EXHAUST GAS TREATMENT EQUIPMENT AND EXHAUST GAS TREATMENT METHOD IN WASTE INCINERATION

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas treatment method and equipment for the same which facilitate the recycle of desalination residues containing no dioxine by removing dioxine contained in fly ash to maintain a percentage content of heavy metals.;SOLUTION: Exhaust gas treatment equipment, which treats an exhaust gas from an incinerator equipped with a boiler and an economizer has dust collecting means at the first stage rear of the boiler and the economizer and upstream of a blowing position of dioxin adsorbent and dust collecting means at the second stage and rear of the blowing position of dioxin adsorbent, where dust collection ash captured by the dust collecting means at the second stage is cast again into the incinerator. The sum recovery rate of boiler fly ash from the boiler, economizer fly ash from the economizer, and fly ash captured by the dust collecting means at the first stage to incinerator-derived fly ash generated in the incinerator is preferably 50% or more.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT