JPH0814770A - Shelf assembly of baking bogie - Google Patents

Shelf assembly of baking bogie

Info

Publication number
JPH0814770A
JPH0814770A JP14789994A JP14789994A JPH0814770A JP H0814770 A JPH0814770 A JP H0814770A JP 14789994 A JP14789994 A JP 14789994A JP 14789994 A JP14789994 A JP 14789994A JP H0814770 A JPH0814770 A JP H0814770A
Authority
JP
Japan
Prior art keywords
shelf
firing
legs
beams
car top
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.)
Pending
Application number
JP14789994A
Other languages
Japanese (ja)
Inventor
Koji Nishida
浩治 西田
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
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP14789994A priority Critical patent/JPH0814770A/en
Publication of JPH0814770A publication Critical patent/JPH0814770A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To provide a shelf assembly of a baking bogie in which a total weight of the shelf legs is reduced, a thermal loss caused by brought-out heat calorie is reduced and at the same time an irregular baking can be reduced. CONSTITUTION:Pairs of beams 4, 4 made of a Si-SiC baked material are arranged between shelf legs 2 and 3. A span between the shelf legs 2 and 3 can be set to three to five times of that of the prior art. It is preferable that in order to accommodate for a thermal expansion of the beams 4, the base part of the shelf leg 2 supporting one end of the beam 4 is placed on a car top 1. In addition, it is preferable that wall bricks 5 are fitted to both ends of the beam 4 so as to prevent the tiles from being fallen and further to prevent the beam 4 from being displaced in a width direction.

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、瓦などの陶磁器類の焼
成に使用される焼成用台車の棚組に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelf assembly for a trolley for firing used for firing ceramics such as roof tiles.

【0002】[0002]

【従来の技術】従来一般的に使用されてきた焼成用台車
の棚組は、図5に示すように焼成用台車のカートップ11
に多数の棚脚12を一定間隔で立て、それらの棚脚12、12
間にそれぞれ棚板13を載せた構造となっている。棚板13
としては曲げ強度が数10〜200kg/cm2 程度のアルミナ質
耐火物や、ムライト質耐火物、粘土質結合の炭化珪素等
が使用されており、その上面に瓦を載せたときの棚板13
の撓み量や曲げ応力を考慮して、棚脚12、12のスパン及
び棚板13の長さは500 〜600mm 程度とするのが普通であ
る。また、棚板13の長さがこの程度の場合には熱膨脹量
も僅かであるため、棚脚12の基部はカートップ11に埋設
した構造となっている。
2. Description of the Related Art As shown in FIG. 5, a shelf assembly of a firing truck that has been generally used in the past has a car top 11 for firing trucks.
Stand a large number of shelf legs 12 at regular intervals,
The structure is such that a shelf plate 13 is placed between each. Shelf board 13
As and bending strength of several 10 to 200 / cm 2 of about alumina refractories, mullite refractories, silicon carbide and the like are used argillaceous binding, shelf board 13 when loaded with tiles on its upper surface
In consideration of the amount of bending and bending stress, the span of the shelf legs 12 and 12 and the length of the shelf plate 13 are usually about 500 to 600 mm. Also, when the length of the shelf plate 13 is about this amount, the amount of thermal expansion is also small, so that the base of the shelf leg 12 is embedded in the car top 11.

【0003】ところが上記したような従来の焼成用台車
の棚組においては、焼成用台車の幅が3000mmである場合
には図5に示すように幅方向に6本程度の棚脚12を設け
る必要があり、図6に示すように長手方向に9列に棚板
13を配置した場合には、台車1両あたり54本という多数
の棚脚12を配置する必要がある。また、これに伴う多数
の棚板を配置する必要がある。このために、これらの棚
脚12等の直接製品とならない耐火物の総重量および蓄熱
量も非常に大きくなり、瓦等の製品の製造コストに占め
る比率の高い燃費に直接関係する焼成炉からの持ち出し
熱量による熱損失は無視できない大きさとなっていた。
However, in the case of the conventional rack for firing trucks as described above, when the width of the firing truck is 3000 mm, it is necessary to provide about six shelf legs 12 in the width direction as shown in FIG. There are 9 shelves in the longitudinal direction as shown in FIG.
When 13 are arranged, it is necessary to arrange a large number of shelf legs 12 of 54 per car. Moreover, it is necessary to arrange many shelf boards accompanying this. For this reason, the total weight and heat storage amount of refractories that are not directly manufactured products such as these shelf legs 12 become very large, and they are directly related to fuel consumption, which is a high ratio of the manufacturing cost of products such as roof tiles, from the firing furnace. The heat loss due to the amount of heat taken out was so large that it could not be ignored.

