| 摘要 |
PROBLEM TO BE SOLVED: To arbitrarily form a flat flame in a high temperature industrial furnace despite a simplified construction according to the size of the furnace. SOLUTION: The burner comprises a combustion nozzle 2N, and two oxidant nozzles 3aN and 3bN disposed up and down of the combustion nozzle. The nozzles are disposed slantingly with respect to the fuel nozzle 2N so that it collides with a fuel injected from the fuel nozzle 2N at a distance and at an intersection angleαfrom a vertical line, and an oxidant injected from injection holes 31a, 31b of at least each oxidant nozzle 3aN, 3bN can collide with a fuel from a vertical portion in a flat horizontal configuration. Even if there is any misorientation of the direction of the nozzle, a flat flame can be securely formed in the furnace with the aid of collision.
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