(19)
(11) EP 4 771 326 A1

(12)

(43) Date of publication:
08.07.2026 Bulletin 2026/28

(21) Application number: 24782341.2

(22) Date of filing: 27.08.2024
(51) International Patent Classification (IPC): 
F27B 3/08(2006.01)
C21B 13/12(2006.01)
 C21B 11/10(2006.01)
C21C 5/52(2006.01)
(52) Cooperative Patent Classification (CPC):
C21B 13/12; C21B 11/10; C21C 5/5211; C21C 5/52; F27B 3/085; C21C 5/4673; C21C 2005/5288; F27D 3/1563; F27D 21/0028; F27D 19/00; F27D 2019/0003; F27B 3/28; F27B 3/19
(86) International application number:
PCT/IB2024/058307
(87) International publication number:
WO 2025/046455 (06.03.2025 Gazette 2025/10)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 31.08.2023 IT 202300017919

(71) Applicant: SMS group S.p.A.
33017 Tarcento (UD) (IT)

(72) Inventors:
  • PEZZARINI, Davide
    33017 Tarcento, UDINE (IT)
  • LANARI, Andrea
    33017 Tarcento, UDINE (IT)
  • PREDA, Sorin
    33017 Tarcento, UDINE (IT)

(74) Representative: Zanettin, Gianluigi et al
Jacobacci & Partners S.p.A. Piazza Mario Saggin, 2
35131 Padova
35131 Padova (IT)

   


(54) ELECTRIC ARC FURNACE WITH SLAG LEVEL REGULATION SYSTEM AND METHOD OF SLAG LEVEL REGULATION IN AN ELECTRIC ARC FURNACE