Method and arrangement for utilizing energy of drying apparatus

Details Method and arrangement for utilizing energy of drying apparatus Method and arrangement for utilizing energy of drying apparatus

1997-04-11

1999-05-04

Bennett, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Means to remove liquid from treated material by contact with...

34392, 34417, 34624, F82G 1326

Patent

active

058990020

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.

REFERENCES:
patent: 4112586 (1978-09-01), Lehtinen
patent: 4506457 (1985-03-01), Lehtinen
patent: 4887362 (1989-12-01), Rautakorpi
patent: 4958444 (1990-09-01), Rautakorpi et al.
patent: 5471765 (1995-12-01), Rautakorpi et al.
patent: 5566472 (1996-10-01), Lehtinen et al.
patent: 5706587 (1998-01-01), Lehtinen et al.
patent: 5722182 (1998-03-01), Lehtinen et al.

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