Results 191 to 200 of about 43,826 (248)
Process Safety and Environmental Protection, 2019 Abstract Coal dust explosion constitutes an ever-present hazard in underground coal mines worldwide. This study examines the effects of important parameters, such as, dust particle size, dust concentration and dust-dispersion-air pressure on rock dust inertant requirement for suppressing coal dust explosion using a Godbert-Greenwald (GG) furnace.
Sikandar Azam, Devi Prasad Mishra
exaly +4 more sources
Coal dust particle size survey of US mines
Journal of Loss Prevention in the Process Industries, 2007 Abstract 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 mines. The last comprehensive survey of this type was performed in the 1920s.
Michael J. Sapko +2 more
exaly +4 more sources
Influence of particle size polydispersity on coal dust explosibility
Journal of Loss Prevention in the Process Industries, 2018 Abstract The effect of particle size polydispersity (σD) on coal dust explosibility was studied using a 20-L spherical explosion test apparatus. Four kinds of blends with a fixed median diameter (D50) of 95 μm but varying σD of 1.18, 1.70, 1.96 and 2.40, were prepared by mixing original coal samples with relative low σD.
Shang‐Hao Liu +6 more
exaly +4 more sources
A Novel Coal Dust Characteristic Extraction to Enable Particle Size Analysis
IEEE Transactions on Instrumentation and Measurement, 2021 Coal particle characteristic extraction is essential to prevent dust explosions. It is traditionally analyzed by manual screening, which is relatively time-consuming and cannot automatically capture outlining. To address this issue, an accurate and automatic particle image segmentation method is highly demanded in the smart mine.
Zheng Wang +3 more
openalex +2 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 ...
Noah Seixas +3 more
+5 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Powder Technology, 2016
Abstract In the present research work, the effects of particle size (D 50 ) and size dispersity (σ D ) on the explosion severity of coal dust were investigated using a 20 L spherical explosion vessel. Coal dust samples with similar median diameter (D 50 ) and different size dispersity (σ D ) and similar size dispersity (σ D ) and different size ...
Qingzhao Li +5 more
openaire +3 more sources
Abstract In the present research work, the effects of particle size (D 50 ) and size dispersity (σ D ) on the explosion severity of coal dust were investigated using a 20 L spherical explosion vessel. Coal dust samples with similar median diameter (D 50 ) and different size dispersity (σ D ) and similar size dispersity (σ D ) and different size ...
Qingzhao Li +5 more
openaire +3 more sources