PROCESSING METHOD FOR EXHAUST GAS OF FLUIDIZED BED TYPE INCINERATOR AND INCINERATOR PLANT WITH FLUIDIZED BED TYPE INCINERATOR

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas processing method for a fluidized bed type incinerator capable of processing chloride contained in cleaning effluent while restricting increasing in expenditure for the cleaning effluent treatment and provide an exhaust gas processing facility for the fluidized bed type incinerator.SOLUTION: A processing method for exhaust gas generated at a fluidized bed type incinerator 22 includes a step for collecting dust for flowing out the exhaust gas to a temperature reducing part 5 while recovering fly ashes contained in the exhaust gas at a dust collecting part 4; a flying ash supplying step for supplying only fly ashes present at a more upstream side than a temperature reducing part 5 including fly ashes recovered at the dust collecting step to a cleaning part 8; a cleaning step for generating cleaning ashes and cleaning discharged water by cleaning fly ashes at the cleaning part 8 and melting chloride in the fly ashes into cleaning water; a temperature reducing step for cooling the discharged gas and evaporating the cleaned discharged water at the temperature reducing part 5 by supplying the cleaned discharged water generated at the cleaning step to the temperature reducing part 5; and a chloride recovering step for recovering, at a filter part 6, fly ashes including chloride of the cleaning discharged water evaporated at the cleaned discharged water supplying step.SELECTED DRAWING: Figure 1