Title:
METHOD FOR REMOVING METAL ON FURNACE OPENING HOLE IN CONVERTER TYPE REFINING FURNACE
Document Type and Number:
Japanese Patent JPH10251735
Kind Code:
A
Abstract:
To efficiently remove metal stuck to a furnace opening hole in a converter type refining furnace while restraining the erosion of refractory on the furnace opening hole by blowing oxygen at the time of non-refining.
A lance 4 for melting the stuck metal is inserted in the furnace and the oxygen 14 is jetted while controlling so that the lowermost end in the perpendicular direction of the jetting locus of the oxygen does not reach the surface 4a of the metal 2 stuck to the furnace opening hole 1. The jetting direction of the oxygen 14 is defined as 40-90° angle to the longitudinal direction axial line 6 of the lance 4 and is directed downward or in a horizontal direction.
Inventors:
KODAIRA SATOSHI
TANAKA HIDESHIGE
IZAWA TOMOO
KIKUCHI ICHIRO
KAWASHIMA KAZUTOSHI
TANABE HARUYOSHI
TANAKA HIDESHIGE
IZAWA TOMOO
KIKUCHI ICHIRO
KAWASHIMA KAZUTOSHI
TANABE HARUYOSHI
Application Number:
JP6363397A
Publication Date:
September 22, 1998
Filing Date:
March 17, 1997
Export Citation:
Assignee:
NIPPON KOKAN KK
International Classes:
C21C5/46; (IPC1-7): C21C5/46
Attorney, Agent or Firm:
Natsuo Shiotani (1 person outside)
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