Details:

Alternative Title:
J Loss Prev Process Ind
Publisher's site:
http://dx.doi.org/10.1016/j.jlp.2015.06.009
Personal Author:
Harris, Marcia L. ; Sapko, Michael J. ; Zlochower, Isaac A. ; Perera, Inoka E. ; Weiss, Eric S.
Harris, Marcia L. ; Sapko, Michael J. ; Zlochower, Isaac A. ; Perera, Inoka E. ; Weiss, Eric S. Less -
Description:
The Mine Safety and Health Administration (MSHA) specification for rock dust used in underground coal mines, as defined by 30 CFR 75.2, requires 70% of the material to pass through a 200 mesh sieve (<75 µm). However, in a collection of rock dusts, 47% were found to not meet the criteria. Upon further investigation, it was determined that some of the samples did meet the specification, but were inadequate to render pulverized Pittsburgh coal inert in the National Institute for Occupational Safety and Health (NIOSH) Office of Mine Safety and Health Research (OMSHR) 20-L chamber. This paper will examine the particle size distributions, specific surface areas (SSA), and the explosion suppression effectiveness of these rock dusts. It will also discuss related findings from other studies, including full-scale results from work performed at the Lake Lynn Experimental Mine. Further, a minimum SSA for effective rock dust will be suggested.
Subject:
[+]
Article
Dust Explosion
Explosion Prevention
Mining
Particle Size
Specific Surface Area

Source:
J Loss Prev Process Ind. 37:33-38.
Pubmed ID:
26523092
Pubmed Central ID:
PMC4627900
Document Type:
Journal Article
Funding:
CC999999/Intramural CDC HHS/United States
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:0a4d53b48d23b32774009f19f1a7a26e82ae9f668c9e70433bbc0df98ed07f34
File Type:

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