Thermal gasification of the organic content by heating scrap in a hot gas stream; at about 400 – 500 °C, the temperature here is below the melting point of aluminum
Combustion and post-combustion of gasified organic compounds take place in all chambers of the furnace. Gasification of hydrocarbons contributes energy to the melting process. Due to the constant high temperature (> 900 °C) and the controlled furnace atmosphere, the main chamber of the furnace is ideal for post-combustion
The preheated scrap melts exclusively due to contact with liquid melt (submerged melting process). Crucial here is an electromagnetic liquid-metal pump that transports sufficient melt to the scrap to ensure the necessary melting energy. This method results in the lowest metal loss
Near-continuous heating. That means the charging and melting activities do not interrupt the main burner operation
Most of the melting energy is introduced to the melt in the main chamber in the form of radiant heat. Using a regenerator system ensures high combustion efficiency at low energy consumption (< 600 kWh/ton)