Drying apparatus

Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles

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Details

34160, F26B 1300

Patent

active

051813297

ABSTRACT:
Apparatus for drying a web comprises a pair of spaced parallel plates defining a channel there between of predetermined thickness and length for receiving the web. The plates are provided with juxtaposed elongated openings respectively for injecting drying air into the channel on opposite sides of the web. Air under pressure is supplied to the openings to establish a high velocity laminar flow of air from the openings in opposite directions along the surface of the web. Air is evacuated from the channel on opposite sides of the web at a predetermined distance from said openings to maintain the heat transfer rate in the air higher than the heat transfer rate in the web.

REFERENCES:
patent: 2492974 (1950-01-01), Dungler
patent: 3041739 (1962-07-01), Meier-Windhorst
patent: 3324570 (1967-06-01), Flaith et al.
patent: 3662476 (1972-05-01), Capizzi
patent: 3672066 (1972-06-01), Stephansen
patent: 3805409 (1974-04-01), Sato et al.
patent: 4467537 (1984-08-01), Trotscher
patent: 4472888 (1984-09-01), Spiller
patent: 4594795 (1986-06-01), Stephansen
patent: 4901449 (1990-02-01), Wimberger

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