Results 21 to 30 of about 1,939 (269)
Backfilling technology and strata behaviors in fully mechanized coal mining working face
International Journal of Mining Science and Technology, 2012 Abstract Based on the principle of fully mechanized backfilling and coal mining technology and combined with the Xingtai Coal Mine conditions, we mainly optimized the coal mining equipment and adjusted the coal mining method in the Xingtai Coal Mine 7606 working face for implementation this technology.
Yanli Huang, Feng Ju
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CO emission regularity and its influencing factors in a fully mechanized caving face
AIP Advances, 2021 To explore the problem of CO concentration overrun in fully mechanized caving faces, a multiphysical field coupling model of CO emission regularity was established in this study based on the gas flow theory, gas concentration field theory, and heat ...
Xinlei Jia +4 more
doaj +2 more sources
Gong-kuang zidonghua, 2013 The paper introduced research development and actual application status of automation control technology for fully mechanized working face at home and abroad, indicated development tendency of automation control technology for fully mechanized working ...
HUANG Zeng-hua
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Research of noise in audio system of fully mechanized working face
Gong-kuang zidonghua, 2014 Major sources of noise in audio system of fully mechanized working face were researched in the practice. Advices of design of filter were given for different application requirements, and band-pass active filter was designed.
HE Yonghua
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Meitan kexue jishuThe five procedures in a fully mechanized Longwall working face is coal cutting, coal loading to convey, coal convey out of the Longwall working face, roof supporting and goaf disposal. The fully mechanized mining face equipped with intelligent equipment
Donghui LIAN +5 more
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A three machine digital twin and collaborative modeling method for fully mechanized working face
Gong-kuang zidonghua, 2023 The existing coal mine equipment digital twin modeling method mainly focuses on single equipment modeling. It lacks three machine coupling collaborative relationship analysis. In order to solve the above problems, the paper puts forward three machine digital twin and collaborative modeling method for fully mechanized working face.
LIU Qing +3 more
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Emulsion pump station system for super high fully mechanized working face
Gong-kuang zidonghua, 2021 In order to meet the emulsion demand of 8.8 m super high fully mechanized working face, and solve the problems of the existing emulsion pump station system, such as low flow rate of single pump station, insufficient reliability of transmission system ...
CHEN Wei, WANG Cunfei, BIAN Yan
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Top coal thickness detection method for intelligent fully-mechanized working face
Gong-kuang zidonghua, 2021 Detecting the thickness of the top coal in a fully mechanized working face in advance can provide a basis for precise control of the top coal caving, which is beneficial to achieving a balance between the coal caving recovery rate and coal quality.
YANG Xiuyu1 +3 more
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Gong-kuang zidonghua, 2023 The intelligence of fully mechanized working face is a key link in the intelligence of coal mines. The perception and analysis of hydraulic support state is the premise and foundation of intelligent control of fully mechanized working face.
LI Jian, REN Huaiwei, GONG Shixin
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Sustainability, 2022 The roof control of a fully mechanized mining face has a significant impact on coal extraction. Therefore, information about strata behavior and differentiated control measures for abnormal roofs are needed. In the present research, we used the ground pressure theory to calculate the interval of the first and periodic weighting of working faces 11113 ...
Qiang Fu +4 more
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