SE426505B - DOUBLE PLAN FOR INFORING THE SOLID SUBSTANCE IN POWDER OR DUST FORM - Google Patents
DOUBLE PLAN FOR INFORING THE SOLID SUBSTANCE IN POWDER OR DUST FORMInfo
- Publication number
- SE426505B SE426505B SE7801992A SE7801992A SE426505B SE 426505 B SE426505 B SE 426505B SE 7801992 A SE7801992 A SE 7801992A SE 7801992 A SE7801992 A SE 7801992A SE 426505 B SE426505 B SE 426505B
- Authority
- SE
- Sweden
- Prior art keywords
- powder
- tube
- pipe
- inforing
- dust form
- Prior art date
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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (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)
- Furnace Charging Or Discharging (AREA)
Description
10 15 i rraamesszfl bildas av en vinkelprofil, som bildar tillsammans med utsidan av röret en kanal. I , Företrädesvis är de fria skänkeländarna fastsvetsade vid utsidan av röret. 10 15 i rraamessz fl formed by an angular profile, which forms together with the outside of tube a channel. I, Preferably, the free leg ends are welded to the outside of the tube.
Det har visat sig att vid en sådan dopplans inga svängnings- sprickor uppträder mer, så att brukbarheten hos sådana lansar kan ökas avsevärt i jämförelse med konventionella lansar.It has been found that in such a immersion plane no oscillation cracks appear more, so that the usability of such lances can significantly increased compared to conventional lances.
Uppfinningen förklaras nedan närmare under hänvisning till en ritning som visar i tvärsnitt en dopplans.The invention is explained in more detail below with reference to a drawing showing in cross section a baptismal font.
Dopplansen består av ett metallrör 1, särskilt ett stålrör, på vilket tre vínkeljärnsprofiler Z är fästade med sina fria ändar Som fastsättníng har använts en över hela längden De på röret 1 fastsatta vinkel- av skänklarna. av profilen 2 förlöpande svets. profilerna 2 bildar kanaler 3, genom vilka lansen kan kylas.The immersion plant consists of a metal tube 1, in particular a steel tube, to which three angle iron profiles Z are attached with their free ends As an attachment, one over the entire length has been used The angular of the legs. of the profile 2 continuous welding. the profiles 2 form channels 3, through which the lance can be cooled.
Röret 1 och vinkelprofilerna 2 är klädda med ett foder 4 av ett eldfast, icke-metalliskt material, särskilt chamotte-betong. Det eldfasta materialet förstärks genom strålformigt förlöpande, stav- formade armeringar 5, som är fästade med sin ena kant vid röret 1 eller vinkelprofilerna 2.The tube 1 and the angle profiles 2 are lined with a liner 4 of one refractory, non-metallic material, in particular chamotte concrete. The refractory material is reinforced by radial, rod-shaped shaped reinforcements 5, which are attached with one edge to the tube 1 or the angle profiles 2.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2708410A DE2708410C2 (en) | 1977-02-26 | 1977-02-26 | Diving lance |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7801992L SE7801992L (en) | 1978-08-27 |
SE426505B true SE426505B (en) | 1983-01-24 |
Family
ID=6002241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7801992A SE426505B (en) | 1977-02-26 | 1978-02-21 | DOUBLE PLAN FOR INFORING THE SOLID SUBSTANCE IN POWDER OR DUST FORM |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE863756A (en) |
DE (1) | DE2708410C2 (en) |
FR (1) | FR2381830A1 (en) |
GB (1) | GB1579522A (en) |
IT (1) | IT1092840B (en) |
LU (1) | LU79110A1 (en) |
NL (1) | NL177611C (en) |
SE (1) | SE426505B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2066733A (en) * | 1979-03-16 | 1981-07-15 | Hoeganaes Ab | Refractory lining for a metal pipe |
DE2912195C2 (en) * | 1979-03-28 | 1986-04-30 | Mannesmann AG, 4000 Düsseldorf | Desulfurization lance |
DE3322556A1 (en) * | 1983-06-23 | 1985-01-10 | Didier-Werke Ag, 6200 Wiesbaden | Lance for blowing fluidised materials into molten metal |
AUPQ783100A0 (en) * | 2000-05-30 | 2000-06-22 | Technological Resources Pty Limited | Apparatus for injecting solid particulate material into a vessel |
-
1977
- 1977-02-26 DE DE2708410A patent/DE2708410C2/en not_active Expired
-
1978
- 1978-02-03 GB GB4529/78A patent/GB1579522A/en not_active Expired
- 1978-02-08 BE BE184994A patent/BE863756A/en not_active IP Right Cessation
- 1978-02-21 NL NLAANVRAGE7801948,A patent/NL177611C/en not_active IP Right Cessation
- 1978-02-21 SE SE7801992A patent/SE426505B/en not_active IP Right Cessation
- 1978-02-23 LU LU79110A patent/LU79110A1/en unknown
- 1978-02-23 FR FR7805235A patent/FR2381830A1/en active Granted
- 1978-02-24 IT IT20597/78A patent/IT1092840B/en active
Also Published As
Publication number | Publication date |
---|---|
NL177611C (en) | 1985-10-16 |
DE2708410C2 (en) | 1979-04-19 |
NL177611B (en) | 1985-05-17 |
GB1579522A (en) | 1980-11-19 |
FR2381830A1 (en) | 1978-09-22 |
FR2381830B3 (en) | 1980-11-28 |
DE2708410B1 (en) | 1978-08-24 |
IT1092840B (en) | 1985-07-12 |
BE863756A (en) | 1978-05-29 |
IT7820597A0 (en) | 1978-02-24 |
NL7801948A (en) | 1978-08-29 |
SE7801992L (en) | 1978-08-27 |
LU79110A1 (en) | 1978-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7801992-4 Effective date: 19940910 Format of ref document f/p: F |