EP0364723A1 - Gas bubbling device - Google Patents

Gas bubbling device Download PDF

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Publication number
EP0364723A1
EP0364723A1 EP89116617A EP89116617A EP0364723A1 EP 0364723 A1 EP0364723 A1 EP 0364723A1 EP 89116617 A EP89116617 A EP 89116617A EP 89116617 A EP89116617 A EP 89116617A EP 0364723 A1 EP0364723 A1 EP 0364723A1
Authority
EP
European Patent Office
Prior art keywords
gas purging
gas
plug
cover part
purging plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89116617A
Other languages
German (de)
French (fr)
Other versions
EP0364723B1 (en
Inventor
Hans Rothfuss
Raimund Brückner
Peter Keutgen
Josef Seeger
Manfred Winkelmann
Herbert Metzger
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Priority to AT89116617T priority Critical patent/ATE85654T1/en
Publication of EP0364723A1 publication Critical patent/EP0364723A1/en
Application granted granted Critical
Publication of EP0364723B1 publication Critical patent/EP0364723B1/en
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
    • C21C5/30—Regulating or controlling the blowing
    • 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
    • C21C5/48—Bottoms or tuyéres of converters
    • 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
    • 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 or breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • 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 or breaking away linings
    • F27D1/1626—Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall
    • 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 or breaking away linings
    • F27D2001/1605—Repairing linings
    • F27D2001/1615—Repairing linings through a hole in the casing, e.g. injecting refractory from outside the vessel
    • 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
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/161—Introducing a fluid jet or current into the charge through a porous element

Definitions

  • the invention relates to a gas purging device on a vessel for a metallurgical melt, with a gas purging plug which is inserted into a perforated brick of the vessel, a fastening device being arranged on the outside of the vessel, against which a holding device can be clamped, which in its operating position is against the gas purging plug presses.
  • the fastening-holding device is formed by a bayonet catch. This holds the gas purging plug in the perforated brick via washers. The holding device has no influence on the centering of the gas purging plug in the perforated brick.
  • a pull-out device separate from the fastening / holding device is proposed for pulling the gas flushing plug out of the perforated brick. This is attached to the gas connection piece of the gas purging plug after the bayonet catch is opened.
  • EP 0 137 961 B1 describes a pull-out device for a gas purging plug.
  • the object of the invention is to propose a gas purging device of the type mentioned at the outset, with which the gas purging plug can be inserted centered in the perforated brick, held centered therein and pulled out of the perforated brick.
  • the above object is achieved in a gas purging device of the type mentioned at the outset in that the gas purging plug is held in the center of the holding device and that the holding device can be detached from the fastening device by means of pull-out means, the holding device taking the gas purging plug from the operating position into its maintenance position outside the perforated block .
  • the locking, centering and pulling function is integrated in this device. This simplifies the installation and removal of the gas flushing plug. This simplification makes the maintenance work easier and faster.
  • the holding device has a cover part which lies sealingly on the gas purging plug and on which a gas connecting piece for the gas supply into the gas purging plug is arranged.
  • a gas connecting piece for the gas supply into the gas purging plug is arranged.
  • the gas connecting piece is not firmly connected to the gas purging plug, but rather to the holding device.
  • the cover part seals a gas distribution space provided in the gas purging plug. This simplifies the metal sheathing of the gas purging plug or can be omitted entirely.
  • the gas purging plug In the maintenance position, the gas purging plug only needs to be lifted off the cover part and replaced with a new gas purging plug.
  • the gas connection piece and the cover of the gas distribution space of the gas purging plug, namely the cover part, can be reused as part of the holding device and need not be replaced together with the gas purging plug.
  • a vessel for a metallurgical melt has a bottom 1.
  • the vessel is shown in its tilted position, in which the bottom 1 is approximately vertical.
  • a perforated brick 2 is inserted into the bottom 1.
  • a conical gas purging plug 3 which has a gas-impermeable, fireproof outer part 4 and a gas-permeable, fireproof inner part 5.
  • a cylindrical gas distribution space 6 is formed in the outer part 4 and is open towards the inner part 5 and outwards.
  • the gas purging plug 3 is held centered on a holding device 7.
  • This has a cover part 8, in which a sealing ring 9 is inserted.
  • the sealing ring 9 rests on the end face 10 of the gas purging plug 3.
  • a projection 11 of the cover part 8 protrudes into the gas distribution space 6.
  • a sealing sleeve can also be used, which is inserted into the gas distribution space 6 and is sealingly squeezed by the insertion of the projection 11.
  • a gas connection stub 12 is arranged on the cover part 8 and opens into the gas distribution space 6 through the projection 11.
  • the holding device 7 is releasably attached to a fastening device 13 which is arranged on the outside of the base 1.
  • the fastening device 13 has four pins 14 to 17 (cf. FIG. 2).
  • stops 18 are formed on it, of which only one can be seen in FIG. 1.
  • the pins 14 to 17 are provided with transverse slots 19 of the same size for wedges 20.
  • the wedges 20 are driven into the transverse slots 19 of the two pins 16, 17.
  • the wedges 20 are pulled out of the transverse slots 19 of the pins 16, 17 and driven into the transverse slots 19 of the pins 14, 15.
  • the holding device 7 of the exemplary embodiment according to FIGS. 1 and 2 has a crossmember 21 to which the cover part 8 is fastened.
  • the traverse 21 is provided with two handles 22.
  • bores 23 are formed with which it is pushed onto the pins 16, 17.
  • the holding device 7 also has a centering ring 24 which surrounds the gas purging plug 3 and is provided with a contact surface 25, the taper of which corresponds to the taper of the gas purging plug 3.
  • the gas purging plug 3 shown has no sheet metal jacket. However, in order to improve the absorption of the forces exerted by the contact surface 25 on the gas purging plug 3, it may be expedient to provide the gas purging plug 3 with a sheet metal jacket at least in the region of the contact surface 25.
  • centering ring 24 On the outside of the centering ring 24, supports 26 assigned to the stops 18 are formed. On the centering ring 24 tabs 28 are welded with holes, with which the centering ring 24 is placed on the pin 14, 15. Handles 29 are also attached to the centering ring 24.
  • the mode of operation of the device according to FIGS. 1 and 2 is approximately as follows:
  • the wedges 20 are pulled out of the transverse slots 19 of the pins 16, 17.
  • the cross member 21 can now be pulled off from the pins 16, 17 together with the cover part 8.
  • the wedges 20 are driven into the transverse slots 19 of the pins 14, 15.
  • the centering ring 24 is moved in the direction of arrow A. He pulls the gas purging plug 3 out of the perforated block 2 by means of its contact surface 25. The worn gas purging plug 3 can then be pulled out of the centering ring 24. A new gas purging plug 3 is then inserted.
  • the contact surface 25 of the centering ring 24 keeps it centered.
  • the centering ring 24 is pushed with its tabs 28 back onto the pins 14, 15.
  • the gas purging plug 3 is pushed into the center of the perforated brick 2. A layer of mortar applied to the outside is not stripped off. Then or even before, the cover part 8 is placed on the end face 10 of the gas purging plug 3 and the cross member 21 on the pins 16, 17. Finally, the wedges 20 are driven back into the transverse slots 19 of the pins 16, 17.
  • the cross member 21 and the centering ring 24 can be releasably connected so that they can be handled together.
  • the fastening device 13 has two pins 30, 31, each pin 30, 31 being provided with two transverse slots 32, 33 for wedges 34.
  • the fastening device 13 is provided with an axis 35 on a support 36 and with a stop 37.
  • the holding device 7 of Figures 3 and 4 has pivoting levers 38 which are pivotally mounted at one end on the axis 35. At the other end of the pivot lever 38, U-profiles 39 are fastened, which engage around the pin 30 or 31 (see FIG. 4). A handle 40 and a counterpart 41 for the stop 37 are fastened to the swivel levers 38.
  • a tubular guide body 42 on which the cover part 8 is fastened is pivotably mounted on the pivot lever 38. Its projection 11 centers the gas purging plug 3 on the cover part 8.
  • the gas purging plug 3 is detachably fastened to the cover part 8 by means of screws 43.
  • a lever 44 acts on the guide body 42 and is pivotably mounted on a further carrier 45 of the fastening device 13.
  • the levers 44, 38 are arranged so that when the gas purging plug 3 is pivoted, it is first pulled out of the perforated block 2 essentially perpendicularly to the plane of the perforated brick opening and is then pivoted about 90 ° into its maintenance position on an arcuate path. This maintenance position of the gas purging plug 3 is shown in broken lines in FIG.
  • the wedges 34 are pulled out of the transverse slots 32 and driven into the transverse slots 33. As a result, the gas purging plug 3 is released in the perforated brick 2.
  • the holding device 7 is then pulled by means of the handle 40.
  • the gas purging plug 3 initially moves on an essentially linear path perpendicular to the level of the perforated brick opening, so that it does not strike the perforated brick 2.
  • the gas purging plug 3 then pivots on an arcuate path into the maintenance position in which the counterpart 41 of the pivoting lever 38 strikes the stop 37.
  • the gas purging plug 3 is now freely accessible and can be replaced on the cover part 8.
  • the cover part 8 with the new gas purging plug 3 is then pivoted back into the operating position.
  • the gas purging plug 3 enters the perforated brick 2 centered.
  • the wedges 34 are driven into the transverse slots 32 so that the gas purging plug 3 is kept centered in the perforated brick 2.
  • the pivoting device is identical to that of the exemplary embodiment according to FIG. 3.
  • the gas purging plug 3 is not held on the cover part 8 by means of screws, but with a centering ring 46.
  • the centering ring 46 cannot itself be fixed on the fastening device 13.
  • the centering ring 46 is provided with an edge 47 which engages around the cover part 8.
  • the edge 47 and the cover part 8 are designed in the manner of a bayonet lock, so that by rotating the centering ring 46 about the longitudinal axis of the gas purging plug 3, the centering ring 46 is braced with the cover part 8, the contact surface 25 of the centering ring 46 the gas purging plug 3 on its conical Keeps the circumference centered and fixes it on the cover part 8.
  • a commercially available gas purging plug 3 is used. This has a sheet metal jacket 48 and a gas purge tube 49 fixed to it. The gas purging tube 49 protrudes through the guide body 42. Sealing means between the cover part 8 and the gas purging stone 3 are not necessary here.
  • the embodiment according to FIG. 5 can, however, also be used for a gas purging plug, as is shown in the exemplary embodiments according to FIGS. 1 and 3.
  • the gas connecting piece 12 is then formed on the guide body 42 on a flap 57 (see FIG. 6) which is open when a gas purging plug 3 according to FIG. 5 is used and is closed when a gas purging plug 3 according to FIGS. 1, 3 is used .
  • this partial sheet metal jacket can be designed such that it takes over the function of the centering ring 24 or the centering ring 46.
  • the pivoting lever 38 engaging on the guide body 42 and the lever 44 are not shown.
  • the guide body 42 is also mounted, as shown in Figures 3 and 5.
  • a base 50 of a template casing 51 is detachably fastened to the cover part 8 by means of screw bolts 52.
  • the cover part 8 engages with its protrusion 11 in the center of the bottom 50.
  • the outer contour of the template shell 51 corresponds to that of the gas purging plug 3 to be inserted in the perforated brick 2.
  • a mass supply tube 55 is slidably and rotatably mounted on a guide sleeve 54 of the template shell 51. This has a spray head 56 at one end.
  • a flap 57 is pivotally arranged, to which the gas connection piece 12 is fastened. The flap 57 is open when the mass supply pipe 55 is inserted and closed when the gas purging plug 3 is attached to the cover part 8.
  • the mass supply pipe 55 protrudes beyond the flap 57 and is connected there to a mass supply device.
  • a cover plate 58 with a collar 59 is fastened to the mass supply pipe 55 in order to cover the stencil casing 51 with respect to the interior of the vessel.
  • the mode of operation of the device according to FIG. 6 is approximately as follows:
  • the template casing 51 is first attached to the mass supply pipe 55 and by means of the holding device 7 in the above described manner used in the perforated brick 2. Repair material is then supplied to the mass supply pipe 55, which is applied in the vicinity of the stencil casing 51 by means of the spray head 56 to the worn area of the perforated brick 2. Compressed air is supplied to the spray head 56 if necessary for better distribution of the repair compound.
  • the distribution of the repair mass can be controlled by moving and rotating the mass supply pipe 55.
  • the template casing 51 with the mass supply pipe 55 and the spray head 56 is pulled out of the perforated brick 2 by means of the holding device 7, in particular the cover part 8. This is so improved that the gas purging plug 3 subsequently connected to the cover part 8 fits into the perforated brick 2 and is held centered therein.
  • a template jacket corresponding to the template jacket 51 and thus the outer contour of the gas purging brick 3 can be used not only for the targeted repair of a worn perforated brick 2, but also during the creation of the
  • the lining of the vessel can be used to position the perforated brick in the correct position.
  • a template jacket 51 - without a mass feed tube 55 - is fastened to the cover part 8 of the holding device 7 and pivoted into the vessel before the lining of the vessel.
  • the perforated brick 2 is then placed on this template casing 51. This ensures that the perforated brick 2 is correctly aligned from the outset relative to the fastening device 13 arranged on the bottom of the vessel.
  • This stencil cover will be designed as a lost stencil cover that is not necessarily reusable.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Vacuum Packaging (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Gas Separation By Absorption (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

