| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for conducting a stably thermal storage burning with a reducing flame by improving a temperature distribution in a furnace. SOLUTION: A low oxygen air is supplied as a burning air of a burner 2 for a thermal storage burning, and burned by a reducing flame. The air is supplied to a burning gas containing unburned combustibles to this side of a burner 3 of an exhaust side, completely burned, and an exhaust heat is recovered through a thermal storage unit 5. The exhaust gas removed from the burner 3 of the exhaust side is circulated to the burner 2 of the burning side through an exhaust gas circulating route, and used as a burning air. A gas flow rate in a furnace is assured irrespective of the reducing burning, and its temperature distribution is improved. |
