| 摘要 |
The flue gases formed in the combustion chamber of the incinerator furnace, after they have reached a temperature of about 450 DEG C., are brought to a temperature of 200 DEG -250 DEG C. by shock-type cooling. Before this shock-cooling (quenching), heat recovery from the flue gases is carried out in a high-temperature stage from 1000 DEG -1200 DEG C. to about 450 DEG C. and, after the shock-cooling, in a low-temperature stage from 200 DEG -250 DEG C. to about 150 DEG C. As a result, a de novo synthesis is avoided in which dioxins and furans are formed from the components of the flue gases and the fly ash.
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