EP0476275A1 - Disposition d'une pièce de brassage - Google Patents

Disposition d'une pièce de brassage Download PDF

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Publication number
EP0476275A1
EP0476275A1 EP91112700A EP91112700A EP0476275A1 EP 0476275 A1 EP0476275 A1 EP 0476275A1 EP 91112700 A EP91112700 A EP 91112700A EP 91112700 A EP91112700 A EP 91112700A EP 0476275 A1 EP0476275 A1 EP 0476275A1
Authority
EP
European Patent Office
Prior art keywords
sink
arrangement according
perforated
stone
face
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.)
Withdrawn
Application number
EP91112700A
Other languages
German (de)
English (en)
Inventor
Lorenz Dötsch
Karl-Heinz Höfer
Helmut Dipl.-Ing. Preyer
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.)
RHI AG
Original Assignee
Radex Heraklith Industriebeteiligungs 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 Radex Heraklith Industriebeteiligungs AG filed Critical Radex Heraklith Industriebeteiligungs AG
Publication of EP0476275A1 publication Critical patent/EP0476275A1/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the invention relates to a sink arrangement for introducing gases and / or solid reactants into the molten metal of a metallurgical melting vessel, consisting of a sink, a perforated stone sleeve surrounding it and / or a perforated stone surrounding the sink or the perforated stone sleeve.
  • the assembly poses not inconsiderable difficulties, especially due to the sometimes heavy weight of the individual parts of the sink arrangement.
  • Mounting brackets via which the sink can be lifted into the corresponding opening of the perforated block, are known for example from DE-GM 87 00 094 or DE-PS 35 20 783.
  • the known mounting brackets require that the sink is covered with sheet metal.
  • the mounting bracket according to DE-GM 87 00 094 can only have a relatively small opening, since it is expressed from the sheet metal jacket, the mounting bracket according to DE-PS 35 20 783 has the disadvantage that the outer circumferential width of the metal jacket is widened , which results in problems when inserting into the associated perforated brick, since the corresponding opening width is only slightly larger than the diameter of the associated gas purge brick at its upper end.
  • the invention is based on the object of demonstrating a way in which, while avoiding the disadvantages described above, sink assemblies of the type mentioned at the outset can be inserted as simply as possible into the bottom or the wall of a metallurgical melting vessel.
  • the invention is based on the general consideration of arranging necessary assembly devices directly in the ceramic matrix material of the component or components of the flushing arrangement, specifically in the region of the end face facing the molten metal.
  • the invention then describes a generic sink arrangement, which is characterized in that at least one assembly device for releasable connection to a lifting device is inserted into the face of the sink, the perforated stone sleeve and / or the perforated stone facing the molten metal.
  • each of the parts of the sink arrangement can be designed accordingly; in particular, however, in the case of a common prefabrication, which will be explained in more detail below, it is of course also sufficient to design only one component, then preferably the perforated brick, accordingly.
  • the "assembly device” can be designed differently. It can comprise a hook or the like anchored in the ceramic; however, it can also be designed to be detachable, with, for example, a receiving part being fixed in the matrix material of the ceramic body, while an associated hook or the like can be releasably inserted into this receiving part. However, it can also consist of one or more recesses into which a lifting tool is inserted directly or indirectly. In this case, the connecting elements could also be arranged on the side, provided there is sufficient space available during installation.
  • a hook, a loop, a bracket or the like is cast into the upper part (facing the molten metal) of the component; of course in such a way that it fulfills the feature of claim 1, namely to be releasably connected to a lifting device.
  • the anchoring between the ceramic and the mounting device is improved by a thread, an arrangement such as an expansion anchor or similar reinforcement elements.
  • a bead-shaped depression can also be provided in the end face of the component, which depression is formed in-situ, for example during pressing or casting.
  • This depression can, for example, have a ceramic internal thread at the same time; however, it is also possible to glue or mortar a metal sleeve on the wall side, which is designed with such a thread.
  • the anchoring part, the hook or the like which then has a corresponding external thread, can be inserted into the corresponding receptacle in a stationary but releasable manner.
  • the bead-shaped depression or the anchoring element can also be formed with a corresponding pin / slot connection, similar to a bayonet lock.
  • An alternative embodiment of the invention provides for the corresponding receiving parts to be mortared or glued into corresponding bead-shaped depressions as prefabricated parts after the production of the ceramic body.
  • an advantageous embodiment of the invention proposes to arrange at least three mounting devices at approximately the same angular distance from one another in the region of the end face of the perforated brick. If the assembly devices consist, for example, of the hooks mentioned above, they can be hooked into the appropriate dishes of a lifting device and the entire device can then be fitted.
  • the assembly device is designed to be detachable, as described above, the corresponding handling means can then be removed and used again.
  • the mounting device is provided in the sink itself, a single device of this type is of course sufficient, which is then preferably provided in the end face of the sink along its central longitudinal axis.
  • the sink 10 shown there is one with directed porosity.
  • the sink 10 according to FIG. 1 is a cast sink.
  • a hook 12 was also cast in the area of the end face 10a, the lower section 12a of which thus lies in the ceramic matrix material 10b of the sink and in this area is designed in the end similarly to an expansion anchor at 12b, so that it lies firmly in the ceramic matrix material 10b.
  • the hook 12 projects above the end face 10a.
  • the sink 10 can be gripped on the hook 12 and inserted into the associated perforated brick 14, the sink 10 and perforated brick 14 being mortared together in a known manner along their corresponding surfaces.
  • the embodiment according to FIG. 2 differs from that according to FIG. 1 in that perforated stone 14 and sink 10 are already prefabricated outside the metallurgical melting vessel, that is to say they have been mortared together.
  • the mounting device (the hook) 12 is also not arranged in the sink 10 here; rather, three hooks 12 ', 12 "and 12'” are arranged in the end face 14a of the perforated brick 14. They are also not - like the hook 12 in the sink 10 according to FIG. 1 - also cast into the matrix material of the perforated block 14. Rather, three bead-shaped depressions 16 were formed in the area of the end face 14a during the production of the perforated brick 14, into which sleeve-shaped inserts 18 with an internal thread 20 were later mortared.
  • the internal thread 20 is in each case formed within a metal sleeve which is (are) glued into the sleeve-shaped inserts 18.
  • the three mounting devices are each arranged at an angle of 120 to one another, so that a uniform load distribution arises when the unit consisting of perforated stone 14 and integrated sink 10 is attached to the dishes of a lifting device (not shown) and in the wall or positioned at the bottom of the metallurgical melting vessel and mortared there.
  • FIG. 3 largely corresponds to that according to FIG. 2, with the difference that a perforated stone sleeve 22 is arranged between the perforated stone 14 and the sink 10, the components 10, 14, 22 being mortared together again along their corresponding surfaces.
  • the pre-assembled unit is installed as a whole via the assembly devices.
  • a closed bracket can of course also be used, which is then cast with its two ends, for example, into the ceramic matrix material.
  • other thickenings can be provided in the area of the hook 12 instead of the expansion dowel-like sections 12b in order to securely fix this in the ceramic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
EP91112700A 1990-08-25 1991-07-29 Disposition d'une pièce de brassage Withdrawn EP0476275A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4026977A DE4026977C1 (fr) 1990-08-25 1990-08-25
DE4026977 1990-08-25

