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Explosion Characteristics and variation of oxidized coal dust
Meikuang 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
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Ignition temperature and explosion pressure of suspended coal dust cloud under different conditions and suppression characteristics [PDF]
Scientific Reports, 2023 The ignition and explosion processes of suspended coal dust clouds and their suppression characteristics are important aspects of dust prevention and control.
Tianqi Liu +5 more
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Meikuang Anquan, 2022 In view of the characteristics of large coal dust production, fast flow rate and high gas content in the air directional drilling of broken soft coal seam, the dust removal device of negative pressure suction and classification purification was designed ...
CHU Zhiwei
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Study on coal dust diffusion law and new pneumatic spiral spray dedusting technology at transfer point of mine cross roadway [PDF]
PLoS ONE, 2022 In order to solve the problem of coal dust pollution at the transfer point, a three-dimensional numerical model of wind flow-coal dust at the loading point of underground rubber run was established by computational fluid dynamics (CFD) discrete particle ...
Deji Jing +5 more
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Numerical simulation study of the effect of coal dust on gas explosion overpressure [PDF]
Scientific ReportsA numerical simulation study was conducted using Ansys Fluent 2023 R1 simulation software to investigate the influence of coal dust on the overpressure of gas explosion. The results demonstrated that the reliability of the selected mathematical model was
Yingxiang Fang +3 more
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Advances in Materials Science and Engineering, 2020 Currently, spraying is a main means for dust prevention and control in underground coal mines. The dust-suppression efficiency via spraying is highly correlated with the wettability of coal dusts.
Pengfei Wang +4 more
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Retracted: Effect of coal dust parameters on gas‐coal dust explosions in pipe networks
Energy 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
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Energies, 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
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Gong-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
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Gong-kuang zidonghua, 2019 In order to research the minimum ignition temperature variation law of coal dust cloud with different coal quality, eight coal samples including lignite, long-flame coal, non-caking coal, gas coal, charred coal, lean coal, meagre coal and anthracite were
LIU Tianqi
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