EP0920361B1 - Plaque resistant au feu et dispositif de serrage pour fermeture coulissante placee au niveau de l'orifice d'evacuation d'une cuve contenant du metal fondu - Google Patents

Plaque resistant au feu et dispositif de serrage pour fermeture coulissante placee au niveau de l'orifice d'evacuation d'une cuve contenant du metal fondu Download PDF

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Publication number
EP0920361B1
EP0920361B1 EP97931607A EP97931607A EP0920361B1 EP 0920361 B1 EP0920361 B1 EP 0920361B1 EP 97931607 A EP97931607 A EP 97931607A EP 97931607 A EP97931607 A EP 97931607A EP 0920361 B1 EP0920361 B1 EP 0920361B1
Authority
EP
European Patent Office
Prior art keywords
plate
longitudinal axis
side surfaces
clamping
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
EP97931607A
Other languages
German (de)
English (en)
Other versions
EP0920361A1 (fr
Inventor
Rolf WALTENSPÜHL
Hans Rothfuss
Werner Keller
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.)
Stopinc AG
Didier Werke AG
Original Assignee
Stopinc AG
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.)
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Publication date
Application filed by Stopinc AG, Didier Werke AG filed Critical Stopinc AG
Publication of EP0920361A1 publication Critical patent/EP0920361A1/fr
Application granted granted Critical
Publication of EP0920361B1 publication Critical patent/EP0920361B1/fr
Anticipated expiration legal-status Critical
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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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B22D41/34—Supporting, fixing or centering means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor

Definitions

  • the invention relates to a refractory plate for a sliding closure according to the preamble of claim 1, and a tensioning device according to the preamble of claim 8 for this plate.
  • fire-resistant plates are provided, which are not of a metal bandage are included. At least two opposite each other Areas of the border are at a respective Plate tapered towards the sliding surface. This tapered edge areas are each for an intervention with an adapted, bevelled surface of a clamping element certainly.
  • the dimensions and angles of the plate are in the area of the bevelled surfaces from the sliding surface to rear bearing surface chosen such that the clamping elements both against the center of the plate as well as against the exert a directed force component on the rear support surface.
  • a each plate can have the shape of a rectangle with rounded Have corners or the shape of a hexagon, which formed from two isosceles trapezoids with a common base is.
  • the object of the present invention is a refractory plate according to the type described above create such an outer shape with cheap manufacture has that with the plate in a tensioned and heated operating state optimal compressive stress conditions are present and that with it an increased durability is achieved.
  • the this plate-receiving slide closure is said to have a Clamping device with which these plates are easy and can be clamped quickly.
  • a clamping device for the bracing of the plate in the slide lock is preferred, which clamping elements has, in order to achieve a full surface coverage the side surfaces of the refractory plate articulated in the frame are stored and at least two of the clamping elements of a single tensioning device against the other two tensioning elements are guided.
  • the bracing of the plate is due to the approximately entire plate length generated by the force with the selected angles, the line of force acting on the plate optimized. So that go in the operating state in the The resulting cracks do not come apart and are sucked in Air through these cracks can be largely prevented. Thereby, it can be said that the plate has no sheet metal jacket manufacture inexpensively.
  • Fig. 1 shows a clamped in a metallic frame 11 Refractory plate 20 with a flow opening 22.
  • This plate 20 is in a sliding closure not shown on Pouring of a container containing molten metal as a bottom or slide plate can be used.
  • Such a slide lock is for example in the document EP-B1 0 277 146 in detail explained and illustrated. It is used especially for molten steel Containing pans used, usually in continuous casting plants are provided.
  • the refractory plate 20 consists of a heat-resistant ceramic material and it can be in one piece or from a base material with at least one high-quality refractory insert be made, this refractory insert advantageously the Flow opening 22 forms through which the molten steel in Operating condition of the plate flows.
  • the plate 20 has a hexagonal outer shape with an elongated symmetrical Training on. Extend on both sides of the longitudinal axis 23 of the plate two each with different lengths and in one blunt Angle y mutually arranged side surfaces 24, 25, which as Bracing surfaces of the plate 20 serve in the metallic frame 11.
  • the shorter side faces 24 are to the longitudinal axis 23 each at an angle ⁇ between 20 ° and 50 °, however the longer side surfaces 25 at an angle ⁇ between 10 ° and 30 ° to the longitudinal axis 23 extending.
  • the angle ⁇ is approximately 30 ° and the angle ⁇ approximately 14 °.
  • the shorter and the longer side surfaces 24, 25 serve as bracing surfaces Plate 20 in the metallic frame 11 and thereby form directly consecutive a transverse edge 26.
  • end faces 27, 28 have a length of approximately half the Plate width. After clamping the plate 20 in the frame 11 these end faces 27, 28 are also contact-free and therefore arranged without tension to the metallic frame 11.
  • the flow opening 22 is arranged perpendicular to the longitudinal axis 23 and has a diameter that is approximately one Is a third to a quarter of the plate width. In relation to the longitudinal extent of the plate 20 is this flow opening offset from the center of the plate against the shorter side faces 24 arranged. Their center lies approximately on the bisector of the angle Line drawn from the obtuse angle y between the shorter and the longer side surface 24, 25 are formed is. Between the opening 22 and the end face 27, which the connects the two shorter side surfaces 24 is preferably one A distance of approximately one third of the plate length is provided.
  • the metallic frame 11 consists of two identical dimensions Frame parts 11 ', two articulated on the latter Clamping shoes 12 as well as connecting the two frame parts Threaded screws 14.
  • the latter are each on the side a frame part 11 'pivotally held and extending through a bore provided in the other frame part 11 '.
  • the screwed together frame parts and the clamping shoes 12 form an opening that corresponds to the outer shape of the plate and in which the plate 20 can be clamped.
  • the frame 11 with the plate 20 clamped therein can in a housing of Sliding closure are inserted, of which only this two centering bolts 16, 17 are illustrated.
  • One part of the frame 11 ' has a corresponding one for receiving the bolt 17 Hole, while the other frame part expediently has a longitudinal groove 18 in which the bolt 16 is centered, so that the frame in the housing by the in the operating state expand the resulting heating at least lengthways can.
  • the plate 20 After the plate 20 is worn, it can be put together with the frame removed from the valve body and using the frame a new plate in these are clamped.
  • the plate 20 has two plane-parallel surfaces 21, 29, at least one of which is ground.
  • the top or the lower surface 21, 29 serves as a sliding surface, which in Operating state of the plate 20 with such a second plate is in sliding contact.
  • the flow openings 22 in its longitudinal axis 23 are in Open position more or less covered or outside this brought into the closed position.
  • To the opposite of the sliding surface Surface 29 generally closes with a dash-dot line Refractory sleeve 32 shown.
  • the plate can be sealed between the plate and this sleeve in a manner known per se in the area of the flow opening Recess for receiving the sleeve or one in the sleeve outstanding approach.
  • the outer shape of the plate could also be reduced or more than six corners may be formed, for example they will be octagonal, in which case the additional areas advantageous between the shorter and the longer side surface 24, 25 in an approximately parallel arrangement to the longitudinal axis 23 would be trained. Also the position of the flow opening 22 to the longitudinal axis 23 could, for example, on the connecting line lie between the edges 26 or elsewhere.
  • FIG. 3 shows a clamping device integrated in a slide housing 19 40 for releasably holding the refractory plate 20.
  • This tensioning device 40 has four arranged in this housing 19 Clamping elements 42, 44, each having a clamping surface form, each in the tensioned state to a corresponding Side surface 24, 25 of the plate 20 are pressed.
  • these clamping elements 42, 44 are for the purpose of being achieved a full surface support on the side surfaces 24, 25 of the Plate 20 each articulated in the housing 19 and two of the Tensioning elements 44 are opposed by a single tensioning means the other two clamping elements 42 guided out.
  • These triangular clamping elements 42, 44 have on their base side the clamping surface and they lie with their one or both slightly cambered backs on stop surfaces 19 'of the housing 19.
  • the two sliding clamping elements 44 on the longer one Side surface 25 are each via a lever 51 with a sliding block 52 connected, which with a transverse to the direction of displacement the clamping elements 44, on the housing 19 rotatably mounted threaded rod 53 are engaged.
  • this threaded rod 53 move the two backdrop stones 52 due to the inside of them provided opposite threads either after inside or outside.
  • the rotation of the threaded rod 53 can be via a manually operated key or via a Automatically acting device, not shown, take place.
  • clamping surfaces of the clamping elements 42, 44 are dimensioned such that that they are approximately the entire length with those with them cover the contacting side surfaces of the refractory plate, however, advantageously a slightly shorter length than the corresponding ones Have plate side surfaces 24, 25 and in the braced State between the ends of these side surfaces 24, 25 attack without touching the side plate edges 26, 28 ', to prevent cracking at these edges.
  • Fig.4 and Fig.5 illustrate a variant of the clamping element 42 and the plate 20 interacting with it
  • Plate 20 has a shorter side surface 24 extending bevel 20 ', which is intended to a holding element 43 fastened to the tensioning element 42 rests on it. It prevents the plate 20 from falling out when it is is in the released state and the valve housing 19 and with the plate 20 seen in a longitudinal extension in a vertical Are in the mounting position.
  • the plate could, for example, on its narrow side with a Synod tape should be surrounded so that after use the disassembly disassembling the tensioning elements does not fall apart. Furthermore, it could be used for insulation on this narrow side and / or on the back 29 with a flexible pad, e.g. a pyrostop paper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Closures For Containers (AREA)

