SE451851B - SAFETY PROTECTOR FOR MOLD METAL BATH LANS - Google Patents
SAFETY PROTECTOR FOR MOLD METAL BATH LANSInfo
- Publication number
- SE451851B SE451851B SE8006739A SE8006739A SE451851B SE 451851 B SE451851 B SE 451851B SE 8006739 A SE8006739 A SE 8006739A SE 8006739 A SE8006739 A SE 8006739A SE 451851 B SE451851 B SE 451851B
- Authority
- SE
- Sweden
- Prior art keywords
- ring
- metal bath
- refractory material
- insert
- lance
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims description 8
- 230000001012 protector Effects 0.000 title 1
- 230000002787 reinforcement Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000011819 refractory material Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000010425 asbestos Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 210000002105 tongue Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
451 851 I praktiken vid det nya beslaget är armeringsinlägget utformat av ett metallgaller. Detta metallgaller är företrädesvis uppbyggt av stâltrâdar, som följer skruvlinjer mer eller mindre tillplat- tade och inflätade efter varandra den ena i den andra. 451 851 In practice with the new fitting, the reinforcement insert is designed by a metal grid. This metal grid is preferably made up of steel wires, which follow helical lines more or less flattened and intertwined one after the other in the other.
Dessa distansorgan medger att man kan hälla armeringsinlägget på ett praktiskt taget konstant avstånd från_gjutformens cylindris- ka inneryta vid införandet och vibreringen av det eldfasta mate- rialet i formen.These spacers allow the reinforcing insert to be poured at a substantially constant distance from the cylindrical inner surface of the mold when inserting and vibrating the refractory material into the mold.
Företrädesvis utgöres varje distansorgan av en toroidformad ring bildad av ståltråd lindad i spiral utmed den toroidformade ytan.Preferably, each spacer is a toroidal ring formed of steel wire wound in a spiral along the toroidal surface.
Andra detaljer och särdrag i uppfinningen framträder i anslutning till beskrivningen av de bifogade ritningarna som endast schema- tiskt illustrerar ett utförandeexempel av uppfinningen.Other details and features of the invention will become apparent in connection with the description of the accompanying drawings which only schematically illustrates an embodiment of the invention.
Fig. 1 visar ett axiellt snitt av ett nytt skyddande beslag, fig. 2 ett axiellt snitt av den nedre delen av en lans innefattande de nya beslagen och fig. 3 är en partiell perspektivvy av armerings- inlägget i det nya beslaget.Fig. 1 shows an axial section of a new protective fitting, Fig. 2 an axial section of the lower part of a lance comprising the new fittings and Fig. 3 is a partial perspective view of the reinforcement insert in the new fitting.
I de olika figurerna betecknar samma hänvisningsbeteckningar sam- ma detaljer eller liknande.In the various figures, the same reference numerals denote the same details or the like.
Det visade beslaget tjänar till att skydda metallröret 1 till en inblâsningslans eller en injiceringslans i ett stâlverk. Det rör sig t.ex. om en lans för att införa åtminstone ett kemiskt raffi- neringselement, för avkolning eller för avsvavling i ett stålbad.The fitting shown serves to protect the metal tube 1 of a blow-in lance or an injection lance in a steelworks. These are e.g. about a lance for introducing at least one chemical refining element, for decarburization or for desulphurisation in a steel bath.
Beslaget är en ring 2 begränsad av två cylindriska koncentriska ytor, en yttre 3 och en andra inre 4 och av tvâ tvärgående ytor den ena övre 5 och den andra undre 6.The fitting is a ring 2 bounded by two cylindrical concentric surfaces, an outer 3 and a second inner 4 and by two transverse surfaces one upper 5 and the other lower 6.
För att underlätta deras axiella upplinjering i förhållande till intilliggande beslag övre och undre har ringen i varje beslag i mitten av sin övre yta 5 en not 7, under det att i sin undre yta 6 en spont 8 likaledes i mitten av den undre ytan. Noten 7 och sponten 8 har halvcirkulära tvärsektioner som svarar mot varandra.To facilitate their axial alignment with respect to adjacent fittings upper and lower, the ring in each fitting has in the middle of its upper surface 5 a groove 7, while in its lower surface 6 a tongue and groove 8 likewise in the middle of the lower surface. The groove 7 and the tongue-and-groove 8 have semicircular cross-sections which correspond to each other.
Ringen 2 är uppbyggd av en eldfast massa 9 känd i och för sig.The ring 2 is made up of a refractory mass 9 known per se.
'RÖ /~\ 451 851 Enligt uppfinningsidên är ringen 2 dvs den eldfasta massan 9 inre armerad medelst åtminstone ett genombrutet armeringsinlägg 10. Armeringen 10 är inbäddad i den eldfasta massan 7.According to the inventive idea, the ring 2, i.e. the refractory mass 9, is internally reinforced by means of at least one perforated reinforcement insert 10. The reinforcement 10 is embedded in the refractory mass 7.
