DE3122178A1 - Detachable and replaceable heat and splash protection for oxygen lances for steel production - Google Patents
Detachable and replaceable heat and splash protection for oxygen lances for steel productionInfo
- Publication number
- DE3122178A1 DE3122178A1 DE19813122178 DE3122178A DE3122178A1 DE 3122178 A1 DE3122178 A1 DE 3122178A1 DE 19813122178 DE19813122178 DE 19813122178 DE 3122178 A DE3122178 A DE 3122178A DE 3122178 A1 DE3122178 A1 DE 3122178A1
- Authority
- DE
- Germany
- Prior art keywords
- heat
- lance
- oxygen
- splash protection
- steel production
- 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- Withdrawn
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 11
- 239000001301 oxygen Substances 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 8
- 239000010959 steel Substances 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 4
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 239000003779 heat-resistant material Substances 0.000 claims abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 239000002241 glass-ceramic Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001449342 Chlorocrambe hastata Species 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
Bezeichnung: Ablös- und austauschbarer Hitze- undDesignation: Removable and replaceable heat and
Spritzschutz für Sauerstoffblaslanzen zur Stahlerzeugung Die Erfindung bezieht sich auf einen ablös- und austauschbaren Hitze- und Spritzschutz für Sauerstoffblaslanzen, die bei der Stahlerzeugung im Konverter verwandt werden. Splash protection for oxygen lances for steel production The invention refers to a removable and exchangeable heat and splash protection for oxygen lances, which are used in the steelmaking process in the converter.
s Sauerstoffblaslanzen sind Stahlrohre, durch die bei der Stahlerzeugung Sauerstoff zum Frischen in den Konverter geblasen wird, Die Spitze der Lanze, die in den Konverter ragt, ist meist aus Kupfer und hat eine oder mehrere Ausblasdüsen. Die gesamte Lanze ist durch einen inneren, vom Sauerstoff getrennten Kreislauf wassergekühlt. Die Spitze der Lanze ist durch Hitze und aufspritzende Schmelze oder Schlacke besonders hoch beansprucht und unterliegt daher einem hohen Verschleiß.s Oxygen lances are steel pipes through which steelmaking is carried out Oxygen for freshening is blown into the converter, the tip of the lance that protrudes into the converter, is usually made of copper and has one or more blow-off nozzles. The entire lance is water-cooled by an internal circuit that is separated from the oxygen. The tip of the lance is special because of the heat and splashing melt or slag highly stressed and therefore subject to high wear.
Es sind bereits Hitze- und Spritzschutzschichten für Sauerstoffblaslanzen bekannt, die fest mit dem Kupfer- und Stahlteil der Blaslanze verbunden sind, zum Beispiel durch aufschweißen, aufspritzen oder Nach mindestens einem Blasvorgang oder nach Beschädigung wird die Schutzkappe durch eine neue ausgetauscht. Durch den Wechsel der Schutzkappe behält die Blaslanze ihr berechnetes Blasverhalten bei. Dies ist bei bekannten Konstruktionen durch zunehmende Zerstörung der Kante der Düse und Ablagerungen erstarrter Schmelze und Schlacke nicht der Fall. Die teuere Blaslanzenspitze wird nicht mehr, oder weniger oft zerstört und die gefürchteten, gefährlichen Wassereinbrüche in den Konverter bleiben aus, oder kommen weniger oft vor.There are already heat and splash protection layers for oxygen blowing lances known, which are firmly connected to the copper and steel part of the blower lance, for Example by welding, spraying or After at least one During the blowing process or after damage, the protective cap is replaced with a new one. By changing the protective cap, the lance retains its calculated blowing behavior at. In known constructions, this is due to the increasing destruction of the edge the nozzle and deposits of solidified melt and slag are not the case. The expensive one The spearhead is no longer or less often destroyed and the dreaded, dangerous water ingress into the converter does not occur or occurs less often before.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung im Schnitt dargestellt. Es zeigt eine Blaslanzenspitze und wird im folgenden näher beschrieben. Es sind: 1 Stahlrohre 2 Kupferteil 3 Schweißnähte 4 Sauerstoffraum 5 Wasserraum 6 Austrittsdüsen 7 Gewinde 8 8 Ablös- und austauschbarer Hitze- und Spritzschutz anliegend 9 Ablös- und austauschbarer Hitze- und Spritzschutz mit Luftspalt 10 LuftspaltAn embodiment of the invention is shown in section in the drawing shown. It shows a lance tip and is described in more detail below. There are: 1 steel pipes 2 copper parts 3 welds 4 oxygen room 5 water room 6 outlet nozzles 7 thread 8 8 Removable and exchangeable heat and splash protection adjacent 9 Removable and exchangeable heat and splash protection with air gap 10 air gap
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813122178 DE3122178A1 (en) | 1981-06-04 | 1981-06-04 | Detachable and replaceable heat and splash protection for oxygen lances for steel production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813122178 DE3122178A1 (en) | 1981-06-04 | 1981-06-04 | Detachable and replaceable heat and splash protection for oxygen lances for steel production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3122178A1 true DE3122178A1 (en) | 1983-01-20 |
Family
ID=6133887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813122178 Withdrawn DE3122178A1 (en) | 1981-06-04 | 1981-06-04 | Detachable and replaceable heat and splash protection for oxygen lances for steel production |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3122178A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10060217A1 (en) * | 2000-12-04 | 2002-06-13 | Thyssenkrupp Stahl Ag | lance |
| WO2009153128A1 (en) * | 2008-06-17 | 2009-12-23 | Siemens Vai Metals Technologies Gmbh & Co | Oxygen blowing lance with protection element |
| WO2018115503A1 (en) * | 2016-12-23 | 2018-06-28 | Sandvik Intellectual Property Ab | A lance tube |
-
1981
- 1981-06-04 DE DE19813122178 patent/DE3122178A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10060217A1 (en) * | 2000-12-04 | 2002-06-13 | Thyssenkrupp Stahl Ag | lance |
| DE10060217B4 (en) * | 2000-12-04 | 2004-04-15 | Thyssenkrupp Stahl Ag | lance |
| WO2009153128A1 (en) * | 2008-06-17 | 2009-12-23 | Siemens Vai Metals Technologies Gmbh & Co | Oxygen blowing lance with protection element |
| JP2011524469A (en) * | 2008-06-17 | 2011-09-01 | シーメンス・ファオアーイー・メタルズ・テクノロジーズ・ゲーエムベーハー | Oxygen blown lance with protective element |
| WO2018115503A1 (en) * | 2016-12-23 | 2018-06-28 | Sandvik Intellectual Property Ab | A lance tube |
| CN110088550A (en) * | 2016-12-23 | 2019-08-02 | 山特维克知识产权股份有限公司 | Lance tube |
| CN110088550B (en) * | 2016-12-23 | 2022-04-26 | 山特维克知识产权股份有限公司 | gun barrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: MENGELKOCH, OTTMAR, 5414 CANACH, LU |
|
| 8181 | Inventor (new situation) |
Free format text: ERFINDER IST ANMELDER |
|
| 8110 | Request for examination paragraph 44 | ||
| 8130 | Withdrawal |