Treating airborne web material

Details Treating airborne web material Treating airborne web material

1976-11-30

1979-02-06

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34156, 226 7, 226 97, 302 31, F26B 1320

Patent

active

041376447

ABSTRACT:
Web material is carried on air to advance the material in a fixed stable floating position through one or more decks of a treating plant, preferably a drier. The air is supplied through pairs of apertures arranged in the upper surface of blow-boxes distributed in the conveying path of the material which apertures eject the air in pairs of streams facing away from each other. To reduce deflection of the material between said pair of apertures the space between said apertures is supplied separately with a great volume of secondary air of the same static pressure as that prevailing on the upper surface of the material, which secondary air is taken along by ejector effect by the primary air streams ejected from the apertures of the blow-boxes.

REFERENCES:
patent: 3231165 (1966-01-01), Wallin et al.
patent: 3622058 (1971-11-01), Vits
patent: 3957187 (1976-05-01), Puigrodon

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