JPS6236074Y2 - - Google Patents
Info
- Publication number
- JPS6236074Y2 JPS6236074Y2 JP11836082U JP11836082U JPS6236074Y2 JP S6236074 Y2 JPS6236074 Y2 JP S6236074Y2 JP 11836082 U JP11836082 U JP 11836082U JP 11836082 U JP11836082 U JP 11836082U JP S6236074 Y2 JPS6236074 Y2 JP S6236074Y2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- refractory
- wall
- heat
- ceiling
- 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
Links
- 239000011449 brick Substances 0.000 description 15
- 240000008881 Oenanthe javanica Species 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 239000011819 refractory material Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【考案の詳細な説明】
本考案は特定形状の耐火物、特には加熱炉のセ
リ受け煉瓦に好便な特定形状の耐火物に関するも
のである。[Detailed Description of the Invention] The present invention relates to a refractory having a specific shape, particularly to a refractory having a specific shape that is convenient for use as a receptacle brick for a heating furnace.
窯業製品の焼成に用いるトンネル炉やバツチ
炉、ガラス窯や金属溶解炉、鉄鋼製品の加工や熱
処理に用いる鉄鋼加熱炉や均熱炉などにおいては
800℃、特には1200℃以上の高温の熱風下で被加
熱物を加熱するので、これらの加熱炉の炉壁には
かかる高温に耐えられるように耐火材や断熱材
を、たとえば厚さ1.5ｍにも達するような複雑か
つ多層の構造が要請され、特に天井部は温度も高
くなるのでより厚く重量の大きい炉壁構造とな
り、同時にこうした重量物を支えるために天井部
のみならず側壁部も含めて堅固な構造が必要で、
一口でいえば築炉に所要の炉材の質も量もスペー
スも高価につくものであつた。一方、かかる加熱
炉を操業するにあたつても、炉壁の熱容量が大き
いため操業開始時の熱上げに長時間と多くの熱量
を必要とし、所定の高温を維持するには炉壁から
の熱ロスはきわめて大きく、また送入する熱風量
に見合う量のまだかなり高温の排ガスにもち去ら
れる熱ロスも大きく、この排ガスから熱回収を行
なうには別途熱交換器を設けねばならないなどの
問題点を有していた。 Tunnel furnaces and batch furnaces used for firing ceramic products, glass kilns and metal melting furnaces, steel heating furnaces and soaking furnaces used for processing and heat treating steel products, etc.
Since the objects to be heated are heated under hot air at a high temperature of 800℃, especially 1200℃ or higher, the walls of these heating furnaces are coated with refractory and heat insulating materials, such as 1.5m thick, to withstand such high temperatures. A complicated and multi-layered structure is required, and the temperature in the ceiling is particularly high, resulting in a thicker and heavier furnace wall structure.At the same time, in order to support such heavy objects, not only the ceiling but also the side walls must be constructed. It requires a solid structure,
Simply put, the quality, quantity, and space required for furnace construction were expensive. On the other hand, when operating such a heating furnace, since the heat capacity of the furnace wall is large, it takes a long time and a large amount of heat to raise the temperature at the start of operation, and in order to maintain a predetermined high temperature, a large amount of heat is required from the furnace wall. The heat loss is extremely large, and the heat loss that is carried away by the exhaust gas, which is still quite hot in proportion to the amount of hot air that is sent in, is also large, and there are problems such as the need to install a separate heat exchanger to recover heat from this exhaust gas. It had a point.
本考案はこれらの問題点を解決するための特定
形状を有する耐火物を提供するもので、すなわち
本考案は略直方体を一稜に平行かつ該一稜を含ま
ぬ一斜面で切截した外形状の耐火物において、該
一稜を含む一面と該斜面との間に連通する複数個
の流路を設けてあることを特徴とする耐火物を提
供するものである。 The present invention provides a refractory having a specific shape to solve these problems.In other words, the present invention has an outer shape of a substantially rectangular parallelepiped cut by a slope parallel to one edge and not including the edge. The present invention provides a refractory characterized in that a plurality of channels are provided that communicate with one surface including the one edge and the slope.
以下に図面に基づいて本考案を説明する。 The present invention will be explained below based on the drawings.
