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EP1572396A2 - 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 - Google Patents

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

Info

Publication number
EP1572396A2
EP1572396A2 EP02791705A EP02791705A EP1572396A2 EP 1572396 A2 EP1572396 A2 EP 1572396A2 EP 02791705 A EP02791705 A EP 02791705A EP 02791705 A EP02791705 A EP 02791705A EP 1572396 A2 EP1572396 A2 EP 1572396A2
Authority
EP
European Patent Office
Prior art keywords
clamping
jaw
plate
clamping jaw
eccentric
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.)
Withdrawn
Application number
EP02791705A
Other languages
German (de)
English (en)
Inventor
Werner Keller
Selcuk Tuerkoglu
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
Original Assignee
Stopinc 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 Stopinc AG filed Critical Stopinc AG
Publication of EP1572396A2 publication Critical patent/EP1572396A2/fr
Withdrawn legal-status Critical Current

Links

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

Definitions

  • Clamping device for a fire-proof plate of a sliding closure on the spout of a container for molten metal
  • the invention relates to a tensioning device for a refractory plate of a sliding closure on the spout of a container for molten metal according to the preamble of claims 1 and 7 respectively.
  • a tensioning device of this type is known, for example, from EP-B-0 920 361.
  • a fireproof sliding closure plate which are arranged in mirror image to the longitudinal median plane of the plate and form an angle with one another, clamping elements engage with their clamping surfaces, which are pivotally mounted in a slide housing.
  • the plate is clamped in via a further pair of side surfaces, on which either two moving parts of one in the rail attack housing housed frame or two further clamping elements, each of which is clamped by means of a clamping device.
  • the present invention has for its object to provide a manufacturing and assembly technically simple and space-saving clamping device of the type mentioned and a slide closure comprising the clamping device, which allow easy and quick clamping of the plate, and in which optimal compressive stress ratios for the plate in the clamped and heated operating condition are guaranteed.
  • the tensioning device according to the invention is simple, inexpensive and enables space-saving installation of the plate in the sliding closure.
  • Figure l is a plan view of a slide lock housing with a refractory plate clamped by means of a clamping device in a first embodiment.
  • FIG. 2 shows a plan view of a sliding closure housing with a refractory plate clamped in by means of a tensioning device in a second embodiment
  • FIG. 3 shows the section marked by a circle A in FIG. 1 on an enlarged scale
  • FIG. 4 shows the section marked by a circle B in FIG. 1 on an enlarged scale
  • FIG. 5 shows the section marked by a circle C in FIG. 2 on an enlarged scale
  • FIG. 6 shows the section marked by a circle D in FIG. 2 on an enlarged scale
  • FIG. 7 shows an embodiment of a tensioning element according to the invention in a perspective exploded view
  • FIG. 8 shows a plan view of a sliding closure housing with a refractory plate clamped in by means of a tensioning device in a third embodiment
  • a sliding closure on the spout of a container for molten metal has a housing 1, in which a refractory plate 3 with a flow opening 4 is clamped by means of a clamping device 2.
  • the structure and mode of operation of the slide closure which is used in particular for ladles containing molten steel and which are provided in continuous casting plants, is known per se (for example from EP-B 10277146) and is therefore not shown or described in more detail.
  • the plate 3 may be a slide top plate of the sliding lock, however, a stationary base plate of the same could also be clamped by means of the tensioning device 2 according to the invention.
  • the refractory plate 3 consists of a heat-resistant ceramic material; it can be formed in one piece, or consist of a base material and be provided with a refractory insert which forms the flow opening 4, through which the molten steel flows in the operating state when the slide closure is open.
  • the plate 3 has an elongated, symmetrical shape; the longitudinal median plane of the plate 3 is designated L in FIG. 1.
  • the longitudinal center plane L runs in the direction of actuation of the sliding closure.
  • the plate 3 has two pairs of side surfaces 10, 11 arranged in mirror image to the longitudinal center plane L, each of which forms an angle ⁇ or ⁇ with the longitudinal center plane L, and which serve as bracing surfaces.
  • the two side surface pairs 10, 1 1 are of different lengths and at a different angle, ß to the longitudinal center plane L, the shorter side surfaces 10 enclosing a larger angle ⁇ with the longitudinal center plane L than the longer side surfaces 1 1.
  • Both side surfaces 10, 11 lying to one side of the longitudinal median plane L form an obtuse angle ⁇ with one another. They are connected to one another in each case via a side surface 15 parallel to the longitudinal center plane L.