In a gas bubbling device on a vessel for a metallurgical melt, a gas bubble brick (3) is inserted into a perforated brick (2) of the vessel. On the outside of the vessel, a fixing device (13) is arranged, to which a holding device (7) for the gas bubble brick (3) can be clamped. The installation and removal of the gas bubble brick (3) is to be simplified. For this purpose, the gas bubble brick (3) is held on the holding device (7). The holding device (7) can be released from the fixing device (13) by retracting means, taking along the gas bubble brick (3) from the operating position in the perforated brick (2) into a maintenance position outside the perforated brick (2). <IMAGE>

Description

Die Erfindung betrifft eine Gasspüleinrichtung an einem Gefäß für eine metallurgische Schmelze, mit einem Gasspülstein, der in einen Lochstein des Gefäßes eingesetzt ist, wobei außen an dem Gefäß eine Befestigungsvorrichtung angeordnet ist, gegen die eine Haltevorrichtung verspannbar ist, die in ihrer Betriebsstellung gegen den Gasspülstein drückt.The invention relates to a gas purging device on a vessel for a metallurgical melt, with a gas purging plug which is inserted into a perforated brick of the vessel, a fastening device being arranged on the outside of the vessel, against which a holding device can be clamped, which in its operating position is against the gas purging plug presses.

Eine derartige Einrichtung ist in dem Prospekt "DIDIER, Gasspülsysteme, Betriebsanleitung, 3.84, Seiten 5 bis 7" beschrieben. Die Befestigungs-Haltevorrichtung ist von einem Bajonettverschluß gebildet. Dieser hält über Beilagscheiben den Gasspülstein im Lochstein. Auf die Zentrierung des Gasspülsteins im Lochstein hat die Haltevorrichtung keinen Einfluß. Zum Ausziehen des Gasspülsteins aus dem Lochstein ist eine von der Befestigungs-Haltevorrichtung separate Ausziehvorrichtung vorgeschlagen. Diese wird an den Gasanschlußstutzen des Gasspülsteins angesetzt, nachdem der Bajonettverschluß geöffnet ist. In der EP 0 137 961 B1 ist eine Ausziehvorrichtung für einen Gasspülstein beschrieben.Such a device is described in the brochure "DIDIER, gas purging systems, operating instructions, 3.84, pages 5 to 7". The fastening-holding device is formed by a bayonet catch. This holds the gas purging plug in the perforated brick via washers. The holding device has no influence on the centering of the gas purging plug in the perforated brick. A pull-out device separate from the fastening / holding device is proposed for pulling the gas flushing plug out of the perforated brick. This is attached to the gas connection piece of the gas purging plug after the bayonet catch is opened. EP 0 137 961 B1 describes a pull-out device for a gas purging plug.

