JPH0618213Y2 - Roof tile dryer - Google Patents

Roof tile dryer

Info

Publication number
JPH0618213Y2
JPH0618213Y2 JP15637388U JP15637388U JPH0618213Y2 JP H0618213 Y2 JPH0618213 Y2 JP H0618213Y2 JP 15637388 U JP15637388 U JP 15637388U JP 15637388 U JP15637388 U JP 15637388U JP H0618213 Y2 JPH0618213 Y2 JP H0618213Y2
Authority
JP
Japan
Prior art keywords
roof tile
compartment
side walls
furnace body
furnace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP15637388U
Other languages
Japanese (ja)
Other versions
JPH0277588U (en
Inventor
良一 池上
伊藤  隆
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 JP15637388U priority Critical patent/JPH0618213Y2/en
Publication of JPH0277588U publication Critical patent/JPH0277588U/ja
Application granted granted Critical
Publication of JPH0618213Y2 publication Critical patent/JPH0618213Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Drying Of Solid Materials (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は焼成前の瓦を短時間で能率良く乾燥させること
ができる瓦乾燥装置の改良に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a roof tile drying device capable of efficiently drying roof tiles before firing in a short time.

(従来の技術) 瓦の乾燥装置としては、例えば実公昭63−35337
号公報に示されるように、乾燥炉の中央に瓦移送装置を
設けるとともに、炉内の両側壁に熱風吹き出し及び吸い
込み用ファンを設け、移送される瓦に熱風を吹付けるこ
とにより瓦の表面から水分を蒸発させるようにしたもの
が知られている。
(Prior Art) As a roof tile drying device, for example, Japanese Utility Model Publication No. Sho 63-35337.
As shown in the publication, a roof tile transfer device is provided in the center of the drying furnace, and hot air blowing and suction fans are provided on both side walls of the furnace to blow hot air onto the roof tile to be transferred from the surface of the roof tile. It is known that water is evaporated.

ところが瓦の表面に高温の熱風を吹き付けると瓦の表層
部のみが乾燥して切れや割れなどが発生し易いという問
題があり、急速乾燥を行わせることができないために、
従来は水分含有率が20%の瓦を水分含有率が2%となる
まで乾燥させるのに30時間という長時間を必要とする欠
点があった。
However, when hot hot air is blown onto the surface of the roof tile, there is a problem that only the surface layer of the roof tile is dried and easily cut or cracked, so that rapid drying cannot be performed.
Conventionally, there is a drawback that it takes a long time of 30 hours to dry a roof tile having a moisture content of 20% until the moisture content becomes 2%.

(考案が解決しようとする課題) 本考案はこのような従来の欠点を解決して、瓦を表面切
れや割れを生じさせることなく従来よりもはるかに短時
間で乾燥することができる瓦乾燥装置を目的として完成
されたものである。
(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional drawbacks, and can dry a roof tile in a much shorter time than before without causing surface breakage or cracks. It was completed for the purpose of.

(課題を解決するための手段) 上記の課題を達成するためになされた本考案は中央部に
瓦移送装置を備えた炉体の内部を両側壁から内向きに突
出する仕切板によって炉の長手方向に多数の区画に分割
し、各区画の天井部に上下方向の循環気流を形成する熱
風循環装置を取り付けるとともに、ひとつ置きの区画の
両側壁に赤外線ヒーターを取り付けたことを特徴とする
ものである。
(Means for Solving the Problems) The present invention, which has been made to achieve the above object, has a furnace having a roof tile transfer device at the center thereof, and a partition plate protruding inward from both side walls of the furnace body to lengthen the furnace. It is characterized in that it is divided into a number of sections in each direction, and a hot air circulation device that forms a circulating air flow in the vertical direction is attached to the ceiling of each section, and infrared heaters are attached to both side walls of every other section. is there.

(実施例) 次に本考案を図示の実施例によって詳細に説明する。(Embodiment) Next, the present invention will be described in detail with reference to the illustrated embodiment.

図中(1)はトンネル状の炉体であり、(2)は炉体(1)の中
央部に設けられた瓦移送装置である。実施例の瓦移送装
置(2)はレール(3)と台車(4)とを含み、水分が20%程度
の瓦を台車(4)上に多段に積載して炉体(1)の入口から出
口に向かって移送する構造のものであるが、瓦移送装置
(2)の構造はコンベア式とするなど適宜変更が可能であ
る。
In the figure, (1) is a tunnel-shaped furnace body, and (2) is a roof tile transfer device provided at the center of the furnace body (1). The roof tile transfer device (2) of the embodiment includes a rail (3) and a carriage (4), and tiles having a water content of about 20% are loaded in multiple stages on the carriage (4) and then from the entrance of the furnace body (1). The roof tile transfer device has a structure that transfers it toward the exit.
The structure of (2) can be appropriately changed, such as a conveyor type.

この炉体(1)の内部は、両側壁(5)から内向きに突出する
仕切板(6)によって炉の長手方向に多数の区画に分割さ
れている。(7)は各区画の天井部に取り付けられた熱風
循環装置であって、ケーシング(8)の内部に設けられた
ファン(9)により各区画の内部に図示のような上下方向
の循環気流を形成する。またひとつ置きの区画の両側壁
(5)には赤外線ヒーター(10)が多数個取り付けられてお
り、その区画の内部の温度が70℃程度となるよう加熱し
ている。しかし赤外線ヒーター(10)が取り付けられてい
ない区画内の温度は40℃前後に保たれている。(1)は炉
体(1)の天井部に適宜設けられた排気口であり、図示の
実施例では各区画の循環部分に設けられているが、必ず
しもこれに限定されるものではない。
The interior of the furnace body (1) is divided into a number of compartments in the longitudinal direction of the furnace by partition plates (6) projecting inwardly from both side walls (5). (7) is a hot air circulation device attached to the ceiling of each compartment, and a fan (9) provided inside the casing (8) creates a vertical circulating air flow inside each compartment as shown in the figure. Form. Also, both side walls of every other compartment
A large number of infrared heaters (10) are attached to (5), and they are heated so that the temperature inside the compartment is about 70 ° C. However, the temperature inside the compartment where the infrared heater (10) is not installed is maintained at around 40 ° C. Reference numeral (1) is an exhaust port appropriately provided in the ceiling portion of the furnace body (1), and in the illustrated embodiment, it is provided in the circulation portion of each section, but it is not necessarily limited to this.

なお各区画における循環気流の下降流と上昇流とを明確
に分離するため、炉体内に第3図の隔壁(12)を設けても
よく、この場合には赤外線ヒーター(10)は隔壁(12)の内
側に配置されている。
In order to clearly separate the descending flow and the ascending flow of the circulating air flow in each section, a partition wall (12) shown in Fig. 3 may be provided in the furnace body. In this case, the infrared heater (10) does not have the partition wall (12). ) Is placed inside.

