EP0452445A1 - Procede pour l'introduction d'additifs coulants dans un recipient metallurgique et recipient s'y rapportant - Google Patents

Procede pour l'introduction d'additifs coulants dans un recipient metallurgique et recipient s'y rapportant

Info

Publication number
EP0452445A1
EP0452445A1 EP90915469A EP90915469A EP0452445A1 EP 0452445 A1 EP0452445 A1 EP 0452445A1 EP 90915469 A EP90915469 A EP 90915469A EP 90915469 A EP90915469 A EP 90915469A EP 0452445 A1 EP0452445 A1 EP 0452445A1
Authority
EP
European Patent Office
Prior art keywords
vessel
additives
metallurgical
lid
wall
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.)
Ceased
Application number
EP90915469A
Other languages
German (de)
English (en)
Inventor
William Wells
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.)
Kortec AG
Original Assignee
Kortec 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 Kortec AG filed Critical Kortec AG
Publication of EP0452445A1 publication Critical patent/EP0452445A1/fr
Ceased 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
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • 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
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • F27D1/1678—Increasing the durability of linings; Means for protecting
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0033—Linings or walls comprising heat shields, e.g. heat shields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • Each of the delivery pipes has a blocking element 47 which can be actuated by means of an actuator and by means of which the supply of the additives can be controlled. Due to their weight, the aggregates 43 fed continuously or intermittently through the lid edge openings move downward along the inner sides 15 'and 13' towards the bottom region 5, some of which remain adhering to the inner sides.
  • the protective layer formed by the added additives protects the furnace walls and the base area against mechanical stress when the vessel is being charged. This is particularly important in the case of a melting unit in which lumpy batch material, such as scrap, is fed in from a batch preheater arranged above the melting unit in free fall, i.e. in the case of a melting unit of the type shown in the figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Pour le traitement métallurgique d'un bain de fusion (1) dans un récipient de fusion et d'affinage métallurgique (3), des additifs coulants (43), en particulier de la chaux, dans un état allant de granuleux à pulvérulent, sont apportés, au moins pendant une partie de la phase de raffinage, à la zone supérieure de la face interne (15') de la paroi du récipient (11), répartis sur la circonférence. Les additifs (43) forment sur la paroi du récipient (11) une couche isolante et protectrice permettant de réduire les pertes d'énergie et de prolonger la durée de vie du récipient (3).
EP90915469A 1989-11-03 1990-10-26 Procede pour l'introduction d'additifs coulants dans un recipient metallurgique et recipient s'y rapportant Ceased EP0452445A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3936715A DE3936715A1 (de) 1989-11-03 1989-11-03 Verfahren zum einbringen von fliessfaehigen zuschlagsstoffen in ein metallurgisches gefaess und gefaess fuer dieses verfahren
DE3936715 1989-11-03

Publications (1)

Publication Number Publication Date
EP0452445A1 true EP0452445A1 (fr) 1991-10-23

Family

ID=6392843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90915469A Ceased EP0452445A1 (fr) 1989-11-03 1990-10-26 Procede pour l'introduction d'additifs coulants dans un recipient metallurgique et recipient s'y rapportant

Country Status (12)

