Results 31 to 40 of about 2,971,054 (152)
Journal of Spectroscopy, 2016 Respirable coal particle generated during underground mining is the main cause for gas-dust explosions and coal workers’ pneumoconiosis (CWP) which needs accurate monitoring especially on its concentration.
Wen-Zheng Wang +2 more
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Numerical simulation study of the effect of coal dust on gas explosion overpressure
Scientific ReportsA numerical simulation study was conducted using Ansys Fluent 2023 R1 simulation software to investigate the influence of coal dust on the overpressure of gas explosion. The results demonstrated that the reliability of the selected mathematical model was
Yingxiang Fang +3 more
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An Experimental Study on Wetting of Coal Dust by Surfactant Solution
Advances in Materials Science and Engineering, 2020 Surfactants can improve the wetting performance of the dust-reduction spraying water, thus improving the dust-reduction effect by spray. In this study, the performance of surfactant solution in wetting coal dust was investigated through experiments.
Yidan Jiang +4 more
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Gong-kuang zidonghuaThe humidity in mines significantly affects the monitoring quality of coal mine dust concentration. This study aims to improve the precision of dust concentration monitoring in high-humidity underground coal mine conditions, through investigating the ...
ZHANG Anran
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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
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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
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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
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Miners' views about personal dust monitors [PDF]
"Coal workers' pneumoconiosis is the leading cause of death due to occupational illness among U.S. coal miners. This disease is caused by miners' exposure to excessive levels of respirable coal mine dust.
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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
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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
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