To provide an incinerated ash melting furnace capable of melting incinerated ash by suppressing in-furnace synthetic magnetic flux attenuation and heating loss due to an eddy current occurring in a furnace shell while installing a coil on an outside of a metal furnace shell having air tightness, and realizing coke induction heating with high thermal efficiency.
The incinerated ash melting furnace is a coke bed melting furnace inputted with incinerated ash and coke to melt the incinerated ash, and a high frequency current is applied to the coil to carry out induction heating of the coke in a furnace lower part. The furnace shell 15 is composed of a non-magnetic metal with low electric resistance, the induction heating coil 10 is installed outside the furnace shell 15, at least one portion in a circumferential direction of the furnace shell 15 is electrically isolated, the furnace shell 15 is electrically isolated from upper and lower metal furnace bodies by horizontally dividing the furnace shell 15 at positions in upper and lower end neighborhoods of the induction heating coil 10 and providing dividing parts 21, and the dividing parts 21 are used as permeation paths of a magnetic flux into the furnace.
MURAHASHI KAZUTAKE
ISHIDA YOSHIHIRO
KATOU YASUHIKO
Takato Tsutsumi
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