FR2079397A1 - Tuyere and convertor for refining pig - iron - Google Patents

Tuyere and convertor for refining pig - iron

Info

Publication number
FR2079397A1
FR2079397A1 FR7041112A FR7041112A FR2079397A1 FR 2079397 A1 FR2079397 A1 FR 2079397A1 FR 7041112 A FR7041112 A FR 7041112A FR 7041112 A FR7041112 A FR 7041112A FR 2079397 A1 FR2079397 A1 FR 2079397A1
Authority
FR
France
Prior art keywords
tuyere
gas
convertor
iron
supply
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
FR7041112A
Other languages
French (fr)
Other versions
FR2079397B1 (en
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.)
NEUNKIRCHER EISENWERK AG
Original Assignee
NEUNKIRCHER EISENWERK AG
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
Priority claimed from DE19702040824 external-priority patent/DE2040824C2/en
Application filed by NEUNKIRCHER EISENWERK AG filed Critical NEUNKIRCHER EISENWERK AG
Publication of FR2079397A1 publication Critical patent/FR2079397A1/en
Application granted granted Critical
Publication of FR2079397B1 publication Critical patent/FR2079397B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/48—Bottoms or tuyéres of converters
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

The production of brown fume during refining is reduced in an O2 blowing process in which the O2 gas current is surrounded by an endothermic reaction dissociable gas envelope by adding a similar gas to the central O2 supply as a cooling agent. The tuyere specif. comprises three coaxial tubes and has regulating means for the supply of the cooling/protective gas to the two outer tubes.
FR7041112A 1970-02-13 1970-11-17 Tuyere and convertor for refining pig - iron Granted FR2079397A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2006647 1970-02-13
DE19702040824 DE2040824C2 (en) 1970-08-17 Method for preventing the development of brown smoke when refining pig iron in a bottom-blowing converter

Publications (2)

Publication Number Publication Date
FR2079397A1 true FR2079397A1 (en) 1971-11-12
FR2079397B1 FR2079397B1 (en) 1973-10-19

Family

ID=25758639

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7041112A Granted FR2079397A1 (en) 1970-02-13 1970-11-17 Tuyere and convertor for refining pig - iron

Country Status (3)

Country Link
BE (1) BE758549A (en)
FR (1) FR2079397A1 (en)
LU (1) LU61936A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537996A1 (en) * 1982-12-20 1984-06-22 Siderurgie Fse Inst Rech Tuyere for a steelworks converter with oxygen injected through the bottom

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537996A1 (en) * 1982-12-20 1984-06-22 Siderurgie Fse Inst Rech Tuyere for a steelworks converter with oxygen injected through the bottom

Also Published As

Publication number Publication date
FR2079397B1 (en) 1973-10-19
LU61936A1 (en) 1971-05-04
BE758549A (en) 1971-04-16

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Legal Events

Date Code Title Description
ST Notification of lapse