Claims (10)

  1. Plaque réfractaire pour une fermeture coulissante prévue à la sortie de coulée d'un récipient contenant un bain de métal fondu, qui forme, par sa forme extérieure, une plaque polygonale (20) présentant un axe longitudinal (23), sur chacun des deux côtés duquel s'étendent au moins deux surfaces latérales (24, 25) de longueurs différentes et disposées l'une par rapport à l'autre selon un angle obtus (γ), qui servent de surfaces de serrage de la plaque (20) dans un cadre métallique (11) ou analogue, caractérisée,
       en ce que les surfaces latérales plus courtes (24) sont disposées en formant chacune avec l'axe longitudinal (23) un angle (α) d'entre 20° et 50°, tandis que les surfaces latérales plus longues (25) sont disposées en formant chacune un angle (β) d'entre 10° et 30° avec l'axe longitudinal (23).
  2. Plaque réfractaire selon la revendication 1, caractérisée en ce que les deux surfaces latérales (24, 25) d'un même côté de l'axe longitudinal (23) sont reliées à celles du côté opposé par des surfaces frontales (27, 28) de la plaque (20) qui s'étendent perpendiculairement à l'axe longitudinal (23), ces surfaces frontales (27, 28) étant prévues comme surfaces exemptes de contraintes dans l'état monté de la plaque dans le cadre métallique (11) ou analogue.
  3. Plaque réfractaire selon la revendication 1 ou 2, caractérisée en ce que les surfaces latérales plus courtes (24) sont disposées en formant chacune un angle (α) d'environ 30° avec l'axe longitudinal (23), tandis que les surfaces latérales plus longues (25) sont disposées en formant chacune un angle (β) d'environ 15° avec l'axe longitudinal (23).
  4. Plaque réfractaire selon une des revendications 1 à 3, caractérisée en ce que la plaque (20) est de configuration symétrique par rapport à l'axe longitudinal (23).
  5. Plaque réfractaire selon une des revendications précédentes, caractérisée en ce que la plaque (20) possède une forme extérieure hexagonale.
  6. Plaque réfractaire selon une des revendications précédentes, caractérisée en ce que la plaque (20) possède, au moins le long d'une surface latérale (24), un biseau (20') servant à retenir la plaque dans le cadre (11) ou dans le boítier (19).
  7. Plaque réfractaire selon une des revendications précédentes, caractérisée en ce que la plaque (20) est munie d'une ouverture d'écoulement (22) qui se trouve sur son axe longitudinal (23) et qui est déportée par rapport aux surfaces latérales plus courtes (24).
  8. Dispositif de serrage pour la fixation démontable d'une plaque réfractaire selon une des revendications précédentes, dans une fermeture coulissante à la sortie de coulée d'un récipient contenant un bain de métal fondu, comprenant au moins quatre éléments de serrage (42, 44) disposés dans un cadre (11, 19), qui forment chacun une surface de serrage qui, à l'état serré, est en contact avec une surface latérale correspondante (24, 25) de la plaque réfractaire (20), caractérisée
       en ce que, pour obtenir une portée par surface intégrale sur les surfaces latérales (24, 25) de la plaque (20), ces éléments de serrage (42, 44) sont montés chacun de façon articulée dans le cadre (11, 19) ou analogue et au moins deux des éléments de serrage sont guidés mobiles en translation par rapport aux deux autres éléments de serrage (42) par un unique moyen de serrage.
  9. Dispositif de serrage selon la revendication 8, caractérisé en ce que les éléments de serrage (42, 44) présentent une longueur légèrement inférieure à celle des surfaces latérales correspondantes (24, 25) de la plaque et qu'à l'état serré, ils attaquent entre les extrémités de ces surfaces latérales (24, 25).
  10. Dispositif de serrage selon la revendication 8 ou 9, caractérisé en ce que le moyen de serrage peut être actionné automatiquement par un dispositif.
EP97931607A 1996-08-05 1997-07-25 Plaque resistant au feu et dispositif de serrage pour fermeture coulissante placee au niveau de l'orifice d'evacuation d'une cuve contenant du metal fondu Expired - Lifetime EP0920361B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH192296 1996-08-05
CH192296 1996-08-05
PCT/CH1997/000284 WO1998005451A1 (fr) 1996-08-05 1997-07-25 Plaque resistant au feu et dispositif de serrage pour fermeture coulissante placee au niveau de l'orifice d'evacuation d'une cuve contenant du metal fondu

Publications (2)

Publication Number Publication Date
EP0920361A1 EP0920361A1 (fr) 1999-06-09
EP0920361B1 true EP0920361B1 (fr) 2000-05-24

