EP0423449B1 - Schliess- und/oder Regelorgan für ein metallurgisches Gefäss - Google Patents

Schliess- und/oder Regelorgan für ein metallurgisches Gefäss Download PDF

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Publication number
EP0423449B1
EP0423449B1 EP90115261A EP90115261A EP0423449B1 EP 0423449 B1 EP0423449 B1 EP 0423449B1 EP 90115261 A EP90115261 A EP 90115261A EP 90115261 A EP90115261 A EP 90115261A EP 0423449 B1 EP0423449 B1 EP 0423449B1
Authority
EP
European Patent Office
Prior art keywords
gas
openings
closure
pipe
outer tube
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.)
Expired - Lifetime
Application number
EP90115261A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0423449A2 (de
EP0423449A3 (en
Inventor
Ullrich Hintzen
Ernst Lührsen
Andreas Schuler
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
Publication of EP0423449A2 publication Critical patent/EP0423449A2/de
Publication of EP0423449A3 publication Critical patent/EP0423449A3/de
Application granted granted Critical
Publication of EP0423449B1 publication Critical patent/EP0423449B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/18—Stopper-rods therefor
    • B22D41/186—Stopper-rods therefor with means for injecting a fluid into the melt

Definitions

  • the invention relates to a closing and / or regulating element for tapping liquid molten metal from a metallurgical vessel with an inner tube which has lateral openings, and with an outer tube which also has lateral openings and with a cylindrical sealing surface on its inner circumference on a cylindrical sealing surface of the outer circumference of the inner tube, one tube being stationary and the other tube movable relative to it, and a gas distribution chamber for inert gas introduced through the outer tube being formed between the two tubes, which gas chamber passes through the gas distribution chamber between the sealing surfaces and through the openings in the tubes can.
  • the outer tube serving as a stator is provided outside the metallurgical vessel with a gas supply line through which the inert gas radially acts there as a gas distribution chamber between the annular gap Outer tube and the inner tube serving as a rotor is supplied.
  • the gas distribution chamber is largely in the cold area of the closing and / or regulating element, so that the inert gas flowing out of the gas distribution chamber contributes to the fact that molten metal in the annular gap, which is also partly in the cold area, between the sealing surfaces of the both pipes slightly frozen.
  • the locking and / or regulating member thus becomes inoperable because the inner tube then does not face the outer tube is more rotatable. The same applies to the penetration of molten metal into the annular gap area, which acts as a gas distribution chamber.
  • the gas distribution in the gas distribution space is uneven. It is also necessary to seal the gas distribution chamber from the outside with suitable sealing elements.
  • the known gas supply arrangement is only suitable for closing and / or regulating elements, the outer tube of which is fixed and the inner tube of which is movable.
  • the object of the invention is to propose a closing and / or regulating element of the type mentioned in the introduction, in which the sealing surfaces and the openings can always be flushed uniformly with inert gas during operation, without impairing the operational safety of the organ.
  • the above object is achieved in a locking and / or regulating member of the type mentioned in the introduction in that the inner tube is provided with a closure above its openings in the outer tube, the space between the closure and the outer tube forming the gas distribution chamber into which a gas supply duct running in the outer tube opens.
  • the inert gas flows through the openings into the melt. This reduces wear on the edges of the openings. In addition, the inert gas avoids caking on the openings.
  • the inert gas entering the melt supports the separation of impurities from the melt and the homogenization of the melt. It is favorable that the gas flows in countercurrent to the melt entering the openings.
  • the closure is gas-permeable. A portion of the inert gas then flows through the closure into the inner tube. The rest of the inert gas enters between the sealing surfaces. As a result of the gas-permeable closure, inert gas flows through both the openings in the inner tube and in the outer tube.
  • gas channels run in the wall of the outer tube, which open into its openings. This means that the openings are not only flushed by the gas flow that has passed between the sealing surfaces, but also by an additional gas flow. Gas channels can run in the wall of the inner tube, which open into its openings. The gas flow through the openings can thereby be increased.
  • An inner tube 2 made of refractory, ceramic material is attached to the bottom 1 of a metallurgical vessel.
  • the inner tube 2 is closed at its upper end by a closure 3.
  • the closure 3 is formed by a gas-permeable insert.
  • the closure 3 can also be formed in one piece with the inner tube 2 and be impermeable to gas.
  • Below the closure 3 2 openings 4 are provided in the wall of the inner tube.
  • An outer tube 5 made of refractory, ceramic material is pushed axially onto the inner tube 2.
  • the outer tube 5 and the inner tube 2 adjoin each other on cylindrical sealing surfaces 6, 7.
  • the outer tube 5 has openings 8. It is axially displaceable relative to the inner tube 2 and / or rotatable about the common longitudinal axis, as a result of which the openings 4, 8 can be adjusted relative to one another to control the melt passage.
  • inert gas such as argon
  • inert gas such as argon
  • melt 11 passes through the openings 8, 4 into the inner tube 2 and flows out of it downwards. In the openings 4, 8, the emerging melt 11 has the gas flowing through it in countercurrent.
  • gas channels 12, 13, 14 can be provided in the wall of the inner tube 2 and / or the wall of the outer tube 5. These are shown in dashed lines in the figure.
  • the gas channels 12 run in the wall of the outer tube 5 from the gas distribution chamber 9 to the openings 8.
  • the gas channels 13 run in the wall of the inner tube 2 from the gas distribution chamber 9 to the openings 4.
  • the gas channels 14 run in the wall of the inner tube 2 from below of the bottom 1 to the openings 4.
  • the outer tube 5 is arranged on the bottom 1 of the metallurgical vessel.
  • the inner tube 2 is inserted into the outer tube 5 from below. It is axially displaceable relative to the outer tube 5 and / or rotatable about the common longitudinal axis.
  • the sealing surfaces 6, 7 and the openings 4, 8 are flushed with inert gas, as is described in the exemplary embodiment according to FIG. 1 above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Closures For Containers (AREA)
EP90115261A 1989-10-17 1990-08-09 Schliess- und/oder Regelorgan für ein metallurgisches Gefäss Expired - Lifetime EP0423449B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3934601 1989-10-17
DE3934601A DE3934601C1 (enrdf_load_stackoverflow) 1989-10-17 1989-10-17