  • the side surfaces 10 and 11, respectively, which are opposite with respect to the longitudinal center plane L, are each connected to one another via rounded end surfaces 16.
  • the tensioning device 2 for releasably holding the refractory plate 3 has four tensioning elements 22, 23 arranged in the housing 1, with an adjustable tensioning element 22 and one or two articulated stored clamping elements 23 are provided for each side surface pair 10, 1 1 of the plate 3 and arranged in the housing 1 with respect to the longitudinal center plane L.
  • the clamping elements 23 associated with the longer, a smaller angle ⁇ with the longitudinal median plane L 1 associated side surfaces 11 are formed as shown in FIG. 4 and are pivotally mounted in the housing 1 about an axis a, so that they when bracing the plate 3 the effective angle ß of the side surfaces 1 1 can adjust by itself and as a result a full-surface support of their clamping surfaces 24 is ensured, which causes a uniform pressure distribution of the clamping force on the plate 3, which for the life (pliability) of the plate 3 is an advantage.
  • FIG. 7 also illustrates the structure of such a tensioning element, but the tensioning element shown in FIG. 7 differs somewhat from that of FIG. 3.
  • the tensioning element 22 has a base body 26 which, according to FIG. 3, is attached to the housing 1 of the slide closure by means of three screws 25 (two screws 25 are provided in the embodiment according to FIG. 7).
  • the base body 26 is provided with a recess 27 which has a U-shaped cross section and a bottom surface 28 which can be seen in FIG. 7.
  • a clamping jaw 30 is inserted, the shape of which corresponds to the recess 27. catching surface 31 and a clamping surface 32. There is a game between the peripheral surface 31 and the recess 27.
  • the clamping jaw 30 is arranged in the recess 27 in a longitudinally adjustable manner by means of two pins 34 which can be seen in FIG.
  • an eccentric 37 is provided, the axis of rotation e (FIG. 7) of which extends transversely to the direction of adjustment of the jaw 30, and the eccentric surface 38 formed with a self-locking slope with the Inner surface of an opening 40 in the jaw 30 cooperates.
  • the end edge of the eccentric surface 38 is designated 39 in FIG. 3.
  • the opening 40 of the clamping jaw 30 has a flat part 40b in addition to the circular part 40a interacting with the eccentric surface 38 in the region facing away from the clamping surface 32.
  • the eccentric 37 can have a square head, for example.
  • the eccentric 37 of the clamping element 22 according to FIG. 3 is turned clockwise and the clamping jaw 30 with its clamping surface 32 is rotated. the side surface 10 of the plate 3 clamped.
  • the clamping jaw 30 can adapt itself to the respective effective angle ⁇ of the side surface 10 via the pins 34 and longitudinal grooves 35, so that a full-surface support is ensured.
  • the eccentric 37 of the clamping element 22 according to FIG. 3 is rotated counterclockwise. As soon as the end edge 39 of the eccentric surface 38 lying at the maximum distance from the axis of rotation e reaches the flat part 40b of the opening 40, the clamping jaw 30 is moved away from the side surface 10 of the plate 3.
  • FIG. 2 differs from that according to FIG. 1 in that the clamping elements 22 ′ which can be adjusted for clamping the plate 3 by means of eccentrics 37 are assigned to the longer surfaces 11 enclosing a smaller angle ⁇ with the longitudinal median plane L.
  • the tensioning elements 23 'pivotally mounted in the housing 1 are provided for the shorter surfaces 10 enclosing a larger angle ⁇ with the longitudinal center plane L.
  • FIG 8 shows a further variant of a clamping device 2 "for clamping the plate 3.
  • This in turn has four clamping elements, three of which are designed as clamping shoes pivotably mounted in the slide housing 1 - similar to those according to FIGS. 4 or 6.
  • two of these tensioning elements 22 are assigned to the two mirror images of the longitudinal median plane L and the larger angle ⁇ including side faces 10, the third tensioning element 23", which is also designed as a pivotable clamping shoe, is arranged for tensioning one of the angles ⁇ which is smaller Side surfaces 11 are provided.
  • the other, opposite side surface 11 forms the support surface for a clamping element 43 in the form of a jaw which is articulated in the housing 1 and which can be adjusted in the housing 1 by means of a clamping means (for example a clamping screw 45).
  • a longitudinal groove 46 is provided for the articulated mounting, in which a housing-fixed bolt 47 is centered with almost no play.
  • the clamping elements 22 ", 23", 43 thus fit themselves when the plate 3 is clamped to the respective effective angle or ⁇ of the corresponding side surfaces 10 and 11 and consequently ensure a full-surface support, which results in a uniform pressure distribution of the clamping force. This maximizes the durability of the plate 3.
  • clamping element or clamping jaw 43 operatively connected to the clamping means 45 could be attached at a different location, i.e. be assigned to a different side surface 10 or 11 than shown in FIG. 8.

