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AT216032B - Device for blowing a metal bath from above - Google Patents

Device for blowing a metal bath from above

Info

Publication number
AT216032B
AT216032B AT933559A AT933559A AT216032B AT 216032 B AT216032 B AT 216032B AT 933559 A AT933559 A AT 933559A AT 933559 A AT933559 A AT 933559A AT 216032 B AT216032 B AT 216032B
Authority
AT
Austria
Prior art keywords
nozzle
deflector
blowing
metal bath
angle
Prior art date
Application number
AT933559A
Other languages
German (de)
Inventor
Paul Ing Metz
Original Assignee
Arbed
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 Arbed filed Critical Arbed
Application granted granted Critical
Publication of AT216032B publication Critical patent/AT216032B/en

Links

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Description

  

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  Vorrichtung zum Beblasen eines Metallbades von oben 
 EMI1.1 
 

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 Teiles 7 des Ablenkkörpers ist grösser als der Winkel ss des divergierenden Teiles 6 der Düse. Der Ablenkkörper 2 ist am Ende einer Stange 9 angeordnet, welche erlaubt, ihn in das Innere der Lanze zurückzuziehen. 



  Wenn man einen   dünnen   Strahl wünscht, bringt man den Ablenkkörper in die mit der Bezugsziffer 1 bezeichnete Stellung oberhalb des konvergierenden Teiles 4 der Düse. Wenn. man einen sich verbreiternden Strahl wünscht, senkt man den Ablenkkörper innerhalb der Düse in die mit dem Bezugszeichen 2 bezeichnete Stellung am Ausgang der Düse. Geringfügige Änderungen in der Stellung 2 des Ablenkkörpers am Ausgang der Düse ermöglichen leicht eine Änderung des Grades der Strahlausbreitung. 



    PATENTANSPRÜCHE :    
1. Vorrichtung zum Beblasen eines Metallbades mit einem oxydierenden Gas, welches gegebenenfalls feste, pulverförmige oder körnige Stoffe in Suspension enthält, mittels einer Lanze von oben, dadurch gekennzeichnet, dass die innere Leitung der Lanze axial einen Strahlablenkkörper enthält, dessen maximaler Durchmesser kleiner ist als der Innendurchmesser der Leitung, und der in der Strömungsrichtung des Blasgases einen divergierend ausgebildeten Teil aufweist, welcher Ablenkkörper an die Mündung der Düse versetzt wird, wenn ein sich ausbreitender Strahl gewünscht wird, und welcher von der Düsenmündung entfernt wird, wenn ein   dünner   (geschlossener) Strahl gewünscht wird.



   <Desc / Clms Page number 1>
 



  Device for blowing a metal bath from above
 EMI1.1
 

 <Desc / Clms Page number 2>

 Part 7 of the deflector body is greater than the angle ss of the diverging part 6 of the nozzle. The deflector 2 is arranged at the end of a rod 9 which allows it to be withdrawn into the interior of the lance.



  If a thin jet is desired, the deflector is brought into the position indicated by the reference number 1 above the converging part 4 of the nozzle. If. if a widening jet is desired, the deflector is lowered inside the nozzle into the position indicated by the reference number 2 at the outlet of the nozzle. Slight changes in position 2 of the deflector at the exit of the nozzle allow the degree of jet spread to be easily changed.



    PATENT CLAIMS:
1. Device for blowing a metal bath with an oxidizing gas, which optionally contains solid, powdery or granular substances in suspension, by means of a lance from above, characterized in that the inner line of the lance axially contains a beam deflector whose maximum diameter is smaller than the inner diameter of the conduit, and which has a diverging part in the flow direction of the blowing gas, which deflector is moved to the mouth of the nozzle when a spreading jet is desired, and which is removed from the nozzle mouth when a thin (closed) Beam is desired.

Claims (1)

2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Strahlablenkkörper aus feuerfestem Stoff besteht. 2. Device according to claim 1, characterized in that the beam deflector consists of refractory material. 3. Vorrichtung nach Anspruch 1 oder 2, mit einer am Lanzenende einen konvergierend-divergierenden Abschnitt aufweisenden Düse, dadurch gekennzeichnet, dass der Winkel des divergierenden Teiles des Ablenkkörpers gleich oder grösser ist als der Winkel des divergierenden Teiles der Düse. 3. Apparatus according to claim 1 or 2, with a nozzle having a converging-diverging section at the lance end, characterized in that the angle of the diverging part of the deflecting body is equal to or greater than the angle of the diverging part of the nozzle. 4. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Strahlablenkkörper eine in Strömungsrichtung des Blasgases divergierend-konvergierende, aerodynamische Form aufweist. 4. Device according to one or more of the preceding claims, characterized in that the jet deflector has an aerodynamic shape which diverges and converges in the flow direction of the blow gas. 5. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Ablenkkörper am Ende einer Stange befestigt ist, welche innerhalb der Düse und in dieser axial beweglich ist und erlaubt, den Ablenkkörper in das Innere der Düse zurückzuziehen. 5. Device according to one or more of the preceding claims, characterized in that the deflector body is attached to the end of a rod which is axially movable within the nozzle and in this and allows the deflector body to be withdrawn into the interior of the nozzle.
AT933559A 1959-02-20 1959-12-23 Device for blowing a metal bath from above AT216032B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE216032X 1959-02-20

Publications (1)

Publication Number Publication Date
AT216032B true AT216032B (en) 1961-07-10

Family

ID=3866022

Family Applications (1)

Application Number Title Priority Date Filing Date
AT933559A AT216032B (en) 1959-02-20 1959-12-23 Device for blowing a metal bath from above

Country Status (1)

Country Link
AT (1) AT216032B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322348A (en) * 1964-01-09 1967-05-30 Hoerder Huettenunion Ag Apparatus for the treatment of metal melts with gases
US4022447A (en) * 1976-02-23 1977-05-10 United States Steel Corporation Supersonic nozzle for submerged tuyere oxygen steelmaking process
EP0235621A2 (en) * 1986-02-25 1987-09-09 Arbed S.A. Lance for blowing oxygen
US4993691A (en) * 1988-09-28 1991-02-19 Arbed S.A. Oxygen injection lance
WO2004018714A1 (en) * 2002-08-21 2004-03-04 Voest-Alpine Industrieanlagenbau Gmbh & Co Methods and device for decarbonising a steel melt

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322348A (en) * 1964-01-09 1967-05-30 Hoerder Huettenunion Ag Apparatus for the treatment of metal melts with gases
US4022447A (en) * 1976-02-23 1977-05-10 United States Steel Corporation Supersonic nozzle for submerged tuyere oxygen steelmaking process
EP0235621A2 (en) * 1986-02-25 1987-09-09 Arbed S.A. Lance for blowing oxygen
EP0235621A3 (en) * 1986-02-25 1989-03-15 Arbed S.A. Lance for blowing oxygen
US4993691A (en) * 1988-09-28 1991-02-19 Arbed S.A. Oxygen injection lance
WO2004018714A1 (en) * 2002-08-21 2004-03-04 Voest-Alpine Industrieanlagenbau Gmbh & Co Methods and device for decarbonising a steel melt

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