ATE9492T1 - SUBMERSIBLE LANCE FOR STEELWORK OPERATION. - Google Patents

SUBMERSIBLE LANCE FOR STEELWORK OPERATION.

Info

Publication number
ATE9492T1
ATE9492T1 AT81107966T AT81107966T ATE9492T1 AT E9492 T1 ATE9492 T1 AT E9492T1 AT 81107966 T AT81107966 T AT 81107966T AT 81107966 T AT81107966 T AT 81107966T AT E9492 T1 ATE9492 T1 AT E9492T1
Authority
AT
Austria
Prior art keywords
lance
axially
lance pipe
coupling
abutment
Prior art date
Application number
AT81107966T
Other languages
German (de)
Inventor
Peter Schuetz
Original Assignee
Krupp Stahl Aktiengesellschaft
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 Stahl Aktiengesellschaft filed Critical Krupp Stahl Aktiengesellschaft
Application granted granted Critical
Publication of ATE9492T1 publication Critical patent/ATE9492T1/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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (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)

Abstract

1. Immersion lance for steelworks operations, for blowing gases and/or pulverulent solids into pig-iron or steel melts, with a nozzle at the front end and with means for connecting a coupling at the rear end, comprising a lance pipe and a refractory jacket which is composed of a plurality of annular cylindrical segments, wherein the foremost segment is axially secured on the lance pipe by means of a holder, and the rearmost segment, which is arranged at a spacing from the connecting means of the coupling, abuts by means of an axially yieldable intermediate element, namely a preloaded spring, on an axially adjustable releasable abutment which is connected to the lance pipe by a force-locking connection, characterized in that a clamping element (8) variable in its axial extent is provided between the abutment (5) and the yieldable intermediate element (6).
AT81107966T 1980-11-07 1981-10-06 SUBMERSIBLE LANCE FOR STEELWORK OPERATION. ATE9492T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3041995A DE3041995C2 (en) 1980-11-07 1980-11-07 Immersion lance for steel works
EP81107966A EP0051746B1 (en) 1980-11-07 1981-10-06 Immersion lance for steel making purposes

Publications (1)

Publication Number Publication Date
ATE9492T1 true ATE9492T1 (en) 1984-10-15

Family

ID=6116188

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81107966T ATE9492T1 (en) 1980-11-07 1981-10-06 SUBMERSIBLE LANCE FOR STEELWORK OPERATION.

Country Status (3)

Country Link
EP (1) EP0051746B1 (en)
AT (1) ATE9492T1 (en)
DE (1) DE3041995C2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1439522A (en) * 1922-01-14 1922-12-19 Karl S Howard Pouring ladle for molten metal
US3495815A (en) * 1967-07-17 1970-02-17 Union Carbide Corp Outside change tuyere
GB1400248A (en) * 1972-09-28 1975-07-16 Foseco Int Stopper rods
BE849582R (en) * 1976-01-07 1977-04-15 Rene Desaar POCKET CAST IRON DESULFURATION LANCE
FR2398804A1 (en) * 1977-07-25 1979-02-23 Siderurgie Fse Inst Rech Lance for immersion in a bath of liquid metal - has detachable tip of refractory material
GB2021242A (en) * 1977-12-10 1979-11-28 Duport Steels Ltd Blowing Lance for Solid Materials
BR8008777A (en) * 1979-03-16 1981-05-26 Hoeganaes Ab REFRACTORY COATING FOR A METAL PIPE

Also Published As

Publication number Publication date
EP0051746A1 (en) 1982-05-19
EP0051746B1 (en) 1984-09-19
DE3041995C2 (en) 1982-10-21
DE3041995A1 (en) 1982-07-22

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee