EP0578680B1 - Verrou a coulisse pour recipients de fusion - Google Patents

Verrou a coulisse pour recipients de fusion Download PDF

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Publication number
EP0578680B1
EP0578680B1 EP92907357A EP92907357A EP0578680B1 EP 0578680 B1 EP0578680 B1 EP 0578680B1 EP 92907357 A EP92907357 A EP 92907357A EP 92907357 A EP92907357 A EP 92907357A EP 0578680 B1 EP0578680 B1 EP 0578680B1
Authority
EP
European Patent Office
Prior art keywords
slide
cartridge
guide
closure according
plate
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
EP92907357A
Other languages
German (de)
English (en)
Other versions
EP0578680A1 (fr
Inventor
Heinz Holtermann
Arno Luven
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.)
Technometal Gesellschaft fuer Metalltechnologie mbH
Original Assignee
Technometal Gesellschaft fuer Metalltechnologie mbH
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 Technometal Gesellschaft fuer Metalltechnologie mbH filed Critical Technometal Gesellschaft fuer Metalltechnologie mbH
Publication of EP0578680A1 publication Critical patent/EP0578680A1/fr
Application granted granted Critical
Publication of EP0578680B1 publication Critical patent/EP0578680B1/fr
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
    • 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
    • B22D41/24—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 characterised by a rectilinearly movable plate

