EP0791419B1 - Dispositif de fermeture coulissante pour ouvrir et fermer le canal d'évacuation d'un récipient de coulée contenant des métaux fondus - Google Patents

Dispositif de fermeture coulissante pour ouvrir et fermer le canal d'évacuation d'un récipient de coulée contenant des métaux fondus Download PDF

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Publication number
EP0791419B1
EP0791419B1 EP97100536A EP97100536A EP0791419B1 EP 0791419 B1 EP0791419 B1 EP 0791419B1 EP 97100536 A EP97100536 A EP 97100536A EP 97100536 A EP97100536 A EP 97100536A EP 0791419 B1 EP0791419 B1 EP 0791419B1
Authority
EP
European Patent Office
Prior art keywords
sliding gate
steel frame
plate
pressure plate
mortar layer
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
EP97100536A
Other languages
German (de)
English (en)
Other versions
EP0791419A1 (fr
Inventor
Heinz-Dieter Hannes
Rolf Himmler
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.)
Zimmermann and Jansen GmbH
Original Assignee
Zimmermann and Jansen GmbH
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 Zimmermann and Jansen GmbH filed Critical Zimmermann and Jansen GmbH
Publication of EP0791419A1 publication Critical patent/EP0791419A1/fr
Application granted granted Critical
Publication of EP0791419B1 publication Critical patent/EP0791419B1/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
    • B22D41/28—Plates 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
    • B22D41/40—Means for pressing the plates together

