WO1988004330A1 - Brique de rinçage aux gaz pour recipients metallurgiques - Google Patents

Brique de rinçage aux gaz pour recipients metallurgiques Download PDF

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Publication number
WO1988004330A1
WO1988004330A1 PCT/DE1987/000580 DE8700580W WO8804330A1 WO 1988004330 A1 WO1988004330 A1 WO 1988004330A1 DE 8700580 W DE8700580 W DE 8700580W WO 8804330 A1 WO8804330 A1 WO 8804330A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
block
strips
shaped block
sheet metal
Prior art date
Application number
PCT/DE1987/000580
Other languages
German (de)
English (en)
Inventor
Günter Bender
Werner Burbach
Original Assignee
Burbach & Bender Ohg
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 filed Critical Burbach & Bender Ohg
Publication of WO1988004330A1 publication Critical patent/WO1988004330A1/fr

Links

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 casing partially surrounding it, which by a jacket surrounding the lateral outer surface of the molded block and a welded to it Bottom of the shaped stone covering is formed, 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 shaped stone underside and the sheet metal floor, 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 stone, through channels arranged uniformly distributed over the circumference are provided, which extend from the edge of the shaped stone underside to the edge of the shaped stone upper extend to the rear.
  • the gas passage channels are formed by working grooves into the lateral outer surface of the molded block.
  • the invention is based, to improve and facilitate the formation of the lateral gas passages while maintaining the advantages of the known gas purging stei ns. According to the invention, this object is achieved in that rod-shaped strips are placed on the lateral outer surface of the shaped block and that the sheet metal jacket covering the lateral outer surface of the sink block is shrunk onto the shaped block, overlapping the strips, with gas passage channels remaining free to the side of the strips .
  • the construction according to the invention has the advantage that the work step of incorporating grooves into the shaped block can be dispensed with.
  • 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 in the finished state of the sink, the presence of sufficiently large passage cross sections is ensured.
  • 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 stone.
  • the strips can run along the surface lines of the truncated cone shaped stone. With this construction, the through channels are the shortest.
  • Fig. 2 shows a detail from a section along the line II-II of Fig. 1 and
  • FIG. 3 shows an enlarged view of a detail from FIG. 2.
  • the gas purging plug 1 consists of a molded block 2 made of refractory material and a sheet metal fertilizer 3.
  • the shaped stone has a frustoconical shape.
  • 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 after the assembly of the sheet metal jacket 7 between the shaped block 2 and the sheet metal jacket 7. In the exemplary embodiment shown in FIG. 1, 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 29 gas passage channels 30 remain free besides the metal 1 wires, which form a defined passage for the purge gas and at the same time are narrow enough to penetrate the molten metal prevent.
  • 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 optimum gas purging is guaranteed.
  • 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 flushing gas entering the metal melt 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 on the exit side of the shaped block 2, since they melt away very quickly during operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Une brique de rinçage aux gaz (1) pour récipients métallurgiques comprend par exemple une brique moulée (2) imperméable au gaz entourée partiellement d'une tôle métallique (3) de revêtement formée d'une enveloppe (7) qui entoure la surface latérale extérieure de la brique moulée et d'un fond soudé à l'enveloppe qui recouvre le côté inférieur de la brique moulée. Une conduite d'amenée de gaz est soudée au bord d'une ouverture centrale du fond de la tôle métallique. Afin d'assurer un passage de gaz approprié et uniforme à travers la zone marginale située entre la brique moulée et la tôle métallique de recouvrement dans des dispositifs de rinçage dit marginal, des passages de gaz qui s'étendent jusqu'à la zone marginale de la brique moulée sont agencés dans la zone comprise entre le côté inférieur de la brique moulée et le fond de la tôle métallique. Afin de former des conduits appropriés (30), l'enveloppe métallique (7) est posée à chaud sur la brique moulée (2), recouvrant les nervures (29), les passages de gaz (30) restant ouverts à côté des nervures (29).
PCT/DE1987/000580 1986-12-13 1987-12-08 Brique de rinçage aux gaz pour recipients metallurgiques WO1988004330A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863642623 DE3642623A1 (de) 1986-12-13 1986-12-13 Gasspuelstein fuer metallurgische gefaesse
DEP3642623.7 1986-12-13

Publications (1)

Publication Number Publication Date
WO1988004330A1 true WO1988004330A1 (fr) 1988-06-16

Family

ID=6316118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1987/000580 WO1988004330A1 (fr) 1986-12-13 1987-12-08 Brique de rinçage aux gaz pour recipients metallurgiques

Country Status (3)

Country Link
EP (2) EP0273855A1 (fr)
DE (1) DE3642623A1 (fr)
WO (1) WO1988004330A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989005852A1 (fr) * 1987-12-15 1989-06-29 Macphillamy Cummins & Gibson Ribozymes
US4938461A (en) * 1989-06-02 1990-07-03 Zedmark Refractories Corp. Device for distributing gas into molten metal

Families Citing this family (6)

* 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
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
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989005852A1 (fr) * 1987-12-15 1989-06-29 Macphillamy Cummins & Gibson Ribozymes
US4938461A (en) * 1989-06-02 1990-07-03 Zedmark Refractories Corp. Device for distributing gas into molten metal

Also Published As

Publication number Publication date
DE3642623A1 (de) 1988-06-23
EP0273855A1 (fr) 1988-07-06
EP0349530A1 (fr) 1990-01-10

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