Southwire Company, LLC

National Steel Corporation

Gerald D Evrard

Anthony J Kamalich

Henry S Cook

This invention relates to a device for cleaning opposed walls of a furnace pit. The device comprises a plurality of rotating screw-type cutters for removing built-up deposits upon the opposed walls of the furnace pit, a plurality of linkage arms for carrying the plurality of rotating screw-type cutters, a plurality of air motors for independently adjusting the speed of each half of the plurality of rotating screw-type cutters along each opposed wall of the furnace pit, and universal joints for allowing floating adjustment of each of the plurality of rotating screw-type cutters against each opposed wall of the furnace pit. The device also comprises piston-cylinder arrangements for moving the plurality of rotating screw-type cutters into and out of engagement with the built-up deposits upon the opposed walls of the furnace pit, a plate for allowing lifting of the rotating screw-type cutters up and down along the opposed walls of the furnace pit, a crane for lifting the plate, a vacuum pump for sucking out deposits removed from the opposed walls of the furnace pit, and at least one overhead rail for allowing travel of the crane from one furnace pit to another furnace pit.

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Cannelton, IN, United States of America

Gerald D Evrard