JPS55134112A - Erosion suppressing method of blast furnace tapping spout - Google Patents

Erosion suppressing method of blast furnace tapping spout

Info

Publication number
JPS55134112A
JPS55134112A JP4230679A JP4230679A JPS55134112A JP S55134112 A JPS55134112 A JP S55134112A JP 4230679 A JP4230679 A JP 4230679A JP 4230679 A JP4230679 A JP 4230679A JP S55134112 A JPS55134112 A JP S55134112A
Authority
JP
Japan
Prior art keywords
tapping spout
molten iron
spout
blast furnace
side wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4230679A
Other languages
Japanese (ja)
Inventor
Takeki Yoshitomi
Tsutomu Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kurosaki Refractories Co Ltd
Original Assignee
Kurosaki Refractories Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kurosaki Refractories Co Ltd filed Critical Kurosaki Refractories Co Ltd
Priority to JP4230679A priority Critical patent/JPS55134112A/en
Publication of JPS55134112A publication Critical patent/JPS55134112A/en
Pending legal-status Critical Current

Links

Landscapes

  • Furnace Charging Or Discharging (AREA)
  • Blast Furnaces (AREA)

Abstract

PURPOSE: To suppress the local erosion of spout material and achieve the longer life of spot material by inclining the side wall portion near the molten iron-slag interface of the tapping spout at the specified angle to the outer side.
CONSTITUTION: The side wall portion 6 of the side wall surface of a blast furnace tapping spout 4', near the interface where molten iron 2 and slag 3 contact is inclined outward by 30W80° from the vertical direction. By this tapping spout shape, the contact area of the FeO formed at the molten iron-slag interface and the SiC in the tapping spout material is narrowed and their reaction is suppressed. Hence, the local erosion at the molten iron-slag interface of the tapping spout 4' is effectively prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP4230679A 1979-04-06 1979-04-06 Erosion suppressing method of blast furnace tapping spout Pending JPS55134112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4230679A JPS55134112A (en) 1979-04-06 1979-04-06 Erosion suppressing method of blast furnace tapping spout

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4230679A JPS55134112A (en) 1979-04-06 1979-04-06 Erosion suppressing method of blast furnace tapping spout

Publications (1)

Publication Number Publication Date
JPS55134112A true JPS55134112A (en) 1980-10-18

Family

ID=12632327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4230679A Pending JPS55134112A (en) 1979-04-06 1979-04-06 Erosion suppressing method of blast furnace tapping spout

Country Status (1)

Country Link
JP (1) JPS55134112A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124511A (en) * 1984-11-20 1986-06-12 Kawasaki Steel Corp Method for inhibiting damage of side wall of iron spout for blast furnace
JPS627810A (en) * 1985-07-02 1987-01-14 Kobe Steel Ltd Refining method in molten iron spout

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124511A (en) * 1984-11-20 1986-06-12 Kawasaki Steel Corp Method for inhibiting damage of side wall of iron spout for blast furnace
JPH0362766B2 (en) * 1984-11-20 1991-09-27 Kawasaki Seitetsu Kk
JPS627810A (en) * 1985-07-02 1987-01-14 Kobe Steel Ltd Refining method in molten iron spout
JPS6242010B2 (en) * 1985-07-02 1987-09-05 Kobe Steel Ltd

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