EP0471245B1 - Feuerfeste Füllung eines Ringspaltes bei einem metallurgischen Gefäss - Google Patents

Feuerfeste Füllung eines Ringspaltes bei einem metallurgischen Gefäss Download PDF

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Publication number
EP0471245B1
EP0471245B1 EP91112934A EP91112934A EP0471245B1 EP 0471245 B1 EP0471245 B1 EP 0471245B1 EP 91112934 A EP91112934 A EP 91112934A EP 91112934 A EP91112934 A EP 91112934A EP 0471245 B1 EP0471245 B1 EP 0471245B1
Authority
EP
European Patent Office
Prior art keywords
annular gap
layer
filling
opening
refractory
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
EP91112934A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0471245A1 (de
Inventor
Raimund Brückner
Hans Rothfuss
Manfred Berndt
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 EP0471245A1 publication Critical patent/EP0471245A1/de
Application granted granted Critical
Publication of EP0471245B1 publication Critical patent/EP0471245B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0038—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising shakers
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/161—Introducing a fluid jet or current into the charge through a porous element

Definitions

  • the invention relates to a refractory filling of an annular gap which is provided between a molded part, in particular a gas purging plug, installed in an opening in a refractory lining of a metallurgical vessel, and the lining.
  • Such a refractory filling is known from GB-A-2 115 539.
  • the annular gap between a refractory lining of a metallurgical vessel and a gas purging plug to be inserted into it is mortared in order to ensure the necessary tight fit of the gas purging plug in the refractory lining, in particular in a perforated brick provided on it.
  • This mortaring is a complex, manual process. On the one hand, it must take place under spatially and thermally difficult conditions. On the other hand, the annular gap must be sealed all around with certainty, otherwise leaks occur during operation, which can lead to the melt escaping from the vessel.
  • DE-C-31 05 531 describes a process for the production of refractory fiber masses and their use as expansion joint filling material, in particular between the stones of a rotary kiln.
  • it is proposed to pack the mass between plastic foils and to insert it as a plastic layer with the foils enveloping it as an intermediate layer when lining the furnace.
  • This can be an endless role of the plastic wrapped between plastic films Act layer of mass, but it can also act prefabricated and dimensionally defined individual packs of the plastic mass packed in between the plastic films or possibly welded therein in layer form.
  • the desired lengths can be cut from the roll. All of these exemplary embodiments can only be a flat, that is to say non-annular, filling, the dimensions of which may be fixed but not adapted to the shape and volume of the expansion joint to be filled from the outset.
  • the deformation of the built-in layer in the shape of the annular gap also ensures that the filling can be easily manufactured or installed by being fixed in the opening or on the molded part either before the molded part is inserted. As a result, the filling automatically comes into the desired position filling the annular gap when the molded part is inserted, without the need for an additional operation.
  • the filling can also serve to fasten the molded part in the opening.
  • the gas purging plug is a gas purging cone and accordingly the annular gap has a conical shape, then the built-in layer is preformed in accordance with the conical ring shape of the annular gap.
  • the built-in layer expands all around, which creates the necessary seal.
  • Raw materials with high thermal expansion such as e.g. MgO used, or raw materials when they react with each other there is sufficient elongation, such as e.g. is the case with spinel formation. In any case, the mass must not shrink again when exposed to temperature.
  • the casing consists of an organic material, such as paper or plastic, or of a metallic foil.
  • the casing is burnt or sintered so that it does not impair the desired tightness of the annular gap.
  • the built-in layer can also be removed particularly easily from the perforated brick after the gas flushing plug has worn out. This is obviously achieved because of the shell forming a separating layer, but without adversely affecting the connection strength during operation.
  • the built-in layer and the gas purging plug form a prefabricated structural unit which can be inserted prefabricated into the opening of the vessel lining. The assembly can then be transported to the installation site of the metallurgical vessel and inserted into its opening.
  • the structural unit, consisting of the built-in layer and the gas purging plug can also be packaged in a common, combustible wrapper, comprising the built-in layer and the gas purging plug.
  • the opening (4) is provided for the use of a frustoconical gas purge cone (6). This is shown in dashed lines in Figure 1. When the gas purging cone (6) is inserted into the opening (4), a conical annular gap (7) results which must be filled out.
  • the mass (9) of the built-in layer (8) is enclosed in a casing (10).
  • the casing (10) consists, for example, of paper, a plastic film or a metallic film.
  • the casing (10) is in any case designed in such a way that when the gas purging cone (6) is pushed into the opening (4) it does not impede the complete filling of the annular gap (7) then created by the mass (9).
  • the envelope (10) can optionally be provided with corresponding predetermined breaking points, in particular along a predetermined tear line at its front edges (11 or 12).
  • the installation is done as follows:
  • the installation layer (8) is placed on the gas purging cone (6). This can take place after the gas purge cone (6) has been produced before it is brought to the vessel (1).
  • the gas purge cone (6) and the installation layer (8) form a structural unit. This can be enclosed by an envelope, not shown, made of paper or plastic or metal foil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
EP91112934A 1990-08-16 1991-08-01 Feuerfeste Füllung eines Ringspaltes bei einem metallurgischen Gefäss Expired - Lifetime EP0471245B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4025956 1990-08-16
DE4025956A DE4025956A1 (de) 1990-08-16 1990-08-16 Feuerfeste fuellung eines ringspaltes bei einem metallurgischen gefaess

