BR9907219A - Método e dispositivo para alimentar gás pré-misturado às ventaneiras das fornalhas de arco elétrico - Google Patents

Método e dispositivo para alimentar gás pré-misturado às ventaneiras das fornalhas de arco elétrico

Info

Publication number
BR9907219A
BR9907219A BR9907219-0A BR9907219A BR9907219A BR 9907219 A BR9907219 A BR 9907219A BR 9907219 A BR9907219 A BR 9907219A BR 9907219 A BR9907219 A BR 9907219A
Authority
BR
Brazil
Prior art keywords
tuyeres
mixed gas
arc furnace
neutral gas
feeding pre
Prior art date
Application number
BR9907219-0A
Other languages
English (en)
Inventor
Bruno Aita
Fernando Clocchiatti
Original Assignee
Danieli Off Mecc
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 Danieli Off Mecc filed Critical Danieli Off Mecc
Publication of BR9907219A publication Critical patent/BR9907219A/pt

Links

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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • 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; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F27B3/225—Oxygen blowing
    • 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)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Details (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Discharge Heating (AREA)
  • Accessories For Mixers (AREA)

Abstract

Patente de Invenção: <B>"MéTODO E DISPOSITIVO PARA ALIMENTAR GáS PRé-MISTURADO àS VENTANEIRAS DAS FORNALHAS DE ARCO ELéTRICO"<D>. Método de alimentar as ventaneiras em uma fornalha elétrica, as ventaneiras compreendendo um conduto central para fornecer uma substância gasosa comburente e um conduto periférico para fornecer uma substância gasosa de resfriamento, o método proporcionando enviar para o conduto central uma mistura comburente que consiste em oxigênio e de um gás neutro sendo (N~ 2~, Ar, etc.) em porcentagens definidas, o oxigênio e o gás neutro sendo alimentados, para cada uma das ventaneiras, para um dispositivo de mistura (13) com uma alta capacidade de mistura, pelo menos a pressão do gás neutro sendo capaz de ser ajustada sobre a relativa linha de alimentação de modo a modular a pressão da mistura de acordo com as características do processo de fundição. Dispositivo para alimentar uma substância gasosa comburente para uma ventaneira para uma fornalha elétrica, o dispositivo compreendendo pelo menos uma linha para alimentar o oxigênio e pelo menos uma linha para alimentar o gás neutro, as duas linhas sendo conectadas a jusante de um dispositivo de mistura (13) com uma alta capacidade de mistura, disposto imediatamente a montante da relativa ventaneira, cada uma das linhas compreendendo pelo menos um meio para modular e/ou estabilizar a pressão de fornecimento.
BR9907219-0A 1998-01-23 1999-01-20 Método e dispositivo para alimentar gás pré-misturado às ventaneiras das fornalhas de arco elétrico BR9907219A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT98UD000007A IT1299725B1 (it) 1998-01-23 1998-01-23 Procedimento di alimentazione per tubiere per forno elettrico e relativo dispostivo di alimentazione
PCT/IB1999/000085 WO1999037822A1 (en) 1998-01-23 1999-01-20 Method and device to feed premixed gas to tuyeres of electric arc furnaces

Publications (1)

Publication Number Publication Date
BR9907219A true BR9907219A (pt) 2000-10-24

Family

ID=11422550

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9907219-0A BR9907219A (pt) 1998-01-23 1999-01-20 Método e dispositivo para alimentar gás pré-misturado às ventaneiras das fornalhas de arco elétrico

Country Status (12)

