“Innovative Rock-Dusting System to Assist with Respirable Dust Compliance”
- Published: Friday, 25 December 2015 10:45
Dear Coal Age:
In reference to the article “Innovative Rock-Dusting System to Assist with Respirable Dust Compliance” published in the October edition of Coal Age, I would like to clarify the appropriate use of wet rock dust, and specifically, foam rock dust, to treat an underground coal mine. While I acknowledge that foam rock dust could be an “innovative” tool to address the respirable dust rule, it is not an innovative method to mitigate an explosion in an underground coal mine. Furthermore, foam rock dust is not currently allowed by MSHA as the primary method of dusting a mine, as it must be used in combination with dry rock dust.