EP0537195B1 - Zufuhr- und austauschvorrichtung eines tauchrohres - Google Patents

Zufuhr- und austauschvorrichtung eines tauchrohres Download PDF

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Publication number
EP0537195B1
EP0537195B1 EP91911206A EP91911206A EP0537195B1 EP 0537195 B1 EP0537195 B1 EP 0537195B1 EP 91911206 A EP91911206 A EP 91911206A EP 91911206 A EP91911206 A EP 91911206A EP 0537195 B1 EP0537195 B1 EP 0537195B1
Authority
EP
European Patent Office
Prior art keywords
lever
movable plate
teeming
plate
movable
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
EP91911206A
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English (en)
French (fr)
Other versions
EP0537195A1 (de
Inventor
Stanislav Szadkowski
Stanislav Knapik
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.)
International Industrial Engineering SA
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International Industrial Engineering 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 International Industrial Engineering SA filed Critical International Industrial Engineering SA
Publication of EP0537195A1 publication Critical patent/EP0537195A1/de
Application granted granted Critical
Publication of EP0537195B1 publication Critical patent/EP0537195B1/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
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • the present invention relates to a device for supplying and exchanging a pouring tube for a metal pouring container from the bottom in which a movable closure plate and / or a replacement pouring tube attached to a movable plate is placed by a common transverse rim next to a movable plate carrying a pouring tube to be replaced or against a closure plate to be moved away from the tap hole, said movable replacement plate and that to be replaced being slidably mounted on guides capable of transmitting an upward thrust force and of guiding the translational movement of the plates and of the pouring tubes parallel to themselves under the action of a pneumatic cylinder in a direction perpendicular to the axis of the hole pouring, from a loading position to a service position in the axis of the container tap hole and from the service position to a release position, so as to per put the exchange of the tube without lifting the container.
  • the pouring tubes intended to lead the molten metal into a mold or a mold well are wear parts which are highly stressed. They are so so that their service life limits the casting time.
  • Document EP-A-0192019 discloses a device for supplying and exchanging a pouring tube with a movable attached plate for a steel or metallurgical container which can be closed off at the bottom using a stopper or a sliding closure.
  • the supply and exchange device comprises a movable refractory plate capable of sliding, under the action of a jack, along an upper reference plate, from a loading position to a service position or a closed position in alignment with the axis of a tap hole.
  • Guide rails apply the movable plate, in sealed contact, against the upper reference plate under the effect of an upward thrust transmitted by a first end of levers on which act downwards at an opposite end of the helical springs taking support on the frame of the supply and exchange device.
  • the guide rails are parallel to each other and form a slightly inclined plane at an angle of 5 to 10 ° relative to the reference plane.
  • a double pneumatic cylinder ensures the linear movement of the movable plate carrying the pouring tube.
  • the replacement tube is brought by pivoting around a substantially horizontal axis in the mold or the mold well in order to allow the exchange of pouring tube without having to lift the distributor.
  • the movable plate intended to slide along a rectilinear trajectory along the upper reference plate forms with respect to the latter an inclined surface whose inclination is determined by the slope of the trajectory of the guide rails.
  • the inclination of the guide rails relative to the reference plane of the upper plate makes it possible to obtain a progressive tightening of the movable plate attached to the pouring tube when the latter is brought into alignment with the pouring orifice. but has the drawback of making the junction of the two plates not leaktight in the vicinity of the pouring orifice.
  • the parallelism of the bottom plate and of the movable plate carrying the pouring tube is not perfect during the engagement of the movable plate in the sealing zone surrounding the pouring orifice. Liquid metal can seep between the upper reference plate and the movable plate.
  • the infiltrated metal forms a crust which alters the flatness of the contact surfaces and risks causing the movable plate to jam and being a cause of non-sealing of a contact zone of the two plates in the immediate vicinity of the pouring orifice.
  • the present invention aims to overcome this drawback and proposes for this purpose a device which ensures the parallelism of the replacement movable plate with the upper reference plate, as soon as the tap hole is covered by said movable plate brought into the immediate vicinity of the pouring orifice by a pneumatic cylinder.
  • the device for supplying and exchanging a pouring tube is of the type described in the first paragraph of this specification.
  • This device is characterized in that it comprises means for imparting to the movable plate a tilting movement around a frontal horizontal edge of the movable plate engaged in the area adjacent to the pouring orifice, so as to make the movable plate strictly parallel to the underside of the upper plate.
  • This tilting movement makes possible the sealed contact of the movable plate against the upper plate and prevents any leakage of liquid metal during the exchange of the pouring tube or when the pouring orifice is closed by a movable plate d shutter.
  • the means intended to give the movable plate a tilting movement consist of a lever acting upwards on a rear part of the movable plate opposite the front edge engaged in the sealing zone surrounding the pouring hole of the reference plate.
  • the lever is a portion of guide rail fixed by an end remote from the taphole to a rocker arm comprising, a crank articulated around a horizontal shaft, against which a piston pushed back by a helical spring as soon as the piston is released by a double pneumatic cylinder intended to slide a movable plate along the guide rails.
  • the rocker arm comprises a first arm fixed in a direction normal to the surface of a cylindrical ring mounted on a horizontal shaft around which is wound a torsion spring fixed by a first end in the ring and by a second end in a fixed frame of the supply device, the ring being displaced angularly around the shaft against the spring under the action of the thrust exerted by the double jack on a second arm s 'extending perpendicular to the first arm in a radial plane of the cylindrical ring.
  • FIG. 1 shows a device for supplying and exchanging a pouring tube according to the invention, generally designated by the reference sign 1, mounted under a tapping distributor 5 in the vicinity of the tapping hole 7.
  • the distributor can possibly already be fitted with a sliding closing device. Generally the shutter is simply a stopper (not shown).
  • the device 1 is intended to allow the supply of a reserve pouring tube 2 attached to a movable plate 3, in the loading position 14, and the replacement of a worn tube 2 ', attached to a movable plate 3' , in service position 14 '. ( Figure 2)
  • the seal between the internal nozzle 39 and the reference plate is ensured by a sealing collar 19.
  • the upper reference plate 6 is optionally formed of several independent refractory elements.
  • the refractory element surrounding the taphole is optionally provided, on a lower face, around a pouring orifice 27, with a groove 40 connected to a duct 41 for supplying argon.
  • Two guide rails 9 have an inclined stroke relative to the reference plate 6.
  • the guide rails 9 are divided into two fixed rail sections 9 ′ secured to a frame intended to be mounted under the tundish 5 in the vicinity of the tap hole 7 and three movable rail sections 9 '' and arranged between the two respective fixed rail sections in their mutual extension.
  • the sections of movable guide rails 9 '' are each mounted at the end of a lever pivoting about an axis AA '. Each lever is subjected at its opposite end to the action of a spring 10 which, by pushing this opposite end down, applies the movable rail sections upwards.
  • the slope of the guide rails 9 makes it possible to obtain a progressive tightening of the movable plate 3 of a pouring tube 2 against the upper reference plate 6 when any of the pouring tubes 2, 2 'is close to the taphole 7. This tightening decreases when the movable plate 3 moves away from it, allowing easy removal of the above-mentioned plate in the release position 17 on the other side of the taphole 7.
