Results 61 to 70 of about 4,125 (229)
The development of explosion-proof devices for methane mines
, 2017 Górnictwo węgla od samego początku eksploatacji borykało się z zagrożeniem metanowym. Dochodziło do katastrof spowodowanych wybuchem metanu i pyłu węglowego. Przyczyną wybuchów były lampy płomienne oraz urządzenia elektryczne.
Gierlotka, S.
core +1 more source
Meikuang AnquanTo investigate the effect of N2-water mist gas-liquid two-phase coupling on the propagation of methane explosion flames, based on a self-made mesoscale shock wave pipeline, we investigate the effect of N2 at different injection pressures on the ...
Licong ZHANG, Siman LI, Jingde XU
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Spray‐flame synthesis enables highly flexible and scalable production of multinary and high‐entropy oxide nanoparticles due to high synthesis temperatures with subsequent quenching. Temperature‐dependent in situ diffraction of as‐synthesized materials clearly reveals entropy stabilization in rock salt lattices, while spinels—featuring tetrahedral and ...
Mohammed‐Ali Sheikh +7 more
wiley +1 more source
Explosion of lycopodium-nicotinic acid-methane complex hybrid mixtures
, 2015 With the terms “complex hybrid mixtures“, we mean mixtures made of two or more combustible dusts mixed with flammable gas or vapors in air (or another comburent).In this work, the flammability and explosion behavior of selected complex hybrid mixtures ...
A. Saliva +10 more
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Proposal of revision for transducers setup of Coal Mine Safety Regulatio
Gong-kuang zidonghua, 2014 The paper proposed that wind transducers, air velocity transducers and methane transducers in intake airway should be setup for alarm of coal (rock) and gas outburst additionally, full scale methane transducers or high-low concentration methane ...
SUN Jiping
doaj +1 more source
Study on Gas Product of Gas Explosion Under Different Ignition Modes
Meikuang Anquan, 2020 A self-developed gas explosion system induced goaf spontaneous combustion was used to study the variation of methane products ignited by electric spark and high temperature source.
WANG Haiyan, ZHANG Lei, LYU Jiaxi
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Energy Science &Engineering, EarlyView.This study investigates how iron particles burn across a wide size range, revealing late‐stage nanoparticle release and a previously unrecognised shift in combustion behaviour near 118 µm. High‐speed imaging, PMT diagnostics and SEM analyses have been conducted.
Zakaria Mansouri
wiley +1 more source
Vented Hybrid Explosions of Methane and Coal Dust
Proceedings of the Seventh International Seminar Fire and Explosion Hazards, 2013 The interaction of a vented methane explosion flame front (and induced flow) with a coal dust layer just prior to the vent exit, was experimentally investigated in a small cylindrical explosion vessel with two different open vent areas at low level, using different methane/air mixtures and different amounts of coal in the layer.
Yan, ZX +3 more
openaire +2 more sources
Energy Science &Engineering, EarlyView.This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin +4 more
wiley +1 more source
Energy Science &Engineering, EarlyView.A stress wave propagation model for coal‐rock combinations under in situ stress was established. Taking a coal mine in Huainan, China as the engineering background, isotropic and anisotropic numerical models were constructed. Field engineering practices were carried out to verify the reliability of the conclusions.
Jianyu Zhang +6 more
wiley +1 more source