BR0109303A - Forno de aquecimento tendo queimadores de regeneração de calor e seu método de operação - Google Patents

Forno de aquecimento tendo queimadores de regeneração de calor e seu método de operação

Info

Publication number
BR0109303A
BR0109303A BR0109303-7A BR0109303A BR0109303A BR 0109303 A BR0109303 A BR 0109303A BR 0109303 A BR0109303 A BR 0109303A BR 0109303 A BR0109303 A BR 0109303A
Authority
BR
Brazil
Prior art keywords
heat
burners
exhaust gas
heat regeneration
heating furnace
Prior art date
Application number
BR0109303-7A
Other languages
English (en)
Inventor
Ichiro Sugimoto
Kenta Karube
Masahiro Furukawa
Kazunari Andachi
Original Assignee
Kawasaki Steel Co
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
Priority claimed from JP2001008523A external-priority patent/JP3800008B2/ja
Priority claimed from JP2001008524A external-priority patent/JP3937729B2/ja
Priority claimed from JP2001014230A external-priority patent/JP2002212630A/ja
Priority claimed from JP2001016974A external-priority patent/JP2002220620A/ja
Priority claimed from JP2001017017A external-priority patent/JP2002220621A/ja
Application filed by Kawasaki Steel Co filed Critical Kawasaki Steel Co
Publication of BR0109303A publication Critical patent/BR0109303A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/52—Methods of heating with flames
    • 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, e.g. noise reduction means
    • F23D14/66—Preheating the combustion air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/02—Arrangements of regenerators
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/40—Arrangements of controlling or monitoring devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • F27B2009/3638—Heaters located above and under the track
    • 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
    • F27D17/004—Systems for reclaiming waste heat
    • 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
    • F27D17/004—Systems for reclaiming waste heat
    • F27D2017/007—Systems for reclaiming waste heat including regenerators
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0031—Regulation through control of the flow of the exhaust gases
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/0053—Burner fed with preheated gases
    • F27D2099/0056—Oxidant
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Air Supply (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Tunnel Furnaces (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Gas Burners (AREA)

Abstract

"FORNO DE AQUECIMENTO TENDO QUEIMADORES DE REGENERAçãO DE CALOR E SEU MéTODO DE OPERAçãO". São propostos um método para controlar a pressão em um forno para evitar a introdução de ar em um forno de aquecimento, um método de operação estável durante a baixa carga de combustão dos queimadores regeneradores de calor e um método para medição da concentração de um gás atmosférico em um forno de aquecimento. Quando o calor recuperado com os queimadores cada um deles ligado a um corpo de regeneração de calor é usado para aquecer o ar de combustão dos queimadores em um estado de combustão, a razão de absorção do gás de exaustão a partir dos queimadores para o corpo de regeneração de calor é ajustada para controlar a pressão do forno de acordo com uma carga de combustão em todo o forno de aquecimento. A pressão no forno é controlada ajustando-se a taxa de fluxo de ar diluído de acordo com a temperatura do gás de exaustão na chaminé de exaustão do lado de entrada de um recuperador no forno de aquecimento e a carga de combustão no forno de aquecimento. Quando a porta de extração do forno de aquecimento é aberta, a chama dos queimadores de aquecimento localizados na região inferior da extremidade de extração do forno é estendida por toda a largura da abertura na direção lateral da porta de extração fechando assim o caminho de entrada do ar na porta de extração com a chama do queimador, suprimindo assim o aumento da concentração de oxigênio no forno. Em um caso onde a carga de combustão nos queimadores regeneradores de calor é pequena, um sopro quente é fornecido ao dispositivo de absorção para absorver o gás de exaustão no forno a partir dos queimadores através do corpo de regeneração de calor durante o estado de não-combustão. Quando a operação para o forno de aquecimento é conduzida enquanto utiliza o calor recuperado para aquecer o ar de combustão dos queimadores durante o estado de combustão, uma porção do gás de exaustão absorvido dos queimadores é introduzida em um analisador para medir a concentração dos ingredientes do gás de exaustão.
BR0109303-7A 2001-01-17 2001-12-27 Forno de aquecimento tendo queimadores de regeneração de calor e seu método de operação BR0109303A (pt)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2001008523A JP3800008B2 (ja) 2001-01-17 2001-01-17 蓄熱式バーナを有する加熱炉の操業方法および加熱炉
JP2001008524A JP3937729B2 (ja) 2001-01-17 2001-01-17 加熱炉の雰囲気制御方法および加熱炉
JP2001014230A JP2002212630A (ja) 2001-01-23 2001-01-23 加熱炉内の雰囲気ガス濃度の測定方法および加熱炉
JP2001016974A JP2002220620A (ja) 2001-01-25 2001-01-25 加熱炉の炉圧制御方法
JP2001017017A JP2002220621A (ja) 2001-01-25 2001-01-25 蓄熱式バーナを利用した炉圧制御方法
PCT/JP2001/011508 WO2002057501A1 (fr) 2001-01-17 2001-12-27 Four de rechauffage equipe de bruleurs regeneratifs et procede d'exploitation du four de rechauffage

Publications (1)

Publication Number Publication Date
BR0109303A true BR0109303A (pt) 2002-12-17

Family

ID=27531773

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0109303-7A BR0109303A (pt) 2001-01-17 2001-12-27 Forno de aquecimento tendo queimadores de regeneração de calor e seu método de operação

Country Status (10)

Country Link
US (1) US6644962B2 (pt)
EP (2) EP1275740B1 (pt)
KR (1) KR100634776B1 (pt)
CN (1) CN100338236C (pt)
AT (1) ATE346172T1 (pt)
BR (1) BR0109303A (pt)
CA (2) CA2639404A1 (pt)
DE (1) DE60124691T2 (pt)
TW (1) TW524956B (pt)
WO (1) WO2002057501A1 (pt)

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Also Published As

Publication number Publication date
EP1275740A4 (en) 2005-03-02
DE60124691T2 (de) 2007-09-13
ATE346172T1 (de) 2006-12-15
DE60124691D1 (de) 2007-01-04
US6644962B2 (en) 2003-11-11
KR20020083180A (ko) 2002-11-01
EP1757707A2 (en) 2007-02-28
US20030027095A1 (en) 2003-02-06
KR100634776B1 (ko) 2006-10-16
WO2002057501A1 (fr) 2002-07-25
CA2403221C (en) 2009-02-17
EP1275740B1 (en) 2006-11-22
CN1427897A (zh) 2003-07-02
TW524956B (en) 2003-03-21
CN100338236C (zh) 2007-09-19
CA2403221A1 (en) 2002-07-25
CA2639404A1 (en) 2002-07-25
EP1757707A3 (en) 2007-06-20
EP1275740A1 (en) 2003-01-15

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