Abstract: An improved method and apparatus for forming metallized iron by direct reduction of particulate iron oxide is disclosed. Spent reducing gas is recycled from the reduction furnace through a cooler-scrubber and a catalyst-containing stoichiometric gas reformer. Upon removing the process gas from the cooler-scrubber, it is contacted with a chlorine dioxide spray, then compressed and cooled, the sulfur compound removed, and the process gas recycled either into the furnace cooling zone, or directly into the reformer, or divided and directed into both uses. Thus, most of the sulfur containing components of the spent reducing gas are removed, thereby reducing the sulfur contamination of the gas reformer catalyst. Reducing sulfur contamination of the gas reformer catalyst improves the overall efficiency of the direct reduction process. Either high sulfur ores, or high sulfur process gas, or both can be utilized in the invented process.

Abstract: An improved method and apparatus for forming metallized iron by direct reduction of particulate iron oxide is disclosed. Spent reducing gas is recycled from the reduction furnace through a cooler-scrubber and a catalyst-containing stoichiometric gas reformer. Upon removing the process gas from the cooler-scrubber, it is contacted with a chlorine dioxide spray, then compressed and cooled, the sulfur compound removed, and the process gas recycled either into the furnace cooling zone, or directly into the reformer, or divided and directed into both uses. Thus, most of the sulfur containing components of the spent reducing gas are removed, thereby reducing the sulfur contamination of the gas reformer catalyst. Reducing sulfur contamination of the gas reformer catalyst improves the overall efficiency of the direct reduction process.

Abstract: A mold oscillator for a continuous casting machine in which a mold is mounted for vertical reciprocation on a mold table frame, the machine having an enclosed spray chamber beneath the mold for spray cooling of a continuous casting therein as it emerges from the mold, in which an oscillator cam connected to a drive motor is connected through a yoke to first and second vertical shafts fixed to the mold table frame at their upper ends, and are seated within and vertically oscillatable within tubular guide means and ball bushings therein, which control the alignment of the shafts, thus reducing horizontal vibration and strand misalignment.

Abstract: An aluminum wire feeder consisting of a flexible conduit and positioning tube are connected to a removable shroud by a tube holder. A feed mechanism provides a continuous source of aluminum wire for feeding the same to a continuous casting mold, only during shrouding conditions.

Abstract: Apparatus for protecting a molten metal pouring stream between a teeming vessel and a hot metal receiving mold beneath the vessel, including a heat resistant metal shroud tube, carrying at its lower extremity a replaceable, flexible, high temperature, heat resistant cloth tube extending downwardly therefrom.

Abstract: A shrouding apparatus protects a molten metal stream from atmospheric contamination by establishing a protective atmosphere around the molten metal stream. The apparatus is held tightly against the vessel from which the stream is poured. The apparatus includes means for elevating and lowering the shroud, means for aligning the shroud with the pouring stream, and means for introducing a protective atmosphere to the interior of the shroud.