第１図に示すように、アルミナ煉瓦などの上質
耐火物で構築した炉側壁１および鋼材で組んだ架
構３の梁４からの吊ビーム５によつて支持される
シヤモツト煉瓦などの低級耐火材で構築した炉天
井壁２を有するトンネル炉において、炉側壁の天
井近くの部位にヘツダー６，６′および本考案の
実施例である耐火物７，７′が配設されている。
向かいあう同形の耐火物７，７′の間にはセリ煉
瓦８からなる内壁９がアーチ状に構築されてい
る。 As shown in Figure 1, the furnace side walls 1 are constructed of high-quality refractories such as alumina bricks, and are supported by suspension beams 5 from beams 4 of a frame 3 constructed of steel. In the tunnel furnace having the constructed furnace ceiling wall 2, headers 6, 6' and refractories 7, 7', which are embodiments of the present invention, are arranged on the furnace side walls near the ceiling.
An inner wall 9 made of serpentine bricks 8 is constructed in an arch shape between the facing refractories 7 and 7' of the same shape.
セリ煉瓦８は等脚台形状の断面を有する直角柱
状であつて、台形の長い底は炉天井側に、短かい
底は炉内側に向いている。また、セリ煉瓦８には
上底面と下底面との間に連通する複数個の排ガス
流路と、両斜面の間に連通する複数個の空気流路
が設けられていて、いわゆる直交形換熱体ユニツ
トを形成している。 The seri bricks 8 are in the shape of a right rectangular column with an isosceles trapezoidal cross section, with the long bottom of the trapezoid facing toward the furnace ceiling and the short bottom facing toward the inside of the furnace. In addition, the seri brick 8 is provided with a plurality of exhaust gas passages communicating between the upper base and the lower base, and a plurality of air passages communicating between both slopes, so-called orthogonal heat transfer. It forms a body unit.
耐火物７は第２図に示すような形状をしてい
る。すなわち三つの稜７ｊ−７ｇ，７ｊ−７ｂ，
７ｊ−７ｉで規定される略直方体において一稜７
ｊ−７ｉに平行かつ該一稜を含まぬ一斜面７ｃ−
７ｄ−７ｅ−７ｆ（以下、セリ受け面１３とい
う）で切截した外形状をしており、該一稜を含む
一面７ｊ−７ｉ−７ａ−７ｂ（以下、ヘツダー面
１４という）とセリ受け面との間に連通する複数
個の流路１０が五角形状の側面７ａ−７ｄ−７ｅ
−７ｈ−７ｉおよび７ｂ−７ｃ−７ｆ−７ｇ−７
ｊに平行に設けられている。この耐火物７は面７
ｈ−７ｉ−７ｊ−７ｇを底面とし、面７ａ−７ｂ
−７ｃ−７ｄを上面としてその上下に積まれるア
ルミナ煉瓦などと共に炉側壁を構成する。ヘツダ
ー面は炉の外側を向いてヘツダー６，６′の開口
面と接し、セリ受け面の上にはセリ煉瓦８が逐次
積まれて内壁のアーチを形成する。二つの側面に
は同様の耐火物７が並んで配置される。セリ煉瓦
の空気流路開口位置は耐火物７のセリ受け面の流
路１０の開口位置とほぼ一致するように構成され
ている。 The refractory 7 has a shape as shown in FIG. That is, three edges 7j-7g, 7j-7b,
One edge 7 in the approximately rectangular parallelepiped defined by 7j-7i
A slope 7c- parallel to j-7i and not including the edge
It has an outer shape cut by 7d-7e-7f (hereinafter referred to as the auction receiving surface 13), and one side including the edge 7j-7i-7a-7b (hereinafter referred to as the header surface 14) and the auction receiving surface. A plurality of channels 10 communicating with each other have pentagonal side surfaces 7a-7d-7e.
-7h-7i and 7b-7c-7f-7g-7
It is provided parallel to j. This refractory 7 is surface 7
h-7i-7j-7g as the bottom surface, surface 7a-7b
-7c-7d is the upper surface, and together with alumina bricks and the like stacked above and below, the furnace side wall is constituted. The header surface faces the outside of the furnace and contacts the opening surfaces of the headers 6, 6', and the seri bricks 8 are successively stacked on the seri receiving surface to form an arch of the inner wall. Similar refractories 7 are arranged side by side on the two sides. The opening position of the air passage in the seri brick is configured to substantially match the opening position of the air passage 10 on the seri receiving surface of the refractory 7.
