Results 11 to 20 of about 1,143 (153)
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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Meikuang Anquan, 2022 The existing research on the morphology characteristics of solid residues of coal dust explosion is qualitative. In order to quantitatively study the morphology characteristics of solid residues of coal dust explosion, the 20 L spherical explosion system
ZHU Chao, WANG Hao
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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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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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Fire, 2023 This research aimed to the characteristics and influence factor of methane and coal dust gas/solid two-phase mixture explosions by experiment. Through comparative analysis of flame propagation characteristics, pressure, flame temperature and products ...
Yue Wang +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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Characterization of explosion propagation of coal dust deposited by gas explosion convolutions in closed pipelines [PDF]
Meitan xuebaoTo explore the propagation characteristics of gas explosion-induced coal dust detonations in enclosed pipelines, a custom-developed experimental system was employed for gas explosions involving accumulated coal dust.
Bingyou JIANG +6 more
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Sound identification method of coal mine gas and coal dust explosion based on wavelet scattering transform [PDF]
Meitan kexue jishuTo solve the problems of high false alarm rate and leakage rate of coal mine gas and coal dust explosion disaster alarm methods, and improve the accuracy of coal mine gas and coal dust explosion perception, sound identification method of coal mine gas ...
Xingchen YU, Xiaowei LI
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Energies, 2019 Coal and oil shale are often mined and utilized together, and mixed dust is easily formed in these processes. In order to ensure safe production in these processes, the explosion characteristics of mixed dust were studied. Using a Godbert-Greenwold (G-G)
Junfeng Wang +5 more
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Coal mine safety production management countermeasures of Jinglaoyuan Coal Mine of Tiemei Group
Meikuang Anquan, 2021 Aiming at the dangerous and harmful factors existing in the production process of Jinglaoyuan Coal Mine of Tiemei Group, this paper makes a comprehensive analysis through field investigation, combines with the geological conditions, development layout ...
CHEN Lijie, SUN Jiahe, ZHAO Qian
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