WO2016050847A1 - Dispositif et procédé d'ouverture d'un canal de coulée de cuves métallurgiques - Google Patents

Dispositif et procédé d'ouverture d'un canal de coulée de cuves métallurgiques Download PDF

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Publication number
WO2016050847A1
WO2016050847A1 PCT/EP2015/072562 EP2015072562W WO2016050847A1 WO 2016050847 A1 WO2016050847 A1 WO 2016050847A1 EP 2015072562 W EP2015072562 W EP 2015072562W WO 2016050847 A1 WO2016050847 A1 WO 2016050847A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
gas
spout
supply line
slide
Prior art date
Application number
PCT/EP2015/072562
Other languages
German (de)
English (en)
Inventor
Uwe DE FRIES
Ulf SPETZLER
Original Assignee
Hermann Rauen Gmbh & Co. Vorm. Steinhandel Rauen
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 Hermann Rauen Gmbh & Co. Vorm. Steinhandel Rauen filed Critical Hermann Rauen Gmbh & Co. Vorm. Steinhandel Rauen
Priority to EP15775426.8A priority Critical patent/EP3200941B1/fr
Publication of WO2016050847A1 publication Critical patent/WO2016050847A1/fr

Links

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
    • B22D41/44—Consumable closure means, i.e. closure means being used only once
    • B22D41/46—Refractory plugging masses
    • B22D41/465—Unplugging a vessel discharge port
    • 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
    • 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
    • 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
    • B22D41/42—Features relating to gas injection

Definitions

  • the invention relates to a device for opening a spout of metallurgical vessels such as ladles or the like, wherein the spout is arranged on the lined bottom of the vessel, with a slide closure having at least two slide plates with a stationary and connected to the vessel slide plate and at least one with this in
  • Actuating contact sliding slide plate wherein all slide plates have at least one pouring opening and are mutually displaceable, that for opening and flowing out of the melt, the pouring openings are brought into coincidence and wherein the slide closure has a gas supply line, and a method for operating such a device.
  • the prior art also includes examples of constructions in which it has been attempted to operate the plug from the bottom of the container [such as US 2,863,189 or US 3,651,825).
  • slide closures for opening the pouring passages of metallurgical vessels have largely prevailed instead of the stopper train.
  • two or more in each case at least one opening having metallic or ceramic plates are moved against each other such that the
  • Openings can be brought into line to release the spout channel.
  • US 5 016 788 shows a slider closure with an opening.
  • the invention is based on the object, a
  • a stopper is arranged, the size of which exceeds the diameter of the spout channel and which is connected to the lining of the vessel, and that the gas supply line with a pressurized gas can be acted upon so that the plug from its closed position to release the spout channel is pneumatically.
  • the object is achieved by pneumatically releasing the stopper closing the discharge channel by opening the discharge channel by pressurizing the gas supply line with a pressurized gas, with the result that the stopper subsequently floats in the melt to its surface.
  • the device according to the invention or the method according to the invention permit electronic monitoring of the opening process, since the slide closure can be used as a valve. Due to the replacement of the Schieber Stahles by a plug of refractory material with preferably lower
  • Oxygen activity can be reduced in a simple manner also precursor or even avoided and there are no sand deposits in the outlet opening.
  • Burning can be reliably prevented.
  • a perforated brick is integrated into the refractory lining of the vessel above the slide closure.
  • the size of the opening is expediently dimensioned such that a wear sleeve can be arranged therein, through the opening of which the melt can flow off after opening the spout channel.
  • a further embodiment of the invention provides that the wear sleeve is funnel-shaped in its upper region. In this way, a uniform outflow of the melt is facilitated.
  • the geometry of the bottom of the plug is adapted to the particular shape of the wear sleeve. The shape can be conical, conical, rounded, step-shaped or combined.
  • Another teaching of the invention provides that the plug by means of a
  • Refractory mortar is set in the wear sleeve.
  • the amount of mortar used must be such that it ensures a sufficiently tight connection with the wear sleeve and the plug can nevertheless be "blown free” by the gas supplied.
  • a further preferred embodiment of the invention provides that the wear sleeve and the plugs fixed therein are prefabricated as a unit for insertion into a metallurgical vessel.
  • Such a prefabricated "set" in which the plug has already been mortared into the inner sleeve creates significant advantages in terms of installation time, since the entire part before each casting as a whole in the opening of the
  • a spout is disposed below the slide closure.
  • This spout is preferably connected to the lowermost slide plate, for example in a design as a replacement spout with a bayonet lock.
  • the gas supply line is arranged in the displaceable slide plate such that is connected to the opening of the stationary slide plate during the opening operation before the release of the spout channel of the outlet of the gas supply line.
  • the slide plate effectively acts as a valve for opening or closing the gas supply.
  • the gas supply line is connected to a reservoir acting as a gas reservoir. This ensures that the pressure from the reservoir is suddenly relaxed over the gas supply line into the opening of the wear sleeve and in this way the plug from the wear sleeve against the ferrostatic pressure of the melt pneumatically dissolves.
  • the gas storage is acted upon to avoid volume surges via a capillary with gas.
  • the occurrence of undesirable bumping can thus be countered.
  • Sliding valve is preheated.
  • FIG. 1 shows the schematic structure of a device according to the invention with a closed pouring channel in vertical section
  • FIG. 2 shows the article from FIG. 1 with the plug inserted into the wear sleeve, the device according to the invention with closed pouring channel and open gas supply line in vertical section,
  • FIG. 4 shows the article from FIG. 3 with the stopper removed,
  • Fig. 5 shows the device according to the invention with opened spout
  • Fig. 6 shows the article of Fig. 4 with a acting as a reservoir
  • a perforated brick 1 can be seen, which consists of a block
  • Refractory material is square or round in cross-section and which is inserted into the bottom of a - not shown - metallurgical vessel and integrated in the wear lining.
  • a stone In the opening of the hole 1 is a stone
  • Wear sleeve 2 which has a central opening 3, which is widened in a funnel shape in its upper portion 4.
  • a stationary slide plate 5 which in turn has an opening 6. Underneath you can see a further slide plate 7, which is also provided with an opening 8. This slide plate 7 is displaceable against the stationary slide plate 5 in the longitudinal direction. Below the lower slide plate 7, a spout 9 is arranged.
  • All openings 3, 6 and 8 and the unspecified opening of the spout 9 have the same diameter and form an outlet channel for the melt in the vessel when the slide valve is open.
  • the sliding slide plate 7 of the slider closure has a
  • a stopper 12 is arranged, the size of the diameter exceeds the spout channel and which is connected by means of a refractory cement 13 with the wear sleeve 2. Furthermore, the gas supply line 10 can be acted upon by a gas under pressure such that the plug 12 can be released pneumatically from its closed position for releasing the outlet channel.
  • the sliding slide plate 7 of the slide closure is in
  • the plug 12 is released from the wear sleeve 2 (FIG. 4) and floats in the melt.
  • the material for the plug 12 and the wear sleeve 2 is preferably an alumina cement.
  • a further movement of the displaceable slide plate 7 of the slide closure closes first the outlet 11 of the gas supply line 10 and then sets the outlet channel completely free, so that the melt can flow out of the vessel, as indicated by the arrow in Fig. 5.
  • Gas storage 14 is in communication, which in turn is supplied only via a capillary 15 with the pressurized gas. This is done for
  • the device according to the invention can be electronically controlled and / or regulated so that reproducible opening conditions can be achieved.
  • the illustrated device is only a preferred embodiment and is not intended to limit the scope of the invention in any way.
  • the invention can also be used with slide closures from three slide plates, if an improved fit accuracy is desired.

Landscapes

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

Abstract

L'invention concerne un dispositif d'ouverture d'un canal de coulée de cuves métallurgiques telles que des poches de coulée ou similaires, le canal de coulée étant disposé sur le fond revêtu de la cuve. Le dispositif comprend une fermeture à tiroir qui présente au moins deux plaques coulissantes (5, 7), une plaque coulissante (5) fixe et reliée à la cuve et au moins une plaque coulissante (7) mobile en contact actif avec la plaque coulissante, toutes les plaques coulissantes (5, 7) présentant au moins une ouverture de coulée (6, 8) et étant mobiles les unes par rapport aux autres, de telle manière que pour s'ouvrir et faire sortir la masse fondue, les ouvertures de coulée (6, 8) sont amenées en coïncidence. L'invention vise à apporter une amélioration de la qualité par réduction de l'apport d'oxyde dans les répartiteurs de coulée continue et les lingotières, et donc d'améliorer la rentabilité. A cet effet, selon l'invention, on n'utilise plus du tout de sable de remplissage de tiroir, du fait qu'un bouchon (12), dont la grosseur est supérieure au diamètre du canal de coulée et qui est relié au revêtement de la cuve, est disposé au-dessus de la fermeture à tiroir, et du fait que la fermeture à tiroir présente une conduite d'amenée de gaz (10), laquelle peut être exposée à l'effet d'un gaz sous pression, de telle manière que le bouchon (12) peut être retiré de façon pneumatique de sa position fermée pour libérer le canal de coulée.
PCT/EP2015/072562 2014-10-01 2015-09-30 Dispositif et procédé d'ouverture d'un canal de coulée de cuves métallurgiques WO2016050847A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15775426.8A EP3200941B1 (fr) 2014-10-01 2015-09-30 Dispositif et procédé d'ouverture d'un canal de coulée de cuves métallurgiques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014114301.9A DE102014114301A1 (de) 2014-10-01 2014-10-01 Vorrichtung und Verfahren zum Öffnen eines Ausgusskanals von metallurgischen Gefäßen
DE102014114301.9 2014-10-01

