POWDER SUPPLYING DEVICE AND METHOD FOR AUTOMATICALLY CLEANING A POWDER SUPPLYING DEVICE

摘要

The invention relates to a powder supplying device for a powder coating installation (1) with at least one closed or closable powder container (24), which has a substantially cuboidal powder chamber (22) for coating powder and a fluidizing device (30) for introducing fluidizing compressed air into the powder chamber (22). In order to make it possible for the powder to be changed quickly in an easy manner, it is provided according to the invention that at least one inlet opening (26), opening out into the powder chamber (22), is provided in a side wall (24-3) of the powder container (24) for feeding coating powder as and when required during the powder coating operation of the powder coating installation (1) or optionally for introducing cleaning compressed air during the cleaning operation of the coating installation. Furthermore at least one outlet (31, 33), leading out from the powder chamber (22), is provided for discharging fluidizing compressed air introduced into the powder chamber (22) or optionally for discharging cleaning air introduced into the powder chamber (22) during the cleaning operation together with residual powder transported along with the cleaning compressed air. At least one powder feed line (20, 20') and at least one cleaning compressed-air feed line (101-1, 101-2, 101-3) are connected via a diverter to the at least one inlet opening (26).