BRPI0700468A - método de injetar oxigênio em um banho localizado dentro de um forno metalúrgico - Google Patents

método de injetar oxigênio em um banho localizado dentro de um forno metalúrgico

Info

Publication number
BRPI0700468A
BRPI0700468A BRPI0700468-0A BRPI0700468A BRPI0700468A BR PI0700468 A BRPI0700468 A BR PI0700468A BR PI0700468 A BRPI0700468 A BR PI0700468A BR PI0700468 A BRPI0700468 A BR PI0700468A
Authority
BR
Brazil
Prior art keywords
oxygen
passageways
fuel
jet
melt
Prior art date
Application number
BRPI0700468-0A
Other languages
English (en)
Inventor
William John Mahoney
Michael Francis Riley
Adrian Christian Deneys
Gary Thomas Vardian
Stephen A Manley
Original Assignee
Praxair Technology Inc
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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BRPI0700468A publication Critical patent/BRPI0700468A/pt
Publication of BRPI0700468B1 publication Critical patent/BRPI0700468B1/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • 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
    • 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
    • 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
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/48—Nozzles
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Treating Waste Gases (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

MéTODO DE INJETAR OXIGêNIO EM BANHO LOCALIZADO DENTRO DE UM FORNO METALúRGICO. Um método de injetar oxigênio em um banho localizado dentro de um forno metalúrgico tendo uma atmosfera aquecida do forno na qual oxigênio e combustível são injetados em um ou mais bocais tendo passagens de configuração convergente-divergente sob condições de fluxo estrangulado para produzir jato ou jatos supersónicos descarregados das passagens. Combustível é injetado em locais circunferenciais internos das passagens assim para conferir uma estrutura aos jatos sendo descarregados que têm uma região circunferencial exterior contendo uma mistura de combustível e oxigênio e uma região central contendo essencialmente oxigênio. Tal jato estruturado na descarga interage com a atmosfera de forno para criar uma zona de mistura-cisalhamento exterior na qual a camada circunferencial exterior se mistura com a atmosfera aquecida do forno e se auto-inflama para produzir um invólucro de chama circundando um jato supersónico de oxigênio. O jato de oxigênio e invólucro de chama podem ser dirigidos contra um banho contido dentro do forno metalúrgico para injeção de oxigênio no banho.
BRPI0700468-0A 2006-06-28 2007-02-27 Método de injetar oxigênio em um banho localizado dentro de um forno metalúrgico BRPI0700468B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/476,039 US7452401B2 (en) 2006-06-28 2006-06-28 Oxygen injection method

Publications (2)

Publication Number Publication Date
BRPI0700468A true BRPI0700468A (pt) 2008-02-19
BRPI0700468B1 BRPI0700468B1 (pt) 2015-08-18

Family

ID=38616030

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0700468-0A BRPI0700468B1 (pt) 2006-06-28 2007-02-27 Método de injetar oxigênio em um banho localizado dentro de um forno metalúrgico

Country Status (15)

Country Link
US (1) US7452401B2 (pt)
EP (1) EP2047001B1 (pt)
JP (1) JP5346803B2 (pt)
KR (1) KR101361889B1 (pt)
CN (1) CN101096718B (pt)
AT (1) ATE530673T1 (pt)
AU (1) AU2007265469A1 (pt)
BR (1) BRPI0700468B1 (pt)
CA (1) CA2654912C (pt)
ES (1) ES2371200T3 (pt)
MX (1) MX2008016249A (pt)
NO (1) NO342338B1 (pt)
RU (1) RU2449025C2 (pt)
WO (1) WO2008002585A1 (pt)
ZA (1) ZA200810241B (pt)

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US20110127701A1 (en) * 2009-11-30 2011-06-02 Grant Michael G K Dynamic control of lance utilizing co-flow fluidic techniques
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DE102011002612A1 (de) * 2011-01-13 2012-07-19 Siemens Aktiengesellschaft Verfahren zur Behandlung eines kohlendioxidhaltigen Abgases
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DE102021200059A1 (de) * 2020-08-03 2022-02-03 Sms Group Gmbh Verfahren zum gleichzeitigen Einblasen eines Brenngases und eines sauerstoffreichen Gases in ein Aggregat
CN112032715B (zh) * 2020-09-28 2025-07-01 陕西宏远燃烧设备有限公司 一种硫回收烧嘴
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DE102020215076A1 (de) * 2020-11-30 2022-06-02 Sms Group Gmbh Verfahren zur Behandlung von Metallschmelzen und/oder Schlacken in metallurgischen Bädern sowie metallurgische Anlage zur Behandlung von Metallschmelzen
DE102020215147A1 (de) 2020-12-01 2022-06-02 Sms Group Gmbh Verfahren zum pyrometallurgischen Einschmelzen von metallhaltigen Rohstoffen, Reststoffen und/oder Sekundärreststoffen
CN115232908B (zh) * 2022-08-02 2024-06-14 广东韶钢松山股份有限公司 防止干法除尘泄爆的转炉炼钢方法
EP4414647A1 (en) * 2023-02-08 2024-08-14 Linde GmbH A method for heating or refining a liquid material in a furnace
KR20260011450A (ko) * 2024-07-16 2026-01-23 현대제철 주식회사 버너 및 이를 포함하는 전기로
CN118853996B (zh) * 2024-09-23 2025-01-07 苏州思萃熔接技术研究所有限公司 一种用于转炉中预热金属废料的多喷嘴燃料-氧气喷燃器
CN119824175B (zh) * 2025-03-14 2025-06-17 北京科技大学 基于浸没式超音速气固喷吹的少渣高效冶炼方法和系统

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Also Published As

Publication number Publication date
ATE530673T1 (de) 2011-11-15
WO2008002585A1 (en) 2008-01-03
JP2009542909A (ja) 2009-12-03
KR20090023734A (ko) 2009-03-05
US7452401B2 (en) 2008-11-18
AU2007265469A1 (en) 2008-01-03
EP2047001A1 (en) 2009-04-15
CA2654912A1 (en) 2008-01-03
MX2008016249A (es) 2009-01-16
NO20090359L (no) 2009-01-23
RU2009102641A (ru) 2010-08-10
NO342338B1 (no) 2018-05-07
RU2449025C2 (ru) 2012-04-27
BRPI0700468B1 (pt) 2015-08-18
JP5346803B2 (ja) 2013-11-20
CA2654912C (en) 2011-08-23
EP2047001B1 (en) 2011-10-26
US20080000325A1 (en) 2008-01-03
ZA200810241B (en) 2009-09-30
CN101096718A (zh) 2008-01-02
CN101096718B (zh) 2013-01-02
ES2371200T3 (es) 2011-12-28
WO2008002585A8 (en) 2008-12-04
KR101361889B1 (ko) 2014-02-13

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/02/2007, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2619 DE 16-03-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.