EP0363651B1 - Gasspülstein - Google Patents

Gasspülstein Download PDF

Info

Publication number
EP0363651B1
EP0363651B1 EP89116620A EP89116620A EP0363651B1 EP 0363651 B1 EP0363651 B1 EP 0363651B1 EP 89116620 A EP89116620 A EP 89116620A EP 89116620 A EP89116620 A EP 89116620A EP 0363651 B1 EP0363651 B1 EP 0363651B1
Authority
EP
European Patent Office
Prior art keywords
gas
gas purging
distribution space
installation
gas distribution
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 - Lifetime
Application number
EP89116620A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0363651A1 (de
Inventor
Hans Rothfuss
Raimund Brückner
Peter Keutgen
Josef Seeger
Manfred Winkelmann
Herbert Metzger
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.)
Didier Werke AG
Original Assignee
Didier Werke 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 Didier Werke AG filed Critical Didier Werke AG
Publication of EP0363651A1 publication Critical patent/EP0363651A1/de
Application granted granted Critical
Publication of EP0363651B1 publication Critical patent/EP0363651B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor

Definitions

  • the invention relates to a gas flushing arrangement on a molten metal vessel according to the preamble of claim 1.
  • the gas purging plug is held in a holder ring by means of a screw ring.
  • a closure part which has a threaded connection, is fixed on the end face with a seal by means of a union nut on the mounting ring.
  • this has the disadvantage that to remove a worn-out gas flushing plug, you first have to unscrew the union nut for the closure part and then the screw ring. After inserting the new gas purging plug, both screw elements are again to be attached to the closure part.
  • the large number of interacting parts makes the arrangement and assembly complex and favors leaks.
  • the closure part is supported in each case by a flexible sealing element on the end face of the gas purging plug which is free of gas distribution space. Loosening of the gas purging plug during operation, which is not ruled out, can possibly lead to the escape of metal melt through joints between the gas purging plug and the vessel bottom lining. This does not meet the requirement for a firm, reliable mounting of the gas purging plug on the metal melting vessel.
  • the object of the invention is to improve a gas purging arrangement of the type mentioned with regard to assembly and functional reliability.
  • a gas purging plug 1 consists of a gas-impermeable, conical, refractory outer part 2 and a gas-permeable, refractory inner part 3.
  • the gas impermeability of the outer part 2 is achieved by means of dense, refractory material, e.g. chemically or hydraulically setting, ceramic masses with closed pores.
  • the gas permeability of the inner part 3 is achieved by known, porous building blocks, which the person skilled in the art knows, for example, under the terms permeable stones, capillary rinsers, labyrinth rinsers or window washers.
  • a gas distribution space 4 is formed in the outer part 2.
  • the gas distribution space 4 is cylindrical and concentric in the conical gas purging plug 1.
  • the gas distribution space 4 is open to the inner part 3 and has an opening 6 on the end face 5 of the outer part 2, which extends over the entire cross section of the gas distribution space 4.
  • a sealing surface 7 (see FIG. 1) is formed on the end face 5 and extends in a ring around the opening 6. At the gas purging plug 1, the gas distribution space 4 is therefore open.
  • the gas purging plug 1 has no gas connection piece.
  • the gas purging plug 1 When the gas purging plug 1 according to FIG. 2 is used, it is inserted into a perforated block 8 in a base 9 of a molten metal vessel.
  • the gas purging plug 1 is held on its periphery by a centering ring 10.
  • a closure part 11 On the front side 5 of the gas purging plug 1, a closure part 11 is placed; in such a way that it strikes the plane of the opening 6 (see FIG. 2) on the outer part 2. This is provided with a gas connection piece 12.
  • the closure part 11 engages with a protrusion 13 in the gas distribution space 4.
  • the inner wall 14 of the gas distribution space 4 forms a centering guide surface for the protrusion 13.
  • a sealing ring 15 is arranged on the closure part 11 and is seated on the sealing surface 7 of the gas purging plug 1.
  • the closure part 11 is fastened to a crossmember 16 which is attached to pins 17 arranged on the bottom 9.
  • pins 17 arranged on the bottom 9.
  • a wedge 19 is driven into a transverse slot 18 and presses the closure part 11 and thus the sealing ring 15 firmly against the sealing surface 7 via the cross member 16.
