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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   +2 more sources

Explosion Characteristics and variation of oxidized coal dust

open access: yesMeikuang Anquan, 2023
Oxidized coal is a coal body that has undergone the process of warming up and cooling down, and has been widely used in mine fire area start-up, stratified mining, and re-mining of residual coal, etc.
HE Jie, CHENG Kai, ZHANG Jin
doaj   +2 more sources

Effects of particle size and moisture on respirable coal dust generation in pakistan’s informal bituminous mines [PDF]

open access: yesScientific Reports
Respirable coal dust remains a major occupational hazard in informal mining operations in Pakistan, where high-ash, low-moisture bituminous coals are handled without engineered dust-control systems.
Sohail Khan, Ziling Song
doaj   +2 more sources

Effect of coal dust parameters on gas-coal dust explosions in pipe networks

open access: yesGeomatics, Natural Hazards & Risk, 2022
To study the effects of coal dust particle size and mass of coal dust on gas-coal dust hybrid explosions, we conducted sedimentary gas-coal dust explosion experiments using a pipe network system that included multiple components and individual ...
Jia Jinzhang, Wang Fengxiao, Li Jie
doaj   +1 more source

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

Numerical simulation of pulverized coal migration law in air directional drilling in broken soft coal seam

open access: yesMeikuang Anquan, 2022
In order to study the effect of particle size and air volume on the deposition, migration and distribution law of pulverized coal in the annulus of drill pipe and hole wall, the Euler-Euler model is used to numerically simulate the gas-solid two-phase ...
NIE Chao, WANG Yi, YAO Yafeng
doaj   +1 more source

Explosive Conditions and Products Analysis of Different Particle Sizes Fat Coal and Its Explosive Residue

open access: yesMeikuang Anquan, 2020
Various particle sizes and its explosive residues were tested using 20 L spherical explosive device, and the effect of particle size on the explosive conditions and explosive products of coal dust and solid residues was analyzed under different coal ...
LIU Zhentang, ZHOU Xifang, LI Xiaoliang, HONG Sen, LIN Song, QIAN Jifa
doaj   +1 more source

Modelling Coal Dust Explosibility of Khyber Pakhtunkhwa Coal Using Random Forest Algorithm

open access: yesEnergies, 2022
Coal dust explosion constitutes a significant hazard in underground coal mines, coal power plants and other industries utilising coal as fuel. Knowledge of the explosion mechanism and the factors causing coal explosions is essential to investigate for ...
Amad Ullah Khan   +3 more
doaj   +1 more source

Influencing factors of coking coal dust explosion pressure and flame and effect of inert dust on its explosion suppression

open access: yesScientific Reports, 2022
Coking coal is a precious resource in the world and an important raw material for the production of steel, but it is easy to cause explosion accidents in the process of coking coal mining, which is very detrimental to safe production.
Tianqi Liu   +5 more
doaj   +1 more source

Research on quantitative model of coal dust settlement effect based on multiple regression and path analysis

open access: yesMeikuang Anquan, 2022
In order to study the influencing factors of coal dust settlement effect and quantitatively express the relationship between the factors, based on the industrial analysis of coal sample, surface tension experiment and settlement experiment, the ...
WANG Jianguo   +2 more
doaj   +1 more source

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