Double-wall blow-in lance
Optimum efficiency thanks to enveloping air jet!
The enveloping and concentrated medium jet allows longer distances to the molten pool level to be bridged. By binding the medium jet of carbon, greater efficiency of the blown carbon is achieved
The lance type listed here has demonstrably achieved a much longer service life compared to conventional lance types, which usually consist of a metal injection lance and deflector pots, thanks to the use of ceramics.
Losses due to furnace extraction are minimised.
Foam slag production with blow-in coal in the electric arc furnace
Conventional process / deflection pots, pipes and material feed nozzle according to St 37/52
Improved process with ceramic double wall lance
Lance structure
- Inside: Al2O3 ceramic / SIC ceramic
- Outside:
- mild steel
- Stainless steel of various grades
- Heat-resistant steel
- Connection for the propellant gas to bind and concentrate the medium jet
- Lance sizes: Dimensions DN 25, 32, 40, 50