WO2009002105A9 - Apparatus for preventing nozzle clogging, apparatus for continuous casting having the same, method for preventing nozzle clogging and method for continuous casting using the same - Google Patents

Apparatus for preventing nozzle clogging, apparatus for continuous casting having the same, method for preventing nozzle clogging and method for continuous casting using the same Download PDF

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Publication number
WO2009002105A9
WO2009002105A9 PCT/KR2008/003672 KR2008003672W WO2009002105A9 WO 2009002105 A9 WO2009002105 A9 WO 2009002105A9 KR 2008003672 W KR2008003672 W KR 2008003672W WO 2009002105 A9 WO2009002105 A9 WO 2009002105A9
Authority
WO
WIPO (PCT)
Prior art keywords
casting
nozzle clogging
same
nozzle
continuous casting
Prior art date
Application number
PCT/KR2008/003672
Other languages
French (fr)
Other versions
WO2009002105A1 (en
Inventor
Oh Duck Kwon
Ki Hoon Kim
Seung Gyou Kang
Kyoung Mok Lee
Original Assignee
Posco
Oh Duck Kwon
Ki Hoon Kim
Seung Gyou Kang
Kyoung Mok Lee
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 Posco, Oh Duck Kwon, Ki Hoon Kim, Seung Gyou Kang, Kyoung Mok Lee filed Critical Posco
Priority to EP08778377A priority Critical patent/EP2170543A4/en
Publication of WO2009002105A1 publication Critical patent/WO2009002105A1/en
Publication of WO2009002105A9 publication Critical patent/WO2009002105A9/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/117—Refining the metal by treating with gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • 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
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

The present invention relates to an apparatus for preventing nozzle clogging, which rapidly estimates the degree of nozzle clogging when molten steel is supplied from a tundish to a mold and then controls a casting state according to the estimation result, an apparatus for continuous casting having the same, a method for preventing nozzle clogging and a method for continuous casting using the same. The present invention includes measuring backpressure of inert gas supplied to a casting nozzle in real time; and calculating a nozzle status index from the measured actual backpressure. There are effects in that it is possible to rapidly and accurately estimate the location and degree of nozzle clogging based on a backpressure change of inert gas supplied to a casting nozzle, to detect leakage of the inert gas, and to improve a casting yield and quality of strands by suitably controlling inert gas supplied to a casting nozzle.
PCT/KR2008/003672 2007-06-26 2008-06-26 Apparatus for preventing nozzle clogging, apparatus for continuous casting having the same, method for preventing nozzle clogging and method for continuous casting using the same WO2009002105A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08778377A EP2170543A4 (en) 2007-06-26 2008-06-26 Apparatus for preventing nozzle clogging, apparatus for continuous casting having the same, method for preventing nozzle clogging and method for continuous casting using the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070062651A KR20080113771A (en) 2007-06-26 2007-06-26 Apparatus for preventing from nozzle clogging, apparatus for continuous casting having the same, method for preventing from nozzle clogging and continuous casting method using it
KR10-2007-0062651 2007-06-26

Publications (2)

Publication Number Publication Date
WO2009002105A1 WO2009002105A1 (en) 2008-12-31
WO2009002105A9 true WO2009002105A9 (en) 2009-02-19

Family

ID=40185823

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/003672 WO2009002105A1 (en) 2007-06-26 2008-06-26 Apparatus for preventing nozzle clogging, apparatus for continuous casting having the same, method for preventing nozzle clogging and method for continuous casting using the same

Country Status (3)

Country Link
EP (1) EP2170543A4 (en)
KR (1) KR20080113771A (en)
WO (1) WO2009002105A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101109450B1 (en) * 2010-04-30 2012-02-09 현대제철 주식회사 Method for estimating clogging degree of submerged entry nozzle and method for estimating time of changing submerged entry nozzle
KR101246522B1 (en) * 2010-10-27 2013-03-26 현대제철 주식회사 Method and Apparatus for purging of a exchange part for ladle
KR101320342B1 (en) * 2011-09-28 2013-10-23 현대제철 주식회사 Device for extracting inclusion entrapped slab and method thereof
KR101412536B1 (en) * 2012-01-31 2014-06-26 현대제철 주식회사 Device for forecasting number of continuous-continuous casting on continuous casting process and method therefor
KR101400045B1 (en) * 2012-04-26 2014-05-30 현대제철 주식회사 Method for forecasting possibility of additional continuous-continuous casting on continuous casting process
KR101581550B1 (en) * 2014-04-29 2015-12-31 현대제철 주식회사 Method for predicting distribution of gas in molten steel
JP6515388B2 (en) * 2015-10-02 2019-05-22 日本製鉄株式会社 Upper nozzle for continuous casting
KR102122656B1 (en) * 2018-09-27 2020-06-12 현대제철 주식회사 Apparatus for predicting gas on the pipeline leakage in continuous casting process and method therefor
CN110883332B (en) * 2019-11-21 2023-08-15 中冶赛迪技术研究中心有限公司 Method and system for online detection of nozzle blockage
CN112157240B (en) * 2020-09-30 2022-03-22 首钢集团有限公司 Method for detecting blockage of submerged nozzle of crystallizer
CN114103103B (en) * 2021-11-23 2023-09-29 栗荣安 A3D printer for printing from facial moulding product of subsides formula nasal part

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112253A (en) * 1993-10-14 1995-05-02 Nippon Steel Corp Device for controlling flow rate of inert gas in continuous casting apparatus
KR20000045533A (en) * 1998-12-30 2000-07-15 이구택 Method for preventing tundish nozzle from being clogged on continuous casting
DE102004057381A1 (en) * 2004-11-26 2006-06-01 Heraeus Electro-Nite International N.V. Method for controlling the flow and bottom outlet for a metallurgical vessel

Also Published As

Publication number Publication date
WO2009002105A1 (en) 2008-12-31
EP2170543A4 (en) 2012-07-25
KR20080113771A (en) 2008-12-31
EP2170543A1 (en) 2010-04-07

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