【0004】また従来の焼成用台車の棚組では、平板状
の棚板13の上に瓦を載せて焼成を行うため、棚板13によ
り上下方向の焼成用ガスの流れが阻害され、瓦の下部に
焼きむらが生じることがあるという問題もあった。
Further, in the conventional rack of a truck for firing, since the tiles are placed on the flat shelf plate 13 for firing, the shelf plate 13 hinders the flow of the firing gas in the vertical direction, and There is also a problem that uneven burning may occur at the bottom.

【0005】[0005]

【発明が解決しようとする課題】本発明は上記した従来
の問題点を解決して、棚脚および棚脚の総重量を軽減す
ることにより持ち出し熱量による熱損失を減少させると
ともに、焼きむらの減少を図ることもできる新規な焼成
用台車の棚組を提供するためになされたものである。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and reduces the total weight of the shelf legs and the shelf legs to reduce the heat loss due to the amount of heat taken out and to reduce the uneven baking. The present invention was made to provide a new shelf assembly for a trolley for firing which can also be achieved.

【0006】[0006]

【課題を解決するための手段】上記の課題を解決するた
めになされた本発明の焼成用台車の棚組は、カートップ
に立設された棚脚間に、Si-SiC焼結体からなる対をなす
ビームを架設したことを特徴とするものである。なお、
ビームの一端を支持する棚脚の基部をカートップ内に埋
設し、他端を支持する棚脚の基部をカートップ上へ載せ
た構造ととすることが好ましい。さらに、対をなすビー
ムの両端部に、ビーム挿通用の貫通孔を下部に備えた壁
れんがを挿入することが好ましい。
Means for Solving the Problems A shelf assembly of a trolley for firing of the present invention, which has been made to solve the above problems, is made of a Si-SiC sintered body between shelf legs erected on a car top. It is characterized by having a pair of beams installed. In addition,
It is preferable that the base portion of the shelf leg that supports one end of the beam is embedded in the car top, and the base portion of the shelf leg that supports the other end is placed on the car top. Furthermore, it is preferable to insert a wall brick having a through hole for inserting a beam in the lower portion at both ends of the pair of beams.

【0007】[0007]

【作用】本発明によれば、従来の平板の棚板に替えて高
温における曲げ強度が2500kg/cm2と非常に大きく、かつ
熱膨脹の小さいSi-SiC焼結体からなるビームを対にして
架設し、その上に瓦を載せて焼成を行う。このようにビ
ームの強度が従来品に比較して10倍以上も大きいため、
棚脚のスパンを例えば1500〜3000mmと従来の2〜5倍に
大きくすることができる。従って台車1両あたりの棚脚
数を従来の半分以下とすることができ、また、従来の平
板の棚板に代わり比重の軽いSi-SiC製のビームを用いる
ため、棚脚及び棚板相当のビームの総重量および持ち出
し熱量を大幅に低下させることができる。しかも本発明
では対をなすビームの上に瓦を載せて焼成するため、従
来の棚板を使用したものに比較してガスのまわりが良
く、焼成むらを生ずることがない。
According to the present invention, a conventional flat plate shelf is replaced with a beam made of a Si-SiC sintered body having a very high bending strength at a high temperature of 2500 kg / cm 2 and a small thermal expansion. Then, the roof tiles are placed on it and firing is performed. In this way, the beam intensity is more than 10 times greater than the conventional product,
The span of the shelf legs can be increased to, for example, 1500 to 3000 mm, which is 2 to 5 times larger than the conventional one. Therefore, the number of shelf legs per car can be reduced to less than half that of the conventional one, and since Si-SiC beams with a light specific gravity are used instead of the conventional flat shelf plate, the number of shelf legs and shelf plates is the same. The total weight of the beam and the amount of heat taken out can be significantly reduced. Moreover, in the present invention, since the roof tile is placed on the pair of beams and fired, the gas is better around and the firing unevenness does not occur, as compared with the conventional shelf plate.

【0008】また請求項2のように、ビームの一端を支
持する棚脚の基部をカートップ内に埋設し、他端を支持
する棚脚の基部をカートップ上へ載せた構造とすれば、
棚脚がカートップ上でスライドすることにより高温焼成
時におけるビームの熱膨脹を吸収することができる。さ
らに請求項3のようにビームの両端部に壁れんがを挿入
すれば、瓦の倒れを防止することができるとともに、ビ
ーム相互の間隔を一定に保持することができる。
According to a second aspect of the present invention, the base of the shelf leg supporting one end of the beam is embedded in the car top, and the base of the shelf leg supporting the other end is placed on the car top.
The thermal expansion of the beam during high temperature firing can be absorbed by sliding the shelf legs on the car top. Furthermore, by inserting wall bricks at both ends of the beam as in claim 3, it is possible to prevent the roof tiles from collapsing and also to keep the distance between the beams constant.

【0009】[0009]

【実施例】以下に本発明を図示の実施例によって更に詳
細に説明する。図1は本発明の実施例を示すカートップ
より上部の断面図、図2はその平面図である。図1にお
いて1は焼成用台車のカートップ、2、3はカートップ
1上に立設された棚脚、4はこれらの棚脚2、3間に水
平に架設されたSi-SiC焼結体からなる対をなすビームで
ある。
The present invention will be described below in more detail with reference to the illustrated embodiments. FIG. 1 is a sectional view of an upper portion of a car top showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. In FIG. 1, 1 is a car top of a firing truck, 2 and 3 are shelf legs that are erected on the car top 1, and 4 is a Si-SiC sintered body that is horizontally installed between these shelf legs 2 and 3. Is a pair of beams.

【0010】Si-SiC焼結体は、SiC と25重量%以下のSi
とからなる焼結体であり、Si粉末とC 粉末をSiC 粉末と
ともに混合して押し出し成形し、1300〜1400℃で焼成す
る方法によって製造することができる。またカーボンや
カーボンファイバによってビームを成形し、Siと反応さ
せてSi-SiC焼結体とすることもできる。さらにこのほ
か、再結晶炭化珪素にSiを含浸させる方法によっても製
造することができる。Si-SiC焼結体のより詳しい製法
は、本出願人の出願に係る特開平6-1660号公報に記載さ
れている。
The Si-SiC sintered body is composed of SiC and 25% by weight or less of Si.
It can be manufactured by a method in which Si powder and C powder are mixed with SiC powder, extrusion molded, and fired at 1300 to 1400 ° C. It is also possible to form a beam from carbon or carbon fiber and react it with Si to obtain a Si-SiC sintered body. In addition to this, it can be manufactured by a method of impregnating recrystallized silicon carbide with Si. A more detailed manufacturing method of the Si-SiC sintered body is described in Japanese Patent Application Laid-Open No. 6-1660 filed by the present applicant.

【0011】このSi-SiC焼結体からなるビーム4は、耐
熱性や耐熱衝撃性に優れるとともに、前記したように特
に常温から1300℃に於ける熱間強度までがほとんど変化
せず、2500kg/cm2という非常に大きい曲げ強度を有して
いる。このため、棚脚2、3間のスパンを従来の500 〜
600mm から1500〜3000mmと非常に大きくしても、強度上
の問題は生じない。実施例では、3000mm幅の焼成用台車
に対して棚脚2、3間のスパンを1500mmとしたので、幅
方向に3本の棚脚2、3を立設すればよい。また図2に
示すように、従来と同様に台車の長手方向に9列にビー
ム4を配置した場合、台車1両あたりの棚脚数を27本と
従来の半分にすることができる。
The beam 4 made of this Si-SiC sintered body has excellent heat resistance and thermal shock resistance, and as described above, there is almost no change from room temperature to hot strength at 1300 ° C., and 2500 kg / It has a very large bending strength of cm 2 . Therefore, the span between the shelf legs 2 and 3 is 500
Even if it is very large from 600 mm to 1500 to 3000 mm, there is no problem in strength. In the embodiment, since the span between the shelf legs 2 and 3 is 1500 mm with respect to the trolley for firing of 3000 mm width, three shelf legs 2 and 3 may be erected in the width direction. Further, as shown in FIG. 2, when the beams 4 are arranged in 9 rows in the longitudinal direction of the bogie as in the conventional case, the number of shelf legs per one bogie can be 27, which is half of the conventional case.

