FR2665756A1 - Device for sealing between a vessel (tank, shaft) and a floating roof (vault, arch) of an industrial furnace such as an electric furnace for processing liquid metal - Google Patents

Device for sealing between a vessel (tank, shaft) and a floating roof (vault, arch) of an industrial furnace such as an electric furnace for processing liquid metal Download PDF

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Publication number
FR2665756A1
FR2665756A1 FR9010303A FR9010303A FR2665756A1 FR 2665756 A1 FR2665756 A1 FR 2665756A1 FR 9010303 A FR9010303 A FR 9010303A FR 9010303 A FR9010303 A FR 9010303A FR 2665756 A1 FR2665756 A1 FR 2665756A1
Authority
FR
France
Prior art keywords
tank
vault
periphery
housing
vessel
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.)
Pending
Application number
FR9010303A
Other languages
French (fr)
Inventor
Pernet Daniel
Parant Gerard
Marchal Jean-Dominique
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR9010303A priority Critical patent/FR2665756A1/en
Publication of FR2665756A1 publication Critical patent/FR2665756A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/12—Working chambers or casings; Supports therefor
    • F27B3/16—Walls; Roofs
    • 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
    • F27D1/02—Crowns; Roofs
    • F27D1/025—Roofs supported around their periphery, e.g. arched roofs
    • 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
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • F27D1/1816—Removable covers specially adapted for arc furnaces
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
    • F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water

Abstract

This device is placed in a housing (4) arranged on the periphery of the vessel (2) and comprises a flexible refractory material consisting of a stack of asbestos ropes (cords, twines) (8), placed on a refractory bed (hearth) (7) and covered with a glass-fibre fabric (9); the fabric (9) and the ropes (8) closely match the periphery of the floating roof (3) by virtue of their flexibility and resume their initial shape by virtue of their elasticity when the roof (3) is raised so that, after a further lowering of the latter, the fabric and the glass-fibre ropes again provide an excellent leaktight contact with the roof.

Description

La presente invention a pour objet un dispositif d'étanchéité entre une cuve et une volte d'un four, teL qu'un four eLectrique d'aciérie, pLace dans un Logement agence. sur Le pourtour de La cuve, au-dessus de La botte a eau détimitée par La double paroi de La cuve. The present invention relates to a sealing device between a tank and a volte of an oven, such as an electric steel furnace, placed in an agency housing. on the periphery of the tank, above the water boot bounded by the double wall of the tank.

Jusqu'à présent L'étanchéité entre La voûte fLottante et La cuve d'un four eLectrique a ete.  Up to now, the seal between the floating vault and the tank of an electric oven has been.

assurée par un joint de sabLe rempLissant Le Logement réservé au-dessus de La boite a eau constituant La partie supérieure de La cuve, ou bien par un contact mécanique avec La volte fLottante for, du fait que Le sabLe reste dans La forme où iL était Lorsqu'on soulève La voûte, iL peut apparaître des probLèmes d'étanchéité Lorsqu'on repose à nouveau La voûte sur
Le sable, Le sabLe ne s'adaptant pLus étroitement a La forme de La périphérie de La voûte. De même, les contacts purement mecaniques ne se sont pas reveLes entièrement satisfaisants.ensured by a sabellant seal filling the reserved housing above the water box constituting the upper part of the tank, or else by mechanical contact with the floating volte for, because the sable remains in the form where it was When the vault is lifted, there may be sealing problems When the vault is rested on
The sand, the saber, does not fit more closely to the shape of the periphery of the arch. Likewise, the purely mechanical contacts were not entirely satisfactory.

L'invention a donc pour but de réaliser un dispositif qui assure une exceLLente étanchéité entre
La vote fLottante et La cuve.The invention therefore aims to provide a device which provides an excellent seal between
The floating vote and the tank.

Suivant L'invention, Le dispositif comprend un materiau soupLe refractaire dispose dans Le Logement pour supporter La périphérie de La voûte, et qui peut reprendre sa forme initiaLe Lorsque La volte est soulevée. According to the invention, the device comprises a supple refractory material arranged in the housing to support the periphery of the vault, and which can return to its initial shape when the volte is raised.

Dans ces conditions grâce a L'élasticité reLative dudit materiau, convenabLement choisi, ceLui-ci s'adapte etroitement au pourtour de La vote fLottante chaque fois que ceLLe-ci est soulevée puis å nouveau mise en appui sur Le matériau. Under these conditions, thanks to the relative elasticity of said material, suitably chosen, it adapts tightly to the periphery of the floating vote each time it is raised and then placed again on the material.

