Results 1 to 10 of about 8,725 (226)

Probe on concept of automatic fully-mechanized coal mining face

open access: yesGong-kuang zidonghua, 2014
Technology status of automatic fully-mechanized coal mining face in China was introduced, and fully-mechanized coal mining equipments were classified into production equipment, auxiliary equipment and monitoring and control system.
FU Guoju
doaj   +2 more sources

Grid partition method of fully-mechanized coal mining face area and its applicatio

open access: yesGong-kuang zidonghua, 2018
In order to meet fine management requirements for fully-mechanized coal mining face production, a grid partition method of fully-mechanized coal mining face area was put forward.
QU Shijia
doaj   +2 more sources

Design and application of automation control system of fully mechanized coal mining face

open access: yesGong-kuang zidonghua, 2014
In view of problem of low efficiency of automation coal mining on fully mechanized coal mining face, a design scheme of automation control system of fully mechanized coal mining face was proposed, composition and functions of the system were introduced ...
SUN Bingke, HE Yonghua
doaj   +2 more sources

Cooperative control technology of shear and hydraulic support on fully-mechanized coal mining face

open access: yesGong-kuang zidonghua, 2020
Aiming at low cooperative control efficiency of shearer and hydraulic support on fully-mechanized coal mining face, a cooperative control technology of shearer and hydraulic support on fully-mechanized coal mining face was proposed based on technologies ...
LIU Qing   +3 more
doaj   +2 more sources

Numerical and in-situ investigation on the ground behavior of the end roof in fully mechanized caving face [PDF]

open access: yesE3S Web of Conferences, 2021
Fully mechanized top coal caving is a major high-yield and high-efficiency coal mining method for thick seam mining. At present, it is affected by the further popularization and application of fully mechanized caving mining because the recovery rate is ...
Zang Chuanwei   +5 more
doaj   +1 more source

Study on overburden movement law and ground pressure behavior in fully mechanized top coal caving face under the disturbance of upper coal seam

open access: yesMeikuang Anquan, 2023
In recent years, most of the coal mines in Zhungeer Coalfield have entered the mining of the second main coal seams, such as 6#, 10# and 11#, with an average thickness of more than 10 m, so most of the coal mines use fully mechanized caving mining ...
Hua NAN, Zhuoying WANG
doaj   +1 more source

Study on the Mine Pressure Law and the Pressure Frame Mechanism of an Overlying Goaf in a Shallow Coal Seam

open access: yesShock and Vibration, 2021
To study the problems of dynamic load pressure and frame pressure caused by the concentration of stress by coal extraction pillars during the mechanized short-distance mining of goaves in shallow coal seams, a frame pressure accident, in the Shendong ...
Haifeng Zhou   +3 more
doaj   +1 more source

Research on key technology of intelligent fully mechanized caving face construction in Baode Coal Mine

open access: yesGong-kuang zidonghua, 2023
The current research achievements in the construction of intelligent fully mechanized caving face lack systematic implementation case for a specific fully mechanized caving face.
WU Xicang   +3 more
doaj   +1 more source

Concept, realization path and key technologies of intelligent mining based on transparent longwall face

open access: yesGong-kuang zidonghua, 2020
Taking transparent coal seam, transparent fully-mechanized mining equipment and transparent decision-making and control as core, concept of intelligent mining based on transparent longwall face was put forward, namely based on enhanced geological ...
WANG Feng
doaj   +1 more source

Prediction of gas emission rate on fully-mechanized caving face with layered mining of thick coal seam

open access: yesGong-kuang zidonghua, 2020
Due to the difference between fully-mechanized caving face and single stoping process face, there would be a big error in predicting gas emission rate on fully mechanized caving face by use of AQ 1018-2006 The Predicted Method of Mine Gas Emission Rate ...
WANG Xiaopeng
doaj   +1 more source

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