DRY DESULFURIZATION APPARATUS

摘要

[PROBLEMS] To reliably accumulate a harmful substance. [MEANS FOR SOLVING PROBLEMS] A dry desulfurization apparatus comprising an adsorption tower (20) for bringing a harmful substance-containing waste gas into contact with a particulate adsorbent (A) to adsorb and remove the harmful substance, a regeneration tower (22) for heat regenerating the adsorbent (A), and a circulation path (24) through which circulation and transfer of the adsorbent (A) between the adsorption tower (20) and the regeneration tower (22) is carried out. A heater (28) is provided within the regeneration tower (22). The heater (28) is divided into an upper part heating block (32), an intermediate part heating block (34), and a lower part heating block (36). Each of the blocks (32, 34, 36) is provided with a plurality of electric heating bodies (32a, 34a, 36a), a temperature sensor (32b, 34b, 36b) for detecting the temperature of a part near the heating bodies (32a, 34a, 36a), and a controller (32c, 34c, 36c) for regulating the electric power energy supplied to the heating bodies (32a, 34a, 36a) based on the detected temperature of the sensor (32b, 34b, 36b).