JPS563615A - Lance - Google Patents

Lance

Info

Publication number
JPS563615A
JPS563615A JP7790479A JP7790479A JPS563615A JP S563615 A JPS563615 A JP S563615A JP 7790479 A JP7790479 A JP 7790479A JP 7790479 A JP7790479 A JP 7790479A JP S563615 A JPS563615 A JP S563615A
Authority
JP
Japan
Prior art keywords
nozzles
oxygen
lance
fusion
nozzle tip
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
JP7790479A
Other languages
Japanese (ja)
Other versions
JPS604243B2 (en
Inventor
Manabu Sakamoto
Tomonori Kuwano
Kakuzou Fukazawa
Kenichi Nandachi
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.)
Kawasaki Heavy Industries Ltd
Nippon Steel Nisshin Co Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Nisshin Steel Co Ltd
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 Kawasaki Heavy Industries Ltd, Nisshin Steel Co Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP7790479A priority Critical patent/JPS604243B2/en
Publication of JPS563615A publication Critical patent/JPS563615A/en
Publication of JPS604243B2 publication Critical patent/JPS604243B2/en
Expired 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)

Abstract

PURPOSE:To safely readily fusion-cut and remove the base metal deposited at the converter port by providing plural base-metal-fusion-cutting nozzles to the nozzle tip at the end of the water-cooled oxygen lance for top-blowing converters. CONSTITUTION:The lance 1 for oxygen top blowing converters is constituted by a lance body 2 and a nozzle tip 3 of replaceable ends. Plural refining nozzles 5 are formed at an equal spacing on the same circumference by being faced downward to the nozzle tip 3 and plural base-metal-fusion-cutting nozzles 6 are formed at an equal spacing in the circumferential diretion on the same circumference around the same. These nozzles 6 assume a mounting angle beta with respect to the horizontal plane and this beta is made the angles of the range from 30 deg. upward to 45 deg. downward. Oxygen gas channels 18, 19 to the nozzles 5 and 6 are connected to an oxygen source by way of control valves 9, 12 to permit independent controlling of oxygen flow rate. In addition, the lance 1 is water-cooled by the cooling water passed in the feed line 20 and return line 24. The base metal deposited at the converter port may be safely and readily fusion-cut by the oxygen jet from the horizontally facing nozzles 6.
JP7790479A 1979-06-19 1979-06-19 Lance Expired JPS604243B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7790479A JPS604243B2 (en) 1979-06-19 1979-06-19 Lance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7790479A JPS604243B2 (en) 1979-06-19 1979-06-19 Lance

Publications (2)

Publication Number Publication Date
JPS563615A true JPS563615A (en) 1981-01-14
JPS604243B2 JPS604243B2 (en) 1985-02-02

Family

ID=13647055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7790479A Expired JPS604243B2 (en) 1979-06-19 1979-06-19 Lance

Country Status (1)

Country Link
JP (1) JPS604243B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2543628C2 (en) * 2013-07-04 2015-03-10 Общество с ограниченной ответственностью "Научно-производственное предприятие "ВАЛОК" (ООО "НПП "ВАЛОК") Nozzle of oxygen-converter tuyere

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432118Y2 (en) * 1986-09-05 1992-07-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2543628C2 (en) * 2013-07-04 2015-03-10 Общество с ограниченной ответственностью "Научно-производственное предприятие "ВАЛОК" (ООО "НПП "ВАЛОК") Nozzle of oxygen-converter tuyere

Also Published As

Publication number Publication date
JPS604243B2 (en) 1985-02-02

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