EP0356551B1 - Feuerfester Plattensatz für Dreiplattenschieberverschlüsse - Google Patents

Feuerfester Plattensatz für Dreiplattenschieberverschlüsse Download PDF

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Publication number
EP0356551B1
EP0356551B1 EP88114176A EP88114176A EP0356551B1 EP 0356551 B1 EP0356551 B1 EP 0356551B1 EP 88114176 A EP88114176 A EP 88114176A EP 88114176 A EP88114176 A EP 88114176A EP 0356551 B1 EP0356551 B1 EP 0356551B1
Authority
EP
European Patent Office
Prior art keywords
plate
flow
plates
outlet
sliding
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
EP88114176A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0356551A1 (de
Inventor
Berhard Dipl.-Ing. Dipl.-Kfm. Tinnes
Walter Masch.Ing.Htl Vetterli
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.)
Metacon AG
Original Assignee
Metacon 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 Metacon AG filed Critical Metacon AG
Priority to AT88114176T priority Critical patent/ATE74036T1/de
Priority to DE8888114176T priority patent/DE3869609D1/de
Priority to ES198888114176T priority patent/ES2031561T3/es
Priority to EP88114176A priority patent/EP0356551B1/de
Priority to ZA895235A priority patent/ZA895235B/xx
Priority to CA000607347A priority patent/CA1340540C/en
Priority to CS478989A priority patent/CS273200B2/cs
Priority to JP1215159A priority patent/JPH0289559A/ja
Priority to AR89314757A priority patent/AR241644A1/es
Priority to MX017330A priority patent/MX171518B/es
Priority to US07/400,056 priority patent/US4966315A/en
Priority to SU894614846A priority patent/SU1731039A3/ru
Priority to HU450689A priority patent/HU209419B/hu
Priority to CN89106645A priority patent/CN1018805B/zh
Publication of EP0356551A1 publication Critical patent/EP0356551A1/de
Application granted granted Critical
Publication of EP0356551B1 publication Critical patent/EP0356551B1/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 refractory plate set for three-plate slide closures, in particular for regulating the inflow of molten steel in continuous casting molds, with a melt flow channel formed by the flow openings of the plates, the flow cross section of which can be changed by adjusting a slide plate, which is between a stationary inlet plate and a likewise stationary, a refractory one Spout, for example in the form of a pouring tube or an outlet sleeve, supports a supporting outlet plate, the flow bore of which has a conical expansion area at least on the inlet side and enables the melt to flow completely out of the flow bore of the slide plate during the closing process.
  • slide shutters equipped with a set of three refractory plates serve primarily to regulate the amount of melt to be fed from a tundish to a continuous casting mold.
  • the starting point of the control range is a throttle position in which the slide plate blocks the flow channel of the plate set to such an extent that regulation is possible both in the closing and in the opening direction of the slide plate.
  • the throttle position at the start of pouring with the flow channel fully open may be an exception to the throttle position at the start of pouring with the flow channel fully open, except for the usual one Flow holes of the inlet and outlet plates are congruently fixed, the flow hole of the slide plate is also congruent.
  • the throttle edge of the slide plate protrudes far between the flow bores of the inlet and outlet plate and causes a sharp deflection of the melt flow or pouring jet in the flow channel of the closure with a curve bulging in the closing direction.
  • the result of such a sharp flow curve is increased flow pressures, especially below the slide plate on the edge of the bore in the flow path of the outlet plate and in the region of the outlet below it.
  • deposits from the melt occur primarily at the bore edge of the outlet plate lying in the flow path as a result of flow eddies, which increasingly narrow the flow channel.
  • a discharge plate with an elongated hole the cross section of which is larger than the cross section of the flow holes of the other plates, largely weakened mainly in their flexural strength.
  • the flow opening is also designed as a flow bore, but in the open position except for an inlet-side conical expansion congruent with the flow openings of the other two plates.
  • the object of the present invention is to achieve an improved flow of the melt in the throttling position of the three-plate set with simple technical means with a comparatively long service life of the plates.
  • the simple technical means according to the invention are that the axis of the flow bore of the outlet plate is offset in comparison with the diameter of the flow bore of the slide plate with the same or smaller diameter relative to the axis of the flow bore of the inlet plate in the closing direction of the slide plate.
  • the invention can be carried out in such a way that two extension regions are provided on the bore edges of the outlet plate opposite one another in the direction of displacement, or there is a single conical extension region which then lies in the opening direction of the slide plate. Both versions are easy to accomplish, for example, by slanting an extension drill on the edge of the hole and result in favorable strength ratios of the outlet plates.
  • the ring width of the conical extension regions preferably corresponds at least to the degree of the axis offset.
  • the flow hole of the outlet plate can preferably be kept smaller than the diameter of the flow hole in the inlet plate by at most twice the amount of the axis offset.
  • a conventional plate set according to FIG. 1 for a three-plate slide closure has a stationary inlet plate 1 with a through-bore 4, an adjustable slide plate 2 with a through-hole 5 and a stationary outlet plate 3 with a through-hole 6, to which a refractory outlet pipe 7 is connected.
  • All flow bores 4 to 6 have the same diameter and are congruent in the open position. They form a flow channel 4 to 6 for molten steel, which flows from a vessel (not shown) to the closure and flows through the outlet pipe 7 (immersion pipe) into a mold (also not shown) in a controlled manner.
  • the cross-section of the flow channel 4 to 6 can be changed and take any conceivable throttle position between a full open position and a full closed position, for example to keep the fill level in a continuous casting mold at a desired set level.
  • the approximately half throttle position shown in FIG. 1 is the normal pouring position, which has approximately the same control reserves in the opening and closing directions.
  • melt flow in the flow channel 4 to 6 is sharply deflected at the projecting throttle edge 9 of the slide plate 2.
  • the flow or Deflection pressure of the melt stream or pouring jet with vortex formation mainly affects the opening edge 10 of the outlet plate 3 lying in the closing direction and the region 11 of the outlet pipe 7 underneath, which leads to premature wear with an adverse effect on the service life of outlet plate 3 and outlet pipe 7 .
  • the extension of the outlet plate 3 can consist of extension areas 15 which face each other in the direction of displacement of the slide plate 2 at the flow-through hole 16, the diameter of which is kept smaller than the same diameter of the holes 4 and 5 in order to consolidate the pouring jet .
  • the melt can flow through the flow channels 4, 5 and 16 almost without deflection.
  • a single extension area 17 on the flow-through bore 18 of the outlet plate 3, namely in the open position of the slide plate 2 can be used, in which case it must be ensured that in FIG 9 illustrated throttle position, the edge projection 19 of the outlet plate is as small as possible.
  • the plate set described for continuous casting plants is also equally effective for casting work in which an outlet sleeve is connected to the outlet plate 3 instead of an outlet pipe 7 (immersion pipe).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sliding Valves (AREA)
EP88114176A 1988-08-31 1988-08-31 Feuerfester Plattensatz für Dreiplattenschieberverschlüsse Expired - Lifetime EP0356551B1 (de)

