EAF sets world record at Hubei Shunle

Chinese steel producer Hubei Shunle has implemented two EAF Quantum electric arc furnaces from Primetals. With 50 melts per day, the EAFs hold a world record in electric steel production, the plant manufacturer Primetals says.

According to Primetals, the two EAF Quantum deliver exceptional operational performance, resulting in significant cost savings. The plant produces two million tons of high-strength seismic rebars annually.
The furnaces regularly accomplish 50 heats per day, setting a new world record in electric steelmaking. Both EAFs consistently achieve tap-to-tap times of less than 28 minutes. During 48 to 50 heats per day, power-on and power-off times are approximately 25 and 3 minutes, respectively. The EAF Quantum’s efficiency is further demonstrated by its low consumption figures, power consumption of less than 312 kilowatt-hours per ton and oxygen consumption below 24 cubic meters per ton.
According to Primetals, the EAF Quantum is characterized by several technological innovations that contribute to its strong performance. An off-gas utilization system preheats the scrap using waste heat from the production process, significantly reducing energy consumption during melting. The scrap preheating feature also shortens power-on times compared to other electric arc furnace technologies. These solutions lead to lower operating costs and reduced CO2 emissions. Another key feature is the FAST system, which allows for tapping and tap-hole filling under power-on conditions, significantly reducing tap-to-tap times.
Primetals holds several patents related to the EAF Quantum, including those for its unique shaft design and automatic tap-hole sand-filling system. Currently, 15 EAF Quantum plants are in operation across the globe, with more installations underway. 
Source: Primetals Technologies