The pneumatic slag stopper plugs the tapping stream of the BOF converter by blowing inert gas into the tap hole at the end of steel tapping.
Customer challenges addressed
- Closing time < 2 seconds
- Plugging without contact to the tap hole
- Heat resistant
- Easy to retrofit
- Automatic actuation possible in combination with a slag detection system
- Max. 2 kg of slag carryover per ton of tapped liquid steel
- Less rephosphorization
- Reduced consumption of alloying & deoxidation material
- Improved ladle refractory time
- Higher safety