Suivant un mode de reaLisation de L'invention, Le materiau soupLe refractaire est constitue par un empiLement de couches de cordes de fibre de verre superposées, éventueLLement revêtu d'une toi Le du même matériau fixée a La couche supérieure. According to one embodiment of the invention, the supple refractory material is constituted by a stack of layers of superposed glass fiber cords, optionally coated with a sheet of the same material attached to the upper layer.

La fibre de verre s'est en effet révélée comme un matériau particutièrement approprie : grace a sa soupLesse reLative, eLLe épouse Le contour de La périphérie de La volte et reprend sa forme initiaLe
Lorsque ceLLe-ci est souLevée
"autres particularités et avantages de
L'invention apparatront au cours de La description qui va suivre, faite en référence au dessin annexé qui en iLLustre une forme de réaLisation a titre d'exempLe non Limitatif.Fiberglass has indeed proven to be a particularly suitable material: thanks to its relative flexibility, it hugs the outline of the periphery of the volte and resumes its initial shape.
When this is lifted
"other features and advantages of
The invention will appear during the description which follows, made with reference to the appended drawing which illustrates a form of embodiment thereof by way of nonlimiting example.

La figure unique est une vue en coupe verticaLe partieLLe de La cuve et de La voûte fLottante d'un four électrique de traitement de métal Liquide teL que L'acier
On voit au dessin un four électrique dans
LequeL une masse de métal Liquide, par exempLe de
L'acier, a été fondue pour former un bain 1. Le four comprend une cuve 2 et une votre fLottante 3. Cette vote est constituée par une pièce métaLLique 3a, dont
La face tournée vers L'intérieur du four est revêtue par un matériau réfractaire 3b. La cuve 2 est constituée, a sa partie supérieure, normaLement non en contact avec Le bain 1, par une doubLe paroi a, b rempLie d'un Liquide de refroidissement 10 tel que de
L'eau en circuLation, et sur Le pourtour supérieur de
LaqueLLe est ménagé un Logement 4 ouvert vers Le haut.The single figure is a vertical sectional view of the tank and the floating vault of an electric furnace for treating liquid metal such as steel.
We see in the drawing an electric oven in
Which a mass of Liquid metal, e.g.
The steel has been melted to form a bath 1. The oven includes a tank 2 and a float 3. This vote consists of a metal part 3a, of which
The side facing the interior of the oven is coated with a refractory material 3b. The tank 2 is constituted, at its upper part, normally not in contact with the bath 1, by a double wall a, b filled with a coolant 10 such as
Circulating water, and on the upper perimeter of
There is a housing 4 open upwards.

Ce Logement 4 est placé sous La périphérie de La voûte 3, LaqueLLe est pourvue d'une pLaque circuLaire 5 d'appui sur un joint 6 d'étanchéite placé dans Le
Logement 4. A sa partie inférieure renfermant Le bain 1, La cuve 2 est constituée par une carcasse métaLLi- que c revêtue intérieurement par un matériau refrac- taire d au contact du bain 1.This housing 4 is placed under the periphery of the vault 3, which is provided with a circular plate 5 bearing on a seal 6 for sealing placed in the
Housing 4. At its lower part containing the bath 1, The tank 2 consists of a metallic carcass c coated internally with a refractory material d in contact with the bath 1.

Ce joint 6 peut étire réalisé de La maniere suivante : Le fond du Logement 4 est revetu d'une soLe réfractaire soupLe 7, constituee en un matériau teL que celui connu sous la marque commerciate "Dossolite". Au-dessus de La soLe 7 est disposé un empiLement de couches de cordes 8 superposées, réalisé en un matériau soupLe réfractaire, pouvant reprendre sa forme initiaLe Lorsque La plaque 5 n'est pas en appui sur Lui. Les cordes 8 peuvent ainsi être avantageusement constituées en fibre de verre et avoir une section rectanguLaire, par exemple carrée comme represente, ce qui faciLite Leur empiLement, Les couches étant au nombre de deux dans L'exempLe illustré au dessin. This seal 6 can be drawn in the following manner: The bottom of the housing 4 is coated with a flexible refractory plate 7, made of a material such as that known under the trade mark "Dossolite". Above the base 7, a stack of superposed layers of ropes 8 is arranged, made of a flexible refractory material, which can resume its initial shape when the plate 5 is not supported on it. The strings 8 can thus advantageously be made of fiberglass and have a rectangular section, for example square as shown, which facilitates their stacking, the layers being two in number in the example illustrated in the drawing.

La couche de cordes supérieure est de prefe- rence revêtue d'une toi Le de fibre de verre 9, fixée sur Les cordes 8 par exempLe par coLLage, et qui assure Leur maintien. La toi Le 9 et Les cordes B s'étendent sur toute La Largeur du Logement 4 qu'elles remplissent complètement. The upper layer of cords is preferably coated with a sheet of glass fiber 9, fixed to the cords 8 for example by gluing, and which ensures their maintenance. The you The 9 and the strings B extend over the entire width of the housing 4 which they completely fill.

Exterieurement La cuve 2. est pourvue d'une toLe circulaire 11 de défLexion et de protection des équipements techniques du four (connus en eux-mêmes et non représentés). Externally The tank 2. is provided with a circular sheet 11 for deflection and protection of the technical equipment of the oven (known in themselves and not shown).

Grâce a sa soupLesse reLative, La fibre de verre constituant Les cordes carrées 8 et La toi Le de recouvrement 9 épouse étroitement La périphérie de La pLaque d'appui 5, et revient a sa forme initiaLe
Lorsque La volte 3 est soulevée. De ce fait, Lorsque
La volte est a nouveau abaissée sur La cuve 2, un excellent contact étanche a environ 95%, est a nouveau établi entre La pLaque 5 et La toile 9, sur toute La périphérie du four, grace a La surface de contact importante procurée par La pLaque d'appui 5. Ce contact étanche est assuré en permanence pendant Le traitement du bain de métal Liquide 1. En outre, La fibre de verre présente une bonne tenue å La température et une bonne tenue mécanique.Thanks to its relative flexibility, the fiberglass constituting the square cords 8 and the covering layer 9 closely matches the periphery of the support plate 5, and returns to its initial shape.
When Volte 3 is raised. Therefore, when
The volte is again lowered on the tank 2, an excellent tight contact to about 95%, is again established between the plate 5 and the fabric 9, over the entire periphery of the oven, thanks to the large contact surface provided by the support plate 5. This watertight contact is permanently ensured during the treatment of the liquid metal bath 1. In addition, the glass fiber exhibits good temperature resistance and good mechanical resistance.

La fibre de verre peut etre remplacée par tout autre matériau réfractaire fibreux équivaLent, présentant Les me mes caractéristiques de tenue a La température et de tenue manique, ainsi que de souplesse et d'élasticité. Fiberglass can be replaced by any other equivalent fibrous refractory material, exhibiting the same characteristics of temperature resistance and potholder resistance, as well as flexibility and elasticity.

L'invention est appLicabLe a divers fours industrieLs du type comportant une vouge fLottante venant prendre appui sur La partie supérieure d'une cuve.  The invention is applicable to various industrial ovens of the type comprising a floating wave coming to bear on the upper part of a tank.

Claims (5)

REVENDICATIONS 1 Dispositif d'étanchéité entre une cuve (2.) et une voûte flottante (3) d'un four industrieL, teL qu'un four électrique de traitement de métal 1 Sealing device between a tank (2.) and a floating vault (3) of an industrial oven, such as an electric metal treatment oven Liquide placé dans un Logement (4) agencé sur Le pourtour de La cuve (2), caractérisé en ce qu'il comprend un matériau soupLe réfractaire (8, 9) disposé dans Le Logement pour supporter La périphérie de La volte (:3), et qui peut reprendre sa forme initiaLeLiquid placed in a Housing (4) arranged on the periphery of the tank (2), characterized in that it comprises a supple refractory material (8, 9) arranged in the Housing to support the periphery of the volte (: 3) , and which can return to its initial form Lorsque La volte est soulevée.When the flap is raised. 2. Dispositif seLon La revendication 1, caractérisé en ce que Le matériau soupLe réfractaire est constitué par un empiLement de couches de cordes c8) de fibre de verre superposées. 2. Device according to claim 1, characterized in that the supple refractory material consists of a stack of layers of strings c8) of superposed glass fiber. 3 Dispositif seLon La revendication 2, ca ractérisé en ce que L'empiLement de couches de cordes (8) de fibre de verre superposées est revêtu d'une toi Le (9) de fibre de verre fixée a La couche supérieure. 3 Device according to claim 2, ca characterized in that the stack of layers of strings (8) of superposed glass fiber is coated with a foil (9) of glass fiber attached to the upper layer. 4. Dispositif seLon La revendication 2 ou 3, caractérisé en ce que Les cordes de fibre de verre (8) ont une section rectanguLaire ou carrée. 4. Device according to claim 2 or 3, characterized in that the glass fiber strings (8) have a rectangular or square section. 5. Dispositif seLon L'une des revendications 2 a 4, caractérisé en ce qu'il comprend une soLe réfractaire soupLe (7) pLacée au fond du Logement (4) et sur LaqueLLe repose Le matériau soupLe réfractaire (8, 9).  5. Device according to one of claims 2 to 4, characterized in that it comprises a flexible refractory base (7) placed at the bottom of the housing (4) and on which the refractory flexible material rests (8, 9).
FR9010303A 1990-08-13 1990-08-13 Device for sealing between a vessel (tank, shaft) and a floating roof (vault, arch) of an industrial furnace such as an electric furnace for processing liquid metal Pending FR2665756A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9010303A FR2665756A1 (en) 1990-08-13 1990-08-13 Device for sealing between a vessel (tank, shaft) and a floating roof (vault, arch) of an industrial furnace such as an electric furnace for processing liquid metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9010303A FR2665756A1 (en) 1990-08-13 1990-08-13 Device for sealing between a vessel (tank, shaft) and a floating roof (vault, arch) of an industrial furnace such as an electric furnace for processing liquid metal