  • the movable plate 3 When the movable plate 3 engages in the sealing zone surrounding the tap hole 7, the movable plate 3 rests on the guide rails 9 and has a relatively small inclination relative to the upper reference plate 6 but sufficient to cause liquid metal to infiltrate between the upper reference plate 6 and the movable plate 3.
  • the linear displacement of the mobile plates 3, 3 ′ is ensured by a retractable push rod 15 actuated by a pair of pneumatic cylinders 16, 16 ′ arranged in parallel in order to provide the force necessary to allow loading. casting tube 2 quickly, making the best use of the small space available in height.
  • the rods 11 and 11 'of the cylinders 16 and 16' are interconnected by a movable frame 13 carrying the retractable push rod 15.
  • the purpose of the device according to the invention is to ensure parallelism between the movable plate 3 and the upper reference plate 6 from the start of the operation of supplying and loading the reserve pouring tube 2.
  • the device according to the invention comprises a rocker arm 20.
  • the rocker arm 20 comprises a frame 21 fixed to the frame 4 of the device for feeding and loading the pouring tube, in the extension of one of the thrust cylinders 16 , 16 ', preferably, of the jack 16' closest to the guide rails 9 of the supply device.
  • the frame 21 houses a cylindrical housing 22 in which is housed a helical spring 23 compressed under the action of a piston head 24 subjected to the thrust of the movable frame 13 which connects the rods of the double pneumatic cylinder 16, 16 'intended to slide a movable plate 3 along the guide rails from the loading position 14 to the service position 14 '.
  • the double thrust cylinder 16, 16 'brought into the extended position moves the movable frame 13 which comes to bear against the head of the piston 24 of the rocker arm 20.
  • the head of the piston 24 of the rocker arm 20 compresses the helical spring 23 in the housing 22 and allows a crankset 38 coupled to a bent lever 26 to pivot about a horizontal axis HH 'and to lower the lever 26 to a loading position in the extension of the slight slope of the guide rails 9.
  • the retractable pusher arm 15 is removed and a new pouring tube 2 placed on the guide rails 9 ( Figure 5). The new pouring tube is then placed in the loading position 14 and the retractable pusher arm 15 is released from the movable frame 13.
  • the device brings the movable plate 3 horizontally by raising the part of the movable plate furthest from the pouring orifice 27, immediately after having put in place the pouring tube 2 attached to the movable plate in the loading position 14, before or while the movable plate 3 slides towards a service position 14 'in alignment with the pouring axis LL' of the tap hole 7.
  • the tilting movement has the advantage of making it possible to apply the mobile plate 3 during translation under the action of the pneumatic cylinders 16, 16 ′, in leaktight manner against the upper reference plate 6 when changing the tube. It prevents any leakage of liquid metal between the movable plate 3 and the upper reference plate 6 at the start of the tube change operation.
  • FIG. 7 A second embodiment of the device for feeding and loading a pouring tube 2 is shown in FIG. 7. It includes a rocker arm 20 comprising two arms 30 and 31: a first arm 30 is a lever extending in a direction normal to the surface of a cylindrical ring 32 and the second arm 31 is a tab extending in a direction tangent to the surface of the ring 32, that is to say in a radial plane of the ring 32 , and perpendicular to lever 30.
  • the cylindrical housing 32 houses a torsion spring 33, the ends of which are anchored to the ring 32 and to the frame 4 of the supply device.
  • the movable frame 13 of the double pneumatic cylinder 16, 16 ′ pushes the first arm 30 down against the torsion spring 33 and returns, by pivoting around the shaft 34 in the direction of the arrow X, a lever 26 downwards, towards a position in which the introduction of a new pouring tube 2 is easy.
  • the lever 26 is fixed on the shaft 34 using a screw 35.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Basic Packing Technique (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Furnace Charging Or Discharging (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Chutes (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Making Paper Articles (AREA)

