Leadership

SHUTTING OUT AIR IN COAL PILE REDUCES DANGER FROM FIRES

Issue 11 and Volume 93.

SHUTTING OUT AIR IN COAL PILE REDUCES DANGER FROM FIRES Method Found for Eliminating Possibilities of Fire in Large Hills of Stored Coal A THOUSAND tons of coal a day, that is the requirement of The Dow Chemical Company’s plant located on the Tittabawasse River at Midland, Mich. And when an industry’s coal consumption reaches figures of such proportions, the problem of handling and storing it becomes a major one. Until 1937, the coal was stored in conical piles of 8,000 to 12,000 tons each. It was dumped directly from lake boats and piled loosely, just as it fell, thus allowing the air free entry. Furthermore, the fine and coarse particles soon separated, the former becoming more firmly compacted than the latter. When a second load was dumped on top of the first one, the same thing happened, and so on, forming a pile made up of alternate layers of…

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