| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the corrosion prevention method for an exhaust gas treatment device that can also prevent the corrosion of hot air circulation ducts and exhaust gas bypass ducts being established to prevent the corrosion of the exhaust gas treatment device. SOLUTION: In this corrosion prevention method of the exhaust gas treatment device, an exhaust gas being generated in an incinerator is supplied to the exhaust gas treatment device via an inlet exhaust gas duct for treatment and is discharged from an outlet exhaust gas duct, a hot air gas is circulated via a hot air circulation duct when the incinerator is stopped, and the circulation of the hot water gas is stopped when the incinerator is normally operated. In this case, when the incinerator is normally operated, outside air is sucked into the hot air circulation duct for circulating, thus preventing the exhaust gas from flowing into the hot air circulation duct.</p> |
