STAIN REMOVAL METHOD AND STAIN REMOVAL APPARATUS FOR WALL FACE

摘要

PROBLEM TO BE SOLVED: To easily remove stains adhering to the wall face of a tunnel or the like without using washing water. SOLUTION: Deposits adhering as stains to the inner wall face 100 of a tunnel are removed by a stain removal apparatus 1. The stain removal apparatus comprises a heat radiation part 2 provided with a halogen lamp and burns and evaporates the deposits for removing the deposits by radiation heat by radiating light from the halogen lamp of the heat radiation part 2. Further, air is blown to the part where the combustion and evaporation is carried out by a blower 5 and at the same time the wall face to which the burned and evaporated deposits is cooled by air from a compressor 6. Since the stains of the inner circumferential wall face 100 are removed by burning and evaporating the deposits in such a manner, washing of the wall face 100 with washing water is made no need and noise generated in the case of removing stains with washing water is not generated. COPYRIGHT: (C)2004,JPO