JPS57171605A - Blowing-in method after intermediate relining of blast furnace - Google Patents

Blowing-in method after intermediate relining of blast furnace

Info

Publication number
JPS57171605A
JPS57171605A JP5604981A JP5604981A JPS57171605A JP S57171605 A JPS57171605 A JP S57171605A JP 5604981 A JP5604981 A JP 5604981A JP 5604981 A JP5604981 A JP 5604981A JP S57171605 A JPS57171605 A JP S57171605A
Authority
JP
Japan
Prior art keywords
furnace
coke
pipe
wall
tuyere
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.)
Granted
Application number
JP5604981A
Other languages
Japanese (ja)
Other versions
JPS6040481B2 (en
Inventor
Keishi Matsuda
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP56056049A priority Critical patent/JPS6040481B2/en
Publication of JPS57171605A publication Critical patent/JPS57171605A/en
Publication of JPS6040481B2 publication Critical patent/JPS6040481B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

PURPOSE:To facilitate blowing-in by burning the coke substituted with part of the infurnace residues in the lower part of a tuyere while feeding the air used for heating said coke to the furnace bottom through a blast pipe thereby heating the bottom part of the furnace quickly and forming a good molten metal well part. CONSTITUTION:After the relining of a furnace body is finished by cooling the inside of a blast furnace, a steel sheet pile wall 16 is formed in the position leaving a required distance from the furnace wall 2 of the infurnace residues 6 in the lower part of a tuyere 4, and the residues 6 between the wall 2 and the wall 16 are removed by excavation, then, a blast pipe 18 is mounted through the tuyere 4 down to near a tap hole 12 in the furnace bottom part. The pipe 18 is made by applying castable linings on the inside and outside of a steel pipe in order to prevent erosion during elevation of heat. Then, coke 14 is packed up to an original stock line 10 in the excavated space, and high temp. air of about 300-900 deg.C is fed through the pipe 18 to burn the coke 14.
JP56056049A 1981-04-14 1981-04-14 How to fire up a blast furnace after intermediate renovation Expired JPS6040481B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56056049A JPS6040481B2 (en) 1981-04-14 1981-04-14 How to fire up a blast furnace after intermediate renovation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56056049A JPS6040481B2 (en) 1981-04-14 1981-04-14 How to fire up a blast furnace after intermediate renovation

Publications (2)

Publication Number Publication Date
JPS57171605A true JPS57171605A (en) 1982-10-22
JPS6040481B2 JPS6040481B2 (en) 1985-09-11

Family

ID=13016222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56056049A Expired JPS6040481B2 (en) 1981-04-14 1981-04-14 How to fire up a blast furnace after intermediate renovation

Country Status (1)

Country Link
JP (1) JPS6040481B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03260004A (en) * 1990-03-09 1991-11-20 Nippon Steel Corp Method for operating blast furnace
WO2024014126A1 (en) * 2022-07-11 2024-01-18 Ｊｆｅスチール株式会社 Control method and control device for blast furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03260004A (en) * 1990-03-09 1991-11-20 Nippon Steel Corp Method for operating blast furnace
WO2024014126A1 (en) * 2022-07-11 2024-01-18 Ｊｆｅスチール株式会社 Control method and control device for blast furnace

Also Published As

Publication number Publication date
JPS6040481B2 (en) 1985-09-11

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