EP0137961B1 - Dispositif extracteur pour une brique pour lavage au gaz - Google Patents

Dispositif extracteur pour une brique pour lavage au gaz Download PDF

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Publication number
EP0137961B1
EP0137961B1 EP84109793A EP84109793A EP0137961B1 EP 0137961 B1 EP0137961 B1 EP 0137961B1 EP 84109793 A EP84109793 A EP 84109793A EP 84109793 A EP84109793 A EP 84109793A EP 0137961 B1 EP0137961 B1 EP 0137961B1
Authority
EP
European Patent Office
Prior art keywords
brick
gas
coupling part
coupling
drawbar
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
Application number
EP84109793A
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German (de)
English (en)
Other versions
EP0137961A1 (fr
EP0137961B2 (fr
Inventor
Hans Dipl.-Ing. Höffgen
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.)
RADEX DEUTSCHLAND AKTIENGESELLSCHAFT FUER FEUERFES
Original Assignee
RADEX DEUTSCHLAND AG fur FEUERFESTE ERZEUGNISSE
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
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Priority claimed from DE19833330105 external-priority patent/DE3330105C2/de
Priority claimed from DE19843402444 external-priority patent/DE3402444A1/de
Application filed by RADEX DEUTSCHLAND AG fur FEUERFESTE ERZEUGNISSE filed Critical RADEX DEUTSCHLAND AG fur FEUERFESTE ERZEUGNISSE
Priority to AT84109793T priority Critical patent/ATE32751T1/de
Publication of EP0137961A1 publication Critical patent/EP0137961A1/fr
Application granted granted Critical
Publication of EP0137961B1 publication Critical patent/EP0137961B1/fr
Publication of EP0137961B2 publication Critical patent/EP0137961B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator

Definitions

  • the invention relates to a device for pulling out a sheet-metal-coated gas purging plug provided with a central gas connection pipe from a perforated brick or a perforated sleeve, consisting of a frame for support on the outside of the perforated brick or perforated sleeve or on the outer wall of the metallurgical vessel, one in the Frame relative to this axially displaceable pull rod which can be aligned in alignment with the central axis of the gas purging plug, a coupling device provided on the pull rod for coupling the end of the pull rod to the gas purging plug and a drive device for displacing the pull rod in the direction away from the perforated block.
  • gas purging stone sets are very often used in the bottom or the side walls of metallurgical vessels in order to treat the melt with appropriate purging gases.
  • the gas purging stones are wear parts that have to be replaced from time to time.
  • pulling out the worn gas purging stones from the perforated stone or the perforated stone sleeve presents considerable difficulties.
  • the bottom of the sink In the case of gas shrouds covered with sheet metal, which cannot be easily removed, the bottom of the sink must be welded on and then the sink removed from the outside, and then the sheet of the sheath must be burned off. Such a procedure is lengthy, cumbersome and involves considerable dirt pollution for the fitters.
  • a device for pulling out a gas purging plug from a perforated brick which comprises a frame for support on the outer wall of the metallurgical vessel, a threaded rod which is displaceable in the axial direction relative to the frame Coupling device provided on the pull rod for coupling to the gas purging plug and a screw-like drive device for displacing the pull rod in the axial direction to the purging plug.
  • the sink is one without sheet metal cladding. At its outer end, the sink is provided with a flange which bears against a base plate via a seal. This is provided with pins which are locked on an outer clamping plate.
  • the clamping plate lies against the sink with the interposition of a seal and presses the stopper in sealing contact with the base plate and the conical hole in the perforated block.
  • the flushing gas, with which the molten metal is to be treated, is accessed through a channel formed on the clamping plate, which is arranged radially to the flushing stone.
  • a nut, which is welded to the outside of the clamping plate, is used for coupling to the tie rod end.
  • the invention has for its object to provide a device with which a sheet-coated gas purging plug with a central gas connection pipe can be pulled out of the perforated brick or the perforated brick sleeve with simple means.
  • a separate base or clamping plate, on which the gas purging plug could be pulled out as in the known device, is not present in a sheet-metal-coated gas purging plug with a central gas connection.
  • the coupling device has a coupling part provided at the end of the pull rod with at least one bore running transversely to the pull rod, a counter-coupling part provided on the sheet metal base of the gas flushing plug with likewise at least one bore running transversely to the sink axis and one through the mutually aligned bores has pluggable coupling bolts.
  • the coupling part provided on the pull rod preferably has a cylindrical end section with two mutually aligned bores.
  • the counter coupling part is expediently designed as a separate cylinder with two mutually aligned bores, which is longer than the gas connecting pipe and surrounds it concentrically, the distance between the bores from the sheet metal bottom of the gas purging plug being greater is the length of the gas connection pipe.
  • the inner diameter of the cylindrical end portion of the coupling part provided on the pull rod should be larger than the outer diameter of the cylindrical counter-coupling part provided on the sink.
  • the coupling device consists of two interlocking cylindrical coupling parts, that one of the coupling parts is provided with at least two radial pins inserted into the cylindrical wall, projecting inwards and / or outwards, and that the other coupling part has a corresponding one Number of slots extending from the outer end with a width suitable for receiving the pins in the same circumferential distribution, each initially run approximately axially and then more than one pin diameter perpendicular to it in the circumferential direction, the coupling parts being able to be pushed into one another and locked together without hindrance.
  • the gas connecting pipe preferably projects beyond the coupling part attached to the gas purging plug for free access.
  • the gas connection pipe can easily protrude beyond the coupling part attached to the gas purging plug, so that it is freely accessible.
  • the coupling part containing the pins can either overlap the mating coupling part from the outside or can be inserted into it from the inside. Accordingly, the pins are either to be arranged so that they protrude substantially inside the coupling part or protrude from the outside into the slots of the mating coupling part. Alternatively, the pins can also protrude outwards beyond the coupling part and protrude outwards from the slots.
  • the pins preferably consist of round steel pieces which are fixed with a weld in the cylindrical coupling part, essentially inwardly projecting pins offer a particularly favorable possibility of manufacturing the coupling part, while outwardly projecting pins simplify the locking process by not one in itself Allow absolutely necessary optical control of the relative position between pin and slots.
  • the ends of the slots can be provided with bulges in a preferred embodiment, into which the pins can snap. As soon as the tie rod is then braced against the perforated brick, the connection can no longer be released.
  • the design of the coupling device according to the invention offers the particular advantage that it is possible to design the gas connecting pipe from the inside to protrude beyond the coupling counterpart arranged on the gas purging plug. This provides an improved possibility of connecting a gas supply line to the gas purging plug unhindered in order to produce the operational readiness, without the possibility of coupling a pull rod being impaired in any way. If the pull rod is supported by a frame against the outer wall of the vessel and is axially displaceable relative to this frame, it is particularly advantageous to design the pull rod as a threaded spindle and to equip it with a handwheel. that can be supported against a fixed or displaceable part of the frame and can be locked against the spindle.
  • the handwheel can be placed at a distance from the frame and locked with the pull rod, so that it is possible to bring about the locking of the coupling parts by axially shifting and turning the handwheel.
  • the operating possibility of the coupling device is hereby improved again.
  • the possibility of locking between the handwheel and the drawbar preferably consists of a cross hole in the handwheel, an elongated hole in the drawbar and an insertable cotter pin. The elongated hole makes it easier to find the covering of the openings penetrated by the split pin. After locking the coupling parts, the cotter pin can be pulled and the handwheel can be brought into contact with the frame. The gas purging plug is then pulled out by further turning the handwheel.
  • the frame of the device is preferably designed as a tripod, the three support legs sitting on a central guide sleeve for the pull rod. Such a frame can be supported comfortably and steadily on any surface.
  • a receptacle holder for the drive device for displacing the pull rod can be provided on the frame following the guide sleeve.
  • a hollow piston cylinder which can be pressurized with gas is preferably provided as the drive device, which is arranged in alignment with the guide sleeve and through which the pull rod extends, the pull rod being lockable on or in the hollow piston at least during the extraction process.
  • the pull rod can be designed as a threaded spindle, on the threaded spindle on the from the hollow piston protruding end, which is located on the opposite side of the coupling device, sits a handwheel with a corresponding internal thread, which can be screwed in the direction of the front side of the hollow piston and can be brought into contact with a contact surface on the front side of the hollow piston. In this way, the handwheel can be used to lock the pull rod relative to the hollow piston.
  • the invention relates to a specially designed gas purging plug which is equipped with the corresponding mating coupling part.
  • the pull-out device essentially consists of a frame 1, which is supported on a perforated brick 2 or a perforated stone sleeve or else on the outer wall of a metallurgical vessel not shown in the drawing, a pull rod guided in the frame 1 3, which can be driven at least in the direction away from the perforated brick 2, and a coupling device 4 which can be fastened with the pull rod 3 to a gas purging brick 5 provided with a sheet metal jacket.
  • the frame 1 has a central guide sleeve 6, in which the pull rod 3 is guided in a longitudinally displaceable manner.
  • the frame 1 has a receiving holder 9 for a drive device 10 for the longitudinal displacement of the pull rod 3.
  • the receiving holder is designed as a slotted cylinder 11, in which a hollow piston cylinder 12 serving as a drive device is seated. In the present case, a single-acting hollow piston cylinder is sufficient, which can be pressurized on one side via a feed line 13.
  • the pull rod 3 is displaced in the axial direction by pressurization and entrainment of the handwheel 15.
  • the coupling device 4 consists of a coupling part 16 provided at the end of the pull rod 3 and a mating coupling part 18 seated on the sheet metal base 17 of the gas purging plug 5.
  • the coupling part 16 seated on the pull rod 3 is bell-shaped and has a cylindrical end section 19 with two bores 20 aligned with one another on, which are formed on diametrically opposite sides of the end portion 19.
  • the bell-shaped constricted section 21 of the coupling part 16 is provided with a central threaded bore 22, with which the coupling part 16 is screwed onto the pull rod 3 designed as a threaded spindle. With the help of a circumferential weld seam 23, the threaded spindle is fixed non-rotatably on the coupling part 16.
  • the mating coupling part 18 is designed as a cylinder 24, which is connected at one end to the sheet metal base 17 of the gas purging plug via a weld seam 25.
  • the coupling cylinder 24 surrounds the gas connection pipe 26 with a sufficient distance so that it is not in the way when connecting the gas connection line.
  • the coupling cylinder 24 is longer than the gas connection pipe 26 seated on the sheet metal base 17 and has in its end protruding beyond the gas connection pipe 26 on diametrically opposite sides two mutually aligned bores 27 which have approximately the same diameter as those in the coupling part 16 provided holes 20.
  • the outside diameter of the coupling cylinder 24 is somewhat smaller than the inside diameter of the cylindrical end section 19 of the coupling part 16, so that the coupling part 16 can be put over the coupling cylinder 24.
  • a coupling bolt 28 is inserted through the four mutually aligned bores and thus the positive connection between the pull rod 3 and the gas purging plug 5 is established.
  • the coupling pin 28 can be captively attached to the coupling part 16 by means of a chain 29.
  • the frame 1 To pull out a gas purging plug 5 from a perforated brick 2, the frame 1 is placed with its three support legs 7 against the perforated brick 2 or the outer wall of the corresponding metallurgical vessel and then the pull rod is moved so far in the direction of the perforated brick 5 that the coupling part 16 over the clutch cylinder 24 engages and the clutch pin 28 can be inserted. Then it will be the handwheel 15 is rotated so far in the direction of the hollow piston cylinder 12 until it rests on the facing end face of the hollow piston 14. The hollow piston cylinder 12 is then acted upon by a pressure medium via the feed line 13, as a result of which the hollow piston 14 moves out of the cylinder 12 and takes the pull rod 3 with it via the handwheel 15. By shifting the pull rod 3, the coupled sink 5 is automatically pulled out of the perforated block 2.
  • the two devices essentially differ in their coupling device.
  • the coupling device 4 in the second embodiment consists of a coupling part 16 arranged at the end of the pull rod 3 and a coupling counterpart 18 arranged on the sheet metal base of the gas purging plug 5.
  • the coupling part 16 connected to the pull rod 3 is designed as a hollow cylinder and by means of a conical transition piece 21 with the pull rod 3 connected.
  • the conical transition piece 21 is provided with an approach with a central threaded bore 22 which is screwed onto the pull rod 3 designed as a threaded spindle.
  • the coupling part 16 and the pull rod 3 are connected to one another in a rotationally fixed manner by means of a circumferential weld seam 23.
  • the coupling part 16 has two inwardly projecting pins 34 inserted in bores 21, each of which is fastened on the outside with a circumferential weld seam 35.
  • the coupling counterpart 18 is also designed as a hollow cylinder and is connected at one end to the sheet metal base 17 of the gas purging plug 5 by means of a weld seam 25.
  • the coupling counterpart 18 is provided with two angled slots 36 extending from the end face, into which the pins 34 engage and which are equipped with widenings 33 at one end and bulges 32 at the other end.
  • a gas connection pipe 26 is arranged on the gas purging plug 5, which protrudes a lot from the coupling counterpart 18.
  • the gas connection pipe 26 is provided, for example, with an external thread for connecting a gas supply line. It is welded into a central opening in the sheet metal base 17 of the gas purging plug.
  • the outside diameter of the cylindrical coupling counterpart 18 is somewhat smaller than the inside diameter of the cylindrical coupling part 16, so that the latter coupling part 16 can be pushed over the coupling counterpart 18. If the inwardly projecting pins 34 come into abutment with the end face of the coupling counterpart 18, the pull rod with the coupling part 16 must be turned until the pins 34 move into the slots 36 and the coupling parts are locked together by further turning.
  • the handwheel 15 is provided with a transverse bore 31 and the pull rod 3 is provided with an elongated hole 30 at some distance from the lifting cylinder 14. Both can be brought into overlap by turning the handwheel 15 and can be fixed against rotation with a split pin 37 secured to a chain 38 and thus also axially fixed against one another. The rotation and displacement of the coupling part 16 can thus be effected via a force application on the handwheel 15.
  • the handwheel 15 is turned towards the pressure cylinder 12 after removing the split pin 37 until it rests on the end face of the reciprocating piston 14 facing it. Then the pressure cylinder 12 is acted upon by the supply line 13 with a pressure medium, whereby the reciprocating piston moves out of the pressure cylinder 12 by a defined amount and thereby takes the pull rod 3 with it via the handwheel 15. By shifting the pull rod 3, the coupled sink 5 is pulled out of the perforated brick 2 as in the first embodiment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Claims (19)

1. Dispositif pour extraire, d'une brique perforée (2) ou d'un manchon de brique perforé, une brique de barbotage à enrobage de tôle, munie d'un tube central d'adduction de gaz, dispositif qui se compose d'un chevalet (1) destiné à prendre appui sur l'extérieur de la brique perforée (2) ou du manchon de brique perforé ou sur la paroi extérieure du récipient métallurgique, d'une barre de traction (3) qui est guidée de façon à se déplacer axialement dans le chevalet par rapport à celui-ci et qui peut être orientée dans l'alignement de l'axe de la brique de barbotage (5), d'un système d'accouplement (4) qui est prévu sur la barre de traction (3) pour accoupler l'extrémité de la barre de traction à la brique de barbotage (5), ainsi que d'un mécanisme moteur (10) pour déplacer la barre de traction (3) dans le sens de son éloignement de la brique perforée (2), caractérisé en ce que le système d'accouplement (4) comporte un élément d'accouplement (16) prévu à l'extrémité de la barre de traction (3) et présentant au moins une forure (20) qui s'étend perpendiculairement à la barre de traction (3), un contre-élément d'accouplement (18) prévu sur le fond de tôle (17) de la brique de barbotage (5) et présentant également au moins une forure (27) qui s'étend perpendiculairement à l'axe de la brique de barbotage, ainsi qu'une cheville d'accouplement (28) qui peut être enfoncée à travers les forures (20, 27) mutuellement alignées.
2. Dispositif selon la revendication 1, caractérisé en ce que l'élément d'accouplement (16) prévu sur la barre de traction (3) comporte un segment terminal cylindrique (19) muni de deux forures (20) mutuellement alignées.
3. Dispositif selon la revendication 2, caractérisé en ce que le contre-élément d'accouplement (18) disposé sur la brique de barbotage (5) est réalisé sous forme de cylindre (24) muni de deux forures (27) mutuellement alignées, cylindre qui est plus long que le tube d'adduction de gaz (26) et entoure celui-ci concentriquement, la distance entre les forures (27) et le fond de tôle (17) de la brique de barbotage étant plus grande que la longueur du tube d'adduction de gaz (26).
4. Dispositif selon la revendication 3, caractérisé en ce que le diamètre intérieur du segment terminal cylindrique (19) de l'élément d'accouplement (16) prévu sur la barre de traction est plus grand que le diamètre extérieur du contre-élément d'accouplement cylindrique (18) prévu sur la brique de barbotage.
5. Dispositif pour extraire, d'une brique perforée (2) ou d'un manchon de brique perforé, une brique de barbotage à enrobage de tôle, munie d'un tube central d'adduction de gaz, dispositif qui se compose d'un chevalet (1) destiné à prendre appui sur l'extérieur de la brique perforée (2) ou du manchon de brique perforé ou sur la paroi extérieure du récipient métallurgique, d'une barre de traction (3) qui est guidée de façon à se déplacer axialement dans le chevalet par rapport à celui-ci et qui peut être orientée dans l'alignement de l'axe de la brique de barbotage (5), d'un système d'accouplement (4) qui est prévu sur la barre de traction (3) pour accoupler l'extrémité de la barre de traction à la brique de barbotage (5), ainsi que d'un mécanisme moteur (10) pour déplacer la barre de traction (3) dans le sens de son éloignement de la brique perforée (2), caractérisé en ce que le système d'accouplement (4) se compose de deux éléments d'accouplement cylindriques (16, 18) emboitables l'un dans l'autre, en ce que l'un des éléments d'accouplement (16, 18) est muni d'au moins deux tenons radiaux (34) insérés dans sa paroi cylindrique et faisant saillie vers l'intérieur et/ou vers l'extérieur, et en ce que l'autre élément d'accouplement (18, 16) comporte, dans la même répartition circonférentielle, un nombre correspondant de fentes (36) partant de l'extrémité externe et ayant la largeur qui convient pour recevoir les tenons (34), chacune de ces fentes s'étendant tout d'abord en direction approximativement axiale, puis, à la suite de plus d'un diamètre des tenons, perpendiculairement à celle-ci, en direction circonférentielle, les éléments d'accouplement (16, 18) pouvant être glissés l'un dans l'autre et interverrouil- lés sans obstacle.
6. Dispositif selon la revendication 5, caractérisé en ce que le tube d'adduction de gaz (26) fait saillie au-delà de l'élément d'accouplement (18) disposé sur la brique de barbotage (5), en vue de sa libre accessibilité.
7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que les tenons (34) font principalement saillie vers l'intérieur et en ce que l'élément d'accouplement correspondant (16) a un plus grand diamètre que l'élément d'accouplement (18) qui est muni de fentes (36).
8. Dispositif selon l'une quelconque des revendications 5 à 7, caractérisé en ce que l'élément d'accouplement (16) qui est muni de tenons (34) est fixé à la barre de traction (3).
9. Dispositif selon l'une quelconque des revendications 5 à 8, caractérisé en ce que les fentes (36) présentent, à l'extrémité externe de l'élément d'accouplement (18), un élargissement (33) destiné à faciliter l'insertion des tenons (34).
10. Dispositif selon l'une quelconque des revendications 5 à 9, caractérisé en ce que les fentes (36) sont munies, à leur extrémité, d'une encoche (32) dirigée vers le contre-élément d'accouplement (16), pour l'enclenchement des tenons (34).
11. Dispositif selon l'une quelconque des revendications 5 à 10, caractérisé en ce que les tenons (34) sont faits de ronds en acier.
12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le chevalet (1) est réalisé sous forme de trépied et en ce que ses trois jambes d'appui (7) sont fixées à une douille de guidage centrale (6).
13. Dispositif selon la revendication 12, caractérisé en ce qu'il est prévu sur le chevalet (1), à la suite de la douille de guidage (6), un support de logement (9) pour le mécanisme moteur (10) destiné au déplacement de la barre de traction (3).
14. Dispositif selon la revendication 13, caractérisé en ce qu'il est prévu, en tant que mécanisme moteur, un vérin (12) à piston creux qui peut être alimenté en fluide sous pression, vérin qui est disposé dans l'alignement de la douille de guidage (6) et à travers lequel s'étend la barre de traction, et en ce que la barre de traction (3) peut être bloquée sur ou dans le piston creux (14). au moins pendant l'opération d'extraction.
15. Dispositif selon l'une quelconque des revendications 12 à 14, caractérisé en ce que la barre de traction (3) est réalisée sous forme d'une broche filetée et en ce qu'il est monté sur cette broche filetée, à l'extrémité qui sort du piston creux (14) et qui se trouve du côté opposé par rapport au système d'accouplement (4), un volant à main (15) muni d'un filetage intérieur correspondant, volant qui peut se visser en direction du côté frontal du piston creux (14) et peut être amené à reposer, par une surface portante, sur le côté frontal du piston creux (14) qui est dirigé vers lui.
16. Dispositif selon l'une quelconque des revendications 1 à 15, caractérisé en ce qu'il est prévu des moyens pour bloquer le volant à main (15) sur la broche filetée (3).
17. Dispositif selon la revendication 16, caractérisé en ce que la broche filetée (3) présente, dans son extrémité qui sort du chevalet (1), une forure ou un trou oblong (30) et en ce que le volant à main (15) présente une forure transversale (31 ces deux éléments pouvant être bloqués l'un par rapport à l'autre au moyen d'une goupille (37).
18. Brique de barbotage qui peut être extraite d'une brique perforée ou d'un manchon de brique perforé au moyen d'un dispositif selon l'une quelconque des revendications 1 à 17, caractérisée par un contre-élément d'accouplement (18) qui est prévu sur le fond de tôle (17) et qui se compose d'un cylindre (24) qui est soudé au fond de tôle (17), entoure concentriquement le tube d'adduction de gaz (26), est réalisé avec une plus grande longueur que ce dernier et présente, dans son segment qui fait saillie au-delà du tube d'adduction de gaz (26), deux forures (27) mutuellement alignées.
19. Brique de barbotage qui peut être extraite d'une brique perforée ou d'un manchon de brique perforé au moyen d'un dispositif selon l'une quelconque des revendications 1 à 17, caractérisée par un contre-élément d'accouplement (18) qui est prévu sur le fond de tôle (17) et qui se compose d'un cylindre (24) qui est soudé au fond de tôle (17), entoure concentriquement le tube d'adduction de gaz (26), est réalisé avec une plus petite longueur que ce dernier et est muni d'au moins deux tenons radiaux (34) en saillie vers l'intérieur et/ou vers l'extérieur, ou présente des fentes qui partent de son extrémité extérieure et s'étendent tout d'abord à peu près axialement. puis, à la suite de ce segment axial, perpendiculairement à celui-ci en direction circonférentielle.
EP84109793A 1983-08-20 1984-08-17 Dispositif extracteur pour une brique pour lavage au gaz Expired - Lifetime EP0137961B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84109793T ATE32751T1 (de) 1983-08-20 1984-08-17 Ausziehvorrichtung fuer einen gasspuelstein.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19833330105 DE3330105C2 (de) 1983-08-20 1983-08-20 Ausziehvorrichtung für einen Gasspülstein
DE3330105 1983-08-20
DE19843402444 DE3402444A1 (de) 1984-01-25 1984-01-25 Ausziehvorrichtung fuer einen gasspuelstein
DE3402444 1984-01-25

