<abstract xmlns="http://www.w3.org/1999/xhtml">Floating coal dusts are always produced during coal mining process in the underground mines. In a coal mine and other coal processing or utilizing industries, there are always some potential safety problems, such as coal dust explosion accidents.[1,2] During lignite mining and processing, flammable coal dust is produced. Fire properties of coal dust depend on the particle size. The article deals with the measurement of explosion characteristics of lignite in dependence of particle size at three various concentrations. The measurements were carried out according to EN 14034-1+A1:2011 Determination of explosion characteristics of dust clouds. Part 1: Determination of the maximum explosion pressure pmax of dust clouds. Tests of the lignite dust clouds explosions showed that the maximum value of the pressure was reached at the concentrations of 500 g.m−3 and the particle size between 0 – 56 µm. At this concentration, the highest explosion pressure of 8.25 bar was reached.</abstract>

Floating coal dusts are always produced during coal mining process in the underground mines. In a coal mine and other coal processing or utilizing industries, there are always some potential safety problems, such as coal dust explosion accidents.[1,2] During lignite mining and processing, flammable coal dust is produced. Fire properties of coal dust depend on the particle size. The article deals with the measurement of explosion characteristics of lignite in dependence of particle size at three various concentrations. The measurements were carried out according to EN 14034-1+A1:2011 Determination of explosion characteristics of dust clouds. Part 1: Determination of the maximum explosion pressure pmax of dust clouds. Tests of the lignite dust clouds explosions showed that the maximum value of the pressure was reached at the concentrations of 500 g.m−3 and the particle size between 0 – 56 µm. At this concentration, the highest explosion pressure of 8.25 bar was reached.

The Maximum Explosion Pressure of Lignite in Dependence on Particle Size

Slovak University of Technology in Bratislava

Faculty of Materials Science And Technology In Trnava, Institute of Integrated Safety

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"The Maximum Explosion Pressure of Lignite in Dependence on Particle Size"}

Floating coal dusts are always produced during coal mining process in the underground mines. In a coal mine and other coal processing or utilizing industries,...

The Maximum Explosion Pressure of Lignite in Dependence on Particle Size

Published Online: Sep 03, 2019

Page range: 57 - 64

Received: Apr 30, 2019

Accepted: Jun 26, 2019

DOI: https://doi.org/10.2478/rput-2019-0006

Keywords
Lignite dust clouds, explosion characteristics, maximum explosion pressure, explosion chamber

© 2019 Richard Kuracina et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The Maximum Explosion Pressure of Lignite in Dependence on Particle Size

Published Online: Sep 03, 2019

Page range: 57 - 64

Received: Apr 30, 2019

Accepted: Jun 26, 2019

DOI: https://doi.org/10.2478/rput-2019-0006

KeywordsLignite dust clouds, explosion characteristics, maximum explosion pressure, explosion chamber

© 2019 Richard Kuracina et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Lignite dust clouds, explosion characteristics, maximum explosion pressure, explosion chamber