JP2017067381A - Furnace wall structure for heating furnace - Google Patents

Furnace wall structure for heating furnace Download PDF

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JP2017067381A
JP2017067381A JP2015194283A JP2015194283A JP2017067381A JP 2017067381 A JP2017067381 A JP 2017067381A JP 2015194283 A JP2015194283 A JP 2015194283A JP 2015194283 A JP2015194283 A JP 2015194283A JP 2017067381 A JP2017067381 A JP 2017067381A
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furnace
furnace wall
brick
bricks
outer shell
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JP5953414B1 (en
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和也 橋本
Kazuya Hashimoto
和也 橋本
貴正 加藤
Takamasa Kato
貴正 加藤
敏光 廣瀬
Toshimitsu Hirose
敏光 廣瀬
由樹 齋藤
Yoshiki Saito
由樹 齋藤
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Mino Ceramic Co Ltd
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Mino Ceramic Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a furnace wall structure of a heating furnace capable of securing a strength as a structure even in the case where a space or a material that is more lightweight than bricks is provided between an outer shell part outside of the furnace and a fireproof brick part inside of the furnace.SOLUTION: A furnace wall structure for a heating furnace comprises: an outer shell part that is provided in a height direction of a furnace wall outside of the furnace on a longitudinal section of the furnace wall; and a fireproof brick part that is provided inside of the furnace on the longitudinal section of the furnace wall by stacking a plurality of fireproof heat insulation bricks in the height direction of the furnace wall. The fireproof brick part includes in the plurality of fireproof heat insulation bricks: a plurality of separation bricks disposed so as to form a space between the fireproof brick part and the outer shell part; and a plurality of connection bricks formed longer than the separation bricks in a furnace outside direction and fixed to the outer shell part by a connection member.SELECTED DRAWING: Figure 1A

Description

本発明は、加熱炉の炉壁構造に関する。   The present invention relates to a furnace wall structure of a heating furnace.

例えば、１６００℃を超える使用温度の焼成炉等の場合、一般的に、最内層に位置する炉材を煉瓦で形成する必要がある。また、焼成炉にて、炉材由来のコンタミネーションを嫌う製品を焼成する場合等では、前述の温度以下であっても最内層に位置する炉材を煉瓦で形成する必要がある。   For example, in the case of a firing furnace having a use temperature exceeding 1600 ° C., it is generally necessary to form the furnace material located in the innermost layer with brick. Moreover, when baking the product which dislikes the contamination derived from a furnace material in a baking furnace etc., it is necessary to form the furnace material located in an innermost layer with a brick even if it is below the above-mentioned temperature.

加熱炉の炉壁の縦断面における炉内側の最内層に位置する炉材を煉瓦で形成する場合、炉壁の強度を保つために、一般的に、バックアップとして使用する最内層以外に位置する炉材についても一定の強度を有するものを使用している。   When the furnace material located in the innermost layer inside the furnace in the longitudinal section of the furnace wall of the heating furnace is made of brick, in order to maintain the strength of the furnace wall, generally, the furnace is located other than the innermost layer used as a backup A material having a certain strength is also used.

例えば特許文献１には、耐久性を向上させるとともに高熱慣性型の炉壁とするため、炉壁の耐火ライニング構成を断熱れんがと耐火れんがの２層構成とする一方、高熱慣性にすることによって本来の試験温度制御性が損なわれるため、冷却ガスの吹き込み口やガス排気口を設けて、炉内温度を制御しやすい構成とした高温曲げ試験炉が開示されている。   For example, in Patent Document 1, in order to improve durability and make a furnace wall of a high thermal inertia type, a fireproof lining configuration of the furnace wall is a two-layer configuration of a heat insulating brick and a fireproof brick. Therefore, a high-temperature bending test furnace is disclosed in which a cooling gas blow-in port and a gas exhaust port are provided to easily control the furnace temperature.

また、例えば特許文献２には、外郭鉄皮と、該外郭鉄皮の内壁に裏張りされた複数の裏張り煉瓦と、該裏張り煉瓦の内側に積層された複数の内張り煉瓦とを備えた炉体構造に関する技術が開示されている。   Further, for example, Patent Document 2 includes an outer shell, a plurality of lining bricks lined on the inner wall of the outer lining, and a plurality of lining bricks laminated on the inner side of the lining brick. Techniques relating to the furnace body structure are disclosed.

特開平８−３２０２８３号公報JP-A-8-320283 特開２０１０−２３６７４０号公報JP 2010-236740 A

炉壁の炉内側に煉瓦を使用する場合の炉壁構造は、外殻部から炉内側まで一定以上の強度を持った素材で構成するのが一般的である。しかしながら、その場合に、炉外側の外殻部と炉内側の煉瓦部との間の中間層に使用する素材は、炉壁の構造物としての強度上の制約から、使用できる選択肢が狭く、省エネルギー効率となる素材を有効活用することが難しい。   When bricks are used for the inside of the furnace wall, the furnace wall structure is generally made of a material having a certain level of strength from the outer shell to the inside of the furnace. However, in that case, the material used for the intermediate layer between the outer shell part of the furnace and the brick part inside the furnace is limited in the options that can be used due to the strength restrictions of the structure of the furnace wall. It is difficult to effectively use efficient materials.

そこで、本発明は、炉外側の外殻部と炉内側の耐火煉瓦部との間に、空間、又は煉瓦よりも軽量な素材を設けた場合であっても構造物としての強度を確保可能な加熱炉の炉壁構造を提供することを目的とする。   Therefore, the present invention can ensure the strength as a structure even when a space or a material lighter than brick is provided between the outer shell portion outside the furnace and the refractory brick portion inside the furnace. It aims at providing the furnace wall structure of a heating furnace.

本発明は、炉壁の縦断面における炉外側に、前記炉壁の高さ方向に沿って設けられた外殻部と、前記炉壁の縦断面における炉内側に、複数の耐火断熱煉瓦が前記炉壁の高さ方向に積層されて設けられた耐火煉瓦部と、を備え、前記耐火煉瓦部は、前記複数の耐火断熱煉瓦のうち、前記外殻部との間に空間を形成可能に配置された複数の離間煉瓦と、前記離間煉瓦よりも炉外側方向に長く形成され、かつ接続部材で前記外殻部に対して固定された複数のつなぎ煉瓦と、を備える、加熱炉の炉壁構造を提供する。   The present invention provides an outer shell portion provided along the height direction of the furnace wall on the outside of the furnace in the longitudinal section of the furnace wall, and a plurality of refractory heat insulating bricks on the inside of the furnace in the longitudinal section of the furnace wall. Refractory bricks provided in a stacked manner in the height direction of the furnace wall, and the refractory bricks are arranged such that a space can be formed between the plurality of refractory and heat insulating bricks and the outer shell. A furnace wall structure of a heating furnace comprising: a plurality of spaced bricks, and a plurality of connecting bricks that are longer than the spaced bricks in the furnace outer side direction and are fixed to the outer shell portion by connecting members. I will provide a.

本発明によれば、炉外側の外殻部と炉内側の耐火煉瓦部との間に、空間、又は煉瓦よりも軽量な素材を設けた場合であっても構造物としての強度を確保可能な加熱炉の炉壁構造を提供することができる。   According to the present invention, it is possible to ensure the strength as a structure even when a space or a material lighter than bricks is provided between the outer shell portion outside the furnace and the refractory brick portion inside the furnace. A furnace wall structure of a heating furnace can be provided.

