Title:
METHOD AND SYSTEM FOR MELTING COLD IRON SOURCE
Document Type and Number:
Japanese Patent JPH11125488
Kind Code:
A
Abstract:
To provide a method and a system operable in the daytime and nighttime to produce molten steel by melting a cold iron source, e.g. iron scrap, at low cost.
A melting furnace 1 containing iron scrap 3 comprises an oxygen burner 16 having a capacity for melting the iron scrap 3 in the melting furnace 1 by itself, and an arc electrode 6 having a capacity for melting the iron scrap 3 in the melting furnace 1 by itself. The iron scrap 3 is melted principally by the arc electrode 6 during the time band of low electric cost and melted principally by the oxygen burner 16 during the time band of high electric cost.
Inventors:
MIZUKAMI HIDEAKI
WATABE MASAYUKI
MAKI TOSHIMICHI
WATABE MASAYUKI
MAKI TOSHIMICHI
Application Number:
JP22864298A
Publication Date:
May 11, 1999
Filing Date:
July 29, 1998
Export Citation:
Assignee:
NIPPON KOKAN KK
International Classes:
C21C5/52; F27B3/10; F27D11/08; F27D13/00; (IPC1-7): F27B3/10; C21C5/52; F27D11/08; F27D13/00
Attorney, Agent or Firm:
Hiroshi Takayama