Results 1 to 10 of about 843,741 (156)
Dynamic Random Arching in the Flow Field of Top-Coal Caving Mining
Energies, 2018 The large mining height fully mechanized top-coal caving mining technique has developed rapidly and become the most extensively used mining method for ultra-thick coal seams. The arching of coal/gangue and the drawing out of gangue are peculiar phenomena
Ningbo Zhang +3 more
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Influences of coal-rock interface morphology’s spatiotemporal evolutionary characteristics on top coal caving law [PDF]
Scientific ReportsThe work examined how the spatiotemporal evolution of the coal-rock interface morphology affected the top coal caving ratio. The geological conditions of the 3307 fully mechanized caving face at Tang’an Coal Mine served as the research context.
Yupeng Shen +5 more
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Energies, 2020 The combination of coal precise mining and information technology in the new century is one of the important directions for the future development of coal mining.
Jingjing Dai, Pengfei Shan, Qi Zhou
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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
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Energy Science & EngineeringReal‐time monitoring of the coal caving process in fully mechanized mining is crucial for achieving intelligent and efficient top‐coal caving. While the coal gangue identification method, employing vision and deep learning, has advanced in the realm of ...
PengFei Shan +3 more
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Frontiers in Energy Research, 2022 In order to improve the accuracy of simulation parameters used in the discrete element simulation test of a fully mechanized top-coal caving process and further explore the intelligent fully mechanized coal caving technology, this research work studies ...
Lijuan Zhao +6 more
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Precise detection of coal and gangue based on natural γ-ray [PDF]
Scientific ReportsTo address the technical limitations of automatic coal and gangue detection technology in fully mechanized top coal caving mining operations, the low radiation level radioactivity measurement method is utilized to assess the degree of coal-gangue mixture
Ningbo Zhang +5 more
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Coal-gangue sound recognition using hybrid multi-branch CNN based on attention mechanism fusion in noisy environments [PDF]
Scientific ReportsThe coal-gangue recognition technology plays an important role in the intelligent realization of fully mechanized caving face and the improvement of coal quality. Although great progress has been made for the coal-gangue recognition in recent years, most
Qingjun Song +5 more
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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
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Intelligent decision-making method for coal caving based on fuzzy deep Q-network
Gong-kuang zidonghua, 2023 During the coal caving process in the fully mechanized caving face, due to the impact of coal dust and dust water mist on the workers' line of sight, there are problems of over-caving and under-caving in manually controlled coal caving. In order to solve
YANG Yi +3 more
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