EP0621097A1 - Keramischer Bausatz für einen Giessverschluss und Verfahren zum Wechselen desselben - Google Patents

Keramischer Bausatz für einen Giessverschluss und Verfahren zum Wechselen desselben Download PDF

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Publication number
EP0621097A1
EP0621097A1 EP93401009A EP93401009A EP0621097A1 EP 0621097 A1 EP0621097 A1 EP 0621097A1 EP 93401009 A EP93401009 A EP 93401009A EP 93401009 A EP93401009 A EP 93401009A EP 0621097 A1 EP0621097 A1 EP 0621097A1
Authority
EP
European Patent Office
Prior art keywords
plate
refractory
movable
fixed
shutter
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.)
Granted
Application number
EP93401009A
Other languages
English (en)
French (fr)
Other versions
EP0621097B1 (de
Inventor
François Noel Richard
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.)
Vesuvius France SA
Original Assignee
Vesuvius France SA
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 Vesuvius France SA filed Critical Vesuvius France SA
Priority to ES93401009T priority Critical patent/ES2117110T3/es
Priority to EP93401009A priority patent/EP0621097B1/de
Priority to AT93401009T priority patent/ATE163583T1/de
Priority to DE69317260T priority patent/DE69317260T2/de
Priority to US08/214,287 priority patent/US5388733A/en
Priority to BR9404969A priority patent/BR9404969A/pt
Priority to PCT/EP1994/001212 priority patent/WO1994023864A2/en
Priority to AU66793/94A priority patent/AU667275B2/en
Priority to JP52277294A priority patent/JP3335357B2/ja
Priority to CN94190196A priority patent/CN1057717C/zh
Priority to RU94046377A priority patent/RU2117552C1/ru
Priority to CA002137373A priority patent/CA2137373A1/en
Priority to MXPA94002806A priority patent/MXPA94002806A/es
Publication of EP0621097A1 publication Critical patent/EP0621097A1/de
Application granted granted Critical
Publication of EP0621097B1 publication Critical patent/EP0621097B1/de
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 set of refractory elements, in particular for a pouring shutter, said pouring shutter comprising a metal frame mounted on a metallurgical container, at least one fixed refractory plate, comprising at least one pouring orifice, at least one movable refractory plate, comprising at least one pouring orifice, at least one collecting nozzle made integral with the movable plate, displacement means for moving said at least one movable plate relative to said at least one fixed plate so as to control the covering the orifice of the fixed plate and the movable plate; pressure means which make it possible to clamp said at least one movable plate against said at least one fixed plate.
  • the metal parts of the shutter generally have a lifespan of several hundred, or even several thousand flows.
  • the refractory elements fixed and mobile plates, as well as the pouring nozzle
  • each refractory element is changed individually.
  • the collecting nozzle can be reached from outside the metal frame, but access to the plates to be changed requires opening this metal frame.
  • the flow shutter has a door mounted on hinges. This door can be opened to give access to the refractories.
  • Each refractory plate is removed individually and replaced by a new plate (with or without a metal casing). This method is well suited when the refractory elements to be handled are light enough that it is easy to replace them manually and provided that the access and ambient conditions allow the operator to access them easily and without danger .
  • each refractory element can reach a weight of several tens of kilos.
  • the change of refractory elements must be carried out on site under conditions very difficult for the operator, in particular because of the temperature. These conditions are further aggravated since one cannot generally wait for the shutter to cool down because the time required to change plates, which involves production stoppage and therefore loss, must be reduced to a minimum. The working conditions are therefore particularly harsh.
  • the complete casting shutter is removed from the container and replaced by a new shutter containing new refractories.
  • This method also has many drawbacks. Indeed the complete shutter weighs much more than the refractory to exchange, for example twenty times more. Thus, if the refractories weigh 100 kg, it will be necessary to handle a two-ton element, which implies powerful tools and increased handling time.
  • the present invention relates to a set of refractory elements comprising the refractory elements to be exchanged in a flow shutter which overcomes the drawbacks of the two methods described above. It also relates to a method for performing the replacement of this set of refractory elements.
