JPH0560468A - Furnace wall device for baking furnace - Google Patents

Furnace wall device for baking furnace

Info

Publication number
JPH0560468A
JPH0560468A JP21830891A JP21830891A JPH0560468A JP H0560468 A JPH0560468 A JP H0560468A JP 21830891 A JP21830891 A JP 21830891A JP 21830891 A JP21830891 A JP 21830891A JP H0560468 A JPH0560468 A JP H0560468A
Authority
JP
Japan
Prior art keywords
furnace
wall
ceramic fiber
outer plate
furnace wall
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.)
Granted
Application number
JP21830891A
Other languages
Japanese (ja)
Other versions
JP3040208B2 (en
Inventor
Kazuo Nakayoku
運雄 中浴
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16717810&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH0560468(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP3218308A priority Critical patent/JP3040208B2/en
Publication of JPH0560468A publication Critical patent/JPH0560468A/en
Application granted granted Critical
Publication of JP3040208B2 publication Critical patent/JP3040208B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

PURPOSE:To obtain a furnace wall device for a baking furnace, preventing a furnace wall from oxydization, improving the safety of the furnace wall and preventing baked products from being faulty in the quality thereof. CONSTITUTION:The inner walls of the furnace of a shuttle kiln 1 is constituted of ceramic fiber blocks 9 while the outer walls of the same is constituted of outer plates 10. One part of gas in the furnace permeates the ceramics fiber blocks 9 to the side of the outer walls of the furnace, however, the gas is prevented from contacting with the inner walls of the outer plates 10 by foil bodies 20.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、焼成炉の炉壁構造に関
するもので、詳細には、炉内ガスによる炉壁の腐食を防
止する炉壁構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a furnace wall structure of a firing furnace, and more particularly, to a furnace wall structure for preventing corrosion of the furnace wall by a gas in the furnace.

【0002】[0002]

【従来の技術】従来より、窯詰め、焼成、冷却、窯出し
の作業が不連続的に行なわれるシャトルキルンは、比較
的建設費が安く、多種類、少量生産に適することで知ら
れている。このシャトルキルンの炉内壁にセラミックフ
ァイバを用いたものでは、セラミックファイバの炉外壁
側に鉄製の外板を設けるのが一般的である。炉内壁側に
セラミックファイバを用いるのは、熱損失を低減し、燃
料消費量を小さくする等の理由による。
2. Description of the Related Art Conventionally, shuttle kilns in which kiln packing, firing, cooling, and kiln removal operations are discontinuously performed are known to be relatively low in construction cost and suitable for production of many types and small quantities. .. In the shuttle kiln using ceramic fibers on the inner wall of the furnace, an outer plate made of iron is generally provided on the outer wall side of the ceramic fibers. The reason why the ceramic fiber is used on the inner wall side of the furnace is to reduce heat loss and fuel consumption.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな従来のシャトルキルンの炉壁構造によると、炉内壁
側温度は高温例えば1200℃以上にもなり、炉外壁側
の外板温度は例えば100℃位となり、炉壁厚さ方向の
温度勾配が極めて大きい。また一般にシャトルキルン内
では、HCl、H2 SO4 、HNO3 、HF、Cl2
2 O等のガスが発生し、これらがセラミックファイバ
を通して外板である鉄板をアタックし、例えば炉内ガス
中の約1〜5体積%以下のガスが外板である鉄板をアタ
ックする。そのため、鉄板が酸化しやすいので、この鉄
板とセラミックファイバを固定する金具、ボルト、ナッ
ト等の腐蝕が促進されると、炉壁の損傷ひいては炉壁の
倒壊を発生するおそれがある。
However, according to such a conventional shuttle kiln furnace wall structure, the temperature on the furnace inner wall side is as high as 1200 ° C. or more, and the outer plate temperature on the furnace outer wall side is 100 ° C., for example. The temperature gradient in the furnace wall thickness direction is extremely large. Generally, in the shuttle kiln, HCl, H 2 SO 4 , HNO 3 , HF, Cl 2 ,
A gas such as H 2 O is generated, and these gases attack the iron plate which is the outer plate through the ceramic fiber. For example, about 1 to 5 volume% or less of the gas in the furnace attacks the iron plate which is the outer plate. Therefore, since the iron plate is easily oxidized, if corrosion of metal fittings, bolts, nuts and the like for fixing the iron plate and the ceramic fiber is promoted, damage to the furnace wall and eventually collapse of the furnace wall may occur.

