EP4134186A4 - AIR-PERMEABLE TOP NOZZLE WELL BLOCK WITH MICROPOROUS CERAMIC ROD FOR LF REFINING LAdle, AND ASSOCIATED ARGON BLOWING CONTROL METHOD - Google Patents

AIR-PERMEABLE TOP NOZZLE WELL BLOCK WITH MICROPOROUS CERAMIC ROD FOR LF REFINING LAdle, AND ASSOCIATED ARGON BLOWING CONTROL METHOD 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.)
Pending
Application number
EP21849887.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4134186A1 (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
Pending legal-status Critical Current

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 AIR-PERMEABLE TOP NOZZLE WELL BLOCK WITH MICROPOROUS CERAMIC ROD FOR LF REFINING LAdle, AND ASSOCIATED ARGON BLOWING CONTROL METHOD Pending EP4134186A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010726676.4A CN111774560B (zh) 2020-07-25 2020-07-25 一种lf精炼钢包微孔陶瓷棒透气上水口座砖及其吹氩控制方法
PCT/CN2021/106078 WO2022022277A1 (zh) 2020-07-25 2021-07-13 一种lf精炼钢包微孔陶瓷棒透气上水口座砖及其吹氩控制方法

Publications (2)

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

Family

ID=72763337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21849887.1A Pending EP4134186A4 (en) 2020-07-25 2021-07-13 AIR-PERMEABLE TOP NOZZLE WELL BLOCK WITH MICROPOROUS CERAMIC ROD FOR LF REFINING LAdle, AND ASSOCIATED ARGON BLOWING CONTROL METHOD

Country Status (4)

Country Link
EP (1) EP4134186A4 (ja)
JP (1) JP7299430B2 (ja)
CN (1) CN111774560B (ja)
WO (1) WO2022022277A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111774560B (zh) * 2020-07-25 2022-03-11 莱芜钢铁集团银山型钢有限公司 一种lf精炼钢包微孔陶瓷棒透气上水口座砖及其吹氩控制方法
CN113444858A (zh) * 2021-06-24 2021-09-28 莱芜钢铁集团银山型钢有限公司 一种用于钢包透气上水口座砖的吹氩系统及其安装方法
CN113523211B (zh) * 2021-07-12 2022-04-29 莱芜钢铁集团银山型钢有限公司 钢包透气上水口座砖吹氩进气管路的漏气检测及吹氩流量修正方法
CN114433829B (zh) * 2021-12-28 2024-05-24 莱芜钢铁集团银山型钢有限公司 一种复合型透气砖及连铸钢包浇注过程中吹氩精炼方法
CN114905014B (zh) * 2022-05-30 2024-02-20 达力普石油专用管有限公司 一种降低连铸过程中钢液增氮量的方法
CN115026273B (zh) * 2022-06-16 2023-10-13 莱芜钢铁集团银山型钢有限公司 一种钢包吹氩水口座砖及其吹氩冶金方法
CN115198057B (zh) * 2022-06-16 2023-11-21 山东钢铁股份有限公司 一种eh36以下海洋平台用钢的钢水精炼方法
CN114891949B (zh) * 2022-06-16 2023-10-24 山东钢铁股份有限公司 一种转炉滑动出钢口及全程出钢挡渣方法

Citations (4)

* Cited by examiner, † Cited by third party
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EP0737535A1 (en) * 1995-04-10 1996-10-16 Didier-Werke Ag Immersed metallurgical pouring nozzles
CN104028739A (zh) * 2014-06-18 2014-09-10 莱芜钢铁集团有限公司 一种钢包透气上水口座砖及其控制水口卷渣的方法
CN206047077U (zh) * 2016-08-04 2017-03-29 山东钢铁股份有限公司 一种连铸中间包透气陶瓷管上水口座砖
CN109719290A (zh) * 2019-02-20 2019-05-07 山东钢铁股份有限公司 一种钢包环缝式透气上水口座砖及其吹氩冶金方法

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 (zh) * 2011-12-15 2012-11-21 北京利尔高温材料股份有限公司 特种钢防絮狭缝针孔透气浸入式水口
CN203156027U (zh) * 2013-03-06 2013-08-28 济南鲁东耐火材料有限公司 一种钢包透气砖防堵塞供气系统
RU134092U1 (ru) * 2013-08-08 2013-11-10 Компания с ограниченной ответственностью Пуянг Рефракториз (групп) Ко., ЛТД Фурма для донной продувки металла газами в ковше
DE202015001370U1 (de) * 2014-03-12 2015-03-03 Sheffield Hi-Tech Refractories Germany Gmbh Stopfen in einem Verteilergefäß
CN103862028B (zh) 2014-03-14 2016-04-20 莱芜钢铁集团有限公司 一种连铸中间包透气上水口座砖及其安装方法
CN204396811U (zh) * 2015-02-01 2015-06-17 濮阳濮耐高温材料（集团）股份有限公司 一种陶瓷棒气幕挡墙
CN106041044B (zh) 2016-08-04 2018-09-07 山东钢铁股份有限公司 一种连铸中间包透气陶瓷管上水口座砖及其吹氩精炼方法
JP6974115B2 (ja) * 2017-10-27 2021-12-01 Ｊｆｅスチール株式会社 ガス吹込みノズル用耐火物
CN209830257U (zh) * 2019-02-20 2019-12-24 山东钢铁股份有限公司 一种利用钢包弥散环透气上水口座砖的吹氩冶金装置
CN209736625U (zh) * 2019-02-20 2019-12-06 山东钢铁股份有限公司 一种钢包环缝式透气上水口座砖及吹氩冶金装置
CN111774560B (zh) * 2020-07-25 2022-03-11 莱芜钢铁集团银山型钢有限公司 一种lf精炼钢包微孔陶瓷棒透气上水口座砖及其吹氩控制方法

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 (zh) * 2014-06-18 2014-09-10 莱芜钢铁集团有限公司 一种钢包透气上水口座砖及其控制水口卷渣的方法
CN206047077U (zh) * 2016-08-04 2017-03-29 山东钢铁股份有限公司 一种连铸中间包透气陶瓷管上水口座砖
CN109719290A (zh) * 2019-02-20 2019-05-07 山东钢铁股份有限公司 一种钢包环缝式透气上水口座砖及其吹氩冶金方法

Non-Patent Citations (1)

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

Also Published As

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

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