WO2013147402A1 - Dispositif de préchauffage pour busette immergée - Google Patents

Dispositif de préchauffage pour busette immergée Download PDF

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Publication number
WO2013147402A1
WO2013147402A1 PCT/KR2012/011741 KR2012011741W WO2013147402A1 WO 2013147402 A1 WO2013147402 A1 WO 2013147402A1 KR 2012011741 W KR2012011741 W KR 2012011741W WO 2013147402 A1 WO2013147402 A1 WO 2013147402A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
flame
fuel
immersion nozzle
air
Prior art date
Application number
PCT/KR2012/011741
Other languages
English (en)
Korean (ko)
Inventor
김인수
오창용
이경욱
Original Assignee
현대제철 주식회사
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 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to CN201280071877.9A priority Critical patent/CN104245191B/zh
Priority to DE112012006134.9T priority patent/DE112012006134T5/de
Priority to JP2015503100A priority patent/JP5976919B2/ja
Priority claimed from KR1020120156457A external-priority patent/KR101466350B1/ko
Publication of WO2013147402A1 publication Critical patent/WO2013147402A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/60—Pouring-nozzles with heating or cooling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
    • F23C3/004—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for submerged combustion

Definitions

  • the present invention relates to an immersion nozzle preheating device.
  • the tundish used in the continuous casting process receives molten steel that has undergone the steelmaking process and then supplies the molten steel to the playing mold through the immersion nozzle. At this time, if the immersion nozzle for delivering molten steel is not sufficiently preheated, the flow of molten steel is not smooth during the process of transferring from the tundish to the playing mold through the immersion nozzle, such as poor operation and poor quality of the material. This can happen.
  • a preheating apparatus capable of sufficiently preheating the immersion nozzle is required.
  • the apparatus for preheating the immersion nozzle should be such that refractory dropping and cracking does not occur as the hot flame is in direct contact.
  • Embodiments of the present invention provide an immersion nozzle preheating apparatus capable of generating and controlling a stable flame.
  • the flame generating unit for generating a flame by mixing the fuel and air; And a nozzle tip for guiding the generated flame to the outside, wherein the nozzle tip comprises: an injection hole for injecting the flame to the outside; And a guide part configured to guide the generated flame to the injection hole, the lower surface of which is formed to be inclined vertically upward along the direction of the injection hole.
  • the guide portion may be formed in a square pillar shape, and the injection hole may be formed in a slit shape.
  • the guide portion may have an upper surface formed horizontally along the jet hole direction.
  • the width in the vertical direction of the injection port may correspond to the width in the vertical direction of the end of the guide portion.
  • the nozzle tip may further include a swirler to assist mixing of the fuel and the air.
  • the swirler may include a plurality of swing vanes.
  • the swirler may be formed in plural.
  • the flame generating unit comprises a fuel nozzle for supplying the fuel; A plurality of air nozzles formed along the outside of the fuel nozzle and supplying air for combustion of the fuel; And a guide tube configured to receive the fuel nozzle and the air nozzle therein and guide the fuel and the air to the nozzle tip.
  • FIG. 1 is a cross-sectional view of the immersion nozzle preheating apparatus according to an embodiment of the present invention.
  • Figure 2 is a perspective view of the nozzle tip of the immersion nozzle preheater according to an embodiment of the present invention.
  • Figure 3 is a front view of the immersion nozzle preheating apparatus according to an embodiment of the present invention.
  • Figure 4 is a front view of the flame generating unit of the immersion nozzle preheating apparatus according to an embodiment of the present invention.
  • first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • FIG. 1 is a cross-sectional view of an immersion nozzle preheating apparatus according to an embodiment of the present invention
  • Figure 2 is a perspective view of a nozzle tip preheating apparatus nozzle tip according to an embodiment of the present invention
  • Figure 3 is an immersion according to an embodiment of the present invention 4 is a front view of the nozzle preheater
  • FIG. 4 is a front view of the flame generator of the immersion nozzle preheater according to the embodiment of the present invention.
  • the immersion nozzle preheating apparatus stably preheats the immersion nozzle by controlling the spraying direction of the flame, and includes a flame generating unit 100 and a nozzle tip 200. And, the nozzle tip 200 is formed including the injection port 210 and the guide portion 220.
  • the flame generator 100 of the immersion nozzle preheater supplies a fuel nozzle 110 for supplying fuel for generating flame and air for combustion of the fuel. It may include an air nozzle 120.
  • the fuel nozzle 110 is a nozzle for injecting fuel toward the nozzle tip 200
  • the air nozzle 120 is a nozzle which is formed outside the fuel nozzle to inject air for combustion of the fuel toward the nozzle tip 200.
  • the flame generating unit 100 may separate the fuel nozzles 110 and the air nozzles 120 and gradually mix the fuel and air through the respective nozzles, and then gradually increase the stability of the flame. It is.
  • a guide tube 130 for receiving the fuel nozzle 110 and the air nozzle 120 therein.
  • the guide tube 130 is formed along the outside of the air nozzle 120 to guide fuel and air into the nozzle tip 200 and gradually induce mixing of the fuel and air.
  • the air nozzle 120 may be formed in a plurality along the outside of the fuel nozzle (110).
