KR960001159A - Method for manufacturing low and low carbon ferro manganese - Google Patents

Method for manufacturing low and low carbon ferro manganese Download PDF

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Publication number
KR960001159A
KR960001159A KR1019940014385A KR19940014385A KR960001159A KR 960001159 A KR960001159 A KR 960001159A KR 1019940014385 A KR1019940014385 A KR 1019940014385A KR 19940014385 A KR19940014385 A KR 19940014385A KR 960001159 A KR960001159 A KR 960001159A
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South Korea
Prior art keywords
manganese
carbon ferro
low
oxidizer
quicklime
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KR1019940014385A
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Korean (ko)
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KR970009513B1 (en
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박찬수
송윤호
조중욱
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한신혁
동부산업 주식회사
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    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • 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
    • C21C5/4673—Measuring and sampling devices
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese

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

Abstract

본 발명은 중저탄소 훼로망간의 제조방법에 관한 것으로, 좀 더 상세하게는 종래의 전로법을 개량하여 용탕침투 깊이/전체 용탕 깊이를 0.3-0.5로 유지하여 온도가 조절되도록 상취가스를 분사하면서 생석회일부 및 고탄소 훼로 망간 슬랙 소량을 산화기에서 투입하고, 산화기 말기에 생석회 나머지를 투입한 후, 튜이어의 위치를 전체용탕 높이의 0.2-0.3 범위로 유지하여 고탄소 훼로망간을 환원시켜 정련하므로써 종래의 중저탄소 훼로망간을 고수율로 회수할 수 있는 중저탄소 훼로망간의 제조방법에 관한 것이다.The present invention relates to a method for producing low and low carbon ferro-manganese, and more specifically, by improving the conventional converter method to maintain the molten metal penetration depth / total melt depth to 0.3-0.5 while spraying the fresh gas to control the temperature of quicklime lime After a small amount of manganese slack is added to the oxidizer, and the remainder of quicklime is added to the end of the oxidizer, the position of the tuber is maintained within the range of 0.2-0.3 of the total melt height to reduce the high carbon ferro-manganese. Therefore, the present invention relates to a method for producing a low to low carbon ferro manganese, which can recover a conventional low to low carbon ferro manganese.

Description

중저탄소 훼로망간의 제조방법Method for manufacturing low and low carbon ferro manganese

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 종래의 실리사이드법 중저탄소 훼로망간 제조방법의 공정도이며1 is a process diagram of a conventional silicide method of manufacturing a low to low carbon fermanganese

제2도는 본 발명에 따른 공정도이다.2 is a process diagram according to the present invention.

Claims (7)

상취와 황취가 동시에 가능한 전로내에 고탄소 훼로망간 용탕을 장입하여 복합취련에 의하여 고탄소 훼로망간을 중저탄소 훼로망간으로 정련하는데 있어서, 용탕 침투 깊이/전체 용탕 깊이를 0.3-0.5로 유지하여 온도가 조절되도록 상취가스를 분사하면서 생석회일부 및 고탄소 훼로 망간 슬랙 소량을 산화기에서 투입하고, 산화기 말기에 생석회 나머지를 투입한 후, 튜이어의 위치를 전체용탕 높이의 0.2-0.3 범위로 유지하여 고탄소 훼로망간을 환원시켜 정련함을 특징으로 하는 중저탄소 훼로망간의 제조방법.In refining high-carbon ferro-manganese into medium-low-carbon ferro-manganese by charging high-carbon ferro-manganese in the converter which can be both odor and deodorization at the same time, maintaining the penetration depth / total melt depth at 0.3-0.5 After spraying the fresh gas to adjust the amount of manganese lime and small amount of manganese slag into the high-carbon furnace, the remaining amount of lime is added to the end of the oxidizer, and then the position of the tuber is maintained within the range of 0.2-0.3 of the height of the entire melt. A method for producing low and low carbon ferro manganese, characterized by refining by reducing high carbon ferro manganese. 제1항에 있어서, 상기 생석회의 총 투입량이 용탕의 10∼20중량%임을 특징으로 하는 중저탄소 훼로망간의 제조방법.The method of claim 1, wherein the total input amount of quicklime is 10 to 20% by weight of the molten metal. 제1항 또는 제2항에 있어서, 상기 생석회가 산화기에 생석회 총 투입량의 ⅓ 및 산화기 말기에 생석회 총 투입량의 ⅔가 사용됨을 특징으로 하는 중저탄소 훼로망간의 제조방법.3. The method of claim 1 or 2, wherein the quicklime is used in the oxidizer in the total amount of quicklime and the end of the oxidizer in the total amount of quicklime is used. 제1항에 있어서, 상기 고탄소 훼로망간 슬랙이 용탕의 5∼10중량%임을 특징으로 하는 중저탄소 훼로망간의 제조방법.The method of claim 1, wherein the high-carbon ferro-manganese slag is 5 to 10% by weight of the molten metal. 제1항에 있어서, 상기 온도가 1550∼1750℃임을 특징으로 하는 중저탄소 훼로망간의 제조방법.The method of claim 1, wherein the temperature is 1550 ~ 1750 ℃. 제1항에 있어서, 상기 고탄소 훼로망간의 산화 및 환원시 횡취 튜이어가 사용됨을 특징으로 하는 중저탄소 훼로망간의 제조방법.The method of claim 1, wherein a steep tuyer is used for the oxidation and reduction of the high carbon ferro manganese. 제1항에 있어서, 산화기 말기에 생석회 투입시 백운석 및 형석을 단독 또는 혼합물의 형태로 용탕에 대하여 각각 3∼7중량%로 사용함을 특징으로 하는 중저탄소 훼로망간의 제조방법.The method of claim 1, wherein dolomite and fluorspar are used at the end of the oxidizer in the range of 3 to 7% by weight, respectively, in the form of a single or a mixture of molten lime. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940014385A 1994-06-23 1994-06-23 Process for preparing low-carbon ferromanganese KR970009513B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940014385A KR970009513B1 (en) 1994-06-23 1994-06-23 Process for preparing low-carbon ferromanganese

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Application Number Priority Date Filing Date Title
KR1019940014385A KR970009513B1 (en) 1994-06-23 1994-06-23 Process for preparing low-carbon ferromanganese

Publications (2)

Publication Number Publication Date
KR960001159A true KR960001159A (en) 1996-01-25
KR970009513B1 KR970009513B1 (en) 1997-06-14

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KR1019940014385A KR970009513B1 (en) 1994-06-23 1994-06-23 Process for preparing low-carbon ferromanganese

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100363608B1 (en) * 2000-12-26 2002-12-05 동부한농화학 주식회사 Method of low-carbon ferromanganese(LCFeMn) manufacturing by recycling dust containing manganese

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100363608B1 (en) * 2000-12-26 2002-12-05 동부한농화학 주식회사 Method of low-carbon ferromanganese(LCFeMn) manufacturing by recycling dust containing manganese

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KR970009513B1 (en) 1997-06-14

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