Priority Applications (14)

Application Number Priority Date Filing Date Title
AT88114176T ATE74036T1 (de) 1988-08-31 1988-08-31 Feuerfester plattensatz fuer dreiplattenschieberverschluesse.
DE8888114176T DE3869609D1 (de) 1988-08-31 1988-08-31 Feuerfester plattensatz fuer dreiplattenschieberverschluesse.
ES198888114176T ES2031561T3 (es) 1988-08-31 1988-08-31 Juego de placas refractarias para cierres de corredera de tres placas.
EP88114176A EP0356551B1 (de) 1988-08-31 1988-08-31 Feuerfester Plattensatz für Dreiplattenschieberverschlüsse
ZA895235A ZA895235B (en) 1988-08-31 1989-07-10 Refractory plate set for three-plate sliding gate valves
CA000607347A CA1340540C (en) 1988-08-31 1989-08-02 Refractory plate set of three-plate sliding gate valves
CS478989A CS273200B2 (en) 1988-08-31 1989-08-14 Refractory system of plates for three-plate slide valve closures
JP1215159A JPH0289559A (ja) 1988-08-31 1989-08-23 ３板摺動閉鎖装置用の耐火板装置
AR89314757A AR241644A1 (es) 1988-08-31 1989-08-25 Un juego de placas refractarias para cierres a corredera de tres placas.
MX017330A MX171518B (es) 1988-08-31 1989-08-28 Juego de placas refractarias para cirres a corredera de tres placas
US07/400,056 US4966315A (en) 1988-08-31 1989-08-29 Refractory plate assembly for a three-plate sliding closure unit
SU894614846A SU1731039A3 (ru) 1988-08-31 1989-08-30 Огнеупорный дисковый комплект дл трехдисковых затворов
HU450689A HU209419B (en) 1988-08-31 1989-08-30 Fire-proof plate system for latch consists of three plates
CN89106645A CN1018805B (zh) 1988-08-31 1989-08-30 三板板闸的耐火闸板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88114176A EP0356551B1 (de) 1988-08-31 1988-08-31 Feuerfester Plattensatz für Dreiplattenschieberverschlüsse

Publications (2)

Publication Number Publication Date
EP0356551A1 EP0356551A1 (de) 1990-03-07
EP0356551B1 true EP0356551B1 (de) 1992-03-25

Family

ID=8199246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114176A Expired - Lifetime EP0356551B1 (de) 1988-08-31 1988-08-31 Feuerfester Plattensatz für Dreiplattenschieberverschlüsse

Country Status (14)

Country Link
US (1) US4966315A (es)
EP (1) EP0356551B1 (es)
JP (1) JPH0289559A (es)
CN (1) CN1018805B (es)
AR (1) AR241644A1 (es)
AT (1) ATE74036T1 (es)
CA (1) CA1340540C (es)
CS (1) CS273200B2 (es)
DE (1) DE3869609D1 (es)
ES (1) ES2031561T3 (es)
HU (1) HU209419B (es)
MX (1) MX171518B (es)
SU (1) SU1731039A3 (es)
ZA (1) ZA895235B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917851A1 (de) * 1999-04-21 2000-10-26 Didier Werke Ag Drehschieberplatte

