EP4134186A4 - Lf refining ladle microporous ceramic rod air-permeable upper nozzle well block, and argon blowing control method therefor - Google Patents

Lf refining ladle microporous ceramic rod air-permeable upper nozzle well block, and argon blowing control method therefor Download PDF

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Publication number
EP4134186A4
EP4134186A4 EP21849887.1A EP21849887A EP4134186A4 EP 4134186 A4 EP4134186 A4 EP 4134186A4 EP 21849887 A EP21849887 A EP 21849887A EP 4134186 A4 EP4134186 A4 EP 4134186A4
Authority
EP
European Patent Office
Prior art keywords
control method
method therefor
upper nozzle
ceramic rod
argon blowing
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
EP21849887.1A
Other languages
German (de)
French (fr)
Other versions
EP4134186A1 (en
EP4134186B1 (en
Inventor
Guangjun WU
Zhongxue WANG
Wenjian Wu
Wei NING
Jinhong WANG
Yongsheng Chen
Yuli Wu
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.)
Laiwu Steel Group Yinshan Section Steel Co Ltd
Original Assignee
Laiwu Steel Group Yinshan Section 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 Laiwu Steel Group Yinshan Section Steel Co Ltd filed Critical Laiwu Steel Group Yinshan Section Steel Co Ltd
Publication of EP4134186A1 publication Critical patent/EP4134186A1/en
Publication of EP4134186A4 publication Critical patent/EP4134186A4/en
Application granted granted Critical
Publication of EP4134186B1 publication Critical patent/EP4134186B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/58—Pouring-nozzles with gas injecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/502—Connection arrangements; Sealing means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/505—Rings, inserts or other means preventing external nozzle erosion by the slag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle
    • 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
    • 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
    • C21C2250/00—Specific additives; Means for adding material different from burners or lances
    • C21C2250/08—Porous plug

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP21849887.1A 2020-07-25 2021-07-13 Lf refining ladle microporous ceramic rod air-permeable upper nozzle well block, and argon blowing control method therefor Active EP4134186B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010726676.4A CN111774560B (en) 2020-07-25 2020-07-25 LF refining ladle microporous ceramic rod breathable upper nozzle pocket brick and argon blowing control method thereof
PCT/CN2021/106078 WO2022022277A1 (en) 2020-07-25 2021-07-13 Lf refining ladle microporous ceramic rod air-permeable upper nozzle well block, and argon blowing control method therefor

Publications (3)

Publication Number Publication Date
EP4134186A1 EP4134186A1 (en) 2023-02-15
EP4134186A4 true EP4134186A4 (en) 2023-09-27
EP4134186B1 EP4134186B1 (en) 2024-10-09

Family

ID=72763337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21849887.1A Active EP4134186B1 (en) 2020-07-25 2021-07-13 Lf refining ladle microporous ceramic rod air-permeable upper nozzle well block, and argon blowing control method therefor

Country Status (4)

Country Link
EP (1) EP4134186B1 (en)
JP (1) JP7299430B2 (en)
CN (1) CN111774560B (en)
WO (1) WO2022022277A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111774560B (en) * 2020-07-25 2022-03-11 莱芜钢铁集团银山型钢有限公司 LF refining ladle microporous ceramic rod breathable upper nozzle pocket brick and argon blowing control method thereof
CN113118428B (en) * 2021-04-28 2024-09-03 山东钢铁股份有限公司 Dispersion type integral ladle bottom blowing air brick and forming process and application method thereof
CN113444858B (en) * 2021-06-24 2024-10-15 莱芜钢铁集团银山型钢有限公司 Argon blowing system for ladle ventilation upper nozzle pocket brick and installation method thereof
CN113523211B (en) * 2021-07-12 2022-04-29 莱芜钢铁集团银山型钢有限公司 Air leakage detection and argon blowing flow correction method for argon blowing air inlet pipeline of ladle permeable upper nozzle pocket brick
CN114433829B (en) * 2021-12-28 2024-05-24 莱芜钢铁集团银山型钢有限公司 Argon blowing refining method in pouring process of composite air brick and continuous casting ladle
CN114199742A (en) * 2021-12-30 2022-03-18 鞍山市和丰耐火材料有限公司 High-temperature detection system and method for ventilation capacity of tundish breathable water gap
CN114905014B (en) * 2022-05-30 2024-02-20 达力普石油专用管有限公司 Method for reducing nitrogen increment of molten steel in continuous casting process
CN115026273B (en) * 2022-06-16 2023-10-13 莱芜钢铁集团银山型钢有限公司 Ladle argon blowing nozzle pocket brick and argon blowing metallurgical method thereof
CN114891949B (en) * 2022-06-16 2023-10-24 山东钢铁股份有限公司 Sliding tapping hole of converter and whole-course tapping slag blocking method
CN115198057B (en) * 2022-06-16 2023-11-21 山东钢铁股份有限公司 Molten steel refining method of steel for ocean platform below EH36

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0737535A1 (en) * 1995-04-10 1996-10-16 Didier-Werke Ag Immersed metallurgical pouring nozzles
CN104028739A (en) * 2014-06-18 2014-09-10 莱芜钢铁集团有限公司 Ladle gas-permeable upper nozzle pocket block and nozzle slag entrapment control method implemented by same
CN206047077U (en) * 2016-08-04 2017-03-29 山东钢铁股份有限公司 A kind of continuous casting production permeable-gas ceramicses pipe filling pipe end brick cup
CN109719290A (en) * 2019-02-20 2019-05-07 山东钢铁股份有限公司 A kind of ladle circular seam type ventilating filling pipe end brick cup and its Argon metallurgical method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9212953D0 (en) 1992-06-18 1992-07-29 Foseco Int Purifying molten metal
CN202539559U (en) * 2011-12-15 2012-11-21 北京利尔高温材料股份有限公司 Special steel antiflocculating slit pinhole ventilation submerged nozzle
CN203156027U (en) * 2013-03-06 2013-08-28 济南鲁东耐火材料有限公司 Anti-clogging air supply system for steel ladle purging plug brick
RU134092U1 (en) * 2013-08-08 2013-11-10 Компания с ограниченной ответственностью Пуянг Рефракториз (групп) Ко., ЛТД BUCKET FOR BOTTOM METAL BLOWING WITH GAS IN THE DUCK
DE202015001370U1 (en) * 2014-03-12 2015-03-03 Sheffield Hi-Tech Refractories Germany Gmbh Plug in a distribution vessel
CN103862028B (en) 2014-03-14 2016-04-20 莱芜钢铁集团有限公司 A kind of purging upper nozzle for continuous casting tundish brick cup and installation method thereof
CN204396811U (en) * 2015-02-01 2015-06-17 濮阳濮耐高温材料（集团）股份有限公司 A kind of ceramic rod air curtain barricade wall
CN106041044B (en) 2016-08-04 2018-09-07 山东钢铁股份有限公司 A kind of continuous casting production permeable-gas ceramics pipe filling pipe end brick cup and its ar blowing refining method
JP6974115B2 (en) * 2017-10-27 2021-12-01 Ｊｆｅスチール株式会社 Refractory for gas blowing nozzle
CN209830257U (en) * 2019-02-20 2019-12-24 山东钢铁股份有限公司 Argon blowing metallurgical device utilizing steel ladle dispersion ring breathable upper nozzle pocket brick
CN209736625U (en) * 2019-02-20 2019-12-06 山东钢铁股份有限公司 ladle circumferential weld type breathable upper nozzle pocket brick and argon blowing metallurgical device
CN111774560B (en) * 2020-07-25 2022-03-11 莱芜钢铁集团银山型钢有限公司 LF refining ladle microporous ceramic rod breathable upper nozzle pocket brick and argon blowing control method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0737535A1 (en) * 1995-04-10 1996-10-16 Didier-Werke Ag Immersed metallurgical pouring nozzles
CN104028739A (en) * 2014-06-18 2014-09-10 莱芜钢铁集团有限公司 Ladle gas-permeable upper nozzle pocket block and nozzle slag entrapment control method implemented by same
CN206047077U (en) * 2016-08-04 2017-03-29 山东钢铁股份有限公司 A kind of continuous casting production permeable-gas ceramicses pipe filling pipe end brick cup
CN109719290A (en) * 2019-02-20 2019-05-07 山东钢铁股份有限公司 A kind of ladle circular seam type ventilating filling pipe end brick cup and its Argon metallurgical method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022022277A1 *

Also Published As

Publication number Publication date
JP7299430B2 (en) 2023-06-27
JP2023515903A (en) 2023-04-14
CN111774560B (en) 2022-03-11
EP4134186A1 (en) 2023-02-15
WO2022022277A1 (en) 2022-02-03
CN111774560A (en) 2020-10-16
EP4134186B1 (en) 2024-10-09

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