  • gas flows through the gas connecting piece 12 into the gas distribution space 4 and through the inner part 3.
  • the cross member 16 and thus the closure part 11 are lifted off the end face 5 by means of handles 20. After removing the worn gas purging plug 1, a new gas purging plug 1 can be placed on the closure part 11 and inserted into the perforated block 8.
  • the gas purging plug 1 When used in accordance with FIG. 3, the gas purging plug 1 is fastened to the closure part 11 by means of screws 21. The sealing ring 15 is thus pressed against the sealing surface 7.
  • the closure part 11 is arranged on a swivel device 22.
  • the swivel device 22 is actuated to replace the gas purging plug 1.
  • the gas purging plug 1 is pulled out of the perforated block 8. After loosening the screws 21, the gas purging plug 1 can be replaced.
  • the gas purging plug 1 described can also be fastened in the floor 9 with devices other than those described.
  • the closing part 11, which closes the gas distribution space 4 and adjoins the gas supply, is in any case easily removable from the gas purging plug 1 and, in contrast to the gas purging plug 1, can be reused.
  • the outer part could also have a sheet metal jacket.
  • the sealing surface 7 is then formed on this.
  • a sleeve 23 is inserted into the gas distribution space 4 of the gas purging plug 1.
  • This consists of a material, for example copper, which is less hard than the material of the closure part 11.
  • the sleeve 23 narrows conically to the inside of the gas distribution space 4 and forms the sealing surface 7 with its inner surface.
  • the sleeve 23 is supported with an edge 24 the end face 5. If the rinsing cone has a sheet metal jacket surrounding it, this sleeve 23 can be firmly connected to the sheet metal jacket.
  • the essentially cylindrical projection 13 of the closure part 11 has a bevel 25 on the outside.
  • the closure part 11 If the closure part 11 is pushed in the direction of arrow A perpendicular to the opening 6 with its projection 13 into the sleeve 23, then the sleeve 23 is pressed so that it lies sealingly against the inner wall 14 of the gas distribution space 4 and against the projection 13. It is favorable in comparison to the exemplary embodiment according to FIG. 4 that the pressure acting on the sealing surface 7 does not have to be applied by the force which holds the gas purging plug 1 and the closure part 11 together perpendicular to the plane of the opening 6 during operation. This improves the sealing effect without a particularly high force being required to maintain the stop of the closure part 11 on the gas purging plug 1.
  • the sleeve 23 is part of the gas purging plug 1 and is replaced with this.
  • the gas purging plug 1 need not have a sheet metal jacket. However, it can at least on its circumference, in the area where the centering ring 10 rests, with a sheet metal jacket be provided, which can extend to the top of the cone.
  • the power transmission from the centering ring 10 to the gas purging plug 1 is improved in such a way that the outer part 2 is less prone to breakage.
  • the partial sheet metal jacket can be designed so that it takes over the holding function of the centering ring 10, so that the centering ring 10 can be dispensed with as a separate component. It is also possible to connect this partial sheet metal jacket directly to the closure part 11. This can be done, for example, by a bayonet-type closure. The screws reaching into the gas purging stones 1 can then be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Glass Compositions (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Furnace Charging Or Discharging (AREA)
EP89116620A 1988-10-01 1989-09-08 Gasspülstein Expired - Lifetime EP0363651B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3833502A DE3833502A1 (de) 1988-10-01 1988-10-01 Gasspuelstein
DE3833502 1988-10-01

Publications (2)

Publication Number Publication Date
EP0363651A1 EP0363651A1 (de) 1990-04-18
EP0363651B1 true EP0363651B1 (de) 1996-11-20

Family

ID=6364231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116620A Expired - Lifetime EP0363651B1 (de) 1988-10-01 1989-09-08 Gasspülstein

Country Status (10)

Country Link
US (1) US4978108A (ko)
EP (1) EP0363651B1 (ko)
JP (1) JPH02118012A (ko)
KR (1) KR0138105B1 (ko)
CN (1) CN1019026B (ko)
AT (1) ATE145433T1 (ko)
CA (1) CA1337499C (ko)
DE (2) DE3833502A1 (ko)
ES (1) ES2095834T3 (ko)
ZA (1) ZA896796B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2893992A1 (de) 2014-01-09 2015-07-15 Refractory Intellectual Property GmbH & Co. KG Gasspül-Element und zugehöriges Gasanschluss-Element