炉内に送入された約1400℃の熱風は炉内の物品
を加熱したのち、約1300℃の排ガスとなつてセリ
煉瓦に設けられている多数個の排ガス流路を内壁
の炉内側から天井側へゆるやかに流速で通過し、
炉天井壁２と内壁９との間の空間に開口する図示
していない排気ダクトを経て炉外に排出される。
一方、予熱されるべき空気は炉外から入口側ヘツ
ダー６に導かれ、入口側の耐火物７の流路１０を
経て、セリ煉瓦に設けられている多数個の空気流
路を適宜な流速で通過し、この間に排ガスと熱交
換して加熱され、出口側の耐火物７′の流路を経
て、出口側ヘツダー６′から加熱された予熱空気
として回収される。なお、空気に代えて他の適宜
な流体を流してもよい。 The hot air of approximately 1,400°C that is sent into the furnace heats the items inside the furnace, and then becomes exhaust gas of approximately 1,300°C, which flows through the numerous exhaust gas passages provided in the seri bricks from the inside of the furnace on the inner wall to the ceiling. It passes slowly to the side,
The gas is discharged to the outside of the furnace through an exhaust duct (not shown) that opens into the space between the furnace ceiling wall 2 and the inner wall 9.
On the other hand, air to be preheated is led from outside the furnace to the inlet header 6, passes through the flow path 10 of the refractory 7 on the inlet side, and flows through the numerous air flow paths provided in the seri bricks at an appropriate flow rate. During this time, the air is heated by exchanging heat with the exhaust gas, passes through the flow path of the refractory 7' on the outlet side, and is recovered as heated preheated air from the header 6' on the outlet side. Note that other suitable fluids may be flowed instead of air.
本考案耐火物を用いたかかる加熱炉は次のよう
な効果を奏する。すなわち、従来の加熱炉では、
例えば炉内加熱温度約1400℃に対し、たかだか
100℃しか低くない約1300℃の高温排ガスが多量
の顕熱を有したまま炉外に排出され、その熱ロス
は大きなものであり、またこの熱ロスをいくらか
でも回収するためには炉外に新たな高温に耐える
熱交換器を設けねばならぬ不便があつたのに対
し、かかる加熱炉においては、排ガスと被加熱流
体とが混じりあうことなく簡便に、かつ効率よく
熱交換されることとなり、内壁を通過した排ガス
は1000℃以下に冷却され、一方、室温乃至100℃
で導入された空気は条件にもよるが約500℃にま
で予熱されて容易に熱回収が図られる。また従来
の加熱炉では天井部の特定位置から排ガスを導出
していたので、該特定位置周辺と他の天井部など
との間には熱風流量や温度に分布を生じ、ひいて
は物品の加熱温度が炉内部位によつて不均一とな
つたり、炉壁部位によつて炉材材質を使いわける
必要が生じたり補修頻度に差を生じたりしてい
た。しかるにかかる加熱炉では広い面積にわたる
内壁の各部位からほぼ均等に排ガスを導出するの
で上述の欠点も解消され、かつ熱交換にも広い面
積が利用できるので、薄い内壁厚さで所要量の熱
回収が図れる。さらに広い面積にわたつて多数個
の排ガス流路と多数個の空気流路が相互独立して
設けられているので、これらのうちの一部の流路
が閉塞その他の損傷を起こしても全体の機能に致
命的な損害を与えない利点も有する。 Such a heating furnace using the refractory of the present invention has the following effects. In other words, in a conventional heating furnace,
For example, the heating temperature inside the furnace is about 1400℃, but at most
High-temperature exhaust gas at approximately 1300°C, which is only 100°C lower, is discharged outside the furnace with a large amount of sensible heat, resulting in a large heat loss.In order to recover some of this heat loss, it is necessary to In contrast to the inconvenience of having to install a heat exchanger that can withstand new high temperatures, in such a heating furnace, heat can be exchanged easily and efficiently without mixing the exhaust gas and the fluid to be heated. , the exhaust gas passing through the inner wall is cooled to below 1000℃, while the temperature from room temperature to 100℃
The air introduced is preheated to approximately 500℃, depending on conditions, and heat can be easily recovered. In addition, in conventional heating furnaces, exhaust gas is extracted from a specific location on the ceiling, which creates a distribution of hot air flow rate and temperature between the specific location and other ceiling locations, which in turn causes the heating temperature of the article to vary. This has resulted in unevenness depending on the location within the furnace, the need to use different furnace materials depending on the location of the furnace wall, and differences in repair frequency. However, in such a heating furnace, the exhaust gas is discharged almost equally from each part of the inner wall over a wide area, so the above-mentioned drawbacks are eliminated, and a large area can be used for heat exchange, so the required amount of heat can be recovered with a thin inner wall thickness. can be achieved. Furthermore, since multiple exhaust gas flow paths and multiple air flow paths are provided independently over a wide area, even if some of these flow paths become clogged or otherwise damaged, the overall It also has the advantage of not causing any fatal damage to functionality.
