Process for regenerating a moisture laden drying cartridge and a

Details Process for regenerating a moisture laden drying cartridge and a Process for regenerating a moisture laden drying cartridge and a

1987-11-04

1989-08-22

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 80, 55179, F26B 2106

Patent

active

048583359

ABSTRACT:
A process for regenerating a moisture charged drying cartridge and apparatus for carrying out the process. Drying cartridges are used to prepare drying air for drying synthetic plastics in the form of granulates or powders. Used drying air, which has become charged with moisture, is passed through a drying cartridge which takes up the moisture from the drying air. The dried drying air can then be passed again through the material to be dried. In regenerating a spent, moisute laden drying cartridge, external air is collected, heated and exhausted after passage through the cartridge, which subsequently must be cooled. In order to achieve the lowest possible dew point after regeneration of a cartridge to be dried with a minimum consumption of energy, the regeneration air is passed in a closed regeneration circuit (11) through the cartridge (9'). The drying cartridge (9) lies in a drying circuit which includes a chamber (1) for the material to be dried, and it can be switched into a regeneration line (12) which forms a portion of the closed regeneration circuit (11). With this process and apparatus the moisture in the cartridge (9') can be expelled substantially without any energy loss.

REFERENCES:
patent: 4189848 (1980-02-01), Ko et al.
patent: 4601114 (1986-07-01), Noguchi

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