JPH10219320A - Structure for fitting protecting tube for cooling water pipe in stave cooler to furnace shell - Google Patents
Structure for fitting protecting tube for cooling water pipe in stave cooler to furnace shellInfo
- Publication number
- JPH10219320A JPH10219320A JP4284797A JP4284797A JPH10219320A JP H10219320 A JPH10219320 A JP H10219320A JP 4284797 A JP4284797 A JP 4284797A JP 4284797 A JP4284797 A JP 4284797A JP H10219320 A JPH10219320 A JP H10219320A
- Authority
- JP
- Japan
- Prior art keywords
- protecting tube
- cooling water
- diameter
- stave cooler
- water pipe
- 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- Withdrawn
Links
Landscapes
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は高炉炉壁等の冷却に
利用されるステーブクーラーにおける冷却水管保護管の
鉄皮との取り付け構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a cooling water pipe protection tube to a steel shell in a stave cooler used for cooling a blast furnace wall or the like.
【０００２】[0002]
【従来の技術】例えば、高炉の炉壁を冷却するために、
図５に示すように鉄皮２の内側にステーブクーラー１を
配し、そのステーブクーラー１に鋳ぐるんだ冷却水管５
に冷却水を流し、炉内の高熱が鉄皮に伝わることを防止
している。このステーブクーラー冷却水管部の鉄皮への
取り付け構造に関しては、従来よりいろいろな技術が紹
介されている。例えば、2. Description of the Related Art For example, in order to cool a furnace wall of a blast furnace,
As shown in FIG. 5, a stave cooler 1 is disposed inside a steel shell 2, and a cast cooling water pipe 5 is provided in the stave cooler 1.
Cooling water is supplied to the furnace to prevent high heat in the furnace from being transmitted to the steel shell. Various techniques have been introduced for the mounting structure of the stove cooler cooling water pipe to the steel shell. For example,
【０００３】（１）「高炉の冷却装置（実開昭５５ー１
３９６０）」では、保護管を板状材のみで高炉鉄皮に取
付ける構造 （２）「ステーブクーラーの取り付け構造（実開平１ー
１６１２４４）」では、保護管と保護管の周囲を取り囲
む不定形耐火物との間に可縮性材料層又は空間部とを備
えていることを特徴とするステーブクーラーの取り付け
構造[0003] (1) "Blast furnace cooling system (Japanese Utility Model Laid-Open No. 55-1)
3960) ”, a structure in which a protective tube is attached to a blast furnace steel shell using only a plate-like material. (2) In a“ stave cooler mounting structure (actually disclosed 1-16-1244) ”, an irregular-shaped fireproof tube surrounding the protective tube and the protective tube. Characterized by comprising a shrinkable material layer or a space portion between the stove cooler and the object.
【０００４】（３）「高炉ステーブ冷却管（実開平２ー
５１２４１）」では、冷却水管と保護管の間に可縮性を
有する材料を装填する構造 （４）「高炉炉体冷却用水冷金物の取り付け構造（実開
平５ー５８３９）」では、保護管のうち上方又は下方の
２本を炉体鉄皮と完全固定とし、他方の２本を伸縮管に
よる自由支持構造とする取り付け構造等が知られてい
る。(3) The “blast furnace stave cooling pipe (actually disclosed in Japanese Utility Model Application Laid-Open No. 2-51241)” has a structure in which a material having shrinkage is loaded between the cooling water pipe and the protection pipe. In the mounting structure of (No. 5-5839), the upper and lower two of the protective tubes are completely fixed to the furnace shell, and the other two are freely supported by telescopic tubes. Are known.
【０００５】従来例においては、図３に示すようなコー
ミングと称されるガスシールボックス７の構造あるい
は、図４に示すようなダブリングプレート８の構造を設
け、冷却水配管の保護管６との間は、シールプレート１
０を溶接することでガスシールを行ってきた。このシー
ルプレート１０は一般構造用圧延鋼材を使用し、同芯円
状の平板であり、ステーブクーラーが炉内の高温によっ
て熱膨張する際には、保護管との溶接部に高い局部応力
が発生する。In the conventional example, a structure of a gas seal box 7 called combing as shown in FIG. 3 or a structure of a doubling plate 8 as shown in FIG. Between, seal plate 1
Gas sealing has been performed by welding 0. This seal plate 10 is made of rolled steel for general structure and is a concentric flat plate. When the stave cooler thermally expands due to high temperature in the furnace, a high local stress is generated at a welded portion with the protective tube. I do.
【０００６】この局部応力は保護管付け根部からシール
プレート溶接部までの距離の短いダブリングプレート構
造の方が高くなる。このため、高炉内壁の温度が高い高
熱負荷部では、局部応力の軽減のためガスシールボック
ス構造が不可避であった。The local stress is higher in the doubling plate structure where the distance from the base of the protective tube to the seal plate weld is short. For this reason, in the high heat load part where the temperature of the inner wall of the blast furnace is high, the gas seal box structure is inevitable to reduce the local stress.
【０００７】[0007]
【発明が解決しようとする課題】ところが、上述のガス
シールボックス構造では、 （１）ガスシールボックスの形状が複雑で且つ大きく、
製作に要する期間と費用が多大となる。 （２）溶接箇所が多く、施工や検査の費用が多大とな
る。 （３）上下、あるいは左右に隣接するガスシールボック
スの間隔が狭く、溶接作業が困難となる。However, in the above gas seal box structure, (1) the shape of the gas seal box is complicated and large,
The time and cost required for the production are enormous. (2) There are many welding points, and the cost of construction and inspection is enormous. (3) The interval between the gas seal boxes adjacent vertically or horizontally is narrow, and welding work becomes difficult.
【０００８】（４）ステーブクーラー単体において冷却
水管の給水部および排水部を極力、ステーブクーラーの
端に寄せ、コーナー部の冷却効果を高めようとする際、
隣接するステーブクーラーのガスシールボックスの外形
寸法が制約となる場合がある。 （５）鉄皮から突き出す冷却水管の長さが長くなり、点
検歩廊が鉄皮から遠くなるといった難点があった。(4) When the water supply part and the drainage part of the cooling water pipe are moved to the end of the stave cooler as much as possible in the stave cooler alone to improve the cooling effect of the corner part,
The outer dimensions of the gas seal box of the adjacent stove cooler may be restricted. (5) There is a problem that the length of the cooling water pipe protruding from the steel is long and the inspection corridor is far from the steel.
【０００９】本発明は、上述の観点からステーブクーラ
ー冷却水管部の鉄皮への取り付け構造において、ガスシ
ールボックス構造なしでも、ステーブクーラーの熱膨張
変位を吸収できるようにするもので、当該部の構造を単
純化し、信頼性を向上させるとともに、製作、検査にお
ける多大な費用を削減できる方法を提供するものであ
る。According to the present invention, in view of the above, in a structure for attaching a cooling water pipe portion of a stave cooler to a steel shell, a thermal expansion displacement of the stave cooler can be absorbed without a gas seal box structure. It provides a method that simplifies the structure, improves reliability, and can reduce enormous costs in manufacturing and inspection.
【００１０】[0010]
【課題を解決するための手段】このステーブクーラー冷
却水管部の鉄皮への取り付け構造においては、シール部
材をその一端が保護管に嵌合し得る径（Ａ）、他端が該
径より大なる径（Ｂ）で筒状体に形成し、且つ、該筒状
体の筒面をラッパ状の曲面になして構成し、該シール部
材の一端を保護管に、他端を鉄皮に溶接したことを特徴
とする。即ち、このシール部材は、鉄皮と全周で接する
と同時に保護管の外面とも全周で接することができ、筒
状体の筒面をラッパ状の曲面、又は、筒面をその縦断面
が折れ線状の曲面となした立体形状である。In this structure for attaching the cooling water pipe portion of the stave cooler to the steel shell, one end of the sealing member has a diameter (A) that can be fitted to the protection tube, and the other end has a diameter larger than the diameter. A cylindrical body having a diameter (B), and the cylindrical surface of the cylindrical body is formed into a trumpet-shaped curved surface, and one end of the seal member is welded to the protective tube, and the other end is welded to the steel shell. It is characterized by having done. In other words, this seal member can be in contact with the outer periphery of the protective tube all around at the same time as it comes into contact with the steel shell all around, and the cylindrical surface of the cylindrical body has a trumpet-shaped curved surface, or the cylindrical surface has a vertical section. It is a three-dimensional shape with a polygonal curved surface.
