Results 251 to 260 of about 1,939 (269)

Study on the fully mechanized longwall face working condition in China colliery

2020
At present, the coal production of the fully mechanized longwall face accounts for more than 40 percent of the whole amount in China. In order to improve the working condition of the fully mechanized longwall face, the investigation started in February, 1994.
Jiang Xueyun, M.D. Xie Yaoshe
openaire   +1 more source

Research on air curtain dust control technology for environmental protection at fully mechanized working faces

Environmental Science and Pollution Research, 2022
The development of coal industry is restricted by dust pollution. Air curtain dust control technology was proposed as a solution to the serious problem of pollution. A mixture of numerical modeling and field tests has been used to study this technology.
Wen Nie, Xu Zhang, Huitian Peng, Dawei Chen, Tao Du, Bo Yang, Chengyi Liu   +6 more
openaire   +2 more sources

Finite Element Analysis of Abutment Pressure Distribution Characteristic of Working Faces in Fully Mechanized Sublevel Caving Face

Applied Mechanics and Materials, 2011
The elastic-plastic constitutive relationship and the Drucker-prager yielding criterion are used to simulate the behaviour of non-linear geo- materials. Dynamic change laws of abutment pressure of S2S2 work face of xiaokang coal mine is simuluted by the ansys program.
Hong Chun Xia, Zhen Qi Song, Li Jing Ru
openaire   +1 more source

Experimental study of the effects of air volume ratios on the air curtain dust cleaning in fully mechanized working face

Journal of Cleaner Production, 2021
Weimin Cheng, Zhanyou Sa, Dawei Chen
exaly  

Investigation on dust dispersion during support movement in a fully mechanized mining face and the technology with support frame enclosure dust control

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2021
Jinming Mo, Dandan Li
exaly  

Study on dust diffusion characteristics of continuous dust sources and spray dust control technology in fully mechanized working face

Powder Technology, 2022
Yapeng Wang, Zhongan Jiang
exaly  

Effects of Recovery Ratio on the Fracture Evolution of the Overburden Pressure-Relief Gas Migration Channel for a Fully Mechanized Working Face

Natural Resources Research, 2022
Haifei Lin, Chi‑Min Shu, Yongyong Jia   +2 more
exaly  

Research and Application of Automatic Mining Technology in Fully Mechanized Unmanned Working Face

Foreign Language Science and Technology Journal Database Engineering Technology, 2021
openaire   +1 more source

Distribution pattern of front abutment pressure of fully-mechanized working face of soft coal isolated island

International Journal of Mining Science and Technology, 2012
Enyuan Wang, Rongxi Shen, Dazhao Song
exaly  

Determination of working resistance based on movement type of the first subordinate key stratum in a fully mechanized face with large mining height

Energy Science and Engineering, 2019
Yunpei Liang, Quanle Zou
exaly