KR950014322A - How to remove the converter body lance body now - Google Patents

How to remove the converter body lance body now Download PDF

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Publication number
KR950014322A
KR950014322A KR1019930024798A KR930024798A KR950014322A KR 950014322 A KR950014322 A KR 950014322A KR 1019930024798 A KR1019930024798 A KR 1019930024798A KR 930024798 A KR930024798 A KR 930024798A KR 950014322 A KR950014322 A KR 950014322A
Authority
KR
South Korea
Prior art keywords
lance
converter
remove
molten iron
now
Prior art date
Application number
KR1019930024798A
Other languages
Korean (ko)
Other versions
KR950012407B1 (en
Inventor
김용식
정준양
Original Assignee
조말수
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 조말수, 포항종합제철 주식회사 filed Critical 조말수
Priority to KR1019930024798A priority Critical patent/KR950012407B1/en
Publication of KR950014322A publication Critical patent/KR950014322A/en
Application granted granted Critical
Publication of KR950012407B1 publication Critical patent/KR950012407B1/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
    • C21C5/46—Details or accessories
    • C21C5/4693—Skull removal; Cleaning of the converter mouth
    • 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
    • C21C5/4606—Lances or injectors
    • 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
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/008—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using fluids or gases, e.g. blowers, suction units
    • 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
    • C21C5/4606—Lances or injectors
    • C21C2005/4626—Means for cooling, e.g. by gases, fluids or liquids

Landscapes

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

Abstract

본 발명은 정련작업 진행시 전로내의 용선상부에 산소를 고압으로 취입하는 랜스본체 표면의 지금을 효과적으로 제거하여, 취련작업의 원활함과 노동부하, 원가의 최소화를 도모하게 된 전로상취 랜드본체의 지금제거 방법을 제공하기 위한 것이다.The present invention effectively removes the current on the surface of the lance body that blows oxygen at a high pressure on the molten iron in the converter during the refining process, thereby facilitating the smoothing work, minimizing labor load and cost, It is to provide a removal method.

이를 위해 본 발명에서는 전로정련작업의 진행시에 용선조건은 1600이상의 크린랜스지수로 하고, 취련종료후 상승하는 랜스본체에 냉각수를 분사함으로서 급속냉각에 의해 크랙 발생된 지금이 자중에 의해 탈락제거 되도록 한 것이다.To this end, in the present invention, the molten iron condition during the converter refining operation is more than 1600 clean lance index, by spraying the cooling water to the rising lance main body after the termination of the blow so that the cracks generated by rapid cooling are eliminated by self-weight It is.

Description

전로 상취 랜스본체의 지금제거방법How to remove the converter body lance body now

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

제1도는 일반적인 전로의 정련작업 설명을 위한 개략 구성도,1 is a schematic configuration diagram for explaining the refining work of the general converter,

제2도는 랜스본체에 지금이 부착된 상태의 예시도로서 (가)는 사진, (나)는 설명도,2 is an illustration of the state attached to the lance main body (a) is a photograph, (b) is an explanatory diagram,

제3도의 (가)(나)는 본 발명을 설명하기 위한 실험 그래프.(A) and (b) of FIG. 3 are experimental graphs for explaining the present invention.

Claims (1)

전로정련작업을 진행함에 있어서, 용선조건은 1600이상의 크린랜스지수로 하고, 취련종료후 상승하는 랜스본체에 냉각수를 분사시켜 급속냉각에 의해 크랙발생된 지금이 지중에 의해 탈락되도록 함을 특징으로 하는 전로상취 랜스본체의 지금제거방법.In the converter refining operation, the molten iron condition is a clean lance index of 1600 or more, and after the end of the blow spraying the cooling water to the rising lance main body, the crack generated by the rapid cooling is eliminated by the ground How to remove the converter body lance body now. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930024798A 1993-11-19 1993-11-19 Removal method of lance dregs KR950012407B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930024798A KR950012407B1 (en) 1993-11-19 1993-11-19 Removal method of lance dregs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930024798A KR950012407B1 (en) 1993-11-19 1993-11-19 Removal method of lance dregs

Publications (2)

Publication Number Publication Date
KR950014322A true KR950014322A (en) 1995-06-15
KR950012407B1 KR950012407B1 (en) 1995-10-17

Family

ID=19368555

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930024798A KR950012407B1 (en) 1993-11-19 1993-11-19 Removal method of lance dregs

Country Status (1)

Country Link
KR (1) KR950012407B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100428626B1 (en) * 2001-12-24 2004-04-28 주식회사 케이에스티 Inorganic coating for preventing the adhesion of molten steel
KR100779716B1 (en) * 2001-12-24 2007-11-26 주식회사 포스코 An Apparatus for Eliminating Useless Metal covering Surface of Molten Metal contained in Ladle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100428626B1 (en) * 2001-12-24 2004-04-28 주식회사 케이에스티 Inorganic coating for preventing the adhesion of molten steel
KR100779716B1 (en) * 2001-12-24 2007-11-26 주식회사 포스코 An Apparatus for Eliminating Useless Metal covering Surface of Molten Metal contained in Ladle

Also Published As

Publication number Publication date
KR950012407B1 (en) 1995-10-17

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