Abstract: The present invention is a dual section liquid-cooled panel that lines a portion of the interior surface of a metallurgical furnace. The invented panel has a primary section disposed proximate to the center of the furnace and a secondary or back-up section adjacent the primary section. A three-way valve is controls the flow of fluid to the operating section of the panel. Initially, the primary section is operational and the valve is set to permit the flow of fluid to the primary section. If the primary section suffers structural damage, the valve can be used to re-direct the cooling fluid to the secondary section of the invented panel and the secondary section becomes operational until regular maintenance is scheduled to occur. Also disclosed is a method for repairing a damaged dual section liquid-cooled panel.

Abstract: A burner apparatus for introducing auxilliary heat into a furnace, particularly for metallurgical heating and melting.The apparatus includes a gland which fits into a wall of a furnace, a drum-like device which fits into a mating opening in the gland, a burner sleeve in the drum for receiving a burner such as an oxy-fuel burner and directing the burner flame into the interior of the furnace. The drum and the integral burner are rotatable about an axis. Rotation of the drum moves the burner into the operative position or into the standby position clear of the furnace. Provision is made for oscillating the drum and burner during the heating operation.