Feed method and device for a powdered product projection plant

Details Feed method and device for a powdered product projection plant Feed method and device for a powdered product projection plant

B - Operations, Transporting

05

D

B05D 1/12 (2006.01) B05B 7/14 (2006.01)

Patent

CA 2161963

In a coating plant, the powder feed device is cooled permanently in order to avoid the deterioration of the powder which could be caused by an excessively high temperature. The air for the fluidization of the powder contained in the reservoir (1) is cool, dry air. A heat exchanger (30) supplies a closed loop circuit comprising an annular cooling chamber (32) and a coil (33) arranged in the path of the powder. The shaft of the worm screw may also be cooled.

Dans une installation de revêtement, le dispositif d'alimentation en produit pulvérulent est refroidi en permanence pour éviter la détérioration de la poudre qui pourrait être causée par une température trop élevée. L'air de fluidisation de la poudre contenue dans le réservoir (1) est un air froid et sec. Un échangeur de chaleur (30) alimente un circuit en boucle fermée comprenant une chambre annulaire de refroidissement (32) et un serpentin (33) placé sur le trajet de la poudre. L'axe de la vis sans fin peut aussi être refroidi.

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