WASTE INCINERATION DEVICE, WASTE INCINERATION METHOD, BURNED ASH HANDLING SYSTEM, AND BURNED ASH TREATMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a waste incineration device, a waste incineration method, a burned ash handling system, and a burned ash treatment method capable of further improving the efficiency of the detoxification treatment while it is possible to apply the detoxification treatment which restricts the elution of metals contained in the burned ash to the whole incineration ash.;SOLUTION: A fire grate type waste incineration device that has a combustion furnace 1 for burning waste whose combustion chamber including a dehydration fire grate 5a, a combustion fire grate 5b, and a post combustion fire grate 5c, and primary air supply means II for supplying the primary air to the below of each fire grate and that comprises: a circulation exhaust gas supply means IV for supplying a part of the exhaust gas of the combustion furnace 1 to the below of the dehydration fire grate 5a, the combustion fire grate 5b, and the post combustion fire grate 5c; and oxygen concentration adjusting means for adjusting the oxygen concentration of the mixed gas of the primary air and the circulation exhaust gas to be supplied to the below of respective fire grates.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT