JP2007139389A - Distal end part structure of heat storage type burner - Google Patents

Distal end part structure of heat storage type burner Download PDF

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JP2007139389A
JP2007139389A JP2005337529A JP2005337529A JP2007139389A JP 2007139389 A JP2007139389 A JP 2007139389A JP 2005337529 A JP2005337529 A JP 2005337529A JP 2005337529 A JP2005337529 A JP 2005337529A JP 2007139389 A JP2007139389 A JP 2007139389A
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nozzle
heat storage
tip
refractory
baffle
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JP4662840B2 (en
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Toyohiko Morita
豊彦 森田
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Nippon Steel Corp
Nippon Steel Engineering Co Ltd
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Nippon Steel Corp
Nippon Steel Engineering Co Ltd
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    • 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

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a distal end part structure of a heat storage type burner capable of maintaining a sealing performance of a sealing ring even if an outer circumference fire-proof material of a nozzle part is damaged. <P>SOLUTION: In the distal end part structure of the heat storage type burner having the nozzle part 1 mounted on a baffle 4 with the sealing ring 5 provided between a distal end of the outer circumference fire-proof material 1c and the baffle 4 made of a fire-proof material and a regenerator storing a heat storage object, a metal ring 6 is attached to the distal end of the outer circumference fire-proof material 1c. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、鋼帯や鋼材等の被加熱体の加熱に使用する蓄熱式バーナに関し、特にその先端部構造に関する。   The present invention relates to a regenerative burner used for heating an object to be heated such as a steel strip or a steel material, and more particularly to a tip portion structure thereof.

従来より、鋼帯や鋼材等を圧延するにあたり、この鋼帯や鋼材等を加熱炉において加熱することが行われており、近年においては、その加熱用に蓄熱式燃焼装置が実用化されてきている（例えば特許文献１参照）。   Conventionally, when rolling a steel strip or steel material, the steel strip or steel material has been heated in a heating furnace. In recent years, a regenerative combustion apparatus has been put to practical use for heating. (For example, refer to Patent Document 1).

図３は、この蓄熱式燃焼装置における従来の蓄熱式バーナの構造例を示し、（ａ）はその断面図、（ｂ）は（ａ）のＡ−Ａ線矢視図である。同図に示すように、蓄熱式バーナは、燃料ノズル１ａを備えたノズル部１と蓄熱体２ａを収容した蓄熱室２とを有し、蓄熱式燃焼装置は通常一対の蓄熱式バーナを備える。そして、操業時には、一方の蓄熱式バーナにおいて蓄熱室２を通して加熱された燃焼用空気をノズル部１の周囲から供給して燃料ノズル１ａから噴射された燃料ガスを燃焼させ加熱炉３を加熱する一方、他方の蓄熱式バーナにおいて燃焼排ガスを加熱炉３から蓄熱室２を通して吸引して蓄熱し排出させる操作を交互に行う。   FIG. 3 shows an example of the structure of a conventional regenerative burner in this regenerative combustion apparatus, in which (a) is a cross-sectional view thereof, and (b) is a view taken along the line AA of (a). As shown in the figure, the regenerative burner has a nozzle portion 1 having a fuel nozzle 1a and a regenerative chamber 2 in which a regenerator 2a is accommodated, and a regenerative combustion apparatus usually has a pair of regenerative burners. At the time of operation, the combustion air heated through the heat storage chamber 2 in one heat storage burner is supplied from the periphery of the nozzle portion 1 to burn the fuel gas injected from the fuel nozzle 1a to heat the heating furnace 3. In the other regenerative burner, the operation of sucking the combustion exhaust gas from the heating furnace 3 through the heat storage chamber 2 to store and discharge the heat is performed alternately.

この蓄熱式バーナでは燃焼空気温度が１０００℃以上と高く、また蓄熱中は高温の燃焼排ガスを吸引するため、燃料ノズル１ａを冷却する必要があり、燃料ノズル１ａの周囲に冷却用のエアーノズル１ｂを配置し、その周囲に外周耐火物１ｃを施工して燃料ノズル１ａおよびエアーノズル１ｂの温度を下げている。   In this regenerative burner, the combustion air temperature is as high as 1000 ° C. or higher, and during the heat storage, the high-temperature combustion exhaust gas is sucked. Therefore, it is necessary to cool the fuel nozzle 1a, and a cooling air nozzle 1b around the fuel nozzle 1a. The outer peripheral refractory 1c is constructed around the periphery of the fuel nozzle 1a to lower the temperature of the fuel nozzle 1a and the air nozzle 1b.