Publications (2)

Publication Number Publication Date
EP0471245A1 EP0471245A1 (de) 1992-02-19
EP0471245B1 true EP0471245B1 (de) 1996-05-22

Family

ID=6412357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112934A Expired - Lifetime EP0471245B1 (de) 1990-08-16 1991-08-01 Feuerfeste Füllung eines Ringspaltes bei einem metallurgischen Gefäss

Country Status (5)

Country Link
US (1) US5249811A (enrdf_load_stackoverflow)
EP (1) EP0471245B1 (enrdf_load_stackoverflow)
AT (1) ATE138464T1 (enrdf_load_stackoverflow)
DE (2) DE4025956A1 (enrdf_load_stackoverflow)
ES (1) ES2087931T3 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213007C1 (de) * 1992-04-21 1993-12-16 Tech Resources Pty Ltd Verfahren und Vorrichtung zum Abdichten von Düsen in der umgebenden feuerfesten Ausmauerung
US20030062718A1 (en) * 2001-09-28 2003-04-03 Central Sprinkler Corporation Ferrous pipe couplings and prelubricated coupling gaskets
DE10331707B4 (de) * 2003-07-11 2007-04-05 Hdg Bavaria Gmbh Heizkessel & Anlagenbau Brennkammer einer Festbrennstoff-Verbrennungseinrichtung, insbesondere zur Verfeuerung fester Biomasse
CH699948A2 (de) * 2008-11-17 2010-05-31 Stopinc Ag Behälter für Metallschmelze sowie ein Verfahren zur auswechselbaren Befestigung eines feuerfesten Spülsteins oder einer feuerfesten Hülse.
US20110180542A1 (en) * 2010-01-22 2011-07-28 Ryan Drollinger Methods for reducing fluid loss in fluid-bearing systems
US8967245B2 (en) * 2011-05-24 2015-03-03 Baker Hughes Incorporated Borehole seal, backup and method
AT14854U1 (de) * 2015-07-03 2016-07-15 Plansee Se Behälter aus Refraktärmetall

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105531C2 (de) * 1981-02-16 1984-10-04 Didier-Werke Ag, 6200 Wiesbaden Verfahren zur Herstellung von feuerbeständigen oder feuerfesten Massen, nach dem Verfahren hergestellte Massen und ihre Verwendung

Family Cites Families (23)