Publications (3)

Publication Number Publication Date
EP0423449A2 EP0423449A2 (de) 1991-04-24
EP0423449A3 EP0423449A3 (en) 1991-12-04
EP0423449B1 true EP0423449B1 (de) 1995-12-27

Family

ID=6391632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115261A Expired - Lifetime EP0423449B1 (de) 1989-10-17 1990-08-09 Schliess- und/oder Regelorgan für ein metallurgisches Gefäss

Country Status (11)

Country Link
US (2) US5058784A (enrdf_load_stackoverflow)
EP (1) EP0423449B1 (enrdf_load_stackoverflow)
JP (1) JPH03133562A (enrdf_load_stackoverflow)
KR (1) KR910007606A (enrdf_load_stackoverflow)
CN (1) CN1051001A (enrdf_load_stackoverflow)
AT (1) ATE132064T1 (enrdf_load_stackoverflow)
BR (1) BR9005151A (enrdf_load_stackoverflow)
CA (1) CA2027767A1 (enrdf_load_stackoverflow)
DE (2) DE3934601C1 (enrdf_load_stackoverflow)
RU (1) RU1831410C (enrdf_load_stackoverflow)
ZA (1) ZA906478B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230813A (en) * 1989-11-28 1993-07-27 Didier-Werke Ag Stator and rotor members for use in apparatus for closing and/or regulating the discharge or tapping of molten metal
DE4442336A1 (de) * 1994-11-29 1996-05-30 Didier Werke Ag Schließ- und/oder Regelorgan für ein metallurgisches Gefäß
KR100388080B1 (ko) * 2000-06-02 2003-06-18 남종현 고지혈증, 간기능 조절효과가 있는 천연차 및 그 제조방법
KR100457710B1 (ko) * 2001-08-27 2004-11-18 주식회사 자생당 오가피를주재로한리큐르주제조방법
KR20020057856A (ko) * 2002-04-17 2002-07-12 김대도 피로회복 음료수의 제조방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651998A (en) * 1970-09-23 1972-03-28 Metallurg Exoproducts Corp Nozzle for a pouring ladle
AU591889B2 (en) * 1985-03-26 1989-12-21 British Steel Plc Improvements in or relating to outlet valves for metal containing vessels
DE3540202C1 (de) * 1985-11-13 1986-11-27 Brown, Boveri & Cie Ag, 6800 Mannheim Zuflußstellglied für eine Kokillenfüllstandsregelung einer Stranggießanlage
AU602179B2 (en) * 1986-12-01 1990-10-04 Arva Ag Discharge and flow regulator for metallurgical vessels and casting process
DE3731600A1 (de) * 1987-09-19 1989-04-06 Didier Werke Ag Drehschiebeverschluss fuer ein metallurigsches gefaess sowie rotor und/oder stator fuer einen solchen drehverschluss
GB8723059D0 (en) * 1987-10-01 1987-11-04 Foseco Int Rotary pouring nozzle
FR2627715B1 (fr) * 1988-02-26 1991-10-11 Vesuvius Sa Busette de coulee pour ouverture assistee, dispositif l'incorporant et procede de mise en oeuvre
DE3826245A1 (de) * 1988-08-02 1990-02-08 Didier Werke Ag Schliess- und/oder regelorgan fuer den abstich fluessiger metallschmelze aus einem metallurgischen gefaess
CH676811A5 (enrdf_load_stackoverflow) * 1988-09-29 1991-03-15 Stopinc Ag
DE3926678C2 (de) * 1989-08-12 1994-09-01 Didier Werke Ag Schließ- und Regelorgan für ein metallurgisches Gefäß

Also Published As

Publication number Publication date
ATE132064T1 (de) 1996-01-15
RU1831410C (ru) 1993-07-30
EP0423449A2 (de) 1991-04-24
BR9005151A (pt) 1991-09-17
US5058784A (en) 1991-10-22
CA2027767A1 (en) 1991-04-18
KR910007606A (ko) 1991-05-30
DE59010007D1 (de) 1996-02-08
JPH03133562A (ja) 1991-06-06
US5106060A (en) 1992-04-21
DE3934601C1 (enrdf_load_stackoverflow) 1990-10-04
CN1051001A (zh) 1991-05-01
ZA906478B (en) 1991-06-26
EP0423449A3 (en) 1991-12-04

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