図４は、図３に示す従来の蓄熱式バーナの先端部構造を示す断面図である。同図に示すように、ノズル部１の加熱炉側は、蓄熱式バーナ先端部のバッフル４に差し込まれ、もう一方がバーナ外壁７に固定されて装着されるが、バッフル４が耐火物製であり寸法精度の面からノズル先端外周面との隙間をゼロにすることはできない。また、ノズル自体が温度の上昇により伸びるためある程度の隙間が必要になる。そこで、高温の燃焼用空気あるいは燃焼排ガスがノズル先端部分を通過するのを防止するため、シール構造としてノズルの伸びを吸収しながらシールできるように、ノズル部１の外周耐火物１ｃ先端とバッフル４との間にセラミックファイバー等からなるシールリング５を配置している。すなわち、従来の蓄熱式バーナの先端部構造では、シールリング５を耐火物同士で挟み込む構造としている。   FIG. 4 is a cross-sectional view showing the tip structure of the conventional heat storage burner shown in FIG. As shown in the figure, the heating furnace side of the nozzle unit 1 is inserted into the baffle 4 at the tip of the regenerative burner, and the other is fixedly attached to the burner outer wall 7, but the baffle 4 is made of refractory. It is impossible to make the gap between the surface of the dimensional accuracy and the outer peripheral surface of the nozzle tip zero. Further, since the nozzle itself extends due to a rise in temperature, a certain gap is required. Therefore, in order to prevent high-temperature combustion air or combustion exhaust gas from passing through the nozzle tip portion, the tip of the outer peripheral refractory 1c and the baffle 4 of the nozzle portion 1 can be sealed while absorbing the extension of the nozzle as a seal structure. A seal ring 5 made of ceramic fiber or the like is disposed between the two. That is, in the tip part structure of the conventional heat storage burner, the seal ring 5 is sandwiched between refractories.

しかし、蓄熱式バーナにおいては操業時の熱により、金属製のノズル部１が膨張・収縮し、その周囲の外周耐火物１ｃが破損することがある。また、ノズル部の取り付け、取り外し時に、バッフル４などへの衝突により、同様に外周耐火物１ｃが破損することがある。また、高温の燃焼用空気および燃焼排ガスがシールリング５表面を高速で通過するため、シールリング５が削られて破損することがある。   However, in the regenerative burner, the metal nozzle part 1 expands and contracts due to heat during operation, and the peripheral refractory 1c around it may be damaged. Moreover, the outer periphery refractory 1c may be similarly damaged by the collision with the baffle 4 etc. at the time of attachment and removal of the nozzle part. Moreover, since the high-temperature combustion air and combustion exhaust gas pass through the surface of the seal ring 5 at a high speed, the seal ring 5 may be scraped and damaged.

このようにノズル部１の外周耐火物１ｃが破損した場合、従来のようにシールリング５を耐火物同士で挟み込む構造では、シールリング５の押さえが効かなくなりシール性がなくなるため、図５に示すように高温の燃焼用空気あるいは燃焼排ガスがノズル先端部を流れ、燃料ノズル１ａおよびエアーノズル１ｂ等の変形や溶損が発生する。また、シールリング５が破損した場合もシール性がなくなり、燃料ノズル１ａおよびエアーノズル１ｂ等の変形や溶損が発生する。
特開２００４−４４８２７号公報 Thus, when the outer periphery refractory 1c of the nozzle part 1 is damaged, the structure in which the seal ring 5 is sandwiched between the refractories as in the prior art, the pressing of the seal ring 5 is not effective and the sealing performance is lost. As described above, high-temperature combustion air or combustion exhaust gas flows through the nozzle tip, and the fuel nozzle 1a and the air nozzle 1b are deformed or melted. Further, when the seal ring 5 is broken, the sealing performance is lost, and the fuel nozzle 1a and the air nozzle 1b are deformed or melted.
JP 2004-44827 A

本発明が解決しようとする課題は、ノズル部の外周耐火物が破損してもシールリングによるシール性を維持することができる蓄熱式バーナの先端部構造を提供することにある。   The problem to be solved by the present invention is to provide a tip structure of a regenerative burner that can maintain the sealing performance by the seal ring even if the outer periphery refractory of the nozzle portion is damaged.

本発明は、シールリングと接するノズル部の外周耐火物の先端に金属製リングを取り付けることによって上記課題を解決した。   This invention solved the said subject by attaching a metal ring to the front-end | tip of the outer periphery refractory material of the nozzle part which contact | connects a seal ring.