Publications (1)

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FR2665756A1 true FR2665756A1 (en) 1992-02-14

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FR9010303A Pending FR2665756A1 (en) 1990-08-13 1990-08-13 Device for sealing between a vessel (tank, shaft) and a floating roof (vault, arch) of an industrial furnace such as an electric furnace for processing liquid metal

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FR (1) FR2665756A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693261A1 (en) * 1992-07-06 1994-01-07 Unimetall Sa Furnace, in particular electric furnace, for processing liquid metal.
CN108895848A (en) * 2018-05-23 2018-11-27 山东钢铁集团日照有限公司 A kind of device solving novel sintered ring cold machine water-stop leak
CN109458850A (en) * 2018-10-29 2019-03-12 山东钢铁集团日照有限公司 A kind of device of the watertight sealing water channel preventing water leakage of sintering circular-cooler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE673559C (en) * 1936-11-18 1939-03-24 Siemens & Halske Akt Ges Lid seal for arc furnace
GB557484A (en) * 1942-05-16 1943-11-23 Brassert & Co Improvements in and relating to furnaces
US3222445A (en) * 1960-05-17 1965-12-07 Knapsack Ag Cover with removable parts for electric furnaces
EP0116696A1 (en) * 1982-12-16 1984-08-29 Man Gutehoffnungshütte Gmbh Smelting furnace container
DE3530838A1 (en) * 1985-08-29 1987-03-05 Vacuumschmelze Gmbh High-temperature seal for a furnace subjected to positive pressure or reduced pressure
WO1989005431A1 (en) * 1987-12-10 1989-06-15 Schaefer Brothers Incorporated Long life cover for heat chamber
EP0354127A1 (en) * 1988-08-04 1990-02-07 Stein Heurtey Bell-type furnaces, in particular for annealing metallic coils in a controlled atmosphere

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE673559C (en) * 1936-11-18 1939-03-24 Siemens & Halske Akt Ges Lid seal for arc furnace
GB557484A (en) * 1942-05-16 1943-11-23 Brassert & Co Improvements in and relating to furnaces
US3222445A (en) * 1960-05-17 1965-12-07 Knapsack Ag Cover with removable parts for electric furnaces
EP0116696A1 (en) * 1982-12-16 1984-08-29 Man Gutehoffnungshütte Gmbh Smelting furnace container
DE3530838A1 (en) * 1985-08-29 1987-03-05 Vacuumschmelze Gmbh High-temperature seal for a furnace subjected to positive pressure or reduced pressure
WO1989005431A1 (en) * 1987-12-10 1989-06-15 Schaefer Brothers Incorporated Long life cover for heat chamber
EP0354127A1 (en) * 1988-08-04 1990-02-07 Stein Heurtey Bell-type furnaces, in particular for annealing metallic coils in a controlled atmosphere

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693261A1 (en) * 1992-07-06 1994-01-07 Unimetall Sa Furnace, in particular electric furnace, for processing liquid metal.
EP0578596A1 (en) * 1992-07-06 1994-01-12 UNIMETAL Société Française des Aciers Longs Furnace, in particular electric furnace for the treatment of molten metal
US5410565A (en) * 1992-07-06 1995-04-25 Unimetal Societe Francaise Des Aciers Longs Furnace, in particular an electric furnace, for treating liquid metal
CN108895848A (en) * 2018-05-23 2018-11-27 山东钢铁集团日照有限公司 A kind of device solving novel sintered ring cold machine water-stop leak
CN109458850A (en) * 2018-10-29 2019-03-12 山东钢铁集团日照有限公司 A kind of device of the watertight sealing water channel preventing water leakage of sintering circular-cooler

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