EP0469268B2 - Verbindung zwischen dem Auslauf eines metallurgischen Gefässes und einem Schutzrohr oder Eintauchausguss - Google Patents

Verbindung zwischen dem Auslauf eines metallurgischen Gefässes und einem Schutzrohr oder Eintauchausguss Download PDF

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Publication number
EP0469268B2
EP0469268B2 EP91109446A EP91109446A EP0469268B2 EP 0469268 B2 EP0469268 B2 EP 0469268B2 EP 91109446 A EP91109446 A EP 91109446A EP 91109446 A EP91109446 A EP 91109446A EP 0469268 B2 EP0469268 B2 EP 0469268B2
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EP
European Patent Office
Prior art keywords
connection
protective tube
immersion nozzle
outlet
annular space
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
EP91109446A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0469268A3 (en
EP0469268B1 (de
EP0469268A2 (de
Inventor
Ernst Lührsen
Ulrich Schneider
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
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Application filed by Didier Werke AG filed Critical Didier Werke AG
Publication of EP0469268A2 publication Critical patent/EP0469268A2/de
Publication of EP0469268A3 publication Critical patent/EP0469268A3/de
Application granted granted Critical
Publication of EP0469268B1 publication Critical patent/EP0469268B1/de
Publication of EP0469268B2 publication Critical patent/EP0469268B2/de
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50Pouring-nozzles
    • B22D41/502Connection arrangements; Sealing means therefor

Definitions

  • the invention relates to a connection between the outlet stone a metallurgical vessel and an adjoining one Protection tube or immersion spout.
  • From DE-B-3 226 047 (corresponding to US Re-33 036) is a tapered fit between a pouring stone and one Immersion spout provided. Although there can also be a Inert gas in a provided in the area of the conical seat Annulus are introduced. The desired gas tightness is however not guaranteed. Even smaller particles in the Fitting fits significantly affect gas tightness. In addition, the fit means that the protective tube or Immersion spout sticks when removing from the outlet cone and at greater force breaks.
  • Fig. 3 is a connection between the outlet stone metallurgical vessel and a protective tube excluding it known or immersion spout, which with a a conical seat provided with a seal connected to each other are, in which over an annulus and open Grooves a protective gas to equalize pressure in the pouring tube to be introduced. With reasonable amounts of shielding gas however, this is not possible, so that a seal against Air access to the jet is not reached.
  • DE-B-3 620 413 is used as a joint material for pouring closures and gas inlets on metallurgical vessels Expanded fiber mushroom proposed.
  • the object of the invention is to connect the the type mentioned at the beginning to seal against air ingress into the protective tube or immersion spout simplify and improve as well as tightness monitoring to reach. According to the invention, this task is for a connection of the type mentioned at the beginning with the characteristics as of claim 1 solved. (Continued with column 1, line 35 of EP 0 469 268 B1)
  • the sealing rings ensure the necessary tightness of the Fit even when between the spout and the protective tube or immersion spout.
  • In cooperation with the prevailing gas pressure of the inert gas in the annulus Seals ensure that the leaking molten metal is not included Air comes into contact and therefore does not oxidize.
  • the gas pressure in the annulus is determined by the Display device monitors. If either the upper sealing ring or if the lower sealing ring should leak, one is carried out Display. As long as only one of the sealing rings leaks, there is not yet the danger that the molten metal with air in Touch comes. An advertisement is therefore made before one Condition in which both sealing rings are leaking and therefore Atmospheric oxygen from the leaking melt through the seat is sucked in.
  • the compressible sealing rings preferably consist of ceramic fiber material. They are particularly by the Spacers bridging the annular space are connected to one another. This makes it possible to assemble both rings as a structural unit. This can be done before attaching the protective tube or Immersion spout on the outlet on this or on the protective tube or the immersion nozzle. In the design of the Invention forms a one-piece ring member both rings and if necessary, the spacers.
  • the two sealing rings can be attached to the protective tube or immersion spout on the outlet on this or on the Protective tube or the immersion spout must be attached.
  • the lower sealing ring is preferably located at a step of the Protective tube or immersion spout. It is the one correct position of the sealing rings during assembly to reach.
  • the sealing rings have a certain one Gas permeability. Because of the prevailing in the annulus However, excess gas pressure of the inert gas does not lead to the fact that Air is sucked in by the melt. In the design of the Invention arises from a different gas permeability a directional gas flow for the compressible sealing rings, preferably in the protective tube or immersion nozzle.
  • the Sealing rings (5, 6) are compressible and consist of ceramic Fiber material.
  • a radial channel (9) opens into the annular space (7) Immersion spout (3).
  • the two sealing rings (5, 6) are over spacers (12) connected with each other. These extend through the annulus (7) without locking it off.
  • the two sealing rings (5, 6) and the spacers (12) are made as a one-piece component from the ceramic fiber material.
  • the lower sealing ring (6) sits on a step formed in the immersion nozzle (3) (13).
  • the assembly of the immersion nozzle (3) on the outlet stone (2) is done approximately as follows: The assembly consisting of the upper and lower sealing ring (5, 6) and the spacers (12) is pushed into the immersion nozzle (3) until the lower sealing ring (6) stands on the step (13). The spacer webs (12) then lie in the area of the step (8) widening the annular space (7).
  • the immersion nozzle (3) is placed on the outlet stone (2) pushed and in this position in a manner known per se attached.
  • the fiber material of the sealing rings (5, 6) is thereby compressed.
  • the gas line (10) can be connected.
  • the annular space (7) is operated with inert gas acted upon.
  • the gas permeability of the Sealing rings (5, 6) the pressing of the sealing rings (5, 6) and the one prevailing when pouring in the immersion nozzle (3)
  • Negative pressure arises on the display device (11) formed by a pressure gauge is a certain overpressure.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Cable Accessories (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Sealing Devices (AREA)
  • Discharge Heating (AREA)
  • Measuring Fluid Pressure (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
EP91109446A 1990-08-02 1991-06-08 Verbindung zwischen dem Auslauf eines metallurgischen Gefässes und einem Schutzrohr oder Eintauchausguss Expired - Lifetime EP0469268B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4024520 1990-08-02
DE4024520A DE4024520A1 (de) 1990-08-02 1990-08-02 Verbindung zwischen dem auslauf eines metallurgischen gefaesses und einem schutzrohr oder eintauchausguss

