DRYING FURNACE PROVIDED WITH DEVICE FOR CLEANING DUST

PURPOSE:To completely remove the dust in the title drying furnace and to improve the quality of an electrodeposited film by providing a shower device for a cleaning soln. in the furnace for drying the coated film of an electrodeposited article, and automatically discharging washing water. CONSTITUTION:A product coated with a cationic electrodeposition paint is fixed to a hanger and traveled in the drying furnace 10 by a rail 16, and the electrodeposited film is dried. In this case, when dust is present in the drying furnace 10, the dust is deposited on the coated film and dried as such, and the quality of the electrodeposited film is deteriorated. Accordingly, both end parts 22 and 24 of the drying chamber 10 are inclined, and the essential part 20 at the center is raised, and a device 18 for cleaning off dust consisting of a pipe 26 having many injection holes and provided in the furnace is arranged. When the dust in the drying furnace 10 is swept out, an opening and closing means 28 of a cleaning soln. supply pipe is opened to spray the cleaning soln., the dust in the drying furnace is cleaned, and the dust is naturally dropped and discharged from both inclined parts 22 and 24.