Results 81 to 90 of about 1,811 (137)

Spatial distribution and migration law of respirable dust in fully mechanized mining face

Meikuang Anquan
For the problem that the dust sampling method can only measure the dust mass concentration at fixed working locations, and can not systematically reflect the spatial distribution characteristics and migration rules of the dust mass concentration in the ...
Xiangjun CHEN, Xiangyang YE, Yibo LI, Peiqi ZUO   +3 more
doaj   +1 more source

An Experimental Approach to the Determination of Explosible Lean Limits for Coal Dust and Methane Mixtures

, 1989
A current program of research on the explosibility of coal dust/methane mixtures is described. During the study an explosion test chamber based on a novel design has been developed.
Gillies, Stewart, Golledge, P., Urbanik, W., Davis, R., Jensen, B.   +4 more
core  

Pemanfaatan gliserol hasil samping produksi biodiesel jarak pagar sebagai komponen coal dust suppressant

, 2011
Jatropha curcass L oil based biodiesel industry development was not longer established due to its low added value, especially, after the world oil price stabilized.
Bunyamin, Anas
core  

The Dust Explosion Characteristics of Coal Dust in an Oxygen Enriched Atmosphere

, 2012
The ability to mix pulverised coal with oxygen at concentrations greater than the currently applied 21% may well provide advantages for burner design in oxy/coal fired systems.
Norman, Frederik, Berghmans, Jan, Verplaetsen, Filip   +2 more
core   +1 more source

Consideration on the Explosion Limit of Coal Dust-Rock Dust Mixtures in the High Concentration Region

Journal of the Mining Institute of Japan, 1983
Heiji ENOMOTO, Wataru ISHIHAMA
openaire   +3 more sources

DETERMINATION OF THE POLYCYCLIC AROMATIC HYDROCARBONS CONCENTRATION IN COAL DUST PRODUCED AT COAL TRANSPORTATION AND PROCESSING ENTERPRISES

Vestnik of Kuzbass State Technical University, 2022
Ekaterina V. Zhuravleva, Vera A. Krasilova, Natalia V. Zhuravleva   +2 more
openaire   +1 more source

Experimental approach to the determination of explosible lean limits for coal dust and methane mixtures

, 1988
A program of research on the explosibility of coal dust/methane mixtures is described. An explosion test chamber uses a rotating drum concept for dust dispersion and infra-red sensors for dust concentration measurement.
Gillies A.D.S., Jensen B., Urbanik W., Davis R., Golledge P.   +4 more
core  

Measurements of respirable dust concentrations by using various samplers in underground coal mines

, 1986
The specific etiological factors of coal workers' pneumoconiosis have not yet been fully understood. The prevention of this occupational disease depends upon elimination or suppression of airborne dust to which miners are exposed. The Canada Centre for Mineral and Energy Technology's (CANMET) research on respirable dust in underground coal mines ...
openaire   +1 more source

Inaccuracy Of Area Sampling For Measuring - The Dust Exposure Of Mining Machine Operators In Coal Mines [PDF]

This study examines the accuracy of area sampling for measuring the dust exposure of mining machine operators in coal mines. The specific objective of this research was to find locations where an area sampler might work better than earlier studies have ...

core  

Relationship between long pressure short extraction dust removal performance and dust source movement path in comprehensive heading face of coal mines [PDF]

Long pressure short extraction ventilation and dust removal method is one of the effective methods for removing high mass concentration dust in the excavation area of coal mine comprehensive heading face. Especially, the local flow field generated by the
Yang ZHAO, Bingyou JIANG, Hanyi LIN, Haoyu WANG, Yifan WANG   +4 more
core   +1 more source