Definitions

  • the invention relates to a slide closure for melt vessels with a base plate arranged in a stationary manner in a base cassette connected to the vessel and with a slide plate arranged linearly displaceable relative to the base plate and arranged in a slide cassette, the slide cassette being movable on guides connected to the base cassette and two symmetrically to the pouring opening arranged clamping members are provided for generating a pressure of the slide plate against the base plate.
  • a generic slide closure is described in DE-PS 32 08 101,
  • the slide plate is inserted into a support frame forming a slide cassette, which in turn is part of a separate slide carriage; the carriage is in turn guided in guides attached to a housing connected to the vessel and displaceable relative to the stationary base cassette.
  • the clamping elements for generating the pressure of the base plate and slide plate are integrated against each other in the slide carriage.
  • the known slide lock has the disadvantage that the slide lock has a complicated structure with a comparatively large number of individual parts, which, in addition to a correspondingly high outlay for the production of the slide lock and the spare parts inventory, has the particular disadvantage that the handling of the slide lock when replacing the wear parts to address and made of a refractory base and slide plate is expensive. So with the known slide closure after loosening the tensioning elements, the guides for the slide carriage have to be removed from the vessel-fixed housing, the associated housing has to be partially dismantled and then the entire slide unit has to be removed from the housing before the wearing parts in the form of the base plate and the slide plate for a substitution is accessible.
  • a comparable slide closure of another design is known from FR-A-2 308 448; with this slide closure, the slide plate is in a slide plate holder, which holder is in turn anchored in a carriage.
  • the carriage in turn is slidably guided in a frame that is firmly connected to the vessel, the frame as such being designed to be foldable on the vessel.
  • the frame is connected to the vessel by means of fixed screw connections.
  • the invention is therefore based on the object to simplify a generic slide closure with regard to its manufacture and maintenance, to facilitate the replacement of the slide as well as the base plate and to ensure uniform pressure of the plates against each other during operation of the slide closure.
  • the invention is embodied in the basic concept that the slide cassette has on its longitudinal sides parallel to the axis of displacement two rod-like guide sections which are guided in two guide blocks connected to the vessel-fixed base cassette on both sides of the displacement axis and symmetrically to the pouring opening, and that the guide blocks on the base cassette are opposite it are movably supported and accommodate the tensioning elements.
  • the slide cassette has recesses running on the associated longitudinal sides between its outer corners and that the guide sections extend between the receiving blocks formed by the recesses on the corners and in this area run through guide openings in the guide blocks.
  • the slide cassette does not have any parts for guiding that extend beyond its given size.
  • the displacement path of the slide cassette is defined at the same time, the receiving blocks forming the limit stop on the guide blocks during the displacement movement.
  • the guide sections arranged on the slide cassette are designed as separate guide rods which run through the guide openings of the guide blocks; at the same time, the slide cassette is detachably connected to one of the guide rods on the receiving blocks on at least one side.
  • the receiving blocks are slotted on the lock side on their side facing away from the vessel, and at the same time the guide rods have flats in their area corresponding to the dimensions of the receiving blocks, which are smaller Have a distance from each other as the dimension of the slots.
  • the guide rod is preferably provided on the lock side at one end with a locking lever which is fixed in the locked position of the slide cassette with the guide rod in a holder arranged on the slide cassette. This results in a very simple way, by rotating the guide rod on the lock side by means of the locking lever, to bring the flats of the guide rod into alignment with the slots in the receiving blocks, so that the slide cassette with the receiving blocks can be folded down from the guide rod.
  • the guide rod on the lock side in the associated receiving blocks of the slide cassette is arranged to be longitudinally displaceable and in the locked position with its flattened cross-section is partially in the receiving blocks.
  • the two guide blocks for holding the guide rods and thus the slide cassette are held on the bottom cassette by means of pressure bolts, the tensioning elements designed as disc springs being pretensioned between the respective bolt head of the pressure bolts and the associated guide block.
  • the guide blocks are additionally held against the bottom cassette by guide pins arranged in them, so that an angular position of the slider cassette against the bottom cassette is excluded.
  • the base cassette and slide cassette have openings in a manner known per se for receiving the base plate and slide plate, which are made of a refractory material, the base plate and the slide plate being designed in an identical manner.
  • the thickness of the plate made of refractory material which can be used as a base plate or slide plate, is somewhat larger than the height of the assigned openings in the base cassette or slide cassette, and this configuration ensures that the desired surface pressure mediated by the tensioning elements is exclusively realized on the bottom or slide plate and is not reduced by contact with other parts of the slide closure. At the same time, this measure reduces the friction to be overcome during the displacement movement, because only the base plate and slide plate made of a refractory material slide onto one another.
