PL322128A1 - Method of oxygenating molten metal baths and oxygen lance therefor - Google Patents

Method of oxygenating molten metal baths and oxygen lance therefor

Info

Publication number
PL322128A1
PL322128A1 PL97322128A PL32212897A PL322128A1 PL 322128 A1 PL322128 A1 PL 322128A1 PL 97322128 A PL97322128 A PL 97322128A PL 32212897 A PL32212897 A PL 32212897A PL 322128 A1 PL322128 A1 PL 322128A1
Authority
PL
Poland
Prior art keywords
oxygenating
therefor
molten metal
oxygen lance
metal baths
Prior art date
Application number
PL97322128A
Other versions
PL187501B1 (en
Inventor
Andreas Kulkies
Wilfried Lissack
Karl Fasshauer
Original Assignee
Linde 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
Application filed by Linde Ag filed Critical Linde Ag
Publication of PL322128A1 publication Critical patent/PL322128A1/en
Publication of PL187501B1 publication Critical patent/PL187501B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • C22B15/003—Bath smelting or converting
    • C22B15/0041—Bath smelting or converting in 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C2005/4626—Means for cooling, e.g. by gases, fluids or liquids
    • 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
    • C21C5/4606—Lances or injectors
    • C21C5/4613—Refractory coated lances; Immersion lances

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The lance for blowing gases into liquid metal in a converter consists of two concentric pipes (4, 7). The inner pipe (4) serves for delivery of a gas containing oxygen, while an inert gas is delivered through the outer pipe (7). The lance is characterized by the fact that the distance between the inner and outer pipes is at least 1.5 mm, while the thickness of the outer pipe is at least 2.5 mm. The claim covering a method for blowing gases into liquid metal is summarized below.
PL97322128A 1996-09-18 1997-09-16 Method of oxygenating molten metal baths and oxygen lance therefor PL187501B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19638148A DE19638148A1 (en) 1996-09-18 1996-09-18 Oxygen lance and method for blowing liquid metal

Publications (2)

Publication Number Publication Date
PL322128A1 true PL322128A1 (en) 1998-03-30
PL187501B1 PL187501B1 (en) 2004-07-30

Family

ID=7806075

Family Applications (1)

Application Number Title Priority Date Filing Date
PL97322128A PL187501B1 (en) 1996-09-18 1997-09-16 Method of oxygenating molten metal baths and oxygen lance therefor

Country Status (5)

Country Link
EP (1) EP0832987B1 (en)
AT (1) ATE209703T1 (en)
CZ (1) CZ294660B6 (en)
DE (2) DE19638148A1 (en)
PL (1) PL187501B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE516609C2 (en) * 2000-06-29 2002-02-05 Ola Lundqvist Lance, procedure for making a lance and using a lance
EP2302082B1 (en) * 2009-09-03 2013-04-17 Linde AG Method for operating of a converter and apparatus for carrying out the method
CN110567280B (en) * 2019-09-04 2024-03-15 中国恩菲工程技术有限公司 Redox rifle and have its oxidation-reduction furnace

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990890A (en) * 1972-05-17 1976-11-09 Creusot-Loire Process for refining molten copper matte with an enriched oxygen blow
BE795117A (en) * 1973-02-07 1973-05-29 Centre Rech Metallurgique METHOD AND DEVICE FOR THE CONVERTING OF COPPERY MATERIALS
US4036481A (en) * 1973-06-14 1977-07-19 Pennsylvania Engineering Corporation Steel converter vessel tuyere block construction
US4023676A (en) * 1976-09-20 1977-05-17 Armco Steel Corporation Lance structure and method for oxygen refining of molten metal
DE3045992A1 (en) * 1980-12-05 1982-07-22 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR INJECTING HIGH OXYGEN-CONTAINING GAS IN A MELTING BATH CONTAINING NON-METALS
US4657586A (en) * 1985-10-25 1987-04-14 Union Carbide Corporation Submerged combustion in molten materials
US5435833A (en) * 1993-09-30 1995-07-25 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process to convert non-ferrous metal such as copper or nickel by oxygen enrichment

Also Published As

Publication number Publication date
DE59705520D1 (en) 2002-01-10
CZ294660B6 (en) 2005-02-16
EP0832987B1 (en) 2001-11-28
EP0832987A1 (en) 1998-04-01
CZ293197A3 (en) 1998-07-15
ATE209703T1 (en) 2001-12-15
PL187501B1 (en) 2004-07-30
DE19638148A1 (en) 1998-03-19

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Legal Events

Date Code Title Description
LAPS Decisions on the lapse of the protection rights

Effective date: 20060916