(作用) このように構成された本考案の瓦乾燥装置は、瓦移送装
置(2)の台車(4)に瓦を積載し、炉体(1)の内部を移動さ
せつつ赤外線ヒータ(10)からの輻射と熱風循環装置(7)
による対流とにより乾燥を行わせるものであることは従
来のものと同様である。しかし本考案においては炉体
(1)の内部がその両側壁(5)から内向きに突出する仕切り
板(6)によって多数の区画に分割され、そのひとつ置き
の区画に赤外線ヒータ(10)が取り付けられた高温区画と
されているため、瓦は低温区画と高温区画を交互に連続
して通過する。この高温区画を通る際には赤外線ヒータ
(10)の輻射を受けるとともに循環する約70℃の熱風に曝
され、瓦表面は急速に温度が上がり乾燥される。しか
し、内部は昇温が遅れるため表面と内部の温度差が大と
なり、水分が表面に向って拡散していく。ところが、あ
る程度表面の乾燥が進むと表面に境界層を形成してしま
うので、逆に水分の揮散を妨げてしまう。ついで、瓦が
これに隣接する低温区画に入ったときには、約40℃の風
が瓦表面に吹き付け、表面の境界層を取除いてしまうの
で瓦の内部の水分拡散作用が促進されて表層への水分移
動が行われ、表面に移動した水分は次の高温区画におい
て急速に瓦の表面から除去される。このように本考案に
よれば、瓦表面からの強力な水分除去作用と、瓦内部の
水分拡散作用とが交互に繰り返されることとなるので、
一定温度で連続的に乾燥を行っていた従来の装置に比較
して、瓦の内部まで乾燥させるに要する時間ははるかに
短くなる。しかも本考案によれば、高温区画で表面の温
度上昇及び乾燥、低温区画で瓦内部の温度分布の均一化
及び水分の拡散が交互に繰返されるので内部が多量の水
分を含んだ状態で瓦表面のみが急速に乾燥されることが
ないために、乾燥中に瓦の表面に割れや切れが発生する
ことがない。
(Operation) In the roof tile drying device of the present invention thus constructed, the roof tiles are loaded on the carriage (4) of the roof tile transfer device (2), and the infrared heater (10) is moved while moving inside the furnace body (1). Radiation and hot air circulation equipment (7)
It is the same as the conventional one that the drying is performed by the convection due to. However, in the present invention, the furnace body
The inside of (1) is divided into a number of compartments by partition plates (6) that project inwardly from both side walls (5), and every other compartment is a high-temperature compartment with an infrared heater (10) attached. Therefore, the roof tiles pass through the low temperature section and the high temperature section alternately and continuously. Infrared heater when passing through this high temperature section
The roof tile surface rises in temperature rapidly and is dried by being exposed to the circulating hot air of about 70 ° C while receiving the radiation of (10). However, since the temperature rise in the interior is delayed, the temperature difference between the surface and the interior becomes large, and moisture diffuses toward the surface. However, when the surface is dried to some extent, a boundary layer is formed on the surface, which conversely hinders the evaporation of water. Then, when the roof tile enters the low temperature zone adjacent to it, a wind of about 40 ° C blows on the roof tile surface and removes the boundary layer of the roof tile, so that the water diffusion action inside the roof tile is promoted and Moisture transfer takes place, and the water that has moved to the surface is rapidly removed from the surface of the roof tile in the next high-temperature section. As described above, according to the present invention, the strong water removal action from the roof tile surface and the moisture diffusion action inside the roof tile are alternately repeated.
The time required to dry the inside of the roof tile is much shorter than that of a conventional apparatus that continuously performs drying at a constant temperature. Moreover, according to the present invention, the temperature rise and drying of the surface in the high temperature section, the uniform temperature distribution inside the roof tile and the diffusion of water are repeated alternately in the low temperature compartment, so that the roof surface is covered with a large amount of water inside. Only the chisel is not dried rapidly, so that the surface of the tile does not crack or break during the drying.

この結果、水分含有率が20%の瓦を水分含有率が2%と
なるまで乾燥させるに要する時間は従来の30時間から3
時間へと大幅に短縮することが可能となった。
As a result, the time required to dry roof tiles with a water content of 20% until the water content of 2% is 3 hours from the conventional 30 hours.
It has become possible to reduce the time significantly.

なお、多量の水分が蒸発する前半部では排気口(11)の開
度を大きくして水蒸気の排出を促し、蒸発量が減少する
後半部では開度を小さくして熱の放散を防ぎ、熱効率の
向上を図ることが好ましい。また赤外線ヒータ(10)とし
てニクロム線等の抵抗発熱体をセラミック板の内部に埋
設したものを使用すれば、湿気に強いうえに熱容量が大
で冷めにくく、設定温度に対する温度変動幅が小さくな
って均一な乾燥を行わせるに好都合である。
In addition, in the first half where a large amount of water evaporates, the opening of the exhaust port (11) is increased to promote the discharge of water vapor, and in the latter half where the evaporation amount decreases, the opening is reduced to prevent the dissipation of heat and improve the thermal efficiency. It is preferable to improve. If an infrared heater (10) with a resistance heating element such as a nichrome wire embedded inside a ceramic plate is used, it is resistant to moisture and has a large heat capacity, making it difficult to cool and reducing the temperature fluctuation range against the set temperature. It is convenient to carry out uniform drying.