【００１１】このラッパ状のシール部材はステーブクー
ラーの熱膨張による保護管の変位に容易に追従し、保護
管との溶接部に発生する局部応力をおさえる事ができ
る。従って、従来のようなガスシールボックス構造を取
る必要がない。また、筒状体の材質を熱間圧延軟鋼板と
することで、部材の伸びが一般構造用圧延鋼材に比べ極
めて大きいため、さらに保護管の変位に容易に追従し得
る。The trumpet-shaped seal member can easily follow the displacement of the protection tube due to the thermal expansion of the stave cooler, and can reduce the local stress generated at the welding portion with the protection tube. Therefore, it is not necessary to adopt a conventional gas seal box structure. In addition, when the material of the tubular body is a hot-rolled mild steel sheet, the elongation of the member is much larger than that of a rolled steel material for general structure, so that the displacement of the protective tube can be easily followed.
【００１２】[0012]
【発明の実施の形態】以下に、本発明を図面に示す例に
基づき説明する。図１は、本発明に従ったステーブクー
ラー冷却水管部の鉄皮２への取り付け構造例を示す。本
実施例においては、保護管６と鉄皮２を接合するシール
部材９を、その一端が保護管６に嵌合し得る径（Ａ）、
他端が該径より大なる径（Ｂ）で筒状体に形成し、且
つ、該筒状体の筒面をラッパ状の曲面になして構成し、
該シール部材９の一端を保護管６に、他端を鉄皮２に溶
接する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on examples shown in the drawings. FIG. 1 shows an example of an attachment structure of a stove cooler cooling water pipe section to a steel shell 2 according to the present invention. In the present embodiment, the seal member 9 for joining the protective tube 6 and the steel shell 2 has a diameter (A) at which one end can be fitted to the protective tube 6,
The other end is formed in a cylindrical body with a diameter (B) larger than the diameter, and the cylindrical surface of the cylindrical body is formed into a trumpet-shaped curved surface,
One end of the seal member 9 is welded to the protective tube 6 and the other end is welded to the steel shell 2.
【００１３】即ち、このシール部材９は、鉄皮２と全周
で接すると同時に保護管６の外面とも全周で接すること
ができ、筒状体の筒面をラッパ状の曲面となした立体形
状である。筒状体の筒面をラッパ状の曲面による連続的
な接合面とすることで、ステーブクーラー１の熱膨張に
よる保護管６の変位に容易に追従し、保護管６との溶接
部に発生する局部応力をおさえている。That is, the seal member 9 can be in contact with the steel shell 2 on the entire circumference and also on the outer surface of the protection tube 6 on the entire circumference, and the three-dimensional structure in which the cylindrical surface of the cylindrical body is formed into a trumpet-shaped curved surface. Shape. By making the cylindrical surface of the cylindrical body a continuous joining surface with a trumpet-shaped curved surface, it easily follows the displacement of the protective tube 6 due to the thermal expansion of the stave cooler 1 and is generated at a welded portion with the protective tube 6. Local stress is suppressed.
