Results 71 to 80 of about 166,116,027 (191)

Coal Dust Particle Size Survey Of U. S. Mines [PDF]

The National Institute for Occupational Safety and Health (NIOSH) and the Mine Safety and Health Administration (MSHA) conducted a joint survey to determine the range of coal particle sizes found in dust samples collected from intake airways of US coal ...

core   +2 more sources

Investigation of the Minimum Ignition Energy Required for Combustion of Coal Dust Blended with Fugitive Methane

Fire
Ventilation Air Methane (VAM) significantly contributes to global warming. Capturing and mitigating these emissions can help combat climate change. One effective method is the thermal decomposition of methane, but it requires careful control to prevent ...
Jafar Zanganeh, Mohammed J. Ajrash Al-Zuraiji, Behdad Moghtaderi   +2 more
doaj   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source

The effect of particle size distributions on dust storm attenuation prediction for microwave propagation

, 2010
Dust storm effect on microwave signal attenuation has attracted many researchers recently. Many prediction models have been developed in order to predict microwave signal attenuation during the dust storm.
Elfatih A. A. Elsheikh, A. H. M. Zahirul Alam, Islam, Md. Rafiqul, Al-Khateeb, Khalid A. Saeed, Khalid Al-Khateeb, Alam, A. H. M. Zahirul, Ismail, Ahmad Fadzil, Zain Elabdin, Elsheikh, Elfatih A. A., Ahmad Fadzil Ismail, Elabdin, Zain, Md. Rafiqul Islam   +11 more
core   +1 more source

Suppression effect of solid inertants on coal dust explosion

Journal of Measurement Science and Instrumentation, 2018
The effect of solid inertants like rock dust on explosion suppression was experimentally tested.By adding solid inertants with different concentrations into three kinds of coal dust,the maximum explosion pressure Pmaxand the rate of explosion pressure ...
TAN Ying-xin, CAO Wei-guo, ZHANG Yun, CHANG Hao   +3 more
doaj  

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

Safety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang, Kang Yang, Jiang Dong, Lidong Xing, Bing Chen, Changke Chen   +5 more
wiley   +1 more source

Membrane Gas Separation for CO2 Capture From Flue Gas: Materials, Modules, Processes, and Application Prospects for Coal‐Fired Power Plant Retrofitting

Safety Science and Technology, EarlyView.
This review systematically covers the full CO₂ flue gas membrane separation chain, finding it cuts energy use by ∼30% versus amine methods, yet faces stability and cost hurdles for large‐scale application. ABSTRACT As global climate change becomes increasingly severe, carbon capture, utilization, and storage (CCUS) technologies have emerged as a ...
Liang Jinqiang, Jia Zhihao, Hong Yiyang, Zhang Jiaxuan, Li Tong, Mei Yukun, Liu Danzhu, Liu Duiping, Li Qiang   +8 more
wiley   +1 more source

Recommendations for a new rock dusting standard to prevent coal dust explosions in intake airways [PDF]

"The workings of a bituminous coal mine produce explosive coal dust for which adding rock dust can reduce the potential for explosions. Accordingly, guidelines have been established by the Mine Safety and Health Administration (MSHA) about the relative ...

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Variation on Toxic and Inflammatory Potential of Coal Smoke of Different Sources From a Region With High Lung Cancer Risk

Environmental Toxicology, EarlyView.
ABSTRACT Excess lung cancer risk in Xuanwei and Fuyuan, China, has been attributed to household air pollution from use of a locally sourced smoky (bituminous) coal. However, the carcinogenic mechanisms remain unclear. Given the important role of inflammation in lung cancer development, this study compared the proinflammatory potentials of the ...
Yongliang Zhang, Wei Hu, Nathanial Rothman, Dingyu Liu, Jihua Li, Jun Xu, Bofu Ning, Roel Vermeulen, Qing Lan, Flemming R. Cassee, George S. Downward   +10 more
wiley   +1 more source

Study on wetting and dust suppression characteristics of composite dust suppressant based on enhancement effect of fluorocarbon surfactant

Meikuang Anquan
Fluorocarbon surfactants could change coal structure and improve wettability characteristics, thus, it plays a significant role in coal dust prevention and control.
Chunshan ZHENG, Cancan LI, Bingyou JIANG, Sheng XUE, Xiaohan WANG, Suqian QIAN   +5 more
doaj   +1 more source