  • the slide cassette has a holder for the holder of an outlet sleeve on its side facing away from the vessel on, wherein the sleeve carrier can be fixed in the holder in the manner of a bayonet catch.
  • the sleeve carrier can be used to carry a protective plate to be arranged on the underside of the slide closure, which protects the slide closure from the effects of heat and splashes.
  • the protective plate can be an assembly aid for the sleeve carrier when it is fixed in the holder that a simple replacement of the outlet sleeve is ensured in this way.
  • a base plate 14 is fixedly connected, preferably welded, to the bottom of the melt vessel 10, which base plate also receives the base sleeve 12.
  • a base cassette 16 which has an opening 17 for receiving the base plate 18 made of a refractory material, is fixed in place on the base plate 14 via bolts 15.
  • two guide blocks 19 are held in a symmetrical arrangement on both sides of the pouring opening 13, each via a pressure pin 20 and two guide pins 21.
  • the guide blocks 19 can be moved along the holding and guiding elements 19, 20 against the bottom cassette 16 by between the bolt heads 22 and the guide blocks 19 supporting, designed as plate springs clamping members 23 are provided.
  • the guide pins 21 ensure a parallel alignment of the Guide blocks 19 to the bottom cassette 16, which is important for the mechanics of the slide closure, as will be described later; at the same time, the guide pins absorb restoring moments from the tensioning members 23.
  • the guide blocks 19 have guide openings 24 towards the pouring opening 13, in which guide rods 25 can be moved in a longitudinally movable manner.
  • the guide rods 25 are connected to the slide cassette 26 aligned parallel to the base cassette 16, so that the slide cassette 26 is held and guided in the guide blocks 19 via the guide rods 25.
  • the slide cassette 26 has recesses 27 on its long sides pointing towards the guide blocks 19, as a result of which receptacle blocks 28 for connecting the slide cassette 26 to the guide rods 25 are formed on the outer corners.
  • the slide cassette 26 is detachably arranged on one side of the associated guide rod 25, so that here there is a lock side 30, while the other guide rod 25 forms a hinge side 29 which the slide cassette 26 can be folded down.
  • the associated guide rod 25 is mounted to be longitudinally movable and has at one end a locking lever 31 which can be pivoted with the rotatably arranged guide rod 25 and is fixed in the latched position in a pocket 32 formed on the slide cassette 26.
  • the associated receiving blocks 28 are slotted on their side facing away from the melting vessel 10, and the guide rod 25 has a flattened area 33 over a region corresponding to the dimensions of the receiving blocks 28, the diameter of the guide rod 26 in the area of the flattened areas 33 being somewhat smaller than the width of the slots in the receiving blocks 28, so that the slots and the flattened areas are aligned Passage of the guide rod 25 through the receiving blocks 28 of the slide cassette 26 is given on the lock side 30.
  • the slide cassette 26 also has an associated opening 34, in which a slide plate 35 is inserted, the base plate 18 and slide plate 35 having an identical shape, so that the plates are mutually interchangeable and can also be used in the reversed state.
  • a holder 39 is also attached to the slide cassette 26, in which a sleeve carrier 36 can be fixed in the manner of a bayonet lock, which in turn carries an outlet sleeve 37.
  • a protective plate 38 is fastened to the sleeve carrier 36 and protects the slide from below from heat and splashes of the melt. As not shown further, the protective plate 38 can preferably be round and can be carried out in two steps, while at the same time it represents an assembly aid for the sleeve carrier 36 when changing the outlet sleeve 37.
  • the figures show the open position of the slide closure, in which the associated pouring openings in the perforated brick 11, the base plate 18, the slide plate 35 and the outlet sleeve 37 are aligned.
  • the slide cassette 26 is shown in FIG. 2 displaced upwards until the receiving blocks 28 located at a distance from the guide blocks 19 strike the guide blocks 19.
  • the slide plate 35 is displaced relative to the stationary base plate 18 in such a way that the pouring opening is covered in the base plate.
  • the movement of the slide cassette 26 can be initiated by means of mechanical or hydraulic actuation devices (not shown in detail), the relevant drive systems being set apart from the slide closure and to be connected to it in a few simple steps. Due to the good accessibility of the parts of the slide closure and the lack of a complex mechanism or slide arrangement, the weight of the parts to be moved is comparatively low, so that the drive systems need not be so complex.
  • the preload in the region of the guide blocks 19 must first be eliminated by loosening the two pressure bolts 20. Then, on the lock side 30, the locking lever 31 is lifted out of the pocket 32 which fixes it and pivoted by 90 degrees, as a result of which the flats 33 provided on the associated guide rod 25 are brought into alignment with the slots in the receiving blocks 28. The guide rod 25 is then axially displaced until the sections of the guide rod 25 provided with the flats 33 have completely entered the receiving blocks 28.
  • the slide cassette 26 can then be folded down on its opposite hinge side around the guide rod 25 located there are, so that now in the openings 17 in the bottom cassette 16 and 34 in the slide cassette 26 plates 18, 35 are freely accessible. After the corresponding change, the slide cassette is closed in reverse order and the lock side is locked, and after the pressure bolts 20 have been tightened again to the desired pretension, the slide lock is ready for operation again.