【００１４】ある測定結果によれば、ステーブクーラー
の据付時から稼働時の間の熱膨張量は、最大でも上下方
向に片側約２ｍｍ程度であり、稼働後の送風と休風の繰
り返し回数は、１炉代約１５年間として、高々４００回
程度である。又、その変化もきわめて長時間の間に生じ
るものであり、伸縮管を用いるまでもなく、本構造にて
十分な強度を維持できる。According to a certain measurement result, the amount of thermal expansion from the time of installation of the stave cooler to the time of operation is about 2 mm at the maximum in one direction in the vertical direction. It has been about 400 at most for 15 years. Also, the change occurs during a very long time, and the structure can maintain a sufficient strength without using an elastic tube.
【００１５】図２の別実施例においては筒状シール部材
９の筒面をその縦断面が折れ線状の曲面となした立体形
状としたものである。シール部材をラッパ状の筒状体に
加工する方法は、プレスによるのが、大量生産に適して
いる。筒面をその縦断面が折れ線状の曲面となすこと
で、プレス加工がより容易となる。In another embodiment shown in FIG. 2, the cylindrical surface of the cylindrical sealing member 9 has a three-dimensional shape in which the longitudinal section is a curved surface having a broken line. The method of processing the seal member into a trumpet-shaped cylindrical body is by pressing, which is suitable for mass production. By forming the cylindrical surface into a curved surface whose vertical section is a broken line, press working becomes easier.
【００１６】また、シール部材の材質に熱間圧延軟鋼板
を用いると、その高い延展性によりさらに容易な変位の
追従が可能となる。ちなみに、該熱間圧延軟鋼板の伸び
は、５号試験片で３９％以上であり、一般構造用圧延鋼
材の２１％以上と比して約２倍も変形能に富む。他に自
動車構造用熱間圧鋼板を使用しても同様な効果が得られ
る。また、本実施例では、一本の保護管に一つの鉄皮開
孔を設けることで、ダブリングプレート８さえも無くし
た構造としている。Further, when a hot-rolled mild steel sheet is used as the material of the seal member, it is possible to follow the displacement more easily due to its high ductility. Incidentally, the elongation of the hot-rolled mild steel sheet is 39% or more in the No. 5 test piece, which is about twice as rich in deformability as 21% or more of the rolled steel material for general structure. Similar effects can be obtained by using a hot-pressed steel sheet for automobile structure. Further, in the present embodiment, the structure is such that even one doubling plate 8 is eliminated by providing one steel shell opening in one protection tube.
【００１７】[0017]
【発明の効果】以上に説明したように、本発明において
は、ステーブクーラー冷却水管部の鉄皮への取り付け構
造として、シール部材をラッパ状の筒状体とすることに
より鉄皮面とこれに直交する保護管を連続的に接合する
ことで、ステーブクーラーの熱膨張による保護管の変位
に容易に追従し、保護管との溶接部に発生する局部応力
をおさえる事ができる。従って、従来のようなガスシー
ルボックス構造やダブリングプレート構造を取る必要が
なく、以下の優れた効果が得られる。As described above, according to the present invention, as the structure for attaching the stove cooler cooling water pipe portion to the steel shell, the seal member is formed into a trumpet-shaped cylindrical body, and the steel shell surface and By continuously joining the protection tubes perpendicular to each other, it is possible to easily follow the displacement of the protection tube due to the thermal expansion of the stave cooler, and to suppress the local stress generated at the welding portion with the protection tube. Therefore, it is not necessary to adopt a conventional gas seal box structure or doubling plate structure, and the following excellent effects can be obtained.
【００１８】（１）ガスシールボックスやダブリングプ
レートが不要となるので、それらの製作に要する期間と
費用が削減できる。 （２）部品数が減り、溶接箇所が少なくなるので、設備
の信頼性が向上し、更に工事現場での施工や検査に要す
る期間と費用が削減できる。 （３）ガスシールボックスが不要となるので、上下、あ
るいは左右に隣接するシール部材の間隔が狭くても、溶
接作業に支障をきたさない。(1) Since a gas seal box and a doubling plate are not required, the period and cost required for manufacturing them can be reduced. (2) Since the number of parts is reduced and the number of welding points is reduced, the reliability of equipment is improved, and the time and cost required for construction and inspection at a construction site can be reduced. (3) Since a gas seal box is not required, there is no hindrance to the welding operation even if the interval between the vertically and horizontally or horizontally adjacent seal members is small.