すなわち、本発明は、外周耐火物の先端と耐火物製のバッフルとの間にシールリングを配置してバッフルに装着されるノズル部と、蓄熱体を収容した蓄熱室とを有する蓄熱式バーナの先端部構造において、前記外周耐火物の先端に金属製リングを取り付けたことを特徴とするものである。   That is, the present invention relates to a regenerative burner having a nozzle portion that is mounted on the baffle by arranging a seal ring between the tip of the outer periphery refractory and the baffle made of refractory, and a heat storage chamber that houses the heat storage body. In the tip portion structure, a metal ring is attached to the tip of the outer peripheral refractory.

このようにノズル部の外周耐火物の先端に金属製リングを取り付けたことで、外周耐火物が破損したとしても、金属製リングによる押さえが効くためシールリングによるシール性が低下することはない。   By attaching the metal ring to the tip of the outer peripheral refractory of the nozzle portion in this way, even if the outer peripheral refractory is damaged, the pressing performance by the metal ring is effective and the sealing performance by the seal ring does not deteriorate.

また、本発明では、ノズル部を装着する耐火物製のバッフルに段部を設け、この段部にシールリングを配置することが好ましい。このようにすることで、ノズル部を装着するバッフルの端部（角部）が破損した場合でも、バッフル内へシールリングが嵌り込んでいるためシール性が低下することはない。加えて、シールリングの周囲を高温の燃焼用空気や燃焼排ガスが高速で流れることがないため、シールリングの破損を防ぐことができる。   Moreover, in this invention, it is preferable to provide a step part in the baffle made from a refractory material which mounts a nozzle part, and to arrange | position a seal ring in this step part. By doing in this way, even if the end part (corner part) of the baffle to which the nozzle part is mounted is damaged, the sealing performance is not lowered because the seal ring is fitted into the baffle. In addition, since high-temperature combustion air and combustion exhaust gas do not flow at high speed around the seal ring, the seal ring can be prevented from being damaged.

さらに、本発明では、金属製リングは、ノズル部の外周耐火物の厚さの略２／３の幅とし、前記外周耐火物の外周から露出しないように取り付けることが好ましい。金属製リングの幅を、ノズル部の外周耐火物の厚さの略２／３程度とすることで、確実にシールリングを押さえることができると共に、ノズル部の外周耐火物の外周から露出しないように取り付けることで、金属製リングが高温にさらされることがないので、長寿命化を図れる。   Furthermore, in the present invention, it is preferable that the metal ring has a width that is approximately 2/3 of the thickness of the outer peripheral refractory of the nozzle portion and is attached so as not to be exposed from the outer periphery of the outer peripheral refractory. By setting the width of the metal ring to about 2/3 of the thickness of the outer peripheral refractory of the nozzle part, the seal ring can be securely pressed and not exposed from the outer periphery of the outer peripheral refractory of the nozzle part. By attaching to the metal ring, the metal ring is not exposed to high temperatures, so that the life can be extended.

本発明によれば、ノズル部の外周耐火物が破損したとしてもシールリングによるシール性を維持することができ、高温の燃焼用空気や燃焼排ガスがノズル先端部を流れることがないため、燃料ノズル等の変形や溶損の発生を防止することができる。   According to the present invention, even if the outer peripheral refractory of the nozzle portion is damaged, the sealing performance by the seal ring can be maintained, and high-temperature combustion air and combustion exhaust gas do not flow through the nozzle tip portion, so that the fuel nozzle It is possible to prevent the occurrence of deformation and melting damage.

以下、図面に示す実施例に基づき本発明の実施の形態を説明する。   Embodiments of the present invention will be described below based on examples shown in the drawings.

図１は、本発明の蓄熱式バーナの先端部構造を示す断面図である。同図に示す先端部構造以外の構造は、図３に示した従来のものと同一である。すなわち、蓄熱式バーナは、燃料ノズル１ａを備えたノズル部１と蓄熱体２ａを収容した蓄熱室２とを有する。そして、操業時には、一方の蓄熱式バーナにおいて蓄熱室２を通して加熱された燃焼用空気をノズル部１の周囲から供給して燃料ノズル１ａから噴射された燃料ガスを燃焼させ加熱炉３を加熱する一方、他方の蓄熱式バーナにおいて燃焼排ガスを加熱炉３から蓄熱室２を通して吸引して蓄熱し排出させる操作を交互に行う。   FIG. 1 is a cross-sectional view showing the tip structure of a heat storage burner of the present invention. Structures other than the tip portion structure shown in the figure are the same as the conventional one shown in FIG. That is, the heat storage type burner has a nozzle portion 1 having a fuel nozzle 1a and a heat storage chamber 2 in which a heat storage body 2a is accommodated. At the time of operation, the combustion air heated through the heat storage chamber 2 in one heat storage burner is supplied from the periphery of the nozzle portion 1 to burn the fuel gas injected from the fuel nozzle 1a to heat the heating furnace 3. In the other regenerative burner, the operation of sucking the combustion exhaust gas from the heating furnace 3 through the heat storage chamber 2 to store and discharge the heat is performed alternately.