Aufgabe der Erfindung ist es, eine Gasspüleinrichtung der eingangs genannten Art vorzuschlagen, mit der der Gasspülstein zentriert in den Lochstein einsetzbar, zentriert in diesem gehalten und aus dem Lochstein ausziehbar ist.The object of the invention is to propose a gas purging device of the type mentioned at the outset, with which the gas purging plug can be inserted centered in the perforated brick, held centered therein and pulled out of the perforated brick.

Erfindungsgemäß ist obige Aufgabe bei einer Gasspüleinrichtung der eingangs genannten Art dadurch gelöst, daß der Gasspülstein zentriert an der Haltevorrichtung gehalten ist und daß die Haltevorrichtung durch Auszugsmittel von der Befestigungsvorrichtung lösbar ist, wobei die Haltevorrichtung den Gasspülstein von der Betriebsstellung in ihre Wartungsstellung außerhalb des Lochsteins mitnimmt.According to the invention, the above object is achieved in a gas purging device of the type mentioned at the outset in that the gas purging plug is held in the center of the holding device and that the holding device can be detached from the fastening device by means of pull-out means, the holding device taking the gas purging plug from the operating position into its maintenance position outside the perforated block .

In dieser Einrichtung ist die Verschluß-, Zentrier- und Abziehfunktion integriert. Der Einbau und der Ausbau des Gasspülsteins ist dadurch vereinfacht. Diese Vereinfachung bringt eine Erleichterung und Beschleunigung der Wartungsarbeiten mit sich.The locking, centering and pulling function is integrated in this device. This simplifies the installation and removal of the gas flushing plug. This simplification makes the maintenance work easier and faster.

In Weiterbildung der Erfindung weist die Haltevorrichtung ein Deckelteil auf, das an dem Gasspülstein dichtend aufliegt und an dem ein Gasanschlußstutzen für die Gaszufuhr in den Gasspülstein angeordnet ist. Dadurch ist in die Einrichtung auch die Gaszuführung integriert. Der Gasanschlußstutzen ist - anders als beim Stand der Technik - nicht mit dem Gasspülstein, sondern mit der Haltevorrichtung fest verbunden. Das Deckelteil übernimmt im Betrieb die Abdichtung eines im Gasspülstein vorgesehenen Gasverteilungsraums. Dadurch ist die Blechummantelung des Gasspülsteins vereinfacht oder kann ganz entfallen.In a further development of the invention, the holding device has a cover part which lies sealingly on the gas purging plug and on which a gas connecting piece for the gas supply into the gas purging plug is arranged. This also integrates the gas supply into the device. In contrast to the prior art, the gas connecting piece is not firmly connected to the gas purging plug, but rather to the holding device. During operation, the cover part seals a gas distribution space provided in the gas purging plug. This simplifies the metal sheathing of the gas purging plug or can be omitted entirely.

In der Wartungsstellung braucht der Gasspülstein lediglich vom Deckelteil abgehoben und durch einen neuen Gasspülstein ersetzt zu werden. Der Gasanschlußstutzen und die Abdeckung des Gasverteilungsraums des Gasspülsteins, nämlich das Deckelteil, ist als Bestandteil der Haltevorrichtung wiederverwendbar und braucht nicht zusammen mit dem Gasspülstein ausgetauscht zu werden.In the maintenance position, the gas purging plug only needs to be lifted off the cover part and replaced with a new gas purging plug. The gas connection piece and the cover of the gas distribution space of the gas purging plug, namely the cover part, can be reused as part of the holding device and need not be replaced together with the gas purging plug.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung von Ausführungsbeispielen. In der Zeichnung zeigen:

  • Figur 1 eine Gasspüleinrichtung im Schnitt längs der Linie I-I nach Figur 2,
  • Figur 2 eine Ansicht in Richtung des Pfeiles II nach Figur 1,
  • Figur 3 ein weiteres Ausführungsbeispiel der Gasspüleinrichtung,
  • Figur 4 eine Ansicht der Gasspüleinrichtung in Richtung des Pfeiles IV nach Figur 3,
  • Figur 5 ein drittes Ausführungsbeispiel der Gasspüleinrichtung, und
  • Figur 6 eine Teilansicht der Gasspüleinrichtung nach Figur 3 bzw. Figur 5 mit einem anstelle eines Gasspülsteins aufgesetzten Schablonenmantel.
Advantageous refinements of the invention result from the subclaims and the following description of exemplary embodiments. The drawing shows:
  • FIG. 1 shows a gas purging device in section along the line II in FIG. 2,
  • FIG. 2 shows a view in the direction of arrow II according to FIG. 1,
  • FIG. 3 shows another embodiment of the gas purging device,
  • FIG. 4 shows a view of the gas purging device in the direction of arrow IV according to FIG. 3,
  • Figure 5 shows a third embodiment of the gas purging device, and
  • FIG. 6 shows a partial view of the gas purging device according to FIG. 3 or FIG. 5 with a stencil jacket attached instead of a gas purging plug.

Ein Gefäß für eine metallurgische Schmelze weist einen Boden 1 auf. In den Figuren 1, 3 und 5 ist das Gefäß in seiner gekippten Stellung gezeigt, in der der Boden 1 etwa vertikal steht. In den Boden 1 ist ein Lochstein 2 eingesetzt. In diesem sitzt ein kegelförmiger Gasspülstein 3, der ein gasundurchlässiges, feuerfestes Außenteil 4 und ein gasdurchlässiges, feuerfestes Innenteil 5 aufweist. Im Außenteil 4 ist ein zylindrischer Gasverteilungsraum 6 ausgebildet, der zum Innenteil 5 hin und nach außen offen ist.A vessel for a metallurgical melt has a bottom 1. In Figures 1, 3 and 5, the vessel is shown in its tilted position, in which the bottom 1 is approximately vertical. A perforated brick 2 is inserted into the bottom 1. In this sits a conical gas purging plug 3, which has a gas-impermeable, fireproof outer part 4 and a gas-permeable, fireproof inner part 5. A cylindrical gas distribution space 6 is formed in the outer part 4 and is open towards the inner part 5 and outwards.

Der Gasspülstein 3 ist an einer Haltevorrichtung 7 zentriert gehalten. Diese weist ein Deckelteil 8 auf, in das ein Dichtring 9 eingesetzt ist. Der Dichtring 9 liegt an der Stirnseite 10 des Gasspülsteins 3 an. Ein Vorsprung 11 des Deckelteils 8 ragt in den Gasverteilungsraum 6. Anstelle des stirnseitigen Dichtringes 9 kann auch eine Dichthülse verwendet werden, die in den Gasverteilungsraum 6 eingesetzt und durch das Einschieben des Vorsprungs 11 dichtend verquetscht wird.The gas purging plug 3 is held centered on a holding device 7. This has a cover part 8, in which a sealing ring 9 is inserted. The sealing ring 9 rests on the end face 10 of the gas purging plug 3. A projection 11 of the cover part 8 protrudes into the gas distribution space 6. Instead of the sealing ring 9 on the end face, a sealing sleeve can also be used, which is inserted into the gas distribution space 6 and is sealingly squeezed by the insertion of the projection 11.

An dem Deckelteil 8 ist bei den Ausführungen der Figuren 1 bis 4 ein Gasanschlußstutzen 12 angeordnet, der durch den Vorsprung 11 hindurch in den Gasverteilungsraum 6 mündet.In the embodiments of FIGS. 1 to 4, a gas connection stub 12 is arranged on the cover part 8 and opens into the gas distribution space 6 through the projection 11.