本発明の一実施形態に係る炉壁構造の一例を模式的に表す縦断面図である。It is a longitudinal section showing typically an example of the furnace wall structure concerning one embodiment of the present invention. 図１Ａに示す領域Ｒの拡大図である。It is an enlarged view of the area | region R shown to FIG. 1A. 図１Ａに示す一例の炉壁構造の変形例を模試的に表す、図１Ｂに対応する部分拡大断面図である。It is a partial expanded sectional view corresponding to Drawing 1B showing typically a modification of an example furnace wall structure shown in Drawing 1A. 図１Ａに示す一例の炉壁構造の別の変形例を模試的に表す、図１Ｂに対応する部分拡大断面図である。It is a partial expanded sectional view corresponding to Drawing 1B showing typically another modification of the example furnace wall structure shown in Drawing 1A. 図１Ａに示す一例の炉壁構造のさらに別の変形例を模試的に表す、図１Ｂに対応する部分拡大断面図である。It is the elements on larger scale corresponding to Drawing 1B showing still another modification of the example furnace wall structure shown in Drawing 1A. 本発明の一実施形態に係り、炉壁構造における耐火煉瓦部の好適な構成例を模式的に表す、図１Ｂに対応する部分拡大断面図である。It is a partial expanded sectional view corresponding to Drawing 1B showing an example of suitable composition of a refractory brick part in a furnace wall structure concerning one embodiment of the present invention typically. 本発明の一実施形態に係る炉壁構造の別の一例を模式的に表す縦断面図である。It is a longitudinal section showing typically another example of the furnace wall structure concerning one embodiment of the present invention.

以下、本発明の実施の形態について説明するが、本発明は以下の実施の形態に限定されるものではない。   Embodiments of the present invention will be described below, but the present invention is not limited to the following embodiments.

本発明の一実施形態に係る加熱炉の炉壁構造は、炉壁の縦断面における炉外側に、炉壁の高さ方向に沿って設けられた外殻部と、炉壁の縦断面における炉内側に、複数の耐火断熱煉瓦が炉壁の高さ方向に積層されて設けられた耐火煉瓦部と、を備える。そして、耐火煉瓦部は、複数の耐火断熱煉瓦のうち、外殻部との間に空間を形成可能に配置された複数の離間煉瓦と、離間煉瓦よりも炉外側方向に長く形成され、かつ接続部材で外殻部に対して固定された複数のつなぎ煉瓦と、を備える。   A furnace wall structure of a heating furnace according to an embodiment of the present invention includes an outer shell portion provided along the height direction of the furnace wall on the outer side of the furnace wall in the longitudinal section, and a furnace in the longitudinal section of the furnace wall. And a firebrick brick portion provided with a plurality of fireproof heat insulating bricks stacked in the height direction of the furnace wall. The refractory brick portion is formed with a plurality of spaced bricks arranged so as to be able to form a space with the outer shell portion among the plurality of refractory heat insulating bricks, and is longer than the spaced brick in the furnace outside direction, and connected. A plurality of connecting bricks fixed to the outer shell with members.

上記構成により、炉壁構造は、炉外側の外殻部と炉内側の耐火煉瓦部との間に、空間、又は煉瓦よりも軽量な素材が設けられても、耐火煉瓦部における複数のつなぎ煉瓦が、接続部材で外殻部に対して固定されているため、炉壁の構造物としての強度を確保可能である。よって、強度上の制約をほとんど受けることなく、炉外側の外殻部と炉内側の耐火煉瓦部との間の空間に、加熱炉の種類や用途に応じて、所望の素材を使用でき、使用できる素材の選択肢を広げることができる。また、炉外側の外殻部と炉内側の耐火煉瓦部との間に、煉瓦よりも軽量な素材（煉瓦よりも密度の低い素材）や煉瓦よりも熱伝導率の低い素材を設けるなどして、そのような省エネルギー効率となる素材を有効活用することができる。   With the above-described configuration, the furnace wall structure has a plurality of connecting bricks in the refractory brick portion even if a space or a material lighter than the brick is provided between the outer shell portion on the outer side of the furnace and the refractory brick portion on the inner side of the furnace. However, since it is being fixed with respect to the outer shell part with the connection member, the intensity | strength as a structure of a furnace wall is securable. Therefore, it is possible to use and use any desired material in the space between the outer shell part outside the furnace and the refractory brick part inside the furnace, depending on the type and application of the heating furnace, with almost no restrictions on strength. The choice of materials that can be expanded. In addition, a material that is lighter than brick (a material having a lower density than brick) or a material with lower thermal conductivity than brick is provided between the outer shell part of the furnace and the refractory brick part inside the furnace. Therefore, it is possible to effectively use materials that are energy-saving.

耐火煉瓦部を構成する複数の耐火断熱煉瓦のうち、複数の離間煉瓦は、外殻部との間に空間を形成可能であるため、その空間を設けたままとしても、その空間に煉瓦よりも軽量な断熱部材を設けても、耐火煉瓦部とともに炉壁構造の断熱機能を高めることが可能である。そして、耐火煉瓦部を構成する複数の耐火断熱煉瓦のうち、複数のつなぎ煉瓦が、離間煉瓦よりも炉外側方向に長く形成されていることで、つなぎ煉瓦と外殻部とを接続部材で容易に固定することが可能である。これによって、炉壁構造は、耐火煉瓦部と外殻部とが接続された一体的な構造となり、外殻部と耐火煉瓦部との間に空間、又は煉瓦よりも軽量な素材を設けた場合でも、炉壁の構造物としての強度を確保することが可能である。   Among a plurality of fireproof and heat insulating bricks constituting a firebrick brick portion, a plurality of spaced bricks can form a space with the outer shell portion, so even if the space is left as it is, it is more than the brick in that space. Even if a lightweight heat insulating member is provided, it is possible to enhance the heat insulating function of the furnace wall structure together with the refractory brick portion. And among a plurality of refractory heat insulation bricks constituting the refractory brick portion, a plurality of connecting bricks are formed longer in the furnace outer direction than the separated bricks, so that the connecting brick and the outer shell portion can be easily connected with a connecting member. It is possible to fix to. As a result, the furnace wall structure becomes an integral structure in which the refractory brick part and the outer shell part are connected, and a space or a material that is lighter than bricks is provided between the outer shell part and the refractory brick part. However, it is possible to ensure the strength of the furnace wall structure.

なお、離間煉瓦よりも炉外側方向に長く形成されているつなぎ煉瓦は、外殻部と接していてもよく、外殻部との間に間隙を形成してもよい。離間煉瓦が外殻部との間に空間を形成可能であるとは、離間煉瓦と外殻部とが十分離れており、上述のつなぎ煉瓦と外殻部との間に形成されてもよい間隙よりも炉内側方向に広く離れていること、及びその空間には後述する断熱部材が充填されてもよいことを表す。   The connecting brick formed longer in the furnace outer direction than the spaced brick may be in contact with the outer shell portion or may form a gap between the outer brick portion. The space between the separated brick and the outer shell means that the spaced brick can form a space between the outer shell and the separated brick and the outer shell. The gap may be formed between the connecting brick and the outer shell. It represents that it is far apart in the furnace inner direction, and that the space may be filled with a heat insulating member to be described later.

次に、図面を参照しながら本実施形態の一例の炉壁構造を挙げて、本実施形態の炉壁構造を詳細に説明する。なお、各図面において、共通する構成部については、同一の符号を付して説明を省略することがある。   Next, the furnace wall structure of the present embodiment will be described in detail with reference to the drawings, with an example of the furnace wall structure of the present embodiment. In addition, in each drawing, about the common component, the same code | symbol may be attached | subjected and description may be abbreviate | omitted.

