Results 41 to 50 of about 1,811 (137)
Analysis of combustion duration and residual gas in secondary explosion of coal dust
Gong-kuang zidonghua, 2018 Secondary explosion experiments of coal dust were carried out by use of 20 L spherical explosion device under the conditions of different coal dust concentration, particle size and ignition energy separately, and influence of coal dust concentration ...
LI Xiaoliang +4 more
doaj +1 more source
Energy Exploration & Exploitation, 2022 8-m super-high fully mechanized mining face has been successfully applied in China, which has brought many difficulties to dust control. The main reason is that the mining height increases and the dust distribution and evolution law are quite different ...
Fang Chen, Jinming Mo, Wei Ma
doaj +1 more source
Meitan kexue jishuGas/coal dust composite explosion is a complex process that combines homogeneous and heterogeneous combustion. The combustion main control mechanism changes dynamically and the explosion mechanism is more complex, resulting in higher explosion ...
Wentao JI +5 more
doaj +1 more source
Near-infrared reflectance spectrum data preprocessing method for coal gangue identification
Gong-kuang zidonghua, 2021 When using near-infrared reflectance spectrum to identify coal gangue, the change of detection distance between spectrum acquisition device and working face and dust interference will affect near-infrared reflectance spectrum. In order to select the best
DING Zhen1, CHANG Boshen2
doaj +1 more source
Intelligent detection technology of dust concentration in mines based on dark channel prior [PDF]
Mine dust is one of the important reasons that endanger mine personnel and equipment. Mine dust concentration detection is an important work content of coal safety management.
Weifeng WANG +4 more
core +1 more source
Scientific Reports, 2023 The ignition and explosion processes of suspended coal dust clouds and their suppression characteristics are important aspects of dust prevention and control.
Tianqi Liu +5 more
doaj +1 more source
Study on effect of oxygen volume fraction on explosion characteristics of silo mixed coal
Meikuang Anquan, 2023 To study the effect of oxygen volume fraction on the explosion characteristics of silo coal, an experiment was conducted on the explosion parameters(maximum pressure pmax, maximum pressure rise rate (dp/dt)max , and explosion index Kst ) of mixed coal in
MULATI·Jueraiti +5 more
doaj +1 more source
Study and Application on Risk Assessment Method of Coal Worker Pneumoconiosis Based on Logistic Regression Model [PDF]
Journal of Risk Analysis and Crisis Response (JRACR), 2018 To research the risk assessment method of coal-worker's pneumoconiosis caused by coal dust exposure, predict the incidence of coal-worker's pneumoconiosis, and provide technical basis for occupational risk management.
Qian Zhang, Deyin Huang, Minyan Li
doaj +1 more source
Mine Dust Concentration Measurement Method Based on Model of Dust Concentration and Humidity
, 2011 According to the coal mine underground work place humidity changes affect the measurement precision of dust concentration, improper spray cause coal with the water loss and wastes a lot of water resources, the paper put forward a correction factor of ...
Xue Zhen Cheng +2 more
core +1 more source
Effect of particle size of coal dust on explosion pressure
Journal of Measurement Science and Instrumentation, 2019 The effect of the particle size of coal dust on explosion pressure and the rising rate of explosion pressure is studied. Three coal dusts from Lingan Coal Mine in Canada and Datong Coal Mine in China are selected to test.
JIAO Feng-yuan +3 more
doaj