【００１９】（４）ステーブクーラー単体において冷却
水管の給水部および排水部を極力、ステーブクーラーの
端に寄せ、コーナー部の冷却効果を高めようとする際、
隣接するステーブクーラーのガスシールボックスの外形
寸法が制約となるようなことがなくなる。従って、ステ
ーブクーラーのコーナー部の寿命を延ばすことができ、
炉命延長を図ることができる。 （５）鉄皮から突き出す冷却水管の長さが短くなり、点
検歩廊を鉄皮に近付けることができ、点検作業がより容
易となる。(4) When the water supply part and the drainage part of the cooling water pipe are moved to the end of the stave cooler as much as possible in the stave cooler alone to enhance the cooling effect of the corner part,
The outer dimensions of the gas seal box of the adjacent stove cooler are not restricted. Therefore, the life of the corner of the stave cooler can be extended,
The life can be extended. (5) The length of the cooling water pipe protruding from the iron shell is shortened, and the inspection corridor can be made closer to the iron shell, and the inspection work becomes easier.
【００２０】（６）ステーブクーラー本体から突き出す
冷却水管の長さが短くなり、輸送時の梱包外形寸法を小
さくできる。又、据付工事の際に取り扱いが容易にな
る。 （７）保護管の変位を伸縮管で吸収する方法よりも、は
るかに単純な構造で、経済的である。 （８）一本の保護管に一つの鉄皮開孔を設けることで鉄
皮の開孔面積を従来よりも少なくでき、保護管の集約状
態に関わらずすべて円形の開孔形状とできるので、鉄皮
の開孔部周辺での応力集中係数が結果として小さくな
り、鉄皮の強度上、有利となる。又、開孔作業も容易と
なる。(6) The length of the cooling water pipe protruding from the stave cooler body is shortened, and the outer dimensions of the package during transportation can be reduced. Also, handling becomes easy during installation work. (7) It has a much simpler structure and is more economical than a method in which the displacement of the protective tube is absorbed by a telescopic tube. (8) By providing one shell opening in one protection tube, the opening area of the steel shell can be made smaller than in the past, and all holes can be formed in a circular shape regardless of the aggregation state of the protection tube. As a result, the stress concentration factor around the opening of the steel shell is reduced, which is advantageous in the strength of the steel shell. In addition, the opening operation becomes easy.
【００２１】（９）シール部材の筒状体の筒面をその縦
断面が折れ線状の曲面とすることで該筒状体のプレス加
工費を低減することができる。 （10）シール部材の材質に熱間圧延軟鋼板を用いること
により、ステーブクーラーの熱膨張による保護管の変位
にさらに容易に追従できる。(9) By making the cylindrical surface of the cylindrical member of the seal member a curved surface with a broken line in a vertical section, the cost of pressing the cylindrical member can be reduced. (10) By using a hot-rolled mild steel sheet as the material of the seal member, it is possible to more easily follow the displacement of the protection tube due to the thermal expansion of the stave cooler.
【図１】本発明請求項１の実施例におけるステーブクー
ラーの取り付け構造例を示す部分拡大縦断面図FIG. 1 is a partially enlarged longitudinal sectional view showing an example of an attachment structure of a stave cooler according to an embodiment of the present invention.
【図２】本発明請求項２の実施例におけるステーブクー
ラーの取り付け構造例を示す部分拡大縦断面図FIG. 2 is a partially enlarged longitudinal sectional view showing an example of an attachment structure of a stave cooler according to a second embodiment of the present invention.
【図３】従来の構造例を示す部分拡大縦断面図FIG. 3 is a partially enlarged longitudinal sectional view showing a conventional structure example.
【図４】従来の構造例を示す部分拡大縦断面図FIG. 4 is a partially enlarged longitudinal sectional view showing a conventional structure example.
