Results 21 to 30 of about 34,263 (308)

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
doaj   +2 more sources

Digital coal seam-based precision mining system for fully mechanized working face

Gong-kuang zidonghua, 2021
The current automatic coal mining technology with memory cutting as the core technology cannot perceive the changes of geological conditions of the working face autonomously, and the shearer can hardly realize automatic height adjustment control ...
LI Xu1, WU Xuefei2, TIAN Ye3, DONG Bo4, DANG Enhui4   +4 more
doaj   +2 more sources

Research on overburden structural characteristics and support adaptability in cooperative mining of sectional coal pillar and bottom coal seam [PDF]

Scientific Reports
In the mining process of the II1 coal seam at Zhaogu No. 2 coal mine, a method of stratified mining is employed, leaving relatively wide coal pillars in sections.
Du Feng, Fan Xuan, Li Zhenhua, Cao Zhengzheng, Wang Wenqiang, Lu Feifei, Jiang Yufei   +6 more
doaj   +2 more sources

Research and application of automatic production technology of fully mechanized longwall working face

Meitan kexue jishu
The 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, Ruifu YUAN, Kefei CUI, Xiang MA, Penghui YUAN, Kun PAN   +5 more
doaj   +2 more sources

Research on state perception and analysis technology of hydraulic support in fully mechanized working face

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
doaj   +2 more sources

Research on the optimal design of roadway support for fully mechanized coal seam working face [PDF]

Journal of Physics: Conference Series
Abstract For the optimal design of surrounding rock deformation and support in the shallow buried coal seam of large-scale fully mechanized mining face, this paper took the surrounding rock of the roadway as the research object, used theoretical calculation and numerical simulation to establish the mechanical model of the deformation of ...
Qiuhui Liang, Baoliang Zhang
openaire   +2 more sources

Abnormal Pressure Event Recognition and Dynamic Prediction Method for Fully Mechanized Mining Working Face Based on GRU-AM. [PDF]

Sensors (Basel)
Qin K, Shu L, Chen Z, Zhao Y, Li Y.
europepmc   +3 more sources

Boundary quantitative characterization of the top-coal limit equilibrium zone in fully mechanized top-coal caving stope along the strike direction of working face. [PDF]

Sci Rep
Lang D, Wu X, Wu Y, Xie P, Yan Z, Chen S.   +5 more
europepmc   +3 more sources

Application of Real-time Pressure Monitoring System of Fully Mechanized Working Face

Gong-kuang zidonghua, 2011
The paper introduced design of a real-time pressure monitoring system of fully mechanized working face taking 120204 fully mechanized working face of Yangchangwan Coal Mine as example.
WANG Xin-wen, LIU Yun-xia
doaj   +1 more source

Coal mine intelligence，mine 5G and network hard slicing technology

Gong-kuang zidonghua, 2021
In order to reduce the number of operators in the working face of coal mines, an unmanned 5G ground remote control method for working face is proposed.
SUN Jiping
doaj   +1 more source