Leadership

SOME QUESTIONS AND ANSWERS ON DUST EXPLOSION HAZARDS

Issue 1 and Volume 93.

SOME QUESTIONS AND ANSWERS ON DUST EXPLOSION HAZARDS Explanatory Material Given on False and True Statements Which Follow Principal Engineer in Charge, Chemical Engineering Research Division, U. S. Dept, of Agriculture IT is generally know that the dust explosion hazard exists in more than 28,000 industrial plants in the United State. (No. 1). By “dust explosion” is meant a rapid burning of a cloud of combustible dust in suspension in air. In order to have a dust explosion two things are necessary: (1) a cloud of combustible dust in suspension in air in proper proportions; (2) a source of ignition. There is no such thing as a spontaneous dust explosion. The combustible dust and air mixture must be ignited. (No. 17, No. 19, No. 24). Dust Propagates Flames When flame propagates through a dust cloud or. in other words, when a dust explosion occurs, the air and the products of…

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