Heating – Processes of heating or heater operation – Including passing – treating or conveying gas into or through...
Patent
1982-05-05
1984-03-27
Camby, John J.
Heating
Processes of heating or heater operation
Including passing, treating or conveying gas into or through...
34128, 165 89, 432 83, 432106, 432113, F27B 1500, F27B 702, F26B 1102, F28D 1102
Patent
active
044391412
ABSTRACT:
An apparatus that is designed to heat a flowable granular material up to an elevated temperature and cool the material back down to a temperature that is as close as possible to the temperature of the incoming material before exiting, where a substantial portion of the heat transferred in both heating the incoming material up and cooling the outgoing material back down is not being accomplished by outside heat sources and heat sinks, but rather by transferring heat from outgoing material to incoming material on a more or less direct basis. This is to be accomplished by an apparatus that is comprised of two coaxial cylinders rotating about their common axis whereby feed material enters and exits from one end, and a heat source is provided at the opposite end. Feed material enters into the inner chamber and travels towards the heat source. After passing the heat source, feed material transfers to the outer chamber where it moves in a direction opposite incoming feed material and exits the same end that it entered. The feed material, before exiting, transfers a substantial portion of its heat to the incoming material, effectively recuperating heat.
REFERENCES:
patent: 822022 (1906-05-01), Schaeffer
patent: 1551152 (1925-08-01), Hiller
patent: 1898480 (1933-02-01), Corkill
patent: 2788204 (1957-04-01), Kalling et al.
patent: 4262429 (1981-04-01), Avril
patent: 4383379 (1983-05-01), Avril
Camby John J.
Farrell Thomas M.
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