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603480A3 (en) * 1992-11-25 1997-09-17 Stopinc Ag Sliding closure in particular for a converter holding a bath of molten metal.
US5518154A (en) * 1994-11-17 1996-05-21 Usx Corporation Gate and pour tube assembly for use in throttling gate valve
RU2260497C2 (ru) * 2000-03-16 2005-09-20 Везувиус Крусибл Компани Устройство и способ дозирования потока при непрерывной разливке жидкого металла
AU2003902165A0 (en) * 2003-05-07 2003-05-22 Castalloy Manufacturing Pty Ltd Slide shutoff for metal flow in corecast process
TWI302493B (en) * 2006-06-13 2008-11-01 Advanced Semiconductor Eng System for supplying molding compound
FI120385B (fi) * 2007-07-06 2009-10-15 Indref Oy Sulkumekanismi sulan metallin annostelemiseksi ja menetelmä sulkumekanismin valmistamiseksi
HUE028952T2 (en) * 2008-04-17 2017-01-30 Stopinc Ag Locking plate and gate valve on the melting hole of a metal melt tank
EP2543455B1 (de) 2011-07-08 2014-01-15 Refractory Intellectual Property GmbH & Co. KG Feuerfeste keramische Schieberplatte und zugehöriges Schieberplattenset
CN107175326A (zh) * 2017-06-28 2017-09-19 秦皇岛首秦金属材料有限公司 一种钢包滑板结构
US11434775B2 (en) 2020-08-31 2022-09-06 Rolls-Royce North American Technologies Inc. Turbine engine with metered cooling system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436023A (en) * 1965-03-09 1969-04-01 Concast Ag Apparatus for altering the position of a jet of molten metal,especially for continuous casting machines
DE1910247A1 (de) * 1969-02-28 1970-09-10 Neitzel Dipl Ing Martin Vorrichtung und Verfahren zum Abgiessen von metallurgischen Schmelzen und aehnlichen Produkten
FR2083566A1 (fr) * 1970-03-25 1971-12-17 Didier Werke Ag Fermeture-a tiroir de conteneur pour metal fondu liquide
GB1515922A (en) * 1975-06-04 1978-06-28 Danieli Off Mecc Bottom pouring vessel with rotary sliding gate valve for molten metal
FR2433384A1 (fr) * 1978-08-19 1980-03-14 Stopinc Ag Dispositif de fermeture a tiroir a trois plaques

Family Cites Families (4)

* 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
US4077457A (en) * 1974-03-06 1978-03-07 Sumitomo Metal Industries Limited Molten metal pouring control method and apparatus for use in continuous casting equipment
JPS53129125A (en) * 1977-04-19 1978-11-10 Mitsubishi Heavy Ind Ltd Ladle value control apparatus in continuous casting
DE3509932A1 (de) * 1985-03-19 1986-10-02 Metacon AG, Zürich Verfahren zum anfahren einer stranggiessanlage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436023A (en) * 1965-03-09 1969-04-01 Concast Ag Apparatus for altering the position of a jet of molten metal,especially for continuous casting machines
DE1910247A1 (de) * 1969-02-28 1970-09-10 Neitzel Dipl Ing Martin Vorrichtung und Verfahren zum Abgiessen von metallurgischen Schmelzen und aehnlichen Produkten
FR2083566A1 (fr) * 1970-03-25 1971-12-17 Didier Werke Ag Fermeture-a tiroir de conteneur pour metal fondu liquide
GB1515922A (en) * 1975-06-04 1978-06-28 Danieli Off Mecc Bottom pouring vessel with rotary sliding gate valve for molten metal
FR2433384A1 (fr) * 1978-08-19 1980-03-14 Stopinc Ag Dispositif de fermeture a tiroir a trois plaques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917851A1 (de) * 1999-04-21 2000-10-26 Didier Werke Ag Drehschieberplatte
DE19917851C2 (de) * 1999-04-21 2003-04-10 Didier Werke Ag Drehschieberplatte

Also Published As

Publication number Publication date
DE3869609D1 (de) 1992-04-30
MX171518B (es) 1993-11-03
ZA895235B (en) 1990-04-25
AR241644A1 (es) 1992-10-30
HU209419B (en) 1994-06-28
ATE74036T1 (de) 1992-04-15
ES2031561T3 (es) 1992-12-16
CN1040939A (zh) 1990-04-04
CA1340540C (en) 1999-05-11
US4966315A (en) 1990-10-30
JPH0289559A (ja) 1990-03-29
EP0356551A1 (de) 1990-03-07
CS273200B2 (en) 1991-03-12
CS478989A2 (en) 1990-06-13
SU1731039A3 (ru) 1992-04-30
HUT54545A (en) 1991-03-28
CN1018805B (zh) 1992-10-28

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