EP3290532A4 - Bottom-blowing plug with improved workability - Google Patents

Bottom-blowing plug with improved workability Download PDF

Info

Publication number
EP3290532A4
EP3290532A4 EP15910651.7A EP15910651A EP3290532A4 EP 3290532 A4 EP3290532 A4 EP 3290532A4 EP 15910651 A EP15910651 A EP 15910651A EP 3290532 A4 EP3290532 A4 EP 3290532A4
Authority
EP
European Patent Office
Prior art keywords
improved workability
blowing plug
blowing
plug
workability
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
EP15910651.7A
Other languages
German (de)
French (fr)
Other versions
EP3290532B1 (en
EP3290532A1 (en
Inventor
Kunihiro Koide
Tomohiro Tsuda
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.)
TYK Corp
Original Assignee
TYK Corp
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 TYK Corp filed Critical TYK Corp
Publication of EP3290532A1 publication Critical patent/EP3290532A1/en
Publication of EP3290532A4 publication Critical patent/EP3290532A4/en
Application granted granted Critical
Publication of EP3290532B1 publication Critical patent/EP3290532B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21C5/48—Bottoms or tuyéres of converters
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/161—Introducing a fluid jet or current into the charge through a porous element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/167—Introducing a fluid jet or current into the charge the fluid being a neutral gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • F27D2027/002—Gas stirring

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General 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)
EP15910651.7A 2015-12-17 2015-12-17 Converter furnace with bottom-blowing plug with improved workability Active EP3290532B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/006284 WO2017103959A1 (en) 2015-12-17 2015-12-17 Bottom-blowing plug with improved workability

Publications (3)

Publication Number Publication Date
EP3290532A1 EP3290532A1 (en) 2018-03-07
EP3290532A4 true EP3290532A4 (en) 2018-05-23
EP3290532B1 EP3290532B1 (en) 2020-05-06

Family

ID=59056488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15910651.7A Active EP3290532B1 (en) 2015-12-17 2015-12-17 Converter furnace with bottom-blowing plug with improved workability

Country Status (4)

Country Link
EP (1) EP3290532B1 (en)
JP (1) JP6563034B2 (en)
CN (1) CN107109502A (en)
WO (1) WO2017103959A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6780115B2 (en) * 2017-07-11 2020-11-04 東京窯業株式会社 Furnace and bottom blowing plug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567433A (en) *
JPS60135512A (en) * 1983-12-26 1985-07-18 Nippon Steel Corp Oxygen converter
JPH0324219A (en) * 1989-06-22 1991-02-01 Nkk Corp Bottom blowing tuyere
EP0776983A1 (en) * 1995-05-25 1997-06-04 Japan Casting & Forging Corporation Nozzle for blowing gas into molten metal and usage thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013405B2 (en) * 1980-11-14 1985-04-06 住友金属工業株式会社 Tuyeres for molten metal smelting
US4502670A (en) * 1984-02-02 1985-03-05 Allied Corporation Gas hook-up to a ladle
CN2612676Y (en) * 2003-04-17 2004-04-21 攀枝花新钢钒股份有限公司提钒炼钢厂 Bottom gas supply device of combined blown converter
JP2007262471A (en) * 2006-03-28 2007-10-11 Tokyo Yogyo Co Ltd Gas-blowing plug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567433A (en) *
JPS60135512A (en) * 1983-12-26 1985-07-18 Nippon Steel Corp Oxygen converter
JPH0324219A (en) * 1989-06-22 1991-02-01 Nkk Corp Bottom blowing tuyere
EP0776983A1 (en) * 1995-05-25 1997-06-04 Japan Casting & Forging Corporation Nozzle for blowing gas into molten metal and usage thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017103959A1 *

Also Published As

Publication number Publication date
EP3290532B1 (en) 2020-05-06
JP6563034B2 (en) 2019-09-04
EP3290532A1 (en) 2018-03-07
JPWO2017103959A1 (en) 2018-09-20
WO2017103959A1 (en) 2017-06-22
CN107109502A (en) 2017-08-29

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