installation for treating a rauchgasstromes

摘要

in known fume purifying is a entstickungsreaktor (5), a heat exchanger (3). in the zustru00f6mende flue gas, e.g. by an upstream wet desulphurization - is cooled by heat exchange with the flue gas, abstru00f6menden again heated. the heat exchanger (3) must be cleaned from time to time. before cleaning a cooling is required.the cooling is only limited time is available. the invention is a rapid cooling system. upstream of sekundu00e4rseitigen entrance of the heat exchanger (3) if a i kaltluftzufuhr (19, 20, 21) in the rauchgaskanal. downstream of the entstickungsreaktor (5) is a absperrbarer channel (26) of rauchgaskanal diverted.the rauchgaskanal is downstream of the junction with a valve (25) are provided. the cooling of the heat exchanger (3) through a kaltluftstrom accelerated, on the secondary side of the heat exchanger (3) is conducted.the air flow, and then the entstickungsreaktor (5) passes and in heat in the secondary side of the heat exchanger bypass bypass (3). plants were to desulphurize and entsticken flue gas of grou00dffeuerungen.