図１Ａは、本実施形態の一例の炉壁構造１０を模式的に示す縦断面図である。図１Ｂは、図１Ａに示す領域Ｒの拡大図である。図１Ａに示すように、炉壁構造は、炉壁１０の縦断面における炉外側（炉外側方向を示す矢印Ｏ参照）に、炉壁１０の高さ方向Ｈに沿って設けられた外殻部２０を備える。外殻部２０は、好適には炉壁１０の最外層として配置される。外殻部２０の材質は、従来の加熱炉に用いられている鉄皮と同様、鉄、鋼、及び合金鋼等の金属が好適である。   FIG. 1A is a longitudinal sectional view schematically showing a furnace wall structure 10 of an example of the present embodiment. FIG. 1B is an enlarged view of the region R shown in FIG. 1A. As shown in FIG. 1A, the furnace wall structure has an outer shell portion provided along the height direction H of the furnace wall 10 on the furnace outer side (see the arrow O indicating the furnace outer direction) in the longitudinal section of the furnace wall 10. 20. The outer shell 20 is preferably arranged as the outermost layer of the furnace wall 10. The material of the outer shell portion 20 is preferably a metal such as iron, steel, and alloy steel, similar to the iron skin used in conventional heating furnaces.

また、図１Ａに示すように、炉壁構造は、炉壁１０の縦断面における炉内側（炉内側方向を示す矢印Ｉ参照）に、複数の耐火断熱煉瓦３２、３４が炉壁１０の高さ方向Ｈに積層されて設けられた耐火煉瓦部３０を備える。耐火煉瓦部３０は、好適には、炉内側（炉内側方向Ｉ参照）の最内層として配置され、かつ、その最内層の位置に炉壁１０の高さ方向Ｈに耐火断熱煉瓦３２、３４が複数個積層されて形成される。   Further, as shown in FIG. 1A, the furnace wall structure has a plurality of refractory and heat insulating bricks 32 and 34 at the height of the furnace wall 10 on the furnace inner side (see arrow I indicating the furnace inner direction) in the longitudinal section of the furnace wall 10. A fire brick 30 is provided that is stacked in the direction H. The refractory brick portion 30 is preferably arranged as the innermost layer inside the furnace (refer to the furnace inner direction I), and the refractory heat insulating bricks 32 and 34 are arranged in the height direction H of the furnace wall 10 at the position of the innermost layer. A plurality of stacked layers are formed.

耐火煉瓦部３０を構成する耐火断熱煉瓦３２、３４の材質としては、炉壁構造を採用する対象となる加熱炉の種類に応じて、その加熱炉における従来から使用されている耐火断熱煉瓦を適宜用いることができる。耐火断熱煉瓦３２、３４の材質の具体例としては、マグネシア質、マグネシア・カーボン質、マグネシア・クロム質、ドロマイト質、マグネシア・ドロマイト質、マグネシア・ドロマイト・カーボン質、アルミナ・ジルコン質、アルミナ質、アルミナ・シリカ質、及びアルミナ・シリカ・酸化鉄質等を挙げることができる。   As the material of the refractory heat insulating bricks 32 and 34 constituting the refractory brick portion 30, the refractory heat insulating brick conventionally used in the heating furnace is appropriately selected according to the type of the heating furnace to which the furnace wall structure is adopted. Can be used. Specific examples of the material of the fireproof insulating bricks 32 and 34 include magnesia, magnesia / carbon, magnesia / chromium, dolomite, magnesia / dolomite, magnesia / dolomite / carbon, alumina / zircon, alumina, Alumina / silica and alumina / silica / iron oxide may be mentioned.

耐火煉瓦部３０を構成する複数の耐火断熱煉瓦３２、３４は、外殻部２０との間に空間Ｓ１を形成可能な複数の第一の煉瓦３２と、その第一の煉瓦３２の長さよりも炉外側方向Ｏに長い第二の煉瓦３４とを有する。すなわち、耐火煉瓦部３０は、外殻部２０との間に空間Ｓ１を形成可能に配置された複数の第一の煉瓦（以下、「離間煉瓦」と称する）３２と、離間煉瓦３２よりも炉外側方向Ｏに長く形成された複数の第二の煉瓦（以下、「つなぎ煉瓦」と称する）３４と、を備える。そして、複数のつなぎ煉瓦３４は、接続部材４０で外殻部２０に対して固定されている。外殻部２０に対して固定されるつなぎ煉瓦３４が複数存在することで、耐火煉瓦部３０と外殻部２０とが接続された安定した構造をとることが可能となり、炉壁１０の構造物としての強度を確保することが可能である。   The plurality of fire-resistant and heat-insulating bricks 32 and 34 constituting the fire-resistant brick portion 30 are more than the plurality of first bricks 32 capable of forming a space S1 between the outer shell portion 20 and the length of the first brick 32. And a second brick 34 that is long in the furnace outer direction O. That is, the refractory brick portion 30 includes a plurality of first bricks (hereinafter referred to as “separated bricks”) 32 disposed so as to be able to form a space S <b> 1 between the outer shell portion 20 and the spaced brick 32. And a plurality of second bricks (hereinafter referred to as “joining bricks”) 34 formed long in the outer direction O. The plurality of connecting bricks 34 are fixed to the outer shell portion 20 by connection members 40. Since there are a plurality of connecting bricks 34 fixed to the outer shell 20, it becomes possible to take a stable structure in which the refractory brick 30 and the outer shell 20 are connected, and the structure of the furnace wall 10. It is possible to ensure the strength as.

本実施形態において、外殻部２０に対してつなぎ煉瓦３４を固定する接続部材は、外殻部２０とつなぎ煉瓦３４とを直接接続するものでもよく、外殻部２０に設けられた別部材とつなぎ煉瓦３４とを接続する場合などのように、外殻部２０とつなぎ煉瓦３４とを間接的に接続するものでもよい。具体的な接続部材としては、例えば、フック部材等の係止部材、ネジ、ビス及びボルト等の螺合部材、接着剤及び両面テープ等の接着部材などを用いることができる。これらの接続部材の１種又は２種以上を用いることができ、複数のつなぎ煉瓦３４のそれぞれにおいて、異なる種類の接続部材を用いることもできる。   In the present embodiment, the connecting member that fixes the connecting brick 34 to the outer shell 20 may be a member that directly connects the outer shell 20 and the connecting brick 34, and a separate member provided on the outer shell 20. The outer shell 20 and the connecting brick 34 may be indirectly connected as in the case where the connecting brick 34 is connected. As specific connection members, for example, locking members such as hook members, screw members such as screws, screws and bolts, adhesive members such as adhesives and double-sided tapes, and the like can be used. One or more of these connecting members can be used, and different types of connecting members can be used in each of the plurality of connecting bricks 34.

図１Ａ及びＢに示す炉壁構造（炉壁１０）のように、本実施形態では、接続部材として、外殻部２０に対してつなぎ煉瓦３４を固定する係止部材４０を備えることが好ましい。係止部材４０の材質は、熱によって劣化し難いように、鉄、鋼、及び合金鋼等の金属が好適であり、例を挙げれば、ＳＵＳ３０４、ＳＵＳ３１６、ＳＵＳ３１０Ｓ等を用いることができる。   As in the furnace wall structure (furnace wall 10) shown in FIGS. 1A and 1B, in this embodiment, it is preferable to include a locking member 40 that fixes the connecting brick 34 to the outer shell portion 20 as a connecting member. The material of the locking member 40 is preferably a metal such as iron, steel, and alloy steel so that the material is not easily deteriorated by heat. For example, SUS304, SUS316, SUS310S, or the like can be used.