Die Haltevorrichtung 7 ist an einer Befestigungsvorrichtung 13 lösbar festgelegt, die außen an dem Boden 1 angeordnet ist.The holding device 7 is releasably attached to a fastening device 13 which is arranged on the outside of the base 1.

Beim Ausführungsbeispiel nach den Figuren 1 und 2 weist die Befestigungsvorrichtung 13 vier Zapfen 14 bis 17 auf (vgl. Figur 2). Außerdem sind an ihr Anschläge 18 ausgebildet, von denen in der Figur 1 nur einer zu sehen ist.In the exemplary embodiment according to FIGS. 1 and 2, the fastening device 13 has four pins 14 to 17 (cf. FIG. 2). In addition, stops 18 are formed on it, of which only one can be seen in FIG. 1.

Die Zapfen 14 bis 17 sind mit gleich großen Querschlitzen 19 für Keile 20 versehen. In der Betriebsstellung sind die Keile 20 in die Querschlitze 19 der beiden Zapfen 16, 17 eingetrieben. Zum Lösen der Haltevorrichtung 7 werden die Keile 20 aus den Querschlitzen 19 der Zapfen 16, 17 herausgezogen und in die Querschlitze 19 der Zapfen 14, 15 eingetrieben.The pins 14 to 17 are provided with transverse slots 19 of the same size for wedges 20. In the operating position, the wedges 20 are driven into the transverse slots 19 of the two pins 16, 17. To release the holding device 7, the wedges 20 are pulled out of the transverse slots 19 of the pins 16, 17 and driven into the transverse slots 19 of the pins 14, 15.

Die Haltevorrichtung 7 des Ausführungsbeispiels nach den Figuren 1 und 2 weist eine Traverse 21 auf, an der das Deckelteil 8 befestigt ist. Die Traverse 21 ist mit zwei Handgriffen 22 versehen. An den Enden der Traverse 21 sind Bohrungen 23 ausgebildet, mit denen sie auf die Zapfen 16, 17 geschoben ist.The holding device 7 of the exemplary embodiment according to FIGS. 1 and 2 has a crossmember 21 to which the cover part 8 is fastened. The traverse 21 is provided with two handles 22. At the ends of the cross member 21 bores 23 are formed with which it is pushed onto the pins 16, 17.

Die Haltevorrichtung 7 weist weiterhin einen Zentrierring 24, der den Gasspülstein 3 umgreift und mit einer Anlagefläche 25 versehen ist, deren Konizität der Konizität des Gasspülsteins 3 entspricht. Der dargestellte Gasspülstein 3 weist keinen Blechmantel auf. Es kann jedoch zur Verbesserung der Aufnahme der von der Anlagefläche 25 auf den Gasspülstein 3 ausgeübten Kräfte günstig sein, den Gasspülstein 3 wenigstens im Bereich der Anlagefläche 25 mit einem Blechmantel zu versehen.The holding device 7 also has a centering ring 24 which surrounds the gas purging plug 3 and is provided with a contact surface 25, the taper of which corresponds to the taper of the gas purging plug 3. The gas purging plug 3 shown has no sheet metal jacket. However, in order to improve the absorption of the forces exerted by the contact surface 25 on the gas purging plug 3, it may be expedient to provide the gas purging plug 3 with a sheet metal jacket at least in the region of the contact surface 25.

Außen am Zentrierring 24 sind den Anschlägen 18 zugeordnete Auflager 26 ausgebildet. An den Zentrierring 24 sind mit Bohrungen 27 versehene Laschen 28 angeschweißt, mit denen der Zentrierring 24 auf die Zapfen 14, 15 gesetzt ist. Auch am Zentrierring 24 sind Handgriffe 29 befestigt.On the outside of the centering ring 24, supports 26 assigned to the stops 18 are formed. On the centering ring 24 tabs 28 are welded with holes, with which the centering ring 24 is placed on the pin 14, 15. Handles 29 are also attached to the centering ring 24.

Die Funktionsweise der Einrichtung nach den Figuren 1 und 2 ist etwa folgende:The mode of operation of the device according to FIGS. 1 and 2 is approximately as follows:

In den Figuren 1 und 2 ist die Einrichtung in ihrer Betriebsstellung dargestellt. Die Keile 20 sind in die Querschlitze 19 der Zapfen 16, 17 eingetrieben. Dadurch wird über die Traverse 21 das Deckelteil 8 fest gegen die Stirnseite 10 des Gasspülsteins 3 gedrückt. Dieser stützt sich an der Anlagefläche 25 ab, wobei der Zentrierring 24 über seine Auflager 26 an den Anschlägen 18 der Befestigungsvorrichtung 13 anliegt. Durch den Gasanschlußstutzen 12 kann Spülgas in den Gasspülstein 3 eingeleitet werden.In Figures 1 and 2, the device is shown in its operating position. The wedges 20 are driven into the transverse slots 19 of the pins 16, 17. As a result, the cover part 8 is pressed firmly against the end face 10 of the gas flushing block 3 via the crossmember 21. This is supported on the contact surface 25, the centering ring 24 abutting against the stops 18 of the fastening device 13 via its supports 26. Purging gas can be introduced into the gas purging plug 3 through the gas connecting piece 12.

Soll die Haltevorrichtung 7 ihre Wartungsstellung gebracht werden, dann werden die Keile 20 aus den Querschlitzen 19 der Zapfen 16, 17 herausgezogen. Mittels der Handgriffe 22 kann nun die Traverse 21 zusammen mit dem Deckelteil 8 von den Zapfen 16, 17 abgezogen werden. Danach werden die Keile 20 in die Querschlitze 19 der Zapfen 14, 15 eingetrieben. Der Zentrierring 24 wird dabei in Richtung des Pfeiles A bewegt. Er zieht dabei mittels seiner Anlagefläche 25 den Gasspülstein 3 aus dem Lochstein 2 aus. Der verschlissene Gasspülstein 3 läßt sich dann aus dem Zentrierring 24 herausziehen. Danach wird ein neuer Gasspülstein 3 eingesetzt. Die Anlagefläche 25 des Zentrierrings 24 hält diesen zentriert. Der Zentrierring 24 wird mit seinen Laschen 28 wieder auf die Zapfen 14, 15 geschoben. Dabei schiebt sich der Gasspülstein 3 zentriert in den Lochstein 2. Eine außen auf ihn aufgetragene Mörtelschicht wird dabei nicht abgestreift. Danach oder auch schon vorher wird das Deckelteil 8 auf die Stirnseite 10 des Gasspülsteins 3 und die Traverse 21 auf die Zapfen 16, 17 aufgesetzt. Schließlich werden die Keile 20 wieder in die Querschlitze 19 der Zapfen 16, 17 eingetrieben.If the holding device 7 is to be brought into its maintenance position, the wedges 20 are pulled out of the transverse slots 19 of the pins 16, 17. By means of the handles 22, the cross member 21 can now be pulled off from the pins 16, 17 together with the cover part 8. Then the wedges 20 are driven into the transverse slots 19 of the pins 14, 15. The centering ring 24 is moved in the direction of arrow A. He pulls the gas purging plug 3 out of the perforated block 2 by means of its contact surface 25. The worn gas purging plug 3 can then be pulled out of the centering ring 24. A new gas purging plug 3 is then inserted. The contact surface 25 of the centering ring 24 keeps it centered. The centering ring 24 is pushed with its tabs 28 back onto the pins 14, 15. The gas purging plug 3 is pushed into the center of the perforated brick 2. A layer of mortar applied to the outside is not stripped off. Then or even before, the cover part 8 is placed on the end face 10 of the gas purging plug 3 and the cross member 21 on the pins 16, 17. Finally, the wedges 20 are driven back into the transverse slots 19 of the pins 16, 17.

Über eine nicht näher dargestellte Querverbindung können die Traverse 21 und der Zentrierring 24 lösbar so verbunden sein, daß sie sich gemeinsam handhaben lassen.Via a cross connection, not shown, the cross member 21 and the centering ring 24 can be releasably connected so that they can be handled together.