Landscapes

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

Abstract

L'invention concerne un dispositif de serrage (2'') prévu pour une plaque réfractaire (3) de système de fermeture coulissant, au niveau de la busette de coulée d'une cuve pour matière en fusion. Ladite plaque (3) comporte deux paires de faces latérales (10, 11) disposées de manière spéculaire par rapport à son plan longitudinal médian (L), sur lesquelles des éléments de serrage (22'', 23'', 43) placés dans un boîtier d'éléments coulissants (1) s'appliquent, par leurs faces de serrage. Les faces latérales (10, 11) disposées par rapport à un côté du plan médian longitudinal (L) forment un angle obtus ( gamma )entre elles. Trois des éléments de serrage se présentent sous forme de sabots de serrage (22'', 23''), montés pivotants dans le boîtier d'éléments de serrage (1). Le quatrième élément de serrage présente des mâchoires de serrage (43 ; 30), déplaçables en direction de la face latérale correspondante (10 et 11). Ce système permet d'obtenir un serrage simple et optimal de ladite plaque (3), sous l'effet de l'échauffement marqué intervenant pendant le service.
EP02791705A 2001-11-23 2002-11-23 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 Withdrawn EP1572396A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH217701 2001-11-23
CH21772001 2001-11-23
PCT/EP2002/013183 WO2004069448A2 (fr) 2001-11-23 2002-11-23 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

Publications (1)

Publication Number Publication Date
EP1572396A2 true EP1572396A2 (fr) 2005-09-14

Family

ID=32831739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02791705A Withdrawn EP1572396A2 (fr) 2001-11-23 2002-11-23 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

Country Status (3)

Country Link
US (1) US20050040572A1 (fr)
EP (1) EP1572396A2 (fr)
WO (1) WO2004069448A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707075B1 (de) * 2012-10-11 2021-01-15 Refractory Intellectual Property Gmbh & Co Kg Schiebeverschluss für ein Metallschmelze enthaltendes Gefäss.
CH710652B1 (de) * 2015-01-23 2019-06-28 Refractory Intellectual Property Gmbh & Co Kg Schiebeverschluss für einen Metallschmelze enthaltenden Behälter.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
JPH0237491Y2 (fr) * 1987-08-26 1990-10-11
JP2001505130A (ja) * 1996-08-05 2001-04-17 シュトピンク・アクティ―エンゲゼルシャフト 溶融金属を収容する容器の流出口における摺動式ゲート弁の耐火プレートおよび締付け装置
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004069448A3 *

Also Published As

Publication number Publication date
WO2004069448A2 (fr) 2004-08-19
WO2004069448A3 (fr) 2006-09-21
US20050040572A1 (en) 2005-02-24

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