Top blowing lance system: 

• Oxygen blowing for forced decarburization and chemical heating 
• Heating of RH vessel refractory material by gas /oxygen combustion 
• Powder blowing for desulfurization Fast skull removal by usage of the oxygen jet 
• Advanced ignition by external ignition facility 

Salzgitter Flachstahl GmbH; 300 t RH Plant:
 

• Suction capacity of vacuum pump: 800 kg/h @ 0,67 mbar // 4000 kg/h @ 100 mbar 
• Oxygen blowing rate: 2.500 Nm3/h 
• Heating burner capacity: 3,5 MW 
• Snorkle diameter: 650 mm 
• Steel circulation rate: approx. 150 t/min 
• Number of alloy bunkers: 18 
• Vacuum alloying: 2 Alloy hoppers // 2 Direct feeders Al/Scrap 
• Fume treatment plant: 90.000 m3/h 
• Wire feeding: 4 strand