Beim Ausführungsbeispiel nach den Figuren 3 und 4 weist die Befestigungsvorrichtung 13 zwei Zapfen 30, 31 auf, wobei jeder Zapfen 30, 31 mit zwei Querschlitzen 32, 33 für Keile 34 versehen ist. Außerdem ist die Befestigungsvorrichtung 13 mit einer Achse 35 an einem Träger 36 und mit einem Anschlag 37 versehen.In the exemplary embodiment according to FIGS. 3 and 4, the fastening device 13 has two pins 30, 31, each pin 30, 31 being provided with two transverse slots 32, 33 for wedges 34. In addition, the fastening device 13 is provided with an axis 35 on a support 36 and with a stop 37.

Die Haltevorrichtung 7 der Figuren 3 und 4 weist Schwenkhebel 38 auf, die an ihrem einen Ende an der Achse 35 schwenkbar gelagert sind. Am anderen Ende der Schwenkhebel 38 sind U-Profile 39 befestigt, die den Zapfen 30 bzw. 31 umgreifen (vgl. Figur 4). An den Schwenkhebeln 38 ist ein Handgriff 40 und ein Gegenstück 41 für den Anschlag 37 befestigt.The holding device 7 of Figures 3 and 4 has pivoting levers 38 which are pivotally mounted at one end on the axis 35. At the other end of the pivot lever 38, U-profiles 39 are fastened, which engage around the pin 30 or 31 (see FIG. 4). A handle 40 and a counterpart 41 for the stop 37 are fastened to the swivel levers 38.

Am Schwenkhebel 38 ist ein rohrförmiger Führungskörper 42 schwenkbar gelagert, an dem das Deckelteil 8 befestigt ist. Dessen Vorsprung 11 zentriert den Gasspülstein 3 am Deckelteil 8. Der Gasspülstein 3 ist mittels Schrauben 43 am Deckelteil 8 lösbar befestigt.A tubular guide body 42 on which the cover part 8 is fastened is pivotably mounted on the pivot lever 38. Its projection 11 centers the gas purging plug 3 on the cover part 8. The gas purging plug 3 is detachably fastened to the cover part 8 by means of screws 43.

Außer dem Schwenkhebel 38 greift am Führungskörper 42 ein Hebel 44 an, der an einem weiteren Träger 45 der Befestigungsvorrichtung 13 schwenkbar gelagert ist. Die Hebel 44, 38 sind dabei so angeordnet, daß beim Verschwenken der Gasspülstein 3 zunächst im wesentlichen senkrecht zur Ebene der Lochsteinöffnung aus dem Lochstein 2 gezogen und anschließend auf einer bogenförmigen Bahn etwa um 90° in seine Wartungsstellung verschwenkt wird. In Figur 3 ist diese Wartungsstellung des Gasspülsteins 3 strichliert dargestellt.In addition to the pivot lever 38, a lever 44 acts on the guide body 42 and is pivotably mounted on a further carrier 45 of the fastening device 13. The levers 44, 38 are arranged so that when the gas purging plug 3 is pivoted, it is first pulled out of the perforated block 2 essentially perpendicularly to the plane of the perforated brick opening and is then pivoted about 90 ° into its maintenance position on an arcuate path. This maintenance position of the gas purging plug 3 is shown in broken lines in FIG.

Die Funktionsweise ist etwa folgende:The way it works is as follows:

In der Betriebsstellung sind die Keile 34 in die Querschlitze 32 eingetrieben. Der am Deckelteil 8 zentriert befestigte Gasspülstein 3 ist dadurch in dem Lochstein 2 zentriert gehalten.In the operating position, the wedges 34 are driven into the transverse slots 32. The gas purging plug 3 fastened in the center of the cover part 8 is thereby held centered in the perforated block 2.

Nach dem Verschleiß des Gasspülsteins 3 werden die Keile 34 aus den Querschlitzen 32 gezogen und in die Querschlitze 33 eingetrieben. Dadurch wird der Gasspülstein 3 im Lochstein 2 gelöst.After the gas purging plug 3 has worn out, the wedges 34 are pulled out of the transverse slots 32 and driven into the transverse slots 33. As a result, the gas purging plug 3 is released in the perforated brick 2.

Mittels des Handgriffes 40 wird dann die Haltevorrichtung 7 gezogen. Dabei bewegt sich der Gasspülstein 3 zunächst auf einer im wesentlichen linearen Bahn senkrecht zur Ebene der Lochsteinöffnung, so daß er nicht im Lochstein 2 anschlägt. Beim weiteren Ziehen am Handgriff 40 schwenkt der Gasspülstein 3 dann auf einer bogenförmigen Bahn in die Wartungsstellung, in der das Gegenstück 41 des Schwenkhebels 38 am Anschlag 37 anschlägt. Der Gasspülstein 3 ist jetzt frei zugänglich und kann am Deckelteil 8 ausgetauscht werden.The holding device 7 is then pulled by means of the handle 40. The gas purging plug 3 initially moves on an essentially linear path perpendicular to the level of the perforated brick opening, so that it does not strike the perforated brick 2. When the handle 40 is pulled further, the gas purging plug 3 then pivots on an arcuate path into the maintenance position in which the counterpart 41 of the pivoting lever 38 strikes the stop 37. The gas purging plug 3 is now freely accessible and can be replaced on the cover part 8.

Mittels der Haltevorrichtung 7 wird dann das Deckelteil 8 mit dem neuen Gasspülstein 3 wieder in die Betriebsstellung geschwenkt. Dabei tritt der Gasspülstein 3 zentriert in den Lochstein 2 ein. Schließlich werden die Keile 34 in die Querschlitze 32 getrieben, so daß der Gasspülstein 3 im Lochstein 2 zentriert gehalten ist.By means of the holding device 7, the cover part 8 with the new gas purging plug 3 is then pivoted back into the operating position. The gas purging plug 3 enters the perforated brick 2 centered. Finally, the wedges 34 are driven into the transverse slots 32 so that the gas purging plug 3 is kept centered in the perforated brick 2.

Beim Ausführungsbeispiel nach Figur 5 gleicht die Schwenkvorrichtung der des Ausführungsbeispiels nach Figur 3. Der Gasspülstein 3 ist jedoch nicht mittels Schrauben, sondern mit einem Zentrierring 46 an dem Deckelteil 8 gehalten. Anders als der Zentrierring 24 des Ausführungsbeispiels nach Figur 1 ist der Zentrierring 46 nicht selbst an der Befestigungsvorrichtung 13 festlegbar. Der Zentrierring 46 ist mit einem Rand 47 versehen, der das Deckelteil 8 umgreift. Der Rand 47 und das Deckelteil 8 sind nach Art eines Bajonettverschlusses gestaltet, so daß durch Drehen des Zentrierringes 46 um die Längsachse des Gasspülsteins 3 der Zentrierring 46 sich mit dem Deckelteil 8 verspannt, wobei die Anlagefläche 25 des Zentrierringes 46 den Gasspülstein 3 an seinem konischen Umfang zentriert hält und ihn am Deckelteil 8 festlegt.In the exemplary embodiment according to FIG. 5, the pivoting device is identical to that of the exemplary embodiment according to FIG. 3. However, the gas purging plug 3 is not held on the cover part 8 by means of screws, but with a centering ring 46. In contrast to the centering ring 24 of the exemplary embodiment according to FIG. 1, the centering ring 46 cannot itself be fixed on the fastening device 13. The centering ring 46 is provided with an edge 47 which engages around the cover part 8. The edge 47 and the cover part 8 are designed in the manner of a bayonet lock, so that by rotating the centering ring 46 about the longitudinal axis of the gas purging plug 3, the centering ring 46 is braced with the cover part 8, the contact surface 25 of the centering ring 46 the gas purging plug 3 on its conical Keeps the circumference centered and fixes it on the cover part 8.

