Title:
DC ARC FURNACE AND METHOD FOR MELTING IRON SOURCE COMPRISING REDUCED IRON USING DC ARC FURNACE
Document Type and Number:
Japanese Patent JP2023180957
Kind Code:
A
Abstract:
To provide a technique for efficiently dissolving an iron source comprising reduced iron when the iron source is dissolved using a DC arc furnace.SOLUTION: A method for melting an iron source comprising reduced iron using a DC arc furnace comprises: a supply step for supplying the iron source from a supply port into the melting furnace; and a melting step for melting the iron source by generating an arc between an upper electrode and a lower electrode arranged in the melting furnace. The arc is generated between the upper electrode and the lower electrode to generate a downward flow between the upper electrode and the lower electrode for molten iron in the melting furnace, a central flow toward the downward flow is generated on the hot water surface of the molten iron, and the iron source is supplied to the central flow generated on the hot water surface to move toward the downward flow while floating the iron source on the hot water surface.SELECTED DRAWING: Figure 1
Inventors:
IDA KEISUKE
FUNAGANE HITOSHI
OKADA NOBUHIRO
FUNAGANE HITOSHI
OKADA NOBUHIRO
Application Number:
JP2022094657A
Publication Date:
December 21, 2023
Filing Date:
June 10, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
C21B11/10; C21C5/52; F27B3/08
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Ritsuo Fukuchi
Manabu Saito
Kenji Kimura
Jun Iwata
Shinji Mihashi
Ritsuo Fukuchi
Manabu Saito
Kenji Kimura
Jun Iwata