ROCK DUST SURFACE CHEMISTRY MODIFICATIONS FOR ELIMINATING CAKE FORMATION AND IMPROVING DISPERSION IN COAL DUST EXPLOSION MITIGATION APPLICATIONS

Qingging Huang
Rock dust has been historically applied to mitigate the coal dust explosion in either dry or wet form. Dry rock dust performs best in inerting the potential coal dust explosion due to the greatest dispersive properties. However, it undesirably exposes underground coal miners to respirable dust particles which imposes a severe health danger. Wet dust application is able to significantly reduce the floatable dust particles but another problem associated with caking is predominant. Caking phenomenon...
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