DD250136A5 - Verfahren und vorrichtung fuer die vorwaermung von beschickungsmaterialien fuer die kontinuierliche herstellung von stahl - Google Patents

Verfahren und vorrichtung fuer die vorwaermung von beschickungsmaterialien fuer die kontinuierliche herstellung von stahl Download PDF

Info

Publication number: DD250136A5
Authority: DD; German Democratic Republic
Prior art keywords: furnace; tunnel; conveyor; preheating; closure
Prior art date: 1985-10-16

Application number

DD86295233A

Other languages

German (de)

English (en)

Inventor

John A Vallomy

Original Assignee

��@��@��Kk��

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.)

1985-10-16

Filing date

1986-10-13

Publication date

1987-09-30

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25143028&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DD250136(A5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1986-10-13 Application filed by ��@��@��Kk�� filed Critical ��@��@��Kk��

1987-09-30 Publication of DD250136A5 publication Critical patent/DD250136A5/de

Links

238000000034 method Methods 0.000 title claims abstract description 22
239000000463 material Substances 0.000 title claims description 23
238000004519 manufacturing process Methods 0.000 title description 6
239000007789 gas Substances 0.000 claims abstract description 38
238000009628 steelmaking Methods 0.000 claims abstract description 20
238000001816 cooling Methods 0.000 claims abstract description 12
230000008569 process Effects 0.000 claims abstract description 7
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
229910052742 iron Inorganic materials 0.000 claims description 12
229910052751 metal Inorganic materials 0.000 claims description 12
239000002184 metal Substances 0.000 claims description 12
238000007670 refining Methods 0.000 claims description 9
239000000203 mixture Substances 0.000 claims description 8
238000002485 combustion reaction Methods 0.000 claims description 7
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
230000000694 effects Effects 0.000 claims description 2
230000001590 oxidative effect Effects 0.000 claims description 2
238000010438 heat treatment Methods 0.000 claims 7
239000011874 heated mixture Substances 0.000 claims 1
238000010079 rubber tapping Methods 0.000 abstract description 10
238000007600 charging Methods 0.000 abstract description 5
239000002893 slag Substances 0.000 description 20
229910000831 Steel Inorganic materials 0.000 description 15
239000010959 steel Substances 0.000 description 15
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
229910052760 oxygen Inorganic materials 0.000 description 10
239000001301 oxygen Substances 0.000 description 10
230000009467 reduction Effects 0.000 description 10
238000002844 melting Methods 0.000 description 8
230000008018 melting Effects 0.000 description 8
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
229910052799 carbon Inorganic materials 0.000 description 5
238000005272 metallurgy Methods 0.000 description 5
229910001208 Crucible steel Inorganic materials 0.000 description 3
229910000805 Pig iron Inorganic materials 0.000 description 3
238000005275 alloying Methods 0.000 description 3
229910002091 carbon monoxide Inorganic materials 0.000 description 3
238000005266 casting Methods 0.000 description 3
239000006260 foam Substances 0.000 description 3
239000000446 fuel Substances 0.000 description 3
239000002994 raw material Substances 0.000 description 3
229910001018 Cast iron Inorganic materials 0.000 description 2
239000000956 alloy Substances 0.000 description 2
238000006243 chemical reaction Methods 0.000 description 2
238000009749 continuous casting Methods 0.000 description 2
238000005520 cutting process Methods 0.000 description 2
238000006477 desulfuration reaction Methods 0.000 description 2
230000023556 desulfurization Effects 0.000 description 2
230000006698 induction Effects 0.000 description 2
VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
230000003647 oxidation Effects 0.000 description 2
238000007254 oxidation reaction Methods 0.000 description 2
239000008188 pellet Substances 0.000 description 2
238000003860 storage Methods 0.000 description 2
241000273930 Brevoortia tyrannus Species 0.000 description 1
239000004484 Briquette Substances 0.000 description 1
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
238000003723 Smelting Methods 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
229910000870 Weathering steel Inorganic materials 0.000 description 1
238000007792 addition Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
238000013459 approach Methods 0.000 description 1
238000007664 blowing Methods 0.000 description 1
235000019577 caloric intake Nutrition 0.000 description 1
239000000571 coke Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
239000000356 contaminant Substances 0.000 description 1
238000011109 contamination Methods 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
238000010586 diagram Methods 0.000 description 1
238000010891 electric arc Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000011049 filling Methods 0.000 description 1
238000005187 foaming Methods 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
230000006872 improvement Effects 0.000 description 1
239000004571 lime Substances 0.000 description 1
238000011068 loading method Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
239000000155 melt Substances 0.000 description 1
239000012768 molten material Substances 0.000 description 1
239000003345 natural gas Substances 0.000 description 1
238000010422 painting Methods 0.000 description 1
239000002245 particle Substances 0.000 description 1
229910052698 phosphorus Inorganic materials 0.000 description 1
239000011574 phosphorus Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000000746 purification Methods 0.000 description 1
238000003908 quality control method Methods 0.000 description 1
230000000171 quenching effect Effects 0.000 description 1
239000011819 refractory material Substances 0.000 description 1
238000010405 reoxidation reaction Methods 0.000 description 1
230000008439 repair process Effects 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
238000007790 scraping Methods 0.000 description 1
238000000926 separation method Methods 0.000 description 1
238000007493 shaping process Methods 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
230000009466 transformation Effects 0.000 description 1