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012952C2 (de) * 1990-04-24 1995-03-23 Didier Werke Ag Gasspüleinrichtung an einem metallurgischen Gefäß
DE4022949C1 (ko) * 1990-07-19 1991-07-11 Radex-Heraklith Industriebeteiligungs Ag, Wien, At
DE4025956A1 (de) * 1990-08-16 1992-02-20 Didier Werke Ag Feuerfeste fuellung eines ringspaltes bei einem metallurgischen gefaess
EP0502256A3 (en) * 1991-03-06 1992-12-09 Beck U. Kaltheuner, Feuerfeste Erzeugnissegmbh & Co. Kg Gas bubbling device for the treatment of steel in a ladle
DE4121329C2 (de) * 1991-06-28 1995-09-07 Veitsch Radex Ag Gasspülstein
DE4136552A1 (de) * 1991-11-06 1993-05-13 Kortec Ag Dueseneinrichtung zum einleiten von medien in eine schmelze und verfahren zum betrieb dieser dueseneinrichtung
DE9301563U1 (de) * 1993-02-04 1993-03-25 Beck u. Kaltheuner Feuerfeste Erzeugnisse GmbH & Co KG, 5970 Plettenberg Keramischer Spülstein für Stahlbehandlungspfannen
CN1059324C (zh) * 1994-06-03 2000-12-13 赵学瑞 筋骨复原膏
DE19941639C2 (de) * 1999-08-27 2001-09-13 Mannesmann Ag Gasspüleinrichtung für ein metallurgisches Gefäß
DE19954918C2 (de) * 1999-11-16 2001-09-20 Veitsch Radex Gmbh Wien Feuerfester keramischer Gasspülstein
EP1243361A1 (en) * 2001-03-19 2002-09-25 Vesuvius Crucible Company Apparatus for injecting gas into molten metal
DE10259434B3 (de) * 2002-12-19 2004-08-26 Refractory Intellectual Property Gmbh & Co.Kg Gasspüleinrichtung für metallurgische Schmelzgefäße
DE10360827B3 (de) * 2003-12-23 2005-06-09 Refractory Intellectual Property Gmbh & Co. Kg Halteeinrichtung für Spülelemente
JP2011194457A (ja) * 2010-03-23 2011-10-06 Kurosaki Harima Corp ガス吹き込み用プラグの設置構造
PL2703761T3 (pl) * 2012-08-27 2016-12-30 Element do przepłukiwania gazem z należącym do niego przewodem doprowadzającym gaz
EP2711107B1 (en) * 2012-09-20 2014-10-08 Refractory Intellectual Property GmbH & Co. KG Refractory ceramic gas purging plug and a process for manufacturing said gas purging plug
WO2024110602A1 (en) 2022-11-25 2024-05-30 Vesuvius Group, S.A. Gas purge plug and system for easy installation of the gas purge plug in a metallurgical vessel

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1726983U (de) * 1956-05-29 1956-07-26 Aluminiumwerke Nuernberg G M B Vorrichtung zur gaseinfuehrung in metallische schmelzen.
GB1027537A (en) * 1964-03-14 1966-04-27 British Cast Iron Res Ass Improvements in ladles for treatment of molten metals
US3541604A (en) * 1967-02-01 1970-11-17 Nippon Steel Corp Gas insufflating means for a molten metal refining container
SE328967B (ko) * 1969-02-20 1970-09-28 Asea Ab
GB1421793A (en) * 1973-06-20 1976-01-21 Electricity Council Injectors for injecting gas into molten metal
JPS5931702U (ja) * 1982-08-24 1984-02-28 市光工業株式会社 車輌用補助灯
AT376455B (de) * 1982-10-06 1984-11-26 Oesterr Amerikan Magnesit Metallurgischer ofen oder metallurgisches gefaess
WO1985001068A1 (en) * 1983-08-20 1985-03-14 Brohltal-Deumag Ag Für Feuerfeste Erzeugnisse; Extractor for a gas blow brick
AT383617B (de) * 1984-09-18 1987-07-27 Oesterr Amerikan Magnesit Gasspuelstein fuer metallurgische oefen und gefaesse
DE3538498A1 (de) * 1985-10-30 1987-05-07 Didier Werke Ag Einduesvorrichtung fuer metallurgische gefaesse
GB8703717D0 (en) * 1987-02-18 1987-03-25 Injectall Ltd Injecting gas into metal melts
DE3716920A1 (de) * 1987-05-20 1988-12-08 Steuler Industriewerke Gmbh Gasspuelsystem mit gasdurchbruchssicherung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2893992A1 (de) 2014-01-09 2015-07-15 Refractory Intellectual Property GmbH & Co. KG Gasspül-Element und zugehöriges Gasanschluss-Element

