Cooling manner and cooling system null of the wall surface of the exhaust gas channel in refuse disposal

摘要

PROBLEM TO BE SOLVED: To prevent low melting point dust in waste gas from adhering to a wall surface of a waste gas flow passage, and further prevent the wall surface from being corroded. ;SOLUTION: This cooling method is one where in refuse disposal installation there is cooled a wall surface 4a of a waste gas flow passage 2 through which waste gas 3 at 300 to 1100°C containing high concentration hydrochloric acid and low melting point dust flows in which a cooling passage 6 is formed on a wall body 4 forming the waste gas flow passage 2, and cooling water at 50°C to 90°C is flowed to the cooling passage 6 to cool the wall surface 4a.;COPYRIGHT: (C)1998,JPO