KR970043107A - How to remove slag in ladle - Google Patents

How to remove slag in ladle Download PDF

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Publication number
KR970043107A
KR970043107A KR1019950046819A KR19950046819A KR970043107A KR 970043107 A KR970043107 A KR 970043107A KR 1019950046819 A KR1019950046819 A KR 1019950046819A KR 19950046819 A KR19950046819 A KR 19950046819A KR 970043107 A KR970043107 A KR 970043107A
Authority
KR
South Korea
Prior art keywords
slag
ladle
cac
remove slag
present
Prior art date
Application number
KR1019950046819A
Other languages
Korean (ko)
Other versions
KR100226918B1 (en
Inventor
김봉조
이광근
선민기
Original Assignee
김종진
포항종합제철 주식회사
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 김종진, 포항종합제철 주식회사 filed Critical 김종진
Priority to KR1019950046819A priority Critical patent/KR100226918B1/en
Publication of KR970043107A publication Critical patent/KR970043107A/en
Application granted granted Critical
Publication of KR100226918B1 publication Critical patent/KR100226918B1/en

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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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
    • 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
    • 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1545—Equipment for removing or retaining slag
    • F27D3/1554—Equipment for removing or retaining slag for removing the slag from the surface of the melt

Abstract

본 발명은 제강공정에서 발생되는 레이들내의 슬래그 제거방법에 관한 것이며, 그 목적은 슬래그 포밍(foaming)현상을 이용하여 슬래그 제거효율을 높일수 있는 레이들내의 슬래그 제거방법을 제공하고자 하는데 있다. 상기 목적을 달성하기 위한 본 발명은 전로에서 용강과 함께 레이들내로 유출되는 슬래그 제거하는 방법에 있어서, 유출된 슬래그 일측 상부면이 레이들의 상단까지 도달되도록 레이들을 경동시킨 후, 입자크기가 3㎜이하인 CaC2를 상기 슬래그 중량에 대하여 12-20%범위에서 상기 슬래그의 내부로 투입함을 특징으로 하는 레이들내의 슬래그 제거방법에 관한 것을 그 기술적 요지로 한다.The present invention relates to a method for removing slag in a ladle generated in a steelmaking process, and an object thereof is to provide a method for removing slag in a ladle by using slag foaming. In order to achieve the above object, the present invention provides a method for removing slag that flows into a ladle together with molten steel in a converter, and after tilting the ladle so that one side surface of the spilled slag reaches the top of the ladle, the particle size is 3 mm. The technical gist of the slag removal method in a ladle characterized by introducing CaC 2 below into the slag in the range of 12-20% with respect to the slag weight.

Description

레이들 내의 슬래그 제거방법How to remove slag in ladle

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 (가)는 종래의 슬래그 간의 반응을 나타내는 모식도4 is a schematic diagram showing the reaction between conventional slag

(나) 및 (다)는 종래의 슬래그 제어방법을 설명하기 위한 모식도,(B) and (C) are schematic diagrams for explaining the conventional slag control method,

제5도는 본 발명에 의한 슬래그 제거방법을 설명하기 위한 모식도5 is a schematic diagram for explaining a slag removal method according to the present invention.

Claims (2)

전로에서 용강과 함께 레이들내로 유출되는 슬래그 제거하는 방법에 있어서, 유출된 슬래그 일측 상부면이 레이들의 상단까지 도달되도록 레이들을 경동시킨 후, 입자크기가 3㎜ 이하인 CaC2를 상기 슬래그 중량에 대하여 12-20%범위에서 상기 슬래그의 내부로 투입함을 특징으로 하는 레이들내의 슬래그 제거방법In the method for removing the slag flowing into the ladle with molten steel in the converter, after tilting the ladle so that the top surface of the spilled slag reaches the upper end of the ladle, CaC 2 having a particle size of 3 mm or less with respect to the slag weight Slag removal method in the ladle, characterized in that the input into the slag in the range of 12-20% 제1항에 있어서, 상기 CaC2투입후 슬래그 포밍(foaming)현상이 발생하는 동안 스키머(skimmer)를 사용함을 특징으로 하는 레이들내의 슬래그 제거방법The method of claim 1, wherein a skimmer is used during slag foaming after CaC 2 is applied.
KR1019950046819A 1995-12-05 1995-12-05 Slag removing method of ladle KR100226918B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950046819A KR100226918B1 (en) 1995-12-05 1995-12-05 Slag removing method of ladle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950046819A KR100226918B1 (en) 1995-12-05 1995-12-05 Slag removing method of ladle

Publications (2)

Publication Number Publication Date
KR970043107A true KR970043107A (en) 1997-07-26
KR100226918B1 KR100226918B1 (en) 1999-10-15

Family

ID=19437862

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950046819A KR100226918B1 (en) 1995-12-05 1995-12-05 Slag removing method of ladle

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KR (1) KR100226918B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101260055B1 (en) 2007-12-31 2013-04-30 주식회사 포스코 Method for Depressing Slag Foaming in Vacuum Tank Degasser
KR20160022189A (en) 2014-08-19 2016-02-29 김희섭 One-off cup having a collapsible cap of itself
KR102122635B1 (en) * 2017-12-26 2020-06-12 현대제철 주식회사 Refining method of molten steel

Also Published As

Publication number Publication date
KR100226918B1 (en) 1999-10-15

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