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
- F27B3/18—Arrangements of devices for charging
- F27B3/183—Charging of arc furnaces vertically through the roof, e.g. in three points
- 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
- C21C5/56—Manufacture of steel by other methods
- C21C5/562—Manufacture of steel by other methods starting from scrap
- C21C5/565—Preheating of scrap
- 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
- C21C5/56—Manufacture of steel by other methods
- C21C5/567—Manufacture of steel by other methods operating in a continuous way
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
- F27B3/19—Arrangements of devices for discharging
- 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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
- F27D13/002—Preheating scrap
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
- 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
- C21C2100/00—Exhaust gas
- C21C2100/04—Recirculation of the exhaust gas
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
- F27B3/065—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement tiltable
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/30—Arrangements for extraction or collection of waste gases; Hoods therefor
- F27D17/304—Arrangements for extraction or collection of waste gases; Hoods therefor specially adapted for electric arc furnaces
- 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

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Environmental & Geological Engineering (AREA)
Furnace Details (AREA)
Vertical, Hearth, Or Arc Furnaces (AREA)
Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

DD86295233A 1985-10-16 1986-10-13 Verfahren und vorrichtung fuer die vorwaermung von beschickungsmaterialien fuer die kontinuierliche herstellung von stahl DD250136A5 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/787,959 US4609400A (en)	1984-08-02	1985-10-16	Method and apparatus for preheating charge materials for continuous steelmaking

Publications (1)

Publication Number	Publication Date
DD250136A5 true DD250136A5 (de)	1987-09-30

Family

ID=25143028

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DD86295233A DD250136A5 (de)	1985-10-16	1986-10-13	Verfahren und vorrichtung fuer die vorwaermung von beschickungsmaterialien fuer die kontinuierliche herstellung von stahl

Country Status (8)

Country	Link
US (1)	US4609400A (ja)
EP (1)	EP0219824A1 (ja)
JP (1)	JPS6294792A (ja)
KR (1)	KR870004152A (ja)
BR (1)	BR8604884A (ja)
DD (1)	DD250136A5 (ja)
ES (1)	ES2002533A6 (ja)
SU (1)	SU1493114A3 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2270240A2 (de)	2009-07-03	2011-01-05	SMS Siemag Aktiengesellschaft	Beschickungsverfahren und Beschickungsvorrichtung für einen Schmelzofen

