BOILER OR WATER-COOLING PANEL FOR CONVERTER OG EQUIPMENT AND LIFE EXTENSION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a boiler or water-cooling panel of converter OG equipment (non-combustion type exhaust gas treatment equipment) having durability in long period.SOLUTION: A boiler 1 or water-cooling panel of converter OG equipment, in which the boiler or water-cooling panel is formed by jointing mutually plural steel tubes 2 with a steel fin 3, and formed into a cylindrical shape. On a passage surface side of exhaust gas from a converter of the tubes and fin, a padding layer 5 formed of Inconel alloy whose thickness is 1.0 mm or more and 2.0 mm or less, is formed. The padding layer 5 has variation width of the thickness, preferably 0.5 mm or less in a range of 5 mm in an optional direction.