【0004】本発明は、このような問題点を解決するた
めになされたもので、炉壁の酸化を防止し、炉壁の安全
性を向上するとともに、焼成される製品の品質不良を防
止するようにした焼成炉の炉壁構造を提供することを目
的とする。
The present invention has been made to solve the above problems, and prevents the furnace wall from being oxidized, improves the safety of the furnace wall, and prevents the quality of the product to be fired. An object of the present invention is to provide a furnace wall structure of the firing furnace.

【0005】[0005]

【課題を解決するための手段】前記目的を達成するため
の本発明による焼成炉の炉壁構造は、炉内壁を構成する
セラミックファイバブロックと、炉外壁を構成する外板
とからなる焼成炉であって、前記外板の少なくとも炉内
壁側に炉内ガスが前記セラミックファイバブロックを浸
透して前記外板に接触するのを遮断するガス遮断体を設
けたことを特徴とする。
A furnace wall structure of a furnace according to the present invention for achieving the above object is a furnace comprising a ceramic fiber block forming an inner wall of the furnace and an outer plate forming an outer wall of the furnace. A gas blocking body is provided at least on the furnace inner wall side of the outer plate to block a furnace gas from penetrating the ceramic fiber block and coming into contact with the outer plate.

【0006】[0006]

【作用】本発明の焼成炉の炉壁構造によると、炉内壁を
構成するセラミックファイバの内部に炉内ガスが外板に
接触するのを防止するガス遮断体を設けたため、炉内ガ
スによる外板の侵食、酸化が防止される。
According to the furnace wall structure of the firing furnace of the present invention, the ceramic fiber forming the inner wall of the furnace is provided with the gas blocker for preventing the in-furnace gas from coming into contact with the outer plate. Prevents plate erosion and oxidation.

【0007】[0007]

【実施例】以下、本発明の実施例を図面にもとづいて説
明する。不連続炉を代表するシャトルキルンに本発明を
適用した実施例を図1および図2に示す。図2に示され
るように、シャトルキルン1の炉内には、車輪3をもつ
台車2が出し入れ自在になっており、台車2の頂面2a
に支柱4を介して棚組5が形成されている。棚組5の内
部には、図示しない被焼成品が配置される。
Embodiments of the present invention will now be described with reference to the drawings. An embodiment in which the present invention is applied to a shuttle kiln that represents a discontinuous furnace is shown in FIGS. 1 and 2. As shown in FIG. 2, a carriage 2 having wheels 3 can be freely put in and taken out of the furnace of the shuttle kiln 1, and a top surface 2 a of the carriage 2 is provided.
A shelf set 5 is formed through the support columns 4. Inside the shelf set 5, an article to be fired (not shown) is arranged.

【0008】炉壁8は、図1に示すように、セラミック
ファイバブロック9と、鉄板からなる外板10とからな
る。セラミックファイバブロック9は、セラミックファ
イバからなるブランケット状のものが折り畳まれて1つ
のユニットを形成し、このユニットが炉内壁を構成する
ように側壁部および天井部に組み込まれている。セラミ
ックファイバブロック9は、ボルト13およびナット1
4によって外板10に固定されている。
As shown in FIG. 1, the furnace wall 8 comprises a ceramic fiber block 9 and an outer plate 10 made of an iron plate. The ceramic fiber block 9 is formed by folding a blanket-shaped ceramic fiber block into one unit, and the unit is incorporated in the side wall and the ceiling so as to form the inner wall of the furnace. The ceramic fiber block 9 includes a bolt 13 and a nut 1.
It is fixed to the outer plate 10 by 4.

【0009】そしてセラミックファイバブロック9の炉
外側にステンレス製の箔体20がセラミックファイバブ
ロック9の外周に被覆されている。この箔体20の外側
には、セラミックファイバブロック21が鉄製の外板1
0との間に設けられている。ステンレス製の箔体20を
設ける位置は、図3に示すように、外板10の内壁面と
セラミックファイバブロック9の炉内壁面との距離Lが
例えば250mmの場合、外板10の炉内側面からの距
離Xは0〜75mmの範囲がよく、さらに望ましくは2
5〜75mmの範囲がよい。これは、箔体20による酸
化防止効果は、外板10の内壁側にステンレス製の箔体
が設けられていればよく、かつ酸化防止効果を発揮する
のは500〜600℃以下で通常発揮されるから距離X
が75mm以下がよい。さらには、炉内ガスの水分によ
って外板10が結露するのを防止するためには、箔体2
0を設ける位置が300〜600℃の範囲がよく、その
場合には距離Xが25〜75mmが望ましい。箔体20
の厚さは、0.01〜0.2mmの範囲にするのがよ
い。この箔体20は耐酸化性および耐熱性の良好なもの
である。
A stainless foil body 20 is coated on the outer periphery of the ceramic fiber block 9 on the outside of the ceramic fiber block 9. On the outer side of the foil body 20, a ceramic fiber block 21 is provided with an outer plate 1 made of iron.
It is provided between 0 and. As shown in FIG. 3, when the distance L between the inner wall surface of the outer plate 10 and the furnace inner wall surface of the ceramic fiber block 9 is 250 mm, the position where the stainless steel foil body 20 is provided is, for example, 250 mm. The distance X from is preferably in the range of 0 to 75 mm, more preferably 2
A range of 5 to 75 mm is preferable. This is because the antioxidation effect of the foil body 20 is sufficient if a stainless steel foil body is provided on the inner wall side of the outer plate 10, and the antioxidation effect is normally exhibited at 500 to 600 ° C. or lower. Distance X
Is preferably 75 mm or less. Furthermore, in order to prevent the outer plate 10 from being condensed by the moisture of the gas in the furnace, the foil 2
The position where 0 is provided is preferably in the range of 300 to 600 ° C. In that case, the distance X is preferably 25 to 75 mm. Foil 20
The thickness is preferably in the range of 0.01 to 0.2 mm. The foil 20 has good oxidation resistance and heat resistance.

【0010】前記実施例によれば、図3に示すように、
外板10の内壁側のセラミックファイバブロック9の内
部にステンレス製の箔体20が設けられるから、炉内か
らセラミックファイバブロック9を浸透する炉内ガスは
箔体20によって遮断されるから外板10に直接接触す
ることはなく外板10を侵食するのが防止される。この
ため、外板10の酸化が防止され、外板10の損傷や侵
食や腐蝕が確実に防止される。そのため、炉壁の構造体
が強化され、構造体の安全性が向上される。
According to the above embodiment, as shown in FIG.
Since the foil body 20 made of stainless steel is provided inside the ceramic fiber block 9 on the inner wall side of the outer plate 10, the furnace gas that permeates the ceramic fiber block 9 from inside the furnace is blocked by the foil body 20. It does not come into direct contact with the outer shell 10 and is prevented from eroding the outer skin 10. Therefore, oxidation of the outer plate 10 is prevented, and damage, erosion and corrosion of the outer plate 10 are reliably prevented. Therefore, the structure of the furnace wall is strengthened, and the safety of the structure is improved.

【0011】また炉内ガス中の水分によって低温側の外
板付近では結露しやすいが、炉内ガス中の水分は箔体2
0によって遮断されるため、水分が外板10に接触しな
いので、鉄板である外板10が酸化されない。従って、
結露防止による外板10の酸化が防止され、防食性の良
好な炉壁構造体が得られる。前記実施例では、箔体20
の炉外側にセラミックファイバ21を設けたが、このセ
ラミックファイバ21に代えて耐火物煉瓦を設けてもよ
いことはもちろんである。またセラミックファイバ21
に代えてグラスファイバを用いることも可能である。さ
らには、セラミックファイバブロック9と外板10との
固定手段は前記実施例の場合はボルト、ナットを用いた
が、取付け手段はこれに限られない。
Further, due to the moisture in the furnace gas, dew condensation is likely to occur near the outer plate on the low temperature side.
Since it is blocked by 0, moisture does not contact the outer plate 10, so that the outer plate 10, which is an iron plate, is not oxidized. Therefore,
Oxidation of the outer plate 10 due to dew condensation prevention is prevented, and a furnace wall structure having good corrosion resistance is obtained. In the above embodiment, the foil body 20
Although the ceramic fiber 21 is provided outside the furnace of, the refractory brick may be provided instead of the ceramic fiber 21. In addition, the ceramic fiber 21
It is also possible to use glass fiber instead. Further, the fixing means for fixing the ceramic fiber block 9 and the outer plate 10 uses bolts and nuts in the above embodiment, but the attaching means is not limited to this.

【0012】[0012]

【発明の効果】以上説明したように、本発明の焼成炉の
炉壁構造によると、炉内壁を構成するセラミックファイ
バの内部または外板の炉内壁側に炉内ガスが外板に直接
触れるのを防止する箔体を被覆する構成としたため、炉
壁を構成する外板の耐食性が向上されるので、炉の安全
性が高められるとともに、焼成すべき製品の品質不良の
発生が防止されるという効果がある。
As described above, according to the furnace wall structure of the firing furnace of the present invention, the gas inside the furnace directly contacts the inside of the ceramic fiber forming the inside wall of the furnace or the outside wall of the inside plate of the outside plate. Since it is configured to cover the foil body that prevents the corrosion, the corrosion resistance of the outer plate that constitutes the furnace wall is improved, so that the safety of the furnace is improved and the occurrence of defective quality of the product to be fired is prevented. effective.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例によるシャトルキルンの炉壁を
示す部分断面図である。
FIG. 1 is a partial sectional view showing a furnace wall of a shuttle kiln according to an embodiment of the present invention.

【図2】本発明の実施例によるシャトルキルンを示す断
面図である。
FIG. 2 is a sectional view showing a shuttle kiln according to an embodiment of the present invention.

【図3】本発明の実施例による炉壁厚さ方向の外板から
の炉内方向距離と炉壁温度との関係を示す特性図であ
る。
FIG. 3 is a characteristic diagram showing the relationship between the furnace wall inner temperature from the outer plate in the furnace wall thickness direction and the furnace wall temperature according to the embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 シャトルキルン 9 セラミックファイバブロック 10 外板 20 ガス遮断体(箔体) 21 セラミックファイバブロック 1 Shuttle Kiln 9 Ceramic Fiber Block 10 Outer Plate 20 Gas Barrier (Foil) 21 Ceramic Fiber Block

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】炉内壁を構成するセラミックファイバブロ
ックと、炉外壁を構成する外板とからなる焼成炉であっ
て、 前記外板の少なくとも炉内壁側に炉内ガスが前記セラミ
ックファイバブロックを浸透して前記外板に接触するの
を遮断するガス遮断体を設けたことを特徴とする焼成炉
の炉壁装置。
1. A firing furnace comprising a ceramic fiber block forming an inner wall of a furnace and an outer plate forming an outer wall of the furnace, wherein a furnace gas permeates the ceramic fiber block at least on the inner wall side of the outer plate. Then, a furnace wall device for a firing furnace is provided, which is provided with a gas barrier that blocks contact with the outer plate.
JP3218308A 1991-08-29 1991-08-29 Furnace wall equipment for firing furnace Expired - Lifetime JP3040208B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3218308A JP3040208B2 (en) 1991-08-29 1991-08-29 Furnace wall equipment for firing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3218308A JP3040208B2 (en) 1991-08-29 1991-08-29 Furnace wall equipment for firing furnace

Publications (2)

Publication Number Publication Date
JPH0560468A true JPH0560468A (en) 1993-03-09
JP3040208B2 JP3040208B2 (en) 2000-05-15

Family

ID=16717810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3218308A Expired - Lifetime JP3040208B2 (en) 1991-08-29 1991-08-29 Furnace wall equipment for firing furnace

Country Status (1)

Country Link
JP (1) JP3040208B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011033251A (en) * 2009-07-31 2011-02-17 Shin-Nippon Thermal Ceramics Corp Fireproof lining using ceramic fiber block and method of mounting the ceramic fiber block
CN105403044A (en) * 2014-09-05 2016-03-16 广东松发陶瓷股份有限公司 Full-automatic rapid energy-saving shuttle kiln
JP2016061464A (en) * 2014-09-16 2016-04-25 三菱樹脂株式会社 Inorganic fibrous heat insulation material block, manufacturing method thereof, and furnace
CN106225474A (en) * 2016-08-30 2016-12-14 张子青 A kind of indoor heavy oil stove mechanism heated for blank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011033251A (en) * 2009-07-31 2011-02-17 Shin-Nippon Thermal Ceramics Corp Fireproof lining using ceramic fiber block and method of mounting the ceramic fiber block
CN105403044A (en) * 2014-09-05 2016-03-16 广东松发陶瓷股份有限公司 Full-automatic rapid energy-saving shuttle kiln
JP2016061464A (en) * 2014-09-16 2016-04-25 三菱樹脂株式会社 Inorganic fibrous heat insulation material block, manufacturing method thereof, and furnace
CN106225474A (en) * 2016-08-30 2016-12-14 张子青 A kind of indoor heavy oil stove mechanism heated for blank

Also Published As

Publication number Publication date
JP3040208B2 (en) 2000-05-15

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