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US5400358A (en) *	1992-10-13	1995-03-21	Consteel, S.A.	Continuous scrap preheating
FR2705364B1 (fr) *	1993-05-13	1995-08-11	Clecim Sa	Procédé de préchauffage et de fusion de ferraille dans un four électrique et installation de production de métal liquide mettant en Óoeuvre le procédé.
CH690284A5 (it) *	1995-05-24	2000-06-30	Elti Srl	Procedimento di preriscaldo del rottame per postcombustione dei fumi e dispositivo per realizzare il procedimento.
US5800591A (en) *	1996-09-20	1998-09-01	Techint Compagnia Tecnica Internazionale	Method and apparatus for feeding a steelmaking furnace
WO2000047780A2 (en) *	1999-02-02	2000-08-17	Hylsa, S.A. De C.V.	Method and apparatus for preheating of direct reduced iron used as feed to an electric arc furnace
US6478841B1 (en)	2001-09-12	2002-11-12	Techint Technologies Inc.	Integrated mini-mill for iron and steel making
ITUD20050023A1 (it) *	2005-02-22	2006-08-23	Danieli Off Mecc	Convogliatore di collegamento per il caricamento di una carica metallica in un impianto di fusione
ITMI20050626A1 (it) *	2005-04-13	2006-10-14	Technit Compagnia Tecnica Inte	Apparato per la misura e il controllo dell'alimentazione di materiale di carica o rottame ad un forno e relativo procedimento
JP4724546B2 (ja) *	2005-12-08	2011-07-13	新日本製鐵株式会社	スクラップの予熱処理装置及び予熱処理方法
RU2433338C2 (ru) *	2007-06-19	2011-11-10	Лн 2 С.Р.Л. А Сочо Унико	Телескопическая и препятствующая разъединению концевая труба для газоходов конденсирующих бойлеров
WO2009095942A1 (en) *	2008-02-01	2009-08-06	Concast Ag	Iron metallurgical plant
TWI573878B (zh) *	2009-03-18	2017-03-11	拉斐克布洛斯道	鋼生產設備、煉鋼方法以及在鋼生產設備中使用電能的方法
RU2420597C1 (ru) *	2010-02-16	2011-06-10	Государственное образовательное учреждение высшего профессионального образования "Тверской государственный технический университет"	Способ плавки стали в дуговой сталеплавильной печи трехфазного тока
IT1401116B1 (it) *	2010-07-14	2013-07-12	Tenova Spa	Sistema di carica continua ad un forno fusorio di materiale metallico preriscaldato in forma continua, potenziata e combinata.
KR101312525B1 (ko) *	2011-12-22	2013-09-27	재단법인 포항산업과학연구원	스크랩 프리히터장치 및 이를 이용한 스크랩 히팅제어방법
RU2634105C1 (ru) *	2016-05-06	2017-10-23	Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет"	Способ плавки стали в дуговой сталеплавильной печи трехфазного тока
US20190017745A1 (en) *	2017-07-11	2019-01-17	Air Products And Chemicals, Inc.	Systems and Methods for Preheating Metal-Containing Pellets
CN107460274B (zh) *	2017-09-22	2023-09-12	中冶赛迪工程技术股份有限公司	一种水平连续加料预热装置及其强化预热方法
CN109797268B (zh) *	2019-03-11	2024-04-05	中冶赛迪工程技术股份有限公司	利用电弧炉消纳废弃物的炼钢装置和方法
IT202000000793A1 (it) *	2020-01-17	2021-07-17	Tenova Spa	Procedimento ed impianto perfezionati per preriscaldare una carica metallica alimentata in continuo ad un forno fusorio elettrico

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US2623740A (en) *	1948-09-15	1952-12-30	Frost	Kiln
US3022157A (en) *	1959-05-21	1962-02-20	Pyromet Corp	Method for continuous hearth refining of steel and beneficiation of ores of ferro alloys
AU422152B2 (en) *	1968-02-16	1972-03-07	Monzino Riotinto Of Australia Limited	Method and apparatus for refining metals
US3667747A (en) *	1970-05-19	1972-06-06	Fecor Ind Ltd	Conveyor heater
US3813209A (en) *	1973-02-26	1974-05-28	H Venetta	Preheating of metal scrap
US4135702A (en) *	1976-10-29	1979-01-23	Venetta, Inc.	Method and apparatus for preheating scrap
FI74320C (fi) *	1979-09-07	1988-01-11	Waertsilae Oy Ab	Cylinderlaosmekanism.
JPS6016901Y2 (ja) *	1979-09-20	1985-05-25	シャープ株式会社	液晶表示装置
US4457777A (en) *	1981-09-07	1984-07-03	British Steel Corporation	Steelmaking
US4359209A (en) *	1982-01-06	1982-11-16	Bloom Engineering Co., Inc.	Hot air ladle preheat station and method
US4543124A (en) *	1984-08-02	1985-09-24	Intersteel Technology, Inc.	Apparatus for continuous steelmaking

