Return to search

MODERN ROCK DUST DEVELOPMENT AND EVALUATION FOR USE IN UNDERGROUND COAL MINES

Following the promulgation of new permissible respirable dust standards by MSHA in 2014, new alternative rock dusts were created that combined the advantages of current industry applications while potentially reducing miner exposure to respirable dust. Research was performed to compare the explosion suppressing and ejection characteristics of three new types of rock dust to existing rock dust types. Explosion suppression tests were conducted in a 38-L chamber where pressures were recorded. Angle of ejection tests were conducted using a high explosive shock tube and high speed photography to determine angle of ejection and lift velocity. A comprehensive comparison of the results of these tests shows that these newly developed dusts have improved results for flame suppression and ejection when compared to typical wet dust applications.

Identiferoai:union.ndltd.org:uky.edu/oai:uknowledge.uky.edu:mng_etds-1030
Date01 January 2016
CreatorsEades, Robert
PublisherUKnowledge
Source SetsUniversity of Kentucky
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceTheses and Dissertations--Mining Engineering

Page generated in 0.0021 seconds