Definitions

  • the invention relates to a slide closure for opening and Closing the outlet channel of a casting vessel for metallic Melting, especially steel, according to the preamble of Claim 1.
  • the slide closure includes one Slider plate 1 with a central outlet opening 10, which in Open position with the outlet channel of the casting vessel corresponds, one on the underside of the slide plate attached pouring spout 6 with a made of refractory (FF) material existing pipe section 11 and a trough-like Steel frame 2, within which the slide plate 1 is immovable is held.
  • the fixation of the slide plate 1 within the Steel frame 2 is by a between slide plate and Steel frame formed layer of refractory mortar or the same ceramic casting compound guaranteed.
  • the corresponding Mortar layer is in FIG. 1 with the reference number 3 featured. Grab on the underside of the steel frame 2 so-called thermodynamic spring elements. These serve to do this, the slide plate 1 in close contact with one of the To keep the bottom of the casting vessel arranged head plate.
  • thermodynamic spring elements are shown in FIG Reference number 4 provided.
  • Figure 2 shows one in that described above Way laterally deflected pouring spout.
  • Figure 3 shows one Slider locks according to Figure 2, in Cut open lengthways. 1 the fracture line 12 described can be seen very well there.
  • GB-A 2 163 079 is a slide closure with a Pressure plate known.
  • the pressure plate is with a border, a ring or other engagement devices, to secure the upper area of a pouring spout.
  • DE-A 43 43 751 describes a slide closure, to open and close the outlet channel of a casting vessel is intended for metallic melts.
  • the slide lock includes one relative to one at the bottom of the casting vessel arranged head plate sliding slide plate, molded on the underside of a spout with flange is.
  • the flange extends over the bottom and at least part of the side edge of the slide plate and is surrounded by a steel frame.
  • the present Invention Based on the prior art according to FIG. 1, the present Invention the task of a slide closure to improve such that a buckling of the steel frame when lateral forces are applied to the pouring spout and thus a break of the pouring spout in the transition area to Steel frame is prevented, with the novel slide lock can easily be used in conventional systems should.
  • This task is characterized by the characteristics of the Claim 1 solved.
  • the steel frame floor or. on the underside by a pressure plate with a central recess for the passage of the pipe section of the pouring spout is reinforced, and that the thickness of the layer of FF mortar or the like reduced to one dimension on the bottom or underside is such that the height of the slide plate, steel frame, Mortar layer and pressure plate that of a conventional one Construction consisting of slide plate, steel frame and corresponds to mortar layer.
  • the subject of registration stands out due to the combination its distinctive features compared to the closest Prior art advantageous in several ways out.
  • the stability of the steel frame is particularly opposite Forces acting laterally on the pouring spout are increased.
  • the pressure forces exerted on the steel frame by spring elements are evenly distributed.
  • the additional Pressure plate has the slide closure according to the invention same installation height as conventional slide locks.
  • the essence of the present invention therefore lies in the arrangement a pressure plate on the underside of the steel frame.
  • This pressure plate has a central recess for the Passage of the pipe section of the pouring spout.
  • the Pressure plate ensures an even pressure distribution the through the thermodynamic spring elements 4 exerted compressive forces the steel frame and thus also on the slide plate 1.
  • the pressure plate mentioned bulging the bottom of the Steel frame 2 to the outside and inside.
  • the result is that too the pouring spout in spite of lateral forces original position remains, d. H. no longer sideways is deflected. This in turn has the consequence that a break of the Pouring spout in the transition area to the steel frame safely is avoided.
  • neither Bulge 5 and compression 7 on the underside of the steel frame 2 still the break 12 in the transition area between pouring spouts and steel frame 2 occur according to Figure 1.
  • the mortar layer 3 between slide plate 1 and Steel frame 2 reduced to a minimum, preferably to a thickness that is about 4 to 7%, especially about 6% of the Total height of slide plate, mortar layer, steel frame and Pressure plate is.
  • This small layer thickness also contributes Stability of the slide lock at.
  • a dent in the Steel frame inside or a compression 7 of the steel frame 1 is due to the minimum thickness of the Mortar layer no longer possible. There is material which could be displaced accordingly.
  • the stability of the overall construction can also be increased thereby increase that the pipe section of the pouring spout with is surrounded by a steel jacket that extends through the pressure plate and through the steel frame to the bottom of the Slider plate extends and directly on this supports.
  • FIG. 4 shows an inventive slide closure in Longitudinal section similar to that of Figure 1, the same Parts marked with the same reference numerals as in Figure 1 are.
  • the slide closure according to FIG. 4 also a slide plate 1 with outlet opening 10, a the spout 6 associated with the outlet opening 10 Pipe section 11, and a trough-like steel frame 2, within which the slide plate 1 is placed.
  • the Outlet nozzle 6 or its pipe section 11 is from one Surround steel jacket 13, which through the steel frame 2nd through to the underside of the slide plate 1 below Support on this extends.
  • the steel jacket 13 is the others welded to the steel frame 2.
  • the Welded joint along the edge of the opening in the bottom of the trough-like steel frame 2 through which the pouring spout extends with the steel jacket 13, is with the reference number 9 marked.
  • a pressure plate 8 made of steel is arranged, against which the thermodynamic elements 4 press in use. Through the pressure plate 8, the corresponding spring force evenly on the bottom of the steel frame 2 and thus on the Distributed slide plate 1. Furthermore prevents the Pressure plate 8 bulging or upsetting of the steel frame 2, or its bottom, as described with reference to Figure 1.
  • the Stability of the pouring spout 6 increased in that the Steel jacket 13 both through the pressure plate 8 and through the steel frame 2 to the bottom of the Slide plate 1 extends supported on this.
  • the thickness of the mortar layer between the bottom of the Slider plate 1 and the bottom of the tub-like steel frame 2 reduced to a minimum. This also improves the stability of the Pour spout against lateral deflection promoted, such as at the beginning.
  • the thickness is preferably Mortar layer 3 about 4 to 7%, in particular about 6% of the Total height of slide plate 1 including mortar layer 3, Steel frame 2 and pressure plate 8.
  • the pressure plate 8 has one Thickness that is about 20 to 28%, especially about 23 to 25% the total height of the slide plate including the mortar layer, Steel frame and pressure plate is.
  • the minimum thickness of the mortar layer 3 is due to the maximum Size of the granular aggregate of the mortar or one corresponding ceramic casting compound defined.
  • the thickness of the mortar layer 3 is on the underside reduced to a measure such that the height of the slide plate 1, steel frame 2, mortar layer 3 and pressure plate 8 of those a conventional construction consisting of a slide plate, Steel frame and mortar layer according to Figure 1 corresponds. On this way it is not necessary to create a new one To provide valve housing to the invention Insert slide lock.
  • the resulting reduction the thickness of the mortar layer 3 also has the advantage that no mass for displacement for a lateral deflection the pouring spout 6 is available. Accordingly carries the reduced thickness of the mortar layer 3 in addition to increasing the lateral stability of the pouring spout 6 at.
  • the pressure plate 8 has for the passage of the pouring spout 6 a central opening, the diameter of which is slightly larger than the outer diameter of the pouring spout 6, by approximately 1 to 3 %. This becomes a condition caused by thermal expansion Squeeze between the pressure plate 8 and the outer periphery of the Pouring spout 6 avoided.
  • the pressure plate 8 is preferably on the outside of the bottom of the tub-like steel jacket 2 spot welded. In principle, it is also conceivable that the pressure plate 8 is only loose to push over the pouring spout 6, because in the assembled Condition or within the valve body is the Pressure plate 8 through the thermodynamic spring elements 4 the underside of the tub-like steel jacket 2 held. All features disclosed in the registration documents are claimed as essential to the invention insofar as they are individually or are new in combination with the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Special Wing (AREA)

