii Velychkovych & Liubomyr Ropyak & Mykhailo Pashechko & Tetiana Pryhorovska & Vasyl Lozynskyi, 2021. "Influence of Heavy Weight Drill Pipe Material and Drill Bit Manufacturing Errors on Stress State of Steel Blades," Energies, MDPI, vol. 14(14), pages 1-15, July.
    14. 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.
    15. Przemyslaw J. Borkowski, 2020. "Comminution of Copper Ores with the Use of a High-Pressure Water Jet," Energies, MDPI, vol. 13(23), pages 1-11, November.
    16. Paweł Zimroz & Paweł Trybała & Adam Wróblewski & Mateusz Góralczyk & Jarosław Szrek & Agnieszka Wójcik & Radosław Zimroz, 2021. "Application of UAV in Search and Rescue Actions in Underground Mine—A Specific Sound Detection in Noisy Acoustic Signal," Energies, MDPI, vol. 14(13), pages 1-21, June.
    17. Mateusz Góralczyk & Pavlo Krot & Radosław Zimroz & Szymon Ogonowski, 2020. "Increasing Energy Efficiency and Productivity of the Comminution Process in Tumbling Mills by Indirect Measurements of Internal Dynamics—An Overview," Energies, MDPI, vol. 13(24), pages 1-19, December.
    18. Peng Huang & Sam Spearing & Feng Ju & Kashi Vishwanath Jessu & Zhongwei Wang & Pai Ning, 2019. "Control Effects of Five Common Solid Waste Backfilling Materials on In Situ Strata of Gob," Energies, MDPI, vol. 12(1), pages 1-14, January.
    19. Piotr Bortnowski & Lech Gładysiewicz & Robert Król & Maksymilian Ozdoba, 2021. "Energy Efficiency Analysis of Copper Ore Ball Mill Drive Systems," Energies, MDPI, vol. 14(6), pages 1-14, March.
    20. Krzysztof Krauze & Kamil Mucha & Tomasz Wydro & Edward Pieczora, 2021. "Functional and Operational Requirements to Be Fulfilled by Conical Picks Regarding Their Wear Rate and Investment Costs," Energies, MDPI, vol. 14(12), pages 1-19, June.
    21. Janina Świątek & Tomasz Janoszek & Tomasz Cichy & Kazimierz Stoiński, 2021. "Computational Fluid Dynamics Simulations for Investigation of the Damage Causes in Safety Elements of Powered Roof Supports—A Case Study," Energies, MDPI, vol. 14(4), pages 1-20, February.
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    1. Sergey Zhironkin & Dawid Szurgacz, 2023. "Mining Technologies Innovative Development II: The Overview," Energies, MDPI, vol. 16(15), pages 1-5, July.

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