| abstract |
A sludge incineration plant having a sludge dryer has a higher effective heat utilization rate. SOLUTION: Sludge dryer 2 for drying moisture-containing sludge S1, incinerator 3 for incinerating dried sludge S2 discharged from sludge dryer 2, and power generator 5 for generating power using incinerator 3 as a waste heat source, The exhaust gas cleaning device 11 that makes the exhaust gas EG discharged from the incinerator 3 contact the cleaning liquid W1, the first heat exchanger 26 that heats the liquid HW by the heat of the cleaning liquid W2 discharged from the exhaust gas cleaning device 11, and the first At least one of the supply path 7 for supplying the liquid HW heated by the heat exchanger 26 to the sludge dryer 2 as a heat source, the exhaust gas EG upstream of the exhaust gas cleaning device 11 and the power generation device 5 in the middle of the supply path 7 The sludge incineration plant 1 which has the 2nd heat exchangers 27 and 28 which heat the liquid HW with the heat | fever collect | recovered from. [Selection] Figure 1 |