EP0230217A2 - Brique de barbotage à gaz pour un récipient métallurgique - Google Patents

Brique de barbotage à gaz pour un récipient métallurgique Download PDF

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Publication number
EP0230217A2
EP0230217A2 EP86890353A EP86890353A EP0230217A2 EP 0230217 A2 EP0230217 A2 EP 0230217A2 EP 86890353 A EP86890353 A EP 86890353A EP 86890353 A EP86890353 A EP 86890353A EP 0230217 A2 EP0230217 A2 EP 0230217A2
Authority
EP
European Patent Office
Prior art keywords
stone body
flow channels
flushing
distribution pipe
gas
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Withdrawn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
EP86890353A
Other languages
German (de)
English (en)
Other versions
EP0230217A3 (fr
Inventor
Albert Dipl.-Ing. Tosin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0230217A2 publication Critical patent/EP0230217A2/fr
Publication of EP0230217A3 publication Critical patent/EP0230217A3/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Withdrawn legal-status Critical Current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
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases

Definitions

  • the invention relates to a sink for metallurgical vessels, consisting of a refractory stone body with directional flow channels which are connected to at least one distribution pipe via connecting lines.
  • inert gas In order to ensure bath movement in metallurgical vessels, it is known to blow inert gas into the metal melts through purging stones.
  • These sink stones are formed either by an open-pore stone body made of a refractory material or by a refractory stone body with directional flow channels. Flushing stones with directed flow channels have the advantage of higher erosion and infiltration resistance compared to the open-pored stone bodies.
  • the inert gas can be blown into the molten metal in a desired distribution via the directional flow channels.
  • the invention is therefore based on the object to avoid these deficiencies and to improve a sink of the type described in such a way that, on the one hand, an undesired joint flushing is excluded and, on the other hand, a load on the sink with the wind pressure can be avoided.
  • the invention solves this problem in that the connecting lines for the individual flow channels are embedded in the stone body with the associated section of the distribution pipe.
  • the distribution pipe can advantageously be designed as a ring which is coaxial with the stone body, so as to be able to communicate with it Pipe ring connected connecting lines to supply the flow channels arranged around the central opening of the stone body with purge gas. It is essential in any case that the distribution pipe, which may have any shape in itself, is embedded in the stone body, so that a connection corresponding to the connection of a wind box between the stone body and the distribution pipe can be omitted.
  • FIG. 1 shows a flushing plug according to the invention for a metallurgical vessel in an axial section
  • FIG. 2 shows this flushing plug in a section along the line II-II of FIG. 1
  • FIG. 3 shows a representation of a construction variant corresponding to FIG. 2.
  • the illustrated sink 1 has a refractory stone body 2 in which directional flow channels 3 are provided. These flow channels 3 are supplied with inert purge gas via a distribution pipe 4 arranged coaxially to the stone body 2, the distribution pipe 4 being connected to the flow channels 3 via corresponding connecting lines 5.
  • the distribution pipe 4 enclosed by the stone body 2 protrudes through the bottom of the flushing stone and is connected to a feed line (not shown) for the flushing gas.
  • a base plate 6 can be connected to the distribution pipe 4, which results in additional support for the stone body 2.
  • the connecting lines 5 coaxially merge into the flow channels 3 and have a clear width that corresponds to the diameter of the flow channels 3, not only can the purging gas be blown seamlessly into the metal bath along the flow paths provided for this purpose, but also the stone body 2 largely remain free of the purging pressure , so that higher purging pressures can be used compared to conventional purging stones.
  • the sink 1 forms part of an outlet line of a metallurgical vessel, the stone body 2 having a central opening 7, in which the flow channels 3 open tangentially.
  • the distribution pipe 4 is designed to uniformly supply these flow channels 3 distributed around the central opening 7 as a pipe ring 8, to which the connecting lines 5 are attached in a straight extension of the flow channels 3.
  • the pipe ring 8 is supplied with a corresponding purge gas via a feed line 9, which in the exemplary embodiment runs radially to the stone body 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP86890353A 1985-12-23 1986-12-23 Brique de barbotage à gaz pour un récipient métallurgique Withdrawn EP0230217A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3726/86 1985-12-23
AT372685A AT384623B (de) 1985-12-23 1985-12-23 Spuelstein fuer metallurgische gefaesse

Publications (2)

Publication Number Publication Date
EP0230217A2 true EP0230217A2 (fr) 1987-07-29
EP0230217A3 EP0230217A3 (fr) 1988-03-30

Family

ID=3554550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890353A Withdrawn EP0230217A3 (fr) 1985-12-23 1986-12-23 Brique de barbotage à gaz pour un récipient métallurgique

Country Status (2)

