SOLID FUEL BURNER AND BOILER PROVIDED WITH THE BURNER
PROBLEM TO BE SOLVED: To provide a solid fuel burner that does not produce malfunction of a frame detector (FD) and a boiler provided with the burner.SOLUTION: The solid fuel burner is sequentially provided with: an ignition burner 1 which uses liquid fuel in the center shaft part; a fuel nozzle 2 w...
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Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a solid fuel burner that does not produce malfunction of a frame detector (FD) and a boiler provided with the burner.SOLUTION: The solid fuel burner is sequentially provided with: an ignition burner 1 which uses liquid fuel in the center shaft part; a fuel nozzle 2 which belches solid fuel to the peripheral side of the ignition burner 1 together with a carried gas; and combustion gas nozzles 3 and 4 having a swivel means 4-1 which not only belches a combustion gas to the peripheral side of the fuel nozzle 1 but also grants the combustion gas to swivel around the center shaft C, and includes: an ignition torch 5 which ignites the liquid fuel belched from the ignition burner 1 extending inside a fire furnace through the combustion gas nozzles 3 and 4; and a frame detector 6 to detect the flame towards the inside of the fire furnace provided with a detection end in the belching area of the fire furnace of the combustion gas through the combustion gas nozzles 3 and 4. The frame detector 6 is disposed on the downstream side of the combustion air swirl flow by the angle 15 to 60° around the burner center shaft C from the ignition torch 5 installation position viewed from the fire furnace side in the extending direction of the burner center shaft. |
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