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Publication number Priority date Publication date Assignee Title
FR571815A (fr) * 1922-12-30 1924-05-23 Fours Rousseau Procédé pour la fabrication des creusets à chauffe rapide ou ordinaire et outillage pour cette fabrication
US3007600A (en) * 1958-01-27 1961-11-07 Thompson Ramo Wooldridge Inc Seal
FR2044723A1 (en) * 1969-04-14 1971-02-26 Oglebay Norton Co Ingot mould hot top lining
DE2102059A1 (de) * 1971-01-16 1972-08-03 Didier-Werke Ag, 6200 Wiesbaden Schieberverschluß für flüssige Schmelze enthaltende Behälter, insbesondere Gießpfannen
US3869132A (en) * 1973-07-18 1975-03-04 Pressure Science Inc Fire resistant sealing ring combination
US4172598A (en) * 1975-07-01 1979-10-30 Goricon Metallurgical Services Limited Sealing methods
US4194036A (en) * 1975-07-29 1980-03-18 Zirconal Processes Limited Module for furnace walls totally wrapped with thermally combustible material
US4077389A (en) * 1976-04-19 1978-03-07 Jamak Incorporated Pneumatic oven door gasket
US4407969A (en) * 1981-07-16 1983-10-04 The Babcock & Wilcox Company Flexible refractory composition
US4392636A (en) * 1981-07-22 1983-07-12 Swiss Aluminium Ltd. Apparatus for degassing molten metal
DE3201531A1 (de) * 1982-01-20 1983-07-28 Didier-Werke Ag, 6200 Wiesbaden "gebrannter magnesia- und magnesiachromstein mit fugenschicht und verfahren zu seiner herstellung"
US4462576A (en) * 1982-02-24 1984-07-31 Didier-Werke Ag Apparatus for supplying gas through the wall of a metallurgical container
JPS5919053A (ja) * 1982-07-23 1984-01-31 Daido Steel Co Ltd 取鍋等精錬容器におけるガスバブリング用ガス供給パイプの接続機構
US4494735A (en) * 1983-11-16 1985-01-22 Swiss Aluminium Ltd. Apparatus for degassing molten metal
US4471950A (en) * 1982-10-22 1984-09-18 Labate M D Expandable, consumable stopper plug for steel making and handling vessels
DE3311617C1 (de) * 1983-03-30 1984-10-25 Messer Griesheim Gmbh, 6000 Frankfurt Verfahren und Einrichtung zum Spuelen einer Metallschmelze,insbesondere von Stahl,in einer Giesspfanne
CH660701A5 (de) * 1983-08-18 1987-06-15 Metacon Ag Vorrichtung zum feststellen des vorhandenseins von metallischer schmelze in einem durchlaufkanal eines metallurgischen ofens oder einer giesspfanne.
GB8329038D0 (en) * 1983-10-31 1983-11-30 Morgan Refractories Ltd Porous plug assemblies
US4538795A (en) * 1984-10-19 1985-09-03 Bate Michael D Device for introducing gas into molten metal in controlled streams
DE3527793A1 (de) * 1985-08-02 1987-02-12 Esb Schweissbetrieb Burbach & Verfahren zur montage eines fuer metallurgische gefaesse vorgesehenen gasspuelsteins
IN168759B (enrdf_load_stackoverflow) * 1987-04-10 1991-06-01 Injectall Ltd
DE3833502A1 (de) * 1988-10-01 1990-04-05 Didier Werke Ag Gasspuelstein
US5014917A (en) * 1989-11-27 1991-05-14 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High-temperature, flexible, thermal barrier seal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105531C2 (de) * 1981-02-16 1984-10-04 Didier-Werke Ag, 6200 Wiesbaden Verfahren zur Herstellung von feuerbeständigen oder feuerfesten Massen, nach dem Verfahren hergestellte Massen und ihre Verwendung

Also Published As

Publication number Publication date
DE59107832D1 (de) 1996-06-27
ATE138464T1 (de) 1996-06-15
DE4025956A1 (de) 1992-02-20
ES2087931T3 (es) 1996-08-01
EP0471245A1 (de) 1992-02-19
DE4025956C2 (enrdf_load_stackoverflow) 1992-09-17
US5249811A (en) 1993-10-05

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