図１Ａ及びＢに示すように、外殻部２０の炉内側（炉内側方向Ｉ参照）に、つなぎ煉瓦３４の外殻部２０側の端部３６側を支持可能な支持部材５０が設けられていることが好ましい。この支持部材５０がつなぎ煉瓦３４の外殻部２０側の端部３６側を支持することによって、つなぎ煉瓦３４と外殻部２０との固定をより容易にでき、かつ、接続部材４０との組み合わせで耐火煉瓦部３０と外殻部２０とのより安定した接続構造をとることが可能である。   As shown in FIGS. 1A and B, a support member 50 capable of supporting the end 36 side of the connecting brick 34 on the outer shell portion 20 side is provided on the inner side of the outer shell portion 20 (see furnace inner direction I). Preferably it is. The support member 50 supports the end 36 side of the connecting brick 34 on the outer shell portion 20 side, whereby the connecting brick 34 and the outer shell portion 20 can be more easily fixed, and the connection member 40 is combined. Thus, a more stable connection structure between the refractory brick portion 30 and the outer shell portion 20 can be taken.

支持部材５０としては、外殻部２０の内側面２０ａから炉内側方向Ｉに向かって設けられた板状の支持部材５０であることが、つなぎ煉瓦３４の外殻部２０側の端部３６側を載置可能な構成である点で好ましい。支持部材５０は、つなぎ煉瓦３４の垂れ下がりを防止可能であるという利点もある。支持部材５０の材質も、熱によって劣化し難いように、前述した係止部材４０の材質と同様の材質が好適である。   The support member 50 is a plate-like support member 50 provided in the furnace inner direction I from the inner side surface 20a of the outer shell portion 20, and the end portion 36 side of the connecting brick 34 on the outer shell portion 20 side. Is preferable in that it can be placed. The support member 50 also has an advantage that it is possible to prevent the connecting brick 34 from hanging down. The material of the support member 50 is also preferably the same material as that of the locking member 40 described above so that the support member 50 is not easily deteriorated by heat.

図１Ａ及びＢに示す炉壁構造（炉壁１０）のように、本実施形態では、接続部材として、外殻部２０に設けられた支持部材５０とつなぎ煉瓦３４とを係止する係止部材４０を備えることが、耐火煉瓦部３０の倒れこみをより防止しやすい観点から好ましい。この観点から、係止部材４０としてフック部材４０を用いることがより好ましい。本例の炉壁構造では、図１Ｂに示すように、つなぎ煉瓦３４に係止部材用溝部３８が設けられているとともに、支持部材５０に係止部材用取付部５２が設けられている構成が、それらの溝部３８及び取付部５２に係止部材４０を容易に取り付けることができる点でさらに好ましい。   As in the furnace wall structure (furnace wall 10) shown in FIGS. 1A and 1B, in this embodiment, as a connecting member, a locking member that locks the supporting member 50 provided on the outer shell 20 and the connecting brick 34. 40 is preferable from the viewpoint that the collapse of the refractory brick portion 30 can be more easily prevented. From this viewpoint, it is more preferable to use the hook member 40 as the locking member 40. In the furnace wall structure of the present example, as shown in FIG. 1B, the connecting brick 34 is provided with a locking member groove 38 and the support member 50 is provided with a locking member mounting portion 52. Further, it is more preferable in that the locking member 40 can be easily attached to the groove portion 38 and the attachment portion 52.

炉壁１０の構造物としての強度をより確保しやすい観点から、炉壁１０の高さ方向Ｈに積層された複数の耐火断熱煉瓦３２、３４において、複数のつなぎ煉瓦３４の間には、少なくとも１つ（より好ましくは複数）の離間煉瓦３２を有することが好ましい。また、少なくとも１つのつなぎ煉瓦３４は、炉壁１０の高さ方向Ｈにおいて、耐火煉瓦部３０の最上端に設けられていることが好ましい。   From the viewpoint of easily ensuring the strength of the furnace wall 10 as a structure, in the plurality of refractory and heat insulating bricks 32 and 34 stacked in the height direction H of the furnace wall 10, at least between the plurality of connecting bricks 34. It is preferable to have one (more preferably a plurality) spaced bricks 32. Moreover, it is preferable that at least one connecting brick 34 is provided at the uppermost end of the refractory brick portion 30 in the height direction H of the furnace wall 10.

さらに、つなぎ煉瓦３４は、高さ方向Ｈに積層された複数の離間煉瓦３２の所定数置きに設けられ、複数のつなぎ煉瓦３４のそれぞれは、高さ方向Ｈにおいて略均等間隔で配置されていることが好ましい。つなぎ煉瓦３４のそれぞれが高さ方向Ｈにおいて略均等間隔で配置されているとは、複数のつなぎ煉瓦３４において、つなぎ煉瓦３４間に配置される離間煉瓦３２の数が同じであることを意味する。つなぎ煉瓦３４間に配置される離間煉瓦３２の数（前記所定数）は、加熱炉の大きさに応じて適宜決定し得るが、好ましくは２〜１０、より好ましくは３〜６である。複数の耐火断熱煉瓦３２、３４において、つなぎ煉瓦３４は、最上端に設けられているとともに、高さ方向Ｈに積層された３〜６つの離間煉瓦３２置きに設けられていることがさらに好ましい。図１Ａに示す炉壁構造では、耐火煉瓦部３０において、高さ方向Ｈに積層された５つの離間煉瓦３２置きに、つなぎ煉瓦３４が設けられている構成が例示されている。   Further, the connecting bricks 34 are provided at a predetermined number of the plurality of spaced bricks 32 stacked in the height direction H, and the plurality of connecting bricks 34 are arranged at substantially equal intervals in the height direction H. It is preferable. That the connecting bricks 34 are arranged at substantially equal intervals in the height direction H means that in the plurality of connecting bricks 34, the number of spaced bricks 32 arranged between the connecting bricks 34 is the same. . The number of the spaced bricks 32 arranged between the connecting bricks 34 (predetermined number) can be appropriately determined according to the size of the heating furnace, but is preferably 2 to 10, more preferably 3 to 6. In the plurality of fireproof and heat insulating bricks 32, 34, it is more preferable that the connecting brick 34 is provided at the uppermost end and is provided for every three to six spaced bricks 32 stacked in the height direction H. In the furnace wall structure shown in FIG. 1A, a configuration is shown in which, in the refractory brick portion 30, connecting bricks 34 are provided on five spaced bricks 32 stacked in the height direction H.

図１に示す炉壁構造（炉壁１０）では、高さ方向Ｈに積層された複数の耐火断熱煉瓦３２、３４のそれぞれは、互いにモルタル等の接着剤で固定されていてもよい。接着剤としては、加熱炉を構成する煉瓦に従来から用いられているものを用いることができる。   In the furnace wall structure (furnace wall 10) shown in FIG. 1, each of the plurality of fireproof and heat insulating bricks 32 and 34 stacked in the height direction H may be fixed to each other with an adhesive such as mortar. As an adhesive, what is conventionally used for the brick which comprises a heating furnace can be used.

図１に示す炉壁構造（炉壁１０）のように、本実施形態では、外殻部２０と離間煉瓦３２との間に形成される空間Ｓ１に、耐火断熱煉瓦３２、３４よりも軽量かつ熱伝導率の低い断熱部材６０が設けられていることが好ましい。この炉壁構造では、上述の通り、接続部材（係止部材４０）で外殻部２０に対してつなぎ煉瓦３４が固定され、炉壁１０の構造物としての強度を確保可能であることから、外殻部２０と離間煉瓦３２との間に形成される空間Ｓ１に、耐火断熱煉瓦３２、３４よりも軽量な断熱部材６０を設けることができる。この断熱部材６０によって、炉壁構造の断熱機能をさらに高めることができる。また、断熱部材６０は、外殻部２０とつなぎ煉瓦３４との間に形成される間隙Ｓ２に設けられていてもよい。   In the present embodiment, like the furnace wall structure (furnace wall 10) shown in FIG. 1, the space S1 formed between the outer shell portion 20 and the separated brick 32 is lighter than the fireproof and heat insulating bricks 32 and 34. It is preferable that a heat insulating member 60 having a low thermal conductivity is provided. In this furnace wall structure, as described above, the connecting brick (locking member 40) is fixed to the outer shell 20 with the connecting brick 34, and the strength of the furnace wall 10 as a structure can be secured. A heat insulating member 60 that is lighter than the refractory heat insulating bricks 32 and 34 can be provided in the space S <b> 1 formed between the outer shell portion 20 and the separated brick 32. With this heat insulating member 60, the heat insulating function of the furnace wall structure can be further enhanced. Further, the heat insulating member 60 may be provided in a gap S <b> 2 formed between the outer shell portion 20 and the connecting brick 34.

