Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1988-06-14
1989-05-30
Yuen, Henry C.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432139, 432235, 432242, F27B 916
Patent
active
048346500
ABSTRACT:
The furnace has a hearth which rotates inside a stationary closed chamber and is supported therein on vertical cylindrical conduit which extends through the furnace floor and is supported by a single center bearing. The charge is deposited through the furnace roof on the rim of the hearth as it rotates and is moved toward the center of the hearth by rabbles. Externally generated hot gases are introduced into the furnace chamber below the hearth and rise through perforations in the hearth and up through the charge. Exhaust gases are withdrawn through the furnace roof. Treated charge drops from a center outlet on the hearth into the vertical cylindrical conduit which extends downwardly through the furnace floor to which it is also sealed.
REFERENCES:
patent: 2676006 (1954-04-01), Martin
patent: 3470068 (1969-09-01), Kemmerer et al.
patent: 3652426 (1972-03-01), Oleszko
patent: 3740184 (1973-06-01), Oleszko
patent: 3763011 (1973-10-01), Allred
patent: 3998703 (1976-12-01), Harrell
patent: 4207061 (1980-06-01), Ikenaga et al.
patent: 4669977 (1987-06-01), Johnson et al.
Beri Joseph
Docherty James P.
Johnson Beverly E.
Salem Furnace Co.
Yuen Henry C.
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