  • the set of refractory elements according to the invention is characterized in that the collecting nozzle is secured to the movable plate and in that said at least one fixed refractory plate and said at least one movable refractory plate are capable of being linked between them so as to constitute a clearance which can be introduced into and / or removed from the shutter in a single operation.
  • the method for replacing the set of refractory elements of a pouring shutter comprising a metal frame mounted on a metallurgical container, at least one fixed refractory plate comprising at least one orifice, at least one mobile refractory plate comprising at least an orifice, displacement means for moving the movable plate relative to the fixed plate so as to control the covering of the orifice of the fixed plate and of the movable plate; pressure means which make it possible to clamp the movable plate against the fixed plate is characterized in that one sets up and / or removes the refractory clearance in a single operation.
  • a first step the set of used refractories is removed in a single operation, and in a second step, a new set of new refractories is replaced.
  • a single gripper and a single movement are sufficient, whereas according to the prior art, a gripper and a specific movement by refractory element were necessary.
  • the handling time is greatly reduced because the handling of each of the elements is replaced by a single overall handling. Automation is made easier by the uniqueness of the movement. The number of manipulations to be performed is reduced in a ratio of 2 to 3.
  • FIG. 2 a sectional view of the slide valve shutter 10 mounted on the converter 1.
  • This shutter consists of a metal frame 12 fixed on the outer wall of the converter.
  • this frame there is a set of two plates, namely a fixed plate 14 and a movable plate 16.
  • Each of these plates has an orifice, respectively 14a, 16a for the passage of the metal.
  • Pressure means make it possible to press the movable plate 16 against the fixed plate 14 and the latter against a plate 36 mounted in a recess in the frame 12. These pressure means will be described in more detail with reference to FIG. 3.
  • the fixed plate is placed in a frame, known as the fixed plate drive frame 20, and the movable plate in a drive frame 22 of the movable plate 16.
  • the rod 44 of the jack is retained in a housing of the frame d drive of the movable plate 22.
  • the jack makes it possible to move the movable plate on the fixed plate.
  • the shutter comprises a total of three plates, namely the junction plate 36, the fixed plate 14 and the mobile plate 16. But only the fixed plates 14 and mobile 16 are plates of work which support erosion on contact with liquid metal. On the contrary, the junction plate 36 does not see the steel in the sense that it is only changed when the converter 1 is empty.
  • the drawer shutter has only two working plates in addition to the junction plate, it could include more, for example three or more.
  • set of refractory elements is meant, in the example shown, the fixed plate 14, possibly surrounded by a metal casing 38, and the movable plate 16 associated with the pouring nozzle 42, the plate 16 and the pouring nozzle 42 being mounted in a metal casing 40.
  • the set of refractories does not include the junction plate 36 fixed to the internal nozzle 36a.
  • the envelope 40 assembles the movable plate 16 and the nozzle 42. It provides the assembly with sufficient rigidity to serve as a bearing surface for pressure means which will be described later. It further comprises a shield 40a which protects against radiation and projections.
  • FIG 3 a sectional view of the embodiment of Figure 2 along a perpendicular plane.
  • This figure shows the detail of the pressure means, generally designated by the general reference 26. They comprise a lever 100. At one end the lever is fixed to a torsion bar 102 shown in cross section. At its other end, the lever 100 is applied to a slide 104. The slide 104 is fixed to the metal casing 40. The force of the lever is transmitted to the plate 16, then to the plate 14 which is supported on the plate of junction 36. A static sealing is thus ensured between the fixed plate 14 and the junction plate 36 and a dynamic sealing is ensured between the plates 14 and 16.
  • the means for clamping the fixed plate against the junction surface of the orifice casting are the same as the pressure means for pressing the fixed plate 14 against the movable plate 16. The same means therefore fulfill two distinct functions.
  • the metal casing 38 which surrounds the fixed plate 14 comprises a housing 38a.
  • a tongue 106 is fixed on the metal casing 40 which surrounds the movable plate 16 and the collecting nozzle 42.
  • This tongue 106 comes to lock in the housing 38a.
  • the tongue 106 and the housing 38 constitute the means which make it possible to link the refractory elements so that they form a play which can be introduced and / or removed in one piece, and consequently, in a single operation of the shutter 10.