断熱部材６０が耐火断熱煉瓦３２、３４よりも軽量であるとは、断熱部材６０の密度が耐火断熱煉瓦３２、３４の密度よりも低いことを意味する。密度はアルキメデス法によって測定される値を用いることができる。また、熱伝導率は、ＪＩＳ Ｒ２６１６：２００１の規定される熱線法（非定常法）によって測定される値を用いることができる。   That the heat insulation member 60 is lighter than the fireproof heat insulation bricks 32 and 34 means that the density of the heat insulation member 60 is lower than the density of the fireproof heat insulation bricks 32 and 34. As the density, a value measured by the Archimedes method can be used. Moreover, the value measured by the heat ray method (unsteady method) prescribed | regulated by JISR2616: 2001 can be used for thermal conductivity.

断熱部材６０の密度は、０．１〜０．６ｇ／ｃｍ3であることが好ましく、０．１〜０．３ｇ／ｃｍ3であることがより好ましい。耐火断熱煉瓦３２、３４の密度は、０．７〜３．５ｇ／ｃｍ3であることが好ましく、１．０〜２．５ｇ／ｃｍ3であることが好ましい。断熱部材６０の１０００℃での熱伝導率は、０．１〜０．５Ｗ／ｍ・Ｋであることが好ましく、０．１〜０．３Ｗ／ｍ・Ｋであることが好ましい。耐火断熱煉瓦３２、３４の１０００℃での熱伝導率は、０．６〜３．５Ｗ／ｍ・Ｋであることが好ましく、１．０〜２．５Ｗ／ｍ・Ｋであることがより好ましい。 The density of the heat insulating member 60 is preferably 0.1 to 0.6 g / cm 3, more preferably 0.1 to 0.3 g / cm 3. Density of insulating refractory bricks 32 and 34 is preferably 0.7~3.5g / cm 3, is preferably 1.0 to 2.5 g / cm 3. The heat conductivity of the heat insulating member 60 at 1000 ° C. is preferably 0.1 to 0.5 W / m · K, and more preferably 0.1 to 0.3 W / m · K. The heat conductivity of the refractory insulating bricks 32 and 34 at 1000 ° C. is preferably 0.6 to 3.5 W / m · K, and more preferably 1.0 to 2.5 W / m · K. .

好適な断熱部材６０としては、例えば、セラミックファイバー、アルミナファイバー、シリカ−マグネシア−カルシア系ファイバー等を用いることができ、これらの１種又は２種以上を用いることができる。断熱部材６０の形態としては、ファイバーを積層したブランケット、ブランケットに無機化合物又は有機化合物のバインダーを添加して成形された板状等の各種形状の成形体、複数のブランケットを積層した積層体が圧縮成形されたブロック等を用いることができる。   As the suitable heat insulating member 60, for example, ceramic fiber, alumina fiber, silica-magnesia-calcia fiber, or the like can be used, and one or more of these can be used. As the form of the heat insulating member 60, a blanket in which fibers are laminated, a molded body in various shapes such as a plate shape formed by adding a binder of an inorganic compound or an organic compound to the blanket, and a laminated body in which a plurality of blankets are laminated are compressed. A molded block or the like can be used.

上述の断熱部材６０のうち、より軽量で、断熱性のよいことから、セラミックファイバーが好ましい。セラミックファイバーは、アルミナ及びシリカを主成分とする繊維であり、例えばアルミナの含有量が３０〜６０質量％及びシリカの含有量が４０〜７０質量％のアルミナ−シリカ質セラミック繊維や、アルミナの含有量が６５質量％以上のアルミナ質セラミック繊維が好ましい。   Among the above-described heat insulating members 60, ceramic fibers are preferable because they are lighter and have better heat insulating properties. The ceramic fiber is a fiber mainly composed of alumina and silica, for example, an alumina-siliceous ceramic fiber having an alumina content of 30 to 60% by mass and a silica content of 40 to 70% by mass, or an alumina content. Alumina ceramic fibers having an amount of 65% by mass or more are preferred.

一般に、炉を加熱する際の熱損失として、炉壁温度を上昇させるための熱量が１０〜３０％程度必要となるが、炉壁温度を上昇させるための熱量は炉壁の熱容量に依存し、炉壁の熱容量が大きくなると、炉壁温度を上昇させるための熱量（熱損失）も大きくなる。これに対して、図１に示す炉壁構造（炉壁１０）では、外殻部２０と離間煉瓦３２との間に形成される空間Ｓ１に断熱部材６０が設けられていることによって、炉壁１０の熱容量を低減させることも可能である。よって、この炉壁構造では、炉壁１０に冷却ガスの吹き込み口やガス排気口を設けるなどの炉壁構造を複雑化かつ高コスト化することなく、炉壁１０の熱容量を低減させることが可能である。   Generally, as a heat loss when heating the furnace, the amount of heat for raising the furnace wall temperature is required to be about 10 to 30%, but the amount of heat for raising the furnace wall temperature depends on the heat capacity of the furnace wall, As the heat capacity of the furnace wall increases, the amount of heat (heat loss) for increasing the furnace wall temperature also increases. On the other hand, in the furnace wall structure (furnace wall 10) shown in FIG. 1, the heat insulation member 60 is provided in the space S1 formed between the outer shell portion 20 and the separated brick 32, so that the furnace wall. It is also possible to reduce the heat capacity of 10. Therefore, in this furnace wall structure, it is possible to reduce the heat capacity of the furnace wall 10 without complicating and increasing the cost of the furnace wall structure such as providing a cooling gas blow-in port and a gas exhaust port in the furnace wall 10. It is.

以上詳述した通り、図１Ａ及びＢに示す炉壁構造（炉壁１０）は、耐火煉瓦部３０における複数のつなぎ煉瓦３４が接続部材４０で外殻部２０に対して固定されている。そのため、炉外側（炉外側方向Ｏ参照）の外殻部２０と炉内側（炉内側方向Ｉ参照）の耐火煉瓦部３０との間に、空間Ｓ１、又は煉瓦よりも軽量な素材（例えば断熱部材６０）が設けられても、炉壁１１の構造物としての強度を確保することができる。よって、構造物としての強度上の制約を受けず、炉外側（炉外側方向Ｏ参照）の外殻部２０と炉内側（炉内側方向Ｉ参照）の耐火煉瓦部３０との間の空間Ｓ１に、加熱炉の種類や用途に応じて、所望の素材を使用でき、使用できる素材の選択の幅を広げることができる。炉壁１０では、外殻部２０と耐火煉瓦部３０との間に断熱部材６０を設けることで、省エネルギー効率となる素材が有効活用され、さらに、構造物として強度を向上させることができるとともに、炉壁構造を複雑化かつ高コスト化することなく、炉壁１０の熱容量を低減させることが可能である。   As described in detail above, in the furnace wall structure (furnace wall 10) shown in FIGS. 1A and 1B, a plurality of connecting bricks 34 in the refractory brick portion 30 are fixed to the outer shell portion 20 by connection members 40. Therefore, a material (for example, a heat insulating member) that is lighter than the space S1 or the brick between the outer shell portion 20 on the furnace outer side (see the furnace outer direction O) and the refractory brick portion 30 on the furnace inner side (see the furnace inner direction I). Even if 60) is provided, the strength of the furnace wall 11 as a structure can be ensured. Therefore, without being restricted in strength as a structure, in the space S1 between the outer shell portion 20 on the furnace outer side (see the furnace outer direction O) and the refractory brick portion 30 on the furnace inner side (see the furnace inner direction I). Depending on the type and application of the heating furnace, desired materials can be used, and the range of selection of usable materials can be expanded. In the furnace wall 10, by providing the heat insulating member 60 between the outer shell portion 20 and the refractory brick portion 30, a material that becomes energy saving efficiency can be effectively utilized, and further, the strength can be improved as a structure. It is possible to reduce the heat capacity of the furnace wall 10 without complicating and increasing the cost of the furnace wall structure.

