KraMZ designed, manufactured and installed in its casthouse a unique system for electromagnetic mixing of liquid aluminium in ladle
It is planned to use the installed system to remove bath from primary aluminium, which bath is inevitably involved into metal from reduction baths with molten metal. When filling induction furnaces, the bath penetrates in channels of induction units and so causes their coverage with impurities and failure.
The electromagnetic mixing system will be applied for future scheme of out-furnace bath removal from liquid aluminium in transportation ladles. After electromagnetic mixing, molten metal free of impurities will be filled into the induction channel furnace to produce alloy.
Another purpose of the system is preparing aluminium master alloys. Currently, master alloys are prepared in crucible induction furnaces and they are very energy-intensive. With this system, master alloys will be prepared in transportation ladles using the heat of liquid primary aluminium whose temperature is 750-770 degrees. Its mixing in the ladle will allow reducing preparation time, electricity consumption and increasing productivity of the process.
Tests of the system demonstrated its high efficiency. Pilot operations at the electromagnetic mixing system will commence in the nearest future.