Results 11 to 20 of about 27,122 (203)
Sound Recognition Method of Coal Mine Gas and Coal Dust Explosion Based on GoogLeNet [PDF]
Entropy, 2023 To solve the problems of backward means of coal mine gas and coal dust explosion monitoring, late reporting, and low leakage rate, a sound recognition method of coal mine gas and coal dust explosion based on GoogLeNet was proposed.
Xingchen Yu, Xiaowei Li
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Variation and Prediction Methods of the Explosion Characteristic Parameters of Coal Dust/Gas Mixtures [PDF]
Energies, 2021 In order to investigate the change law of the explosion characteristic parameters of hybrid mixture of coal dust and gas, and then establish an effective prediction method of these parameters, the maximum explosion pressure, explosion index, and lower ...
Yingquan Qi +5 more
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Assessment of gas and dust explosion in coal mines by means of fuzzy fault tree analysis
International Journal of Mining Science and Technology, 2018 During the past decade, coal dust and gas explosions have been the most two serious types of disasters in China, threatening the lives of miners and causing significant losses in terms of national property. In this paper, an evaluation model of coal dust
Shulei Shi, Bingyou Jiang, Xiangrui Meng
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Gong-kuang zidonghua, 2023 The characteristics of coal mine gas and coal dust explosion are analyzed. The gas concentration changes suddenly. The ambient temperature rises rapidly. The air pressure rises suddenly. It produces fireballs and smoke.
SUN Jiping +3 more
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Sound Identification Method for Gas and Coal Dust Explosions Based on MLP
Entropy, 2023 To solve the problems of backward gas and coal dust explosion alarm technology and single monitoring means in coal mines, and to improve the accuracy of gas and coal dust explosion identification in coal mines, a sound identification method for gas and ...
Xingchen Yu, Xiaowei Li
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Numerical simulation study of the effect of coal dust on gas explosion overpressure [PDF]
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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Experimental Study on the Influence of Different Coal Species on Gas and Coal Dust Explosion
Meikuang Anquan, 2020 To further explore the propagation law of gas coal dust explosion with different coal species involved, 3 kinds of representative coal dust were tested in a self-made semi-enclosed pipe, and the flame propagation speed, flame surface luminescence ...
JING Guoxun, SHAO Hongyuan, WU Yulou, GUO Shaoshuai, LIU Chuang, ZHANG Shengqi
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Gong-kuang zidonghua, 2020 Video image characteristics of gas and coal dust explosion are analyzed: Explosive fireball is usually red with high brightness, high temperature and strong radiation of infrared and ultraviolet rays, and area of the fireballs expands rapidly; Area ...
SUN Jiping, FAN Weiqiang
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Coal mine gas and coal dust explosion sound recognition method based on wavelet packet energy
Gong-kuang zidonghua, 2023 At present, it is difficult to meet the emergency rescue needs of gas and coal dust explosion accidents due to the rate of missing and false alarms in coal mine gas and coal dust explosion monitoring. In order to solve the above problems, a coal mine gas
YU Xingchen, WANG Yunquan
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Pressure and Flame Propagation Characteristics of Suspended Coal Dust Explosions Induced by Gas Explosions. [PDF]
ACS OmegaIn order to explore the pressure and flame propagation characteristics of gas-coal dust composite explosions, a semiclosed pipeline explosion test platform was built. The shock wave overpressure and explosion flame propagation law of different concentrations of suspended coal dust participating in gas explosions were studied in depth through ...
Xun Jing G, Sun Y, Shuai Guo S.
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