  • the fuel nozzle 110 is located in the center, and may have about 6-8 air nozzles 120 in the circumferential direction around the fuel nozzle 110, and the number of the air nozzles 120 is necessary. Can be added or subtracted accordingly.
  • the fuel nozzle 110 is disclosed at the center, and six air nozzles 120 are disclosed along the outer circumference of the fuel nozzle 110, but the scope of the present invention is not limited thereto.
  • the nozzle tip 200 is coupled to one end of the flame generating unit 100 to guide the flame generated from the flame generating unit 100 to the outside will be.
  • the tundish used in the continuous casting process receives molten steel that has undergone the steelmaking process, and then supplies the molten steel to the playing mold through the immersion nozzle. At this time, if the immersion nozzle for delivering molten steel is not sufficiently preheated, the flow of molten steel is not smooth during the process of transferring from the tundish to the playing mold through the immersion nozzle, such as poor operation and poor quality of the material. This can happen.
  • the above-described problems can be prevented by preheating the immersion nozzle to a temperature desired by the user using the immersion nozzle preheating apparatus according to the present invention.
  • the nozzle tip 200 of the immersion nozzle preheater is a guide for injecting the flame to the injection port 210 and the generated flame to the injection port 210
  • the unit 220 is included.
  • the guide part 220 is a part for controlling the direction of the flame sprayed from the injection hole 210, and may be inclined toward the direction in which the flame is to be sprayed.
  • the nozzle tip 200 provided according to the present embodiment is for use in the immersion nozzle preheating apparatus, and is provided to preheat the immersion nozzle disposed vertically upward with respect to the nozzle tip 200.
  • the flame sprayed through the nozzle tip 200 should also be sprayed vertically upward.
  • the guide part 220 guides the generated flame to the injection hole 210, but the lower surface of the guide part 220 may be formed to be inclined vertically upward in the direction from the end of the flame generating part toward the injection hole 210. have.
  • the guide portion 220 of the immersion nozzle preheating apparatus may be formed in a square pillar shape.
  • the cross section of the square pillar may be formed to be wider than the cross-sectional area of the injection port 210 side.
  • the cross-sectional area of the flame generating unit 100 toward the injection port 210 side may be in the shape of a square pillar narrowing.
  • the flame generated by the flame generating unit 100 guides the flame transmitted from the wide space to the narrow space to collect the flame, so that the flame can be sprayed relatively far.
  • the upper surface of the guide portion 220 may be formed horizontally along the direction of the injection hole 210, and the lower surface may be formed to be inclined vertically upward along the direction of the injection hole 210.
  • the upper surface of the guide portion 220 is formed horizontally, the lower surface is formed to be inclined vertically upward, it is possible to adjust the direction of the sprayed flame in the vertical upward direction.
  • the flame sprayed through the injection port 210 of the nozzle tip 200 is sprayed in the vertical upward direction in the inside of the immersion nozzle to efficiently preheat the immersion nozzle.
  • the injection hole 210 of the immersion nozzle preheating apparatus may have a slit shape having one direction that is relatively thinner and longer than the other direction.
  • the injection hole 210 is formed in a long and thin shape in left and right sides, but the scope of the present invention is not limited thereto, and may be formed in a long and long shape in a vertical direction as necessary.
  • the outer wall covering the injection hole 210 may also be formed in an elongated shape so as to match the shape of the injection hole 210.
  • the injection hole 210 may be formed in a slit shape, and the width of the injection hole 210 may be formed to match the width of the guide part 220 in the vertical direction.
  • the width in the left and right direction of the injection port 210 may also be formed to match the width in the left and right direction of the end of the guide portion 220.
  • the vertical width and the left and right width of the injection port 210 and the width of the vertical direction and the left and right direction of the end portion of the guide portion 220 is formed to match, the flame guided through the guide portion 220 in the injection hole 210 It can be sprayed to the outside without clogging.
  • the immersion nozzle preheating apparatus may further include a swirler 230.
  • Swiveler 230 serves as a flame retarder to assist the mixing of fuel and air so that the flame can be generated more smoothly.
  • the pivot 230 provided according to the present embodiment may further include a plurality of swing vanes 231.
  • the swing blade 231 is a portion that rotates to smoothly mix fuel and air, and may be formed in plural.
  • the number of swinging wings 231 provided according to the present embodiment may be six, but is not limited thereto, and may be added or subtracted within the range in which a similar effect to the present invention can be exerted, which is also included in the scope of the present invention. Can be.
  • the swirler 230 provided according to the present embodiment may be formed in plural, for example, along the length direction of the guide part 220 formed on the nozzle tip 200, inside the guide part 220. Two swirlers 230 may be arranged in the.
  • An ignition unit (not shown) is a portion that generates a flame by igniting the fuel provided to the flame generation unit 100.
  • the ignition unit may generate a spark using an electric device, but is not limited thereto. Any device capable of igniting the fuel may be included in the scope of the present invention.
  • the flame can be stably provided by controlling the spraying direction of the flame by using the immersion nozzle preheater.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

