JPH0528479Y2 - - Google Patents
Info
- Publication number
- JPH0528479Y2 JPH0528479Y2 JP13916985U JP13916985U JPH0528479Y2 JP H0528479 Y2 JPH0528479 Y2 JP H0528479Y2 JP 13916985 U JP13916985 U JP 13916985U JP 13916985 U JP13916985 U JP 13916985U JP H0528479 Y2 JPH0528479 Y2 JP H0528479Y2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic fiber
- insulation material
- layer
- furnace
- corner
- 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.)
- Expired - Lifetime
Links
- 239000000919 ceramic Substances 0.000 claims description 29
- 239000000835 fiber Substances 0.000 claims description 28
- 239000012774 insulation material Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は、例えば圧延用連続加熱炉あるいはバ
ツチ式加熱炉等の隅炉壁構造に係り、特に、加熱
炉の炉壁断熱材としてセラミツクフアイバーを使
用した場合の隅炉壁構造に関するものである。[Detailed Description of the Invention] "Field of Industrial Application" The present invention relates to corner furnace wall structures of continuous rolling heating furnaces, batch heating furnaces, etc. This concerns the corner furnace wall structure when using.
「従来の技術」
最近、加熱炉の炉壁断熱材としてセラミツクフ
アイバーを使用し、炉の省エネルギー化を図つて
いる。``Prior Art'' Recently, ceramic fibers have been used as heat insulators for the walls of heating furnaces in an effort to save energy in furnaces.
第２図は、炉壁断熱材としてセラミツクフアイ
バーを使用した従来の加熱炉のコーナー部を示す
ものであり、第１層目のセラミツクフアイバー断
熱材３、第２層目のセラミツクフアイバー断熱材
４、および第３層目のセラミツクフアイバー断熱
材５とからなつており、第２層目のセラミツクフ
アイバー断熱材４は、天井鉄皮１、側壁鉄皮２か
らの支持金具６によつて支持されている。 FIG. 2 shows a corner of a conventional heating furnace that uses ceramic fiber as the furnace wall insulation material.The first layer of ceramic fiber insulation material 3, the second layer of ceramic fiber insulation material 4, and a third layer of ceramic fiber insulation material 5, and the second layer of ceramic fiber insulation material 4 is supported by support fittings 6 from the ceiling steel skin 1 and the side wall steel skin 2. .
天井鉄皮１と側壁鉄皮２とのコーナー部の断熱
施工を行うに当つては、セラミツクフアイバー自
体の収縮による亀裂の発生を防止する対策とし
て、セラミツクフアイバー断熱材の圧縮化を図る
こと、あるいは断熱材間にスペーサーを設けるこ
と等が行われている。 When insulating the corners of the ceiling steel skin 1 and the side wall steel skin 2, it is necessary to compress the ceramic fiber insulation material as a measure to prevent cracks from occurring due to shrinkage of the ceramic fiber itself, or Providing spacers between heat insulating materials, etc. is being practiced.
「考案が解決しようとする問題点」
ところで、炉壁断熱材としてのセラミツクフア
イバーは、耐熱性、断熱性に優れている反面、高
温域で使用していると、セラミツクフアイバー自
体の収縮による亀裂および炉体の熱歪みによる亀
裂等が発生し易く、特に、第２図に示す従来の加
熱炉の隅炉壁構造では、第３図に示す如く、鉄皮
の膨張等により炉体の動きが最も集中しやすいコ
ーナー部において、断熱材あるいは断熱材間の目
地部に亀裂７が生じ、炉内の熱がセラミツクフア
イバー断熱材３の背面へ漏れ、鉄皮赤熱、鉄皮の
変形等が発生し、問題点が多い。``Problems that the invention aims to solve'' By the way, ceramic fibers used as furnace wall insulation materials have excellent heat resistance and insulation properties, but when used in high temperature ranges, they can cause cracks and cracks due to shrinkage of the ceramic fibers themselves. Cracks are likely to occur due to thermal distortion of the furnace body, and in particular, in the corner wall structure of the conventional heating furnace shown in Figure 2, as shown in Figure 3, the movement of the furnace body due to expansion of the iron shell is most likely to occur. Cracks 7 occur in the heat insulators or in the joints between the heat insulators at corners where heat tends to concentrate, causing heat inside the furnace to leak to the back of the ceramic fiber insulator 3, causing red heat to the steel shell, deformation of the steel shell, etc. There are many problems.
