FR2436188A1 - Oxygen lance for steel converter - has detachable nozzle plate inserted in lance so that bottom edge of lance is lower than bottom edge of plate - Google Patents

Oxygen lance for steel converter - has detachable nozzle plate inserted in lance so that bottom edge of lance is lower than bottom edge of plate

Info

Publication number
FR2436188A1
FR2436188A1 FR7922775A FR7922775A FR2436188A1 FR 2436188 A1 FR2436188 A1 FR 2436188A1 FR 7922775 A FR7922775 A FR 7922775A FR 7922775 A FR7922775 A FR 7922775A FR 2436188 A1 FR2436188 A1 FR 2436188A1
Authority
FR
France
Prior art keywords
lance
plate
bottom edge
pref
steel converter
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.)
Granted
Application number
FR7922775A
Other languages
French (fr)
Other versions
FR2436188B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPAETER CARL
Original Assignee
SPAETER CARL
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 SPAETER CARL filed Critical SPAETER CARL
Publication of FR2436188A1 publication Critical patent/FR2436188A1/en
Application granted granted Critical
Publication of FR2436188B3 publication Critical patent/FR2436188B3/fr
Granted legal-status Critical Current

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
    • 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)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The O2 may also carry solid materials injected onto or into the bath of metal; and the nozzle outlet holes are formed by separate plate fixed mechanically to the bottom end of the lance. The plate is pref. inserted in the end so the bottom edge of the latter is lower than the bottom surface of the plate. The plate is pref. made of a refractory-metal or -ceramic, or from a combination of these materials and is pref. provided with one or more small holes for the escape of gas at a speed slower than that of the gas travelling through the main nozzle outlet holes. The plate is detachably mounted in the lance end via screws or keys to it can be easily and rapidly replaced without interfering with the chambers in the wall of the lance through which cooling water is circulated.
FR7922775A 1978-09-18 1979-09-12 Oxygen lance for steel converter - has detachable nozzle plate inserted in lance so that bottom edge of lance is lower than bottom edge of plate Granted FR2436188A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU80250A LU80250A1 (en) 1978-09-18 1978-09-18 ASSEMBLY WITH EJECTOR NOZZLES, CALLED "LANCE NOSE", USED TO BLOW GAS, VEHICULATING SOLID MATERIALS OR NOT, ON OR IN A FUSION METAL BATH

Publications (2)

Publication Number Publication Date
FR2436188A1 true FR2436188A1 (en) 1980-04-11
FR2436188B3 FR2436188B3 (en) 1981-08-14

Family

ID=19728998

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7922775A Granted FR2436188A1 (en) 1978-09-18 1979-09-12 Oxygen lance for steel converter - has detachable nozzle plate inserted in lance so that bottom edge of lance is lower than bottom edge of plate

Country Status (4)

Country Link
BE (1) BE878571A (en)
DE (1) DE2937303A1 (en)
FR (1) FR2436188A1 (en)
LU (1) LU80250A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2860243A1 (en) * 2003-09-30 2005-04-01 Air Liquide Multi-jet nozzle for a steelmaking oxygen injection lance with divergent optimized Laval tuyeres for improved injection speeds

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ532800A0 (en) * 2000-01-28 2000-02-17 Technological Resources Pty Limited Apparatus for injecting solid particulate material into a vessel
DE102012016143A1 (en) * 2012-08-08 2014-02-13 Saarstahl Ag Hot blast lance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2860243A1 (en) * 2003-09-30 2005-04-01 Air Liquide Multi-jet nozzle for a steelmaking oxygen injection lance with divergent optimized Laval tuyeres for improved injection speeds

Also Published As

Publication number Publication date
BE878571A (en) 1979-12-31
LU80250A1 (en) 1979-06-01
FR2436188B3 (en) 1981-08-14
DE2937303A1 (en) 1980-04-03

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Legal Events

Date Code Title Description
ST Notification of lapse