La présente invention porte sur un dispositif de préchauffage pour busette immergée, qui comprend : une unité génératrice de flamme permettant de mélanger du carburant et de l'air et de générer une flamme ; un orifice d'envoi comportant un embout de buse qui sert à guider la flamme générée vers l'extérieur, cet embout de buse envoyant la flamme vers l'extérieur ; et une unité guide qui est destinée à guider la flamme générée vers ledit orifice d'envoi et dont la surface inférieure est inclinée verticalement et vers le haut dans la direction de cet orifice.
PCT/KR2012/011741 2012-03-29 2012-12-28 Dispositif de préchauffage pour busette immergée WO2013147402A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280071877.9A CN104245191B (zh) 2012-03-29 2012-12-28 浸入式喷嘴预热设备
DE112012006134.9T DE112012006134T5 (de) 2012-03-29 2012-12-28 Eintauchdüse-Vorheizvorrichtung
JP2015503100A JP5976919B2 (ja) 2012-03-29 2012-12-28 浸漬ノズルの予熱装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20120032590 2012-03-29
KR10-2012-0032590 2012-03-29
KR10-2012-0156457 2012-12-28
KR1020120156457A KR101466350B1 (ko) 2012-03-29 2012-12-28 침지노즐 예열장치

Publications (1)

Publication Number Publication Date
WO2013147402A1 true WO2013147402A1 (fr) 2013-10-03

Family

ID=49260614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/011741 WO2013147402A1 (fr) 2012-03-29 2012-12-28 Dispositif de préchauffage pour busette immergée

Country Status (4)

Country Link
JP (1) JP5976919B2 (fr)
CN (1) CN104245191B (fr)
DE (1) DE112012006134T5 (fr)
WO (1) WO2013147402A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2715786C2 (ru) * 2015-01-27 2020-03-03 Кнауф Инзулацьон Горелка для плавильного аппарата погружного горения

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107695323A (zh) * 2017-09-14 2018-02-16 云南云铝涌鑫铝业有限公司 模具预热装置及模具组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001349533A (ja) * 2000-06-09 2001-12-21 Babcock Hitachi Kk バーナ装置及び該装置からの燃焼用空気の噴出方法
JP2002206744A (ja) * 2000-12-28 2002-07-26 Toyota Central Res & Dev Lab Inc ガスタービン用燃焼器
JP2002257344A (ja) * 2001-02-26 2002-09-11 Hitachi Ltd ガスタービン燃焼器
KR20110109191A (ko) * 2010-03-30 2011-10-06 현대제철 주식회사 침지노즐용 예열장치

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
JPS61262455A (ja) * 1985-05-11 1986-11-20 Kobe Steel Ltd タンデイツシユノズルの加熱方法
JPS63116728U (fr) * 1987-01-14 1988-07-28
JPH103819A (ja) * 1996-06-14 1998-01-06 Fujikura Ltd 油浸絶縁用プラスチックラミネート紙
DE69735965T2 (de) * 1996-07-19 2007-01-04 Babcock-Hitachi K.K. Brenner
KR100543550B1 (ko) * 2003-08-25 2006-01-20 (주)리메이크코리아 고압 에어 선회식 가스화 버너
JP4934696B2 (ja) * 2009-03-26 2012-05-16 株式会社日立製作所 バーナ及び燃焼器
KR101091366B1 (ko) * 2009-06-19 2011-12-07 주식회사 포스코 소둔로용 가열장치
KR101093666B1 (ko) * 2009-10-07 2011-12-15 주식회사 코렌스 배기열 회수장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001349533A (ja) * 2000-06-09 2001-12-21 Babcock Hitachi Kk バーナ装置及び該装置からの燃焼用空気の噴出方法
JP2002206744A (ja) * 2000-12-28 2002-07-26 Toyota Central Res & Dev Lab Inc ガスタービン用燃焼器
JP2002257344A (ja) * 2001-02-26 2002-09-11 Hitachi Ltd ガスタービン燃焼器
KR20110109191A (ko) * 2010-03-30 2011-10-06 현대제철 주식회사 침지노즐용 예열장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2715786C2 (ru) * 2015-01-27 2020-03-03 Кнауф Инзулацьон Горелка для плавильного аппарата погружного горения
US10781126B2 (en) 2015-01-27 2020-09-22 Knauf Insulation Burner for submerged combustion melter

Also Published As

Publication number Publication date
CN104245191B (zh) 2016-02-10
JP5976919B2 (ja) 2016-08-24
JP2015518426A (ja) 2015-07-02
DE112012006134T5 (de) 2015-01-08
CN104245191A (zh) 2014-12-24

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