Drying and gas or vapor contact with solids – Apparatus – Chamber seals
Patent
1994-05-02
1996-10-22
Bennett, Henry A.
Drying and gas or vapor contact with solids
Apparatus
Chamber seals
34 95, 34422, 34419, 34 69, 34 71, 34335, 34634, F26B 2500
Patent
active
055664725
ABSTRACT:
The invention relates to seals for use at band edges in a Condebelt.RTM. apparatus described in Finnish Patent 54 514. In the apparatus, a material web to be dried passes in a substantially airless space between two metal bands (1, 7) or other similar bands or membranes of good thermal conductivity together with drying wires. One of the metal bands is arranged to heat and the other is arranged to cool; the heating band (1) evaporates moisture contained in the web to be dried, the moisture condensing on the surface of the cooling band (7), separated from the web (2) to be dried by drying wires. The drying space between the bands of the Condebelt.RTM. apparatus is sealed up at the edges by seal profiles (10, 11) attached to the heating band (1) or the cooling band (7). It is also possible to use a number of seal profiles positioned against each other or side by side.
REFERENCES:
patent: 3214327 (1965-10-01), Wicker et al.
patent: 3214330 (1965-10-01), Wicker et al.
patent: 3525160 (1970-08-01), Dokoupil et al.
patent: 4112586 (1978-09-01), Lehtinen
patent: 5241759 (1993-09-01), Weidlich et al.
Haavisto Seppo
Lehtinen Jukka
Rautakorpi Paavo
Bennett Henry A.
Ohri Siddmarth
Valmet-Tampella Oy
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