Method and arrangement for utilizing energy of drying apparatus for fiber web
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 4, 1999
Grant Date -
N/A
app pub date -
Apr 11, 1997
filing date -
Apr 12, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The drying apparatus comprises two endless bands (1, 2) that are impermeable to air and that have a good thermal conductivity. A fibre web (5) runs between the bands (1, 2) with at least one felt or wire (3, 4). The metal band in contact with the fibre web (5) is heated with a pressure chamber (9) containing a pressure medium that is steam. Correspondingly, the metal band in contact with the felt or wire (3, 4) is cooled. The pressure chamber (9) is sealed against the first band (1) with a seal (9a). In association with the pressure chamber (9) there is a steam recovery chamber (18), where steam and condensate that escape from between the seal (9a) and the first band (1) can be recovered. The steam recovered from the steam recovery chamber (18) is supplied for further use with a means according to the arrangement.
First Claim
Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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