Results 181 to 190 of about 5,145 (216)

Influence of particle size distribution on coal dust explosion sensitivity

Powder Technology
Xiaofeng Ren, Chenzi Teng
exaly   +2 more sources

Size Distribution Measurement of Airborne Coal Dust by Optical Particle Counters

American Industrial Hygiene Association Journal, 1974
An optical particle counter has been calibrated for size distribution measurement of airborne coal dust particles. A differential electrical mobility analyzer was used with a fluidized bed dust feeder to produce uniform coal dust particles of a known size for calibration for particles
B Y, Liu, V A, Marple, K T, Whitby, N J, Barsic   +3 more
openaire   +2 more sources

The effects of coal dust concentrations and particle sizes on the minimum auto‐ignition temperature of a coal dust cloud

Fire and Materials, 2017
SummaryFlash fires and explosions in areas containing an enriched combustible dust atmosphere are a major safety concern in industrial processing. An experimental study was conducted to analyse the effects of atmospheric coal dust particle sizes and concentrations on the minimum auto‐ignition temperature (MAIT) of a dust cloud.
Mohammed Jabbar Ajrash, Jafar Zanganeh, Behdad Moghtaderi   +2 more
openaire   +1 more source

Characterization of nano-to-micron sized respirable coal dust: Particle surface alteration and the health impact

Journal of Hazardous Materials, 2021
Chemical and physical properties of coal dust particles significantly influence the inhalation of respirable coal dust by miners, causing several lung diseases such as coal workers' pneumoconiosis (CWP) and silicosis. Multiple experimental techniques, including proximate/ultimate analyses, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS),
Rui Zhang, Shimin Liu, Siyang Zheng
openaire   +2 more sources

The effect of coal particle size on colorimetric analysis of roadway dust

Journal of Loss Prevention in the Process Industries, 2001
Colorimetric analysis of roadway dust is currently a method for monitoring the incombustible content of mine roadways within Australian underground coal mines. To test the accuracy of this method, and to eliminate errors of judgement introduced by human operators in the analysis procedure, a number of samples were tested using scanning software to ...
Kizil, M. S., Peterson, J., English, W.
openaire   +4 more sources

Variability of Particle Size-Specific Fractions of Personal Coal Mine Dust Exposures

AIHAJ, 1995
This study estimated the ratio of the tracheo-bronchial dust fraction to the fraction collected by a respirable dust sampler for a variety of job classifications found in conventional, continuous, and longwall coal mining sections. The ratios could then be applied in epidemiologic studies to existing respirable dust measurements to estimate thoracic ...
N S, Seixas, P, Hewett, T G, Robins, R, Haney   +3 more
openaire   +2 more sources

Prevention and suppression of coal dust explosion in underground coal mines: Role of rock dust type, particle size, proportion, concentration, and thermal properties

Advanced Powder Technology
Aashish Sahu, Devi Prasad Mishra
exaly   +2 more sources

Effects of dust concentration, particle size, and crude oil concentration on the explosion characteristics of oil-immersed coal dust

Fuel
Zhenmin Luo, Xuhan Ding, Chi‑Min Shu   +2 more
exaly   +2 more sources

An Efficient Segmentation Model With Multipath Attention Mechanism Enabling Particle Size Characterization of Coal Dust

IEEE Transactions on Industrial Informatics
Zheng Wang, Zhaoxiang Ji, Xufei Liu
exaly   +2 more sources

Experimental investigation on the impact of water immersion time and particle size on the ignition characteristics of coal dust

Journal of Loss Prevention in the Process Industries
Zhengdong Liu, Chunmiao Yuan
exaly   +2 more sources