JPS6234232Y2 - - Google Patents
Info
- Publication number
- JPS6234232Y2 JPS6234232Y2 JP9261483U JP9261483U JPS6234232Y2 JP S6234232 Y2 JPS6234232 Y2 JP S6234232Y2 JP 9261483 U JP9261483 U JP 9261483U JP 9261483 U JP9261483 U JP 9261483U JP S6234232 Y2 JPS6234232 Y2 JP S6234232Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- drying oven
- circulation
- supply pipe
- product
- 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
- 238000001035 drying Methods 0.000 claims description 38
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000000034 method Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
- Tunnel Furnaces (AREA)
Description
【考案の詳細な説明】
本考案は、熱風循環型乾燥炉の改良に関し、特
に、鋼板、樹脂等からなる製品の洗浄後における
乾燥に適した熱風循環型乾燥炉に係るものであ
る。[Detailed Description of the Invention] The present invention relates to an improvement of a hot air circulation type drying oven, and particularly relates to a hot air circulation type drying oven suitable for drying products made of steel plates, resins, etc. after washing.
従来、鋼板、樹脂等から成形された製品の後工
程として塗料、接着剤等の塗布を実施する場合、
その表面に付着する油脂分、埃等の異物除去とし
て、水，蒸気等による洗浄処理が一般に行なわれ
ている。そして、その洗浄処理後においては、製
品表面に水滴が残り、後に塗布される塗料，接着
剤等の密着不良が発生することから、水滴の除去
が行なわれている。その水滴除去方法としては、
(1)製品を熱風が循環する乾燥炉内に搬入して水滴
を蒸発させる加熱乾燥方法、(2)製品表面に圧縮空
気を吹付け水滴を吹き飛ばす吹付け乾燥方法が実
施されている。 Conventionally, when applying paints, adhesives, etc. as a post-process to products molded from steel plates, resins, etc.
In order to remove foreign substances such as oils and fats and dust adhering to the surface, cleaning treatment using water, steam, etc. is generally performed. After the cleaning process, water droplets remain on the surface of the product and cause poor adhesion of paints, adhesives, etc. applied later, so water droplets are removed. The water droplet removal method is as follows:
(1) A heating drying method in which the product is transported into a drying oven where hot air circulates to evaporate water droplets, and (2) a spray drying method in which compressed air is sprayed onto the product surface to blow away the water droplets.
しかしながら、前者の加熱乾燥方法は、水滴を
蒸発させるために、高温の熱風と長時間の乾燥が
必要であり、特に樹脂製品の場合には、熱による
変形等の不良を発生する不具合がある。また、後
者の吹付け乾燥方法では、製品の形状が複雑で、
製品上のいたる所に水滴がある場合又は異形の製
品を同一ラインで水滴除去する場合には、圧縮空
気を吹き付ける方向が問題となり、吹き付け方向
を定めるのが困難で、水滴を完全に除去すること
ができない不具合がある。 However, the former heating drying method requires high-temperature hot air and long-time drying in order to evaporate water droplets, and particularly in the case of resin products, there is a problem that defects such as deformation due to heat occur. In addition, with the latter method of spray drying, the shape of the product is complicated,
When there are water droplets everywhere on the product or when removing water droplets from irregularly shaped products in the same line, the direction in which the compressed air is sprayed becomes a problem, and it is difficult to determine the direction of spraying, making it difficult to completely remove the water droplets. There is a problem in which it is not possible to
本考案は、上記の不具合を解消するためになさ
れたもので、その目的は乾燥炉内に配設されてい
る圧縮空気の吹付け機の噴射口にフレキシブルチ
ユーブを設け、洗浄処理後に製品表面上に残る水
滴を、短時間に、しかも完全に除去することがで
きる熱風循環型乾燥炉を提供することにある。 This invention was devised to solve the above-mentioned problems, and its purpose is to install a flexible tube at the injection port of the compressed air blower installed in the drying oven, so that the surface of the product can be removed after cleaning. To provide a hot air circulation type drying oven capable of completely removing water droplets remaining in a drying oven in a short period of time.
本考案の上記目的は、両端開口部にエアカーテ
ン装置が設けられ、上部に空気供給ブロワー、燃
焼バーナ及び循環フアン等からなる加熱装置が配
設されている乾燥炉であつて、この乾燥炉の炉壁
との間に一定の間隔を有して複数個の噴出口が開
設されている仕切板を配設し、この仕切板と炉壁
との間の間隔に前記加熱装置に通ずる循環ダクト
を接続せしめ、前記仕切板の前方に圧縮空気供給
源に通ずる供給管を配設し、この供給管に複数個
の噴射ノズルを設けると共に、この噴射ノズルの
先端に軟質のフレキシブルチユーブを取り付けた
ことを特徴とする熱風循環型乾燥炉によつて達成
される。 The above-mentioned object of the present invention is to provide a drying oven, which is equipped with an air curtain device at both end openings and a heating device consisting of an air supply blower, a combustion burner, a circulation fan, etc. at the top. A partition plate having a plurality of jet ports is provided at a certain interval between the partition plate and the furnace wall, and a circulation duct leading to the heating device is installed in the gap between the partition plate and the furnace wall. A supply pipe leading to a compressed air supply source is arranged in front of the partition plate, a plurality of injection nozzles are provided in this supply pipe, and a soft flexible tube is attached to the tip of the injection nozzle. This is achieved by the characteristic hot air circulation type drying oven.
以下、本考案の一実施例を添付図面に従つて詳
細に説明する。 Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.
第１図は本考案に係る熱風循環型乾燥炉の側面
図、第２図は第１図の−線に沿つて切断した
正面図を示す。第１図および第２図において、１
はトンネル状に形成され、その両端が開口してい
る乾燥炉であつて、この乾燥炉１の両端開口部に
はエアカーテン発生装置２，２ａがそれぞれ設け
られている。このエアカーテン発生装置２，２ａ
は、両端が乾燥炉１の上端内部に開口する循環ダ
クト３，３ａと、この循環ダクト３，３ａの途中
に設けられている循環フアン４，４ａとからなつ
ている。そして、このエアカーテン発生装置２，
２ａから吹き出されるエアカーテンによつて、乾
燥炉１の両端開口部が閉塞されるようになつてい
る。 FIG. 1 is a side view of a hot air circulation type drying oven according to the present invention, and FIG. 2 is a front view taken along the - line in FIG. 1. In Figures 1 and 2, 1
is a drying oven formed in the shape of a tunnel and open at both ends, and air curtain generators 2 and 2a are provided at the openings at both ends of the drying oven 1, respectively. This air curtain generator 2, 2a
consists of circulation ducts 3, 3a whose both ends open inside the upper end of the drying oven 1, and circulation fans 4, 4a provided in the middle of the circulation ducts 3, 3a. And this air curtain generator 2,
Openings at both ends of the drying oven 1 are closed by air curtains blown out from the drying oven 2a.
また、乾燥炉１内の中央天井部には、長手方向
に向けてコンベア５が設けられており、このコン
ベア５には鋼板，樹脂等から形成されている製品
Ｗを吊下する支持具６が設けられている。また、
乾燥炉１内の両側方には長手方向に向けて仕切板
７，７ａが配設されており、この仕切板７，７ａ
は側部の炉壁１ａとの間に間隔を有し、上端が天
井部の炉壁１ａに固着されていると共に、下端は
床８に固着されている。そして、仕切板、７，７
ａには複数個の噴出口９，９ａが開設されてお
り、この仕切板７，７ａと側部の炉壁１ａとの間
の間隔は送気チヤンバ１０，１０ａを形成してい
る。 Further, a conveyor 5 is provided in the central ceiling of the drying oven 1 in the longitudinal direction, and a support 6 for suspending the product W made of steel plate, resin, etc. is provided on the conveyor 5. It is provided. Also,
Partition plates 7, 7a are disposed on both sides of the drying oven 1 in the longitudinal direction.
has a space between it and the side furnace wall 1a, and its upper end is fixed to the ceiling furnace wall 1a, and its lower end is fixed to the floor 8. And the partition plate, 7, 7
A plurality of ejection ports 9, 9a are provided in the space a, and the space between the partition plates 7, 7a and the side furnace wall 1a forms an air supply chamber 10, 10a.
