EP0428661B1 - Dispositif pour enlever des briques perforees ou des revetements perfores uses de recipients metallurgiques - Google Patents

Dispositif pour enlever des briques perforees ou des revetements perfores uses de recipients metallurgiques Download PDF

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Publication number
EP0428661B1
EP0428661B1 EP90908154A EP90908154A EP0428661B1 EP 0428661 B1 EP0428661 B1 EP 0428661B1 EP 90908154 A EP90908154 A EP 90908154A EP 90908154 A EP90908154 A EP 90908154A EP 0428661 B1 EP0428661 B1 EP 0428661B1
Authority
EP
European Patent Office
Prior art keywords
tool carrier
toothed shaft
support
head
thread
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
EP90908154A
Other languages
German (de)
English (en)
Other versions
EP0428661A1 (fr
Inventor
Dieter Gortan
Erwin Garger
Peter Pacnik
Josef Mocivnik
Werner Schantl
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.)
BBG Baugeraete GmbH
Original Assignee
Veitsch Radex GmbH and Co OG
Veitscher Magnesitwerke AG
Boehler Pneumatik International GmbH
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 Veitsch Radex GmbH and Co OG, Veitscher Magnesitwerke AG, Boehler Pneumatik International GmbH filed Critical Veitsch Radex GmbH and Co OG
Publication of EP0428661A1 publication Critical patent/EP0428661A1/fr
Application granted granted Critical
Publication of EP0428661B1 publication Critical patent/EP0428661B1/fr
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
    • 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
    • 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
    • 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
    • C21C5/44—Refractory linings
    • C21C5/445—Lining or repairing the taphole
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • F27D1/1694—Breaking away the lining or removing parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1527—Taphole forming equipment, e.g. boring machines, piercing tools
    • 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
    • C21C5/44—Refractory linings
    • C21C2005/448—Lining wear indicators
    • 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

