EP3587002A1 - Fermeture coulissante pour un récipient métallurgique, de préférence un récipient de distribution pour une installation de coulée continue - Google Patents

Fermeture coulissante pour un récipient métallurgique, de préférence un récipient de distribution pour une installation de coulée continue Download PDF

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Publication number
EP3587002A1
EP3587002A1 EP18179932.1A EP18179932A EP3587002A1 EP 3587002 A1 EP3587002 A1 EP 3587002A1 EP 18179932 A EP18179932 A EP 18179932A EP 3587002 A1 EP3587002 A1 EP 3587002A1
Authority
EP
European Patent Office
Prior art keywords
housing
closure
sliding closure
plate
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.)
Granted
Application number
EP18179932.1A
Other languages
German (de)
English (en)
Other versions
EP3587002B1 (fr
Inventor
Beat HEINRICH
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.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
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
Priority to EP18179932.1A priority Critical patent/EP3587002B1/fr
Application filed by Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Priority to US17/255,752 priority patent/US11654480B2/en
Priority to CA3100704A priority patent/CA3100704A1/fr
Priority to CN201980042658.XA priority patent/CN112334251B/zh
Priority to PCT/EP2019/060299 priority patent/WO2020001825A1/fr
Priority to MX2020011851A priority patent/MX2020011851A/es
Priority to KR1020217002081A priority patent/KR20210024577A/ko
Priority to BR112020023507-5A priority patent/BR112020023507A2/pt
Priority to UAA202008233A priority patent/UA127927C2/uk
Priority to TW108116429A priority patent/TW202000343A/zh
Publication of EP3587002A1 publication Critical patent/EP3587002A1/fr
Priority to ZA2020/06813A priority patent/ZA202006813B/en
Application granted granted Critical
Publication of EP3587002B1 publication Critical patent/EP3587002B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D41/40—Means for pressing the plates together
    • 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
    • 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

  • the invention relates to a sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting plant, according to the preamble of claim 1.
  • Sliding locks of this type are, for example, from the publication EP 0 891 829 previously known. They are characterized by that with them the throttling or the closing of the spout is brought about by the longitudinal movement of the slide plate. They thus serve in particular as an actuator for a controlled pouring of the amount of melt from the metallurgical vessel.
  • the plate tension is set in such a way that it ensures both the free movement of the slide lock and the necessary tightness of the slide lock against air intake.
  • the bracing of the slats is exposed to additional loads during operation, which results primarily from the thermal expansion of the refractory panels.
  • the invention has for its object to provide a sliding closure of the type mentioned, which optimally absorbs the operational stresses of the plate bracing due to the thermal expansion of the closure plates and / or the expansion or lowering of the upper inner sleeve.
  • this first compensation unit with spring arrangements for tightening the closing plates against each other as well as this second compensation unit with spring arrangements for tightening the closing plates against the upper inner sleeve with an additional insert frame that is adjustable in the housing and can be pressed against the lower closing plate, an optimal absorption of the refractory expansion can be achieved.
  • the invention provides that the spring arrangement of the first compensation unit is composed of disc springs, the pretensioning of which can preferably be adjusted with the aid of a stroke limit stop of the fastening screws.
  • the plate bracing can thus be adapted to a wide expansion range of the refractory parts, which results from thermal reasons or from manufacturing-related scattering of the refractory closing plate thicknesses.
  • the initial preload of the springs can also be set precisely and repeatably.
  • the plate springs transmit the spring stroke via pivot pins, the guides of which are provided with inserts. This minimizes wear on these parts.
  • the invention further provides that the insert frame of the second compensation unit is fastened on the underside of the housing by means of fastening screws arranged in pairs on both sides of the spout with disc springs inserted between its screw head and the insert frame, which form the spring arrangement of the second compensation unit. In this way, uniform loading of the insert frame and thus of the lower closure plate can be achieved with structurally simple means.
  • a sealing element comprising the spout between the latter and the housing, which is preferably inserted in a groove in the housing and / or in the insert frame.
  • the sliding closure is advantageously provided with an exchangeable pouring tube which is pressed against the lower closure plate by means of spring-loaded pressing elements.
  • the pressing elements are expediently arranged in such a way that they are effective independently of the two compensation units of the sliding closure. This means that they remain functional in all operating phases, both with and without a pouring tube.
  • the sliding lock after Fig. 1 can be mounted on the spout of a metallurgical vessel.
  • the vessel is preferably designed as a distributor vessel of a continuous casting plant, the sliding closure serving to regulate the amount of melt fed into the continuous casting mold during the casting process.
  • a pouring tube 3 arranged on the underside of the sliding closure enables the molten metal to be poured into the mold in a concealed manner.
  • this sliding closure could also be used on a pan, a converter rack or the like.
  • the sliding lock after 1 and 2 comprises a housing 4 with a seal 4 ′ arranged all around on its upper end face, so that it is sealed on the top of the vessel in the assembled state.
  • Fixed refractory closure plates 5, 6 and a slide plate 8 which can be moved back and forth between them by a drive 7 can be used in the housing 4, the longitudinal movement of which causes the spout 9 to be opened, throttled or closed.
  • the upper closure plate 5 is arranged in a cover 11 of the housing 4 which is pivotably mounted about an axis 10, while the lower closure plate 6 is fixed in an insert frame 25 of the housing 4 and the movable closure plate 8 is clamped in a metal frame 12 coupled to the drive 7 ,
  • the pouring tube 3 is pressed against the lower closure plate 6 with spring-loaded rocker arms 33.
  • the housing 4 has protruding supports 13 on the upper side, which in the operating state are placed against the outer steel jacket of the distribution vessel 2.
  • a spring arrangement 23 has a lower part 16 guided in the housing 4 with a screw head 17 and a transverse bolt 18 about which a pivot bolt 20 provided with thread 19 can be pivoted, the latter being guided in a recess 21 in the cover 11 and in a nut 22 is screwed in above the cover.
  • the nuts 22 can be loosened and the pivot bolts 20 can be pivoted out of the recesses 21 in the cover.
  • the pivot bolts 20 are provided with a stroke limit stop 20a, with which the initial preload of the plate springs 23 acting on tension can be adjusted precisely and repeatably.
  • the nuts 22 of the fastening screws are assigned inserts 24 in the cover 11, which minimize wear due to the frequent assembly and disassembly of the screw connections during operation.
  • the nuts 22 are screwed onto the pivot pin 20 to such an extent that the closure plates of the slide closure located between the insert frame 25 and the cover 11 are braced against one another with the respectively provided contact pressure.
  • This contact pressure is dimensioned such that it ensures the trouble-free displacement of the slide plate 8 during operation with full metal or gas tightness of the slide closure to the outside.
  • the refractory closure plates 5, 6, 8 experience a scattering mechanical expansion of up to 3 millimeters as a result of the heating or their manufacturing tolerances, as a result of which the plate tension is subjected to an additional load.
  • this is compensated for by a first compensation unit I, in that the plate springs 23 'of the spring arrangement 23 yield more or less as a result of the additional load. Due to the paired arrangement of the fastening screws 15a to 15d on both sides of the spout 1 the load compensation is distributed very evenly over the closing plates.
  • an insert frame 25 with a spring arrangement 30 for bracing the closure plates 5, 6, 8 against the upper inner sleeve 1 of the spout is arranged on the underside of the housing 4.
  • This additional insert frame 25 is fastened to the housing 4 with fastening screws 26 arranged in pairs on both sides of the spout.
  • the spring arrangement 30 in turn consists of disc springs 30 which are inserted between the screw head 28 of the fastening screws 26 and the insert frame 25 and have the function of pressing the insert frame against the lower closure plate 6 resting on it and thus the three closure plates 5, 6, 8 together to be braced against the upper inner sleeve 1 of the spout.
  • this second compensation unit II which is formed according to the invention, when the inner sleeve 1 is expanded or lowered, the additional load caused thereby is compensated by the plate springs 30 yielding more or less as a result of this load. It is advantageous if these disc springs 30 are manufactured in such a way that they are provided with a steep characteristic curve with respect to their stroke path in relation to the spring force, so that they cause a relatively high change in force with little stroke. This is matched to the corresponding characteristic curves of the plate springs 23 'of the compensation unit I, so that there is always an optimal tension. It is to be avoided that depending on the position of the displaceable closure plate 8, the closure plates could be tilted, which could primarily occur due to an external force effect through the pouring tube.
  • a sealing element 31 comprising the latter is approximately half in the groove 4 in the groove 4 and approximately half in the insert frame 25. This achieves a labyrinth effect which additionally improves the tightness.
  • the groove could also be formed only in the housing or in the insert frame.
  • Fig. 6 shows schematically the arrangement of the two compensation units I and II in the sliding closure.
  • the first compensation unit I is formed by the spring arrangements 23 acting on the tension between the cover 11 and the housing 4 for resilient bracing of the closure plates 5, 6, 8
  • the second compensation unit II is formed by the spring arrangements 30 acting on the pressure between the insert frame 25 and the Housing 4 for clamping the closure plates 5, 6, 8 against the inner sleeve 1 is effective.
  • These compensation units can be set independently of one another and are also effective independently of one another, so that they can perform their function both individually and in combination with one another. As a result, they protect the refractory parts of the sliding closure from overstressing, which can result from the thermal expansion and from manufacturing-related scattering of the refractory closure plate thicknesses and / or the upper inner sleeve, the inner sleeve also being able to lower during operation.
  • a clamping device 34 is chosen so that its arrangement in the housing 4 does not affect the function of the compensation units I and II.
  • the clamping device 34 is composed of a clamping jaw 38 adjustable in the metal frame 12 against the closing plate 8, two adjusting elements 35, 36 arranged on both sides of the central axis M of the slide plate 8 and a threaded spindle 37 bearing the latter together.
  • the threaded spindle 37 is rotatably mounted transversely to the central axis M in the metal frame 12 and provided with opposing threaded sections.
  • this threaded spindle 37 By manual rotation of this threaded spindle 37, the adjusting elements 35, 36 are adjusted symmetrically to one another outwards or inwards and by corresponding wedge surfaces 35 ', 36' in the adjusting elements 35, 36 or the clamping jaw 38, the latter is pressed against the closing plate 8, so that A self-locking wedge is created so that it does not come loose in the operating state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP18179932.1A 2018-06-26 2018-06-26 Fermeture coulissante pour un récipient métallurgique Active EP3587002B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP18179932.1A EP3587002B1 (fr) 2018-06-26 2018-06-26 Fermeture coulissante pour un récipient métallurgique
UAA202008233A UA127927C2 (uk) 2018-06-26 2019-04-23 Шиберний затвор для металургійного контейнера, переважно проміжного ковша для системи безперервного лиття
CN201980042658.XA CN112334251B (zh) 2018-06-26 2019-04-23 用于冶金容器的、优选用于连铸系统的中间包的滑动封闭件
PCT/EP2019/060299 WO2020001825A1 (fr) 2018-06-26 2019-04-23 Obturateur à tiroir pour un récipient métallurgique, de préférence un récipient distributeur pour une installation de coulée continue
MX2020011851A MX2020011851A (es) 2018-06-26 2019-04-23 Cierre corredizo para recipiente metalurgico, preferiblemente un recipiente distribuidor para una instalacion de fundicion continua.
KR1020217002081A KR20210024577A (ko) 2018-06-26 2019-04-23 야금 용기, 바람직하게는 연속 주조 시스템용 턴디시를 위한 슬라이드 클로저
US17/255,752 US11654480B2 (en) 2018-06-26 2019-04-23 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility
CA3100704A CA3100704A1 (fr) 2018-06-26 2019-04-23 Obturateur a tiroir pour un recipient metallurgique, de preference un recipient distributeur pour une installation de coulee continue
BR112020023507-5A BR112020023507A2 (pt) 2018-06-26 2019-04-23 Fecho deslizante para um vaso metalúrgico, de preferência um distribuidor para um sistema de fundição de cordões
TW108116429A TW202000343A (zh) 2018-06-26 2019-05-13 較佳為用於單流鑄造系統之餵槽的用於冶金容器之滑動閉合件
ZA2020/06813A ZA202006813B (en) 2018-06-26 2020-10-30 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18179932.1A EP3587002B1 (fr) 2018-06-26 2018-06-26 Fermeture coulissante pour un récipient métallurgique

Publications (2)

Publication Number Publication Date
EP3587002A1 true EP3587002A1 (fr) 2020-01-01
EP3587002B1 EP3587002B1 (fr) 2020-12-16

Family

ID=62791642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18179932.1A Active EP3587002B1 (fr) 2018-06-26 2018-06-26 Fermeture coulissante pour un récipient métallurgique

Country Status (11)

Country Link
US (1) US11654480B2 (fr)
EP (1) EP3587002B1 (fr)
KR (1) KR20210024577A (fr)
CN (1) CN112334251B (fr)
BR (1) BR112020023507A2 (fr)
CA (1) CA3100704A1 (fr)
MX (1) MX2020011851A (fr)
TW (1) TW202000343A (fr)
UA (1) UA127927C2 (fr)
WO (1) WO2020001825A1 (fr)
ZA (1) ZA202006813B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230042291A1 (en) * 2020-01-15 2023-02-09 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a metallurgical vessel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3587002B1 (fr) 2018-06-26 2020-12-16 Refractory Intellectual Property GmbH & Co. KG Fermeture coulissante pour un récipient métallurgique

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61159258A (ja) * 1984-12-29 1986-07-18 Kurosaki Refract Co Ltd スライディングノズル装置のプレ−ト固定機構
US4697723A (en) * 1985-04-10 1987-10-06 Stopinc Aktiengesellschaft Tensioning structure for a sliding closure unit
EP0502185A1 (fr) * 1990-10-01 1992-09-09 Flo Con Syst Organe de serrage pour piece refractaire sans bande et procede associe.
WO1994023867A1 (fr) * 1993-04-19 1994-10-27 Vesuvius France S.A. Robinet-vanne a joint sans ciment situe entre la vanne et une cuve metallurgique
EP0891829A1 (fr) 1997-07-16 1999-01-20 Stopinc AG Busette à tiroir pour récipients métallurgique
US6422435B1 (en) * 1998-07-26 2002-07-23 Stopinc Aktiengesellschaft Slide gate for a container containing molten metal
EP1590114A1 (fr) * 2003-01-20 2005-11-02 Vesuvius Group S.A Buse de coulee, dispositif de poussee pour la buse de coulee, et installation de coulee
US20100147905A1 (en) * 2006-12-11 2010-06-17 Werner Keller Sliding Closure for a Metallurgical Vessel
EP2979778A1 (fr) * 2011-06-27 2016-02-03 Knollinger Flo-Tec GMBH Fermeture à tiroir pour cuve de coulée métallurgique, en particulier pour poche de coulée
US20170259332A1 (en) * 2014-09-11 2017-09-14 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a metallurgical vessel