また、ノズル部１では、燃料ノズル１ａを冷却するために、燃料ノズル１ａの周囲に冷却用のエアーノズル１ｂを配置し、その周囲に外周耐火物１ｃを施工して燃料ノズル１ａおよびエアーノズル１ｂの温度を下げるようにしている。   Further, in the nozzle portion 1, in order to cool the fuel nozzle 1a, a cooling air nozzle 1b is arranged around the fuel nozzle 1a, and an outer periphery refractory 1c is constructed around the fuel nozzle 1a to thereby cool the fuel nozzle 1a and the air nozzle 1b. Try to lower the temperature.

ノズル部１の加熱炉側は、蓄熱式バーナ先端部のバッフル４に差し込まれ、もう一方がバーナ外壁７（図３参照）に固定されて装着されるが、本発明では、図１に示すようにノズル部１の外周耐火物１ｃの先端に金属製リング６を取り付け、この金属製リング６を設けた外周耐火物１ｃ先端とバッフル４との間にセラミックファイバー等からなるシールリング５を配置している。   The heating furnace side of the nozzle part 1 is inserted into the baffle 4 at the tip of the regenerative burner, and the other is fixedly attached to the burner outer wall 7 (see FIG. 3). In the present invention, as shown in FIG. A metal ring 6 is attached to the tip of the outer peripheral refractory 1 c of the nozzle portion 1, and a seal ring 5 made of ceramic fiber or the like is disposed between the tip of the outer peripheral refractory 1 c provided with the metal ring 6 and the baffle 4. ing.

金属製リング６は、燃料ノズル１ａの周囲に配置したエアーノズル１ｂの外周に接するように取り付けられ、その幅ｔは外周耐火物の厚さＴの２／３程度とし、金属製リング６が外周耐火物１ｃの外周から露出しないようにしている。金属製リング６の材質としては、耐熱性の点から例えばＳＵＳ３０９、ＳＵＳ３１０等のステンレスが好ましく、厚みとしては、４〜６ｍｍが好ましい。   The metal ring 6 is attached so as to be in contact with the outer periphery of the air nozzle 1b disposed around the fuel nozzle 1a, the width t is about 2/3 of the thickness T of the outer peripheral refractory, and the metal ring 6 is It is made not to be exposed from the outer periphery of the refractory 1c. The material of the metal ring 6 is preferably stainless steel such as SUS309 or SUS310 from the viewpoint of heat resistance, and the thickness is preferably 4 to 6 mm.

以上のように、本発明では、ノズル部１の外周耐火物１ｃの先端に金属製リング６を取り付けたので、外周耐火物１ｃが破損したとしても、金属製リング６による押さえが効くためシールリング５によるシール性が低下することはない。   As described above, in the present invention, since the metal ring 6 is attached to the tip of the outer peripheral refractory 1c of the nozzle portion 1, even if the outer peripheral refractory 1c is damaged, the pressing by the metal ring 6 is effective, so the seal ring. The sealing performance due to 5 does not deteriorate.

図２は、本発明の蓄熱式バーナの先端部構造の他の例を示す断面図である。   FIG. 2 is a cross-sectional view showing another example of the tip portion structure of the regenerative burner of the present invention.

この実施例では、図２に示すように、蓄熱式バーナ先端のバッフル４の端部に段部４ａを設け、この段部４ａにシールリング５を配置したものである。これにより、バッフル４の端部が破損した場合でも、バッフル４内へシールリング５が嵌り込んでいるためシール性が低下することはない。   In this embodiment, as shown in FIG. 2, a step 4a is provided at the end of the baffle 4 at the tip of the regenerative burner, and a seal ring 5 is disposed on the step 4a. Thereby, even when the end portion of the baffle 4 is damaged, the sealing performance is not deteriorated because the seal ring 5 is fitted into the baffle 4.

