Optimization of the Load Capacity System of Powered Roof Support: A Review

Dawid Szurgacz, Beata Borska, Sergey Zhironkin (), Ryszard Diederichs and Anthony J. S. Spearing
Additional contact information
Dawid Szurgacz: Center of Hydraulics DOH Ltd., ul., Konstytucji 147, 41-906 Bytom, Poland
Beata Borska: KWK Ruda Ruch Halemba, ul., Halembska 160, 41-717 Ruda Sląska, Poland
Sergey Zhironkin: Department of Trade and Marketing, Siberian Federal University, 79 Svobodny av., 660041 Krasnoyarsk, Russia
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

Energies, 2022, vol. 15, issue 16, 1-15

Abstract: Powered roof support is equipped with a hydraulic control system to ensure its required load capacity. The main problem arising from powered roof support during exploitation is providing the necessary load capacity. A decrease in load capacity is mainly associated with internal and external leakage in the cylinders, mainly in the hydraulic props. The hydraulic prop’s role is to ensure stability for the powered roof support. A special double block with an additional pressure boost was developed to counter the props’ leakage phenomenon. Pressure loss is replenished based on the solution proposed here. For this purpose, bench tests were commenced, in which a prop with an internal leakage was used. The research included the analysis of the operation of a boosted double block. The results allowed us to assess whether the developed solution can be the subject of further research conducted in real conditions.

Keywords: bench tests; hydraulic prop; powered roof support; hydraulic system; double block (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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