Results 71 to 80 of about 1,143 (178)

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

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   +1 more source

Regulation method of coal flow anti-congestion in fully-mechanized mining face based on ensemble decision-making

Meitan kexue jishu
The congestion of coal flow in fully-mechanized mining face may cause the scraper conveyor to operate under overload or even be crushed, which significantly affects the production efficiency of the fully-mechanized mining face.
Yuan WANG, Jun LIU, Haitao HE, Shuanfeng ZHAO, Zhengxiong LU, Lele XU   +5 more
doaj   +1 more source

Application of WiFi communication in fully-mechanized coal mining face of thin seam

Gong-kuang zidonghua, 2020
Aiming at requirements of high reliability, high bandwidth, low delay and wide coverage of wireless communication in fully-mechanized coal mining face of thin seam, and taking 43101 fully mechanized mining face of thin seam of Yujialiang Coal Mine as application background, WiFi communication scheme applied to fully-mechanized coal mining face of thin ...
DONG Wenbo, GAO Siwei
openaire   +1 more source

Study on unmanned mining technology of fully mechanized coal mining face

Gong-kuang zidonghua, 2017
The paper analyzed present situation of development of fully mechanized coal mining face, including application situation and existing problems of technologies of memory coal cutting, hydraulic support automation, coal and rock identification and so on.
openaire   +1 more source

Design of multivariate early warning management system for fully-mechanized coal mining equipment

Gong-kuang zidonghua, 2018
In view of problems of low accuracy, low efficiency and poor timeliness in current management mode of fully-mechanized coal mining equipment, a multivariate early warning management system for fully-mechanized coal mining equipment was designed.
YANG Rui, CAO Kai, WANG Jiyu
doaj   +1 more source

Linkage control method of fully mechanized mining equipment based on thousand eyes intelligent analysis system

Meikuang Anquan
The fully mechanized mining face system is complex and large, and the equipment is highly correlated. The reliability of the intelligent fully-mechanized coal mining equipment system has gradually become the key factor restricting the intelligent safe ...
Xu LI, Wei YANG, Yun SHI, Jie LI, Bo DONG   +4 more
doaj   +1 more source

Research on key technologies of intelligent fully mechanized mining on working face with large mining height

Gong-kuang zidonghua, 2018
In order to solve problems of large number of workers and high labor intensity on fully mechanized mining face with large mining height, according to actual situation of No.2 Coal Mine of Huangling Mining Group Co., Ltd., technical difficulties such as ...
FAN Jingdao
doaj   +1 more source

Ground pressure behavior law at fully-mechanized face in Fenxi-ShuGuang coal mine

Procedia Earth and Planetary Science, 2009
AbstractIn this paper, based on field observations and theoretical analysis, we discussed the ground pressure behavior law and its characteristic at fully-mechanized face and the material roadway of 10# seam in Fenxi-Shuguang coal mine. The analysis results indicates that ground pressure at material roadway increased sharply when the working face ...
Shi-jie, Zhang, Cheng-wu, Li, Bai-sheng, Nie, Hao, Zhang, Xiao-yuan, Sun   +4 more
openaire   +1 more source

Rotating mining technology and underground pressure law of fully mechanized caving face in Baode Coal Mine

Meikuang Anquan, 2021
In order to study the technical problems in the mining of irregular working face and the law of underground pressure in the mining process, take the 81308 fully mechanized caving face of Baode Coal Mine as the background, this paper uses theoretical analysis, numerical simulation, and field tests to study the technology of end equipment lapping, mining
YANG Xiaodong, LI Cunzhou
openaire   +1 more source

Development status and prospect on key technical equipment of high efficiency fully mechanized mining in super high and super long working face

Meitan kexue jishu
As an important energy support for China”s economic development, coal will remain dominant in energy consumption for a period of time in the future.
Mingzhong LI, Wenge ZHAO, Ruyu YAN, Jiachen WANG, Yajun LEI, Zheng YANG, Huijun HAN, Jinhu ZHANG, Yanjun FENG, Desheng ZHANG, Zhizeng HUANG   +10 more
doaj   +1 more source