The URTF is typically used by secondary recyclers for melting dross and low-grade scrap (with organic impurities >10%) or high iron content. A wide range of sizes from 3 to 14 m³ (6 to 27 tons) and melting rates from 1,5 to 6 tons/h is available.
The URTF offers a wide tilting range from -20 to +40°. As a unique feature the furnace can be operated in various tilting angles from -20 to -10°. The tiltback of -20° supports quick charging. The high degree of automation for charging, melting, tapping and slag tilting allows the plant to be operated by only 1 operator + 1 supervisor per shift.
With the oxy-fuel burner system short cycle times, respectively high melting rates are achieved.In combination with integrated oxygen lances and permanent CO measurement the specific gas consumption is minimized. By providing an additional integrated post combustion system, the HE-URTF complies with the most stringent European emission regulation standards.
Today the standard low-salt process is the common way of operating an URTF. With a salt factor of 0,2 – 0,5 optimum metal yield is achieved. The salt-free AluRec® process is an economic and environmentally friendly alternative for operating the URTF to avoid hazardous salt slag.