Claims (6)

  1. Zufuhr- und Austauschvorrichtung (1) für ein Tauchrohr (2) für einen Sammelbehälter (5) für Metallabstich aus dem Boden, bei der eine Verschlußplatte und/oder ein zum Austausch vorgesehenes Tauchrohr (2) auf einer beweglichen Platte (3) angebracht sind, die über eine gemeisame seitliche Randleiste Kontakt mit einer beweglichen Platte (3'), welche ein auszutauschendes Tauchrohr (2') trägt, oder mit einer von der Austrittsöffnung zu entfernenden Verschlußplatte hat, wobei die bewegliche Platte zum Austausch (3) und die auszutauschende Platte (3') verschiebbar auf Führungsschienen (9) angeordnet sind, die geeignet sind, einen Druck nach oben zu übertragen und die Verschiebung der Platten (3, 3') und der Tauchrohre (2, 2') unter der Wirkung eines Pneumatikzylinders (16, 16') parallel zueinander in einer Richtung senkrecht zur Achse (L, L') der Austrittsöffnung von einer Füllstellung zu einer auf die Achse (L, L') der Austrittsöffnung (7) des Sammelbehälters (5) gerichteten Betriebstellung und von der Betriebstellung zu einer Nebenstellung so zu führen, daß der Austausch des Rohres ohne Anheben des Sammelbehälters (5) ermöglicht ist, dadurch gekennzeichnet, daß sie einen Kipphebel (20) umfaßt, der einen Hebel (26) zwischen einer unteren Füllstellung und einer erhöhten Betriebstellung so betätigt, daß die bewegliche Platte (3) eine Kippbewegung um eine vordere waagerechte Kante der beweglichen Platte, welche in Eingriff mit einer Dichtungszone steht, welche eine auf einer Referenzplatte (6) angeordnete Austrittsöffnung (27) umgibt, in der Weise ausführt, daß sich die bewegliche Platte (3) genau parallel zu der unteren Seite der oberen Referenzplatte (6) befindet.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Kipphebel (20) den Hebel (26) um einen Bruchteil einer Umdrehung so ausschwenkt, daß der Hebel in der Betriebstellung nach oben auf den hinteren Bereich der bewegliche Platte gegenüber der vorderen Kante einwirkt, welche gegen die die Austrittsöffnung (27) umgegebende Dichtungszone der Referenzplatte (6) anliegt.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Hebel (26) in der unteren Füllstellung in Verlängerung der Führungsschienen (9) wirkt.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Hebel (26) an dem von der Austrittsöffnung entfernten Ende des Kipphebels fixiert ist, der einen Kurbelzapfen (38) umfaßt, welcher um eine waagerechte Welle (H, H') frei beweglich ist, wobei ein mit dem Kurbelzapfen zusammenwirkender Kolben (24) durch eine Schraubenfeder (23) zurückgedrückt wird, sobald der Kolben (24) aus dem doppelten Pneumatikzylinder (16, 16') von einem beweglichen Rahmen (13) freigegeben wird, der zur Verschiebung einer beweglichen Platte (3, 3') entlang der Führungsschienen (9) dient.
  5. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kipphebel (20) einen mit einem gebogenen Hebel (26) gekoppelten Kurbelzapfen (38) umfaßt und der Hebel (26) um eine feste horizontale Achse (H, H') schwenkbar ist, wobei der Hebel von dem Kurbelzapfen (38) betätigt wird, der unter der Wirkung eines doppelten Pneumatikzylinders (16, 16') um einen Bruchteil einer Umdrehung winkelverschoben wird, damit eine bewegliche Platte (3) entlang der Führungsschienen (9) in eine Betriebsstellung gleitet, in der der Hebel (26) nach oben auf den hinteren Bereich der beweglichen Platte (3) gegenüber der vorderen Kante, die gegen eine die Austrittsöffunung (27) umgegebende Dichtungszone anliegt, zu einer unteren Füllstellung des zum Austausch vorgesehenen Tauchrohres (2) gegen eine zylindrische Schraubenfeder (23) wirkt, die den Hebel (26) in die Betriebsstellung zurückbringt, sobald der Hebel von dem doppelten Pneumatikzylinder (16, 16') freigegeben wird.
  6. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Kipphebel (20) einen ersten Arm (30) umfaßt, der in einer normalen Richtung an einem zylindrischen Ring (32) befestigt ist, welcher auf einer horizontalen Welle montiert ist, um die eine Torsionsfeder (33) gewickelt ist, welche an einem Ende in dem Ring (32) und am anderen Ende an dem festen Rahmen (4) der Zufuhrvorrichtung befestigt ist, wobei der Ring (32) um die Achse gegen die Torsionsfeder (33) unter der Wirkung eines durch den doppelten Pneumatikzylinder (16, 16') auf den beweglichen Rahmen (13) über einen zweiten Arm (31) ausgeübten Drucks winkelverschoben wird, der rechtwinklig zu dem Hebel (26) und radial in bezug auf den zylindrischen Ring (32) angeordnet ist.
EP91911206A 1990-07-04 1991-06-20 Zufuhr- und austauschvorrichtung eines tauchrohres Expired - Lifetime EP0537195B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
WOPCT/BE90/00039 1990-07-04
PCT/BE1990/000039 WO1992000821A1 (fr) 1990-07-04 1990-07-04 Dispositif ameliore d'amenee et d'echange d'un tube de coulee
PCT/BE1991/000039 WO1992000822A1 (fr) 1990-07-04 1991-06-20 Dispositif d'amenee et d'echange d'un tube de coulee

Publications (2)

Publication Number Publication Date
EP0537195A1 EP0537195A1 (de) 1993-04-21
EP0537195B1 true EP0537195B1 (de) 1994-04-20

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EP91911206A Expired - Lifetime EP0537195B1 (de) 1990-07-04 1991-06-20 Zufuhr- und austauschvorrichtung eines tauchrohres

Country Status (23)

