| 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 and the like of the furnace. SOLUTION: The burner comprises a fuel nozzle 2N, and two oxidant nozzles 31a, 31b disposed vertically of the fuel nozzle. The nozzles are disposed slantingly with respect to the fuel nozzle N so that it collides with a fuel injected from the fuel nozzle 2N at an intersection angleαfrom a vertical line at a distance d with respect to the fuel. A flat flame is formed in the furnace with the collision. Thereupon, an inactive matter is simultaneously injected to increase momentum of the fuel.
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