本実施形態の炉壁構造は、以下の図２Ａ〜Ｃ、図３及び図４を参照しながら説明される構成をとることも可能である。   The furnace wall structure of this embodiment can also take the structure demonstrated referring FIG. 2A-C, FIG.3, and FIG.4 below.

図２Ａ〜Ｃは、図１Ａ及びＢに示す一例の炉壁構造の変形例を模試的に表す部分拡大断面図である。前述の図１Ａ及びＢに示す炉壁構造は、外殻部２０とつなぎ煉瓦３４とを間接的に接続する係止部材（接続部材）４０を備えるが、図２Ａに示す炉壁構造のように、外殻部２０に直接設けられ、外殻部２０に対してつなぎ煉瓦３４を係止して固定する係止部材４２を用いることもできる。   2A to 2C are partial enlarged cross-sectional views schematically showing modifications of the example furnace wall structure shown in FIGS. 1A and 1B. The furnace wall structure shown in FIGS. 1A and 1B described above includes a locking member (connection member) 40 that indirectly connects the outer shell portion 20 and the connecting brick 34, but like the furnace wall structure shown in FIG. 2A. It is also possible to use a locking member 42 that is provided directly on the outer shell portion 20 and locks and fixes the connecting brick 34 to the outer shell portion 20.

また、前述の図１Ａ及びＢに示す炉壁構造では、つなぎ煉瓦３４は、外殻部２０との間に間隙Ｓ２を形成して設けられているが、つなぎ煉瓦３４は、外殻部２０の内側面２０ａに接触する長さを有し、外殻部２０の内側面２０ａに接触して設けられていてもよい。この場合、接続部材としては上述の係止部材４０、４２を好適に用いることができるほか、螺合部材や接着部材も用いることができる。例えば、図２Ｂに示すように、外殻部２０とつなぎ煉瓦３４とが、外殻部２０の炉外側からビス又はネジ等の螺合部材４４で固定されている構成や、図２Ｃに示すように、外殻部２０の内側面２０ａとつなぎ煉瓦３４の炉外側（炉外側方向Ｏ参照）の端部３６とが接着剤又は接着テープ等の接着部材４６で固定されている構成をとることも可能である。図２Ａ〜Ｃに示す構成例では、前述の支持部材５０を有していてもよく、有していなくてもよい。   In the furnace wall structure shown in FIGS. 1A and 1B described above, the connecting brick 34 is provided with a gap S2 between the outer shell 20 and the connecting brick 34. It may have a length that contacts the inner side surface 20 a and may be provided in contact with the inner side surface 20 a of the outer shell portion 20. In this case, as the connecting member, the above-described locking members 40 and 42 can be suitably used, and a screwing member or an adhesive member can also be used. For example, as shown in FIG. 2B, the outer shell 20 and the connecting brick 34 are fixed from the outside of the furnace of the outer shell 20 with a screwing member 44 such as a screw or a screw, or as shown in FIG. 2C. In addition, the inner side surface 20a of the outer shell portion 20 and the end portion 36 of the connecting brick 34 on the furnace outer side (refer to the furnace outer direction O) may be fixed by an adhesive member 46 such as an adhesive or an adhesive tape. Is possible. In the configuration example shown in FIGS. 2A to 2C, the support member 50 described above may or may not be included.

図３は、本実施形態に係る炉壁構造における耐火煉瓦部３０の好適な構成例を模式的に表す部分拡大断面図である。図３に示すように、耐火煉瓦部３０は、複数の耐火断熱煉瓦３２、３４のそれぞれの上面３２ａ、３４ａ及び下面３２ｂ、３４ｂに、複数の耐火断熱煉瓦３２、３４のそれぞれが高さ方向Ｈに隣接するもの同士で互いに嵌合可能な嵌合構造を有することが好ましい。この嵌合構造によって、炉壁１０の高さ方向Ｈに隣接する耐火断熱煉瓦３２、３４同士でずれを防止することが可能である。嵌合構造としては、複数の耐火断熱煉瓦それぞれの上面及び下面（すなわち、離間煉瓦３２の上面３２ａ及び下面３２ｂ、並びにつなぎ煉瓦３４の上面３４ａ及び下面３４ｂ）に形成された凹構造３２４、３４４及び凸構造３２２、３４２の組み合わせであることが、簡易な構成で確実にずれの防止を実現可能である点からより好ましい。   FIG. 3 is a partial enlarged cross-sectional view schematically showing a preferred configuration example of the refractory brick portion 30 in the furnace wall structure according to the present embodiment. As shown in FIG. 3, the refractory brick portion 30 has a plurality of refractory heat insulating bricks 32, 34 on the upper surface 32 a, 34 a and lower surfaces 32 b, 34 b of the plurality of refractory heat insulating bricks 32, 34. It is preferable to have a fitting structure that can be fitted to each other adjacent to each other. With this fitting structure, it is possible to prevent deviation between the refractory heat insulating bricks 32 and 34 adjacent to each other in the height direction H of the furnace wall 10. As the fitting structure, concave structures 324 and 344 formed on the upper surface and the lower surface of each of the plurality of fireproof and heat insulating bricks (that is, the upper surface 32a and the lower surface 32b of the separation brick 32 and the upper surface 34a and the lower surface 34b of the connecting brick 34) The combination of the convex structures 322 and 342 is more preferable from the viewpoint that it is possible to reliably prevent deviation with a simple configuration.

図３に示す炉壁構造では、離間煉瓦３２及びつなぎ煉瓦３４は、それぞれ、上面３２ａ、３４ａに凸構造３２２、３４２を有し、かつ下面３２ｂ、３４ｂに凹構造３２４、３４４を有する嵌合構造を備える構成が例示されているが、嵌合構造はこれに限定されない。すなわち、図示しないが、複数の耐火断熱煉瓦３２、３４のそれぞれは、耐火断熱煉瓦３２、３４の上面に凹構造を有し、かつ下面に凸構造を有する嵌合構造を備えていてもよい。また、複数の耐火断熱煉瓦３２、３４のそれぞれは、耐火断熱煉瓦３２、３４の上面に凹構造及び凸構造の両方を有し、耐火断熱煉瓦３２、３４の下面に、上面の凹構造に嵌合する凸構造及び上面の凸構造に嵌合する凹構造を有する嵌合構造を備えていてもよい。   In the furnace wall structure shown in FIG. 3, the spaced brick 32 and the connecting brick 34 have a fitting structure having convex structures 322 and 342 on the upper surfaces 32a and 34a and concave structures 324 and 344 on the lower surfaces 32b and 34b, respectively. However, the fitting structure is not limited to this. That is, although not shown, each of the plurality of fireproof and heat insulating bricks 32 and 34 may have a fitting structure having a concave structure on the upper surface of the fireproof and heat insulating bricks 32 and 34 and a convex structure on the lower surface. Further, each of the plurality of fireproof and heat insulating bricks 32 and 34 has both a concave structure and a convex structure on the upper surface of the fireproof and heat insulating bricks 32 and 34, and is fitted to the lower surface of the fireproof and heat insulating bricks 32 and 34 in the concave structure on the upper surface. You may provide the fitting structure which has the concave structure fitted to the convex structure to match | combine, and the convex structure of an upper surface.

