Metallurgical apparatus – With means treating or handling gases exhausted by treating... – By contacting gas with nonmetallic liquid
Patent
1977-08-26
1980-04-08
Bell, Paul A.
Metallurgical apparatus
With means treating or handling gases exhausted by treating...
By contacting gas with nonmetallic liquid
266159, C21B 722
Patent
active
041968921
ABSTRACT:
An apparatus for equalizing top gas pressure exerted on the bottom surface of the large bell operating in the large bell hopper in a top closing device for a blast furnace, so as to enable opening of the large bell for the feeding of charge therethrough during operation of the blast furnace of any top gas pressure, including a venturi scrubber, located at the top or in the vicinity of the blast furnace, connected by ducts to the uptake or other gas main for furnace top gas, and a separator, mounted at the top or in the vicinity of the blast furnace, connected by ducts to the venturi scrubber and large bell hopper, which elements scrub the furnace top gas and direct scrubbed top gas into the large bell hopper, so as to exert equalizing pressure on the large bell with scrubbed top gas, and further including an ejector, mounted in the venturi scrubber, which maintains a continuous flow of scrubbed top gas into the large bell hopper, so as to maintain equalizing pressure therein.
REFERENCES:
patent: 2702699 (1955-02-01), Kinney
patent: 3041059 (1962-06-01), Powell
patent: 3045996 (1962-07-01), Rice
patent: 3297432 (1967-01-01), Mohr, Jr.
patent: 3343825 (1967-09-01), Tsutsumi et al.
patent: 3735970 (1973-05-01), Genge
patent: 3841061 (1974-10-01), Pike
patent: 3877488 (1975-04-01), Baturay et al.
patent: 4057602 (1977-11-01), Kolm
Air Pollution Industries
Bell Paul A.
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