Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Patent
1978-04-11
1980-03-25
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
34119, 165 90, F28F 502
Patent
active
041942990
ABSTRACT:
Apparatus for drying web materials is disclosed, including a drum, means for supplying steam under pressure to the interior of the drum, passage means extending axially in a portion of the outer drum wall and through one of its end walls for removing condensed steam formed within the drum therefrom, groove means extending circumferentially around the inner surface of the cylindrical drum for collecting condensed steam and supplying it to the passage means, throttle means outside of the end wall, vacuum condensing means under reduced pressures for condensing steam carried by the condensate, and discharge conduit means connecting the throttle means to the vacuum condensing means, the throttle means being adapted to provide a pressure drop between the passage means and the discharge conduit.
REFERENCES:
patent: 1643973 (1927-10-01), Woodsome
patent: 2102106 (1937-12-01), Allen
patent: 2561874 (1951-07-01), Lahman
patent: 2869248 (1959-01-01), Justus
patent: 3481050 (1969-12-01), Cox, Jr.
patent: 4077466 (1978-03-01), Fleissner
patent: 4106211 (1978-08-01), Holik
Wiberg, deceased Karl V.
Wiberg, legal representative Anna-Britta
Sca Development Aktiebolag
Schwartz Larry I.
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