Definitions

  • the invention relates to a device for removing worn perforated bricks or linings in tap openings of metallurgical vessels with a spreading device which can be inserted into the perforated brick or the tap hole and a drive for pulling off the perforated brick or the lining by means of the spreading device.
  • the known device must first be brought manually into the correct position and fixed on the outside of the hot metallurgical vessel, the manipulation being complex in that when the perforated stone has actually loosened, the device and the hot perforated stone are removed manually must become.
  • perforated bricks cannot simply be pulled out of their position without damage to the permanent chuck by simply applying pressure or tension in the axial direction.
  • AT-PS 383 831 a device for pulling out a gas purging plug from a perforated brick has become known, in which the fact that a simple axial pull is not easily removed for safe loosening of the perforated stone is suitable.
  • Perforated stones are primarily used for tap openings, for example of converters, and the wear of such perforated stones results from contact with liquid metal during pouring.
  • the area of the tap openings is therefore usually provided with a two-layer perforated brick lining, the perforated brick elements to be replaced in each case being connected to the permanent lining by means of binders, ie the second perforated brick lining remaining in the metallurgical vessel over a longer period of time.
  • Such perforated stones connected with binders to the permanent feed in particular washed-out perforated stones, generally have to be chiseled out using pneumatic hammers or drilled out using drilling devices.
  • Hydraulic pulling devices such as those found in AT-PS 386 422, can usually only be regarded as successful if clamping claws reach behind the perforated brick on the inside to ensure sufficient tensile forces, although here too the risk of damage to the permanent feed is not automatically excluded can be.
  • the invention now aims to provide a device of the type mentioned, which allows all work steps to be carried out without additional manipulations, such as setting up a work platform, which are necessary for the complete replacement of perforated stones including the installation of a new perforated stone.
  • the device according to the invention essentially consists in the spreading device being arranged on a tool carrier which can be moved in the axial direction on a support, in particular a carriage, and in that the tool carrier can be connected to at least one drive.
  • the spreading device is arranged on a tool carrier that can be moved in the axial direction on a support, in particular a carriage, simple positioning and a sufficient working path are made available, with which different working steps in the installation and removal of perforated stones by simple exchange of tools can be carried out on the tool carrier.
  • the spreading device can be used both during the removal of the perforated brick and for the new insertion of a new perforated brick, wherein tools such as those which appear favorable for the complete clearing of the hole can also be fixed on such a spreading device.
  • the above-mentioned movability makes it possible, in addition to simply removing worn perforated bricks or linings, to also reposition new perforated bricks in the correct position, the movability of the tool holder on a support, in particular a mount, offering the possibility that Arrange the entire facility on a mobile undercarriage, which significantly simplifies the manipulation when removing and installing perforated bricks.
  • the fixing and support on the hot vessel wall is omitted, since the support or the carriage can be moved into the respective position with its own drive and the reaction forces can be absorbed by an undercarriage.
  • the use of a tool carrier allows other methods, such as in particular the cooling of the perforated brick, as preparation for the application, to be carried out via such a tool carrier.
  • Such cooling of the perforated stone as preparation for the application leads to residual stresses which support the pulling out of the closing stone or perforated stone and leads to protection of the extracting tool.
  • the tool carrier also allows, depending on the type of drive used, to achieve an impact-assisted pulling out or hammering out of perforated stones after the expansion, whereby drilling tools with which the opening for inserting the new perforated stone can be calibrated can also be fixed on such a tool carrier can.
  • a preassembled perforated brick package can be inserted over the tool carrier using the carriage.
  • the device according to the invention is advantageously designed such that the tool carrier has an axial cavity in which a toothed shaft is rotatably mounted, and that the toothed shaft is guided in the tool carrier so as to be displaceable in the radial direction with a toothing of at least two, preferably three Spreading jaws combs. If necessary, a rotating tool movement can be achieved via the rotatably mounted toothed shaft for drilling out or calibrating, the expanding jaws being able to be used directly to fix the calibration tool.
  • the expanding jaws are pressed against the inner wall of the perforated brick when the expanding jaws are extended and the tool holder can be hammered to facilitate removal of the perforated brick.
  • the design is advantageously made such that the tool carrier is rotatably mounted in the support or on the mount and can be locked in a rotationally fixed manner relative to the support or mount, whereby the lockability serves to apply the necessary spreading forces to enable the stone to be pulled out.
  • Various drives are advantageously connected to the tool carrier and the toothed shaft, it being possible to connect a rotary drive to the toothed shaft in a simple manner and an impact drive, in particular a counterblow hammer, to the tool carrier.
  • the percussion drive acts on the hollow tool carrier and thus on a correspondingly rigid tubular component, whereas the toothed shaft is used to transmit torques both for pressing the jaws and for rotatingly drilling the opening.
  • the design is advantageously made such that the toothed shaft has at least one axial channel which is connected to nozzles or outflow openings near the free end of the tool carrier and a connection for fluid .