Beim Ausführungsbeispiel nach Figur 5 ist ein handelsüblicher Gasspülstein 3 verwendet. Dieser weist einen Blechmantel 48 und ein an ihm festgelegtes Gasspülrohr 49 auf. Das Gasspülrohr 49 ragt durch den Führungskörper 42. Dichtungsmittel zwischen dem Deckelteil 8 und dem Gasspülstein 3 erübrigen sich hier. Die Ausführung nach Figur 5 kann jedoch auch für einen Gasspülstein verwendet werden, wie er bei den Ausführungsbeispielen nach den Figuren 1 und 3 dargestellt ist. Am Führungskörper 42 ist dann der Gasanschlußstutzen 12 an einer Klappe 57 (vgl. Figur 6) ausgebildet, die offen ist, wenn ein Gasspülstein 3 nach Figur 5 verwendet wird und geschlossen wird, wenn ein Gasspülstein 3 nach den Figuren 1, 3 zum Einsatz kommt.In the exemplary embodiment according to FIG. 5, a commercially available gas purging plug 3 is used. This has a sheet metal jacket 48 and a gas purge tube 49 fixed to it. The gas purging tube 49 protrudes through the guide body 42. Sealing means between the cover part 8 and the gas purging stone 3 are not necessary here. The embodiment according to FIG. 5 can, however, also be used for a gas purging plug, as is shown in the exemplary embodiments according to FIGS. 1 and 3. The gas connecting piece 12 is then formed on the guide body 42 on a flap 57 (see FIG. 6) which is open when a gas purging plug 3 according to FIG. 5 is used and is closed when a gas purging plug 3 according to FIGS. 1, 3 is used .

Ist der Gasspülstein 3 - wie oben erwähnt - wenigstens im Bereich der Umgebung seiner Stirnseite 10 mit einem Teil-­Blechmantel versehen, dann kann dieser Teil-Blechmantel so ausgestaltet sein, daß er die Funktion des Zentrierringes 24 bzw. des Zentrierringes 46 übernimmt.If the gas purging plug 3 - as mentioned above - is provided with a partial sheet metal jacket at least in the vicinity of its end face 10, then this partial sheet metal jacket can be designed such that it takes over the function of the centering ring 24 or the centering ring 46.

Bei der Einrichtung nach Figur 6 ist zur Vereinfachung der Darstellung der am Führungskörper 42 angreifende Schwenkhebel 38 und der Hebel 44 nicht dargestellt. Der Führungskörper 42 ist ebenso gelagert, wie dies bei den Figuren 3 und 5 dargestellt ist. Am Deckelteil 8 ist beim Einsatzfall nach Figur 6 ein Boden 50 eines Schablonenmantels 51 mittels Schraubbolzen 52 lösbar befestigt. Das Deckelteil 8 greift mit seinem Vorsprung 11 zentrierend in den Boden 50. Die Außenkontur des Schablonenmantels 51 entspricht der des in den Lochstein 2 einzusetzenden Gasspülsteins 3.In the device according to FIG. 6, to simplify the illustration, the pivoting lever 38 engaging on the guide body 42 and the lever 44 are not shown. The guide body 42 is also mounted, as shown in Figures 3 and 5. In the case of use according to FIG. 6, a base 50 of a template casing 51 is detachably fastened to the cover part 8 by means of screw bolts 52. The cover part 8 engages with its protrusion 11 in the center of the bottom 50. The outer contour of the template shell 51 corresponds to that of the gas purging plug 3 to be inserted in the perforated brick 2.

An einer Führungshülse 54 des Schablonenmantels 51 ist ein Massezufuhrrohr 55 verschieblich und drehbar gelagert. Dieses weist an seinem einen Ende einen Spritzkopf 56 auf. An dem Deckelteil 8 abgewandten Ende des Führungskörpers 42 ist eine Klappe 57 schwenkbar angeordnet, an der der Gasanschlußstutzen 12 befestigt ist. Die Klappe 57 ist geöffnet, wenn das Massezufuhrrohr 55 eingesetzt ist, und geschlossen, wenn der Gasspülstein 3 am Deckelteil 8 befestigt ist.On a guide sleeve 54 of the template shell 51, a mass supply tube 55 is slidably and rotatably mounted. This has a spray head 56 at one end. On the end of the guide body 42 facing away from the cover part 8, a flap 57 is pivotally arranged, to which the gas connection piece 12 is fastened. The flap 57 is open when the mass supply pipe 55 is inserted and closed when the gas purging plug 3 is attached to the cover part 8.

Das Massezufuhrrohr 55 ragt über die Klappe 57 hinaus und ist dort mit einer Massezufuhreinrichtung verbunden.The mass supply pipe 55 protrudes beyond the flap 57 and is connected there to a mass supply device.

Zur Abdeckung des Schablonenmantels 51 gegenüber dem Inneren des Gefäßes ist an dem Massezufuhrrohr 55 eine Abdeckplatte 58 mit einem Kragen 59 befestigt.A cover plate 58 with a collar 59 is fastened to the mass supply pipe 55 in order to cover the stencil casing 51 with respect to the interior of the vessel.

Die Arbeitsweise der Einrichtung nach Figur 6 ist etwa folgende:The mode of operation of the device according to FIG. 6 is approximately as follows:

Ist nach einem längeren Betrieb nicht nur der Gasspülstein 3, sondern in dessen Umgebung auch der Lochstein 2 verschlissen, dann wird vor dem Einsetzen eines neuen Gasspülsteins an dem Deckelteil 8 zunächst der Schablonenmantel 51 mit dem Massezufuhrrohr 55 befestigt und mittels der Haltevorrichtung 7 in der oben beschriebenen Weise in den Lochstein 2 eingesetzt. Dem Massezufuhrrohr 55 wird dann Ausbesserungsmasse zugeführt, die in der Umgebung des Schablonenmantels 51 mittels des Spritzkopfes 56 auf den verschlissenen Bereich des Lochsteins 2 aufgetragen wird. Zur besseren Verteilung der Ausbesserungsmasse wird dem Spritzkopf 56 nötigenfalls Druckluft zugeführt. Die Verteilung der Ausbesserungsmasse läßt sich durch Verschieben und Drehen des Massezufuhrrohres 55 steuern. Nach dem Aushärten der Ausbesserungsmasse wird mittels der Haltevorrichtung 7, speziell des Deckelteils 8, der Schablonenmantel 51 mit dem Massezufuhrrohr 55 und dem Spritzkopf 56 aus dem Lochstein 2 herausgezogen. Dieser ist dadurch so ausgebessert, daß der nachfolgend mit dem Deckelteil 8 verbundene Gasspülstein 3 in den Lochstein 2 paßt und in diesem zentriert gehalten ist.If after a long period of operation not only the gas purging plug 3, but also the perforated brick 2 in its vicinity, is worn out, then before inserting a new gas purging plug on the cover part 8, the template casing 51 is first attached to the mass supply pipe 55 and by means of the holding device 7 in the above described manner used in the perforated brick 2. Repair material is then supplied to the mass supply pipe 55, which is applied in the vicinity of the stencil casing 51 by means of the spray head 56 to the worn area of the perforated brick 2. Compressed air is supplied to the spray head 56 if necessary for better distribution of the repair compound. The distribution of the repair mass can be controlled by moving and rotating the mass supply pipe 55. After the repairing compound has hardened, the template casing 51 with the mass supply pipe 55 and the spray head 56 is pulled out of the perforated brick 2 by means of the holding device 7, in particular the cover part 8. This is so improved that the gas purging plug 3 subsequently connected to the cover part 8 fits into the perforated brick 2 and is held centered therein.