Country Link
EP (1) EP0230217A3 (fr)
AT (1) AT384623B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218364A (en) * 1988-05-13 1989-11-15 Insul Co Inc Device for introducing stirring gas into molten metal
US4925166A (en) * 1987-10-14 1990-05-15 Pa-Ha-Ge Hutten Und Giessereibedarf Gmbh & Co. Kg Gas flushing brick for metallurgical vessels
FR2645543A1 (fr) * 1989-04-11 1990-10-12 Kadex Heraklith Industriebetei Brique de lavage au gaz calcinee et utilisation de celle-ci
DE4219615A1 (de) * 1992-06-16 1993-12-23 Burbach & Bender Ohg Gasspülstein für metallurgische Gefäße
GB2276437A (en) * 1991-06-18 1994-09-28 Insul Co Inc A device for insufflating gas into molten metal
WO2011015028A1 (fr) * 2009-08-03 2011-02-10 濮阳濮耐高温材料（集团）股份有限公司 Brique poreuse à extraction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT265341B (de) * 1962-08-07 1968-10-10 Air Liquide Verfahren und Vorrichtung zum Einblasen von strömungsfähigen Medien in eine Schmelze und deren Verwendung als Konverterboden
GB1448156A (en) * 1974-03-27 1976-09-02 Electricity Council Injectors for injecting gas into molten metal
GB1594631A (en) * 1978-04-06 1981-08-05 Electricity Council Injectors for injecting gas into molten metal
JPS5974211A (ja) * 1982-10-21 1984-04-26 Nippon Steel Corp 転炉底吹羽口
EP0148336A1 (fr) * 1983-11-17 1985-07-17 Radex Deutschland Aktiengesellschaft für feuerfeste Erzeugnisse Brique pour lavage au gaz pour récipients métallurgiques

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455008A1 (fr) * 1979-04-25 1980-11-21 Siderurgie Fse Inst Rech Piece refractaire a permeabilite selective et orientee pour l'insufflation d'un fluide
GB2102926B (en) * 1981-06-03 1985-05-15 Nippon Kokan Kk Gas blowing nozzle, and production and usage thereof
AU541441B2 (en) * 1981-07-15 1985-01-10 Nippon Steel Corporation Bottom blowing nozzle embedded in a refractory block
AU567023B2 (en) * 1982-03-29 1987-11-05 Nippon Kokan Kabushiki Kaisha Bottom blown gas blowing nozzle for maltev metal refining furnace and steel refining method using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT265341B (de) * 1962-08-07 1968-10-10 Air Liquide Verfahren und Vorrichtung zum Einblasen von strömungsfähigen Medien in eine Schmelze und deren Verwendung als Konverterboden
GB1448156A (en) * 1974-03-27 1976-09-02 Electricity Council Injectors for injecting gas into molten metal
GB1594631A (en) * 1978-04-06 1981-08-05 Electricity Council Injectors for injecting gas into molten metal
JPS5974211A (ja) * 1982-10-21 1984-04-26 Nippon Steel Corp 転炉底吹羽口
EP0148336A1 (fr) * 1983-11-17 1985-07-17 Radex Deutschland Aktiengesellschaft für feuerfeste Erzeugnisse Brique pour lavage au gaz pour récipients métallurgiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 178 (C-238)[1615], 16. August 1984; & JP-A-59 074 211 (SHIN NIPPON SEITETSU K.K.) 26-04-1984 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925166A (en) * 1987-10-14 1990-05-15 Pa-Ha-Ge Hutten Und Giessereibedarf Gmbh & Co. Kg Gas flushing brick for metallurgical vessels
GB2218364A (en) * 1988-05-13 1989-11-15 Insul Co Inc Device for introducing stirring gas into molten metal
DE3904543A1 (de) * 1988-05-13 1989-11-23 Insul Co Vorrichtung zum einfuehren von ruehrgas in geschmolzenes metall in dosierter menge
GB2218364B (en) * 1988-05-13 1992-06-03 Insul Co Inc Device for introducing stirring gas into molten metal
FR2645543A1 (fr) * 1989-04-11 1990-10-12 Kadex Heraklith Industriebetei Brique de lavage au gaz calcinee et utilisation de celle-ci
GB2276437A (en) * 1991-06-18 1994-09-28 Insul Co Inc A device for insufflating gas into molten metal
DE4219615A1 (de) * 1992-06-16 1993-12-23 Burbach & Bender Ohg Gasspülstein für metallurgische Gefäße
WO2011015028A1 (fr) * 2009-08-03 2011-02-10 濮阳濮耐高温材料（集团）股份有限公司 Brique poreuse à extraction

Also Published As

Publication number Publication date
ATA372685A (de) 1987-05-15
EP0230217A3 (fr) 1988-03-30
AT384623B (de) 1987-12-10

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