Results 41 to 50 of about 4,725,858 (203)
Research on Dust Source Traceability Based on Dust Migration Law in Working Area of Large Mining Height Fully-mechanized Face [PDF]
E3S Web of Conferences, 2022 The dust control basis of fully mechanized mining face is clear dust source characteristics. In view of the problem of unclear dust source and unknown distribution characteristics in the working area of 7.8 m large fully mechanized mining face, the fully
Li Zhi, Ma Wei
doaj +1 more source
Optimization and Application of Coal Pillar in Fully Mechanized Mining Face based on Energy Analysis
International Journal of Energy, 2023 Based on the theory of energy dissipation, a numerical model of goaf excavation was established by FLAC3D based on the backflow channel of Heilong Coal Industry 2202.
Shiyi Huang, Zhixu Li
semanticscholar +1 more source
, 2020 This paper systematically summarizes the development process of fully mechanized top coal caving technology and equipment in Yankuang Group in recent 30 years.
MENG Xiangjun, LI Mingzhong, YUE Ning, SUN Jishuang
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Gong-kuang zidonghua, 2022 The coal resources in Xinjiang are shallowly buried, the coal seam is thick, resulting in poor top coal caving and drawing. And the roof is overhanging in a large area, which makes it impossible to achieve safe and efficient top coal mining.
SUN Qiang +6 more
doaj +1 more source
International Journal of Coal Science & Technology, 2019 A mathematical hydraulic support self-tracking model for three-machine cooperative mining is proposed to address low efficiency and difficulties in strategy evaluation of a fully mechanized coal face.
Hengbo Shi +4 more
semanticscholar +2 more sources
Determination on Reasonable Mining Height and Top Coal Caving Technology in Huating Coal Mine
Meikuang Anquan, 2020 In view of the problems, such as coal wall spalling, roof caving and low recovery rate of top coal in 250107-1 fully mechanized caving face of Huating Coal Mine at present, the method of combining FLAC3D numerical analysis and theoretical calculation ...
QIAO Zhongdong, QU Ying, YANG Guohong, LIU Biao
doaj +1 more source
Research and application of key technology of intelligent coal caving in high gas fully-mechanized top coal caving face [PDF]
, 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
core +1 more source
Research progress and prospect of wet dust control technology in fully mechanized excavation face
Meikuang Anquan, 2023 The ventilation of fully mechanized roadway in coal mine is easy to cause the rapid diffusion of dust, which makes it more difficult to control dust pollution. In order to improve the working environment of fully mechanized coal mining face, the progress
ZHU Xiaotong +5 more
doaj +1 more source
, 2023 A fully mechanized mining face tend to show great change in coal thickness, which affects the safe, efficient coal mining. Therefore, it is necessary to detect the change in the coal thickness before stoping. To determine the response of electromagnetic (
Yulin, XIAO, Xiang, LI, Rongxin, WU
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Numerical Simulation Study on Law of Dispersive Pollution of Dust in Fully Mechanized Mining Face
, 2020 Aiming at the problem of dust movement in the fully mechanized mining work, a 3D model of the fully mechanized mining face was established based on the gas-solid two-phase flow theory based on the 3604 face in Chenbanzhuang Coal Mine.
KONG Yang, PANG Haosheng, SONG Shuzheng, MENG Qunzhi
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