Publications (1)

Publication Number Publication Date
WO2016050847A1 true WO2016050847A1 (fr) 2016-04-07

Family

ID=54256739

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/072562 WO2016050847A1 (fr) 2014-10-01 2015-09-30 Dispositif et procédé d'ouverture d'un canal de coulée de cuves métallurgiques

Country Status (3)

Country Link
EP (1) EP3200941B1 (fr)
DE (1) DE102014114301A1 (fr)
WO (1) WO2016050847A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113976873A (zh) * 2021-10-13 2022-01-28 邯郸钢铁集团有限责任公司 一种钢包水口下注引流砂装置及其工艺
CN117961044A (zh) * 2024-04-01 2024-05-03 华北理工大学 一种钢包出钢口封堵机构及其出钢口控流方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018108569A1 (de) * 2017-04-20 2018-10-25 Ksm Castings Group Gmbh Trennschiebersystem, Gießanlage und Gießverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427866A1 (fr) * 1978-06-05 1980-01-04 Eurdic Procede de fermeture et d'ouverture d'un orifice pour conteneurs metallurgiques et dispositif pour sa mise en oeuvre
JPS59223156A (ja) * 1983-06-03 1984-12-14 Nippon Steel Corp 溶融金属容器の初期開孔方法
WO1994021406A1 (fr) * 1992-03-11 1994-09-29 Ifa Institutet For Produktions & Arbetsplatsutveckling Ab Ameliorations relatives a des cuves de manipulation de metal fondu
DE19620592A1 (de) * 1996-05-22 1997-11-27 Dislich Margrit Verfahren zum Ausgießen einer Stahlschmelze
JPH10109157A (ja) * 1996-10-01 1998-04-28 Kurosaki Refract Co Ltd 流量調整用ノズル孔の充填構造とその開孔方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863189A (en) 1958-02-03 1958-12-09 Harold S Beck Ladle nozzle construction
US3651825A (en) 1969-10-24 1972-03-28 Francis P Sury Stopper plug valve for hot metal ladles
FR2533473A1 (fr) * 1982-09-28 1984-03-30 Detalle Richard Mode de controle et d'ouverture des orifices de coulee des recipients conteneurs de metaux liquides et autres, et dispositif de mise en oeuvre
FR2627715B1 (fr) 1988-02-26 1991-10-11 Vesuvius Sa Busette de coulee pour ouverture assistee, dispositif l'incorporant et procede de mise en oeuvre
JPH0381054A (ja) * 1989-08-22 1991-04-05 Nkk Corp 取鍋内溶湯の注入方法
JPH05253666A (ja) * 1992-01-10 1993-10-05 Toshiba Ceramics Co Ltd スライドゲートの開孔方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427866A1 (fr) * 1978-06-05 1980-01-04 Eurdic Procede de fermeture et d'ouverture d'un orifice pour conteneurs metallurgiques et dispositif pour sa mise en oeuvre
JPS59223156A (ja) * 1983-06-03 1984-12-14 Nippon Steel Corp 溶融金属容器の初期開孔方法
WO1994021406A1 (fr) * 1992-03-11 1994-09-29 Ifa Institutet For Produktions & Arbetsplatsutveckling Ab Ameliorations relatives a des cuves de manipulation de metal fondu
DE19620592A1 (de) * 1996-05-22 1997-11-27 Dislich Margrit Verfahren zum Ausgießen einer Stahlschmelze
JPH10109157A (ja) * 1996-10-01 1998-04-28 Kurosaki Refract Co Ltd 流量調整用ノズル孔の充填構造とその開孔方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113976873A (zh) * 2021-10-13 2022-01-28 邯郸钢铁集团有限责任公司 一种钢包水口下注引流砂装置及其工艺
CN113976873B (zh) * 2021-10-13 2023-02-17 邯郸钢铁集团有限责任公司 一种钢包水口下注引流砂装置及其工艺
CN117961044A (zh) * 2024-04-01 2024-05-03 华北理工大学 一种钢包出钢口封堵机构及其出钢口控流方法

Also Published As

Publication number Publication date
DE102014114301A1 (de) 2016-04-07
EP3200941A1 (fr) 2017-08-09
EP3200941B1 (fr) 2020-02-26

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