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FR2398804A1 - IMPROVEMENTS TO DEVICES INTENDED TO BE SUBJECT TO SEVERE THERMAL CONSTRAINTS - Google Patents

IMPROVEMENTS TO DEVICES INTENDED TO BE SUBJECT TO SEVERE THERMAL CONSTRAINTS

Info

Publication number
FR2398804A1
FR2398804A1 FR7723010A FR7723010A FR2398804A1 FR 2398804 A1 FR2398804 A1 FR 2398804A1 FR 7723010 A FR7723010 A FR 7723010A FR 7723010 A FR7723010 A FR 7723010A FR 2398804 A1 FR2398804 A1 FR 2398804A1
Authority
FR
France
Prior art keywords
refractory
rod
severe thermal
stack
subject
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
FR7723010A
Other languages
French (fr)
Other versions
FR2398804B1 (en
Inventor
Hugues Zanetta
Bernard Bahout
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7723010A priority Critical patent/FR2398804A1/en
Publication of FR2398804A1 publication Critical patent/FR2398804A1/en
Application granted granted Critical
Publication of FR2398804B1 publication Critical patent/FR2398804B1/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)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Dispositif destiné à être soumis, au cours de son utilisation, à des conditions thermiques sévères et comprenant un embout réfractaire 1 fixé à l'extrémité d'une tige métallique 2, un empilage de viroles réfractaires 6, enfilés sur la tige 2 et maintenues en contact sans jeu avec l'embout par des moyens de serrage 7 placés sur la partie terminale haute de la tige. L'invention consiste à doter un tel dispositif de moyens de compression 14 exerçant sur l'empilage de virole 6 une action antagoniste élastique. L'invention réduit les risques de détérioration du dispositif, découlant de la formation de fissures sur le réfractaire. Elle facilite en outre les opérations de remplacement de l'embout. L'invention est applicable à tout dispositif du genre précité, et en particulier aux lances d'insufflation de produits d'affinage plongeant de façon répétitive dans un récipient métallurgique contenant une masse d'acier en fusion.Device intended to be subjected, during its use, to severe thermal conditions and comprising a refractory end piece 1 fixed to the end of a metal rod 2, a stack of refractory ferrules 6, threaded onto the rod 2 and held in place. contact without play with the end piece by clamping means 7 placed on the upper end part of the rod. The invention consists in providing such a device with compression means 14 exerting an elastic antagonistic action on the stack of ferrule 6. The invention reduces the risks of deterioration of the device, resulting from the formation of cracks on the refractory. It also facilitates tip replacement operations. The invention is applicable to any device of the aforementioned type, and in particular to lances for blowing refining products which are repeatedly plunged into a metallurgical vessel containing a mass of molten steel.

FR7723010A 1977-07-25 1977-07-25 IMPROVEMENTS TO DEVICES INTENDED TO BE SUBJECT TO SEVERE THERMAL CONSTRAINTS Granted FR2398804A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7723010A FR2398804A1 (en) 1977-07-25 1977-07-25 IMPROVEMENTS TO DEVICES INTENDED TO BE SUBJECT TO SEVERE THERMAL CONSTRAINTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7723010A FR2398804A1 (en) 1977-07-25 1977-07-25 IMPROVEMENTS TO DEVICES INTENDED TO BE SUBJECT TO SEVERE THERMAL CONSTRAINTS

Publications (2)

Publication Number Publication Date
FR2398804A1 true FR2398804A1 (en) 1979-02-23
FR2398804B1 FR2398804B1 (en) 1980-04-18

Family

ID=9193852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723010A Granted FR2398804A1 (en) 1977-07-25 1977-07-25 IMPROVEMENTS TO DEVICES INTENDED TO BE SUBJECT TO SEVERE THERMAL CONSTRAINTS

Country Status (1)

Country Link
FR (1) FR2398804A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051746A1 (en) * 1980-11-07 1982-05-19 Krupp Stahl Aktiengesellschaft Immersion lance for steel making purposes
FR2537698A1 (en) * 1982-12-08 1984-06-15 Lafarge Refractaires Device for protecting a metal tube subjected to severe thermal conditions.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051746A1 (en) * 1980-11-07 1982-05-19 Krupp Stahl Aktiengesellschaft Immersion lance for steel making purposes
FR2537698A1 (en) * 1982-12-08 1984-06-15 Lafarge Refractaires Device for protecting a metal tube subjected to severe thermal conditions.

Also Published As

Publication number Publication date
FR2398804B1 (en) 1980-04-18

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Legal Events

Date Code Title Description
ST Notification of lapse