Claims (9)

  1. Fermeture coulissante pour ouvrir et fermer le canal d'évacuation d'un récipient de coulée contenant des métaux fondus ayant une plaque coulissante (1) sur le dessous de laquelle est fixée une tubulure de coulée (6) qui comprend un segment tubulaire (11) en matériau réfractaire, et laquelle plaque coulissante est enchâssée dans un cadre en acier en forme de cuvette (2), la fixation de la plaque coulissante (1) à l'intérieur du cadre en acier (2) étant assurée par une couche (3) en mortier réfractaire ou pâte céramique de coulage analogue réalisée entre la plaque coulissante et le cadre en acier, et le segment tubulaire (11) de la tubulure de coulée (6) étant entouré par une enveloppe en acier (13) qui est reliée par une soudure annulaire (9) au cadre en acier (2), au niveau du passage du segment tubulaire (11) à travers celui-ci,
    caractérisée en ce que le cadre en acier (2) est renforcé au fond ou sur le dessous par une plaque de compression (8) ayant un évidement central pour le passage du segment tubulaire (11) de la tubulure de coulée (6), et en ce que l'épaisseur de la couche (3) en mortier réfractaire ou analogue est réduite au fond ou sur le dessous à une dimension telle que la hauteur de la plaque coulissante (1), du cadre en acier (2), de la couche de mortier (3) et de la plaque de compression (8) réunis correspond à celle d'une construction traditionnelle composée d'une plaque coulissante, d'un cadre en acier et d'une couche de mortier.
  2. Fermeture coulissante selon la revendication 1, caractérisée en ce que la fermeture coulissante est prévue pour un récipient de coulée contenant de l'acier fondu.
  3. Fermeture coulissante selon la revendication 1 ou 2, caractérisée en ce que l'épaisseur de la couche de mortier (3) est comprise entre 4 et 7 % de la hauteur totale de la plaque coulissante (1) avec la couche de mortier (3), le cadre en acier (2) et la plaque de compression (8).
  4. Fermeture coulissante selon la revendication 1 ou 2, caractérisée en ce que l'épaisseur de la couche de mortier (3) est égale à 6 % de la hauteur totale de la plaque coulissante (1) avec la couche de mortier (3), le cadre en acier (2) et la plaque de compression (8).
  5. Fermeture coulissante selon l'une des revendications 1 à 4, caractérisée en ce que l'épaisseur de la plaque de compression (8) est comprise entre 20 et 28 % de la hauteur totale de la plaque coulissante (1), de la couche de mortier (3), du cadre en acier (2) et de la plaque de compression (8) réunis.
  6. Fermeture coulissante selon les revendications 1 à 4, caractérisée en ce que l'épaisseur de la plaque de compression (8) est comprise entre 23 et 25 % de la hauteur totale de la plaque coulissante (1), de la couche de mortier (3), du cadre en acier (2) et de la plaque de compression (8) réunis.
  7. Fermeture coulissante selon l'une des revendications 1 à 6, caractérisée en ce que l'enveloppe en acier (13) autour du segment tubulaire (11) de la tubulure de coulée (6) s'étend à travers le fond du cadre en acier en forme de cuvette (2) jusque sur le dessous de la plaque coulissante (1) .
  8. Fermeture coulissante selon l'une des revendications 1 à 7, caractérisée en ce que l'enveloppe en acier (13) supporte directement la plaque coulissante (1).
  9. Fermeture coulissante selon l'une des revendications 1 à 8, caractérisée en ce que l'ouverture centrale de la plaque de compression (8) présente un diamètre intérieur qui est supérieur de 1 à 3 % au diamètre extérieur du segment tubulaire (11) de la tubulure de coulée (6).
EP97100536A 1996-02-22 1997-01-15 Dispositif de fermeture coulissante pour ouvrir et fermer le canal d'évacuation d'un récipient de coulée contenant des métaux fondus Expired - Lifetime EP0791419B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19606686 1996-02-22
DE19606686A DE19606686A1 (de) 1996-02-22 1996-02-22 Schieberverschluß zum Öffnen und Schließen des Auslaufkanals eines Gießgefäßes für metallische Schmelzen