(考案の効果) 本考案は以上に説明したように、表面に割れや切れを生
じさせることなく瓦を従来よりもはるかに短時間で乾燥
させることができるものであり、瓦製造工程の合理化に
効果的なものである。よって本考案は従来の欠点を解決
した瓦乾燥装置として、その実用的価値は極めて大きい
ものがある。
(Effect of the Invention) As described above, the present invention can dry the roof tile in a much shorter time than the conventional one without causing cracks or breaks on the surface, and can streamline the roof tile manufacturing process. It is effective. Therefore, the present invention has an extremely large practical value as a roof tile drying device that solves the conventional drawbacks.

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

第1図は本考案の実施例を示す水平断面図、第2図はそ
の垂直断面図、第3図は他の実施例を示す垂直断面図で
ある。 (1):炉体、(2):瓦移送装置、(5):両側壁、(6):仕切
板、(7):熱風循環装置、(10):赤外線ヒーター。
FIG. 1 is a horizontal sectional view showing an embodiment of the present invention, FIG. 2 is a vertical sectional view thereof, and FIG. 3 is a vertical sectional view showing another embodiment. (1): furnace body, (2): roof tile transfer device, (5): both side walls, (6): partition plate, (7): hot air circulation device, (10): infrared heater.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】中央部に瓦移送装置(2)を備えた炉体(1)の
内部を両側壁(5)から内向きに突出する仕切板(6)によっ
て炉の長手方向に多数の区画に分割し、各区画の天井部
に上下方向の循環気流を形成する熱風循環装置(7)を取
り付けるとともに、ひとつ置きの区画の両側壁(5)に赤
外線ヒーター(10)を取り付けたことを特徴とする瓦乾燥
装置。
1. A large number of compartments in the longitudinal direction of the furnace by partition plates (6) projecting inwardly from both side walls (5) inside the furnace body (1) equipped with a roof tile transfer device (2) In addition to installing a hot air circulation device (7) that forms a circulating air flow in the vertical direction on the ceiling of each compartment, an infrared heater (10) is installed on both side walls (5) of every other compartment. Roof tile dryer.
JP15637388U 1988-11-30 1988-11-30 Roof tile dryer Expired - Lifetime JPH0618213Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15637388U JPH0618213Y2 (en) 1988-11-30 1988-11-30 Roof tile dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15637388U JPH0618213Y2 (en) 1988-11-30 1988-11-30 Roof tile dryer

Publications (2)

Publication Number Publication Date
JPH0277588U JPH0277588U (en) 1990-06-14
JPH0618213Y2 true JPH0618213Y2 (en) 1994-05-11

Family

ID=31434856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15637388U Expired - Lifetime JPH0618213Y2 (en) 1988-11-30 1988-11-30 Roof tile dryer

Country Status (1)

Country Link
JP (1) JPH0618213Y2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2524947Y2 (en) * 1991-06-21 1997-02-05 日本碍子株式会社 Infrared drying oven
JP5301186B2 (en) * 2008-03-26 2013-09-25 光洋サーモシステム株式会社 Heating device
JP6200924B2 (en) * 2015-09-07 2017-09-20 トーホーエンジニアリング株式会社 Hot air circulation furnace
JP6824772B2 (en) * 2017-02-17 2021-02-03 日本碍子株式会社 Drying device and manufacturing method of dried body

Also Published As

Publication number Publication date
JPH0277588U (en) 1990-06-14

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