Ein dem Schablonenmantel 51 und damit der Außenkontur des Gasspülsteins 3 entsprechender Schablonenmantel kann nicht nur zur gezielten Ausbesserung eines verschlissenen Lochsteins 2, sondern auch schon bei der Erstellung der Ausmauerung des Gefäßes zum lagerichtigen Setzen des Lochsteins verwendet werden. Es wird in diesem Fall vor der Ausmauerung des Gefäßes an dem Deckelteil 8 der Haltevorrichtung 7 ein Schablonenmantel 51 - ohne Massezufuhrrohr 55 - befestigt und in das Gefäß geschwenkt. Auf diesen Schablonenmantel 51 wird dann der Lochstein 2 aufgesetzt. Dadurch ist gewährleistet, daß der Lochstein 2 von vornherein gegenüber der am Boden des Gefäßes angeordneten Befestigungsvorrichtung 13 richtig ausgerichtet sitzt. Dieser Schablonenmantel wird als verlorener Schablonenmantel ausgelegt sein, der nicht notwendigerweise wiederverwendbar ist.A template jacket corresponding to the template jacket 51 and thus the outer contour of the gas purging brick 3 can be used not only for the targeted repair of a worn perforated brick 2, but also during the creation of the The lining of the vessel can be used to position the perforated brick in the correct position. In this case, a template jacket 51 - without a mass feed tube 55 - is fastened to the cover part 8 of the holding device 7 and pivoted into the vessel before the lining of the vessel. The perforated brick 2 is then placed on this template casing 51. This ensures that the perforated brick 2 is correctly aligned from the outset relative to the fastening device 13 arranged on the bottom of the vessel. This stencil cover will be designed as a lost stencil cover that is not necessarily reusable.

Insgesamt ist also mit der beschriebenen Einrichtung ein zentrierter Einbau des Lochsteins, ein zentriertes Einsetzen von Gasspülsteinen in diesen und ein zentriertes Ausbessern des Lochsteins möglich.Overall, with the device described, a centered installation of the perforated brick, a centered insertion of gas flushing stones in these and a centered repair of the perforated brick are possible.

Claims (16)

1. Gasspüleinrichtung an einem Gefäß für eine metallurgische Schmelze, mit einem Gasspülstein, der in einen Lochstein des Gefäßes eingesetzt ist, wobei außen an dem Gefäß eine Befestigungsvorrichtung angeordnet ist, gegen die eine Haltevorrichtung verspannbar ist, die in ihrer Betriebsstellung gegen den Gasspülstein drückt, dadurch gekennzeichnet,
daß der Gasspülstein (3) an der Haltevorrichtung (7) zentriert gehalten ist und daß die Haltevorrichtung (7) durch Auszugsmittel (20, 34) von der Befestigungsvorrichtung (13) lösbar ist, wobei die Haltevorrichtung (7) den Gasspülstein (3) von der Betriebsstellung in ihre Wartungsstellung außerhalb des Lochsteins (2) mitnimmt.1. gas purging device on a vessel for a metallurgical melt, with a gas purging plug which is inserted into a perforated brick of the vessel, a fastening device being arranged on the outside of the vessel, against which a holding device can be clamped, which in its operating position presses against the gas purging plug, characterized,
that the gas purging plug (3) is held centered on the holding device (7) and that the holding device (7) can be detached from the fastening device (13) by means of pull-out means (20, 34), the holding device (7) removing the gas purging plug (3) from takes the operating position into its maintenance position outside the perforated brick (2). 2. Gasspüleinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Haltevorrichtung (7) ein Deckelteil (8) aufweist, das an dem Gasspülstein (3) dichtend aufliegt und an dem ein Gasanschlußstutzen (12) für die Gaszufuhr in den Gasspülstein (3) angeordnet ist.2. Gas purging device according to claim 1,
characterized,
that the holding device (7) has a cover part (8) which rests sealingly on the gas purging plug (3) and on which a gas connecting piece (12) for the gas supply into the gas purging plug (3) is arranged. 3. Gasspüleinrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Befestigungsvorrichtung (13) Zapfen (14 bis 17; 30, 31) aufweist und die Haltevorrichtung (7) in ihrer Betriebsstellung an den Zapfen (14 bis 17; 30, 31) mittels in Querschlitze (19; 32) eingeschobenen Keilen (20; 34) arretiert ist.3. Gas purging device according to claim 1 or 2,
characterized,
that the fastening device (13) has pins (14 to 17; 30, 31) and the holding device (7) in its operating position on the pins (14 to 17; 30, 31) by means of wedges (20 ; 34) is locked. 4. Gasspüleinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Auszugsmittel von in Querschlitze (19; 33) von Zapfen (14, 15; 30, 31) der Befestigungsvorrichtung (13) eintreibbaren Keilen (20, 34) gebildet sind, die dabei auf die Haltevorrichtung (7) drücken.4. Gas purging device according to one of the preceding claims,
characterized,
that the pull-out means are formed by wedges (20, 34) which can be driven into cross slots (19; 33) by pins (14, 15; 30, 31) of the fastening device (13) and which press on the holding device (7). 5. Gasspüleinrichtung nach Anspruch 3 und 4, dadurch gekennzeichnet,
daß die Keile (20; 34) zum Arretieren und zum Ausziehen die gleichen sind.5. Gas purging device according to claim 3 and 4, characterized in
that the wedges (20; 34) for locking and pulling out are the same. 6. Gasspüleinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Deckelteil (8) mit einem Vorsprung (11) in einen Gasverteilraum (6) des Gasspülsteins (3) eingreift.6. Gas purging device according to one of the preceding claims,
characterized,
that the cover part (8) engages with a projection (11) in a gas distribution space (6) of the gas purging plug (3). 7. Gasspüleinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß am Deckelteil (8) ein Dichtring (9) angeordnet ist, der an der Stirnseite (10) des Gasspülsteins (3) anliegt.7. Gas purging device according to one of the preceding claims,
characterized,
that on the cover part (8) a sealing ring (9) is arranged, which rests on the end face (10) of the gas purging plug (3). 8. Gasspüleinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß die Haltevorrichtung (7) außer dem Deckelteil (8) einen Zentrierring (24, 46) aufweist, der eine der Konizität des Gasspülsteins (3) angepaßte, den Gasspülstein (3) umfassende Anlagefläche (25) aufweist und daß mittels des Zentrierrings (24) der Gasspülstein (3) ausziehbar ist.8. Gas purging device according to one of the preceding claims, characterized in
that the holding device (7) has, in addition to the cover part (8), a centering ring (24, 46) which has a contact surface (25) which is adapted to the conicity of the gas flushing plug (3) and comprises the gas flushing plug (3) and that by means of the centering ring (24 ) the gas purging plug (3) can be pulled out. 9. Gasspüleinrichtung nach Anspruch 8,
dadurch gekennzeichnet,
daß der Zentrierring (46) mit dem Deckelteil (8) lösbar verbunden ist.9. gas purging device according to claim 8,
characterized,
that the centering ring (46) is detachably connected to the cover part (8). 10. Gasspüleinrichtung nach einem der vorhergehenden Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß der Gasspülstein (3) wenigstens in seinem konischen Bereich in der Umgebung seiner dem Deckelteil (8) zugewandten Stirnseite (10) mit einem Blechmantel (48) versehen ist und daß der Blechmantel (48) mit dem Deckelteil (8) verbindbar ist.10. Gas purging device according to one of the preceding claims 1 to 7,
characterized,
that the gas purging plug (3) is provided with a sheet metal jacket (48) at least in its conical area in the vicinity of its end face (10) facing the cover part (8) and that the sheet metal jacket (48) can be connected to the cover part (8). 11. Gasspüleinrichtung nach Anspruch 8,
dadurch gekennzeichnet,
daß der Zentrierring (24) auf Zapfen (14, 15) der Befestigungsvorrichtung (13) aufgesetzt ist und von einem Anschlag (18) begrenzt ist.11. Gas purging device according to claim 8,
characterized,
that the centering ring (24) on the pin (14, 15) of the fastening device (13) is placed and is limited by a stop (18). 12. Gasspüleinrichtung nach Anspruch 11,
dadurch gekennzeichnet,
daß das Deckelteil (8) den Gasspülstein (3) gegen die Anlagefläche (25) des Zentrierringes (24) drückt.12. Gas purging device according to claim 11,
characterized,
that the cover part (8) presses the gas purging plug (3) against the contact surface (25) of the centering ring (24). 13. Gasspüleinrichtung nach einem der vorhergehenden Ansprüche 1 bis 10,
dadurch gekennzeichnet,
daß die Haltevorrichtung (7) eine an der Befestigungsvorrichtung (13) gelagerte Schwenkhebelanordnung (38, 42, 44) aufweist, mit dem der Gasspülstein (3) in den Lochstein (2) einsetzbar und aus dem Lochstein (2) ausziehbar ist, wobei das Deckelteil (8) zusammen mit dem Gasspülstein (3) in die Wartungsstellung schwenkbar ist.13. Gas purging device according to one of the preceding claims 1 to 10,
characterized,
that the holding device (7) has a pivot lever arrangement (38, 42, 44) mounted on the fastening device (13), with which the gas purging plug (3) can be inserted into the perforated brick (2) and can be pulled out of the perforated brick (2), the Cover part (8) together with the gas purging plug (3) can be pivoted into the maintenance position. 14. Gasspüleinrichtung nach Anspruch 13,
dadurch gekennzeichnet,
daß die Schwenkhebelanordnung (38, 42, 44) eine Kinematik aufweist, die beim Ausziehen den Gasspülstein (3) zunächst im wesentlichen senkrecht zur Lochsteinöffnung nach außen bewegt und ihn anschließend auf einer bogenförmigen Bahn in die Wartungsstellung verschwenkt.14. Gas purging device according to claim 13,
characterized,
that the swivel lever arrangement (38, 42, 44) has kinematics which, when pulled out, initially moves the gas purging plug (3) essentially perpendicularly to the perforated brick opening and then pivots it on an arcuate path into the maintenance position. 15. Gasspüleinrichtung nach Anspruch 14,
dadurch gekennzeichnet,
daß die Bewegung auf der bogenförmigen Bahn in der Wartungsstellung der Schwenkhebelanordnung (38, 42, 44) durch einen Anschlag (37) begrenzt ist.15. gas purging device according to claim 14,
characterized,
that the movement on the arcuate path in the maintenance position of the pivot lever arrangement (38, 42, 44) is limited by a stop (37). 16. Gasspüleinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß ein Schablonenmantel (51) vorgesehen ist, der an der Haltevorrichtung (7) lösbar zentriert festlegbar ist und die Außenkontur des Gasspülsteins (3) aufweist.16. Gas purging device according to one of the preceding claims,
characterized,
that a stencil jacket (51) is provided which can be releasably fixed in the center of the holding device (7) and has the outer contour of the gas purging plug (3).
EP89116617A 1988-10-01 1989-09-08 Gas bubbling device Expired - Lifetime EP0364723B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89116617T ATE85654T1 (en) 1988-10-01 1989-09-08 GAS FLUSHING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3833504A DE3833504A1 (en) 1988-10-01 1988-10-01 GAS PLEASE DEVICE
DE3833504 1988-10-01