  • a corresponding sealing closure can be achieved in a simple manner in that the toothed shaft itself has this axial channel for the supply of fluid, the feeding of fluid into the axial channel can be achieved in a particularly simple manner in that the fluid connection at the support or the mount has an annular channel, in which radial bores open to the axial channel of the toothed shaft.
  • the design is advantageously made such that the toothed shaft is connected to a rotary drive shaft in a rotationally fixed manner and displaceably in the axial direction.
  • the design is such that the head part of the tool carrier carrying the expanding jaws is detachably connected via a thread to the part of the tool carrier which can be connected to the impact drive, the head of the tool carrier can be removed in a simple manner from Detach the tool holder, and because of the connection of the toothed shaft with a rotary drive shaft, the toothed shaft can also be removed together with the head, so that other tools can be connected to the rotary drive shaft.
  • the design is advantageously made such that the thread for connecting the tool holder to the head part of the tool holder has a core diameter which is larger than the outer diameter of the toothed shaft connected to the rotary drive shaft, whereby all components of the tool carrier and the central drive shaft which are connected to one another in a rotationally locked manner can be removed to the front.
  • a drilling head can also be connected directly to the tool carrier with the device according to the invention, the design advantageously being such that a sleeve is screwed onto the thread, which has a round thread or a trapezoidal thread on its outside, on which a drill head can be screwed against a stop of the tool carrier.
  • a sleeve can be screwed onto the tool holder in a simple manner, the external thread of such a sleeve allowing the simple screwing on of a drill head using the rotary drive of the tool holder.
  • the drill head is screwed onto the round or trapezoidal thread up to a stop of the tool holder, whereby the same direction of rotation must naturally be maintained for the subsequent drilling in order to prevent the drill head from loosening from the thread. Otherwise, a separate rotation lock relative to the tool carrier would have to be provided in the screwed-on position of the drill head.
  • the drill head In order to enable screwing onto the external thread of the sleeve, the drill head must be held in a rotationally secure manner during screwing on, the design being advantageously made such that the drill head which can be screwed onto the sleeve has a stop for a separate anti-rotation lock, which has an unlockable stop cooperates on support. For the subsequent drilling operation, the separate anti-rotation lock must of course be released again.
  • FIG. 1 shows a side view of a device according to the invention fixed on a movable undercarriage; 2 shows, on an enlarged scale, the device according to the invention according to FIG. 1 in a section through the tool carrier; 3 in a view similar to FIG. 2 on a further enlarged scale, the head and the end of the tool carrier facing away from the head; Figures 4 and 5 sections along the line IV-IV of Figure 3 by an expanding jaw, Figure 4 represents the retracted position and Figure 5 shows the extended position of the expanding jaw; 6 shows a schematic illustration of the definition of a calibration tool on the device according to the invention; 7 shows, in a representation analogous to FIG.
  • FIG. 8 is an enlarged view of a partial section through a modified embodiment for fixing a drilling tool on the invention Facility; and
  • FIG. 9 shows a partial section along the line IX-IX of FIG. 8.
  • FIG. 1 denotes an undercarriage which can be moved on a crawler chassis 2, a support or a mount 8 being fixed on an arm 5 which can be raised and lowered via cylinder-piston units 3 and 4.
  • a tool carrier 9 which can be moved in the direction of the double arrow 7 by a cylinder-piston unit 6 and which is shown even more clearly in the following figures, and a striking tool designed as a counterblow hammer 10 are attached to the tool carrier 9 the double arrow 11 indicated striking movement.
  • the tool carrier for the removal, clearing and installation of perforated stones or tap openings of metallurgical vessels can be positioned according to the requirements relative to a tap hole of a converter, not shown, and the removal of a worn perforated brick or a worn lining as well as calibration and subsequent setting of a new lining without manual manipulation of an extractor attached directly to the metallurgical vessel. It can thus be operated with a single device, as shown in FIG. 1, and with a minimum of operating effort, a large number of tap openings even on different converters, and the arrangement of corresponding holding devices and pull-out devices in the area of each tap hole can be dispensed with will.
  • Both the toothed shaft 13 and the rotary drive shaft 14 have an axially extending channel 15 which opens into nozzles or outflow openings 17 in the region of the head 16 of the tool holder and which has a connection formed by radial channels 18 at the end opposite the tool holder head 16 has an annular space 19 for supplying a fluid.
  • In the area of the head 16 of the tool carrier there are further spreading jaws 20 which can be displaced in the radial direction relative to the toothed shaft and thus to the entire tool carrier.
  • the counterblow hammer 10 exerts its impact energy on two half shells 21 in the region of a closing part 22, the impact stress thus exerted by the counterblow hammer 10 in the sense of the double arrow 11 being transmitted to this outer tube via the transition piece screwed to the outer tube 23 of the tool carrier.
  • the tool carrier 9 is centered with its outer tube in a guide 24.
  • the torque is transmitted to the rotary drive shaft 14 or the toothed shaft 13 by driving by means of a rotary drive, not shown, of a stub 25 in the direction of the arrow 26, the rotary movement via a connecting piece 27 to the rotary drive shaft 14 and via a corresponding toothing 28 in another Bear on the toothed shaft 13, which cooperates with the expanding jaws 20, is transmitted.
  • the formation of the toothing 28 when the toothed shaft is connected to the rotary drive shaft and the fixing of the head 16 of the tool carrier 9 on the outer tube 23 of the Tool carrier is carried out such that the thread 29 for fixing the head 16 on the tube 23 has a larger diameter than the outer diameter of the toothed shaft 13 in the region of the toothing 28.