  • the set includes not only the fixed and movable plates themselves, but also the envelopes 38 and 40 and the nozzle 42. It is this assembly which is introduced and / or removed in one operation. It is true that the weight to be handled is increased compared to the weight of the refractories alone. However, this increase in weight remains reasonable.
  • FIG. 2 we will now describe in detail the means for securing the drive frame 20 of the fixed plate either with the frame 1 or with the drive frame of the movable plate 22.
  • These means are constituted by a latch with 2 positions 50.
  • This lock is mounted on the drive frame 20 of the fixed plate. In a first position, shown in Figure 1, it enters a housing 51 of the frame 2. In its other position it enters a housing 3 provided in the drive frame 22 of the movable plate. In the first position it immobilizes the drive frame of the fixed plate relative to the frame and, in its second position, relative to the drive frame of the movable plate.
  • the cylinder has a sufficient stroke to move the assembly of the two frames 20 and 22 sufficiently to release the set of refractory elements from the grip of the pressure means of the fixed plate against the junction surface of the pouring orifice.
  • the same means namely the cylinder successively performs two distinct functions.
  • it allows to move the movable plate on the fixed plate (first position of the latch 50).
  • it is used during the extraction of the part to change the establishment of a new fixed plate.
  • the lock is placed in its second position, which allows to move in one piece the drive frame of the fixed plate and the drive frame of the movable plate secured together by the lock 50.
  • the game of refractory to change is moved at the same time as frames 20 and 22.
  • FIG 4 the drawer of Fig 3 in the open position.
  • the latch 50 is placed in said second position in which it secures the drive frame 20 of the fixed plate 14 with the drive frame 22 of the movable plate 16.
  • the jack 28, the rod 44 of which is connected at the carriage 22 for driving the movable plate was used to push the assembly constituted by the two drive frames (fixed and movable) and the plates housed in the openings of these frames (fixed plate 14 and movable plate 16 ). This movement has been continued sufficiently so that the set of refractories is entirely freed from the action of pressure means 26.
  • the set of refractories can be removed freely without having to open a door as this is generally done in the devices of the prior art. It is not necessary to make any connection or disconnection because the cylinder rod remains fixed, during these operations, on the drive frame of the movable plate.
  • the assembly to be changed constituted as previously said of the fixed refractory plate 14, of the movable refractory plate 16, of the casing 38 of the fixed plate 14 and of the casing 40 of the movable plate 16 is evacuated in a single operation by means of a gripper.
  • a replacement assembly, comprising new refractories, is then brought in using the same manipulator or a different gripper.
  • the actuator is then actuated to pull the assembly which penetrates laterally relative to the pouring orifice under the locking means 26, which positions the two plates without any other additional operation.
  • the fixed plate 14 is slid under pressure means 30 before the fixed plate 14 begins to cover the pouring orifice.
  • this embodiment has a double advantage.
  • it allows, in accordance with the invention, to change the set of refractories in a single operation instead of having to successively manipulate the various refractory plates.
  • This is an important advantage in the case where the set of refractories comprises two plates as in the example shown.
  • This characteristic saves time important. This time saving is increased when two grippers are used, one for removing the used refractories, the other for setting up a set of new refractories.
  • the two grippers do not perform the same function because it is easier to remove the used set of refractories than to install a new set of refractories.
  • the gripper used for removal therefore does not need to be very sophisticated.
  • the embodiment shown has yet another advantage.
  • FIG. 5 shows an alternative embodiment of the invention.
  • the fixed refractory plate 14 is surrounded by a metal casing 110, for example made of sheet steel.
  • the movable refractory plate 16 is also surrounded by a metal casing made of sheet steel 112.
  • a nozzle is integral with this fixed refractory plate.
  • the metal casing of the fixed retractable plate is folded so as to constitute a flange 114.
  • the casing metal 112 of the movable refractory plate is folded over the rim 114 of the metallic casing of the fixed refractory plate so as to constitute a slide 116.
