Apparatus for the treatment, in particular drying, of material w

Details Apparatus for the treatment, in particular drying, of material w Apparatus for the treatment, in particular drying, of material w

1998-04-22

1999-12-28

Bennett, Henry

Drying and gas or vapor contact with solids

Apparatus

Sheet, web, or strand

34634, 34635, 34636, 34638, 34643, F26B 900

Patent

active

060064463

ABSTRACT:
To provide uniform treatment criteria over the entire surface of a material web (10) in the region of a drying chamber (11), the treatment air or intake air is directed onto the material web (10) from above and below by means of slot nozzles (19, 24) from nozzle boxes (17, 18). The return air reflected from the material web (10) is conducted away upwards and downwards via return-flow ducts (25, 26) in the nozzle boxes (17, 18) into a collection space (34), on the one hand, and a return-air space (35), on the other hand.). The return air is conveyed upwards from the lower return-air space (35) through return-flow shafts (36, 37) into the region of the upper collection space (34).

REFERENCES:
patent: 3012335 (1961-12-01), Allander et al.
patent: 3324570 (1967-06-01), Flaith et al.
patent: 3800438 (1974-04-01), Meier-Windhorst
patent: 3823488 (1974-07-01), Houben et al.
patent: 4170075 (1979-10-01), Scott
patent: 4295284 (1981-10-01), Witkin
patent: 4341024 (1982-07-01), Witkin
patent: 4833794 (1989-05-01), Stibbe et al.
patent: 5005272 (1991-04-01), Severinsen
patent: 5191725 (1993-03-01), Wohlgenannt et al.
patent: 5229364 (1993-07-01), Heikkila et al.
Prospekt: Trocknungsanlagen der Fa. Erler & Co., Hamburg, 1968, H. 7.

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