ROLLER HEARTH TYPE CONTINUOUS KILN FOR PLASMA DISPLAY PANEL

PROBLEM TO BE SOLVED: To provide a roller heath type continuos kiln for plasma display panel capable of easily conducting kiln maintenance, such as removal of impurities attached to the surface of a muffle or removal of broken pieces of a glass substrate from the inside of the muffle. SOLUTION: This roller hearth continuous kiln has a treatment chamber H partitioned with a muffle. The treatment chamber is formed into a muffle structure with a top plate 11, a bed plate 14, and a sidewall of an inner plate 11 structure each made of heat resistant steel, the top plate and the bed plate are detachably attached to the sidewall part, most of a top wall part 1 and most of a bed wall part 2 are formed in separable structures, and detachably attached to the sidewall part on the outside of the kiln, and electric heaters 17a, 17b are arranged in the top wall part within the kiln and the bed wall part within the kiln.