内壁は空気などの流体によつて強制冷却されて
いることとなるので、内壁の炉内側と天井側との
間にかなりの温度差が生じ、換言すれば高機能の
断面層を形成していることになり、同時にこの内
壁の平均温度も低下するので、従来の高級耐火
材・高級断熱材を厚く張りつめた天井部構造に比
べてきわめて軽量かつ簡易な天井部構造が得られ
ることとなり、ひいては内壁を構成するセリ煉瓦
８、これを支持する耐火物７，７′、さらには側
壁や架構に要求される強度も低下させられる。ま
た内壁の排ガス流路を通過した後の排ガスは温度
がかなり低下しているので、炉天井壁を構成する
炉材には高温の熱風に直接さらされる部位（例え
ば第１図における炉側壁）の炉材に比べてグレー
ドを落とした材質が採用可能となり、さらに炉材
層の厚さも従来なら天井部は側壁部より厚くする
必要があつたのに対し、本考案耐火物を用いるこ
とにより逆に薄くできる。このことはさらに従来
なら天井部は重畳した複雑なセリ構造を要したの
に対し、一層の炉材による簡易な吊天井構造や、
条件によつては単なる鉄板外皮のみの天井構造を
も可能とする。これらのことは築炉資材を節減す
るのみならず、炉の熱容量も低下させて、炉操業
における熱上げ、熱下げをも容易にする。 Since the inner wall is forcedly cooled by fluid such as air, there is a considerable temperature difference between the inner wall of the furnace and the ceiling side, in other words, a highly functional cross-sectional layer is formed. At the same time, the average temperature of this inner wall also decreases, making it possible to obtain a ceiling structure that is extremely lightweight and simple compared to the conventional ceiling structure that is thickly covered with high-grade fireproofing materials and high-grade insulation materials. The strength required for the seri bricks 8 constituting the structure, the refractories 7 and 7' that support them, and also the side walls and frame is also reduced. In addition, since the temperature of the exhaust gas after passing through the exhaust gas flow path on the inner wall has decreased considerably, the furnace material that makes up the furnace ceiling wall has areas that are directly exposed to high-temperature hot air (for example, the furnace side wall in Figure 1). It is now possible to use materials of a lower grade than the furnace material, and the thickness of the furnace material layer, which conventionally required the ceiling to be thicker than the side walls, can be reversed by using the refractory of this invention. Can be made thinner. This also means that whereas conventionally the ceiling required a complex structure with overlapping layers, a simple suspended ceiling structure with one layer of furnace material,
Depending on the conditions, it is also possible to create a ceiling structure with only a steel plate outer skin. These things not only save furnace construction materials, but also lower the heat capacity of the furnace, making it easier to raise and lower the heat during furnace operation.
しかして本考案耐火物の外形面は実質的に平面
であればよく、使用時に隣接して配置される他の
煉瓦などと係合するように小突起・小凹部を設け
たり、側面の一部を溝状として本考案耐火物同士
を隣接したときにこの溝が流路となるようにして
もよい。また、本考案でいう略直方体とは第３図
のように内側面１１を底面１２と直角より多少大
きい角度をなすようにし、あるいは第４図のよう
に内側面１１をゆるく彎曲させたような場合をも
包含する概念であつて、かかる断面を有する外形
状としてセリ受け面１３に積まれるセリ煉瓦の底
面とより滑らかに接続可能とし、もつて熱風の流
動抵抗を軽減せしめてもよい。第２図、第３図、
第４図のごとく外形状が略直五角柱状であること
は、この耐火物に鋭角部分が存在せず、したがつ
て取扱い時の破損などが起こりにくく、かつ、上
面にも煉瓦を積んでその重量によりこの耐火物を
保持固定できるなどの利点を有して好ましい。し
かし第５図ないし第７図に示すようにこの耐火物
の外形状は三角柱状、四角柱状であつてもさしつ
かえない。 However, the external surface of the refractory of the present invention only needs to be substantially flat, and small protrusions or small recesses may be provided so that it engages with other bricks placed adjacently during use, or a part of the side surface may be The refractories of the present invention may be formed into a groove shape so that when the refractories of the present invention are placed adjacent to each other, this groove becomes a flow path. Furthermore, the term "substantially rectangular parallelepiped" as used in the present invention refers to a shape in which the inner surface 11 forms an angle slightly larger than a right angle with the bottom surface 12 as shown in FIG. 3, or one in which the inner surface 11 is gently curved as shown in FIG. This concept also includes cases where the outer shape has such a cross section, and it may be possible to connect more smoothly with the bottom surface of the seri bricks stacked on the seri receiving surface 13, thereby reducing the flow resistance of hot air. Figure 2, Figure 3,
The fact that the external shape is approximately a right pentagonal prism as shown in Figure 4 is that this refractory has no sharp angles, so it is less likely to be damaged during handling, and it is also possible to stack bricks on the top surface. This is preferable because it has the advantage of being able to hold and fix the refractory due to its weight. However, as shown in FIGS. 5 to 7, the external shape of this refractory may be a triangular prism or a quadrangular prism.