Publications (2)

Publication Number Publication Date
EP0364723A1 true EP0364723A1 (en) 1990-04-25
EP0364723B1 EP0364723B1 (en) 1993-02-10

Family

ID=6364233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116617A Expired - Lifetime EP0364723B1 (en) 1988-10-01 1989-09-08 Gas bubbling device

Country Status (9)

Country Link
US (2) US5007621A (en)
EP (1) EP0364723B1 (en)
JP (1) JPH02118013A (en)
KR (1) KR0138106B1 (en)
CN (1) CN1015910B (en)
AT (1) ATE85654T1 (en)
DE (2) DE3833504A1 (en)
ES (1) ES2037925T3 (en)
ZA (1) ZA896853B (en)

Cited By (4)

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WO1992000392A1 (en) * 1990-07-02 1992-01-09 Veitscher Magnesitwerke-Actien-Gesellschaft Withdrawal device for ladle bricks
WO1992004998A1 (en) * 1990-09-14 1992-04-02 Veitscher Magnesitwerke-Actien-Gesellschaft Device for inserting and removing stopper bricks for metallurgical vessels
EP1078702A1 (en) * 1999-08-27 2001-02-28 MANNESMANN Aktiengesellschaft Gas flushing device for a metallurgical vessel
EP2343386A1 (en) 2010-01-12 2011-07-13 SMS Siemag AG Device for the installation and withdrawal of a porous plug

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US20060004408A1 (en) * 2001-06-08 2006-01-05 Morris Edward J Method and apparatus for sealing access
KR100829814B1 (en) * 2001-12-18 2008-05-16 주식회사 포스코 Device for injecting gas
RU2230796C1 (en) * 2003-03-06 2004-06-20 Хлопонин Виктор Николаевич Blow-off component of an aggregate for steel production or its heat finishing
DE10360827B3 (en) * 2003-12-23 2005-06-09 Refractory Intellectual Property Gmbh & Co. Kg Holding device for a rinsing element for a metallurgical vessel useful in secondary metallurgical treatment of metal melts has curved metal pieces
HUE029621T2 (en) * 2012-08-27 2017-03-28 Refractory Intellectual Property Gmbh & Co Kg Gas purging element with its corresponding gas supply line
EP2893992B1 (en) * 2014-01-09 2015-12-30 Refractory Intellectual Property GmbH & Co. KG Gas flushing element and associated gas connection element
KR101481057B1 (en) * 2014-05-15 2015-01-14 삼정전기공업 주식회사 Production method of pole-mounted transformers
WO2024110602A1 (en) 2022-11-25 2024-05-30 Vesuvius Group, S.A. Gas purge plug and system for easy installation of the gas purge plug in a metallurgical vessel

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000392A1 (en) * 1990-07-02 1992-01-09 Veitscher Magnesitwerke-Actien-Gesellschaft Withdrawal device for ladle bricks
WO1992004998A1 (en) * 1990-09-14 1992-04-02 Veitscher Magnesitwerke-Actien-Gesellschaft Device for inserting and removing stopper bricks for metallurgical vessels
AU643544B2 (en) * 1990-09-14 1993-11-18 Veitscher Magnesitwerke-Actien-Gesellschaft Device for inserting and removing stopper bricks for metallurgical vessels
TR26624A (en) * 1990-09-14 1995-03-15 Veitscher Magnesitwerke Ag ASSEMBLY FOR THE INSTALLATION AND DISASSEMBLY OF WASHING GAS FOR METALLURGICAL CONTAINERS.
EP1078702A1 (en) * 1999-08-27 2001-02-28 MANNESMANN Aktiengesellschaft Gas flushing device for a metallurgical vessel
DE19941639A1 (en) * 1999-08-27 2001-03-08 Mannesmann Ag Gas purging device for a metallurgical vessel
DE19941639C2 (en) * 1999-08-27 2001-09-13 Mannesmann Ag Gas purging device for a metallurgical vessel
EP2343386A1 (en) 2010-01-12 2011-07-13 SMS Siemag AG Device for the installation and withdrawal of a porous plug
DE102010004958A1 (en) 2010-01-12 2011-07-14 SMS Siemag Aktiengesellschaft, 40237 Purge plug installation and removal tool

Also Published As

Publication number Publication date
DE3833504A1 (en) 1990-04-05
DE58903517D1 (en) 1993-03-25
KR0138106B1 (en) 1998-07-15
ES2037925T3 (en) 1993-07-01
US5007621A (en) 1991-04-16
ZA896853B (en) 1990-06-27
EP0364723B1 (en) 1993-02-10
KR900006536A (en) 1990-05-08
CN1041617A (en) 1990-04-25
DE3833504C2 (en) 1990-10-04
ATE85654T1 (en) 1993-02-15
JPH02118013A (en) 1990-05-02
US5056762A (en) 1991-10-15
CN1015910B (en) 1992-03-18

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