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DE29705902U1 - Flush lance cooled with compressed air - Google Patents

Flush lance cooled with compressed air

Info

Publication number
DE29705902U1
DE29705902U1 DE29705902U DE29705902U DE29705902U1 DE 29705902 U1 DE29705902 U1 DE 29705902U1 DE 29705902 U DE29705902 U DE 29705902U DE 29705902 U DE29705902 U DE 29705902U DE 29705902 U1 DE29705902 U1 DE 29705902U1
Authority
DE
Germany
Prior art keywords
lance
argon flushing
flushing lance
argon
protective 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
DE29705902U
Other languages
German (de)
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
Priority to DE29705902U priority Critical patent/DE29705902U1/en
Publication of DE29705902U1 publication Critical patent/DE29705902U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/4613—Refractory coated lances; Immersion lances
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C2005/4626—Means for cooling, e.g. by gases, fluids or liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Description

BeschreibungDescription

Argon-SpüllanzeArgon flushing lance

Für die Stahlherstellung in den Oxygenstahlwerken,werden Spüllanzen eingesetzt/durch denen Argon in den flüssigen Stahl,der sich in der Gießpfanne befindet,geblasen,um die unerwünschten Begleiter wie Phosvor und Schwefel zu bekämpfen.For steel production in oxygen steelworks, flushing lances are used through which argon is blown into the liquid steel in the ladle in order to combat undesirable contaminants such as phosphorus and sulphur.

Um eine längere Standzeit der kompletten Spüllanze,durch zusätzliche Kühlung zu erreichen,schlage ich Neuerungsgemäß folgendes vor :In order to achieve a longer service life of the entire flushing lance through additional cooling, I propose the following:

über das Spüllanzenrohr/durch das das Argongas bis in den flüssigen Stahl strömt,wird ein zweites dünnwandiges Schutzrohr geschoben und im oberen Bereich an das Spüllanzenrohr angeschweißt. Durch die unterschiedlichen 0 wird ein gewoliter Hohlraum zwischen Spüllanzen und Schutzrohr erreicht.A second thin-walled protective tube is pushed over the flushing lance tube/through which the argon gas flows into the liquid steel and welded to the flushing lance tube in the upper area. The different 0 creates a solid cavity between the flushing lance and the protective tube.

Dieser Hohlraum wird über die gesamte Lanzenlänge durch zwei gegenüber stehend angeschweißte Flacheisen zu einem Zweikammersystem gemacht.This cavity is made into a two-chamber system over the entire length of the lance by two flat irons welded opposite each other.

In eine der zwei Kammern wird im obersten Bereich eine Verschraubung eingeschweißt,um Druckluft aus dem Netz,die von oben durch die eine Kammer bis zum unteren Lanzenteil strömt,dann durch die zweite Kammer nach oben zum freien Ausgangsstutzen ins Freie führt.A screw connection is welded into the uppermost area of one of the two chambers to direct compressed air from the network, which flows from above through one chamber to the lower part of the lance, then through the second chamber upwards to the free outlet nozzle into the open air.

Durch diesen Vorgang,wird nach aussen hin durch die Schutzrohrwand die Feuerfestbeton-Maße,sowie auch das innen liegende Lan— zenrohr gekühlt.Through this process, the refractory concrete masses as well as the lance tube inside are cooled through the protective tube wall.

Durch diese Neuerung,ist eine längere Standzeit gegeben.This innovation ensures a longer service life.

Dennis Funke
Murmannstr. Nr. 8Dennis Funke
Murmannstr. No. 8

47627 Kevelaer/Kervenheim
Telef. 02825/138947627 Kevelaer/Kervenheim
Phone: 02825/1389

Claims (4)

AnsprücheExpectations 1. Argonspüllanze (l)dadurch gekennzeichnet/daß das Argongas direkt durch das Lanzenrohr (l)in den flüssigen Stahl geleitet wird-1. Argon flushing lance (l) characterized by the fact that the argon gas is fed directly through the lance tube (l) into the liquid steel- 2. Argonspüllanze (l)nach Anspruch 1 dadurch gekennzeichnet/daß ein zweites Schutzrohr (2)über die Argonspüllanze (l)geschoben ist/und am oberen Teil der Argonspüllanze {Dangeschweißt ist.2. Argon flushing lance (l) according to claim 1, characterized in that a second protective tube (2) is pushed over the argon flushing lance (l) and is welded to the upper part of the argon flushing lance (D). 3. Argonspüllanze (1) nach Anspruch 1 und 2 dadurch gekennzeichnet/daß zwischen den Argonspüllanzen {l)und dem Schutzrohr (2 ein über ganze Argonspüllanze {l)ein gewellter Hohlraum (3) entsteht/der durch zwei gegenüber angebrachte Distanzhalter (5)zu einem zwei Kammersystem wird.3. Argon flushing lance (1) according to claim 1 and 2, characterized in that between the argon flushing lances (l) and the protective tube (2) a corrugated cavity (3) is created over the entire argon flushing lance (l) which becomes a two-chamber system by two spacers (5) mounted opposite one another. 4. Argonspüllanze (1) nach Anspruch 1 bis 3 dadurch gekennzeichnet/daß im obersten Bereich des Schutzrohres(2) eine Verschraubung (4)eingeschweißt ist/.durch die vom Netz gespeißte Druckluft erst in die eine Kammer bis zum unteren Teil der Argonspüllanze (l)geleitet wird/um dann durch die zweite Kammer nach oben durch den Stutzen {8)austritt. Dadurch wird das innere Argonspüllanzenrhr (1.) sowie das Feuerfestbeton-Materialfrjdurch. die Wandung des Schutzruhres gekühlt. 4. Argon flushing lance (1) according to claims 1 to 3, characterized in that a screw connection (4) is welded into the uppermost area of the protective tube (2) and the compressed air fed from the network is first fed into one chamber to the lower part of the argon flushing lance (1) and then exits upwards through the second chamber through the nozzle (8). This cools the inner argon flushing lance tube (1) and the refractory concrete material through the wall of the protective tube. Dennis Funke
Murmannstr. Nr. 8Dennis Funke
Murmannstr. No. 8 47627 Kevelaer/Kervenheim
Telef- 02825/138947627 Kevelaer/Kervenheim
Phone- 02825/1389
DE29705902U 1997-04-03 1997-04-03 Flush lance cooled with compressed air Expired - Lifetime DE29705902U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29705902U DE29705902U1 (en) 1997-04-03 1997-04-03 Flush lance cooled with compressed air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29705902U DE29705902U1 (en) 1997-04-03 1997-04-03 Flush lance cooled with compressed air

Publications (1)

Publication Number Publication Date
DE29705902U1 true DE29705902U1 (en) 1997-05-28

Family

ID=8038388

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29705902U Expired - Lifetime DE29705902U1 (en) 1997-04-03 1997-04-03 Flush lance cooled with compressed air

Country Status (1)

Country Link
DE (1) DE29705902U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712937A4 (en) * 2011-05-20 2014-11-05 Magnesita Refratários S A Cooled lance for injecting into a metallurgical vessel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712937A4 (en) * 2011-05-20 2014-11-05 Magnesita Refratários S A Cooled lance for injecting into a metallurgical vessel

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19970710

R156 Lapse of ip right after 3 years

Effective date: 20010201