JP2588101B2 - Drying equipment - Google Patents
Drying equipmentInfo
- Publication number
- JP2588101B2 JP2588101B2 JP4298847A JP29884792A JP2588101B2 JP 2588101 B2 JP2588101 B2 JP 2588101B2 JP 4298847 A JP4298847 A JP 4298847A JP 29884792 A JP29884792 A JP 29884792A JP 2588101 B2 JP2588101 B2 JP 2588101B2
- Authority
- JP
- Japan
- Prior art keywords
- drying
- blower
- air
- chamber
- suction chamber
- 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 - Fee Related
Links
- 238000001035 drying Methods 0.000 title claims description 78
- 238000005192 partition Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
- Drying Of Solid Materials (AREA)
- Coating Apparatus (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、各種工業製品を有機溶
剤等で洗浄した後、或は塗装した後の製品を乾燥させる
ための乾燥装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying apparatus for drying various industrial products after they have been washed or coated with an organic solvent or the like.
【０００２】[0002]
【従来の技術】例えば、電気部品等の工業製品は、その
製造工程の一部で、洗浄液により洗浄する場合があり、
その洗浄液には、脱フロン化の推進から、炭化水素系或
はアルコール系の有機溶剤が一般に使用される。2. Description of the Related Art For example, industrial products such as electric parts may be washed with a washing liquid in a part of the manufacturing process.
As the cleaning liquid, a hydrocarbon-based or alcohol-based organic solvent is generally used in order to promote the removal of chlorofluorocarbon.
【０００３】この種の洗浄工程の次に乾燥工程が配置さ
れるが、その乾燥には真空乾燥、或は熱風乾燥が一般に
使用される。真空乾燥は、製品に与える影響、乾燥効
率、安全性の観点から良好であるが、装置が大形化する
と共に、乾燥室内を真空に引く際にかなり長い時間を必
要とするため、生産ラインにおける製品のタクト時間が
短い場合、乾燥処理を完了することが難しく、採用する
ことができない。[0003] A drying step is arranged after such a washing step, and vacuum drying or hot air drying is generally used for the drying step. Vacuum drying is good in terms of the effect on the product, drying efficiency, and safety.However, as the equipment becomes larger, it takes a considerably long time to apply a vacuum to the drying chamber. If the tact time of the product is short, it is difficult to complete the drying process, and it cannot be adopted.
【０００４】[0004]
【発明が解決しようとする課題】一方、熱風乾燥は、真
空乾燥より短時間で製品を乾燥処理することができる
が、洗浄液に引火性の高い炭化水素系或はアルコール系
の有機溶剤が使用される場合、燃焼バーナ等の熱源を乾
燥室内に配置し、或は別個に設置した熱源と乾燥室間で
空気を循環させることは、火災の危険性が大きい。この
ため、高温にならない加熱器を乾燥室内に配置し、乾燥
室内に設けた送風機により送風を行い、加熱器で加熱さ
れた空気を製品に吹き付けて乾燥を行う装置が知られて
いる（例えば、実開平３−５７３９２号公報等参照）。On the other hand, hot-air drying can dry the product in a shorter time than vacuum drying, but uses a highly flammable hydrocarbon or alcohol-based organic solvent for the cleaning liquid. In such a case, placing a heat source such as a combustion burner in the drying chamber, or circulating air between the separately installed heat source and the drying chamber increases the risk of fire. For this reason, there is known an apparatus in which a heater that does not reach a high temperature is arranged in a drying chamber, air is blown by a blower provided in the drying chamber, and air heated by the heater is blown on the product to dry the product (for example, See Japanese Utility Model Unexamined Publication No. 3-57392.
【０００５】しかし、この種の乾燥装置は、通常、１台
の送風機で加熱器への送風と製品への空気の吹き付けを
行うが、製品の乾燥効率を高めるためには、風速と風量
を多くして製品への送風を行うことが必要であるのに対
し、加熱器における熱交換効率は必ずしもその風速と風
量の増大に比例せず、熱源で消費されるエネルギー量の
割に、乾燥効率が比較的低いという問題があった。[0005] However, this type of drying apparatus usually uses a single blower to blow air to the heater and blow air to the product. However, in order to increase the drying efficiency of the product, the wind speed and air volume must be increased. While it is necessary to blow air to the product, the heat exchange efficiency of the heater is not necessarily proportional to the increase in the wind speed and air volume, and the drying efficiency is higher than the energy consumed by the heat source. There was a problem that it was relatively low.