また、耐火断熱煉瓦３２、３４の上面３２ａ、３４ａ及び下面３２ｂ、３４ｂに備える凹構造３２４、３４４及び凸構造３２２、３４２の数は、特に限定されず、１つでも複数でもよい。さらに、凹構造３２４、３４４及び凸構造３２２、３４２の耐火断熱煉瓦３２、３４の上下面における位置も特に限定されず、例えば、上下面における長さ方向又は幅方向の略中央位置にライン状又は点状に設けることができる。   Moreover, the number of the concave structures 324 and 344 and the convex structures 322 and 342 provided on the upper surfaces 32a and 34a and the lower surfaces 32b and 34b of the fireproof and heat insulating bricks 32 and 34 is not particularly limited, and may be one or plural. Further, the positions of the concave structures 324 and 344 and the convex structures 322 and 342 on the upper and lower surfaces of the fireproof and heat insulating bricks 32 and 34 are not particularly limited. It can be provided in the form of dots.

なお、図３に示すように、炉壁構造は、外殻部２０とつなぎ煉瓦３４との間に形成される間隙Ｓ２に断熱部材６０が設けられておらず、その間隙Ｓ２を有する構成をとることもできる。   As shown in FIG. 3, the furnace wall structure has a structure in which the heat insulating member 60 is not provided in the gap S2 formed between the outer shell portion 20 and the connecting brick 34, and the gap S2 is provided. You can also

図４は、本実施形態に係る炉壁構造（炉壁１１）の別の一例を模式的に表す縦断面図である。図４に示す炉壁構造のように、本実施形態では、外殻部２０と離間煉瓦３２との間に空間Ｓ１が設けられている構成とすることもできる。図４に示す炉壁構造は、図１に示す炉壁構造と比較して、外殻部２０と離間煉瓦３２との間に形成される空間Ｓ１に前述の断熱部材が設けられていない点で異なる。また、図４に示す炉壁構造は、前述の図３に示す炉壁構造と同様に、複数の耐火断熱煉瓦３２、３４のそれぞれの上面３２ａ、３４ａ及び下面３２ｂ、３４ｂに、複数の耐火断熱煉瓦３２、３４のそれぞれが高さ方向Ｈに隣接するもの同士で互いに嵌合可能な嵌合構造を有する点でも、図１に示す炉壁構造と異なる。   FIG. 4 is a longitudinal sectional view schematically showing another example of the furnace wall structure (furnace wall 11) according to the present embodiment. As in the furnace wall structure shown in FIG. 4, in this embodiment, a configuration in which a space S <b> 1 is provided between the outer shell portion 20 and the separated brick 32 can also be adopted. The furnace wall structure shown in FIG. 4 is different from the furnace wall structure shown in FIG. 1 in that the above-described heat insulating member is not provided in the space S1 formed between the outer shell portion 20 and the separated brick 32. Different. Further, the furnace wall structure shown in FIG. 4 has a plurality of refractory heat insulations on the upper surfaces 32a and 34a and the lower surfaces 32b and 34b of the plurality of refractory heat insulation bricks 32 and 34, similarly to the furnace wall structure shown in FIG. The bricks 32 and 34 are different from the furnace wall structure shown in FIG. 1 in that each of the bricks 32 and 34 adjacent to each other in the height direction H has a fitting structure that can be fitted to each other.

図４に示す炉壁構造（炉壁１１）のように、外殻部２０と離間煉瓦３２との間に形成される空間Ｓ１をそのまま空間Ｓ１の状態としておいても、炉壁構造の断熱機能を高めること、及び炉壁１１の熱容量を低減させることは可能である。なお、これらの効果の観点と、構造物としての強度を向上させ得る観点から、前記空間Ｓ１に前述の断熱部材６０を設けることがより好ましい。   As in the furnace wall structure (furnace wall 11) shown in FIG. 4, even if the space S1 formed between the outer shell portion 20 and the separated brick 32 is left in the state of the space S1, the heat insulating function of the furnace wall structure is maintained. And the heat capacity of the furnace wall 11 can be reduced. In addition, from the viewpoint of these effects and the viewpoint of improving the strength as a structure, it is more preferable to provide the above-described heat insulating member 60 in the space S1.

本実施形態の炉壁構造は、これまでに述べた炉壁構造に関する各構成を任意に組み合わせて構成することもできる。   The furnace wall structure of this embodiment can also be configured by arbitrarily combining the respective structures related to the furnace wall structure described so far.

本実施形態の加熱炉の炉壁構造は、例えば、高温（例えば１６００℃を超える高温）の加熱炉を用いる産業分野（例えば、窯業、ガラス製造業、及び鉄鋼業等）で有効に利用される。本実施形態の加熱炉の炉壁構造を採用し得る対象の好適な加熱炉としては、例えば、焼成炉及びガラス溶解炉等のガラス・窯業炉、金属材料の焼入炉、焼鈍炉、及び窒化炉等の金属熱処理炉、並びに鉄鋼等の金属材料の圧延炉及び鍛造炉等の金属加熱炉などを挙げることができる。本実施形態の加熱炉の炉壁構造は、より好適には、焼成炉及びガラス溶解炉等のガラス・窯業炉に採用される。   The furnace wall structure of the heating furnace of the present embodiment is effectively used, for example, in an industrial field (for example, a ceramic industry, a glass manufacturing industry, a steel industry, etc.) using a high-temperature (eg, a high temperature exceeding 1600 ° C.) heating furnace. . Suitable heating furnaces that can adopt the furnace wall structure of the heating furnace of the present embodiment include, for example, glass and ceramic furnaces such as firing furnaces and glass melting furnaces, quenching furnaces for metal materials, annealing furnaces, and nitriding Examples thereof include a metal heat treatment furnace such as a furnace, a metal heating furnace such as a rolling furnace and a forging furnace for a metal material such as steel. The furnace wall structure of the heating furnace of the present embodiment is more preferably employed in glass / ceramic furnaces such as a firing furnace and a glass melting furnace.

