EP0273855A1 - Brique de rinçage pour récipients métallurgiques - Google Patents

Brique de rinçage pour récipients métallurgiques Download PDF

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Publication number
EP0273855A1
EP0273855A1 EP87710022A EP87710022A EP0273855A1 EP 0273855 A1 EP0273855 A1 EP 0273855A1 EP 87710022 A EP87710022 A EP 87710022A EP 87710022 A EP87710022 A EP 87710022A EP 0273855 A1 EP0273855 A1 EP 0273855A1
Authority
EP
European Patent Office
Prior art keywords
shaped block
gas
sheet metal
shaped
block
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Withdrawn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
EP87710022A
Other languages
German (de)
English (en)
Inventor
Günter Bender
Werner Burbach
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.)
Burbach & Bender oHG Esb Schweissbetrieb
Original Assignee
Burbach & Bender oHG Esb Schweissbetrieb
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 Burbach & Bender oHG Esb Schweissbetrieb filed Critical Burbach & Bender oHG Esb Schweissbetrieb
Publication of EP0273855A1 publication Critical patent/EP0273855A1/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Withdrawn legal-status Critical Current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 gas purging plug for metallurgical vessels, consisting of a refractory molded block, in particular made of gas-impermeable material, a sheet metal cladding partially surrounding the latter, which is formed by a jacket surrounding the lateral outer surface of the molded block and a base welded to it and covering the underside of the molded block, and a gas supply pipe, which is welded to the edge of a central gas passage opening of the sheet metal base, gas passages being provided in the area between the bottom of the molded stone and the sheet metal base, which extend from the central gas passage opening to the edge area of the shaped stone, and in the lateral circumferential area of the shaped stone between the Sheet metal jacket and the lateral outer surface of the shaped block are provided through channels arranged distributed uniformly over the circumference, which extend from the edge of the shaped stone underside to the edge of the shaped stone top.
  • the gas passage channels are formed in that grooves are worked into the lateral outer surface of the molded block.
  • the construction according to the invention has the advantage that it is possible to dispense with the step of incorporating grooves into the shaped block.
  • On the outside of the sheet metal jacket there are weak elevations directed outwards along the strips running between the molded block and the sheet metal jacket, but these are harmless since they can be easily compensated for when the gas purging plug is mortared into the perforated brick.
  • Metal wires can be provided as strips, which can be conveniently attached to the molded block.
  • the metal wires preferably have a round cross section, so that the presence of sufficiently large passage cross sections is ensured in the finished state of the sink.
  • the strips can also be designed as sheet metal strips.
  • the strips are expediently arranged in a uniform distribution around the outer surface of the shaped block.
  • the strips can run along the surface lines of the frustoconical shaped block.
  • the through-channels are shortest in this construction.
  • the molded block has a frustoconical shape in the embodiment shown in the drawing.
  • the refractory material is gas impermeable or only slightly gas permeable.
  • the sheet metal cladding 3 is formed from a sheet metal jacket 7 surrounding the lateral outer surface 6 of the molded block 2 and a round sheet metal base, not shown in the drawing, which is welded to it and covers the underside of the molded block.
  • the sheet metal base is provided with a central gas passage opening, on the peripheral edge of which a gas feed pipe is welded.
  • Metal wires 29 are placed on the lateral outer surface 6 of the shaped block 2 and remain between the shaped block 2 and the sheet metal jacket 7 after assembly of the sheet metal jacket 7.
  • the metal wires 29 run approximately along the surface lines of the outer surface 6 of the shaped block 2.
  • the diameters of the metal wires 29 are of the order of 0.6 to 0.8 mm.
  • sheet metal strips can also be used which have a width of approximately 5 to 10 mm and a thickness of approximately 0.3 to 0.6 mm.
  • the sheet metal jacket 7 covering the molded block 2 is placed over the molded block 2 provided with the metal wires 29 in the warm state during assembly and then shrunk onto the molded block by cooling. Due to the shrinking force, the sheet metal jacket 7 attaches firmly and tightly to the molded block 2, but in addition to the metal wires 29, gas passage channels 30 remain free, which form a defined passage for the purge gas and at the same time are narrow enough to prevent penetration of the molten metal.
  • the construction according to the invention thus creates a gas purging plug with good and precisely definable edge purging properties. Due to the uniform distribution of the metal wires 29 or the metal strips around the circumference of the shaped block 2, the cross sections of the gas passage channels 30 are also distributed uniformly around the circumference, so that optimal gas purging is ensured.
  • the metal wires 29 or sheet metal strips can also be arranged at an angle to the surface lines of the shaped block 2.
  • the purge gas entering the molten metal additionally receives a desired and adjustable swirl.
  • the free ends 31 of the metal wires 29 or sheet metal strips can be cut off.
  • the wire ends or sheet metal strip ends can remain unprocessed, since they melt away very quickly in operation anyway.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP87710022A 1986-12-13 1987-12-08 Brique de rinçage pour récipients métallurgiques Withdrawn EP0273855A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3642623 1986-12-13
DE19863642623 DE3642623A1 (de) 1986-12-13 1986-12-13 Gasspuelstein fuer metallurgische gefaesse

