Page 24 - Steel Metallurgy eMagazine Volume June 2024

EAF QUANTUM IN OPERATION

• Excellent access to the roof
• Very short exchange time of the delta
refractory piece (<15 minutes) after
more than 2500 heats
• DRI feeding through the roof is
possible up to 70%

Year Milestone
- Fuchs Systemtechnik GmbH, now
1988 of Primetals Technologies, started the
development of shaft EAF.
- The first finger shaft furnace started
1994
up at Hylsa in Monterrey, Mexico.
- The 4 generation of Primetals pre-
th
2008 heating shaft technology was installed in
Stahl Gerlafingen, Switzerland.
- The 1 EAF Quantum started at
st
2014 Talleres y Aceros S.A. de C.V. (Tyasa),
Mexico (100 t).
nd
- The 2 EAF Quantum started at GPH Fig.3 -Comparison of EAF Quantum productivity versus other EAFtechnologies.
Ispat, Bangladesh (80 t).
- The 3 EAF Quantum (1st in China)
rd
started reliable production at WuzhouY-
2020 ongda Iron & Steel Co., Ltd, China EAF furnaces. Some operational data have been implemented in the following
- The 4 EAF Quantum started at Gui- of those shaft and finger shaft furnaces EAF Quantum furnaces.
th
lin Pinggang Steel Co., Ltd, China. have been reviewed independently
th
- The 5 EAF Quantum, Guangxi Guix- elsewhere[1]. The first EAF Quantum For an EAF Quantum, electrical energy
in Iron & Steel Co., Ltd, China. performance at Tyasa, Mexico, started in consumption of as low as 295 kWh/t
th
th
- The 6 & 7 EAF Quantum, Fujian 2014and has been examined thoroughly at lower oxygen consumption—i.e., 24
Dingsheng Iron & Steel Co., Ltd, China elsewhere [2]. EAF Quantum at Tyasa Nm3/tls—has been achieved. The best-
2021
- The 8th& 9th EAF Quantum, Wuhan is still one of the excellent performers. reported record for graphite electrode
Shunle Iron & Steel Co., Ltd, China Since the first EAF Quantum at Tyasa, consumption for EAF Quantum is less
- The 10th EAF Quantum, Heyuan- many improvements and lessons learned than 0.65 kg/tls in 2022. One EAF
Derun Iron & Steel Co., Ltd, China.
- The 11th EAF Quantum, Anhui
2022 Hongtai Iron & Steel Co., Ltd, China.
- The 12 EAF Quantum, Chengdu
th
Changfeng Iron & Steel Co., Ltd, China.
- The 13 &14 EAF Quantum, Shagang
th
th
Group, and Huai’an Special Steel Co.,
Ltd, China (utilizing up to 30% hot
metal charging)
2023
- The most recent 150t Quantum at To-
syali Demir Celik Sanayi A.S. (Türkiye)
was commissioned in May 2023 (15th
Quantum, 16th in Phase2).
Table 1 - History and reference list of the EAF
Quantum

PERFORMANCE OF
EAF QUANTUM

EAF Quantum continues the excellent
operational performance of its Fig.4- Heats (daily) and Tap-to-Tap Time and Power On Time (median daily data).
predecessors, i.e. shaft and finger shaft

20 STEEL & METALLURGY JUNE 2024