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

Abstract

Un verrou à coulisse est décrit pour récipients de fusion ayant une plaque de fond fixée à demeure dans une cassette de fond reliée au récipient et une plaque coulissante située dans une cassette coulissante et linéairement mobile par rapport à la plaque de fond. La cassette coulissante est mobile sur des guides reliés à la cassette de fond et deux organes de serrage disposés symétriquement par rapport à l'orifice de coulée sollicitent la plaque coulissante contre la plaque de fond. Afin de simplifier la structure d'un tel verrou et de faciliter l'accès aux plaques réfractaires, la cassette coulissante (26) comprend deux sections allongées de guidage (25) qui s'étendent sur ses côtés longitudinaux parallèles à l'axe de déplacement. Les sections de guidage (25) sont guidées dans deux blocs de guidage (19) disposés des deux côtés de l'axe de déplacement, symétriquement par rapport à l'orifice de coulée (13), et reliés à la cassette de fond (16) fixée au récipient. Les blocs de guidage 919) sont montés mobiles sur la cassette de fond (16) et reçoivent les organes de serrage (23).

Claims (15)

  1. Fermeture à coulissement pour récipients de fusion, avec une plaque de fond, disposée localement fixe dans une cassette de fond reliée au récipient et avec une plaque de coulissement, mobile linéairement par rapport à la plaque de fond, disposée dans une cassette de coulissement, la cassette de coulissement étant mobile sur des guidages reliés à la cassette de fond et deux organes de serrage, disposés symétriquement par rapport à l'ouverture d'éjection de sortie de coulée, étant prévus pour produire une pression de la plaque de coulissement contre la plaque de fond, caractérisé en ce que la cassette de coulissement (26) présente sur ses faces longitudinales, parallèles à l'axe de déplacement, deux tronçons de guidage (25) en forme de tige, qui sont guidés dans deux blocs de guidage (19) disposés des deux côtés de l'axe de déplacement et symétriquement par rapport à l'ouverture de sortie de coulée (13) et reliés à la cassette de fond (16) fixe par rapport au récipient, et en ce que les blocs de guidage (19) sont maintenus sur la cassette de fond (16), avec une mobililité par rapport à celle-ci et reçoivent en eux les organes de serrage (23).
  2. Fermeture à coulissement selon la revendication 1, caractérisé en ce que la cassette de coulissement (26) présente, sur les faces longitudinales associées, des retraits (27) s'étendant entre ses angles extérieurs, et en ce que les tronçons de guidage (25) s'étendent entre les blocs de réception (28), de la cassette, constitués aux angles par les retraits (27), et s'étendent dans cette zone dans des ouvertures de guidage (24) ménagées dans les blocs de guidage (19).
  3. Fermeture à coulissement selon la revendication 2, caractérisé en ce que la course de déplacement de la cassette de coulissement (26) est fixée par l'étendue des retraits (27) dans la cassette de coulissement (26) et les blocs de réception (28) constituent sur les blocs de guidage (19) la butée de limitation lors du mouvement de coulissement.
  4. Fermeture à coulissement selon l'une des revendications 1 à 3, caractérisé en ce que les tronçons de guidage (25) de la cassette de coulissement (26) sont réalisés sous forme de tiges de guidage maintenues dans les blocs de guidage (19) et la cassette de coulissement (26) est reliée de façon amovible aux blocs de réception (28) associés, à l'aide d'au moins une tige de guidage (25).
  5. Fermeture à coulissement selon l'une des revendications 1 à 4, caractérisé en ce que les tiges de guidage (25) sont disposées de façon à pouvoir tourner par rapport à la cassette de coulissement (26) et en ce que la cassette de coulissement (26) après desserrement de la au moins une liaison amovible peut être rabattue, à l'aide d'une tige de guidage (côté serrure 30), autour de l'autre tige de guidage (côté charnière 29).
  6. Fermeture à coulissement selon la revendication 5, caractérisé en ce que la tige de guidage (25) présente sur le côté serrure (30), sur une de ses extrémités libres, un levier d'arrêt (31) qui est fixé, dans la position encliquetée du côté serrure (30), dans une poche (32) disposée sur la cassette de coulissement (26).
  7. Fermeture à coulissement selon la revendication 5 ou 6, caractérisé en ce que, du côté serrure (30), les blocs de réception (28) sont fendus sur leurs faces opposées au récipient de fusion (10), et en ce que la tige de guidage (25) présente, dans sa zone correspondant aux dimensions des blocs de réception (28) associés, des aplatissements (33), avec un espacement inférieur à la dimension de la fente ménagée dans les blocs de réception (28).
  8. Fermeture à coulissement selon l'une des revendications 5 à 7, caractérisé en ce que la tige de guidage (25) est disposée d'une manière à pouvoir être déplacée en coulissement longitudinalement du côté serrure (30) dans les blocs de réception (28) associés de la cassette de coulissement (26) et se trouve partiellement dans les blocs de réception (28), une fois dans la position encliquetée, par l'intermédiaire d'une section transversale ne présentant aucun aplatissement.
  9. Fermeture à coulissement selon l'une des revendications 1 à 8, caractérisé en ce que les deux blocs de guidage (19) sont fixés sur la cassette de fond (16) par des boulons de pressage (20), et en ce que les organes de serrage (23), réalisés sous forme de ressorts-disques, prennent appui, avec une précontrainte, entre la tête de boulon (22) respective et le bloc de guidage (19).
  10. Fermeture à coulissement selon la revendication 5 ou 6, caractérisé en ce que deux boulons de pressage (20) sont prévus avec l'organe de pressage (23), symétriquement par rapport à l'ouverture de sortie de coulée (13), l'axe de liaison entre les boulons de pressage (20) coupant l'axe de déplacement de la cassette à coulisse (26), en faisant un angle droit.
  11. Fermeture à coulissement selon l'une des revendications 1 à 10, caractérisé en ce que, des deux côtés des boulons de pressage (20), chaque bloc de guidage (19) est guidé et positionné par l'intermédiaire d'une tige de guidage (21) parallèlement par rapport à l'axe de déplacement de la cassette à coulisse (26).
  12. Fermeture à coulissement selon l'une des revendications 1 à 11, caractérisé en ce que la plaque de fond (18) et la plaque de coulissement (35) sont susceptibles d'être insérées dans des ouvertures (17, 34) associées de la cassette de fond (16) et de la cassette de coulissement (26) et présentent une configuration identique.
  13. Fermeture à coulissement selon l'une des revendications 1 à 12, caractérisé en ce que l'épaisseur de la plaque de fond et de la plaque de coulissement (18, 35) est un peu supérieure à la hauteur des ouvertures (17, 34) associées ménagées dans la cassette de fond (16) et la cassette de coulissement (26), pour recevoir les plaques (18, 35) constituées d'un matériau réfractaire.
  14. Fermeture à coulissement selon l'une des revendications 1 à 13, caractérisé en ce que la cassette de coulissement (26) présente, sur sa face opposée au récipient de fusion (10), une fixation (29) destinée à un porte-douille (36), prévu pour une douille d'évacuation (37) disposée au-dessus de la plaque de coulissement (35) et dans laquelle le porte-douille (36) peut être fixé à la façon d'une fermeture à baïonnette.
  15. Fermeture à coulissement selon la revendication 14, caractérisé en ce que le porte-douille (36) porte à son extrémité inférieure une plaque de protection (38) recouvrant la face inférieure de la fermeture à coulissement.
EP92907357A 1991-04-06 1992-04-03 Verrou a coulisse pour recipients de fusion Expired - Lifetime EP0578680B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4111211 1991-04-06
DE4111211 1991-04-06
PCT/DE1992/000283 WO1992017298A1 (fr) 1991-04-06 1992-04-03 Verrou a coulisse pour recipients de fusion