  • a securing device 30 is provided which engages in a perforated disc 31, for example provided with perforations at regular intervals and connected to the tube 23.
  • the arrangement and the movement of the expanding jaws 20 are shown in more detail in FIGS.
  • the expanding jaws 20 mesh via a toothing 31 'with an external toothing 32 of the toothed shaft 13, so that when a rotational movement is carried out the expanding jaws 20 from the position shown in FIG. 4 in the radial direction, as indicated by the arrow 33, into the Extend the position shown in Fig. 5.
  • the jaws are guided in corresponding radial recesses in the head 16 of the tool carrier and each have a stop 34 which, on the one hand, prevents the expanding jaws 20 from falling out and which, when a rotary movement is continued in FIG. 5 shown position or when the jaws are in contact with a perforated brick or an attached tool, the entire tool carrier is rotated.
  • the tool carrier 9 To remove a perforated stone or a worn lining from a converter opening, the tool carrier 9 is inserted into the opening to be cleared, cooling of the perforated stone or the hole to be removed being carried out by the application of fluid via the nozzles or outflow openings 17 in the foremost section of the head of the tool carrier the lining as preparation for the application and at the same time as protection for the tool carrier is achieved. Support the residual stresses generated by the cooling subsequently removing the lining to be removed.
  • the spreader jaws 20 are extended and expanded in the lining by rotating the toothed shaft 13, after which the jaws are knocked out by pulling them out supported by the counterblow hammer 10 .
  • the entire tool carrier, which is now spread out in the lining in its head region, together with the counterblow hammer 10 introducing impact energy, are pulled out of the opening to be cleared via the cylinder-piston unit 6 shown in FIG.
  • the tool carrier 9 is now used to set a new perforated brick package 36, with the procedure being such that the new perforated brick package 36, for example fixed on a steel tube 37, is held by means of the expanding jaws 20 and by a corresponding method of entire tool holder is positioned in the tap hole, the definition of the new perforated brick package is indicated schematically in FIG. 7.
  • the subdivision of the drive shaft for transmitting a torque or for the rotary drive of the entire tool carrier 9 into a plurality of partial shafts which are connected to one another in a rotationally fixed manner and by the separate fixing of the head 16 of the tool carrier with the expanding jaws 20 on the tube 23 can greatly simplify the assembly of the entire tool carrier and it is also possible to use different designs of the head 16 or the expanding jaws 20 to adapt to different hole openings.
  • the procedure is such that after inserting the half-shells 21 to transmit the impact energy and arranging the transition piece 27 on the shaft end 25 and the one end of the rotary drive shaft 14, the tube 23 is screwed to the end part 22.
  • the expanding jaws 20 When mounting the head 16 of the tool carrier, the expanding jaws 20 are first inserted into the corresponding recesses in the tool head 16, whereupon the toothed shaft 13 is inserted into the central recess of the head 16, whereby the expanding jaws 20 are secured against falling out through the respective end stops 34 . Thereafter, the head 16 with the expanding jaws 20 is inserted into the tube 23 and the toothing 28 results in a rotationally fixed connection of the toothed shaft 13 with the rotary drive shaft 14. The head 16 is fixed on the tube 23 by screwing by means of the thread 29.
  • the modular structure means that the head 16 of the tool holder 9 can be easily replaced by different diameters of openings to be cleared. Furthermore, the individual parts of the tool holder, which are connected by screw and plug connections, can be quickly replaced. Due to the simple construction of the tool carrier 9 in its middle part The tube 23 and the shaft 14 guided therein in the cavity 12 are easily adapted to different hole block lengths, the outer diameter of the tube 23 being matched to the smallest hole block diameter or diameter of a lining that is possible. In addition to using different designs of heads 16, different diameters of the perforated bricks or linings can also be taken into account by simply changing the jaws 20.
  • Tube 23 extends the thread 29 for fixing the head 16, which in this embodiment extends over the free end of the tube 23 facing away from the counterblow hammer 10, and it is screwed to the tube 23 via the thread 29, a sleeve 38, which is on the outside thereof Round thread 39 carries.
  • the head with the expanding jaws 20, not shown is located near the guide 24, through which the outer tube 23 passes, as is shown in particular in FIGS. 2 and 3.
  • the outer tube 23 is screwed via the sleeve 38 into a drill head 40, which has on its inside a round thread 41 which interacts with the round thread 39 of the sleeve 38 having.
  • the cutting edges of the drill head are indicated schematically at 42.
  • the drill head 40 is held in the rest position shown in FIG. 8 by a holding device 44 directly adjoining the support 43 which carries the guide 24 and is connected to the mount.
  • a slide 46 which can be actuated by a cylinder 45, holds the drilling head 40 in contact with the support 43 via a U-shaped end or claws 47.
  • the U-shaped, fork-shaped end region 47 of the slide 46 overlaps one essentially as a square trained area 48 of the drill head 40 and thus secures it against axial displacement and rotation.
  • the correct position of the drill bit 40 relative to the support 43 or the holding device 44 is further ensured by a tubular extension 49 rigidly connected to the holding device 44.
  • the entire tool carrier 9 with the drill bit 40 attached to it is again moved into a position in the axial direction in which the drill bit 40 assumes the position shown in FIG. 8 near the support 43 and the holding device 44.
  • the pipe 23 is unscrewed together with the sleeve 38 from the drill head 40 by a rotational movement in the opposite direction, as a result of which the tool carrier 9 with the head 16 is again perfect is separated from the drill head 40.
  • the mutually interacting stop surfaces 50 on the end of the head 16 facing the drill bit
  • 51 on Front end of the drill head 40.
  • correspondingly resilient spindle threads such as a trapezoidal thread may be provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Handcart (AREA)

Claims (11)

  1. Dispositif pour enlever les briques perforées usées ou les revêtements usés des ouvertures de coulée des récipients métallurgiques, comprenant un dispositif expansible (20) pouvant être inséré dans la brique perforée ou dans le trou de coulée, et un entraînement destiné à arracher la brique percée ou le revêtement au moyen du dispositif expansible, caractérisé en ce que le dispositif expansible (20) est agencé sur un porte-outil (9) mobile dans la direction axiale sur un support, en particulier sur un affût (8) et en ce que le porte-outil (9) peut être relié à au moins un entraînement.
  2. Dispositif selon la revendication 1, caractérisé en ce que le porte-outil (9) présente une cavité axiale (12) dans laquelle est monté rotatif un arbre denté (13, 14) et en ce que l'arbre denté (13) engrène avec une denture d'au moins deux, de préférence trois, mâchoires expansibles (20) guidées mobiles dans la direction radiale dans le porte-outil (9).
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que le porte-outil (9) est monté rotatif dans le support ou sur l'affût (8) et peut être verrouillé solidairement en rotation par rapport au support ou à l'affût.
  4. Dispositif selon l'une des revendications 1, 2 ou 3, caractérisé en ce qu'un entraînement en rotation peut être accouplé à l'arbre denté (13, 14) et un entraînement de percussion, notamment un marteau à contre-coups (10), peut être accouplé au porte-outil.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'arbre denté (13, 14) présente au moins un canal axial (15) qui est relié à des buses ou ouvertures de sortie (17) proches de l'extrémité libre du porte-outil (9) et à un raccordement de fluide (18, 19).
  6. Dispositif selon la revendication 5, caractérisé en ce que le raccord de fluide prévu sur le support ou sur l'affût (8) présente un canal annulaire (19) dans lequel débouchent des perçages radiaux (18) aboutissant au canal axial (15) de l'arbre denté (13, 14).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que l'arbre denté (13) est relié solidairement en rotation mais mobile en translation dans la direction axiale à un arbre (14) d'entraînement en rotation par l'intermédiaire d'une denture (28).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que la partie de tête (16) du porte-outil (9) qui porte les mâchoires expansibles (20) est reliée de façon démontable, par l'intermédiaire d'un filetage (29), à la partie du porte-outil (9) qui peut être reliée à l'entraînement de percussion (10).
  9. Dispositif selon la revendication 8, caractérisé en ce que le filetage (29) servant à relier le porte-outil (9) à la partie de tête (16) du porte-outil (9) présente un diamètre de noyau de vis qui est plus grand que le diamètre extérieur de l'arbre denté (13) relié à l'arbre (14) d'entraînement en rotation.
  10. Dispositif selon l'une des revendications 8 ou 9, caractérisé en ce que sur le filetage (29) est vissé un manchon (38) qui présente sur sa face extérieure un filetage rond (39) ou un filetage trapézoidal, sur lequel une tête porte-lames (40) peut être vissée en s'appuyant contre une butée (51) du porte-outil (9, 16).
  11. Dispositif selon la revendication 10, caractérisé en ce que la tête porte-lames (40) pouvant être vissée sur le manchon (38) présente une butée (48) pour un frein de rotation distinct qui coopère avec une butée déverrouillable (46, 47) prévue sur le support (43, 44).
EP90908154A 1989-06-09 1990-06-08 Dispositif pour enlever des briques perforees ou des revetements perfores uses de recipients metallurgiques Expired - Lifetime EP0428661B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1427/89 1989-06-09
AT142789 1989-06-09

Publications (2)

Publication Number Publication Date
EP0428661A1 EP0428661A1 (fr) 1991-05-29
EP0428661B1 true EP0428661B1 (fr) 1993-10-27

