Patent ID: 8268231

Claim:
A method for treating a high-temperature exhaust gas containing dusts, said method comprising: introducing said high-temperature exhaust gas into a cooling tower through a gas duct; and spraying cooling water to said high-temperature exhaust gas in said cooling tower to cool said high-temperature exhaust gas, wherein said gas duct comprises two gas duct lines in such a manner that respective portions of said high-temperature exhaust gas from said two gas duct lines become equal to each other in flow velocity and flow volume, and respective axes of said two gas duct lines are arranged so as to extend in directions opposed to each other and approximately orthogonal to an axis of said cooling tower, when viewed from a direction along said axis of said cooling tower, and wherein two flows of the high-temperature exhaust gas from the two gas duct lines form a homogeneous upward flow without swirling and vortex within the cooling tower.