Publications (2)

Publication Number Publication Date
EP0578680A1 EP0578680A1 (fr) 1994-01-19
EP0578680B1 true EP0578680B1 (fr) 1995-12-20

Family

ID=6428993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92907357A Expired - Lifetime EP0578680B1 (fr) 1991-04-06 1992-04-03 Verrou a coulisse pour recipients de fusion

Country Status (5)

Country Link
US (1) US5421563A (fr)
EP (1) EP0578680B1 (fr)
JP (1) JP2668286B2 (fr)
DE (1) DE59204770D1 (fr)
WO (1) WO1992017298A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1261973B (it) * 1992-12-15 1996-06-11 Dispositivo per l'azionamento automatico di scaricatori a cassetto,in generale per contenitori di metallo liquido
BR9608316A (pt) * 1995-06-07 1999-06-15 Uss Eng & Consult Comporta deslizante
CA2242501C (fr) * 1997-07-16 2009-06-16 Werner Keller Robinet-vanne a lunette pour un recipient contenant du metal en fusion
ATE277707T1 (de) * 1998-07-26 2004-10-15 Stopinc Ag Schiebeverschluss für einen metallschmelze enthaltenden behälter
WO2004069449A2 (fr) * 2003-02-03 2004-08-19 Stopinc Aktiengesellschaft Dispositif de fermeture coulissant destine a un recipient contenant un metal en fusion, de preference a un convertisseur
CH702467B1 (de) * 2009-12-21 2021-07-15 Stopinc Ag Schiebeverschluss für einen metallurgischen Behälter.
US8783528B1 (en) 2010-08-27 2014-07-22 J.W. Hicks, Inc. Slide gate for casting operations
CH710652B1 (de) * 2015-01-23 2019-06-28 Refractory Intellectual Property Gmbh & Co Kg Schiebeverschluss für einen Metallschmelze enthaltenden Behälter.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3352465A (en) * 1965-05-06 1967-11-14 United States Steel Corp Refractory closure member for bottom pour vessels
CH449861A (de) * 1967-02-24 1968-01-15 Metacon Ag Giesseinrichtung
BE756374A (fr) * 1969-09-24 1971-03-18 Uss Eng & Consult Mecanisme de support pour tiroir obturateur
IE36371L (en) * 1971-06-07 1972-12-07 Uss Eng & Consult Gate valve for a foundry ladle
IT1028952B (it) * 1975-04-24 1979-02-10 Sanac Spa Dispositivo di intercettazione a cassetto particolarmente adatto per grandi contenitori di metallo fuso
DE2652593C2 (de) * 1976-11-19 1979-05-03 Zimmermann & Jansen Gmbh, 5160 Dueren Schieberverschluß für eine Gießpfanne
SU761138A1 (ru) * 1978-10-19 1980-09-07 Evgenij V Sinolitsin Затвор сталеразливочного ковша 1
CH653933A5 (de) * 1981-05-19 1986-01-31 Stopinc Ag Schiebeverschluss fuer schmelzegefaesse.
BR8707428A (pt) * 1986-08-20 1988-11-01 Stopinc Ag Fecho corredico no bocal de despejo de um vaso contendo metal fundido

Also Published As

Publication number Publication date
DE59204770D1 (de) 1996-02-01
US5421563A (en) 1995-06-06
JP2668286B2 (ja) 1997-10-27
JPH06505921A (ja) 1994-07-07
WO1992017298A1 (fr) 1992-10-15
EP0578680A1 (fr) 1994-01-19

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