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US (1) US5351865A (de)
EP (1) EP0537195B1 (de)
JP (1) JP2991495B2 (de)
KR (1) KR0156228B1 (de)
CN (1) CN1046644C (de)
AR (1) AR247125A1 (de)
AT (1) ATE104577T1 (de)
AU (1) AU650884B2 (de)
BR (1) BR9106616A (de)
CA (1) CA2086532C (de)
CZ (1) CZ286982B6 (de)
DE (1) DE69101782T2 (de)
ES (1) ES2051595T3 (de)
FI (1) FI96391C (de)
HR (1) HRP940046B1 (de)
PL (1) PL168904B1 (de)
PT (1) PT98213B (de)
RU (1) RU2060107C1 (de)
SI (1) SI9111168A (de)
TR (1) TR25322A (de)
WO (2) WO1992000821A1 (de)
YU (1) YU48510B (de)
ZA (1) ZA915170B (de)

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EP2386368A1 (de) * 2010-03-19 2011-11-16 Vesuvius Group S.A Interne Düse für den Transfer von flüssigem Metall in einem Behälter, Einspannsystem für diese Düse und Ausflussvorrichtung
PL2547473T3 (pl) 2010-03-19 2015-03-31 Vesuvius Group Sa Urządzenie do utrzymywania i wymiany płyty odlewniczej w instalacji odlewniczej, metalowa osłona na płytę odlewniczą i płyta odlewnicza, wyposażona w środki oddziałujące z czujnikiem urządzenia
JP5201205B2 (ja) * 2010-12-27 2013-06-05 Ｊｆｅスチール株式会社 浸漬ノズル支持用鍵盤構造
KR101829949B1 (ko) * 2011-01-11 2018-02-19 스토핑크 아크티엔게젤샤프트 야금 제품을 제조하기 위한 더미 플레이트를 가진 노즐 튜브 교환기
CN104203453B (zh) * 2012-04-09 2016-04-20 杰富意钢铁株式会社 浸渍水口支承用键盘构造
JP6495900B2 (ja) * 2013-10-14 2019-04-03 ベスビウス グループ，ソシエテ アノニム レードルシュラウドをコレクタノズルに可逆的に連結するための連結装置、自立支持型レードルシュラウド、自立支持型レードルシュラウドのキット、及びレードルシュラウドをコレクタノズルに連結するための方法
JP6402122B2 (ja) 2016-02-01 2018-10-10 東京窯業株式会社 浸漬ノズル交換装置
CN107282902B (zh) * 2016-04-04 2018-12-04 鞍钢股份有限公司 一种浸入式水口的更换方法

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Publication number Publication date
AR247125A1 (es) 1994-11-30
DE69101782D1 (de) 1994-05-26
CN1046644C (zh) 1999-11-24
ZA915170B (en) 1992-04-29
KR930701251A (ko) 1993-06-11
YU116891A (sh) 1995-03-27
CS198191A3 (en) 1992-02-19
PT98213B (pt) 1999-02-26
BR9106616A (pt) 1993-06-01
JP2991495B2 (ja) 1999-12-20
ATE104577T1 (de) 1994-05-15
YU48510B (sh) 1998-09-18
RU2060107C1 (ru) 1996-05-20
ES2051595T3 (es) 1994-06-16
EP0537195A1 (de) 1993-04-21
FI96391B (fi) 1996-03-15
TR25322A (tr) 1993-01-01
CA2086532A1 (en) 1992-01-05
CN1057798A (zh) 1992-01-15
WO1992000821A1 (fr) 1992-01-23
FI925823A0 (fi) 1992-12-22
FI925823A (fi) 1992-12-22
AU7991791A (en) 1992-02-04
PT98213A (pt) 1993-08-31
CA2086532C (en) 2001-06-05
HRP940046B1 (en) 1999-02-28
US5351865A (en) 1994-10-04
FI96391C (fi) 1996-06-25
AU650884B2 (en) 1994-07-07
PL168904B1 (pl) 1996-05-31
SI9111168A (en) 1997-08-31
HRP940046A2 (en) 1996-04-30
CZ286982B6 (cs) 2000-08-16
JPH05508348A (ja) 1993-11-25
KR0156228B1 (ko) 1998-11-16
WO1992000822A1 (fr) 1992-01-23
DE69101782T2 (de) 1994-09-08

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