【0012】このように本発明では棚脚2、3間のスパ
ンを拡大し、従ってビーム4の長さも実施例の場合には
従来の3倍となっているので、熱膨脹率の小さいSi-SiC
焼結体を用いても、焼成時における全体の膨脹長さは大
きくなる。そこで図1、図3に示すように、ビーム4の
一端を支持する棚脚3を一体型としてその基部をカート
ップ1内に埋設し、またビーム4の他端を支持する棚脚
2はその基部をカートップ1上へ載せた構造とした。棚
脚2、3をこのような構造とすれば、ビーム4に大きい
熱膨脹が生じた場合にも棚脚2がカートップ1上でスラ
イドし、熱膨脹を吸収することができる利点がある。
As described above, according to the present invention, the span between the shelf legs 2 and 3 is expanded, and therefore the length of the beam 4 is three times as long as that of the conventional example, so that the thermal expansion coefficient of Si-SiC is small.
Even if a sintered body is used, the total expansion length during firing becomes large. Therefore, as shown in FIGS. 1 and 3, the shelf leg 3 that supports one end of the beam 4 is integrally formed, and its base is embedded in the car top 1, and the shelf leg 2 that supports the other end of the beam 4 is The base was placed on the car top 1. If the shelf legs 2 and 3 have such a structure, there is an advantage that the shelf legs 2 can slide on the car top 1 and absorb the thermal expansion even when a large thermal expansion occurs in the beam 4.

【0013】このような対をなすビーム4の上部に瓦を
載せて焼成が行われるが、ビーム4の両端部に図3、図
4に示すような壁れんが5を挿入して瓦の倒れを防止す
ることが好ましい。この壁れんが5の材質はセラミック
であればよいが、強度、軽さ、熱容量の点からビームと
同じSi-SiCであることが望ましい。壁れんが5の下部に
はビーム挿通用の貫通孔6が形成されており、ビーム4
の両端部をこれらの貫通孔6、6に挿入する。これによ
り、壁れんが5は垂直に支持されて瓦の倒れを防止する
ことができると同時に、対をなすビーム4、4の相互の
間隔を一定に保つこともできる。従って瓦を安定して支
持することができる効果がある。
The roof tile is placed on the upper part of the pair of beams 4 to be fired. The wall bricks 5 shown in FIGS. 3 and 4 are inserted at both ends of the beam 4 to prevent the roof tile from collapsing. It is preferable to prevent it. The material of the wall brick 5 may be ceramic, but from the viewpoint of strength, lightness and heat capacity, it is desirable to use Si-SiC, which is the same as the beam. A through hole 6 for inserting a beam is formed in the lower part of the wall brick 5, and the beam 4
Both end portions of are inserted into these through holes 6, 6. As a result, the wall brick 5 is vertically supported to prevent the tile from collapsing, and at the same time, the mutual distance between the pair of beams 4 and 4 can be kept constant. Therefore, there is an effect that the roof tile can be stably supported.

【0014】[0014]

【発明の効果】以上に説明したように、本発明の焼成用
台車の棚組によれば、従来の棚板に替えて熱間強度の大
きいSi-SiC焼結体からなるビームを用いたので、棚脚の
スパンを大幅に拡大することができる。従って棚脚の数
を減少できるので、焼成用台車1両あたりの棚脚の総重
量を軽減し、持ち出し熱量による熱損失を減少させるこ
とができる。また本発明の焼成用台車の棚組によれば、
瓦の支持体として従来の棚板に替えてビームを使用した
ので、焼成用ガスのまわりがよく、焼きむらの減少を図
ることができる。
As described above, according to the shelf assembly of the truck for firing of the present invention, the beam made of the Si-SiC sintered body having a large hot strength is used instead of the conventional shelf plate. , The span of the shelf legs can be greatly expanded. Therefore, since the number of shelf legs can be reduced, it is possible to reduce the total weight of the shelf legs per one car for firing and to reduce the heat loss due to the amount of heat taken out. Further, according to the shelf assembly of the truck for firing of the present invention,
Since the beam is used instead of the conventional shelf plate as the support for the roof tile, the surrounding of the firing gas is good, and the uneven burning can be reduced.

