| 摘要 |
PROBLEM TO BE SOLVED: To uniby the in-furnace temperature distribution in a heating furnace in which a regenerative burner. SOLUTION: In a double cylindrical indirect heating furnace in which two sets of regenerative burners 4a, 4b (5a, 5b) arranged close to each other in the vertical direction with intervals in the height direction of a furnace wall 2 so that the ejecting direction of the combustion gas along the circumference through the alternating combustion is opposite to each other, the ratio Lb /Lo is 0.35-0.6 where Lb is the distance between the set of the regenerative burners 4a, 4b and the set of burners 5a, 5b, and Lo is the height of a furnace wall 2, and the angle formed by the perpendicular lines which are drawn from the center of burner throats of the twosets of regenerative burners 4a, 4b and 5a, 5b toward the axis of the furnace is approximately 180 deg.. |