Family

ID=4221732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97931607A Expired - Lifetime EP0920361B1 (fr) 1996-08-05 1997-07-25 Plaque resistant au feu et dispositif de serrage pour fermeture coulissante placee au niveau de l'orifice d'evacuation d'une cuve contenant du metal fondu

Country Status (8)

Country Link
US (1) US6092701A (fr)
EP (1) EP0920361B1 (fr)
JP (1) JP2001505130A (fr)
CN (1) CN1078114C (fr)
AT (1) ATE193236T1 (fr)
AU (1) AU3535097A (fr)
DE (1) DE59701773D1 (fr)
WO (1) WO1998005451A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2481500A1 (fr) * 2011-01-31 2012-08-01 Stopinc Aktiengesellschaft Plaque de fermeture et fermeture coulissante au niveau d'une busette de coulée d'un récipient contenant un métal en fusion

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA72568C2 (uk) * 1999-12-10 2005-03-15 Везувіус Крусібл Компані Стійка до утворення тріщин клапанна дошка для засувки, що контролює потік розплавленого металу
EP1138419A1 (fr) * 2000-03-29 2001-10-04 Vesuvius Crucible Company Cale d'un dispositif de clamage de plaque réfractaire dans un valve à tiroir
TW526315B (en) * 2001-03-06 2003-04-01 Vesuvius Crucible Co Process for repairing a crack resistant valve plate and plate so repaired
WO2004069448A2 (fr) * 2001-11-23 2004-08-19 Stopinc Aktiengesellschaft Dispositif de serrage pour plaque refractaire de systeme de fermeture coulissant, au niveau de la busette de coulee d'une cuve pour matiere en fusion
JP4456363B2 (ja) * 2003-12-16 2010-04-28 東京窯業株式会社 スライディングノズル用プレート
US20130075433A1 (en) * 2011-09-28 2013-03-28 Patrick D. King Valve plate assembly for a molten metal slide gate valve
US10587287B2 (en) 2018-03-28 2020-03-10 International Business Machines Corporation Computer system supporting multiple encodings with static data support
US10587284B2 (en) 2018-04-09 2020-03-10 International Business Machines Corporation Multi-mode compression acceleration

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE2821839B2 (de) * 1978-05-19 1981-04-16 Stopine AG, Zug Schiebeverschluß für den Ausguß an Metallschmelze enthaltenden Behältern
US4573616A (en) * 1982-05-24 1986-03-04 Flo-Con Systems, Inc. Valve, clamp, refractory and method
DE3223181C2 (de) * 1982-06-22 1984-07-12 Didier-Werke Ag, 6200 Wiesbaden Einspannvorrichtung für eine Verschlußplatte an einem Schiebeverschluß für den Ausguß an einem Metallschmelze enthaltenden Behälter
CH660313A5 (de) * 1984-04-24 1987-04-15 Stopinc Ag Verfahren zur herstellung einer verschlussplatteneinheit fuer einen schiebeverschluss.
IL73030A (en) * 1984-09-19 1989-07-31 Yaacov Kaufman Joint and method utilising its assembly
JPS61159260A (ja) * 1984-12-28 1986-07-18 Toshiba Ceramics Co Ltd 溶融金属排出装置
JPS61159258A (ja) * 1984-12-29 1986-07-18 Kurosaki Refract Co Ltd スライディングノズル装置のプレ−ト固定機構
BE901948A (fr) * 1985-03-15 1985-09-16 Vesuvius Internat Corp Dispositif de serrage d'un element d'usure d'une fermeture coulissante de conteneur metallurgique.
JPH0237491Y2 (fr) * 1987-08-26 1990-10-11

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2481500A1 (fr) * 2011-01-31 2012-08-01 Stopinc Aktiengesellschaft Plaque de fermeture et fermeture coulissante au niveau d'une busette de coulée d'un récipient contenant un métal en fusion
WO2012104028A1 (fr) * 2011-01-31 2012-08-09 Stopinc Aktiengesellschaft Plaque de fermeture et fermeture coulissante sur le bec de coulée d'un récipient contenant un métal en fusion
TWI615218B (zh) * 2011-01-31 2018-02-21 史托賓克公司 閉合板以及熔融金屬容裝容器流槽上的滑動閉合件

Also Published As

Publication number Publication date
US6092701A (en) 2000-07-25
AU3535097A (en) 1998-02-25
CN1233199A (zh) 1999-10-27
WO1998005451A1 (fr) 1998-02-12
DE59701773D1 (de) 2000-06-29
JP2001505130A (ja) 2001-04-17
ATE193236T1 (de) 2000-06-15
CN1078114C (zh) 2002-01-23
EP0920361A1 (fr) 1999-06-09

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