また、仕切板７，７ａの前方には天井部の炉壁
１ａを貫通して床８面に向かう供給管１１が配設
されており、この供給管１１には複数個の噴射ノ
ズル１２が設けられ、炉壁１ａの外部に突出して
いる先部には圧縮空気供給源であるコンプレツサ
１３に接続されている給気ダクト１４が連設され
ている。そして、供給管１１の噴射ノズル１２の
先端にはゴム，合成樹脂等からなる軟質のフレキ
シブルチユーブ１５が設けられており、噴射ノズ
ル１２から圧縮空気が噴出される際に、矢印のよ
うに上下左右に激しく謡動して製品Ｗのすみずみ
まで圧縮空気が吹き付けられるようになつてい
る。 In addition, in front of the partition plates 7 and 7a, a supply pipe 11 is provided that passes through the furnace wall 1a of the ceiling and goes toward the floor 8, and this supply pipe 11 is provided with a plurality of injection nozzles 12. An air supply duct 14 connected to a compressor 13, which is a compressed air supply source, is connected to the tip of the furnace wall 1a projecting to the outside. A soft flexible tube 15 made of rubber, synthetic resin, etc. is provided at the tip of the injection nozzle 12 of the supply pipe 11, and when compressed air is ejected from the injection nozzle 12, it The product W is now blown with compressed air to every corner as it sings vigorously.
また、乾燥炉１の上部には加熱装置１６が配設
されている。この加熱装置１６は、一端が乾燥炉
１の内部に開口し、他端が乾燥炉１の送気チヤン
バ１０，１０ａに開口している循環ダクト１７
と、この循環ダクト１７の途中に設けられている
燃焼バーナ１８及び循環フアン１９と、一端が大
気に開放し、他端が燃焼バーナ１８に接続され、
その途中に給気フアン２０が設けられている送気
ダクト２１とからなつている。そして、乾燥炉１
内の高温空気の一部は、循環ダクト１７から燃焼
バーナ１８に戻り、給気フアン２０から供給され
る空気と混合されると共に、燃焼バーナ１８によ
つて所定の温度に調整され、循環フアン１９によ
つて循環ダクト１７及び送気チヤンバ１０，１０
ａを経由して噴出口９，９ａから乾燥炉１内に循
環されるようになつている。 Further, a heating device 16 is disposed above the drying oven 1. This heating device 16 is connected to a circulation duct 17 which has one end opening into the interior of the drying oven 1 and the other end opening into the air supply chambers 10 and 10a of the drying oven 1.
A combustion burner 18 and a circulation fan 19 are provided in the middle of this circulation duct 17, one end of which is open to the atmosphere, and the other end of which is connected to the combustion burner 18.
It consists of an air supply duct 21 in which an air supply fan 20 is provided in the middle. And drying oven 1
A part of the high-temperature air in the air returns from the circulation duct 17 to the combustion burner 18, where it is mixed with the air supplied from the air supply fan 20, and is adjusted to a predetermined temperature by the combustion burner 18. Circulation duct 17 and air supply chamber 10,10
It is designed to be circulated into the drying oven 1 from the spout ports 9 and 9a via a.
上記のように構成された熱風循環型乾燥炉にお
いて、乾燥炉１の両端開口部は、循環フアン４，
４ａによつて循環ダクト３，３ａの一端から乾燥
炉１内の高温空気を吸引し、他端から下方に向け
て高温空気を噴出させてエアカーテンを形成せし
め、このエアカーテンによつて開口部が閉塞され
て乾燥炉１内の高温度の空気の流出が防止され
る。 In the hot air circulation type drying oven configured as described above, the openings at both ends of the drying oven 1 are provided with circulation fans 4,
4a sucks high-temperature air in the drying oven 1 from one end of the circulation ducts 3, 3a, and blows the high-temperature air downward from the other end to form an air curtain, and this air curtain closes the opening. is closed to prevent the high temperature air inside the drying oven 1 from flowing out.
そして、乾燥炉１内は、燃焼バーナ１８によつ
て送気ダクト２１および循環ダクト１７から供給
される新鮮空気及び高温空気が所定の温度に加熱
されると共に、循環フアン１９によつて循環ダク
ト１７及び送気チヤンバ１０，１０ａを通して噴
出口９，９ａから供給されて所定の温度に保たれ
る。 Inside the drying oven 1, fresh air and high-temperature air supplied from the air supply duct 21 and the circulation duct 17 are heated to a predetermined temperature by the combustion burner 18, and the circulation duct 17 is heated by the circulation fan 19. The air is supplied from the jet ports 9, 9a through the air supply chambers 10, 10a and maintained at a predetermined temperature.