【図５】従来の構造例を示す部分拡大縦断面図FIG. 5 is a partially enlarged longitudinal sectional view showing a conventional structure example.
１：ステーブクーラー本体 ２：鉄皮 ３：不定形耐火物 ４：ボルト ５：冷却水管 ６：保護管 ７：ガスシールボックス ８：ダブリングプレート ９：シール部材 １０：シールプレート 1: stove cooler body 2: iron shell 3: irregular refractory 4: bolt 5: cooling water pipe 6: protective tube 7: gas seal box 8: doubling plate 9: sealing member 10: seal plate
Claims (3)
への取り付け構造において、一端が保護管に嵌合し得る
径（Ａ）、他端が該径より大なる径（Ｂ）で筒状体を形
成し、且つ、該筒状体の筒面をラッパ状の曲面になして
シール部材を構成して該シール部材の一端を保護管に、
他端を鉄皮に溶接したことを特徴とするステーブクーラ
ー冷却水管保護管の鉄皮への取り付け構造。1. A stove cooler cooling water pipe protection tube mounting structure for mounting on a steel shell, wherein one end has a diameter (A) that can be fitted into the protection tube, and the other end has a diameter (B) larger than the diameter. Is formed, and a cylindrical surface of the cylindrical body is formed into a trumpet-shaped curved surface to form a seal member, and one end of the seal member is formed in a protective tube,
A structure for attaching a stave cooler cooling water pipe protection tube to a steel shell, the other end of which is welded to the steel shell.
状の曲面となしたことを特徴とする請求項１項記載のス
テーブクーラー冷却水管保護管の鉄皮への取り付け構
造。2. The structure for mounting a stave cooler cooling water pipe protection tube on a steel shell according to claim 1, wherein the cylindrical surface of the cylindrical body has a curved surface having a polygonal cross section.
たことを特徴とする請求項１項または請求項２項記載の
ステーブクーラー冷却水管保護管の鉄皮への取り付け構
造。3. The mounting structure of a stave cooler cooling water pipe protection tube to a steel shell according to claim 1, wherein the material of the cylindrical body is a hot-rolled mild steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4284797A JPH10219320A (en) | 1997-02-13 | 1997-02-13 | Structure for fitting protecting tube for cooling water pipe in stave cooler to furnace shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4284797A JPH10219320A (en) | 1997-02-13 | 1997-02-13 | Structure for fitting protecting tube for cooling water pipe in stave cooler to furnace shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10219320A true JPH10219320A (en) | 1998-08-18 |
Family
ID=12647405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4284797A Withdrawn JPH10219320A (en) | 1997-02-13 | 1997-02-13 | Structure for fitting protecting tube for cooling water pipe in stave cooler to furnace shell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10219320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1391521A1 (en) * | 2002-08-20 | 2004-02-25 | Voest-Alpine Industrieanlagenbau GmbH & Co. | Cooling plate for metallurgical furnace |
| CN114918633A (en) * | 2022-06-27 | 2022-08-19 | 宝武集团鄂城钢铁有限公司 | Method for repairing water leakage at root of copper pipe and copper cooling wall |
-
1997
- 1997-02-13 JP JP4284797A patent/JPH10219320A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1391521A1 (en) * | 2002-08-20 | 2004-02-25 | Voest-Alpine Industrieanlagenbau GmbH & Co. | Cooling plate for metallurgical furnace |
| WO2004018713A1 (en) * | 2002-08-20 | 2004-03-04 | Voest-Alpine Industrieanlagenbau Gmbh & Co | Cooling plate for metallurgic furnaces |
| US7537724B2 (en) | 2002-08-20 | 2009-05-26 | Siemens Vai Metals Technologies Gmbh & Co. | Cooling plate for metallurgic furnaces |
| CN114918633A (en) * | 2022-06-27 | 2022-08-19 | 宝武集团鄂城钢铁有限公司 | Method for repairing water leakage at root of copper pipe and copper cooling wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040511 |