HM De-S at ESCO
HM De-S at ESCO – Esfahan Steel Company
Treatment stands: 2 (90° direction)
Annual capacity: 3.7 mtpy
Reactor: Open ladle
Ladle size: 130 t
Injection lines: 2
Injection type: Co-Injection
CaO/CaC2 + Mg
Storage silos: CaO/CaC2: 120 m³
Mg: 40 m³
Mg : CaO/CaC2 ratios: 1 : 2.8 – 1 : 4.0
Injection rates: CaO/CaC2: 15 – 30 kg/min
Mg: 6 - 12 kg/min
Injection lances: 2 (T-port)
T/S lances: 2
Transport gas: N2
Initial Sulphur content: Ø 550 ppm
Final Sulphur content: Ø 120 ppm (De-S: 78 %)
Injection time: Ø 7 min
Features: 1- Turntable to turn ladle car by 90°
2- Hydraulic powerpack to lift ladle out of ladle car for tilting and slag skimming