しかして、この乾燥炉１内に、支持具６に吊下
されている洗浄後の製品Ｗがコンベア５によつて
搬入される。そして、製品Ｗが供給管１１の近傍
に搬送されてきた時、コンプレツサ１３から給気
ダクト１４，供給管１１，噴射ノズル１２を通
り、フレキシブルチユーブ１５から噴出される圧
縮空気が吹き付けられ、製品Ｗの表面に付着する
水滴が吹き飛ばされる。その際、フレキシブルチ
ユーブ１５は、矢印のように上下左右に激しく揺
動し、製品Ｗは種々な方向から圧縮空気が吹き付
けられるとと共に、乾燥炉１の内部及び加熱装置
１６を循環する高温空気によつて晒され、製品Ｗ
の表面に付着する水滴の吹き飛ばし及び蒸発が行
なわれる。 The washed product W suspended from the support 6 is then carried into the drying oven 1 by the conveyor 5. When the product W is transported near the supply pipe 11, compressed air is blown from the compressor 13 through the supply air duct 14, the supply pipe 11, and the injection nozzle 12, and is ejected from the flexible tube 15. Water droplets adhering to the surface are blown away. At this time, the flexible tube 15 violently swings vertically and horizontally as shown by the arrow, and the product W is blown with compressed air from various directions and exposed to high temperature air circulating inside the drying oven 1 and the heating device 16. Twisted and exposed, product W
The water droplets adhering to the surface are blown off and evaporated.
なお、本考案においては、圧縮空気を吹き出さ
せる吹付け機を１個設けた実施例によつて説明し
たが、製品Ｗの大きさ、複雑度に応じて数個ない
し数十個配設することができ、また噴射ノズル１
２においても、製品Ｗの大きさ、複雑度、供給管
１１の長さ等に応じ、その数を決めることができ
る。 Although the present invention has been explained by an embodiment in which one blower for blowing out compressed air is provided, several to dozens of blowers may be provided depending on the size and complexity of the product W. is possible, and the injection nozzle 1
2, the number can be determined depending on the size and complexity of the product W, the length of the supply pipe 11, etc.
以上説明したように、本考案の熱風循環型乾燥
炉においては、乾燥炉の炉壁との間に一定の間隔
を有して仕切板を配設し、この仕切板と炉壁との
間の間隔に加熱装置に通ずる循環ダクトを接続せ
しめ、仕切板の前方に圧縮空気供給源に通ずる供
給管を配設し、この供給管に複数個の噴射ノズル
を設けると共に、この噴出ノズルの先端に軟質の
フレキシブルチユーブを取り付けたから、製品の
水滴除去時においてフレキシブルチユーブの揺動
による圧縮空気を製品の種々な方向から吹き付け
ることができると共に、循環する高温空気によつ
て晒されるので、製品表面に付着する水滴はゆう
におよばず、特に凹部のコーナーに付着した水滴
の除去、数種類の異形状製品に対する水滴の除去
を短時間に、しかも完全に除去することができる
効果がある。 As explained above, in the hot air circulation type drying oven of the present invention, a partition plate is disposed at a constant distance from the oven wall of the drying oven, and the distance between the partition plate and the oven wall is A circulation duct leading to the heating device is connected between the gaps, a supply pipe leading to a compressed air supply source is arranged in front of the partition plate, and a plurality of injection nozzles are provided in this supply pipe, and a soft Since the flexible tube is attached, when removing water droplets from the product, compressed air can be blown from various directions on the product by swinging the flexible tube, and since it is exposed to the circulating high temperature air, it will not adhere to the product surface. The water droplets do not spread easily, and are particularly effective in removing water droplets adhering to the corners of recesses and in removing water droplets from several types of irregularly shaped products in a short time and completely.
また、製品が樹脂等の熱変形を受けやすい材質
からなる場合でも、60℃程度の比較的低い熱風で
水滴を除去することができるので、熱による変形
を防止することができる効果がある。 Furthermore, even if the product is made of a material that is susceptible to thermal deformation, such as resin, water droplets can be removed with relatively low hot air of about 60°C, which has the effect of preventing deformation due to heat.
