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DE29705901U1 - Flush lance cooled with argon - Google Patents

Flush lance cooled with argon

Info

Publication number
DE29705901U1
DE29705901U1 DE29705901U DE29705901U DE29705901U1 DE 29705901 U1 DE29705901 U1 DE 29705901U1 DE 29705901 U DE29705901 U DE 29705901U DE 29705901 U DE29705901 U DE 29705901U DE 29705901 U1 DE29705901 U1 DE 29705901U1
Authority
DE
Germany
Prior art keywords
lance
argon
carrier
flushing
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
DE29705901U
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 DE29705901U priority Critical patent/DE29705901U1/en
Publication of DE29705901U1 publication Critical patent/DE29705901U1/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)
  • Sampling And Sample Adjustment (AREA)

Description

Beschreibung
Argon-SpüllanzeDescription
Argon 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 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 zu erreichen, schlage ich Neuerungsgemäß folgendes vor:In order to achieve a longer service life of the entire flushing lance, I suggest the following:

Das Schutzrohr an dem die angeschweißten Anker,die den Feuerfestbeton halten,wird mit einem gewollten Hohlraum der zwischen dem Schutzrohr und dem Lanzenträger durch unterschiedliche 0 entsteht, bis zu einer bestimmten Höhe über den Lanzenträger geschoben (wie auf der Skizze dargestellt) festgeschweißt.The protective tube to which the welded anchors that hold the refractory concrete are welded is pushed over the lance carrier to a certain height (as shown in the sketch) with a deliberate cavity that is created between the protective tube and the lance carrier by varying 0.

Am obersten Rohrteil der Spüllanze ist eine Verschraubung angeschweißt, an der ein flexibler Metallschlauch geschraubt ist,um das zur Spülung benötigte Argongas durch den Spüllanzenhohlraum in den flüssigen Stahl zu.leiten.A screw connection is welded to the uppermost pipe section of the flushing lance, to which a flexible metal hose is screwed in order to guide the argon gas required for flushing through the flushing lance cavity into the liquid steel.

Am unteren Ende der Spüllanze sind einige Distanzhalter zwischen Rohr und Lanzenträger eingeschweißt.At the lower end of the flushing lance, some spacers are welded between the pipe and the lance holder.

Die neue Spüllanze hat einen Stahlstab als Lanzenträger(die herkömmlichen Spüllanzen haben ein dickwandiges Rohr.)das mit einem dünnwandigem Rohr umgeben ist und dazwischen einen gewilten Hohlraum hat,durch das das schnell strömende Argongas den Lanzenträger-Stab, sowie durch das dünnwandige Rohr auch die Feuerfestbeton-Maße kühlt.The new flushing lance has a steel rod as a lance carrier (the conventional flushing lances have a thick-walled tube) which is surrounded by a thin-walled tube and has a hollow space in between through which the rapidly flowing argon gas cools the lance carrier rod, as well as the refractory concrete masses through the thin-walled tube.

Dadurch ist eine längere Standzeit der Spüllanze gegeben.This ensures a longer service life of the flushing lance.

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

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

Claims (3)

AnsprücheExpectations 1. Argonspüllanze(1)dadurch gekennzeichnet/daß der Lanzenträger (l)aus einem Volleisenstab (l)besteht.1. Argon flushing lance (1) characterized in that the lance carrier (l) consists of a solid iron rod (l). 2. Argonspüllanze (l)nach Anspruch 1 dadurch gekennzeichnet/daß der Lanzenträger {l)von einem im 0 größerem Rohr (2)das im obersten Teil eine Verschraubung (4-)durch die das schnell strömende Argongas durch den gewollten Hohlraum (3)denLanzenträger (l)sowie durch die Rohrwand (2.)auch die Feuerfestbeton-Maßeffcühlt- 2. Argon flushing lance (l) according to claim 1, characterized in that the lance carrier (l) is supported by a larger tube (2) which has a screw connection (4) in the uppermost part through which the rapidly flowing argon gas flows through the desired cavity (3), the lance carrier (l) and through the tube wall (2) and also the refractory concrete mass effect. 3. Argonspüllanze (l)nach Anspruch 1 und 2 dadurch gekennzeich net,daß am unteren Ende zwischen dem Lanzenträger (l)und dem Rohr (2)Distanzbleche (5)eingeschweißt sind.3. Argon flushing lance (l) according to claim 1 and 2, characterized in that spacer plates (5) are welded at the lower end between the lance carrier (l) and the tube (2). Dennis Funke
Murmannstr.Nr. 8Dennis Funke
Murmannstr.No. 8 47627 Kevelaer/Kervenheim
Telef. 02825/138947627 Kevelaer/Kervenheim
Phone: 02825/1389
DE29705901U 1997-04-03 1997-04-03 Flush lance cooled with argon Expired - Lifetime DE29705901U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29705901U DE29705901U1 (en) 1997-04-03 1997-04-03 Flush lance cooled with argon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29705901U DE29705901U1 (en) 1997-04-03 1997-04-03 Flush lance cooled with argon

Publications (1)

Publication Number Publication Date
DE29705901U1 true DE29705901U1 (en) 1997-05-28

Family

ID=8038387

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29705901U Expired - Lifetime DE29705901U1 (en) 1997-04-03 1997-04-03 Flush lance cooled with argon

Country Status (1)

Country Link
DE (1) DE29705901U1 (en)

Cited By (2)

* 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
WO2016166189A1 (en) 2015-04-16 2016-10-20 Vesuvius Crucible Company Lance for top injection in metallurgical vessels and process for manufacturing same

Cited By (2)

* 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
WO2016166189A1 (en) 2015-04-16 2016-10-20 Vesuvius Crucible Company Lance for top injection in metallurgical vessels and process for manufacturing same

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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