Results 61 to 70 of about 1,482 (145)

A three machine digital twin and collaborative modeling method for fully mechanized working face

Gong-kuang zidonghua, 2023
The existing coal mine equipment digital twin modeling method mainly focuses on single equipment modeling. It lacks three machine coupling collaborative relationship analysis. In order to solve the above problems, the paper puts forward three machine digital twin and collaborative modeling method for fully mechanized working face.
LIU Qing, ZHANG Long, LI Tianyue, DU Pengfei   +3 more
openaire   +1 more source

Research and application of intelligent control technology for dust control parameters in fully mechanized excavation working face of coal mines

Meitan kexue jishu
To address the technical challenge of manually adjusting dust control parameters in long-term the fully mechanized excavation working face, which leads to an inability to sustain optimal dust suppression effects, this paper adopts a research approach ...
Lei SHI, Kui LIU, Yinghua LYU, Xiaobing GONG   +3 more
doaj   +1 more source

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

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   +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

Design of height measurement sensor for hydraulic support in fully mechanized working face

Gong-kuang zidonghua
A hydraulic support height measueement sensor based on Pascal's law is designed to address the difficulties in measuring the height, reliability, and stability of hydraulic supports in fully mechanized working faces. The height measurement sensor is equipped with a slender liquid tube, which is filled with methyl silicone oil.
GAO Siwei, GU Minyong, LI Dianpeng
openaire   +1 more source

Research on the transportation model and coal quantity calculation algorithm of scraper conveyor based on array

Gong-kuang zidonghua
Currently, most research on coal quantity detection focuses on the coal quantity detection and recognition of underground belt conveyors in coal mines. The coal quantity detection of scraper conveyors in fully mechanized working (caving) faces only stays
YIN Rui, ZHANG Dongxue, NI Qiang
doaj   +1 more source

UWB based measurement system for pushing progress of fully mechanized working face

Gong-kuang zidonghua
A real-time measurement system for the pushing progress of fully mechanized working face based on UWB ranging technology is proposed to address the problems of existing measurement and calculation methods, such as time-consuming, labor-intensive, large cumulative errors, and inability to recalculate after sensor damage.
LIU Qing, LIU Junfeng
openaire   +1 more source

Real-time 3D mapping method of fully mechanized working face based on laser SLAM

Gong-kuang zidonghua, 2022
The mobile mapping method relies on fiber optic inertial navigation with high precision and odometer to calculate the position and attitude. But in the actual engineering practice, the precision of odometer is difficult to meet the application requirements, resulting in incomplete 3D laser point cloud of working face.
QI Yuhao, GUAN Shiyuan
openaire   +1 more source

Impact hazard analysis and prevention research of square structure area in fully mechanized working face

Gong-kuang zidonghua, 2021
At present, the impact hazard analysis of fully mechanized working face is only carried out from a single geological structure or square effect factor. However, the mining conditions of rock burst mines are always changing, and the influencing factors are complex and diverse.
YAN Yaodong1,2, PAN Junfeng1,2, XI Guojun3, JIAO Biao3, SHI Xing3   +4 more
openaire   +1 more source

Small Pillar Driving Technique in Fully Mechanized Working Face of Outburst Coal Seam

Meikuang Anquan, 2020
Aiming at the safety problems caused by poor roadway stability and other factors during gob-side entry driving of 15106 isolated island face in Sijiazhuang Mine, theoretical calculations, numerical simulations and field tests were adopted to determine the coal pillar size and field practice effect of gob-side entry driving in isolated face. The results
openaire   +1 more source