【０００６】本発明は、上記の点に鑑みてなされたもの
で、引火性の有機溶剤が付着した工業製品等であっても
効率良く安全に乾燥することができる乾燥装置を提供す
ることを目的とする。The present invention has been made in view of the above points, and has as its object to provide a drying apparatus that can efficiently and safely dry industrial products to which a flammable organic solvent has adhered. And
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明の乾燥装置は、断熱壁で包囲された乾燥炉内
が、仕切板によって上部に乾燥室を下部に吸入室を形成
するように仕切られ、仕切板には吸入室内の空気を乾燥
室に送風する第一送風機が取付けられ、乾燥室と吸入室
間を乾燥炉の外側で連通するように、循環ダクトが乾燥
室と吸入室間に接続され、吸入室には加熱器が、ダクト
と第二送風機を介して熱風を吸入室に送風するように接
続され、乾燥炉の上部には第三送風機を設けた排気用ダ
クトが接続されていることを特徴とする。In order to achieve the above-mentioned object, a drying apparatus according to the present invention has a drying furnace surrounded by a heat insulating wall, wherein a drying chamber is formed at an upper part by a partition plate and a suction chamber is formed at a lower part. A first blower that blows the air in the suction chamber to the drying chamber is attached to the partition plate, and a circulation duct is connected to the drying chamber so that the drying chamber and the suction chamber communicate with each other outside the drying furnace. A heater is connected to the suction chamber, a heater is connected to the suction chamber to blow hot air to the suction chamber via the duct and the second blower, and an exhaust duct provided with a third blower is provided above the drying furnace. It is characterized by being connected.
【０００８】[0008]
【作用・効果】上記のように構成された乾燥装置では、
第一送風機の運転により、上部の乾燥室内の空気が循環
ダクトを通り下部の吸入室に送られ、吸入室から乾燥室
内に送風され、乾燥室内の製品に風を吹き付けるよう
に、空気が循環する。同時に、第二送風機の運転によ
り、加熱器を通して熱風がダクトから吸入室内に送ら
れ、循環空気に熱風が加わり、第一送風機の送風により
乾燥室内で熱風が製品に吹き付けられる。また、第三送
風機の運転により、加熱器を通して吸入室内に送られた
空気量と同量の空気が、排気用ダクトを通して排気さ
れ、第一送風機による熱風の循環は最良の乾燥効率が得
られる風速と風量で効率良く行われる。[Operation and effect] In the drying device configured as described above,
By the operation of the first blower, the air in the upper drying chamber is sent to the lower suction chamber through the circulation duct, and is blown into the drying chamber from the suction chamber, and the air is circulated so as to blow air to the products in the drying chamber. . At the same time, by the operation of the second blower, hot air is sent from the duct into the suction chamber through the heater, hot air is added to the circulating air, and the hot air is blown to the product in the drying chamber by the blower of the first blower. In addition, by the operation of the third blower, the same amount of air as the amount of air sent into the suction chamber through the heater is exhausted through the exhaust duct. It is performed efficiently with the air volume.
【０００９】したがって、第二送風機の風量・風速を熱
交換効率が最良な状態に設定すると共に、熱風の供給と
は別個の第一送風機の風量・風速を乾燥効率が最良な状
態に設定することができ、熱源の消費エネルギーを最小
に抑えながら、最大の乾燥効率で製品の乾燥を行うこと
ができる。Therefore, the air volume and the air velocity of the second blower are set to the state where the heat exchange efficiency is the best, and the air volume and the air velocity of the first blower separate from the supply of the hot air are set to the state where the drying efficiency is the best. Thus, the product can be dried with the maximum drying efficiency while minimizing the energy consumption of the heat source.