Publications (4)

Publication Number Publication Date
EP0469268A2 EP0469268A2 (de) 1992-02-05
EP0469268A3 EP0469268A3 (en) 1992-12-09
EP0469268B1 EP0469268B1 (de) 1995-04-26
EP0469268B2 true EP0469268B2 (de) 2000-05-31

Family

ID=6411495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109446A Expired - Lifetime EP0469268B2 (de) 1990-08-02 1991-06-08 Verbindung zwischen dem Auslauf eines metallurgischen Gefässes und einem Schutzrohr oder Eintauchausguss

Country Status (13)

Country Link
US (1) US5173242A (zh)
EP (1) EP0469268B2 (zh)
JP (1) JP2961458B2 (zh)
KR (1) KR970001554B1 (zh)
CN (1) CN1025826C (zh)
AT (1) ATE121651T1 (zh)
BR (1) BR9103303A (zh)
CA (1) CA2047021C (zh)
DE (2) DE4024520A1 (zh)
ES (1) ES2072482T5 (zh)
FI (1) FI94846C (zh)
RU (1) RU2013732C1 (zh)
ZA (1) ZA914390B (zh)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320723A1 (de) * 1993-06-23 1995-01-05 Didier Werke Ag Eintauchausguß
DE19523715C1 (de) * 1995-06-22 1996-10-10 Mannesmann Ag Horizontal-Stranggießanlage mit einem beheizbaren Mehrkammerofen mit ofenabhängiger Kokille
US6059318A (en) * 1996-04-30 2000-05-09 E. I. Du Pont De Nemours And Company Lateral entry remotely operated coupling system
FR2763012A1 (fr) * 1997-05-07 1998-11-13 Vesuvius France Sa Piece refractaire pour la coulee d'acier liquide comportant un joint d'etancheite compressible
GB9914170D0 (en) * 1999-06-18 1999-08-18 Foseco Int Continuous casting of molten metal
AR028542A1 (es) * 2000-04-28 2003-05-14 Vesuvius Crucible Co Componente refractario y conjunto con obturacion hermetica para inyeccion de un gas inerte
US6660220B2 (en) 2001-12-21 2003-12-09 Isg Technologies Inc. Apparatus and method for delivering an inert gas to prevent plugging in a slide gate
KR20040043374A (ko) * 2002-11-18 2004-05-24 주식회사 포스코 연속주조의 노즐 결합부 실링장치
DE102004057381A1 (de) * 2004-11-26 2006-06-01 Heraeus Electro-Nite International N.V. Verfahren zur Regelung des Durchflusses sowie Bodenausguss für ein metallurgisches Gefäß
DE602005009826D1 (de) * 2005-08-27 2008-10-30 Refractory Intellectual Prop Feuerfeste Giessdüse mit porösem Einsatz
JP5047854B2 (ja) * 2008-03-27 2012-10-10 黒崎播磨株式会社 連続鋳造用浸漬ノズル
EP2792433A1 (en) 2013-04-16 2014-10-22 Refractory Intellectual Property GmbH & Co. KG A sealing system preferably in a slide gate on the spout of a metallurgical vessel and a spout casing