この耐火物における流路の形状、大きさ、数、
流路間隔などは流路に通ずる流体の流量、この耐
火物に要求される耐熱性、強度などの諸因子を勘
案して適宜設計可能であり、一般的には一流路の
断面積は３〜60cm2、流路数は２〜20個が好まし
い。また各流路の分布については斜面に単格子状
もしくは重ね格子状に開口していてもよく、また
は底面に平行な層状もしくは第２図のように側面
に平行な層状に開口していてもよい。 The shape, size, number, and
The channel spacing can be designed as appropriate by taking into consideration various factors such as the flow rate of the fluid flowing through the channel, the heat resistance and strength required of this refractory, and generally the cross-sectional area of the channel is 3 to 3. 60 cm 2 and the number of channels is preferably 2 to 20. Regarding the distribution of the channels, they may be opened on the slope in a single lattice shape or in a stacked lattice shape, or they may be opened in layers parallel to the bottom surface or parallel to the side surfaces as shown in Fig. 2. .
本考案の耐火物には必要とされる耐熱性、断熱
性、強度などに応じてコージライト質、ムライト
質、ジルコニア質、窒化ケイ素質、炭化ケイ素
質、アルミナ質など各種の材質が採用できる。 Various materials such as cordierite, mullite, zirconia, silicon nitride, silicon carbide, and alumina can be used for the refractory of the present invention depending on the required heat resistance, heat insulation, strength, etc.
第１図は本考案実施例の耐火物を用いたトンネ
ル炉の縦断面図である。第２図は本考案実施例の
耐火物の斜視図である。第３図ないし第７図はい
ずれも本考案の異なる実施例の耐火物の側面図で
ある。
１：炉側壁、２：炉天井壁、３：架構、６，
６′：ヘツダー、７，７′：耐火物、８：セリ煉
瓦、９：内壁、１０：流路、１１：内側面、１
２：底面、１３：セリ受け面、１４：ヘツダー
面。
FIG. 1 is a longitudinal sectional view of a tunnel furnace using a refractory according to an embodiment of the present invention. FIG. 2 is a perspective view of a refractory according to an embodiment of the present invention. 3 to 7 are side views of refractories according to different embodiments of the present invention. 1: Furnace side wall, 2: Furnace ceiling wall, 3: Frame, 6,
6': Header, 7,7': Refractory, 8: Ceramic brick, 9: Inner wall, 10: Channel, 11: Inner surface, 1
2: bottom surface, 13: auction receiving surface, 14: header surface.
Claims (1)
斜面で切截した外形状の耐火物において、該一
稜を含む一面と該斜面との間に連通する複数個
の流路を設けてあることを特徴とする耐火物。 (2) 外形状が略直五角柱状である実用新案登録請
求の範囲１記載の耐火物。[Scope of Claim for Utility Model Registration] (1) In a refractory having an outer shape of a substantially rectangular parallelepiped cut with a slope that is parallel to one edge and does not include the edge, between the one surface including the edge and the slope A refractory characterized by having a plurality of channels communicating with the refractory. (2) The refractory according to claim 1 of the utility model registration, which has an approximately rectangular pentagonal prism outer shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11836082U JPS5923098U (en) | 1982-08-05 | 1982-08-05 | refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11836082U JPS5923098U (en) | 1982-08-05 | 1982-08-05 | refractory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5923098U JPS5923098U (en) | 1984-02-13 |
| JPS6236074Y2 true JPS6236074Y2 (en) | 1987-09-12 |
Family
ID=30272075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11836082U Granted JPS5923098U (en) | 1982-08-05 | 1982-08-05 | refractory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923098U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030035100A (en) * | 2001-10-30 | 2003-05-09 | 삼성코닝 주식회사 | Crown skew block for glass melting furnace |
| JP2014228266A (en) * | 2013-05-24 | 2014-12-08 | 光和精鉱株式会社 | Ceiling part self-supporting structure of fluidization roasting furnace |
-
1982
- 1982-08-05 JP JP11836082U patent/JPS5923098U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5923098U (en) | 1984-02-13 |
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