Publications (1)

Publication Number Publication Date
EP0273855A1 true EP0273855A1 (fr) 1988-07-06

Family

ID=6316118

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19880900011 Withdrawn EP0349530A1 (fr) 1986-12-13 1987-12-08 Brique de rin age aux gaz pour recipients metallurgiques
EP87710022A Withdrawn EP0273855A1 (fr) 1986-12-13 1987-12-08 Brique de rinçage pour récipients métallurgiques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19880900011 Withdrawn EP0349530A1 (fr) 1986-12-13 1987-12-08 Brique de rin age aux gaz pour recipients metallurgiques

Country Status (3)

Country Link
EP (2) EP0349530A1 (fr)
DE (1) DE3642623A1 (fr)
WO (1) WO1988004330A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717595A1 (de) * 1987-05-25 1988-12-08 Burbach & Bender Ohg Gasspuelvorrichtung fuer metallurgische gefaesse
DE3852539T3 (de) * 1987-12-15 2005-08-04 Gene Shears Pty. Ltd. Ribozyme.
DE3907383A1 (de) * 1988-12-22 1990-09-20 Cookson Plibrico Gmbh Einblasvorrichtung
DE3907500C1 (en) * 1989-03-08 1990-08-23 Radex-Heraklith Industriebeteiligungs Ag, Wien, At Gas bubble brick with directed porosity and method for its manufacture
US4938461A (en) * 1989-06-02 1990-07-03 Zedmark Refractories Corp. Device for distributing gas into molten metal
DE4024698A1 (de) * 1989-10-04 1991-04-18 Cookson Plibrico Gmbh Einblasvorrichtung
DE19653747A1 (de) * 1996-12-20 1998-06-25 Burbach & Bender Ohg Verfahren und Vorrichtung zur Herstellung eines Gasspülsteins
DE19857639C1 (de) * 1998-12-14 1999-10-07 Dolomitwerke Gmbh Verfahren und Vorrichtung zur Herstellung eines Verbundelements aus einem keramischen Innenteil und einem Blechmantel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166428A (en) * 1967-07-26 1969-10-08 Ct Nationale De Rech S Metallu Method and Device for Treating Liquid Metal in the Ladle
DE2552474B2 (de) * 1975-11-22 1978-06-08 Eiserntaler Spezial-Schweissbetrieb Gmbh, 5904 Eiserfeld-Eisern Gasspülstein, insbesondere für Schmelzwannen, -tiegel u.dgl
US4462576A (en) * 1982-02-24 1984-07-31 Didier-Werke Ag Apparatus for supplying gas through the wall of a metallurgical container
EP0187924A1 (fr) * 1984-11-26 1986-07-23 Cometus AG Procédé et poche pour balayage à l'aide de gaz des bains de métal en fusion
DE3625478A1 (de) * 1985-08-02 1987-02-12 Burbach & Bender Ohg Gasspuelstein fuer metallurgische gefaesse
EP0211209A1 (fr) * 1985-08-02 1987-02-25 Burbach & Bender oHG ESB Schweissbetrieb Procédé pour la fabrication d'une brique poreuse pour l'introduction d'un gaz de balayage, destinée à un récipient métallurgique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166428A (en) * 1967-07-26 1969-10-08 Ct Nationale De Rech S Metallu Method and Device for Treating Liquid Metal in the Ladle
DE2552474B2 (de) * 1975-11-22 1978-06-08 Eiserntaler Spezial-Schweissbetrieb Gmbh, 5904 Eiserfeld-Eisern Gasspülstein, insbesondere für Schmelzwannen, -tiegel u.dgl
US4462576A (en) * 1982-02-24 1984-07-31 Didier-Werke Ag Apparatus for supplying gas through the wall of a metallurgical container
EP0187924A1 (fr) * 1984-11-26 1986-07-23 Cometus AG Procédé et poche pour balayage à l'aide de gaz des bains de métal en fusion
DE3625478A1 (de) * 1985-08-02 1987-02-12 Burbach & Bender Ohg Gasspuelstein fuer metallurgische gefaesse
EP0211209A1 (fr) * 1985-08-02 1987-02-25 Burbach & Bender oHG ESB Schweissbetrieb Procédé pour la fabrication d'une brique poreuse pour l'introduction d'un gaz de balayage, destinée à un récipient métallurgique

Also Published As

Publication number Publication date
EP0349530A1 (fr) 1990-01-10
DE3642623A1 (de) 1988-06-23
WO1988004330A1 (fr) 1988-06-16

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Effective date: 19910703

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Inventor name: BENDER, GUENTER

Inventor name: BURBACH, WERNER