Publications (2)

Publication Number Publication Date
EP0791419A1 EP0791419A1 (fr) 1997-08-27
EP0791419B1 true EP0791419B1 (fr) 2000-08-23

Family

ID=7786155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97100536A Expired - Lifetime EP0791419B1 (fr) 1996-02-22 1997-01-15 Dispositif de fermeture coulissante pour ouvrir et fermer le canal d'évacuation d'un récipient de coulée contenant des métaux fondus

Country Status (4)

Country Link
EP (1) EP0791419B1 (fr)
AT (1) ATE195679T1 (fr)
DE (2) DE19606686A1 (fr)
ES (1) ES2151687T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757219A (fr) 1969-10-13 1971-03-16 Interstop Ag Fermeture a tiroir de decharge pour des cuves de coulee de metaux
AU502205B2 (en) * 1975-02-25 1979-07-19 Kurosaki Refractories Co. Ltd. + Nippon Steel Corp. Assembling a sliding gate
US4561573A (en) * 1982-08-20 1985-12-31 Flo-Con Systems, Inc. Valve and replaceable collector nozzle
DE3334438C1 (de) * 1983-09-23 1984-07-12 Zimmermann & Jansen GmbH, 5160 Düren Handbetaetigungsmechanismus fuer einen Giesspfannenschieberverschluss
US4582232A (en) * 1984-06-19 1986-04-15 Flo-Con Systems, Inc. Valve, clamp, refractory and method
DE4343751A1 (de) * 1993-12-21 1995-06-22 Zimmermann & Jansen Gmbh Schieberverschluß
ES2122857B1 (es) * 1995-03-17 1999-07-01 Deguisa S A Cierre de corredera para controlar el flujo de metal fundido desde un recipiente de colada.

Also Published As

Publication number Publication date
ATE195679T1 (de) 2000-09-15
EP0791419A1 (fr) 1997-08-27
DE19606686A1 (de) 1997-08-28
ES2151687T3 (es) 2001-01-01
DE59702224D1 (de) 2000-09-28

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