| 摘要 |
PROBLEM TO BE SOLVED: To provide a combustion equipment capable of improving radiant heat transfer characteristics while suppressing generation of an NOx. SOLUTION: A fuel jet port 16 for injecting fuel and a primary combustion assisting gas jet port 17 for injecting primary combustion assisting gas are installed at an innermost wall of a combustion chamber 14 recessed on an inner surface of a furnace wall 11, and secondary combustion assisting gas jet port 18s for injecting secondary combustion assisting gas are installed at both sides of the port 16 of a direction parallel to the surface of a matter to be heated.
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