| 摘要 |
PURPOSE:To prevent the leakage of high temp. unburnt part and ashes outside an incinerator and discharge incombustibles by a method wherein a rotary fluidized classifier is installed at a discharge pipe for incombustibles installed at the bottom of the incinerator and air is ejected from under the classifier. CONSTITUTION:Fine high temp. ashes of objects incinerated in a fluidized incinerator 1 are blown off into the incinerator by ejecting air for fluidization sent from an air ejecting fan 11 for fluidization, burnt in being mixed in a fluidized bed, then passes through a high temp. gas duct 4 and are separated into the ashes and high temp. gas. Incombustibles with high specific gravity mixed in objects to be incinerated fall down into a discharge pipe 8 for incombustibles. The incombustibles are caught in the receiving part 10b of a rotary fluidized classifier 10 and cast out into the discharge pipe 8 by the rotation of the classifier 10. However, the ashes are blown back into the incinerator through a gap G between the classifier 10 and the inner wall of the pipe 8 by the ejecting air for fluidization. The incombustibles thrown out into the pipe 8 fall into a drop pipe 9 by the drive of a screw conveyor 12 and are discharged outside the incinerator.
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