「問題点を解決するための手段」
本考案は、上述した従来の問題点に鑑みなされ
たものであつて、その構成を第１図に基づき以下
に説明する。"Means for Solving the Problems" The present invention has been devised in view of the above-mentioned conventional problems, and its configuration will be explained below based on FIG. 1.
本考案に係る加熱炉の隅炉壁構造は、第１図に
示す如く、加熱炉の天井鉄皮１と側壁鉄皮２との
コーナー部における第１層目のセラミツクフアイ
バー断熱材３と、第３層目のセラミツクフアイバ
ー断熱材５による炉内壁のコーナー面取部５ａと
に囲まれた空間部位に、第２層目のセラミツクフ
アイバー断熱材４として、前記コーナー部におけ
る第１層目のセラミツクフアイバー断熱材３に接
する１個の四角形ブロツク４ａと、前記天井鉄皮
１側および側壁鉄皮２側の第１層目のセラミツク
フアイバー断熱材３にそれぞれ底辺面が接すると
共に、前記四角形ブロツク４ａを挟持する倒立配
置および横向き配置の２個の五角形ブロツク４
ｂ，４ｃとを設けて成る。 As shown in FIG. 1, the corner wall structure of the heating furnace according to the present invention includes a first layer of ceramic fiber insulation material 3 and a first layer of ceramic fiber insulation material 3 at the corner of the ceiling skin 1 and side wall skin 2 of the heating furnace. In the space surrounded by the corner chamfered portion 5a of the inner wall of the furnace formed by the third layer of ceramic fiber insulation material 5, the first layer of ceramic fiber in the corner portion is used as the second layer of ceramic fiber insulation material 4. One square block 4a is in contact with the heat insulating material 3, and the bottom surface is in contact with the first layer of ceramic fiber heat insulating material 3 on the ceiling skin 1 side and the side wall skin 2 side, respectively, and the square block 4a is sandwiched. Two pentagonal blocks in an inverted and horizontal arrangement 4
b, 4c.
前記各ブロツク４ａ，４ｂ，４ｃは、セラミツ
クフエルトを接着剤を介して積層したものであ
る。 Each of the blocks 4a, 4b, and 4c is made by laminating ceramic felts using an adhesive.
「作用」
本考案による加熱炉のコーナー部における第２
層目のセラミツクフアイバー断熱材４を３個のブ
ロツク４ａ，４ｂ，４ｃとなし、かつ炉内壁のコ
ーナーの面取りを行つて構成したことにより、隅
炉壁の厚みを増加せしめ、炉体鉄皮の動きが炉内
壁のコーナー部のセラミツクフアイバー断熱材５
に伝達されにくくなり、亀裂の発生を抑制すると
共に、たとえ亀裂が発生しても、厚いブロツク４
ａ，４ｂ，４ｃが漏風の抵抗層として作用する。"Operation" The second part in the corner part of the heating furnace according to the present invention
By forming the ceramic fiber insulation material 4 into three blocks 4a, 4b, and 4c and by chamfering the corners of the furnace inner wall, the thickness of the corner furnace wall is increased and the thickness of the furnace shell is increased. Ceramic fiber insulation material at the corner of the inner wall of the furnace 5
This makes it difficult for cracks to be transmitted, and even if cracks do occur, thick blocks 4
a, 4b, and 4c act as a resistance layer for air leakage.
「実施例」
昭和59年８月稼働の厚板、極厚バツチ式加熱炉
に本考案に係る隅炉壁構造を採用し、従来の加熱
炉と比較すると、亀裂は小さい事が確認された。``Example'' The corner furnace wall structure according to the present invention was adopted in a thick plate, extra-thick batch type heating furnace that was put into operation in August 1981, and it was confirmed that the cracks were smaller when compared with a conventional heating furnace.
各ブロツク４ａ，４ｂ，４ｃの厚みは、コーナ
ー部以外の第２層目のセラミツクフアイバー断熱
材４の厚みおよびブロツクの支持方法により異な
るが、大体200mm程度が最も良いと思われる。こ
れはブロツク４ａ，４ｂ，４ｃをあまり大きくす
ると支持金具６に負担がかかり、寿命を短くする
恐れがある。 The thickness of each block 4a, 4b, 4c varies depending on the thickness of the second layer of ceramic fiber heat insulating material 4 other than the corner portions and the method of supporting the block, but it is thought that approximately 200 mm is best. This is because if the blocks 4a, 4b, 4c are made too large, a burden will be placed on the support fitting 6, which may shorten its life.
