Device for introducing gas into molten metal in controlled streams

摘要

A solid non-permeable refractory plug has a spaced stainless steel jacket and is located in a pocket block for incorporation in the normal refractory brick lining of a ladle to provide a structure through which gas can be introduced into the molten metal. An upstanding arcuate deflector on the stainless steel jacket covers a substantial portion of the open upper end of the jacket to deflect gas flowing upwardly through the device into two separate and distinct streams resulting in an improved stirring action in the molten metal while serving to displace the molten metal that would otherwise tend to flow into the device and close the gas passageway.