【0015】更に実施例のようにビームの一端を支持す
る棚脚の基部をカートップ上へ載せた構造とすれば、ビ
ームの熱膨脹を吸収することができる。さらに実施例の
ような壁れんがを使用すれば、瓦の倒れを防止するとと
もに、ビームの相互の間隔を一定に保つことができる効
果を得ることもできる。
Further, if the base of the shelf leg supporting one end of the beam is placed on the car top as in the embodiment, the thermal expansion of the beam can be absorbed. Further, by using the wall brick as in the embodiment, it is possible to obtain the effect of preventing the roof tiles from collapsing and keeping the distance between the beams constant.

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

【図1】本発明の実施例を示すカートップより上部の断
面図である。
FIG. 1 is a sectional view of an upper portion of a car top showing an embodiment of the present invention.

【図2】図1の平面図である。FIG. 2 is a plan view of FIG.

【図3】実施例の拡大断面図である。FIG. 3 is an enlarged cross-sectional view of an example.

【図4】実施例の壁れんがを示す斜視図である。FIG. 4 is a perspective view showing a wall brick according to an embodiment.

【図5】従来例を示すカートップより上部の断面図であ
る。
FIG. 5 is a sectional view of an upper portion of a car top showing a conventional example.

【図6】図5の平面図である。FIG. 6 is a plan view of FIG.

【符号の説明】[Explanation of symbols]

1 カートップ、2 棚脚、3 棚脚、4 Si-SiC焼結
体からなるビーム、5壁れんが、6 貫通孔
1 cartop, 2 shelf legs, 3 shelf legs, 4 Si-SiC sintered beam, 5 wall bricks, 6 through holes

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 カートップに立設された棚脚間に、Si-S
iC焼結体からなる対をなすビームを架設したことを特徴
とする焼成用台車の棚組。
1. Si-S is provided between shelf legs erected on the cartup.
A shelf assembly for a trolley for firing, which is constructed by installing a pair of beams made of an iC sintered body.
【請求項2】 ビームの一端を支持する棚脚の基部をカ
ートップ内に埋設し、他端を支持する棚脚の基部をカー
トップ上へ載せた構造としたことを特徴とする請求項1
に記載の焼成用台車の棚組。
2. A structure in which a base of a shelf leg that supports one end of a beam is embedded in a car top, and a base of a shelf leg that supports the other end is placed on the car top.
A rack assembly for a trolley for firing described in.
【請求項3】 対をなすビームの両端部に、ビーム挿通
用の貫通孔を下部に備えた壁れんがを挿入したことを特
徴とする請求項1または請求項2に記載の焼成用台車の
棚組。
3. A shelf for a firing truck according to claim 1, wherein a wall brick having a through hole for inserting a beam at a lower portion is inserted into both ends of a pair of beams. set.
JP14789994A 1994-06-29 1994-06-29 Shelf assembly of baking bogie Pending JPH0814770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14789994A JPH0814770A (en) 1994-06-29 1994-06-29 Shelf assembly of baking bogie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14789994A JPH0814770A (en) 1994-06-29 1994-06-29 Shelf assembly of baking bogie

Publications (1)

Publication Number Publication Date
JPH0814770A true JPH0814770A (en) 1996-01-19

Family

ID=15440664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14789994A Pending JPH0814770A (en) 1994-06-29 1994-06-29 Shelf assembly of baking bogie

Country Status (1)

Country Link
JP (1) JPH0814770A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007218479A (en) * 2006-02-15 2007-08-30 Ngk Insulators Ltd Shelf assembly device for baking

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007218479A (en) * 2006-02-15 2007-08-30 Ngk Insulators Ltd Shelf assembly device for baking

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