DE59705520D1 - Oxygen lance and method for blowing liquid metal - Google Patents

Oxygen lance and method for blowing liquid metal

Info

Publication number
DE59705520D1
DE59705520D1 DE59705520T DE59705520T DE59705520D1 DE 59705520 D1 DE59705520 D1 DE 59705520D1 DE 59705520 T DE59705520 T DE 59705520T DE 59705520 T DE59705520 T DE 59705520T DE 59705520 D1 DE59705520 D1 DE 59705520D1
Authority
DE
Germany
Prior art keywords
liquid metal
oxygen lance
blowing liquid
lance
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.)
Expired - Fee Related
Application number
DE59705520T
Other languages
German (de)
Inventor
Dipl-Ing Fasshauer
Dipl-Ing Kulkies
Dipl-Ing Lissack
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.)
Linde GmbH
Original Assignee
Linde Gas 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 Gas AG filed Critical Linde Gas AG
Application granted granted Critical
Publication of DE59705520D1 publication Critical patent/DE59705520D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

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.
DE59705520T 1996-09-18 1997-09-10 Oxygen lance and method for blowing liquid metal Expired - Fee Related DE59705520D1 (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 (1)

Publication Number Publication Date
DE59705520D1 true DE59705520D1 (en) 2002-01-10

Family

ID=7806075

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19638148A Withdrawn DE19638148A1 (en) 1996-09-18 1996-09-18 Oxygen lance and method for blowing liquid metal
DE59705520T Expired - Fee Related DE59705520D1 (en) 1996-09-18 1997-09-10 Oxygen lance and method for blowing liquid metal

Family Applications Before (1)

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DE19638148A Withdrawn DE19638148A1 (en) 1996-09-18 1996-09-18 Oxygen lance and method for blowing liquid metal

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
PL187501B1 (en) 2004-07-30
CZ293197A3 (en) 1998-07-15
EP0832987A1 (en) 1998-04-01
PL322128A1 (en) 1998-03-30
ATE209703T1 (en) 2001-12-15
DE19638148A1 (en) 1998-03-19
CZ294660B6 (en) 2005-02-16
EP0832987B1 (en) 2001-11-28

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: LINDE AG, 65189 WIESBADEN, DE

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee