EP0363651A1 - Brique pour lavage au gaz - Google Patents

Brique pour lavage au gaz Download PDF

Info

Publication number
EP0363651A1
EP0363651A1 EP89116620A EP89116620A EP0363651A1 EP 0363651 A1 EP0363651 A1 EP 0363651A1 EP 89116620 A EP89116620 A EP 89116620A EP 89116620 A EP89116620 A EP 89116620A EP 0363651 A1 EP0363651 A1 EP 0363651A1
Authority
EP
European Patent Office
Prior art keywords
gas
purging plug
gas purging
distribution space
plug according
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
EP89116620A
Other languages
German (de)
English (en)
Other versions
EP0363651B1 (fr
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/fr
Application granted granted Critical
Publication of EP0363651B1 publication Critical patent/EP0363651B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 purging plug with a gas-impermeable, refractory outer part, a gas-permeable refractory inner part arranged therein and a gas distribution space.
  • gas purging stones are used in molten metal vessels.
  • the gas distribution space is closed by a base plate which is permanently connected to the gas purging block and on which a gas connecting piece is formed.
  • the base plate must be kept a certain distance from the permeable inner part of the gas purging plug.
  • Such a gas purging plug comprises various metal parts and is complex. When replacing the gas purging plug, the bottom plate and the gas connecting piece are also replaced as integral parts thereof, without these parts being reusable in practice. This seems uneconomical.
  • the object of the invention is to simplify a gas purging plug of the type mentioned.
  • the above object is achieved in the case of a gas purging plug of the type mentioned at the outset in that the gas distribution space has a free opening on an end face of the outer part and in that a sealing surface is formed on the outer part, which extends around the opening and on which there is a gas connection Locking part can be struck.
  • a base plate closing the gas distribution space nor a gas connecting piece is therefore provided on the gas purging plug itself. Only in operation is a closure part pressed onto the end face, which has a gas connection piece and which then sits tightly on the sealing surface of the gas flushing plug. When the gas purging plug is replaced, it is removed from the closure part and replaced. The closure part and the gas connection piece are therefore reusable.
  • the construction of the gas purging plug described is considerably simplified, since no base plate with a gas connecting piece has to be welded to it.
  • the transport and storage options of the gas purging plug are simplified, since no gas connection piece protrudes from it. Weight reduction is also achieved because the gas purging plug has fewer metallic parts than in the prior art.
  • 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 using the gas purging plug 1 according to FIG. 2, it is inserted into a perforated block 8 of 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, which is seated on the sealing surface 7 of the gas purging plug 1.
  • the closure part 11 is fastened to a cross member 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 connection stub 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 removal of 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 described gas purging plug 1 can also be fastened in the floor 9 with devices other than those described.
  • the closing part 11, which closes off the gas distribution space 4 and connects to the gas supply, can in any case be easily removed 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 substantially cylindrical projection 13 of the closure part 11 has a bevel 25 on the outside.
  • the closure member 11 If the closure member 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 bears sealingly on the inner wall 14 of the gas distribution space 4 and on 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, on 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)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Glass Compositions (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Percussion Or Vibration Massage (AREA)
EP89116620A 1988-10-01 1989-09-08 Brique pour lavage au gaz Expired - Lifetime EP0363651B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=6364231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116620A Expired - Lifetime EP0363651B1 (fr) 1988-10-01 1989-09-08 Brique pour lavage au gaz

Country Status (10)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458040A3 (en) * 1990-04-24 1991-12-11 Didier-Werke Ag Gas purging assembly with a perforated brick and a gas purging brick
EP0521371A1 (fr) * 1991-06-28 1993-01-07 Veitsch-Radex Aktiengesellschaft für feuerfeste Erzeugnisse Brique pour lavage au gaz
EP0609562A1 (fr) * 1993-02-04 1994-08-10 BECK u. KALTHEUNER, FEUERFESTE ERZEUGNISSE GmbH & CO. KG Brique céramique de barbotage à gaz pour le traitement de l'acier en poche
EP1078702A1 (fr) * 1999-08-27 2001-02-28 MANNESMANN Aktiengesellschaft Dispositif de rinçage par les gaz pour un réservoir métallurgique

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022949C1 (fr) * 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
DE4136552A1 (de) * 1991-11-06 1993-05-13 Kortec Ag Dueseneinrichtung zum einleiten von medien in eine schmelze und verfahren zum betrieb dieser dueseneinrichtung
CN1059324C (zh) * 1994-06-03 2000-12-13 赵学瑞 筋骨复原膏
DE19954918C2 (de) * 1999-11-16 2001-09-20 Veitsch Radex Gmbh Wien Feuerfester keramischer Gasspülstein
EP1243361A1 (fr) * 2001-03-19 2002-09-25 Vesuvius Crucible Company Dispositif pour introduire un gaz dans un métal liquide
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
EP2703761B1 (fr) 2012-08-27 2016-08-17 Refractory Intellectual Property GmbH & Co. KG Élément de lavage de gaz avec conduite d'alimentation en gaz correspondante
PL2711107T3 (pl) * 2012-09-20 2015-02-27 Refractory Intellectual Property Gmbh & Co Kg Ogniotrwała ceramiczna kształtka do przedmuchiwania gazem i sposób wytwarzania takiej kształtki do przedmuchiwania gazem
EP2893992B1 (fr) * 2014-01-09 2015-12-30 Refractory Intellectual Property GmbH & Co. KG Élément de rinçage de gaz et élément de raccord de gaz associé
KR20250114351A (ko) 2022-11-25 2025-07-29 베수비우스 그룹, 에스. 에이. 야금 용기에서 가스 퍼지 플러그의 용이한 설치를 위한 가스 퍼지 플러그 및 시스템

Citations (3)

* 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
GB1421793A (en) * 1973-06-20 1976-01-21 Electricity Council Injectors for injecting gas into molten metal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541604A (en) * 1967-02-01 1970-11-17 Nippon Steel Corp Gas insufflating means for a molten metal refining container
SE328967B (fr) * 1969-02-20 1970-09-28 Asea Ab
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 (fr) * 1983-08-20 1985-03-14 Brohltal-Deumag Ag Für Feuerfeste Erzeugnisse; Appareil d'extraction pour une pierre refractaire d'injection de gaz
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

Patent Citations (3)

* 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
GB1421793A (en) * 1973-06-20 1976-01-21 Electricity Council Injectors for injecting gas into molten metal

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458040A3 (en) * 1990-04-24 1991-12-11 Didier-Werke Ag Gas purging assembly with a perforated brick and a gas purging brick
EP0521371A1 (fr) * 1991-06-28 1993-01-07 Veitsch-Radex Aktiengesellschaft für feuerfeste Erzeugnisse Brique pour lavage au gaz
EP0609562A1 (fr) * 1993-02-04 1994-08-10 BECK u. KALTHEUNER, FEUERFESTE ERZEUGNISSE GmbH & CO. KG Brique céramique de barbotage à gaz pour le traitement de l'acier en poche
EP1078702A1 (fr) * 1999-08-27 2001-02-28 MANNESMANN Aktiengesellschaft Dispositif de rinçage par les gaz pour un réservoir métallurgique
DE19941639A1 (de) * 1999-08-27 2001-03-08 Mannesmann Ag Gasspüleinrichtung für ein metallurgisches Gefäß
DE19941639C2 (de) * 1999-08-27 2001-09-13 Mannesmann Ag Gasspüleinrichtung für ein metallurgisches Gefäß

Also Published As

Publication number Publication date
ES2095834T3 (es) 1997-03-01
CA1337499C (fr) 1995-11-07
DE3833502C2 (fr) 1990-10-04
US4978108A (en) 1990-12-18
DE3833502A1 (de) 1990-04-05
DE58909750D1 (de) 1997-01-02
KR900006535A (ko) 1990-05-08
EP0363651B1 (fr) 1996-11-20
CN1019026B (zh) 1992-11-11
KR0138105B1 (ko) 1998-07-15
CN1041616A (zh) 1990-04-25
ZA896796B (en) 1990-06-27
ATE145433T1 (de) 1996-12-15
JPH02118012A (ja) 1990-05-02

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