Size | Sieve sizes | Use |
---|---|---|
Run of mine | goes through 8-inch holes | |
Lump | goes through 5-inch holes | hand firing and domestic purposes |
Egg | goes through 5-inch holes, retained by 2-inch round holes | hand firing, gas producers, domestic firing |
Nut | through 2-inch holes, retained by 1¼-inch holes |
small industrial stokers, gas producers, hand firing |
Stoker coal | through 1¼-inch holes, retained by ¾-inch holes |
small industrial stokers, domestic firing |
Slack | ¾ inch and under | pulverizers and industrial stokers |
U. S. Dept. of Energy, Energy Information Administration.
Coal Data: A Reference.
Washington, DC: U.S.G.P.O., 1982.
Page 60.
Steam. Its Generation and Use. 37th edition.
New York: The Babcock and Wilcox Co., 1955.
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Last revised: 8 November 2003.