【００１０】また、乾燥室内の空気が加熱器に戻ること
はないため、、被乾燥物の製品に引火性の高い有機溶剤
が付着している場合でも、安全に乾燥処理を行うことが
できる。[0010] Further, since the air in the drying chamber does not return to the heater, the drying process can be performed safely even when a highly flammable organic solvent is attached to the product to be dried.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１、図２はコンベヤと共に使用されるト
ンネル式の乾燥装置を示している。乾燥炉１は、周囲を
断熱壁２で包囲された箱形に形成され、その中央を貫通
して製品搬送用のコンベヤ（例えば、ネットコンベヤ）
３が敷設され、コンベヤ３が貫通する乾燥炉両側の搬入
・搬出口には扉４が設けられる。FIGS. 1 and 2 show a tunnel type drying apparatus used with a conveyor. The drying furnace 1 is formed in a box shape surrounded by a heat insulating wall 2, and penetrates the center of the drying furnace 1 to convey a product (for example, a net conveyor).
A door 4 is provided at a loading / unloading port on both sides of the drying furnace through which the conveyor 3 penetrates.
【００１３】乾燥炉１内は、コンベヤ３の下側におい
て、仕切板５により上下に仕切られ、上に乾燥室６が形
成され、下に吸入室７が形成される。さらに、仕切板５
の略中央に、第一送風機８が吐出側を乾燥室６に向けて
取付けられる。即ち、第一送風機８は、吸入室７内の空
気を乾燥室６内に送風するように取付けられ、漏斗状の
仕切板５の上部には、第一送風機８から送風された空気
をコンベヤ３上に均一に送風するように、多孔板９が取
付けられる。The inside of the drying furnace 1 is vertically divided by a partition plate 5 below the conveyor 3, a drying chamber 6 is formed above, and a suction chamber 7 is formed below. Further, the partition plate 5
, A first blower 8 is attached with the discharge side facing the drying chamber 6. That is, the first blower 8 is attached so as to blow the air in the suction chamber 7 into the drying chamber 6, and the air blown from the first blower 8 is placed above the funnel-shaped partition plate 5 on the conveyor 3. The perforated plate 9 is attached so as to blow air uniformly on the top.
【００１４】乾燥炉１には、その上部から下部にかけ
て、つまり乾燥室６と吸入室７を外側で連通させるよう
に、循環ダクト１０が乾燥室６と吸入室７間に連通・接
続され、第一送風機８の運転により、乾燥炉１内の空気
が循環ダクト１０を通して循環する。A circulation duct 10 is connected and connected between the drying chamber 6 and the suction chamber 7 from the upper part to the lower part of the drying furnace 1, that is, so that the drying chamber 6 and the suction chamber 7 communicate with each other outside. By operating one blower 8, the air in the drying furnace 1 circulates through the circulation duct 10.
【００１５】１１は、吸入する空気を加熱する加熱器で
あり、電気ヒータ、燃焼バーナ等の熱源、或は熱交換器
から構成され、ダクト１２と第二送風機１３を介して、
乾燥炉１の吸入室７に接続される。第二送風機１３は加
熱器１１からの空気を吸引し、ダクト１２を通して乾燥
炉の吸入室７内に送風するように設けられる。加熱器１
１の吸入側に接続された吸入ダクト１４内に、吸気用ダ
ンパー１５が設けられ、加熱器１１の吸入空気量をこの
ダンパー１５で調整する。また、ダクト１２内に逆止ダ
ンパー１６が設けられ、吸入室７側から加熱器側への空
気の逆流を防止する。Reference numeral 11 denotes a heater for heating the air to be taken in. The heater 11 includes a heat source such as an electric heater and a combustion burner, or a heat exchanger.
It is connected to the suction chamber 7 of the drying furnace 1. The second blower 13 is provided so as to suck air from the heater 11 and blow the air through the duct 12 into the suction chamber 7 of the drying furnace. Heater 1
An intake damper 15 is provided in an intake duct 14 connected to the intake side of the heater 1, and the intake air amount of the heater 11 is adjusted by the damper 15. In addition, a check damper 16 is provided in the duct 12 to prevent a backflow of air from the suction chamber 7 side to the heater side.
【００１６】一方、乾燥炉１の上部には、排気ダクト１
７が接続され、排気ダクト１７に第三送風機１８が接続
され、排気ダクト１７内に排気用ダンパー１９が設けら
れる。第三送風機１８は乾燥室６内の空気を吸引し排気
する。この排気用ダンパーと上記吸気用ダンパー１９
は、第二送風機１３により吸引される空気量と第三送風
機１８により排気される空気量が同じになるように調整
される。On the other hand, an exhaust duct 1
7 is connected, a third blower 18 is connected to the exhaust duct 17, and an exhaust damper 19 is provided in the exhaust duct 17. The third blower 18 sucks and exhausts air in the drying chamber 6. The exhaust damper and the intake damper 19
Is adjusted so that the amount of air sucked by the second blower 13 and the amount of air exhausted by the third blower 18 are the same.
