Pulver-Sprühbeschichtungsvorrichtung

摘要

Powder spray coating appliance having a powder feed device (2) for pneumatic delivery of powder from a main container (6) to a spraying appliance (8) and having a powder recovery appliance (10). The powder recovery appliance (10) contains a negative-pressure source (12) for generating a negative pressure for the purpose of suction removal of sprayed excess powder and returning (recycling) of excess powder into the main container (6). Owing to the negative pressure of the negative-pressure source (12), fresh powder (24) is sucked from a second container (26) into the powder recovery appliance (10) and then, from the powder recovery appliance, passed into the main container (6) by the same route as the excess powder.