Also Published As

Publication number Publication date
ES2095834T3 (es) 1997-03-01
CN1041616A (zh) 1990-04-25
DE58909750D1 (de) 1997-01-02
KR0138105B1 (ko) 1998-07-15
DE3833502C2 (ko) 1990-10-04
CN1019026B (zh) 1992-11-11
JPH02118012A (ja) 1990-05-02
CA1337499C (en) 1995-11-07
US4978108A (en) 1990-12-18
ATE145433T1 (de) 1996-12-15
DE3833502A1 (de) 1990-04-05
KR900006535A (ko) 1990-05-08
ZA896796B (en) 1990-06-27
EP0363651A1 (de) 1990-04-18

Similar Documents

Publication Publication Date Title
EP0363651B1 (de) Gasspülstein
DE3833504C2 (ko)
EP0070799B1 (de) Gaseinspritzdüse für Wirbelreaktortank
EP0729797B1 (de) Vorrichtung und Verfahren zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen
DE4005746C2 (ko)
DE3634448C2 (ko)
DE3433123C2 (de) Blasstein für metallurgische Pfannen und Verfahren zu seinem Einfügen in die Zustellung
EP0544997B1 (de) Einrichtung zum Halten eines Stopfens und Stopfen
EP0458040B1 (de) Gasspüleinrichtung sowie Lochstein und Gasspülstein für diese
EP0169290B1 (de) Vorrichtung für den Einsatz in der Entgasung von geschmolzenem Metall
EP0364724A1 (de) Gasspüleinrichtung
EP0920361A1 (de) Feuerfeste platte sowie eine spannvorrichtung für einen schiebeverschluss am ausguss eines metallschmelze enthaltenden behälters
EP0858515B1 (de) Wechselvorrichtung für eine blaslanze
DE3840161A1 (de) Vorrichtung zum oeffnen eines einsatzablaufs einer schieberventileinrichtung sowie verfahren zum oeffnen einer derartigen einrichtung
EP0285686B1 (de) Saugrohr für Vakuum-Druckgiessmaschine
AT526082B1 (de) Schmelzetransportvorrichtung
DE2921722C2 (de) Schleusenrohr für anstückelbare Lichtbogenelektroden bei vakuummetallurgischen Anlagen
EP0358115A2 (de) Zweigeteilter Endstein
EP0502256A2 (de) Spüleinrichtung für Stahlbehandlungspfannen
DE3805276C2 (de) Filteranordnung für radioaktive Stoffe
EP1210982A1 (de) Drehantrieb für ein hydraulisches Werkzeug
EP0359052A1 (de) Gasspülstein-Einrichtung für metalurrgische Schmelzgefässe.
EP0730038A1 (de) Kupplungsvorrichtung zum Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen
EP0292670A2 (de) Feuerfester keramischer Formkörper
DE3904356A1 (de) Gasspueleinrichtung

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19890927

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19920220

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19961120

REF Corresponds to:

Ref document number: 145433

Country of ref document: AT

Date of ref document: 19961215

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

REF Corresponds to:

Ref document number: 58909750

Country of ref document: DE

Date of ref document: 19970102

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961210

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2095834

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970908

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970909

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970909

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

26N No opposition filed
BERE Be: lapsed

Owner name: DIDIER-WERKE A.G.

Effective date: 19970930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980603

EUG Se: european patent has lapsed

Ref document number: 89116620.9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19980824

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980827

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000401

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000401

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19981013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050908