以上詳述した通り、本実施形態の加熱炉の炉壁構造は、以下のような構成をとることができる。
［１］炉壁の縦断面における炉外側に、前記炉壁の高さ方向に沿って設けられた外殻部と、前記炉壁の縦断面における炉内側に、複数の耐火断熱煉瓦が前記炉壁の高さ方向に積層されて設けられた耐火煉瓦部と、を備え、前記耐火煉瓦部は、前記複数の耐火断熱煉瓦のうち、前記外殻部との間に空間を形成可能に配置された複数の離間煉瓦と、前記離間煉瓦よりも炉外側方向に長く形成され、かつ接続部材で前記外殻部に対して固定された複数のつなぎ煉瓦と、を備える、加熱炉の炉壁構造。
［２］前記接続部材として、前記外殻部に対して前記つなぎ煉瓦を固定する係止部材を備える前記［１］に記載の加熱炉の炉壁構造。
［３］前記外殻部の前記炉内側に、前記つなぎ煉瓦の前記外殻部側の端部側を支持可能な支持部材が設けられている前記［１］又は［２］に記載の加熱炉の炉壁構造。
［４］前記接続部材として、前記外殻部に設けられた前記支持部材と、前記つなぎ煉瓦とを係止する係止部材を備える前記［３］に記載の加熱炉の炉壁構造。
［５］前記つなぎ煉瓦は、前記高さ方向に積層された前記複数の離間煉瓦の所定数置きに設けられており、前記複数のつなぎ煉瓦のそれぞれは、前記高さ方向において略均等間隔で配置されている前記［１］〜［４］のいずれかに記載の加熱炉の炉壁構造。
［６］前記耐火煉瓦部は、前記複数の耐火断熱煉瓦のそれぞれの上面及び下面に、前記複数の耐火断熱煉瓦のそれぞれが前記高さ方向に隣接するもの同士で互いに嵌合可能な嵌合構造を有する前記［１］〜［５］のいずれかに記載の加熱炉の炉壁構造。
［７］前記外殻部と前記離間煉瓦との間に形成される空間に、前記耐火断熱煉瓦よりも軽量かつ熱伝導率の低い断熱部材が設けられている前記［１］〜［６］のいずれかに記載の加熱炉の炉壁構造。
［８］前記外殻部と前記離間煉瓦との間に空間が設けられている前記［１］〜［６］のいずれかに記載の加熱炉の炉壁構造。 As described above in detail, the furnace wall structure of the heating furnace of the present embodiment can have the following configuration.
[1] An outer shell portion provided along the height direction of the furnace wall on the outside of the furnace wall in the longitudinal section of the furnace wall, and a plurality of refractory heat insulating bricks on the inside of the furnace in the longitudinal section of the furnace wall. Fire bricks provided in a stacked manner in the height direction of the wall, and the fire bricks are arranged such that a space can be formed between the plurality of fire bricks and the outer shell part. A furnace wall structure of a heating furnace, comprising: a plurality of spaced bricks; and a plurality of connecting bricks that are formed longer in the furnace outer direction than the spaced bricks and are fixed to the outer shell portion by connecting members.
[2] The furnace wall structure of the heating furnace according to [1], further including a locking member that fixes the connecting brick to the outer shell portion as the connection member.
[3] The heating furnace according to [1] or [2], wherein a support member capable of supporting an end side of the connecting brick on the outer shell side is provided inside the furnace of the outer shell. Furnace wall structure.
[4] The furnace wall structure of the heating furnace according to [3], wherein the connection member includes a locking member that locks the support member provided in the outer shell portion and the connecting brick.
[5] The connecting bricks are provided at a predetermined number of the plurality of spaced bricks stacked in the height direction, and the plurality of connecting bricks are arranged at substantially equal intervals in the height direction. The furnace wall structure of a heating furnace according to any one of [1] to [4].
[6] The refractory brick portion has a fitting structure in which each of the plurality of refractory and heat insulating bricks can be fitted to each other on the upper surface and the lower surface of the plurality of refractory and heat insulating bricks. The furnace wall structure of a heating furnace according to any one of [1] to [5].
[7] The above [1] to [6], wherein a heat insulating member that is lighter and has a lower thermal conductivity than the refractory heat insulating brick is provided in a space formed between the outer shell portion and the spaced brick. The furnace wall structure of the heating furnace in any one.
[8] The furnace wall structure of the heating furnace according to any one of [1] to [6], wherein a space is provided between the outer shell portion and the separated brick.

１０ ：炉壁（炉壁構造）
２０ ：外殻部
３０ ：耐火煉瓦部
３２ ：離間煉瓦
３２２：凸構造
３２４：凹構造
３４ ：つなぎ煉瓦
３４２：凸構造
３４４：凹構造
４０ ：係止部材
４２ ：係止部材
４４ ：螺合部材
４６ ：接着部材
５０ ：支持部材
６０ ：断熱部材
Ｓ１ ：空間 10: Furnace wall (furnace wall structure)
20: Outer shell part 30: Refractory brick part 32: Spacing brick 322: Convex structure 324: Concave structure 34: Brick brick 342: Convex structure 344: Concave structure 40: Locking member 42: Locking member 44: Screw member 46 : Adhesive member 50: Support member 60: Heat insulation member S1: Space

Claims (8)

炉壁の縦断面における炉外側に、前記炉壁の高さ方向に沿って設けられた外殻部と、
前記炉壁の縦断面における炉内側に、複数の耐火断熱煉瓦が前記炉壁の高さ方向に積層されて設けられた耐火煉瓦部と、を備え、
前記耐火煉瓦部は、前記複数の耐火断熱煉瓦のうち、前記外殻部との間に空間を形成可能に配置された複数の離間煉瓦と、前記離間煉瓦よりも炉外側方向に長く形成され、かつ接続部材で前記外殻部に対して固定された複数のつなぎ煉瓦と、を備える、加熱炉の炉壁構造。 On the outside of the furnace in the longitudinal section of the furnace wall, an outer shell portion provided along the height direction of the furnace wall;
A firebrick brick portion provided with a plurality of fireproof heat insulating bricks laminated in the height direction of the furnace wall on the furnace inner side in the longitudinal section of the furnace wall,
The refractory brick portion is a plurality of spaced bricks arranged so as to form a space between the outer shell portion among the plurality of refractory heat insulating bricks, and is formed longer in the furnace outer direction than the spaced brick, A furnace wall structure of a heating furnace, comprising: a plurality of connecting bricks fixed to the outer shell portion by connecting members. 前記接続部材として、前記外殻部に対して前記つなぎ煉瓦を固定する係止部材を備える請求項１に記載の加熱炉の炉壁構造。   The furnace wall structure of a heating furnace according to claim 1, further comprising a locking member that fixes the connecting brick to the outer shell portion as the connecting member. 前記外殻部の前記炉内側に、前記つなぎ煉瓦の前記外殻部側の端部側を支持可能な支持部材が設けられている請求項１又は２に記載の加熱炉の炉壁構造。   The furnace wall structure of the heating furnace of Claim 1 or 2 with which the supporting member which can support the edge part side by the side of the said outer shell part of the said connecting brick is provided in the said furnace inner side of the said outer shell part. 前記接続部材として、前記外殻部に設けられた前記支持部材と、前記つなぎ煉瓦とを係止する係止部材を備える請求項３に記載の加熱炉の炉壁構造。   The furnace wall structure of a heating furnace according to claim 3, comprising a locking member that locks the support member provided on the outer shell portion and the connecting brick as the connection member. 前記つなぎ煉瓦は、前記高さ方向に積層された前記複数の離間煉瓦の所定数置きに設けられており、
前記複数のつなぎ煉瓦のそれぞれは、前記高さ方向において略均等間隔で配置されている請求項１〜４のいずれか１項に記載の加熱炉の炉壁構造。 The connecting bricks are provided every predetermined number of the plurality of spaced bricks stacked in the height direction,
The furnace wall structure of a heating furnace according to any one of claims 1 to 4, wherein each of the plurality of connecting bricks is arranged at substantially equal intervals in the height direction. 前記耐火煉瓦部は、前記複数の耐火断熱煉瓦のそれぞれの上面及び下面に、前記複数の耐火断熱煉瓦のそれぞれが前記高さ方向に隣接するもの同士で互いに嵌合可能な嵌合構造を有する請求項１〜５のいずれか１項に記載の加熱炉の炉壁構造。   The refractory brick portion has a fitting structure on the upper surface and the lower surface of each of the plurality of refractory heat insulating bricks, each of the plurality of refractory heat insulating bricks being adjacent to each other in the height direction. Item 6. A furnace wall structure of a heating furnace according to any one of Items 1 to 5. 前記外殻部と前記離間煉瓦との間に形成される空間に、前記耐火断熱煉瓦よりも軽量かつ熱伝導率の低い断熱部材が設けられている請求項１〜６のいずれか１項に記載の加熱炉の炉壁構造。   The space formed between the outer shell portion and the spaced brick is provided with a heat insulating member that is lighter and lower in thermal conductivity than the refractory heat insulating brick. The furnace wall structure of the heating furnace. 前記外殻部と前記離間煉瓦との間に空間が設けられている請求項１〜６のいずれか１項に記載の加熱炉の炉壁構造。   The furnace wall structure of a heating furnace according to any one of claims 1 to 6, wherein a space is provided between the outer shell portion and the separated brick.
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