Results 21 to 30 of about 892 (152)

Material Evidence Analysis upon Accident Investigation of Gas and Coal Dust Explosion

open access: yesProcedia Engineering, 2012
AbstractThe gas and coal dust explosion accident is one of the most frequent and serious accidents in China coal mine. Based on explosion characteristics parameters after explosion and the change laws of gas and solid components, the comprehensive criteria of the determination of accident property and explosion source point in explosion accident ...
Rongjun Si
exaly   +2 more sources

Variation Law of Hybrid Explosion Characteristic Parameters of Gas and Coal Dust Coupled with Multiple Factors. [PDF]

open access: yesACS Omega
This study aims at extensively investigating the explosion characteristics of a hybrid mixture of gas and coal dust. Accordingly, the standard 20 L spherical explosion system was applied to measure parameters such as the lower explosion limit, maximum explosion pressure, and index of the hybrid mixture of different concentrations of gas and coal dust ...
Peng L, Ji W, Zhang Y, Tian R.
europepmc   +4 more sources

Study on the characteristics and mechanism of inert powder inhibition of gas/coal dust compound explosion

open access: yesMeitan kexue jishu
Gas/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   +2 more sources

Sound identification method of coal mine gas and coal dust explosion based on wavelet scattering transform

open access: yesMeitan kexue jishu
To 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
doaj   +2 more sources

Experimental study on gas and coal dust explosive overpressure and flame dynamic characteristics in an engineering-level test roadway

open access: yesFrontiers in Earth Science, 2023
The continuous development of coal science and technology has made gas and coal dust explosion disasters an important factor that restricts efficient and intelligent coal mining, which seriously threatens the safe production process of coal mines.
Yihui Niu   +6 more
doaj   +1 more source

Environmental Impact of Silicic Magmatism in Large Igneous Province Events

open access: yesGeophysical Monograph Series, Page 133-151., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley  

+1 more source

Influence of Molasses on the Explosion and Decomposition Properties of the Coal Dust Deposited in Underground Mines

open access: yesEnergies, 2023
Coal dust endangers the health and safety of workers in underground coal mines. Therefore, developing coal dust suppressants with dust prevention and explosion-proof properties is critical.
Jianguo Liu   +9 more
doaj   +1 more source

Study on the Characteristics and Influence Factor of Methane and Coal Dust Gas/Solid Two-Phase Mixture Explosions

open access: yesFire, 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
doaj   +1 more source

Research on ultraviolet image perception method of mine electric spark and thermal power disaster

open access: yesGong-kuang zidonghua, 2022
The electric leakage of underground cables and electrical equipment in coal mine, electromotive force discharge induced by high-power radio transmission on metal support and electromechanical equipment metal will generate electric spark, which will then ...
SUN Jiping   +3 more
doaj   +1 more source

Experimental study on ignition of methane and coal dust on the surface of high temperature heat source

open access: yesGong-kuang zidonghua, 2021
The high temperature area of coal spontaneous combustion in coal mine goaf may cause methane/coal dust explosion. Therefore, it is necessary to carry out research on coal spontaneous combustion induced methane/coal dust explosion. The current research on
WANG Yi, WANG Haiyan, ZHANG Lei, HU Lang
doaj   +1 more source

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