JPS54148106A - Blast furnace tuyere with variable blast opening - Google Patents

Blast furnace tuyere with variable blast opening

Info

Publication number
JPS54148106A
JPS54148106A JP5656078A JP5656078A JPS54148106A JP S54148106 A JPS54148106 A JP S54148106A JP 5656078 A JP5656078 A JP 5656078A JP 5656078 A JP5656078 A JP 5656078A JP S54148106 A JPS54148106 A JP S54148106A
Authority
JP
Japan
Prior art keywords
tuyere
blast
throttle part
oval hole
opening
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
JP5656078A
Other languages
Japanese (ja)
Other versions
JPS5745806B2 (en
Inventor
Yukio Nakamura
Masayuki Kasai
Akira Maki
Masamichi Matsuda
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP5656078A priority Critical patent/JPS54148106A/en
Publication of JPS54148106A publication Critical patent/JPS54148106A/en
Publication of JPS5745806B2 publication Critical patent/JPS5745806B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

PURPOSE:To freely regulate the blast opening of tuyere by providing tuyere nozzle with oval hole and movable throttle part to the tip of blast furnace tuyere and by changing the overlapping position of oval holes by rotating the throttle part. CONSTITUTION:The tuyere nozzle 4 with the oval hole 3 whose long axle is slightly shorter than the inside diameter of the blast opening 2 is fitted to the tip of the tuyere body 1 with the circular blast opening 2. And, the movable throttle part 5 with the oval hole 6 of the same form as the oval hole of the tuyere nozzle 4 and also the bevel gear 7 on its outside perimeter is provided likewise. When the balst opening of tuyere is needed to change, the bevel gear 7 of the movable throttle part 5 is rotated by the bevel gear 13 to rotate the movable throttle part 5. When the long axle of the oval hole 6 of the movable throttle part 5 coincides with the long axle of the oval hole 3 of the tuyere nozzle 4, the blast opening becomes maximum and also when the short axle overlaps on the long axle, the blast opening becomes minimum.
JP5656078A 1978-05-15 1978-05-15 Blast furnace tuyere with variable blast opening Granted JPS54148106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5656078A JPS54148106A (en) 1978-05-15 1978-05-15 Blast furnace tuyere with variable blast opening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5656078A JPS54148106A (en) 1978-05-15 1978-05-15 Blast furnace tuyere with variable blast opening

Publications (2)

Publication Number Publication Date
JPS54148106A true JPS54148106A (en) 1979-11-20
JPS5745806B2 JPS5745806B2 (en) 1982-09-30

Family

ID=13030494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5656078A Granted JPS54148106A (en) 1978-05-15 1978-05-15 Blast furnace tuyere with variable blast opening

Country Status (1)

Country Link
JP (1) JPS54148106A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772112A (en) * 1984-11-30 1988-09-20 Cvi/Beta Ventures, Inc. Eyeglass frame including shape-memory elements
US4896955A (en) * 1983-12-06 1990-01-30 Cvi/Beta Ventures, Inc. Eyeglass frame including shape-memory elements
KR100856279B1 (en) * 2001-12-13 2008-09-03 주식회사 포스코 Apparatus for contolling internal diameter of blast furnace tuyeres

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896955A (en) * 1983-12-06 1990-01-30 Cvi/Beta Ventures, Inc. Eyeglass frame including shape-memory elements
US4772112A (en) * 1984-11-30 1988-09-20 Cvi/Beta Ventures, Inc. Eyeglass frame including shape-memory elements
KR100856279B1 (en) * 2001-12-13 2008-09-03 주식회사 포스코 Apparatus for contolling internal diameter of blast furnace tuyeres

Also Published As

Publication number Publication date
JPS5745806B2 (en) 1982-09-30

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