Research on Coal-Releasing Characteristics of Hydraulic Support for a Large Inclined-Angle Comprehensive Workface
This research aimed to examine shortcomings such as low efficiency and unstable coal release of 2313 large inclined-angle comprehensively released working faces in 230 mining areas of a mine in Shandong. Through the study of the actual working conditions of the large inclined-angle comprehensive rel...
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Published in | Machines (Basel) Vol. 12; no. 9; p. 656 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
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MDPI AG
01.09.2024
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Abstract | This research aimed to examine shortcomings such as low efficiency and unstable coal release of 2313 large inclined-angle comprehensively released working faces in 230 mining areas of a mine in Shandong. Through the study of the actual working conditions of the large inclined-angle comprehensive release working face, it is concluded that the mining efficiency of the large inclined-angle coal seam is mainly related to the sequence of coal release, the step distance of the coal release, the distance between the end faces, the mining height, the working resistance of the hydraulic bracket and other factors. Taking ZF5600/16.5/26 hydraulic support as an example, simulation software was used to study the influencing factors of coal release efficiency, and the most efficient coal release method was found through the control variable method, so as to improve the mining recovery efficiency of the overall working face of the large inclined-angle coal seam, and after optimizing the working conditions of the hydraulic support, the top coal recovery efficiency was increased by 14.3% compared with the previous one after the actual statistics of the field situation. |
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AbstractList | This research aimed to examine shortcomings such as low efficiency and unstable coal release of 2313 large inclined-angle comprehensively released working faces in 230 mining areas of a mine in Shandong. Through the study of the actual working conditions of the large inclined-angle comprehensive release working face, it is concluded that the mining efficiency of the large inclined-angle coal seam is mainly related to the sequence of coal release, the step distance of the coal release, the distance between the end faces, the mining height, the working resistance of the hydraulic bracket and other factors. Taking ZF5600/16.5/26 hydraulic support as an example, simulation software was used to study the influencing factors of coal release efficiency, and the most efficient coal release method was found through the control variable method, so as to improve the mining recovery efficiency of the overall working face of the large inclined-angle coal seam, and after optimizing the working conditions of the hydraulic support, the top coal recovery efficiency was increased by 14.3% compared with the previous one after the actual statistics of the field situation. |
Audience | Academic |
Author | Zhang, Dekang Cao, Lianmin Geng, Mingyan Shen, Rui Zhang, Xiaowei |
Author_xml | – sequence: 1 givenname: Lianmin surname: Cao fullname: Cao, Lianmin – sequence: 2 givenname: Mingyan surname: Geng fullname: Geng, Mingyan – sequence: 3 givenname: Rui surname: Shen fullname: Shen, Rui – sequence: 4 givenname: Dekang surname: Zhang fullname: Zhang, Dekang – sequence: 5 givenname: Xiaowei surname: Zhang fullname: Zhang, Xiaowei |
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Cites_doi | 10.1155/2022/7704226 10.1007/s10064-023-03173-9 10.1002/ese3.740 10.1016/j.ijrmms.2010.08.010 10.1016/j.ijrmms.2004.08.007 10.1080/19475705.2023.2184672 10.1016/j.petrol.2018.02.044 10.1371/journal.pone.0283883 |
ContentType | Journal Article |
Copyright | COPYRIGHT 2024 MDPI AG 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
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SubjectTerms | Coal mining coal-placing characteristics Deterrence Efficiency hydraulic roof coal-placing support Hydraulics International economic relations large-angle coal seam Mineral industry Mines and mineral resources Mining industry Recovery Resistance factors Simulation stability Work face |
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Title | Research on Coal-Releasing Characteristics of Hydraulic Support for a Large Inclined-Angle Comprehensive Workface |
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