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 FORM

Info

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
Application number
SE7801992A
Other languages
Swedish (sv)
Other versions
SE7801992L (en
Inventor
J Berve
Original Assignee
Krupp Ag Huettenwerke
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 Krupp Ag Huettenwerke filed Critical Krupp Ag Huettenwerke
Publication of SE7801992L publication Critical patent/SE7801992L/en
Publication of SE426505B publication Critical patent/SE426505B/en

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)

7801992-4 3 Patentkrav7801992-4 3 Patent claims 1. Donplans för införande av fasta ämnen i pulver- eller dammform medelst ett gasformigt medium i en metallsmälta, särskilt i en stálsmälta, bestående av ett metallrör och ett röret omgivan- de foder av eldfast, icke-metalliskt material, särskilt chamotte- betong, som är förstärkt genom en med röret förbunden armering, som består av flera i perífeririktningen fördelade på röret fästa- de, särskilt fàstsvetsade längsgående flänsar, k ä n n e t e c k - n a d därav, att varje fläns är bildad av en xinkelprofil 2, som tillsammans med rörets (1) utsida bildar en karal (3).Plane for the introduction of solids in powder or dust form by means of a gaseous medium into a molten metal, in particular in a steel molten, consisting of a metal tube and a tube surrounding the lining of refractory, non-metallic material, in particular chamotte concrete, which is reinforced by a reinforcement connected to the pipe, which consists of several longitudinally attached longitudinally attached flanges attached to the pipe, characterized in that each flange is formed by a zinc profile 2, which together with the pipe ( 1) outside forms a karal (3). 2. Dopplans enligt krav 1, k ä n n e t e c k n a d därav, att vinkelprofilens (2) fria skänkeländar är fastsvetsade vid rörets (1) utsida. ANFURDA PUBLIKATIONER:Dipping plane according to Claim 1, characterized in that the free leg ends (2) of the angle profile (2) are welded to the outside of the tube (1). REQUIRED PUBLICATIONS:
SE7801992A 1977-02-26 1978-02-21 DOUBLE PLAN FOR INFORING THE SOLID SUBSTANCE IN POWDER OR DUST FORM SE426505B (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036763A1 (en) * 1979-03-16 1982-02-11 I Blom 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

Also Published As

Publication number Publication date
FR2381830B3 (en) 1980-11-28
NL7801948A (en) 1978-08-29
LU79110A1 (en) 1978-06-27
FR2381830A1 (en) 1978-09-22
GB1579522A (en) 1980-11-19
BE863756A (en) 1978-05-29
DE2708410C2 (en) 1979-04-19
IT1092840B (en) 1985-07-12
NL177611C (en) 1985-10-16
SE7801992L (en) 1978-08-27
IT7820597A0 (en) 1978-02-24
DE2708410B1 (en) 1978-08-24
NL177611B (en) 1985-05-17

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