| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a regeneration burner for connecting a passage for filling a filling fluid to an exhaust passage and for preventing the occurrence of a hindrance to operation of the regeneration burner due to corrosion of a directional control valve for exhaust air installed in a pipe of the exhaust passage, and also to provide its operation method. <P>SOLUTION: This regeneration burner is provided with: burners 2 arranged in a plurality toward the inside of a furnace for generating exhaust gas including an SO<SB>2</SB>component, supplying fuel gas from a fuel supply passage 6 at combustion operation time, supplying combustion air from an air supply passage 3 and exhausting the exhaust gas to the exhaust passage at suction operation time; and a directional control valve 16 for fuel, a directional control valve 14 for air supply and the directional control valve 15 for exhaust air, associatively arranged to the respective burners in the air supply passage and the exhaust passage and opened-closed for switching combustion operation and suction operation of the burners. While putting a part in an operation state among a plurality of burners, a residual burner is connected with a fluid filling passage 22 for filling the fluid in the exhaust passage between the respective burners and the directional control valve for exhaust air when put in a stopping state, by closing all of the directional control valve for fuel, the directional control valve for air supply, and the directional control valve for exhaust air. <P>COPYRIGHT: (C)2004,JPO |
