KR900001866A - Method and apparatus for heating steel melt - Google Patents

Method and apparatus for heating steel melt Download PDF

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Publication number
KR900001866A
KR900001866A KR1019890010457A KR890010457A KR900001866A KR 900001866 A KR900001866 A KR 900001866A KR 1019890010457 A KR1019890010457 A KR 1019890010457A KR 890010457 A KR890010457 A KR 890010457A KR 900001866 A KR900001866 A KR 900001866A
Authority
KR
South Korea
Prior art keywords
ladle
nozzle
slag
heating
inert gas
Prior art date
Application number
KR1019890010457A
Other languages
Korean (ko)
Inventor
포흐마르스키 루치안
퀄러 오토
Original Assignee
미터, 쉬터루쯜
뵈스트-알핀 쉬탈 도나비츠 게젤샤프트 엠.베.하.
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.)
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Publication date
Application filed by 미터, 쉬터루쯜, 뵈스트-알핀 쉬탈 도나비츠 게젤샤프트 엠.베.하. filed Critical 미터, 쉬터루쯜
Publication of KR900001866A publication Critical patent/KR900001866A/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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

내용 없음No content

Description

강용융물을 가열하기 위한 방법 및 장치Method and apparatus for heating steel melt

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

도면은 본 발명을 실행하기 위한 장치의 한 구현예의 개략도.Figures are schematic diagrams of one embodiment of an apparatus for practicing the present invention.

Claims (6)

금속-발열(metallo-thermal) 열을 이용하여 KVA공정과 같은 연속제강공정에 대한 산화철이 많은 슬래그(8)로 덮혀 있는 래들(5)내의 가용융물(10)을 가열하기 위한 방법에 있어서, 욕의 산소와 또 슬래그의 산소화 발열 반응하는 AI, Si와 같은 금속, 이들의 혼합물 또는 합금 뿐만 아니라 CaO,AI2O3,MgO 및/또는 SiO2와 같은 분말형 슬래그 형성재를 선택적으로 래들(5)이 충진되는 동안에 욕 및 슬래그의 혼합물용 수용래들(5)의 바닥(12)에 갖춰진 노즐(14,16)을 통해 불활성가스에 의해 취입함을 특징으로 하는 가용융물 가열방법.A method for heating a soluble melt 10 in a ladle 5 covered with iron oxide-rich slag 8 for a continuous steelmaking process such as a KVA process using metallo-thermal heat. Optionally ladles (5) of metals such as AI, Si, mixtures or alloys thereof, as well as powdered slag forming materials such as CaO, AI 2 O 3 , MgO and / or SiO 2, with oxygen of the slag and oxygenated exothermic reactions of the slag. Method of heating a soluble melt, characterized in that blown by an inert gas through the nozzle (14,16) provided at the bottom (12) of the receiving ladle (5) for the mixture of bath and slag during the filling. 제 1 항에 있어서, 금속-발열 반응물질의 0.1 내지 2중량%, 바람직하게는 0.5 내지 2중량%를 래들의 충진에 필요한 시간의 20 내지 100%내에서 래들바닥(12)을 통해 취입함을 특징으로 하는 방법.The method according to claim 1, wherein from 0.1 to 2% by weight, preferably 0.5 to 2% by weight of the metal-heating reactant is blown through the ladle bottom 12 within 20 to 100% of the time required for filling the ladle. How to feature. 제 1 항 또는 제 2 항에 있어서, 불활성가스의 양이 취입되는 고체 물질의 kg당 5 내지 30리터의 불활성 가스로 조절됨을 특징으로 하는 방법.3. Process according to claim 1 or 2, characterized in that the amount of inert gas is adjusted to 5 to 30 liters of inert gas per kg of solid material blown. 적어도 하나의 바닥 노즐을 갖는 래들(5)을 포함하고, 제 1,2 또는 제 3 항의 어느 항에 의한 방법을 실행하기 위한 장치에 있어서, 적어도 하나의 바닥노즐 (14)은 금속-발열 반응물질용 기체운반수단(11)과 연결됨을 특징으로 하는 강용융물 가열장치.In a device for carrying out the method according to any one of the preceding claims, comprising a ladle (5) having at least one bottom nozzle, the at least one bottom nozzle (14) is a metal-heating reactant Steel melt heating device, characterized in that connected to the gas transport means (11). 제 4 항에 있어서, 다수의 바닥 노즐(14,16)은 래들벽에서 간격이 있게 설치되고, 상기 바닥 노즐은 래들 직경의 50 내지 70%의 크기를 갖는 직경을 따라 래들벽에 대하여 동심으로 배열됨을 특징으로 하는 장치.5. A plurality of bottom nozzles (14, 16) according to claim 4, wherein the plurality of bottom nozzles (14, 16) are spaced apart in the ladle wall, the bottom nozzles arranged concentrically to the ladle wall along a diameter having a size of 50 to 70% of the ladle diameter. Characterized in that the device. 제 5 항에 있어서, 바닥 노즐(14,16)은 덮개 원주를 따라 동일 간격으로 배치되고 압축공기 이동수단(11)에 연결되는 각 바닥 노즐(14)에는 불활성 가스를 공급하는 하나 내지 세개의 바닥 노즐(16)이 설치되어 있음을 특징으로 하는 장치.6. The bottom nozzles (14) and (16) according to claim 5, wherein the bottom nozzles (14, 16) are arranged at equal intervals along the cover circumference and one to three bottoms for supplying inert gas to each bottom nozzle (14) connected to the compressed air moving means (11). Device characterized in that the nozzle (16) is installed. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890010457A 1988-07-22 1989-07-22 Method and apparatus for heating steel melt KR900001866A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT188288 1988-07-22
ATA1882/88 1988-07-22

Publications (1)

Publication Number Publication Date
KR900001866A true KR900001866A (en) 1990-02-27

Family

ID=3523064

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890010457A KR900001866A (en) 1988-07-22 1989-07-22 Method and apparatus for heating steel melt

Country Status (8)

Country Link
KR (1) KR900001866A (en)
CN (1) CN1039447A (en)
BR (1) BR8903614A (en)
DD (1) DD284055A5 (en)
HU (1) HUT55901A (en)
MX (1) MX170836B (en)
YU (1) YU146689A (en)
ZA (1) ZA894959B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402003B1 (en) * 1999-08-30 2003-10-17 주식회사 포스코 A method for increasing scrap melting rate in electric furnace
KR100916901B1 (en) * 2002-09-12 2009-09-09 주식회사 포스코 Molten steel thermostat in ladle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318165C (en) * 2004-02-27 2007-05-30 宝山钢铁股份有限公司 Coverage dregs for ladle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402003B1 (en) * 1999-08-30 2003-10-17 주식회사 포스코 A method for increasing scrap melting rate in electric furnace
KR100916901B1 (en) * 2002-09-12 2009-09-09 주식회사 포스코 Molten steel thermostat in ladle

Also Published As

Publication number Publication date
HUT55901A (en) 1991-06-28
DD284055A5 (en) 1990-10-31
BR8903614A (en) 1990-03-13
YU146689A (en) 1993-10-20
ZA894959B (en) 1990-04-25
MX170836B (en) 1993-09-20
CN1039447A (en) 1990-02-07

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