Patent ID: 8850715
Filing Date: 2014-10-07
Classification: F26B

Abstract:
1. A process for drying articles in which a) the articles are moved through a drying zone in which they are hardened in an inert-gas atmosphere; and b) inert gas, which is conducted along at least one face which is cooled down to a temperature that lies below the dew point of contaminants contained in the inert gas, is taken from the drying zone constantly or intermittently; wherein c) the inert gas in step b is first conducted along a first face which is at a first temperature at which higher-boiling contaminants condense out, and that the condensate that forms in the process is discharged; and, d) the inert gas which has been pre-cleaned in this way is conducted along at least one second face which is at a lower temperature than the first face, at which temperature lower-boiling contaminants condense out, and that the condensate that forms in the process is discharged, wherein at least part of the cooled faces along which contaminated inert gas is conducted is cleaned from time to time mechanically, by flushing or thermally.