RotoFeed Carbon Injection into Electric Arc Furnace
The RotoFeed® is a volumetric device driven by an electric
motor and gearbox. Using a variable frequency drive, the speed of the RotoFeed® can be varied to provide the required injection feed rate, with predictability and accuracy. Different models are available for feed rate ranges as low as 2-10 lbs per min and as high as 400-2,000 lbs per min (at 50pcf bulk density).
Key Benefits
-Gravimetric Flow Control with better than ±1% accuracy
-Injection distance only limited by available air pressure
-Fixed air flow resists plugging irrespective of injection rate
-Up to 10:1 turndown range
-Can be programmed to follow a “recipe” reducing operator input
-Automatic calibration update at each heat
-Easily integrated with existing furnace control
-Multiple injection points from single vessel if required
-May be retrofit to existing carbon injection vessels for cost savings