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ES514776A1 - Method of preheating and heating empty AOD converter vessels. - Google Patents

Method of preheating and heating empty AOD converter vessels.

Info

Publication number
ES514776A1
ES514776A1 ES514776A ES514776A ES514776A1 ES 514776 A1 ES514776 A1 ES 514776A1 ES 514776 A ES514776 A ES 514776A ES 514776 A ES514776 A ES 514776A ES 514776 A1 ES514776 A1 ES 514776A1
Authority
ES
Spain
Prior art keywords
burner
aod
preheating
heating
fuel
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
Application number
ES514776A
Other languages
Spanish (es)
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim GmbH
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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of ES514776A1 publication Critical patent/ES514776A1/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
    • 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
    • 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
    • C21C5/005—Manufacture 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/44—Refractory linings
    • C21C5/445—Lining or repairing the taphole
    • C21C2005/446—Dry linings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Details (AREA)

Abstract

Particularly in small AOD converters (1), it is almost indispensable to preheat their brick lining almost up to the bath temperature of the molten steel, before they are filled with melt. Otherwise, the temperature losses are excessive. Appropriate temperatures can be reached only by means of fuel/oxygen burners. For this purpose, the burner must be positioned above or in the converter opening. Because of the high exit gas temperatures, water-cooled burners are used in most cases. After heating, the burner is swivelled away from the converter opening. The burner represents additional expense. To avoid this, at least one of the AOD nozzles (2) located above the converter bottom is used during heating-up for forming the fuel/oxygen flame (14).
ES514776A 1981-08-05 1982-08-05 Method of preheating and heating empty AOD converter vessels. Expired ES514776A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813130972 DE3130972A1 (en) 1981-08-05 1981-08-05 "METHOD FOR PREHEATING AND HEATING EMPTY AOD CONVERTERS"

Publications (1)

Publication Number Publication Date
ES514776A1 true ES514776A1 (en) 1983-05-01

Family

ID=6138639

Family Applications (1)

Application Number Title Priority Date Filing Date
ES514776A Expired ES514776A1 (en) 1981-08-05 1982-08-05 Method of preheating and heating empty AOD converter vessels.

Country Status (4)

Country Link
EP (1) EP0071755A1 (en)
JP (1) JPS5827919A (en)
DE (1) DE3130972A1 (en)
ES (1) ES514776A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394395B (en) * 1989-01-13 1992-03-25 Veitscher Magnesitwerke Ag METALLURGICAL TUBE AND ARRANGEMENT THEREOF
FR2715882B1 (en) * 1994-02-09 1996-04-26 Lorraine Laminage Method and device for reheating or heating the internal wall of a metallurgical vessel.
KR100380135B1 (en) * 1998-12-16 2003-08-21 주식회사 포스코 Refractory Thermal Burner
CN103233097B (en) * 2013-05-03 2014-12-17 鄂州恺鑫铸业有限公司 Argon oxygen decarburization (AOD) furnace capable of shortening stainless steel refining time and method of furnace
DE102015105307A1 (en) * 2015-04-08 2016-10-13 Sms Group Gmbh converter
RU2710826C1 (en) * 2018-08-31 2020-01-14 Акционерное общество "ЕВРАЗ НТМК Нижнетагильский металлургический комбинат" (АО "ЕВРАЗ НТМК") Lining of converter bottom with bottom tuyeres

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT230005B (en) * 1961-10-18 1963-11-11 Voest Ag Forced draft burner
US3397878A (en) * 1965-11-19 1968-08-20 Union Carbide Corp Under-bath tuyere
US3412986A (en) * 1967-04-17 1968-11-26 Air Reduction Double-ended oxy-fuel burner
US3703279A (en) * 1969-08-15 1972-11-21 Joslyn Mfg & Supply Co Reactor
US3897048A (en) * 1973-06-15 1975-07-29 Pennsylvania Engineering Corp Metallurgical vessel and method of operating same
US3947002A (en) * 1975-07-30 1976-03-30 United States Steel Corporation Method of burning-in lining in bottom blown steelmaking furnace
US4208206A (en) * 1977-03-31 1980-06-17 Union Carbide Corporation Method for producing improved metal castings by pneumatically refining the melt
DE2816543C2 (en) * 1978-04-17 1988-04-14 Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg Steel making process

Also Published As

Publication number Publication date
DE3130972A1 (en) 1983-02-24
JPS5827919A (en) 1983-02-18
EP0071755A1 (en) 1983-02-16

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