JPS55110707A - Blowing-out method of blast furnace - Google Patents

Blowing-out method of blast furnace

Info

Publication number
JPS55110707A
JPS55110707A JP1745879A JP1745879A JPS55110707A JP S55110707 A JPS55110707 A JP S55110707A JP 1745879 A JP1745879 A JP 1745879A JP 1745879 A JP1745879 A JP 1745879A JP S55110707 A JPS55110707 A JP S55110707A
Authority
JP
Japan
Prior art keywords
blast furnace
tuyere
level
discharge port
blowing
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
JP1745879A
Other languages
Japanese (ja)
Inventor
Junji Kariya
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP1745879A priority Critical patent/JPS55110707A/en
Publication of JPS55110707A publication Critical patent/JPS55110707A/en
Pending 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)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To evacuate blast furnace by reducing residues to the discharge level of molten pig iron by sending hot air through tuyere mounted to one pig iron discharge port from an air supply branched pipe into the blast furnace after the blowing-out of blast furnace. CONSTITUTION:The fluidity of molten slag is improved by replacing the inclusion of the blast furnace 3 with coke and lime stone alone and then reduced to the tuyere 1 level by buring the includion b by sending hot air through the tuyere 1 from the air supply branched pipe 2 into the furnace 3. After the blowing-out operation, hot air from the air supply branched pipe 2' through the tuyere 6 mounted to one pit iron discharge port 4 at the lower part of a molten metal trap is sent tinto the blast furnace 3, whereby the residues b present at the level of the tuyere 1 is burned, molten slag formed is discharged from the other pit iron discharge port 5, and then the level of the residue b is reduced to the level of the pig iron discharge port. By this blown-out method, the repairing period of the blast furnace 3 can shortened.
JP1745879A 1979-02-16 1979-02-16 Blowing-out method of blast furnace Pending JPS55110707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1745879A JPS55110707A (en) 1979-02-16 1979-02-16 Blowing-out method of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1745879A JPS55110707A (en) 1979-02-16 1979-02-16 Blowing-out method of blast furnace

Publications (1)

Publication Number Publication Date
JPS55110707A true JPS55110707A (en) 1980-08-26

Family

ID=11944568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1745879A Pending JPS55110707A (en) 1979-02-16 1979-02-16 Blowing-out method of blast furnace

Country Status (1)

Country Link
JP (1) JPS55110707A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669311A (en) * 1979-11-09 1981-06-10 Sumitomo Metal Ind Ltd Method of operating reducing blowing-out for blast furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669311A (en) * 1979-11-09 1981-06-10 Sumitomo Metal Ind Ltd Method of operating reducing blowing-out for blast furnace

Similar Documents

Publication Publication Date Title
DE59507244D1 (en) Method and device for operating a double-vessel arc furnace
CN107058672A (en) A kind of method of use hot metal containing low silicon converter smelting Low-phosphorus Steel
JPS5687617A (en) Steel making method using arc furnace
CN108344307B (en) A kind of revolving furnace fume hood accumulated slag method for cleaning and revolving furnace fume hood accumulated slag clear up rifle
JPS55110707A (en) Blowing-out method of blast furnace
CN110656215A (en) Method for preventing unsuccessful blowing and igniting of converter
ES459836A1 (en) Treating molten metallurgical slag
GB1507918A (en) Cupola furnace and a process for melting iron in such a furnace
JPS5698410A (en) Sealing method of tap hole of blast furnace
JPS55125211A (en) Processing method of steel-making dust containing zinc and blast furnace gas ash
GB2018295A (en) Process for melting metal in a vertical shaft furnace
JPS5468789A (en) Treating method for blast furnace slag
CN213266567U (en) Blast furnace tuyere device utilizing adjusting device
JPH0196308A (en) Method for operating blow-down in blast furnace
JPS57192212A (en) Method of repairing tuyere for bottom-blowing inert gas into converter
FR2438090A1 (en) Magnesia contg. lining for arc furnace - with increased life achieved by including dolomite lime in the cpds. added with charge to form slag
JPS5337106A (en) Repairing method of blast furnace shell
SU1126341A1 (en) Method of making blast-furnace ferromanganese
SU1127905A1 (en) Method for smelting steel in hearth furnaces
JPS5669311A (en) Method of operating reducing blowing-out for blast furnace
CN117660718A (en) Method for opening new furnace to bake 120t converter without explosion
Nichols Models of blast furnaces for smelting iron
SU115070A1 (en) Installation for blowing iron with oxygen
JPS5511103A (en) Repairing method for refractory material around tuyere of bottom-blown converter etc.
JPS5770187A (en) Gasifying method for coal by fixed bed furnace