Results 31 to 40 of about 1,143 (153)
Computer application for facilitating the choice of Ex equipment [PDF]
MATEC Web of Conferences, 2022 If electrical and non-electrical equipment used in underground mines susceptible to firedamp and coal dust or in other industries with explosion hazard is not proper selected for operating in explosive atmospheres, they are likely to generate an ignition
Pasculescu Vlad Mihai +3 more
doaj +1 more source
Research on alarm method of coal mine extraordinary accidents based on sound recognitio
Gong-kuang zidonghua, 2021 Coal mine gas and coal dust explosion will produce explosive sound. Coal and gas outburst will produce the sound of coal cannon and the supports will produce squeaking and cracking sound.
SUN Jiping, YU Xingche
doaj +1 more source
Study on Suppression of the Coal Dust/Methane/Air Mixture Explosion in Experimental Tube by Water Mist [PDF]
, 2011 In order to develop highly effective and reliable measures to suppress the coal dust/methane/air mixture explosion frequently occurred in coal mine, the effect of the presence of methane on the coal dust explosion was investigated in this study.
An, An +3 more
core +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
Gong-kuang zidonghua, 2020 Characteristics of coal mine gas and coal dust explosion are analyzed: Concentration of O2 in air decreases rapidly, while concentrations of CO2, CO and other toxic and harmful gases increase rapidly; Ambient temperature rises rapidly, and air pressure ...
SUN Jiping
doaj +1 more source
Experimental Study on the Influence of Initial Pressure on Explosion of Methane-coal Dust Mixtures [PDF]
, 2013 Methane-coal dust explosion belongs to chemical explosion which always directly causes fire disasters. When it comes to coal mine, the gas explosion easily leads to extensive burning and forms large area stereo fire finally, due to the big blast power ...
Li, Yuan, Xu, Hongli, Wang, Xishi
core +1 more source
Minimum explosion concentrations of coal dusts with CH4/H2/CO below the gas lower explosion limit
, 2020 A 20-L spherical explosion chamber was used to investigate the explosion characteristics of dust clouds in air with the presence of flammable gas which is lower than its lower explosion limit (LEL).
Schmidt, Martin +5 more
core +1 more source
, 2021 The explosion characteristics of anthracite coal dust with/without small amount of CH4 (1.14 vol %) were investigated by using a 20 L spherical explosion apparatus with an emphasis on the roles of oxygen mole fraction and inert gas.
Schmidt, Martin +5 more
core +1 more source
Scientific Reports, 2022 In order to obtain the propagation and attenuation characteristics of a shock wave gas–coal dust explosion, a diagonal pipeline network was built to carry out a gas–coal dust explosion experiment.
Jinzhang Jia, Xiuyuan Tian
doaj +1 more source
Progress, Challenges, and Outlook for Sodium‐Ion Battery Recycling
CleanMat, EarlyView.This review highlights the progress and challenges of sodium‐ion batteries (SIBs) recycling. It introduces the main material systems of SIBs and their degradation, outlines economic, technical, and environmental requirements, and evaluates four major strategies: pretreatment, pyrometallurgy, hydrometallurgy, and direct regeneration.
Yihao Shen +3 more
wiley +1 more source