WHAT IS COAL DUST?
,\ writer in "The Science and. Art of Mining." says that pure coal dust is more or less composed : of carbon, and contains a small part of volatile or ash matter ; it is very sensitive to heat and light, and when expose*! to increased dryness its property is greatly enhanced for feeding ilaine and adding, violence when .complete combustion occurs. Coal dust is only dangerous when dry and impregnating the atmosphere in infinite particles. Should the dust become heated by a blown shot the rise >.,;' its temperature gives oIT a certain proportion of lire-damp, and the quantity depending upon the texture or crumbling nature of the coal is instantly ignited, the flainc"created going fiirt her to increase the. temperature, and the explosion ex tent led with the ever-evolving gas from ihe dust. (10J5.)
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Lake County Press, Issue 2138, 4 October 1906, Page 2
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136WHAT IS COAL DUST? Lake County Press, Issue 2138, 4 October 1906, Page 2
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