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US3587945A (en) 1969-01-16 1971-06-28 United States Steel Corp Supporting mechanism for multiple closures on bottom-dispensing vessels
BE756374A (fr) 1969-09-24 1971-03-18 Uss Eng & Consult Mecanisme de support pour tiroir obturateur
US3727805A (en) 1972-01-24 1973-04-17 Steel Corp Mechanism for supporting a submerged pouring tube on a bottom-pour vessel and method of replacing tubes
US3765579A (en) 1972-05-10 1973-10-16 United States Steel Corp Linearly movable gate mechanism
US3926406A (en) 1972-07-26 1975-12-16 United States Steel Corp Casting of metals
IT1004615B (it) 1973-10-16 1976-07-20 Sirma Soc Italiana Otturatore con organo mobile azio nabile in movimento angolare parti colarmente per il controllo del flusso di metalli fusi da conteni tori o siviere
DE2840171C3 (de) 1978-09-15 1981-06-04 Stahlwerke Röchling-Burbach GmbH, 6620 Völklingen Verschlußvorrichtung für den Bodenausguß von Gießpfannen
US4570908A (en) 1983-03-24 1986-02-18 Flo-Con Systems, Inc. Furnace valve
EP0277146B2 (fr) * 1986-08-20 1993-07-14 Stopinc Aktiengesellschaft Fermeture coulissante sur le bec de coulee d'une cuve contenant un bain de fusion
DE3835687A1 (de) 1988-10-20 1990-04-26 Cerafer Sarl Schieberverschluss fuer metallurgische gefaesse
AT506190B1 (de) * 2007-12-20 2010-05-15 Siemens Vai Metals Tech Gmbh Vorrichtung zum auswechselbaren anschliessen eines giessrohres an einen ausguss eines schmelzenbehälters
EP2604363A1 (fr) * 2011-12-16 2013-06-19 Vesuvius Crucible Company Scellement intumescent pour appareil de coulée du métal
US10670154B2 (en) 2018-06-06 2020-06-02 Aaron Engineered Process Equipment, Inc. Adjustable orifice valve
EP3587002B1 (fr) * 2018-06-26 2020-12-16 Refractory Intellectual Property GmbH & Co. KG Fermeture coulissante pour un récipient métallurgique

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61159258A (ja) * 1984-12-29 1986-07-18 Kurosaki Refract Co Ltd スライディングノズル装置のプレ−ト固定機構
US4697723A (en) * 1985-04-10 1987-10-06 Stopinc Aktiengesellschaft Tensioning structure for a sliding closure unit
EP0502185A1 (fr) * 1990-10-01 1992-09-09 Flo Con Syst Organe de serrage pour piece refractaire sans bande et procede associe.
WO1994023867A1 (fr) * 1993-04-19 1994-10-27 Vesuvius France S.A. Robinet-vanne a joint sans ciment situe entre la vanne et une cuve metallurgique
EP0891829A1 (fr) 1997-07-16 1999-01-20 Stopinc AG Busette à tiroir pour récipients métallurgique
US6422435B1 (en) * 1998-07-26 2002-07-23 Stopinc Aktiengesellschaft Slide gate for a container containing molten metal
EP1590114A1 (fr) * 2003-01-20 2005-11-02 Vesuvius Group S.A Buse de coulee, dispositif de poussee pour la buse de coulee, et installation de coulee
US20100147905A1 (en) * 2006-12-11 2010-06-17 Werner Keller Sliding Closure for a Metallurgical Vessel
EP2979778A1 (fr) * 2011-06-27 2016-02-03 Knollinger Flo-Tec GMBH Fermeture à tiroir pour cuve de coulée métallurgique, en particulier pour poche de coulée
US20170259332A1 (en) * 2014-09-11 2017-09-14 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a metallurgical vessel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230042291A1 (en) * 2020-01-15 2023-02-09 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a metallurgical vessel
US11969785B2 (en) * 2020-01-15 2024-04-30 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a metallurgical vessel

Also Published As

Publication number Publication date
US20210268581A1 (en) 2021-09-02
UA127927C2 (uk) 2024-02-14
ZA202006813B (en) 2022-01-26
MX2020011851A (es) 2021-01-20
TW202000343A (zh) 2020-01-01
KR20210024577A (ko) 2021-03-05
EP3587002B1 (fr) 2020-12-16
BR112020023507A2 (pt) 2021-03-30
CN112334251A (zh) 2021-02-05
CN112334251B (zh) 2023-03-10
WO2020001825A1 (fr) 2020-01-02
CA3100704A1 (fr) 2020-01-02
US11654480B2 (en) 2023-05-23

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