I det valda exemplet är armeringsinlägget 10 koncentriskt med ringens yttre yta 3 och inre yta 4 och sträcker sig i höjd mellan ringens övre yta 5 och undre yta 6.In the selected example, the reinforcing insert 10 is concentric with the outer surface 3 and inner surface 4 of the ring and extends in height between the upper surface 5 and lower surface 6 of the ring.
Företrädesvis är armeringsinlägget 10 bildat av ett metallgaller uppbyggt av ståltrådar lindade så att var och en följer en spi- ral mer eller mindre tillplattad. Trådarna 11 är inflätade efter varandra den ena i den andra såsom visas i fig. 3.Preferably, the reinforcing insert 10 is formed of a metal grid constructed of steel wires wound so that each follows a spiral more or less flattened. The threads 11 are intertwined one after the other as shown in Fig. 3.
Med fördel omfattar ringen 2 distansorgan 12 var och en formad företrädesvis av en ståltråd sträckande sig likaledes följande en spiral mer eller mindre tillplattad. Distansorganen 12 är pla- cerade mellan den inre cylindriska ytan i tillverkningsformen för ringen 2 och armeringsinlägget 10 är placerat i formen, före in- förandet av det eldfasta materialet i formen. Sålunda vidmakthål- ler distansorganen 12 armeringsinlägget 10 på ett i huvudsak kons- tant avstånd från formens inre cylindriska yta vid införandet och vibreringen av det eldfasta materialet. Efter tillverkningen är således armeringsinlägget 10 inbäddat i ringens 2 eldfasta massa 9 och är väsentligen koncentriskt med de cylindriska ytorna 3 och 4.Advantageously, the ring 2 comprises spacers 12 each formed preferably of a steel wire extending likewise following a spiral more or less flattened. The spacers 12 are placed between the inner cylindrical surface in the manufacturing form of the ring 2 and the reinforcing insert 10 is placed in the mold, before the introduction of the refractory material into the mold. Thus, the spacers 12 maintain the reinforcing insert 10 at a substantially constant distance from the inner cylindrical surface of the mold during the insertion and vibration of the refractory material. Thus, after manufacture, the reinforcing insert 10 is embedded in the refractory mass 9 of the ring 2 and is substantially concentric with the cylindrical surfaces 3 and 4.
Vid montage av lansen vilar det lägsta beslaget omkring röret 1 på en eldfast näsa 13 med en undre täthetsfog 14 av asbest. Pâ känt sätt är näsan 13 urholkad och gängad på en eldfast ring med motsvarande gänga 15 omgivande röret 1. Ringen 15 vilar på en krage 16 av stål fästad till understa änden på röret 1 i näsans 13 hålighet. De mellanliggande beslagen vilar successivt den ena på den andra varje gång med inskjutande av en täthetsfog 17 lika- ledes av asbest och styrda ömsesidigt omkring röret 1 tack vare deras noter 7 och deras sponter 8.When mounting the lance, the lowest fitting rests around the tube 1 on a refractory nose 13 with a lower sealing joint 14 of asbestos. In a known manner, the nose 13 is hollowed out and threaded on a refractory ring with the corresponding thread 15 surrounding the tube 1. The ring 15 rests on a steel collar 16 attached to the lower end of the tube 1 in the cavity of the nose 13. The intermediate fittings successively rest one on top of the other each time with the insertion of a tightness joint 17 likewise of asbestos and guided mutually around the pipe 1 thanks to their grooves 7 and their tongues 8.
