GB2018294A - Refining iron in a converter - Google Patents

Refining iron in a converter

Info

Publication number
GB2018294A
GB2018294A GB7910450A GB7910450A GB2018294A GB 2018294 A GB2018294 A GB 2018294A GB 7910450 A GB7910450 A GB 7910450A GB 7910450 A GB7910450 A GB 7910450A GB 2018294 A GB2018294 A GB 2018294A
Authority
GB
United Kingdom
Prior art keywords
ducts
converter
blown
blow
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.)
Granted
Application number
GB7910450A
Other versions
GB2018294B (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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 BE6046416A external-priority patent/BE865462A/en
Priority claimed from BE6046750A external-priority patent/BE873920A/en
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB2018294A publication Critical patent/GB2018294A/en
Application granted granted Critical
Publication of GB2018294B publication Critical patent/GB2018294B/en
Expired 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
    • C21C5/30—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)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

Molten iron is refined in a converter whose bottom has tuyeres with coaxial ducts. An oxidising gas such as pure oxygen is blown through the inner duct while a protective fluid such as a hydrocarbon is blown through the outer duct. During tipping of the converter from a sampling position to an emptying position after the blow, entry of molten metal is prevented by blowing fluids through the ducts, at least one of the fluids being a gas substantially consisting of CO2. If a corrective blow is necessary after sampling, this may be carried out by blowing an oxidising gas through the inner ducts and CO2 (above or with hydrocarbons) through the outer ducts.
GB7910450A 1978-03-29 1979-03-26 Refining iron in a converter Expired GB2018294B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6046416A BE865462A (en) 1978-03-29 1978-03-29 IMPROVEMENTS IN CONVERTER CAST IRON REFINING PROCESSES
BE6046750A BE873920A (en) 1979-02-02 1979-02-02 IMPROVEMENTS IN THE CONVERTER CAST IRON REFINING PROCESS

Publications (2)

Publication Number Publication Date
GB2018294A true GB2018294A (en) 1979-10-17
GB2018294B GB2018294B (en) 1982-05-12

Family

ID=25662135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910450A Expired GB2018294B (en) 1978-03-29 1979-03-26 Refining iron in a converter

Country Status (3)

Country Link
JP (1) JPS54133415A (en)
DE (1) DE2911715A1 (en)
GB (1) GB2018294B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE752893A (en) * 1969-07-08 1970-12-16 Forges De La Loire St Chamond METHOD AND DEVICE FOR COOLING A REFINING CONVERTER TUBE

Also Published As

Publication number Publication date
GB2018294B (en) 1982-05-12
JPS54133415A (en) 1979-10-17
DE2911715A1 (en) 1979-10-11
JPS6139376B2 (en) 1986-09-03

Similar Documents

Publication Publication Date Title
AU515871B2 (en) Lance pipe for blowing gases and refining agents into molten metals
AU528763B2 (en) Top blowing lance for bos vessels
GB2018294A (en) Refining iron in a converter
US3843354A (en) Pneumatic refining of pig iron
FR2158140A1 (en) Steel making - by top and bottom blowing oxygen with a fluid contg hydrocarbons
US4225341A (en) Refining iron in a converter
NO155938B (en) PROCEDURE FOR THE DECARBONIZATION OF MELTED STEEL.
ES454679A1 (en) Enclosure for steel converting apparatus
ES422325A1 (en) Process for the elaboration of chrome steels
GB1007241A (en) Improvements in or relating to a blowing device for carrying out metallurgical processes particularly for refining crude iron
JPS558457A (en) Oxygen bottom blasting converter
Nilles Refining Iron in a Converter
JPS5757819A (en) Converter steel making method
JPS556476A (en) Atmosphere shielding method in ladle refining
JPS5582717A (en) Charging method for granular slag-making agent to reaction furnace
SE7903594L (en) DEVICE FOR TREATMENT OF STEEL MELTER IN A COVER BY BOTTOM BLASTING
JPS55164017A (en) Gas blow-in tuyere for refining
GB1003953A (en) A process and apparatus for refining pig iron
JPS552759A (en) Manufacture of ultra-low-carbon stainless steel
SE8101051L (en) BOTTOM NOZZLE
GB880584A (en) Improvements in or relating to an installation for refining crude iron
FI831964A0 (en) PROCEDURE FOR THE PROCESSING OF METALLURGICAL BEARING
JPS5332813A (en) Preferential oxidizing method for molten iron
GB763531A (en) Process for the rapid removal of sulphur and silicon from pig iron
JPS563613A (en) Feeding method of basicity-control sand into converter

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee