Abstract: A sealing apparatus for a slag door of a metallurgical furnace, having a mounting assembly for mounting the apparatus to the furnace, and at least one closure element, moveable from an open position that is exterior of the slag door opening, to a closed position that effectively seals against the slag door and extends into the slag door opening with the rear panel of the closure element(s) being proximally aligned with the interior wall of the furnace. The apparatus may also have at least one wiping component moveable so as to sweep across the lower surface of the slag door to remove obstructions.

Abstract: The disclosed horizontally divisible furnace shell comprises a spherically shaped bottom section and truncated cone cover-like shaped middle and top wall sections stacked upon the bottom section, the form of the middle and top sections resulting in barrel-shaped shell walls. Each of the three modular sections has a metal casing with a refractory lining which may be made of firebrick or fireclay. Each wall section has an inwardly projecting ledge at its lower end for supporting the refractory lining. For interconnecting and aligning the sections, tapered locating pins and sockets are provided between all sections. Water-cooled flanges are preferably provided at the upper and lower ends of the top wall section. The joint between the middle and top wall sections is stepped upwardly adjacent the pouring spout so that such joint will be above the level of the molten metal, even when the furnace is tilted to pour out the metal.

Abstract: The disclosed horizontally divisible furnace shell comprises a spherically shaped bottom section and truncated cone cover-like shaped middle and top wall sections stacked upon the bottom section, the form of the middle and top sections resulting in barrel-shaped shell walls. Each of the three modular sections has a metal casing with a refractory lining which may be made of firebrick or fireclay. Each wall section has an inwardly projecting ledge at its lower end for supporting the refractory lining. For interconnecting and aligning the sections, tapered locating pins and sockets are provided between all sections. Water-cooled flanges are preferably provided at the upper and lower ends of the top wall section. The joint between the middle and top wall sections is stepped upwardly adjacent the pouring spout so that such joint will be above the level of the molten metal, even when the furnace is tilted to pour out the metal.