| 摘要 |
PROBLEM TO BE SOLVED: To provide a combustion apparatus for a heating furnace, of which maintenance work can be simplified while allowing heating inside the furnace in the condition of uniforming temperature distribution. SOLUTION: The combustion apparatus is constituted by being provided with an oxygen containing gas supply part for supplying combustion oxygen containing gas flowing with the existence of its horizontal width from a lateral side portion of the heating furnace to the upper side of a heated object in the furnace and a gas fuel jet nozzle 11 for jetting gas fuel from the lower side of an oxygen containing gas supply portion of the oxygen containing gas supply part at a lateral side portion of the heating furnace to an in-furnace combustion region S to which the oxygen containing gas is supplied flowing with the existence of its horizontal width. Herein, as the gas fuel jet nozzle 11, one gas fuel jet nozzle 11 is provided in an integrated condition for jetting the gas fuel from a plurality of jetting portions N radially in a plan view so that sector flames are formed to spread over all or almost all of the horizontal width of the in-furnace combustion region S to which the oxygen containing gas is supplied flowing with the existence of its horizontal width. COPYRIGHT: (C)2005,JPO&NCIPI
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