Research and application of key technology of intelligent coal caving in high gas fully-mechanized top coal caving face [PDF]
Meitan kexue jishu, 2023 At present, intelligent coal caving in high gas fully mechanized top coal caving face is facing many problems, mainly including poor recognition accuracy of coal gangue, incomplete control research on coal flow and gas concentration, cumbersome design ...
Yao CUI +3 more
doaj +4 more sources
Research and application of intelligent caving technology in fully mechanized working face
Gong-kuang zidonghua, 2021 The traditional top coal caving control mainly relies on manual coal caving control, which uses single-round of sequential coal caving. The working face equipped with electro-hydraulic control system mainly adopts the two-round sequential coal caving ...
WU Tong, YU Rui, LIU Qing, WEI Wenyan
doaj +2 more sources
CO emission regularity and its influencing factors in a fully mechanized caving face [PDF]
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
Meikuang Anquan, 2022 Based on the discrete element development environment YADE under Linux environment, this paper develops a three-dimensional simulation system for continuous feeding and coal caving in fully mechanized caving face.
YANG Yi, GAO Yang, LUO Kaicheng, WANG Keping, FEI Shumin
doaj +2 more sources
Gong-kuang zidonghua, 2020 In the context of intelligent fully mechanized caving and mining, it is important to consider not only the cutting by the shearer, but also the coal caving at the back of the support and top coal recovery.
HAN Xiuqi +4 more
doaj +2 more sources
Research on active roof control space of fully mechanized caving support based on motion posture perception [PDF]
Meitan xuebaoThe fully mechanized top-coal caving support is a critical device that serves both as a support mechanism and an active means for top-coal caving in fully mechanized top-coal caving mining operations.
Qingliang ZENG +5 more
doaj +3 more sources
Method of tail beam posture prediction of top coal caving hydraulic support based on LSTM [PDF]
Meitan kexue jishuFully mechanized caving is the main mining method for extra-thick coal seams in my country. The control accuracy of the caving actuator depends largely on the data feedback of the tail beam posture.
Yupeng YAO, Jinglin ZHANG, Wu XIONG
doaj +3 more sources
Sudden change mechanism of mine pressure in fully mechanized caving face and its countermeasures
Meikuang Anquan, 2022 In view of the sudden change of mine pressure in 226 upper 02 fully mechanized caving face of Huangyuchuan Coal Mine, the mechanism and countermeasures of sudden change of mine pressure in fully mechanized caving face are studied by using the methods of
LI Yong, WANG Zhuoying
doaj +2 more sources
Pumping pillar technology of fully mechanized caving face passing through abandoned roadway
Gong-kuang zidonghua, 2019 Existing working face passing through abandoned roadway based on traditional support methods cannot adapt to changeable geological conditions well. Based on research background of 8103 fully mechanized caving face of Yongdingzhuang Coal Industry Co., Ltd.
HAO Yuhui, KANG Guanxian
doaj +2 more sources
Theory and key technologies for intelligent fully-mechanized top-coal caving faces of annual production of millions of tons [PDF]
Meitan kexue jishuThe research focused on addressing various challenges in intelligent top caving theory, intelligent perception and recognition key technology, intelligent caving comprehensive decision-making technology, and remote caving intelligent control technology ...
Bin YU +7 more
doaj +3 more sources