Method and device for cleaning plating bath

PURPOSE: To enable the production of an excellent plated product by efficiently removing the dross in a plating bath and cleaning the plating bath without interrupting a continuous plating operation. CONSTITUTION: The dross 21 existing in a plating bath is lifted together with a plating liquid into a gas-liquid separator 4 by a gas lift pump. The dross 21 which is adsorbed by gaseous bubbles 34 at this time and floats near a liquid surface 20 in the separator 4 is discharged together with the plating liquid to the outside from a discharge port 5 which is a dross separating discharge system. The remaining plating liquid 2 is returned from a return pipe 41 of the separator 4 into the plating bath. COPYRIGHT: (C)1993,JPO&Japio