Contrivance for the protection of the walls of a shaft furnace from the heat effect of metallurgical process

A contrivance for the protection of the walls of a shaft furnace from heat effect comprising a metal plate serving to shield the surface of walls facing the interior of the furnace and at least two essentially U-shaped tubes for a coolant linked up with the plate and attached to the furnace wall with their open ends. The plate is more longer in the vertical direction than wide in the horizontal one and is made up of separate blocks, each block being more wider in the horizontal direction than long in the vertical one and is provided with grooves accommodating the tubes in that surface which faces the furnace wall. The grooves are lined with a layer of heat conductor, and provided in the intervals between the grooves are means of fastening each block to the tubes which, in their turn, are provided with fasteners welded thereto and serving the purpose of attaching to the wall.