EP2878861A1 (en) * 2013-11-28 2015-06-03 Refractory Intellectual Property GmbH & Co. KG A gasket arrangement between two refractory sleeves on the spout of a metallurgical vessel
CN104117667B (zh) * 2014-08-01 2016-01-20 莱芜钢铁集团有限公司 连铸中间包水口用密封吹氩保护的装置及方法
CN104358879A (zh) * 2014-11-04 2015-02-18 西宁特殊钢股份有限公司 流钢砖密封垫圈
CN108127110B (zh) * 2017-02-28 2023-06-09 安徽工业大学 一种可保护出钢的钢水转运装置及可保护出钢的电炉炼钢系统
ES2930764T3 (es) * 2017-09-28 2022-12-21 Krosakiharima Corp Estructura de casquillo para agujero de introducción de gas
UA126958U (uk) * 2018-02-12 2018-07-10 Товариство З Обмеженою Відповідальністю "Шеффілд Рефракторіс Україна" Пристрій для захисту металу від взаємодії з навколишньою атмосферою

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651998A (en) * 1970-09-23 1972-03-28 Metallurg Exoproducts Corp Nozzle for a pouring ladle
NL185612C (nl) * 1981-06-05 1990-06-01 Hoogovens Groep Bv Inrichting voor het bevestigen van een dompelpijp.
DE3226047C2 (de) * 1982-07-12 1985-11-28 Didier-Werke Ag, 6200 Wiesbaden Verbindung zwischen dem Auslaufkonus des Verschlusses eines Gießgefäßes für Metallschmelze und dem daran anschließenden Schutzrohr
DE3612403A1 (de) * 1986-04-12 1987-10-15 Hoesch Stahl Ag Vorrichtung zum abdichten des bereichs zwischen unterer schieberplatte und langrohranschluss beim verdeckten vergiessen von stahlschmelzen in langrohrtechnik
DE3620413A1 (de) * 1986-06-18 1987-12-23 Didier Werke Ag Feuerfeste fugenwerkstoffe, insbesondere fuer ausgussverschluesse an metallurgischen gefaessen
JPH0688127B2 (ja) * 1988-03-09 1994-11-09 川崎製鉄株式会社 スラグ流出検知方法
DE3838903A1 (de) * 1988-11-17 1990-05-23 Didier Werke Ag Dichtung fuer feuerfeste, metallische schmelze fuehrende bauteile

Also Published As

Publication number Publication date
BR9103303A (pt) 1992-05-26
US5173242A (en) 1992-12-22
EP0469268A3 (en) 1992-12-09
ES2072482T3 (es) 1995-07-16
DE4024520A1 (de) 1992-02-06
FI94846B (fi) 1995-07-31
KR970001554B1 (ko) 1997-02-11
EP0469268B1 (de) 1995-04-26
CA2047021C (en) 2001-10-02
FI913570A (fi) 1992-02-03
EP0469268A2 (de) 1992-02-05
CN1058555A (zh) 1992-02-12
JPH0584566A (ja) 1993-04-06
DE4024520C2 (zh) 1992-09-10
ZA914390B (en) 1992-04-29
ATE121651T1 (de) 1995-05-15
JP2961458B2 (ja) 1999-10-12
FI913570A0 (fi) 1991-07-25
DE59105298D1 (de) 1995-06-01
CA2047021A1 (en) 1992-02-03
RU2013732C1 (ru) 1994-05-30
CN1025826C (zh) 1994-09-07
FI94846C (fi) 1995-11-10
ES2072482T5 (es) 2000-10-16

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