SE501381C2 - Sätt att styra badtemperaturen vid konverterdrift - Google Patents

Sätt att styra badtemperaturen vid konverterdrift

Info

Publication number
SE501381C2
SE501381C2 SE9301659A SE9301659A SE501381C2 SE 501381 C2 SE501381 C2 SE 501381C2 SE 9301659 A SE9301659 A SE 9301659A SE 9301659 A SE9301659 A SE 9301659A SE 501381 C2 SE501381 C2 SE 501381C2
Authority
SE
Sweden
Prior art keywords
temperature during
bath temperature
ways
converter operation
water
Prior art date
Application number
SE9301659A
Other languages
English (en)
Other versions
SE9301659L (sv
SE9301659D0 (sv
Inventor
Dan Bergman
Original Assignee
Stiftelsen Metallurg Forsk
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 Stiftelsen Metallurg Forsk filed Critical Stiftelsen Metallurg Forsk
Priority to SE9301659A priority Critical patent/SE501381C2/sv
Publication of SE9301659D0 publication Critical patent/SE9301659D0/sv
Priority to PCT/SE1994/000455 priority patent/WO1994026937A1/en
Priority to AU70865/94A priority patent/AU7086594A/en
Publication of SE9301659L publication Critical patent/SE9301659L/sv
Publication of SE501381C2 publication Critical patent/SE501381C2/sv

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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising of stainless steel
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

501 381 Därigenom kan man köra längre med hög syrehalt och man kan därigenom for- korta processtiden.
Det har visat sig att explosionsrisken helt har eliminerats vid förfarandet enligt uppfinningen.

Claims (2)

501 381 Patentkrav
1. Sätt att styra badtemperaturen vid konverterdríft k ä n n e t e c k n a t a v att man styr temperaturen genom att vid behov injicera ett styrt flöde av vatten i badet och bildar en sköld av skyddsgas ringforrnigt kring vattenflödet.
2. Sätt enligt krav 1, k ä n n e t e c k n at a v att man tillför vatten genom ett centralt rör (15) som en stråle, tillför syrgas genom en ringformig spalt som bildas mellan centralröret (15) och ett mellanrör (14) och tillför skyddsgasen genom en ringforrnig spalt som bildas mellan mellanröret (14) och ett ytterrör (13).
SE9301659A 1993-05-14 1993-05-14 Sätt att styra badtemperaturen vid konverterdrift SE501381C2 (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9301659A SE501381C2 (sv) 1993-05-14 1993-05-14 Sätt att styra badtemperaturen vid konverterdrift
PCT/SE1994/000455 WO1994026937A1 (en) 1993-05-14 1994-05-16 A method of controlling the temperature of the bath in a converter
AU70865/94A AU7086594A (en) 1993-05-14 1994-05-16 A method of controlling the temperature of the bath in a converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9301659A SE501381C2 (sv) 1993-05-14 1993-05-14 Sätt att styra badtemperaturen vid konverterdrift

Publications (3)

Publication Number Publication Date
SE9301659D0 SE9301659D0 (sv) 1993-05-14
SE9301659L SE9301659L (sv) 1994-11-15
SE501381C2 true SE501381C2 (sv) 1995-01-30

Family

ID=20389939

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9301659A SE501381C2 (sv) 1993-05-14 1993-05-14 Sätt att styra badtemperaturen vid konverterdrift

Country Status (3)

Country Link
AU (1) AU7086594A (sv)
SE (1) SE501381C2 (sv)
WO (1) WO1994026937A1 (sv)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE781241A (fr) * 1971-05-28 1972-07-17 Creusot Loire Procede d'affinage des aciers allies contenant du chrome et plus specialement des aciers inoxydables

Also Published As

Publication number Publication date
AU7086594A (en) 1994-12-12
SE9301659L (sv) 1994-11-15
WO1994026937A1 (en) 1994-11-24
SE9301659D0 (sv) 1993-05-14

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