Furnaces – Ash receiving and handling devices – Ashpans
Patent
1979-06-25
1981-11-24
Favors, Edward G.
Furnaces
Ash receiving and handling devices
Ashpans
110165R, F23J 100
Patent
active
043017479
ABSTRACT:
A furnace includes a downdraft combustion chamber, a burner mounted at the top of a combustion chamber for burning particulate ash-containing fuel, and a generally horizontal duct near the lower end of the combustion chamber for withdrawing hot gases rsulting from the combustion. The combustion chamber is downwardly tapered to a relatively small conduit, downward into which molten slag from the ash flows. The slag, upon passing through the conduit, passes into and through a downwardly open slag-receiving chamber below the combustion chamber. The slag falls through out the bottom of the slag-receiving chamber into a volume of water immediately below. A portion of the hot gases is diverted through the slag-receiving chamber in order to maintain the slag-receiving chamber at a sufficiently high temperature so that the slag passing therethrough is prevented from solidifying. The portion of hot gas is then directed to a mill for drying fuel therein prior to combustion.
REFERENCES:
patent: 1957583 (1934-05-01), Foresman
patent: 3580226 (1971-05-01), Blackburn et al.
patent: 3589317 (1971-06-01), Kunovits et al.
patent: 3741136 (1973-06-01), Stookey
patent: 4095958 (1978-06-01), Caughey
patent: 4227469 (1980-10-01), Collura
Brock Steven B.
Lockwood, Jr. Hanford N.
Siegert Louis D.
Coen Company, Inc.
Favors Edward G.
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