METHOD OF CONVERTER CHARGING AND DEVICE FOR ITS EMBODIMENT Russian patent published in 1998 - IPC

FIELD: metallurgy, in particular, processes of converter charging, including hot-metal charging. SUBSTANCE: method includes scrap and hot-metal charging from hot-metal transfer ladle. Prior to hot-metal charging, ladle is placed into chamber with shaped tube. One end of tube is installed into ladle to under pig iron level, and the other end is oriented to converter mouth. Chamber is sealed and compressed gas is supplied to its working hollow, and pig iron is directed through tube to converter. Prior to hot-metal charging to converter from hot-metal transfer ladle, one end of shaped tube is placed to throat of mixer ladle to under hot metal, and the other end is oriented to working hollow of hot-metal transfer ladle, throat of mixer ladle is sealed. Gas under pressure is supplied to the working hollow and hot metal is directed through tube to hot-metal transfer ladle. The device for converter charging has hot-metal transfer ladle, means for its moving from mixer ladle to converter, means for hoisting and moving of hot-metal transfer ladle relative to converter. The device has chamber in which hot-metal transfer ladle is located. The chamber is tightly closed with removable cover through which shaped refractory tube runs, whose one end is installed in ladle, while the other is oriented to converter mouth. Tightly installed into throat of mixer ladle is shaped tube one end and tube other end is oriented to hot-metal transfer ladle. EFFECT: higher stability of process equipment surrounding the converter; prevention of blast-furnace slag from getting to converter; increased output of melting process and steel yield. 4 cl, 4 dwg