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KR970043108A - Residual slag amount control method for suppressing slope occurrence - Google Patents

Residual slag amount control method for suppressing slope occurrence Download PDF

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Publication number
KR970043108A
KR970043108A KR1019950055004A KR19950055004A KR970043108A KR 970043108 A KR970043108 A KR 970043108A KR 1019950055004 A KR1019950055004 A KR 1019950055004A KR 19950055004 A KR19950055004 A KR 19950055004A KR 970043108 A KR970043108 A KR 970043108A
Authority
KR
South Korea
Prior art keywords
slag
amount
ton
converter
residual
Prior art date
Application number
KR1019950055004A
Other languages
Korean (ko)
Other versions
KR100225249B1 (en
Inventor
권원석
Original Assignee
김종진
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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, 신창식, 재단법인 산업과학기술연구소 filed Critical 김종진
Priority to KR1019950055004A priority Critical patent/KR100225249B1/en
Publication of KR970043108A publication Critical patent/KR970043108A/en
Application granted granted Critical
Publication of KR100225249B1 publication Critical patent/KR100225249B1/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
    • 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
    • C21C5/44—Refractory linings
    • C21C5/441—Equipment used for making or repairing linings
    • 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
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • 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
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D2021/0057—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects
    • F27D2021/0085—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects against molten metal, e.g. leakage or splashes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

전로의 노체 수면연장을 우해 매 취련종료시 실시하는 슬래그 코팅을 위해 잔류슬래그를 활용함으로서, 발생빈도가 더욱 많아지고 있는 슬로핑을 억제하기 위해 용선실리콘을 노체수명에 따라 잔류슬래그량을 조절하여 슬로핑 발생을억제하는 슬로핑 발생억제를 위한 잔류 슬래그량 조절방법에 관한 것으로, 전로의 취련작업시 잔류 슬래그량과 취련작업시 발생된 슬래그량의 합을 노 내용적을 나눈 값을 0.08톤/㎥ 이하로 하고, 전로의 용탕을 출탕한 후 슬래그 코팅용으로 잔류시켜야 할 슬래그량은 다음 식에 의하여 구하는 것을 특징으로 하는 슬로핑 발생억제를 위한 잔류 슬래그량 조절방법.Residual slag is used for slag coating at the end of each treatment period to improve the furnace surface of the converter, so that the molten silicon is controlled by adjusting the amount of residual slag according to the age of the body in order to suppress the more frequent occurrence of the slag. The present invention relates to a method of controlling the amount of residual slag for suppressing the occurrence of slopes, wherein the sum of the residual slag amount in the converter's blow job and the amount of slag generated during the blow job is divided by the furnace content to 0.08 ton / ㎥ or less. And the amount of slag to be retained for slag coating after tapping the molten metal of the converter is obtained by the following equation.

전로의 용탕을 출탕후 슬래그 코팅용 잔류 슬래그량 ≤0.08톤/㎥ × 노체내용적(㎤)-취련중 발생한 슬래그량Residual slag amount for slag coating after tapping the molten metal in the converter ≤0.08 ton / ㎥ × Furnace content (cm3)-Slag amount generated during the blowing

WS : 슬래그량(ton)WS: slag amount (ton)

Whm : 용선량(ton)Whm: Allowance (ton)

[%SI] : 용선중의 실리콘농도[% SI]: Silicon concentration in molten iron

Wcp : 냉선량(ton)Wcp: cold dose (ton)

Wore : 광석량(ton)Wore: Ore (ton)

Description

슬로핑 발생억제를 위한 잔류 슬래그량 조절방법Residual slag amount control method for suppressing slope occurrence

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

제1도는 본 발명이 적용되는 전로의 구조를 나타내는 단면도,1 is a cross-sectional view showing the structure of the converter to which the present invention is applied,

제2도는 본 발명의 용선함량에 따른 전로내 발생 슬래그량을 나타낸 그래프2 is a graph showing the amount of slag generated in the converter according to the molten iron content of the present invention

Claims (1)

전로의 취련작업시 잔류 슬래그량과 취련작업시 발생된 슬래그량의 합을 노 내용적으로 나눈 값을 0.08톤/㎥ 이하로 하고, 전로의 용탕을 출탕한 후 슬래그 코팅용으로 잔류시켜야 할 슬래그량은 다음 식에 의하여 구하는 것을 특징으로 하는 슬로핑 발생억제를 위한 잔류 슬래그량 조절방법.The sum of the amount of residual slag and the amount of slag generated during the drilling operation of the converter is divided into the furnace contents of 0.08 ton / ㎥ or less, and the amount of slag to be retained for slag coating after tapping the converter's molten metal. Residual slag amount control method for suppressing the slope generation, characterized in that obtained by the following equation. 전로의 용탕을 출탕후 슬래그 코팅용 잔류 슬래그량 ≤0.08톤/㎥ × 노체내용적(㎤)-취련중 발생한 슬래그량Residual slag amount for slag coating after tapping the molten metal in the converter ≤0.08 ton / ㎥ × Furnace content (cm3)-Slag amount generated during the blowing WS : 슬래그량(ton)WS: slag amount (ton) Whm : 용선량(ton)Whm: Allowance (ton) [%SI] : 용선중의 실리콘농도[% SI]: Silicon concentration in molten iron Wcp : 냉선량(ton)Wcp: cold dose (ton) Wore : 광석량(ton)Wore: Ore (ton)
KR1019950055004A 1995-12-22 1995-12-22 Remaining slag control method of of slopping control KR100225249B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950055004A KR100225249B1 (en) 1995-12-22 1995-12-22 Remaining slag control method of of slopping control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950055004A KR100225249B1 (en) 1995-12-22 1995-12-22 Remaining slag control method of of slopping control

Publications (2)

Publication Number Publication Date
KR970043108A true KR970043108A (en) 1997-07-26
KR100225249B1 KR100225249B1 (en) 1999-10-15

Family

ID=19443490

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950055004A KR100225249B1 (en) 1995-12-22 1995-12-22 Remaining slag control method of of slopping control

Country Status (1)

Country Link
KR (1) KR100225249B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100470066B1 (en) * 2002-12-06 2005-02-05 주식회사 포스코 Method of depressing slop by calculating and controlling the retained slag in the oxygen converter after tapping

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100518320B1 (en) * 2001-12-21 2005-10-04 주식회사 포스코 A method of weighing the Slag coating method of the basic oxyzen converter by using the retained slag weighing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100470066B1 (en) * 2002-12-06 2005-02-05 주식회사 포스코 Method of depressing slop by calculating and controlling the retained slag in the oxygen converter after tapping

Also Published As

Publication number Publication date
KR100225249B1 (en) 1999-10-15

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