Publications (3)

Publication Number Publication Date
EP0137961A1 EP0137961A1 (fr) 1985-04-24
EP0137961B1 true EP0137961B1 (fr) 1988-03-02
EP0137961B2 EP0137961B2 (fr) 1994-02-02

Family

ID=25813361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109793A Expired - Lifetime EP0137961B2 (fr) 1983-08-20 1984-08-17 Dispositif extracteur pour une brique pour lavage au gaz

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Country Link
US (1) US4670958A (fr)
EP (1) EP0137961B2 (fr)
DE (1) DE3469568D1 (fr)
WO (1) WO1985001068A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE3520207A1 (de) * 1985-06-05 1986-12-11 Didier-Werke Ag, 6200 Wiesbaden Duesenanordnung zum einblasen von gasen oder feststoffen in eine eine metallschmelze enthaltende pfanne
AT383831B (de) * 1985-12-13 1987-08-25 Veitscher Magnesitwerke Ag Vorrichtung zum herausziehen eines gasspuelsteines aus einem lochstein
AT386422B (de) * 1986-11-13 1988-08-25 Voest Alpine Ag Vorrichtung zum ausbau von in die abstichoeffnung metallurgischer gefaesse eingesetzten lochsteinen
DE3833504A1 (de) * 1988-10-01 1990-04-05 Didier Werke Ag Gasspueleinrichtung
DE3833502A1 (de) * 1988-10-01 1990-04-05 Didier Werke Ag Gasspuelstein
DE3833503A1 (de) * 1988-10-01 1990-04-05 Didier Werke Ag Gasspuelstein
DE3833506A1 (de) * 1988-10-01 1990-04-05 Didier Werke Ag Vorrichtung zum aufspritzen einer ausbesserungsmasse auf einen lochstein
US5146665A (en) * 1989-10-02 1992-09-15 Royce Wheatcroft Belt splicing apparatus
US5018262A (en) * 1989-10-02 1991-05-28 Royce Wheatcroft Belt splicing apparatus
WO1992000392A1 (fr) * 1990-07-02 1992-01-09 Veitscher Magnesitwerke-Actien-Gesellschaft Appareil d'extraction pour briques de poches de coulee
AT396885B (de) * 1990-09-14 1993-12-27 Veitscher Magnesitwerke Ag Vorrichtung zum einbau und ausbau von spülsteinen für metallurgische gefässe
US5390403A (en) * 1993-12-08 1995-02-21 Ttx Company Pin puller for articulated connector pins
US8522412B1 (en) * 2006-04-03 2013-09-03 Line Walker, LLC Extraction tool lifting system
DE102010004958A1 (de) * 2010-01-12 2011-07-14 SMS Siemag Aktiengesellschaft, 40237 Spülstein Ein- und Ausbauwerkzeug
CN103353232B (zh) * 2013-07-26 2015-01-21 朱兴发 电磁矿渣熔炉左轮弹盒式多孔下拉塞石墨质水口装置

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DE7618016U1 (fr) * Burbach, Werner
DE7539031U (de) * 1976-04-29 Eiserntaler Spezial-Schweissbetrieb Gmbh, 5904 Eiserfeld-Eisern Gasspülstein, insbesondere für Schmelzwannen, -tiegel und dergleichen
US2573567A (en) * 1949-06-11 1951-10-30 William L Ruhle Pump and ram hydraulic lifting device
US2677174A (en) * 1951-02-26 1954-05-04 United States Steel Corp Device for pulling blast furnace bosh plates
NL74999C (fr) * 1952-01-21
US2866370A (en) * 1956-02-02 1958-12-30 John L Biach Bolt-tensioning and nut-seating apparatus
US3029501A (en) * 1959-09-10 1962-04-17 Clarence H Leathers Valve seat puller
DE1268793B (de) * 1964-03-14 1968-05-22 British Cast Iron Res Ass Alve Poroese Stopfenanordnung zur Begasung schmelzfluessiger Metalle in einer Giesspfanne
GB1027537A (en) * 1964-03-14 1966-04-27 British Cast Iron Res Ass Improvements in ladles for treatment of molten metals

Also Published As

Publication number Publication date
WO1985001068A1 (fr) 1985-03-14
EP0137961A1 (fr) 1985-04-24
US4670958A (en) 1987-06-09
EP0137961B2 (fr) 1994-02-02
DE3469568D1 (en) 1988-04-07

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