EP3480521A1 - Brenner - Google Patents

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Publication number
EP3480521A1
EP3480521A1 EP18193966.1A EP18193966A EP3480521A1 EP 3480521 A1 EP3480521 A1 EP 3480521A1 EP 18193966 A EP18193966 A EP 18193966A EP 3480521 A1 EP3480521 A1 EP 3480521A1
Authority
EP
European Patent Office
Prior art keywords
combustion
core
cooled combustion
fluid
defines
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP18193966.1A
Other languages
English (en)
French (fr)
Inventor
Michael Mattich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Berry Metal Co
Original Assignee
Berry Metal 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 US15/803,175 external-priority patent/US20180306511A1/en
Application filed by Berry Metal Co filed Critical Berry Metal Co
Publication of EP3480521A1 publication Critical patent/EP3480521A1/de
Withdrawn legal-status Critical Current

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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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/78—Cooling burner parts
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • 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
    • 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
    • C21C5/48—Bottoms or tuyéres of converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2200/00—Burners for fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/20—Burner material specifications metallic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2214/00—Cooling
    • 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
    • F27B3/20—Arrangements of heating devices
    • F27B3/205—Burners

Definitions

  • the present disclosure generally relates to an improved fluid cooled enclosure for auxiliary burners used in metal melting, refining and processing, for example, steel making in an electric arc furnace (EAF) or blast furnace.
  • EAF electric arc furnace
  • auxiliary burners are used to assist in the steel making process to add thermal energy by the combustion of fuel, the injection of oxidizing gas for melt refining, foamy slag production or post combustion of carbon monoxide, and the injection of particulates for slag and foamy slag production.
  • the oxidizing gas is introduced as a high velocity stream that may exceed sonic velocities.
  • a combustion can having a similar geometry to existing combustion cans that is capable of housing an ignitor, a thermocouple and/or a flame-eye; that provides greater cooling efficiency while using less copper metal.
  • combustion can of a hybrid design having an internal core and external housing made of copper and an intermediate core made from steel.
  • One aspect of a preferred embodiment of the present disclosure comprises a fluid cooled combustion can, comprising: an internal core housed in an intermediate core; wherein the intermediate core is housed in an external housing; wherein an outer surface of the intermediate core defines one or more ribs that together with an inside surface of the external housing define a cooling fluid circuit that is in fluid communication with a cooling fluid inlet and outlet.
  • an inner surface of the intermediate core defines one or more ribs that together with an outer surface of the internal core define a part of the cooling fluid circuit.
  • the cooling fluid circuit defines a helical path.
  • the internal core and external housing are made of a first material and the intermediate core is made from a second material.
  • the internal core and external housing are made of copper and the intermediate core is made from steel.
  • the internal core defines a laval nozzle.
  • a fluid cooled combustion can comprising: an internal bore housed defined by a combustion can body; and a cooling fluid circuit defined by the combustion can body, wherein the cooling fluid circuit is in fluid communication with a cooling fluid inlet and outlet.
  • the cooling fluid circuit defines a helical path.
  • the internal bore defines a laval nozzle.
  • a preferred fluid cooled combustion can 10 such as for a burner for an EAF (Electric Arc Furnace), blast furnace or other type of metallurgical furnace, of the present disclosure, comprises: an internal core 12 housed in an intermediate core 14; wherein the intermediate core 14 is housed in an external housing 16; wherein an outer surface of the intermediate core 14 defines one or more ribs 15 that together with an inside surface of the external housing 16 defines a cooling fluid circuit 19 that is in fluid communication with a fluid cooling inlet 30 and outlet 32. Ribs 15A disposed on the inner surface of intermediate core 14 also helps to define part of cooling fluid circuit 19 that is in fluid communication with a fluid cooling inlet 30 and outlet 32.
  • the cooling fluid circuit 19 defines a helical path.
  • the internal core 12 and external housing 16 are made of a first material and the intermediate core 14 is made from a second material.
  • An opening 13 in intermediate core 14 allows for cooling fluid to flow more readily on both the inner and outer sides of intermediate core 14 as shown in FIG. 2 .
  • the internal core 12 and external housing 16 are made of copper and the intermediate core 14 is made from steel.
  • the internal bore 24 defines a laval nozzle 22.
  • Another preferred fluid cooled combustion can 10 such as for a burner for an EAF (Electric Arc Furnace), blast furnace or other type of metallurgical furnace, of the present disclosure, comprises: an internal bore 24 defined by the body 13 of the combustion can.
  • the body 13 defines an internal a fluid cooling circuit 17, preferably helical, that is in fluid communication with a fluid cooling inlet and outlet.
  • the internal bore 24 defines a laval nozzle 22.
  • FIG. 4 shows a schematic view of a preferred cooling fluid circuit 40 having a helical section 42 produced by the combustion can 10 of the present disclosure. As shown, inlet flow 44 and outlet flow 45 form part of the cooling fluid circuit 40.
  • FIG. 5 shows a preferred mold 50 for use in manufacturing a preferred combustion can according to the present disclosure.
  • Mold 50 comprises feed sprue 52, three risers 54, outer top core 56, intermediate internal core 58 and base core 60.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Gas Burners (AREA)
EP18193966.1A 2017-11-03 2018-09-12 Brenner Withdrawn EP3480521A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/803,175 US20180306511A1 (en) 2016-11-03 2017-11-03 Combustion can

Publications (1)

Publication Number Publication Date
EP3480521A1 true EP3480521A1 (de) 2019-05-08

Family

ID=63579021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18193966.1A Withdrawn EP3480521A1 (de) 2017-11-03 2018-09-12 Brenner

Country Status (1)

Country Link
EP (1) EP3480521A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110177976A (zh) * 2017-01-17 2019-08-27 西门子股份公司 具有用于燃烧器的空气通道结构和燃料通道结构的燃烧器喷嘴和制造该燃烧器喷嘴的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1310552A (en) * 1969-05-14 1973-03-21 Wendel Sidelor Cooling of equipment exposed to high temperatures
US3826479A (en) * 1973-02-16 1974-07-30 Kurimoto Ltd Tuyere for a melting furnace
DE19903865A1 (de) * 1998-01-30 1999-08-19 Kobe Steel Ltd Windform für einen Hochofen
JP2009046712A (ja) * 2007-08-16 2009-03-05 Jfe Steel Kk 羽口リングおよび羽口リングを設置した高炉羽口
CN202214371U (zh) * 2011-08-05 2012-05-09 烟台鲁宝有色合金有限公司 焊缝后移风口

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1310552A (en) * 1969-05-14 1973-03-21 Wendel Sidelor Cooling of equipment exposed to high temperatures
US3826479A (en) * 1973-02-16 1974-07-30 Kurimoto Ltd Tuyere for a melting furnace
DE19903865A1 (de) * 1998-01-30 1999-08-19 Kobe Steel Ltd Windform für einen Hochofen
JP2009046712A (ja) * 2007-08-16 2009-03-05 Jfe Steel Kk 羽口リングおよび羽口リングを設置した高炉羽口
CN202214371U (zh) * 2011-08-05 2012-05-09 烟台鲁宝有色合金有限公司 焊缝后移风口

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110177976A (zh) * 2017-01-17 2019-08-27 西门子股份公司 具有用于燃烧器的空气通道结构和燃料通道结构的燃烧器喷嘴和制造该燃烧器喷嘴的方法

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