Publications (1)

Publication Number Publication Date
EP0476275A1 true EP0476275A1 (fr) 1992-03-25

Family

ID=6412957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112700A Withdrawn EP0476275A1 (fr) 1990-08-25 1991-07-29 Disposition d'une pièce de brassage

Country Status (4)

Country Link
US (1) US5437435A (fr)
EP (1) EP0476275A1 (fr)
CA (1) CA2049684A1 (fr)
DE (1) DE4026977C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110143839A1 (en) * 2008-12-01 2011-06-16 Mclaughlin Thomas Exercise control device for video games
US20100137105A1 (en) * 2008-12-01 2010-06-03 Mclaughlin Thomas Riding the joystick system to health and fitness

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458641A (en) * 1967-01-02 1969-07-29 Dolomite Franchi Spa Refractory lining for arc furnaces,adapted to facilitate dismembering upon completion of a campaign
US4350325A (en) * 1981-03-18 1982-09-21 Labate M D Prefabricated multiple density blast furnace runner
DE3204990C1 (de) * 1982-02-12 1983-04-07 Karrena GmbH, 4000 Düsseldorf Verfahren zur Herstelung einer hochtemperaturbeanspruchbaren Auskleidung
DE8711373U1 (de) * 1987-08-21 1987-10-15 Didier-Werke Ag, 6200 Wiesbaden Halterungs- und Transporteinrichtung für metallummantelte Gasspülsteine
DE3520783C2 (fr) * 1985-06-07 1988-09-22 Micheal Donald Ellwood City Pa. Us Labate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110204A1 (de) * 1981-03-17 1982-10-14 Didier-Werke Ag, 6200 Wiesbaden Vorrichtung zum einfuehren von gasen in metallurgische gefaesse
DE8700094U1 (de) * 1986-07-05 1987-03-19 Burbach & Bender Ohg Esb Schweissbetrieb, 5900 Siegen Gasspülstein für metallurgische Gefäße
US4687184A (en) * 1986-07-14 1987-08-18 Insul Company, Inc. Device for introducing gas into molten metal in a wide annular stream

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458641A (en) * 1967-01-02 1969-07-29 Dolomite Franchi Spa Refractory lining for arc furnaces,adapted to facilitate dismembering upon completion of a campaign
US4350325A (en) * 1981-03-18 1982-09-21 Labate M D Prefabricated multiple density blast furnace runner
DE3204990C1 (de) * 1982-02-12 1983-04-07 Karrena GmbH, 4000 Düsseldorf Verfahren zur Herstelung einer hochtemperaturbeanspruchbaren Auskleidung
DE3520783C2 (fr) * 1985-06-07 1988-09-22 Micheal Donald Ellwood City Pa. Us Labate
DE8711373U1 (de) * 1987-08-21 1987-10-15 Didier-Werke Ag, 6200 Wiesbaden Halterungs- und Transporteinrichtung für metallummantelte Gasspülsteine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RADEX-RUNDSCHAU Nr. 1, 1987, GRAEFELFING,DE Seiten 288 - 302; G.PAUL ET AL.: 'Betriebserfahrungen mit Gasspülsteinen mit gerichteter Porosität bei den badischen Stahlwerken AG' *

Also Published As

Publication number Publication date
DE4026977C1 (fr) 1991-11-14
CA2049684A1 (fr) 1992-02-26
US5437435A (en) 1995-08-01

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