METHOD AND DEVICE FOR REMOVING SCALE ON SURFACE OF BEAM IN WALKING BEAM TYPE FURNACE

• Main Author: KUNO YASUO
• Format: Patent
• Language: English
• Published: 10.11.2005
• Edition: 7
• Subjects: BLASTING; CHEMISTRY; FURNACES; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; HEATING; KILNS; LIGHTING; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL ENGINEERING; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; OPEN SINTERING OR LIKE APPARATUS; OVENS; RETORTS; WEAPONS

PROBLEM TO BE SOLVED: To prevent scales from adhering or stacking on the surfaces of beams during operation. SOLUTION: This device removes, during operation, scales (s) adhered to the surfaces of the movable beam 1 and the fixed beam 2 of a walking beam type furnace. When the movable beam 1 is at a bottom position, a fixed injection nozzle 11 is disposed, in an erected state, on the longitudinal side of the movable beam 1 so that an inert gas can be injected toward the surface of the movable beam 1. When the movable beam 1 is at a top position, a movable injection nozzle 14 is installed on the longitudinal side of the movable beam so that the inert gas can be injected toward the surface of the adjacent fixed beam 2. Also, the device comprises pipes 12 and 15 guiding the inert gas from the outside of a furnace to the fixed injection nozzle 11 and the movable injection nozzle 14. Thus, since scales are blown off during operation by jetting the inert gas toward the surfaces of the beams not supporting a material, the scales are not adhered nor stacked on the surfaces of the beams. COPYRIGHT: (C)2006,JPO&NCIPI