Country Link
US (1) US5201941A (fr)
EP (1) EP0452445A1 (fr)
JP (1) JPH04501140A (fr)
KR (1) KR920701487A (fr)
CN (1) CN1024137C (fr)
AU (1) AU631258B2 (fr)
BR (1) BR9006988A (fr)
CA (1) CA2044615A1 (fr)
DE (1) DE3936715A1 (fr)
HU (1) HU912252D0 (fr)
WO (1) WO1991006683A1 (fr)
ZA (1) ZA908727B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234973C1 (de) * 1992-10-16 1994-06-01 Tech Resources Pty Ltd Verfahren zum Schutz der feuerfesten Ausmauerung im Gasraum von metallurgischen Reaktionsgefäßen
DE4326369A1 (de) * 1993-08-05 1995-02-09 Fuchs Systemtechnik Gmbh Chargiergutvorwärmer
US5397379A (en) * 1993-09-22 1995-03-14 Oglebay Norton Company Process and additive for the ladle refining of steel
LU88807A1 (de) * 1996-08-20 1998-02-24 Wurth Paul Sa Chargiergutvorwaermer
US6179895B1 (en) 1996-12-11 2001-01-30 Performix Technologies, Ltd. Basic tundish flux composition for steelmaking processes
JP2005537388A (ja) * 2002-07-10 2005-12-08 コラス、テクノロジー、ベスローテン、フェンノートシャップ 冶金容器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB843714A (en) * 1957-02-01 1960-08-10 Stora Kopparbbergs Bergslags A Method of protecting the lining of rotary furnaces for treating molten metal
GB1100919A (en) * 1964-05-06 1968-01-24 Enn Vallak Method of and means for cooling a combustion chamber, or a reaction chamber used in smelting reduction processes
DE1508095A1 (de) * 1965-04-23 1969-04-03 Enn Vallak Verfahren und Vorrichtung zum Kuehlen von Verbrennungsraeumen mittels pulverfoermigen Materials
FR1545464A (fr) * 1967-11-28 1968-11-08 Exxon Research Engineering Co Procédé de fusion de matières ferreuses au four à arc électrique
GB1219060A (en) * 1969-12-19 1971-01-13 Quigley Co Method of prolonging the life of the cone section of the refractory lining of a kaldo basic oxygen furnace
AR205514A1 (es) * 1971-03-30 1976-05-14 Creusot Loire Procedimiento de proteccion de una pared refractaria en servicio
LU74452A1 (fr) * 1976-02-27 1977-09-13
US4009870A (en) * 1976-06-22 1977-03-01 Obenchain Richard F Metallurgical shaft furnace
JPS534709A (en) * 1976-07-02 1978-01-17 Nippon Steel Corp Lining refractory protection method of molten metal vacuum degas vessel
CA1143947A (fr) * 1979-02-07 1983-04-05 Jerry V. Spruell Methode de prolongation de la duree utile du chemisage refractaire des fours a l'oxygene basique
MX154705A (es) * 1979-12-21 1987-12-02 Korf Ikosa Ind Aco Horno mejorado para fundir y afinar chatarras,hierro esponja,hierro crudo y hierro liquido para la produccion de acero
JPS5740430A (en) * 1980-08-25 1982-03-06 Sumitomo Chem Co Ltd Production of phenol
FR2525633A1 (fr) * 1982-04-22 1983-10-28 Siderurgie Fse Inst Rech Procede pour ameliorer la duree de vie d'elements refractaires permeables loges dans le fond des recipients metallurgiques d'affinage, notamment des convertisseurs d'acierie a soufflage d'oxygene par le haut
DE3305611C1 (de) * 1983-02-18 1984-08-16 Krupp Stahl Ag, 4630 Bochum Schrottchargierkorb für Elektro-Lichtbogenöfen
AT385771B (de) * 1986-06-16 1988-05-10 Voest Alpine Ag Verfahren zum ueberziehen der feuerfesten auskleidung eines metallurgischen schmelzofens mit einem hitzebestaendigen material
US4936908A (en) * 1987-09-25 1990-06-26 Nkk Corporation Method for smelting and reducing iron ores

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9106683A1 *

Also Published As

Publication number Publication date
HU912252D0 (en) 1991-12-30
CN1024137C (zh) 1994-04-06
US5201941A (en) 1993-04-13
JPH04501140A (ja) 1992-02-27
KR920701487A (ko) 1992-08-11
AU6541190A (en) 1991-05-31
DE3936715A1 (de) 1991-05-08
ZA908727B (en) 1991-08-28
BR9006988A (pt) 1991-12-24
WO1991006683A1 (fr) 1991-05-16
CN1052333A (zh) 1991-06-19
CA2044615A1 (fr) 1991-05-04
AU631258B2 (en) 1992-11-19

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19910622

AK Designated contracting states

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Effective date: 19930413

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Effective date: 19940408