Country Link
US (1) US6377602B1 (pt)
EP (1) EP1049811B1 (pt)
JP (1) JP2002501161A (pt)
CN (1) CN1288486A (pt)
AT (1) ATE210738T1 (pt)
AU (1) AU744310B2 (pt)
BR (1) BR9907219A (pt)
CA (1) CA2318150A1 (pt)
DE (1) DE69900588T2 (pt)
ES (1) ES2169593T3 (pt)
IT (1) IT1299725B1 (pt)
WO (1) WO1999037822A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10188119B2 (en) 2001-07-16 2019-01-29 Foret Plasma Labs, Llc Method for treating a substance with wave energy from plasma and an electrical arc
US8764978B2 (en) 2001-07-16 2014-07-01 Foret Plasma Labs, Llc System for treating a substance with wave energy from an electrical arc and a second source
US8981250B2 (en) 2001-07-16 2015-03-17 Foret Plasma Labs, Llc Apparatus for treating a substance with wave energy from plasma and an electrical Arc
US7622693B2 (en) * 2001-07-16 2009-11-24 Foret Plasma Labs, Llc Plasma whirl reactor apparatus and methods of use
US7857972B2 (en) 2003-09-05 2010-12-28 Foret Plasma Labs, Llc Apparatus for treating liquids with wave energy from an electrical arc
WO2008008104A2 (en) 2006-04-05 2008-01-17 Foret Plasma Labs, Llc System, method and apparatus for treating liquids with wave energy from plasma
CN105143413B (zh) 2012-12-11 2017-07-04 弗雷特等离子实验室公司 高温逆流涡动反应器系统、方法和装置
MX358199B (es) 2013-03-12 2018-08-08 Foret Plasma Labs Llc Método y aparato para la sinterización de agentes de sostén.
CN103451360A (zh) * 2013-09-11 2013-12-18 天津伟力盛世节能科技股份有限公司 一种氧气输送装置
CN112029956B (zh) * 2020-03-24 2022-02-25 江苏省沙钢钢铁研究院有限公司 一种电弧炉炼钢的供氧方法
IT202200010706A1 (it) * 2022-05-24 2023-11-24 More S R L Apparato e procedimento per la fornitura di gas ad un forno per la produzione di metallo

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902889A (en) 1972-11-30 1975-09-02 United States Steel Corp Electric arc melting furnace
US3812275A (en) * 1973-02-26 1974-05-21 Pennsylvania Engineering Corp Steel production method and apparatus
US3999977A (en) 1973-04-25 1976-12-28 United States Steel Corporation Method for controlling the injection of flux into a steelmaking vessel as a function of pressure differential
US3972517A (en) * 1974-08-05 1976-08-03 Fedor Vladimirovich Kraizinger Tuyere for introducing reactants into a bath of molten metal
DE3806977A1 (de) 1988-03-03 1989-09-14 Fuchs Systemtechnik Gmbh Verfahren zum regeln des durchflusses beim einblasen eines gases durch einen bodenspuelstein waehrend des einschmelzens von metallen
AT396370B (de) 1992-03-31 1993-08-25 Voest Alpine Ind Anlagen Verfahren zum herstellen von stahl aus schrott
EP0625685B1 (en) 1993-05-17 1999-07-21 DANIELI &amp; C. OFFICINE MECCANICHE S.p.A. Electric arc furnace with alternative sources of energy and operating method for such electric furnace
JPH07145420A (ja) 1993-09-30 1995-06-06 Ishikawajima Harima Heavy Ind Co Ltd 電気アーク溶解炉
US5557631A (en) 1994-05-06 1996-09-17 Dynex Engineering Inc. Sonic furnace monitoring apparatus
IT1280115B1 (it) * 1995-01-17 1998-01-05 Danieli Off Mecc Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco

Also Published As

Publication number Publication date
IT1299725B1 (it) 2000-04-04
EP1049811B1 (en) 2001-12-12
WO1999037822A1 (en) 1999-07-29
CA2318150A1 (en) 1999-07-29
ITUD980007A1 (it) 1999-07-23
ES2169593T3 (es) 2002-07-01
JP2002501161A (ja) 2002-01-15
US6377602B1 (en) 2002-04-23
DE69900588T2 (de) 2002-07-18
ATE210738T1 (de) 2001-12-15
DE69900588D1 (de) 2002-01-24
EP1049811A2 (en) 2000-11-08
CN1288486A (zh) 2001-03-21
AU1885899A (en) 1999-08-09
AU744310B2 (en) 2002-02-21

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time