1985
- 1985-10-16 US US06/787,959 patent/US4609400A/en not_active Expired - Lifetime
1986
- 1986-10-07 BR BR8604884A patent/BR8604884A/pt unknown
- 1986-10-13 DD DD86295233A patent/DD250136A5/de unknown
- 1986-10-15 KR KR1019860008628A patent/KR870004152A/ko not_active Ceased
- 1986-10-15 SU SU864028348A patent/SU1493114A3/ru active
- 1986-10-15 JP JP61243320A patent/JPS6294792A/ja active Pending
- 1986-10-16 ES ES8602636A patent/ES2002533A6/es not_active Expired
- 1986-10-16 EP EP86114364A patent/EP0219824A1/en not_active Withdrawn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2270240A2 (de)	2009-07-03	2011-01-05	SMS Siemag Aktiengesellschaft	Beschickungsverfahren und Beschickungsvorrichtung für einen Schmelzofen
DE102009031648A1 (de)	2009-07-03	2011-01-05	Sms Siemag Ag	Beschickungsverfahren und Beschickungsvorrichtung

Also Published As

Publication number	Publication date
EP0219824A1 (en)	1987-04-29
SU1493114A3 (ru)	1989-07-07
ES2002533A6 (es)	1988-08-16
US4609400A (en)	1986-09-02
BR8604884A (pt)	1988-05-31
JPS6294792A (ja)	1987-05-01
KR870004152A (ko)	1987-05-07

Publication	Publication Date	Title
DE60031206T2 (de)	2007-01-18	Verfahren zum Anfahren eines Direktschmelzprozesses
DE69513098T2 (de)	2000-05-25	Verfahren zur Nackverbrennung im Elektro-Lichtbogenofen
DE69809883T2 (de)	2003-10-09	Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen
DE69914777T2 (de)	2004-08-05	Direktschmelzverfahren und -vorrichtung
EP0302111B1 (de)	1993-05-12	Verfahren und ofen zur herstellung von zwischenprodukten aus eisen-kohlenstoff für die stahlerzeugung
DE2507140C2 (de)	1985-08-14	Verfahren und Einrichtung für die Reduktion von Eisenerzen
DE102010002523B4 (de)	2011-12-22	Stahlerzeugungseinrichtung
DE3629055A1 (de)	1988-03-03	Verfahren zum gesteigerten energieeinbringen in elektrolichtbogenoefen
EP0820528A1 (de)	1998-01-28	Anlage und verfahren zum herstellen von eisenschmelzen nach dem mehrzonenschmelzverfahren
DD243716A5 (de)	1987-03-11	Verfahren und einrichtung zur herstellung von fluessigem roheisen oder stahlvorprodukten
DE2513060A1 (de)	1975-11-06	Verfahren zum kontinuierlichen vorwaermen und einschmelzen von verhuetteten eisenmineralien
DE2735808C2 (de)	1984-11-29	Vorrichtung zum Schmelzen und Raffinieren von verunreinigtem Kupfer
EP0167895A1 (de)	1986-01-15	Verfahren und Einrichtung zum Herstellen von Stahl aus Schrott
DE1433293A1 (de)	1969-01-09	Kontinuierliches Verfahren zur Herstellung von Stahl aus Eisenerz
DE69702347T2 (de)	2001-02-15	Verfahren zur reduktion und zum schmelzen von metall
DE69622802T2 (de)	2003-04-10	Verfahren und vorrichtung zur herstellung von stahl in einem elektro-lichtbogenofen
EP1228251B1 (de)	2004-11-17	Verfahren und einrichtung zum einschmelzen von feinteilchenförmigem metallhältigem material wie eisenschwamm
DE2729184A1 (de)	1978-01-05	Schachtofen oder kupolofen sowie verfahren zur kontinuierlichen erschmelzung und raffination von zementkupfer im kupolofen und zugeordneten einrichtungen
DE2659213A1 (de)	1977-07-28	Verfahren zur eisenerzverhuettung
DE2840945C3 (de)	1981-07-23	Verfahren und Vorrichtung zum Vorwärmen von wenigstens 0,5 Prozent Kohlenstoff enthaltendem Eisenschwamm
DE68909259T2 (de)	1994-01-27	Verfahren zum Einschmelzen von kaltem Eisen.
WO1987005634A1 (fr)	1987-09-24	Procede et dispositif pour la gazeification d'un bain de fusion
DE4139236C2 (de)	1995-02-02	Verfahren und Vorrichtung zum Schmelzen von Roheisen
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