Det är uppenbart att uppfinningen ej är uteslutande begränsad till de utföringsformer som visas och att modifieringar väl kan göras i formen, dispositionen och uppbyggnaden av vissa av de element som visats för dess utförande under förutsättning att dessa mo- diferingar ej står i motsatsförhållande till det som beskrives av var och en av de följande patentkraven.It is obvious that the invention is not exclusively limited to the embodiments shown and that modifications may well be made in the shape, disposition and construction of some of the elements shown for its execution provided that these modifications are not in opposition to what is shown. described by each of the following claims.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE197348A BE879036A (en) | 1979-09-27 | 1979-09-27 | SQUEEGEE FOR BLOWING OR INJECTION LANCE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8006739L SE8006739L (en) | 1981-03-28 |
| SE451851B true SE451851B (en) | 1987-11-02 |
Family
ID=3843254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8006739A SE451851B (en) | 1979-09-27 | 1980-09-26 | SAFETY PROTECTOR FOR MOLD METAL BATH LANS |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT375677B (en) |
| BE (1) | BE879036A (en) |
| DE (1) | DE3035607A1 (en) |
| ES (1) | ES495399A0 (en) |
| FR (1) | FR2466508B1 (en) |
| GB (1) | GB2059559B (en) |
| IT (1) | IT1133824B (en) |
| LU (1) | LU82794A1 (en) |
| NL (1) | NL8005302A (en) |
| SE (1) | SE451851B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0062217B1 (en) * | 1981-04-02 | 1986-05-14 | Mono Construction Limited | Metallurgical lance |
| EP0070109A1 (en) * | 1981-07-08 | 1983-01-19 | Dyson Refractories Limited | Injection lances |
| BE893651A (en) * | 1982-06-25 | 1982-12-27 | Desaar Rene | POROUS NOSE FOR STEEL BALLING |
| DE3322556A1 (en) * | 1983-06-23 | 1985-01-10 | Didier-Werke Ag, 6200 Wiesbaden | Lance for blowing fluidised materials into molten metal |
| DE3719862C2 (en) * | 1986-08-20 | 1988-10-27 | Plibrico Co Gmbh | DIVE LANCE |
| DE8622299U1 (en) * | 1986-08-20 | 1986-10-02 | Plibrico Co GmbH, 4000 Düsseldorf | Diving lance |
| GB8706763D0 (en) * | 1987-03-21 | 1987-04-23 | Stein Refractories | Lance for metallurgical use |
| US4792125A (en) * | 1987-08-24 | 1988-12-20 | Bethlehem Steel Corporation | Consumable lance |
| FR2676669A1 (en) * | 1991-05-24 | 1992-11-27 | Terres Refractaires Boulonnais | Injection lance for treating molten metals |
| DE29914990U1 (en) * | 1999-08-27 | 2001-01-18 | Plibrico Gmbh | Reinforcement for sheathing a metal pipe |
| DE102004054026B4 (en) * | 2004-11-05 | 2008-12-04 | Jankowski Gmbh & Co. Kg | Lance for introducing a particular gaseous medium into a liquid metal and method for the production |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE693927C (en) * | 1939-01-18 | 1940-07-22 | August Thyssen Huette Akt Ges | Injection pipe for introducing desulphurisation or cleaning agents into liquid iron |
| US2614585A (en) * | 1948-01-22 | 1952-10-21 | Hydrocarbon Research Inc | Composite pipe |
| US3778250A (en) * | 1969-02-26 | 1973-12-11 | Jones & Laughlin Steel Corp | Method for treating metallic melts |
| AU2082270A (en) * | 1970-10-07 | 1972-04-13 | Monzino Riotinto Of Australia Limited | Cooling of lances |
| DE2058967B2 (en) * | 1970-12-01 | 1975-08-21 | Sueddeutsche Kalkstickstoff-Werke Ag, 8223 Trostberg | Diving lance |
| DE2626982C3 (en) * | 1975-01-21 | 1985-04-04 | GR-Stein Refractories Ltd., Sheffield, Yorkshire | Lance for blowing fluidized substances into a molten metal and method for producing the lance |
| DE7613309U1 (en) * | 1976-04-28 | 1976-09-02 | Stahlwerke Peine-Salzgitter Ag, 3150 Peine | LANCE FOR INJECTING FLUIDIZED SUBSTANCES INTO A METAL MELT |
-
1979
- 1979-09-27 BE BE197348A patent/BE879036A/en unknown
-
1980
- 1980-09-18 GB GB8030193A patent/GB2059559B/en not_active Expired
- 1980-09-20 DE DE19803035607 patent/DE3035607A1/en not_active Withdrawn
- 1980-09-23 NL NL8005302A patent/NL8005302A/en not_active Application Discontinuation
- 1980-09-23 LU LU82794A patent/LU82794A1/en unknown
- 1980-09-24 FR FR8020500A patent/FR2466508B1/en not_active Expired
- 1980-09-26 SE SE8006739A patent/SE451851B/en not_active IP Right Cessation
- 1980-09-26 IT IT24953/80A patent/IT1133824B/en active
- 1980-09-26 ES ES495399A patent/ES495399A0/en active Granted
- 1980-09-26 AT AT0483780A patent/AT375677B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| GB2059559A (en) | 1981-04-23 |
| SE8006739L (en) | 1981-03-28 |
| IT1133824B (en) | 1986-07-24 |
| IT8024953A0 (en) | 1980-09-26 |
| AT375677B (en) | 1984-08-27 |
| NL8005302A (en) | 1981-03-31 |
| FR2466508A1 (en) | 1981-04-10 |
| ES8105786A1 (en) | 1981-06-16 |
| ES495399A0 (en) | 1981-06-16 |
| ATA483780A (en) | 1984-01-15 |
| GB2059559B (en) | 1983-03-23 |
| DE3035607A1 (en) | 1981-04-16 |
| LU82794A1 (en) | 1980-12-15 |
| FR2466508B1 (en) | 1985-10-18 |
| BE879036A (en) | 1980-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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