METHOD AND APPARATUS FOR CLEANING A SUBSTANTIALLY VERTICAL SURFACE

摘要

A method and apparatus for cleaning a surface (18), such as a wall of a waste boiler (14) of a Kivcet furnace, are described. The apparatus comprises suspending a pair of spaced apart cables (24, 26) adjacent a surface to be cleaned, attaching ends of a rail (34) to respective ones of the cables, and the rail being reversibly moveable up and down the surface. A carriage (44) has a nozzle assembly, operative to emit a jet of water, with the carriage reversibly moveable along the rail. The nozzle assembly has a cleaning nozzle (40, 42) directed at the surface to be cleaned and a push nozzle (50, 52) directed away from the surface to counteract the momentum generated by the cleaning jet. The rail is moved from one of a top and bottom of the surface to another of the top and bottom of the surface, and the carriage is moved from one side of the rail to another, cleaning the surface as it moves