Drier-heat-exchanger

Details Drier-heat-exchanger Drier-heat-exchanger

F - Mech Eng,Light,Heat,Weapons

26

B

F26B 17/12 (2006.01) B29B 13/06 (2006.01)

Patent

CA 2307043

The invention relates to a drier-heat-exchanger for heat-treating PET granulate and similar. Instead of the usual shaft covering the whole cross- section, the inventive drier only has a channel which is delimited by air- permeable sheets (6). This ensures that the product can pass through efficiently and evenly which in turn means that a higher gas speed can be used without the product being stirred up and therefore that shorter heating times are possible.

L'invention concerne un échangeur thermique-séchoir pour le traitement thermique de granulés de PET et analogue. Le séchoir comporte, à la place de la cuve habituelle, uniquement un canal sur toute la section transversale, lequel est délimité par des tôles (6) perméables à l'air pour permettre une ventilation satisfaisante et homogène du produit, ce qui autorise une vitesse élevée du gaz sans soulèvement turbulent du produit, et ainsi des temps de chauffage courts.

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