EP0471245B1 - Garnissage réfractaire d'une fente annulaire dans une enceinte métallurgique - Google Patents
Garnissage réfractaire d'une fente annulaire dans une enceinte métallurgique Download PDFInfo
- 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
Links
Images
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 or 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)
Claims (5)
- Garnissage réfractaire d'une fente annulaire prévue entre une brique moulée, notamment une brique d'insufflation de gaz, montée dans une ouverture d'un revêtement réfractaire d'une cuve métallurgique et le revêtement, caractérisé par le fait que le garnissage est une couche intégrée (8) déformable, préfabriquée, qui est adaptée à la forme et au volume de la fente annulaire et qui peut être fixée dans l'ouverture ou sur la brique moulée (6) avant la mise en place de cette dernière, la couche intégrée (8) étant formée d'une masse gonflant à la température de service qui est enfermée dans une enveloppe (10) adaptée à la forme et au volume de la fente annulaire (7), le volume de la couche intégrée (8) étant inférieur à celui de la fente annulaire (7).
- Garnissage réfractaire selon l'une des revendications 1 ou 2, caractérisé par le fait que l'enveloppe (10) se déchire en au moins un point destiné à la rupture lors de la mise en place de la couche intégrée (8).
- Garnissage réfractaire selon la revendication 1, caractérisé par le fait que l'enveloppe (10) est en matériau organique, tel que du papier ou un matériau synthétique ou un film métallique.
- Garnissage réfractaire selon l'une des revendications précédentes, caractérisé par le fait que la couche intégrée (8) et la brique d'insufflation de gaz (6) forment un ensemble de montage préfabriqué qui peut être mis en place sous sa forme préfabriquée dans l'ouverture (4) du revêtement (2).
- Garnissage réfractaire selon la revendication 4, caractérisé par le fait que l'ensemble de montage est enveloppé dans une enveloppe combustible commune.e
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4025956A DE4025956A1 (de) | 1990-08-16 | 1990-08-16 | Feuerfeste fuellung eines ringspaltes bei einem metallurgischen gefaess |
DE4025956 | 1990-08-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0471245A1 EP0471245A1 (fr) | 1992-02-19 |
EP0471245B1 true EP0471245B1 (fr) | 1996-05-22 |
Family
ID=6412357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91112934A Expired - Lifetime EP0471245B1 (fr) | 1990-08-16 | 1991-08-01 | Garnissage réfractaire d'une fente annulaire dans une enceinte métallurgique |
Country Status (5)
Country | Link |
---|---|
US (1) | US5249811A (fr) |
EP (1) | EP0471245B1 (fr) |
AT (1) | ATE138464T1 (fr) |
DE (2) | DE4025956A1 (fr) |
ES (1) | ES2087931T3 (fr) |
Families Citing this family (7)
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)
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)
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 (fr) * | 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 |
-
1990
- 1990-08-16 DE DE4025956A patent/DE4025956A1/de active Granted
-
1991
- 1991-08-01 EP EP91112934A patent/EP0471245B1/fr not_active Expired - Lifetime
- 1991-08-01 DE DE59107832T patent/DE59107832D1/de not_active Expired - Fee Related
- 1991-08-01 AT AT91112934T patent/ATE138464T1/de not_active IP Right Cessation
- 1991-08-01 ES ES91112934T patent/ES2087931T3/es not_active Expired - Lifetime
- 1991-08-13 US US07/744,378 patent/US5249811A/en not_active Expired - Fee Related
Patent Citations (1)
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 |
DE4025956C2 (fr) | 1992-09-17 |
US5249811A (en) | 1993-10-05 |
DE4025956A1 (de) | 1992-02-20 |
ES2087931T3 (es) | 1996-08-01 |
EP0471245A1 (fr) | 1992-02-19 |
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