| 摘要 |
PROBLEM TO BE SOLVED: To suppress oxygen concentration imbalance in gas, and to suppress gas temperature imbalance, by promoting effective practical use of a combustion space inside a combustion furnace. SOLUTION: In this combustion furnace 1, burners 11 of a front wall A on one side of walls facing each other and burners 12 of a rear wall B are disposed in the same horizontal plane or in nearly same horizontal planes, and respective burner central axis 2 and burner central axis 3 are disposed in positions slightly out of alignment from each other, so that flame from the burners 11 provided in the front wall A partially collides with flame from the burners 12 provided in the rear wall B, and partially not. Flame not colliding with the front or rear wall A, B facing each other of the flame from the burners 11, 12, uses a space between side walls C and the burner flame as the combustion space, and flame close to the side walls C is thrusted in a bulging direction (the arrow (R) direction as shown in a figure) to the side wall side, so that there is action reducing spaces inside the combustion furnace not effectively used for combustion generated in areasβ,β'. COPYRIGHT: (C)2007,JPO&INPIT
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