「考案の効果」
以上のように、本考案によれば、加熱炉の炉壁
コーナー部に微少の亀裂は発生するが、その亀裂
の数は従来の加熱炉の1/2以下であると共に、亀
裂の深さも1/2以下であり、炉体の熱歪みからく
る亀裂発生を抑制することができ、炉の漏風、鉄
皮の赤熱、変形等の防止に寄与できるので、加熱
炉の寿命を延長することができる。"Effects of the invention" As described above, according to the invention, although minute cracks occur in the corners of the furnace wall of the heating furnace, the number of cracks is less than half of that of conventional heating furnaces. The depth of cracks is less than 1/2, which suppresses the occurrence of cracks caused by thermal distortion of the furnace body, contributing to the prevention of furnace air leaks, red heat of the steel shell, deformation, etc., thereby extending the life of the heating furnace. Can be extended.
第１図は、本考案の一実施例を示す加熱炉コー
ナー部の断面図、第２図は従来の加熱炉コーナー
部の一例を示す断面図、第３図は、従来の加熱炉
コーナー部に発生した亀裂の一例を示す説明図で
ある。
１……天井鉄皮、２……側壁鉄皮、３……第１
層目のセラミツクフアイバー断熱材、４……第２
層目のセラミツクフアイバー断熱材、４ａ……四
角形ブロツク、４ｂ，４ｃ……五角形ブロツク、
５……第３層目のセラミツクフアイバー断熱材、
５ａ……コーナー面取部。
FIG. 1 is a cross-sectional view of a heating furnace corner showing an embodiment of the present invention, FIG. 2 is a cross-sectional view showing an example of a conventional heating furnace corner, and FIG. 3 is a cross-sectional view of a conventional heating furnace corner. It is an explanatory view showing an example of the crack which occurred. 1...Ceiling iron skin, 2...Side wall iron skin, 3...1st
Layered ceramic fiber insulation material, 4...2nd layer
Layered ceramic fiber insulation material, 4a...square block, 4b, 4c...pentagonal block,
5...Third layer ceramic fiber insulation material,
5a...Corner chamfered portion.
Claims (1)
部における第１層目のセラミツクフアイバー断熱
材３と、第３層目のセラミツクフアイバー断熱材
５による炉内壁のコーナー面取部５ａとに囲まれ
た空間部位に、第２層目のセラミツクフアイバー
断熱材４として、前記コーナー部における第１層
目のセラミツクフアイバー断熱材３に接する１個
の四角形ブロツク４ａと、前記天井鉄皮１側およ
び側壁鉄皮２側の第１層目のセラミツクフアイバ
ー断熱材３にそれぞれ底辺面が接すると共に、前
記四角形ブロツク４ａを挟持する倒立配置および
横向き配置の２個の五角形ブロツク４ｂ，４ｃと
を設けた加熱炉の隅炉壁構造。 The corner chamfered portion 5a of the inner wall of the furnace is formed by the first layer of ceramic fiber insulation material 3 and the third layer of ceramic fiber insulation material 5 at the corner portion of the ceiling steel skin 1 and side wall steel skin 2 of the heating furnace. In the enclosed space area, there is one rectangular block 4a as a second layer of ceramic fiber insulation material 4, which is in contact with the first layer of ceramic fiber insulation material 3 at the corner part, and on the ceiling iron skin 1 side and A heating system in which two pentagonal blocks 4b and 4c are arranged in an inverted and horizontal arrangement, the bottom surfaces of which are in contact with the first layer of ceramic fiber insulation material 3 on the side wall iron skin 2 side, and which sandwich the square block 4a. Furnace corner furnace wall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13916985U JPH0528479Y2 (en) | 1985-09-10 | 1985-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13916985U JPH0528479Y2 (en) | 1985-09-10 | 1985-09-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6247896U JPS6247896U (en) | 1987-03-24 |
| JPH0528479Y2 true JPH0528479Y2 (en) | 1993-07-21 |
Family
ID=31044816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13916985U Expired - Lifetime JPH0528479Y2 (en) | 1985-09-10 | 1985-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0528479Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2615702B2 (en) * | 1987-11-20 | 1997-06-04 | 大同特殊鋼株式会社 | Heat treatment furnace |
-
1985
- 1985-09-10 JP JP13916985U patent/JPH0528479Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6247896U (en) | 1987-03-24 |
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