Revamping of a basic oxygen furnace installation to provide an electric furnace facility

A method for revamping a steel making furnace installation to convert a basic oxygen furnace facility to an electric arc furnace facility, said basic oxygen furnace facility essentially including basic oxygen furnace vessel, bearing pedestals, furnace tilting drive, oxygen lance, fume duct, transfer cars for ladles containing tapped steel and slag, said method including the steps of:

• discarding basic oxygen furnace vessel, bearing pedestals, furnace tilting drive and oxygen lance;
• using existing bearing pedestals to support spaced apart horizontal rails;
• installing an electric arc furnace on a transfer car moveable along said rails between an operating position and a furnace exchange position, the electric arc furnace having a tapping orifice for discharging a burden treated in the furnace and a fume discharge opening;
• coupling said fume discharge opening to said fume duct;
• and
• using said transfer cars for ladles containing tapped steel and slag to transport steel and slag from said electric furnace.

An apparatus for revamping a steel making furnace installation to convert a basic oxygen furnace facility to an electric furnace facility, said basic oxygen furnace facility essentially including bearing pedestals to pivotally support a basic oxygen furnace vessel, a fume duct and transfer cars for ladles containing tapped steel and slag, said apparatus including the combination of:

• spaced apart horizontal rails supported by said bearing pedestals;
• an electric furnace supported on a transfer car for movement along said rails between an operating position formerly occupied by basic oxygen furnace when supported by said bearing pedestals and a furnace exchange position, the electric arc furnace having a tapping orifice for discharging a burden treated in the furnace and a fume discharge opening, said furnace being position by said rails for tapping steel and slag to ladles on said transfer cars;
• and
• fume duct sections for delivering fume received from said fume discharge opening to said fume duct.