Results 1 to 10 of about 3,977 (251)

Particle size change of solid residue and flammability analysis of gaseous residue of lignite coal dust explosion

open access: yesGong-kuang zidonghua, 2021
The solid and gaseous residues of coal dust explosion are the physical evidence for analyzing the detonation site and propagation path and the basis for deploying rescue work.
ZHU Chao, WANG Hao
doaj   +1 more source

Explosion Flame and Pressure Characteristics of Nonstick Coal Dust and the Inhibition of Explosion Suppressants

open access: yesJournal of Chemistry, 2022
Nonstick coal is widely distributed in the world and is an important resource for human beings. The explosion characteristics and explosion suppression of nonstick coal dust are increasingly concerning.
Tianqi Liu   +6 more
doaj   +1 more source

On the Features of of Dust Explosions [PDF]

open access: yes, 2011
The research presented in this paper focuses on the importance of the prevention and mitigation of dust explosions by knowing the effect of single and combined parameters on the explosion severity. Experiments and a companion modelling study were conducted at varying the size fractions, the ignition source, the initial turbulence level, the ...
Almerinda Di Benedetto   +3 more
openaire   +2 more sources

Research on perception method of coal mine gas and coal dust explosion based on explosion sound recognition

open access: yesGong-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
doaj   +1 more source

Comparative Analysis of Fire and Explosion Properties of Lycopodium Powder

open access: yesEnergies, 2023
Lycopodium (L.) clavatum powder, due to its uniform particle size distribution and low equilibrium moisture content, is often used as a reference material and a calibration benchmark for dust combustion and dust explosion studies.
Bożena Kukfisz   +4 more
doaj   +1 more source

Experimental Study on the Influence of Different Coal Species on Gas and Coal Dust Explosion

open access: yesMeikuang 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
doaj   +1 more source

Research on secondary explosion characteristic of coal dust

open access: yesGong-kuang zidonghua, 2018
Influence of concentration, particle size and ignition energy of coal dust on secondary explosion characteristic of coal dust were studied by use of 20 L spherical explosion device, and the secondary explosion characteristic of coal dust was compared ...
LIU Haoxiong   +5 more
doaj   +1 more source

Retracted: Effect of coal dust parameters on gas‐coal dust explosions in pipe networks

open access: yesEnergy Science & Engineering, 2022
To study the effects of particle size of coal dust and mass concentration of coal dust on gas‐coal dust explosions, we conducted sedimentary gas‐coal dust explosion experiments using a pipe network system that included multiple components and individual ...
Jia Jinzhang   +4 more
doaj   +1 more source

Research of influence factors on characteristic parameters of coal dust explosio

open access: yesGong-kuang zidonghua, 2014
Influence of particle size, concentration and ignition energy of coal dust on the maximum pressure and its rising rate of coal dust explosion were researched by use of 20 L spherical explosion equipment. The research results show that under the condition
LIU Zhentang, GUO Rulin, XI Runze
doaj   +1 more source

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