초록 ▼

A vortex inhibitor for use in tundishes, ladles, or metal making furnaces prevents the contamination of high quality molten steel by the slag layer which rides atop the surface of molten metal within such receptacles comprises a tapered polygonal body of castable refractory material whose specific g

A vortex inhibitor for use in tundishes, ladles, or metal making furnaces prevents the contamination of high quality molten steel by the slag layer which rides atop the surface of molten metal within such receptacles comprises a tapered polygonal body of castable refractory material whose specific gravity is less than the specific gravity of the molten metal but greater than the specific gravity of the slag. The refractory body is buoyantly supported at the interface of the layer of slag and the molten metal and includes a weighted apex so that the apex depends toward nozzle opening within receptacle. Thus, the body centers itself within the swirl of fluid generated during discharge of the fluid through the nozzle, and the inertia of the body substantially deenergizes the vortex so as to avoid formation of a suction funnel which typically draws the slag layer into and through the nozzle with the molten metal below the previously known critical level within the receptacle.

대표청구항 ▼

In combination with molten metal receptacles wherein a layer of slag covers a layer of molten metal and having a discharge nozzle beneath the level of molten metal, the improvement comprising; means for inhibiting the suction generated by the vortex formed above the discharge nozzle to prevent mixtu

In combination with molten metal receptacles wherein a layer of slag covers a layer of molten metal and having a discharge nozzle beneath the level of molten metal, the improvement comprising; means for inhibiting the suction generated by the vortex formed above the discharge nozzle to prevent mixture of the slag with the molten metal being discharged through said discharge nozzle, wherein said means comprises a polygonal body of refractory material tapered along its entire length and means for supporting said body at the interface of said layer of slag and layer of molten metal over said discharge nozzle whereby said body generally conforms with the shape of the vortex substantially along its entire length.