| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaning device of a furnace cover in which tar that has adhered to a furnace cover can be removed, and maintenance load is decreased.SOLUTION: A cleaning device of a furnace cover includes a water injection means 18 that is mounted on a vehicle that travels a front side or a rear side of a coke oven, and has a nozzle holder 33 that holds two or more nozzles injecting high pressure water and performs revolution, wherein two or more nozzles include: first and second nozzles 34, 35 gradient arranged in countering positions on a circumference of a first circle centering in a revolution center of axle O of the nozzle holder 33 to face a tangential direction; and third and fourth nozzles 36, 37 gradient arranged in countering positions on a circumference of a second circle formed at an outside of the first circle centering in the revolution center of axle O of the nozzle holder 33 to face a tangential direction, and exhaust nozzle diameters of the first and second nozzle 34, 35 are larger than exhaust nozzle diameters of the third and fourth nozzles 36, 37. |
