Results 61 to 70 of about 5,273,755 (149)

Research on Debris Characteristics and Wear Mechanism of Gear Material 18CrNiMo7-6 Used in Mining Reducer Under Dust-Contaminated Lubrication

Lubricants
The lubrication of mining reducer is subjected to the contamination of coal rock dust, and this contamination has extremely serious influence on the wear life of reducers.
Xinyu Pang, Yixiang He, Xun Chen, Jiapeng Zhao, Xiting Luo, Kaibo Lv   +5 more
doaj   +1 more source

Prediction of heterogeneous nucleation condensation effect on the surface of respiratory coal dust and test of dust reduction test

Meitan xuebao
Surface wettability of coal dust particles is an important factor restricting the efficiency of wet dust removal. Heterogeneous nucleation condensation on the surface of coal dust particles is a means without any pollution, without considering the ...
Hanyi LIN, Liang YUAN, Bingyou JIANG, Yuqian ZHANG, Yifan WANG, Haoyu WANG   +5 more
doaj   +1 more source

Dust removal efficiency of high pressure atomization in underground coal mine

International Journal of Mining Science and Technology, 2018
To master theoretical calculation for dust removal efficiency of high pressure atomization in an underground coal mine, the corresponding atomization characteristics and dust removal efficiency were both comprehensively studied in theory by virtue of ...
Pengfei Wang, Xuanhao Tan, Weimin Cheng, Gang Guo, Ronghua Liu   +4 more
doaj   +1 more source

Major factors influencing local dust radiative forcing [PDF]

, 2008
In conclusion, it is shown in this paper that surface albedo variations over desert regions can have a significant influence on the solar and net radiative forcing of desert dust.
Otto, Sebastian, Bierwirth, Eike, Bauer, Stefan, Trautmann, Thomas, Wendisch, Manfred   +4 more
core  

Wet electrostatic scrubbing for high efficiency submicron particle capture [PDF]

, 2011
Exposure to fine particulate matter has been associated with serious health effects, including respiratory and cardiovascular disease, and mortality.
D'Addio, Luca
core   +1 more source

Coal dust explosibility and particle-size distribution [PDF]

"An absorption/desorption model of particle reactivity was employed to describe the observed relationship between two apparently diverse phenomena which have been the subject of considerable study at the U.S. Bureau of Mines, viz.

core  

Study on the Explosion Mechanism of Low-Concentration Gas and Coal Dust

Fire
In coal mines, the mixture of coal dust and gas is more ignitable than gas alone, posing a high explosion risk to workers. Using the explosion tube, this study examines the explosion propagation characteristics and flame temperature of low-concentration ...
Li Liu, Xinyi Mao, Yongheng Jing, Yao Tang, Le Sun   +4 more
doaj   +1 more source

Performance analysis of a novel combined water bath dust collector with impingement water bath and spray string grid

Zhongguo dianli
Coal-fired power plants' coal handling systems generate substantial dust during operation. Improper purification treatment will cause severe environmental pollution.
Wei CHENG, Yingmin ZHANG, Chao NIU, Zaixian YE, Yonggang ZHENG, Lijun FANG   +5 more
doaj   +1 more source

Experimental Research on Bituminous Coal Dust Explosibility

工程科学与技术, 2009
:In order to evaluate and control the hazards of coal dust explosion in coal mines and power plants, the explosion characteristics of bituminous coal dusts were tested in a Siwek 20 litre spherical vessel.
Li Hua, Gao Cong, Su Dan, HuangWei-xing
doaj  

Research on dust control mechanism of coal baffle based on CFD-DPM model

Meikuang Anquan
The fully mechanized mining face is among the most critical areas for dust pollution within a mine, in large mining height faces, the elevated coal fall height during the mining process facilitates the dispersion of particulate matter from the coal ...
Zhenping WANG, Puhao WU, Hang WANG, Duo ZHANG   +3 more
doaj   +1 more source