本発明の蓄熱式バーナの先端部構造を示す断面図である。It is sectional drawing which shows the front-end | tip part structure of the thermal storage type burner of this invention. 本発明の蓄熱式バーナの先端部構造の他の例を示す断面図である。It is sectional drawing which shows the other example of the front-end | tip part structure of the thermal storage type burner of this invention. 従来の蓄熱式バーナの構造例を示し、（ａ）はその断面図、（ｂ）は（ａ）のＡ−Ａ線矢視図である。The structural example of the conventional thermal storage type burner is shown, (a) is the sectional drawing, (b) is the AA arrow directional view of (a). 従来の蓄熱式バーナの先端部構造を示す断面図である。It is sectional drawing which shows the front-end | tip part structure of the conventional heat storage type burner. 従来の蓄熱式バーナの先端部構造においてノズル部の外周耐火物が破損した場合を示す断面図である。It is sectional drawing which shows the case where the outer periphery refractory of a nozzle part is damaged in the front-end | tip part structure of the conventional heat storage type burner.

符号の説明Explanation of symbols

１ ノズル部
１ａ 燃料ノズル
１ｂ エアーノズル
１ｃ 外周耐火物
２ 蓄熱室
２ａ 蓄熱体
３ 加熱炉
４ バッフル
４ａ 段部
５ シールリング
６ 金属製リング
７ バーナ外壁 DESCRIPTION OF SYMBOLS 1 Nozzle part 1a Fuel nozzle 1b Air nozzle 1c Peripheral refractory 2 Heat storage chamber 2a Heat storage body 3 Heating furnace 4 Baffle 4a Step part 5 Seal ring 6 Metal ring 7 Burner outer wall

Claims (3)

外周耐火物の先端と耐火物製のバッフルとの間にシールリングを配置してバッフルに装着されるノズル部と、蓄熱体を収容した蓄熱室とを有する蓄熱式バーナの先端部構造において、
前記外周耐火物の先端に金属製リングを取り付けたことを特徴とする蓄熱式バーナの先端部構造。 In the tip part structure of a regenerative burner having a nozzle part mounted on the baffle by placing a seal ring between the tip of the outer peripheral refractory and the baffle made of refractory, and a heat storage chamber containing a heat storage body,
A tip structure of a regenerative burner, wherein a metal ring is attached to the tip of the outer peripheral refractory. ノズル部を装着する耐火物製のバッフルに段部を設け、この段部に前記シールリングを配置した請求項１に記載の蓄熱式バーナの先端部構造。   The tip part structure of the regenerative burner according to claim 1, wherein a step portion is provided on a baffle made of a refractory to which the nozzle portion is mounted, and the seal ring is disposed on the step portion. 金属製リングは、前記外周耐火物の厚さの略２／３の幅を有し、前記外周耐火物の外周から露出しないように取り付けられている請求項１又は２に記載の蓄熱式バーナの先端部構造。   The regenerative burner according to claim 1 or 2, wherein the metal ring has a width that is approximately 2/3 of the thickness of the outer peripheral refractory, and is attached so as not to be exposed from the outer periphery of the outer peripheral refractory. Tip structure.
JP2005337529A 2005-11-22 2005-11-22 Tip structure of heat storage burner Expired - Fee Related JP4662840B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11885489B2 (en) 2016-07-08 2024-01-30 Nova Chemicals (International) S.A. Metallic burner tiles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0777388A (en) * 1993-09-06 1995-03-20 Daido Steel Co Ltd Vertical muffle furnace
JPH0738814U (en) * 1993-12-20 1995-07-14 株式会社十川ゴム製造所 Seal ring
JP2001182915A (en) * 1999-12-28 2001-07-06 Rozai Kogyo Kaisha Ltd Cooler of fuel nozzle tube of regenerative burner
JP2004044827A (en) * 2002-07-09 2004-02-12 Chugai Ro Co Ltd Regenerative combustion apparatus and heating furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0777388A (en) * 1993-09-06 1995-03-20 Daido Steel Co Ltd Vertical muffle furnace
JPH0738814U (en) * 1993-12-20 1995-07-14 株式会社十川ゴム製造所 Seal ring
JP2001182915A (en) * 1999-12-28 2001-07-06 Rozai Kogyo Kaisha Ltd Cooler of fuel nozzle tube of regenerative burner
JP2004044827A (en) * 2002-07-09 2004-02-12 Chugai Ro Co Ltd Regenerative combustion apparatus and heating furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11885489B2 (en) 2016-07-08 2024-01-30 Nova Chemicals (International) S.A. Metallic burner tiles

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