| 摘要 |
PROBLEM TO BE SOLVED: To provide a waste melting furnace where an induction heating coil is arranged at the outside of a furnace shell which seals gas, and coke in the inside of the furnace can efficiently be subjected to induction heating while arranging the induction heating coil at the electrically and mechanically safe outside of the furnace shell, further, the loss in heat generation caused by the flowing of eddy current into the furnace shell is suppressed, and waste can be subjected to melting treatment. SOLUTION: In the waste melting furnace, coke filled into the furnace is reduced and burnt by the air or oxygen-enriched air, and further, high frequency current is supplied to a heating coil to inductively heat the coke, a furnace shell 15 is composed of nonmagnetic metal having low electric resistance, the induction heating coil 10 is set at the outside of the furnace shell 15, and, at least one place in the circumferential direction of the furnace shell 15 is electrically insulated. Further, division parts 21 are formed in the horizontal direction at the positions in the vicinity of the upper and lower ends of the induction heating coil 10, so that the electrical insulation in the vertical direction of the furnace shell 15 from the upper and lower metallic furnace bodies is attained, and also, each division part 21 is used as a magnetic permeation path of magnetic flux into the furnace. COPYRIGHT: (C)2004,JPO&NCIPI
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