Furnaces – With fuel treatment means – Preliminary refuse treatment means
Patent
1977-05-09
1978-02-14
Sprague, Kenneth W.
Furnaces
With fuel treatment means
Preliminary refuse treatment means
110 8P, 210 67, 210 70, 210 73S, F23G 502
Patent
active
040732428
ABSTRACT:
A slanted sieve is used to drain liquid out of sewage and to concentrate the sludge, the liquid being drained into a first tank and the sludge allowed to slide into an adjacent, second tank. The sludge is drawn from the second tank into a macerating pump where it is ground and dumped into a third or incinerator-feed tank. A second pump forces the sludge from this tank through a pipe and into an incinerator, where the sludge is formed into droplets and dispersed over the fire by a blower that forces air at substantially right angles to the opening of the pipe. To prevent settling out of heavy, solid particles in the sludge, and clogging of the apparatus, the sludge must be moved therethrough at a velocity too great for feeding the sludge into the incinerator. An automatic timer operates a three-way valve between the second pump and the incinerator, that alternately directs sludge into the incinerator in powerful spurts against a blast of air, and diverts it back into the incinerator-feed tank. This method of delivering sludge to the incinerator also helps to insure thorough atomization of the sludge, and permits use of a smaller incinerator than would otherwise be necessary.
REFERENCES:
patent: 482052 (1892-09-01), Wilson
patent: 2094909 (1937-10-01), Baily et al.
patent: 2138349 (1938-11-01), Mallory
patent: 3516777 (1970-06-01), Hines et al.
patent: 3655048 (1972-04-01), Pergola
patent: 3915857 (1975-10-01), Olson
Marcus Stanley A.
McCullough Edward E.
Sprague Kenneth W.
Thiokol Corporation
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