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EP90908154A Expired - Lifetime EP0428661B1 (fr) 1989-06-09 1990-06-08 Dispositif pour enlever des briques perforees ou des revetements perfores uses de recipients metallurgiques

Country Status (13)

Country Link
US (1) US5133534A (fr)
EP (1) EP0428661B1 (fr)
JP (1) JPH04500266A (fr)
KR (1) KR920700296A (fr)
AT (1) ATE96465T1 (fr)
AU (1) AU633929B2 (fr)
BR (1) BR9006796A (fr)
CA (1) CA2033185A1 (fr)
DE (1) DE59003235D1 (fr)
ES (1) ES2047934T3 (fr)
HU (1) HU213077B (fr)
WO (1) WO1990015161A1 (fr)
ZA (1) ZA904465B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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FR2685653B1 (fr) * 1991-12-31 1994-04-01 Sollac Dispositif de refection du revetement interieur d'un trou de coulee notamment d'un convertisseur d'acierie.
AT408964B (de) * 1997-12-02 2002-04-25 Boehler Pneumatik Internat Gmb Verfahren und vorrichtung zur erneuerung der auskleidung einer abstichöffnung von metallurgischen gefässen
US5925312A (en) * 1998-06-17 1999-07-20 China Steel Corporation Push-pull apparatus adapted for assembling and disassembling a tubular body that is to be fitted into a ring retainer on a wall member
CN1083745C (zh) * 1998-06-19 2002-05-01 中国钢铁股份有限公司 嵌合件的拆装机
US6663825B2 (en) 1999-07-19 2003-12-16 Louis A. Grant, Inc. Method and apparatus for installing or replacing a furnace tap hole insert
US6221313B1 (en) * 1999-11-15 2001-04-24 North American Refractories Co. Taphole knockout device
KR20010095093A (ko) * 2000-03-31 2001-11-03 그랜트 루이스에이 주니어 염기성 산소로의 탭홀 라이너 교체장치 및 교체방법
KR100480359B1 (ko) * 2000-05-16 2005-04-06 주식회사 포스코 노즐브릭 보수 장치
KR100729111B1 (ko) * 2001-05-04 2007-06-14 주식회사 포스코 전로 출강구의 슬리브 보조 파쇄장치
CH708284B1 (de) 2013-07-11 2023-11-15 Refractory Intellectual Property Gmbh & Co Kg Verfahren und Wechselvorrichtung zum automatischen Auswechseln einer Ausgusshülse eines Schiebeverschlusses an einem metallurgischen Gefäss.
CN103801685B (zh) * 2014-02-26 2016-01-20 北京首钢国际工程技术有限公司 一种钢包底吹透气砖拆除装置及其工作方法
CN106424695B (zh) * 2016-08-26 2018-08-14 洛阳利尔耐火材料有限公司 一种分体式透气砖定位吊装工具

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FR2409809A1 (fr) * 1977-11-29 1979-06-22 Daussan Henri Jean Dispositif de manoeuvre pour tube ou busette de coulee
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LU83478A1 (fr) * 1981-07-08 1983-04-06 Wurth Paul Sa Dispositif d'accouplement d'une tige de percage du trou de coulee d'un four a cuve a l'outil de travail d'une machine de percage
GB8302170D0 (en) * 1983-01-26 1983-03-02 Mds Furnace Services Ltd Furnace delining apparatus
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Publication number Priority date Publication date Assignee Title
EP0767022A1 (fr) * 1995-10-02 1997-04-09 Böhler Druckluft und Hydraulik Baugeräte GmbH Dispositif pour changer des briques perforées

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HU905215D0 (en) 1992-02-28
WO1990015161A1 (fr) 1990-12-13
BR9006796A (pt) 1991-08-06
ZA904465B (en) 1991-04-24
DE59003235D1 (de) 1993-12-02
JPH04500266A (ja) 1992-01-16
HUT60790A (en) 1992-10-28
HU213077B (en) 1997-02-28
AU633929B2 (en) 1993-02-11
ES2047934T3 (es) 1994-03-01
KR920700296A (ko) 1992-02-19
ATE96465T1 (de) 1993-11-15
EP0428661A1 (fr) 1991-05-29
US5133534A (en) 1992-07-28
CA2033185A1 (fr) 1990-12-10
AU5745090A (en) 1991-01-07

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