| 摘要 |
PURPOSE:To prevent the clogging of a nozzle by providing blades above the upper surface of a rotating disc, supplying air into the inner side of the rotating part of the blades of an atomizer main body, and preventing the blowing in of a waste gas into the rotating disc by the evacuating performance of the rotating blades. CONSTITUTION:In a chemical agent spraying device for removing harmful gas in a waste gas, radial blades 11 which rotate as one body with a disc 8 is provided above the upper surface of the rotating disc 8. An air introducing passage 12 which supplies air into the inner side of the rotating blades and is opened in the air is provided to the main body 4 of an atomizer. When the blades 11 air rotated as one body with the disc 8 at a high speed, the air is blown into the inner side of the rotating blades from said passage 12 and exhausted towards the circumference and outwards with air at a space between said body 4 and the disc 8. Therefore, the waste gas is not blown into the disc 8 and the clogging of a nozzle 10 due to attachment of CaCO3 or the like produced by the reaction of CO2 in the waste gas with a chemical agent such as slaked lime slurry to the inner surface of the nozzle 10 can be prevented.
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