さらに、従来のように噴射ノズルを有する供給
管及びフレキシブルチユーブを使用しない場合に
は、高圧力（２Kg／cm2以上）で、多量の高温空気
を噴出させる必要があり、エネルギー消費及び騒
音の点で問題があるが、本考案によれば低空気圧
（0.5Kg／cm2〜1.5Kg／cm2程度）で水滴を除去する
ことができるので、エネルギーの消費及び騒音を
著しく低減させることができる効果がある。 Furthermore, when conventional supply pipes and flexible tubes with injection nozzles are not used, it is necessary to eject a large amount of high-temperature air at high pressure (2 kg/cm 2 or more), which reduces energy consumption and noise. However, according to the present invention, water droplets can be removed with low air pressure (approximately 0.5Kg/cm 2 to 1.5Kg/cm 2 ), which has the effect of significantly reducing energy consumption and noise. There is.
第１図は本考案に係る熱風循環型乾燥炉の側面
図、第２図は第１図の−線に沿つて切断した
正面図である。
１……乾燥炉、１ａ……炉壁、２，２ａ……エ
アカーテン装置、３，３ａ……循環ダクト、４，
４ａ……循環フアン、５……コンベア、６……支
持具、７，７ａ……仕切板、８……床、９，９ａ
……噴出口、１０，１０ａ……送気チヤンバ、１
１……供給管、１２……噴射ノズル、１３……コ
ンプレツサ、１４……給気ダクト、１５……フレ
キシブルチユーブ、１６……加熱装置、１７……
循環ダクト、１８……燃焼バーナ、１９……循環
フアン、２０……給気フアン、２１……送気ダク
ト。
FIG. 1 is a side view of a hot air circulation type drying oven according to the present invention, and FIG. 2 is a front view taken along the - line in FIG. 1. 1... Drying oven, 1a... Furnace wall, 2, 2a... Air curtain device, 3, 3a... Circulation duct, 4,
4a... Circulation fan, 5... Conveyor, 6... Support, 7, 7a... Partition plate, 8... Floor, 9, 9a
...Air outlet, 10, 10a...Air supply chamber, 1
DESCRIPTION OF SYMBOLS 1... Supply pipe, 12... Injection nozzle, 13... Compressor, 14... Air supply duct, 15... Flexible tube, 16... Heating device, 17...
Circulation duct, 18... Combustion burner, 19... Circulation fan, 20... Air supply fan, 21... Air supply duct.
Claims (1)
部に空気供給ブロワー、燃焼バーナ及び循環フア
ン等からなる加熱装置が配設されている乾燥炉で
あつて、この乾燥炉の炉壁との間に一定の間隔を
有して複数個の噴出口が開設されている仕切板を
配設し、この仕切板と炉壁との間の間隔に前記加
熱装置に通ずる循環ダクトを接続せしめ、前記仕
切板の前方に圧縮空気供給源に通ずる供給管を配
設し、この供給管に複数個の噴射ノズルを設ける
と共に、この噴出ノズルの先端に軟質のフレキシ
ブルチユーブを取り付けたことを特徴とする熱風
循環型乾燥炉。 This is a drying oven in which an air curtain device is installed at both end openings, and a heating device consisting of an air supply blower, combustion burner, circulation fan, etc. A partition plate in which a plurality of spout ports are opened with an interval of Hot air circulation type drying characterized by having a supply pipe connected to a compressed air supply source in the front, a plurality of injection nozzles provided on this supply pipe, and a soft flexible tube attached to the tip of the injection nozzle. Furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261483U JPS602294U (en) | 1983-06-16 | 1983-06-16 | Hot air circulation drying oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261483U JPS602294U (en) | 1983-06-16 | 1983-06-16 | Hot air circulation drying oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS602294U JPS602294U (en) | 1985-01-09 |
| JPS6234232Y2 true JPS6234232Y2 (en) | 1987-09-01 |
Family
ID=30222913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9261483U Granted JPS602294U (en) | 1983-06-16 | 1983-06-16 | Hot air circulation drying oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS602294U (en) |
-
1983
- 1983-06-16 JP JP9261483U patent/JPS602294U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS602294U (en) | 1985-01-09 |
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