Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1990-04-26
1991-12-03
Yuen, Henry C.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432144, 432152, 432 82, F27B 900
Patent
active
050696181
ABSTRACT:
In a tunnel kiln or other through-type kiln having aligned successive preheating, firing and cooling zones, counter-current air flows are provided in the preheating and cooling zones while essentially isolating the firing zone from air exchange by circulating air between the preheating and cooling zones through external conduits bypassing the firing zone, thereby substantially reducing energy consumption and providing environmentally safe exhaust from the kiln without substantial expense for air filtration.
REFERENCES:
patent: 3336018 (1967-08-01), Cuvelier
patent: 4449923 (1984-05-01), Shimosato
patent: 4569658 (1986-02-01), Wiggins et al.
patent: 4588378 (1986-05-01), Yamamoto et al.
patent: 4767320 (1988-08-01), Sasaki et al.
patent: 4790749 (1988-12-01), Mauro
patent: 4878838 (1989-11-01), Verheyden, Jr.
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