Heating – Work chamber having heating means – Combustion products heat work by contact
Patent
1983-11-07
1985-11-12
Favors, Edward G.
Heating
Work chamber having heating means
Combustion products heat work by contact
432 18, F27B 502, F27B 516
Patent
active
045525307
ABSTRACT:
A ring section baking furnace for the indirect heating of shaped bodies or particulate material, particularly for calcination, includes vertical ducts, or channels, in pit walls arranged in groups by means of partition walls under the bottom of the pits. Flue gases are led up and down through these ducts. Combustion chambers are not provided, and the volume thereof otherwise required is incorporated into the pit volume. The ducts in each pit wall lead out over the pit wall into one or more separate rooms which connect, in series, two neighboring groups in this pit wall. A small cover plate is provided over each pit wall. Compared with earlier designs with the same external dimensions, less refractory brick is required, a more even temperature of the calcined material is achieved, the consumption of fuel is reduced and the capacity increased.
REFERENCES:
patent: 1133885 (1915-03-01), Richardson
patent: 1612127 (1926-12-01), Johnson
patent: 2158765 (1939-05-01), Stewart
patent: 4040778 (1977-08-01), Black
patent: 4253823 (1981-03-01), Holdner
patent: 4382778 (1983-05-01), Pealey et al.
Gunnes Kare
Lid Olav
Naterstad Tormod
Ardal og Sunndal Verk a.s.
Favors Edward G.
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