Liquid heaters and vaporizers – Water tube – Wall structure
Patent
1975-09-30
1977-03-29
Sprague, Kenneth W.
Liquid heaters and vaporizers
Water tube
Wall structure
110165R, 122 7C, F22B 2100, F23G 704
Patent
active
040142965
ABSTRACT:
A waste liquor recovery furnace includes a lower combustion chamber and an upper final combustion chamber, separated by a restricted gas passage. The furnace has a basically cylindrical configuration, being defined by a tube membrane shell, and the lower combustion chamber is formed by tubes from said shell being bent, doubly inwards, defining a discharge opening for the liquid combustion residue. A screen of tubes in the final combustion chamber is arranged to direct the gases towards the shell, being substantially solid in the center of the chamber, directly above the discharge opening.
REFERENCES:
patent: 2709424 (1955-05-01), Sifrin
patent: 2911284 (1959-11-01), Hochmuth
patent: 2982265 (1961-05-01), Wedertz
patent: 3403642 (1968-10-01), Parkin
Gotaverken Angteknik AB
Sprague Kenneth W.
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