  • This slide constitutes the connection which makes it possible to set up and / or remove the plate fixed refractory and the movable refractory plate in a single operation of the pouring shutter. It goes without saying in the case where the set of refractory plates comprises more than two plates, each of these plates may comprise a clean metal envelope, each refractory plate being made integral with the neighboring refractory plate by means of a slide similar to that which has just been described. In a vertical handling position, the slide could allow the two plates to separate.
  • This drawback is overcome, in accordance with the invention, by equipping the slides with end-of-travel stops limiting the travel of the sliding movement. This stroke must however remain sufficient to allow normal operation of the pouring shutter when the plates have been put in place.
  • the fixed refractory plate 14 includes a metal casing 110, in a manner identical to that which has been described with reference to Figure 5.
  • the movable refractory plate 16 and the pouring nozzle 42 are placed in a rigid metal frame 120.
  • This metal frame has a groove 122 in which the flange 114 of the metal casing 110 of the fixed refractory plate is housed so as to constitute a slide, as described above.
  • this slide can also be equipped with limit stops.
  • the predetermined relative position can also be obtained by ensuring a mechanical setting sufficiently strong to maintain the relative positions of the two plates during handling and sufficiently weak to be destroyed by the drive means (wedge in the slide, pin between the metal frames. ..).
  • FIG. 7 shows an alternative embodiment of the invention.
  • the frame is constituted by a fixed frame 60 and by a door 62 mounted on articulated hinges 64 on the fixed frame 60.
  • the set of refractories to be exchanged consists of a fixed refractory plate 14 and a refractory plate mobile 16. These plates have through holes arranged in alignment with one another.
  • a manipulator 66 comprises a gripper 68, the end of which can be introduced into the holes.
  • the gripper 68 constitutes the means which makes it possible to link the plates 14 and 16 constituting the set so as to be able to introduce and / or remove them in a single operation.
  • the means which make it possible to link the plates together are external to the set of refractories. This is however sufficient since it is only necessary that the plates are linked together only during their handling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Sliding Valves (AREA)
EP93401009A 1993-04-19 1993-04-19 Keramischer Bausatz für einen Giessverschluss und Verfahren zum Wechselen desselben Expired - Lifetime EP0621097B1 (de)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ES93401009T ES2117110T3 (es) 1993-04-19 1993-04-19 Juego de elementos refractarios para un obturador de colada y procedimiento para cambiar dicho juego.
EP93401009A EP0621097B1 (de) 1993-04-19 1993-04-19 Keramischer Bausatz für einen Giessverschluss und Verfahren zum Wechselen desselben
AT93401009T ATE163583T1 (de) 1993-04-19 1993-04-19 Keramischer bausatz für einen giessverschluss und verfahren zum wechselen desselben
DE69317260T DE69317260T2 (de) 1993-04-19 1993-04-19 Keramischer Bausatz für einen Giessverschluss und Verfahren zum Wechselen desselben
US08/214,287 US5388733A (en) 1993-04-19 1994-03-17 Slide gate valve having replaceable refractory valve plate assembly and method of replacing the same
PCT/EP1994/001212 WO1994023864A2 (en) 1993-04-19 1994-04-19 Slide gate valve having replaceable refractory valve plate assembly and method of replacing the same
BR9404969A BR9404969A (pt) 1993-04-19 1994-04-19 Válvula de gaveta para regular a vazão de metal líquido e processo de substituição do conjunto de placas refratárias e das placas refratárias fixa e móvelde uma válvula de gaveta
AU66793/94A AU667275B2 (en) 1993-04-19 1994-04-19 Slide gate valve having replaceable refractory valve plate assembly and method of replacing the same
JP52277294A JP3335357B2 (ja) 1993-04-19 1994-04-19 交換可能な耐熱性弁プレート集合体を有する滑り弁および滑り弁を交換する方法
CN94190196A CN1057717C (zh) 1993-04-19 1994-04-19 具有可更换的耐火材料阀板组件的滑动闸板及阀板组件的更换方法
RU94046377A RU2117552C1 (ru) 1993-04-19 1994-04-19 Шиберный затвор для управления потоком расплавленного металла, способ замены узла с огнеупорными пластинами в шиберном затворе и способ замены неподвижной и подвижной огнеупорных шиберных пластин
CA002137373A CA2137373A1 (en) 1993-04-19 1994-04-19 Slide gate valve having replaceable refractory valve plate assembly and method of replacing the same
MXPA94002806A MXPA94002806A (es) 1993-04-19 1994-04-19 Valvula corrediza para colada con conjunto reemplazable de placas refractarias de valvula y metodo para reemplazar el mismo.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93401009A EP0621097B1 (de) 1993-04-19 1993-04-19 Keramischer Bausatz für einen Giessverschluss und Verfahren zum Wechselen desselben

