Method and device for drying surface treated, especially varnish

Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor

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34 72, F26B 302

Patent

active

040730638

ABSTRACT:
A method of drying surface treated objects having a protective layer deposited thereupon. The drying is performed in a closed drying space by a heated gaseous medium. The heat content of the effluent gaseous medium discharged from the closed space is utilized for further drying either directly by its introduction into the drying space or indirectly by contacting it with a fresh gaseous medium to cause heat exchange therewith and then introducing into the drying space the thus heated fresh gaseous medium. Prior to utilization of the heat content of the effluent discharged gaseous medium, the same may be purified and a portion thereof may be released into the atmosphere.
A device performing this method.

REFERENCES:
patent: 3601900 (1971-08-01), Erisman
patent: 3757427 (1973-09-01), Wilkinson
patent: 3909953 (1975-10-01), Hemsath et al.

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