Publications (2)

Publication Number Publication Date
EP0621097A1 true EP0621097A1 (de) 1994-10-26
EP0621097B1 EP0621097B1 (de) 1998-03-04

Family

ID=8214701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401009A Expired - Lifetime EP0621097B1 (de) 1993-04-19 1993-04-19 Keramischer Bausatz für einen Giessverschluss und Verfahren zum Wechselen desselben

Country Status (13)

Country Link
US (1) US5388733A (de)
EP (1) EP0621097B1 (de)
JP (1) JP3335357B2 (de)
CN (1) CN1057717C (de)
AT (1) ATE163583T1 (de)
AU (1) AU667275B2 (de)
BR (1) BR9404969A (de)
CA (1) CA2137373A1 (de)
DE (1) DE69317260T2 (de)
ES (1) ES2117110T3 (de)
MX (1) MXPA94002806A (de)
RU (1) RU2117552C1 (de)
WO (1) WO1994023864A2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2143340A1 (es) * 1995-10-31 2000-05-01 Krosaki Corp Dispositivo de tobera deslizante y metodo de cargar y liberar presion superficial utilizandolo.
CN108823353A (zh) * 2018-06-05 2018-11-16 马鞍山利尔开元新材料有限公司 一种高寿命的连滑闸阀系统
WO2020127244A1 (en) * 2018-12-18 2020-06-25 Vesuvius Group, S.A. Metallurgic casting installation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2731725B2 (ja) * 1994-08-25 1998-03-25 東芝セラミックス株式会社 再生スライドゲートプレート
US5626164A (en) * 1995-08-02 1997-05-06 Vesuvius Crucible Company Crack resistant valve plate assembly for a molten metal slide gate valve
DE10140202A1 (de) * 2001-08-16 2003-03-06 Bayer Ag Vanadium-Imido-Phosphoraniminato für die Olefinpolymerisation
JP6802033B2 (ja) * 2016-10-20 2020-12-16 黒崎播磨株式会社 プレートの保持装置、保持構造及び保持方法

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DE2924118C2 (de) * 1979-06-15 1983-03-31 Zimmermann & Jansen GmbH, 5160 Düren Schieberverschluß für eine Gießpfanne
US4415103A (en) * 1979-09-07 1983-11-15 Uss Engineers And Consultants, Inc. Full throttle valve and method of tube and gate change
US4545512A (en) * 1981-01-19 1985-10-08 Uss Engineers & Consultants, Inc. Full throttle valve and method of tube and gate change
DE3230107A1 (de) * 1982-08-13 1984-03-01 Raimund Dipl.-Ing. 6238 Hofheim Brückner Verwendung von keramischem fasermaterial bei feuerfesten verschleissteilen von schiebeverschluessen fuer fluessige metallschmelze enthaltende gefaesse sowie schiebeverschluss mit feuerfesten verschleissteilen aus keramischem fasermaterial
JPH0335481Y2 (de) * 1984-09-11 1991-07-26
DE3500863A1 (de) * 1985-01-12 1986-07-17 Stopinc Ag, Baar Schiebeverschluss fuer den ausguss metallurgischer gefaesse
US4892235A (en) * 1988-06-23 1990-01-09 Flo-Con Systems, Inc. Joint and shroud support for pour tube and collector nozzle
US5211857A (en) * 1990-10-31 1993-05-18 Leco Corporation Gate safety arrangement
US5011050A (en) * 1990-10-31 1991-04-30 Leco Corporation Stepped gate safety arrangement
AU9020691A (en) * 1990-11-21 1992-06-25 Broken Hill Proprietary Company Limited, The Continuous casting of molten metal
ES2176196T5 (es) * 1993-04-19 2006-05-01 Vesuvius France S.A. Dispositivo de colada que incluye una union sin cemento de un contenedor metalurgico a un obturador de cajon, y procedimiento de aplicacion de dicho dispositivo.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2143340A1 (es) * 1995-10-31 2000-05-01 Krosaki Corp Dispositivo de tobera deslizante y metodo de cargar y liberar presion superficial utilizandolo.
CN108823353A (zh) * 2018-06-05 2018-11-16 马鞍山利尔开元新材料有限公司 一种高寿命的连滑闸阀系统
WO2020127244A1 (en) * 2018-12-18 2020-06-25 Vesuvius Group, S.A. Metallurgic casting installation

Also Published As

Publication number Publication date
CN1104830A (zh) 1995-07-05
WO1994023864A3 (en) 1994-12-08
JPH07508224A (ja) 1995-09-14
DE69317260T2 (de) 1998-06-25
JP3335357B2 (ja) 2002-10-15
RU94046377A (ru) 1996-10-20
ES2117110T3 (es) 1998-08-01
AU667275B2 (en) 1996-03-14
ATE163583T1 (de) 1998-03-15
CN1057717C (zh) 2000-10-25
US5388733A (en) 1995-02-14
WO1994023864A2 (en) 1994-10-27
EP0621097B1 (de) 1998-03-04
BR9404969A (pt) 1999-06-15
AU6679394A (en) 1994-11-08
CA2137373A1 (en) 1994-10-27
MXPA94002806A (es) 2004-08-20
RU2117552C1 (ru) 1998-08-20
DE69317260D1 (de) 1998-04-09

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