【００１７】上記第一送風機８、第二送風機１３、第三
送風機１８には、何れもケーシングを備えたモータ駆動
の多翼形ラジアルファンが使用され、特に第一送風機８
には風量の充分に大きい送風機が使用される。また、第
一送風機８、第二送風機１３、第三送風機１８には、ケ
ーシング内の圧力を検出する圧力検出器２０が設けら
れ、運転中に何れかの送風機が故障等により停止したと
き、非常停止をかけて危険な状態の運転を回避する構造
である。As the first blower 8, the second blower 13, and the third blower 18, a motor-driven multi-blade radial fan having a casing is used.
, A blower having a sufficiently large air volume is used. Each of the first blower 8, the second blower 13, and the third blower 18 is provided with a pressure detector 20 for detecting a pressure in the casing. It is a structure that stops and avoids driving in a dangerous state.
【００１８】上記のように構成された乾燥装置は、工業
製品の生産ラインにおける洗浄後の乾燥工程に使用さ
れ、製品は洗浄工程において有機溶剤で洗浄された後、
コンベヤ３により乾燥炉１内に搬入され、コンベヤ３を
停止させ、乾燥炉１の両側の扉４を閉じる。そして、第
一送風機８、第二送風機１３、第三送風機１８を起動す
ると共に、加熱器１１を動作させる。The drying apparatus configured as described above is used in a drying step after washing in a production line of an industrial product, and after the product is washed with an organic solvent in the washing step,
The conveyor 3 is carried into the drying furnace 1, the conveyor 3 is stopped, and the doors 4 on both sides of the drying furnace 1 are closed. Then, the first blower 8, the second blower 13, and the third blower 18 are activated, and the heater 11 is operated.
【００１９】第一送風機８の運転により、上部の乾燥室
６内の空気が循環ダクト１０を通り下部の吸入室７に送
られ、吸入室７から乾燥室６内に送風され、乾燥室６内
の製品に風を吹き付けるように、空気が循環する。By the operation of the first blower 8, the air in the upper drying chamber 6 is sent to the lower suction chamber 7 through the circulation duct 10, and is blown into the drying chamber 6 from the suction chamber 7, and The air circulates as if blowing air on the product.
【００２０】同時に、第二送風機１３の運転により、加
熱器１１を通して熱風がダクト１２から吸入室７内に送
られ、吸入室７内で循環空気に熱風が加わり、第一送風
機８によって送風された乾燥室６内で熱風が製品に吹き
付けられる。また、第三送風機１８の運転により、加熱
器１１を通して吸入室７内に送られた空気量と略同量の
空気が、排気用ダクト１７を通して排気され、第一送風
機８による充分な風量の熱風の循環と吹き付けが、吸・
排気とは独立して充分に行われることによって、コンベ
ヤ３上の製品の乾燥処理が効率良く行われる。At the same time, by the operation of the second blower 13, hot air is sent from the duct 12 into the suction chamber 7 through the heater 11, the hot air is added to the circulating air in the suction chamber 7, and is blown by the first blower 8. Hot air is blown on the product in the drying chamber 6. By the operation of the third blower 18, substantially the same amount of air as the amount of air sent into the suction chamber 7 through the heater 11 is exhausted through the exhaust duct 17, and a sufficient amount of hot air is blown by the first blower 8. Circulation and spraying
The drying of the product on the conveyor 3 is efficiently performed by performing the processing sufficiently independently of the exhaust.
【００２１】停電や故障等により、第二送風機１３が停
止した場合、ダクト１２内の逆止ダンパー１６が自動的
に閉鎖するため、引火性の高い炭化水素系或はアルコー
ル系の有機溶剤が加熱器１１に進入することはなく、爆
発や火災の発生は防止される。When the second blower 13 stops due to a power failure or a failure, the non-return damper 16 in the duct 12 automatically closes, so that a highly flammable hydrocarbon or alcohol organic solvent is heated. It does not enter the vessel 11 and explosion and fire are prevented from occurring.
【００２２】所定時間の乾燥が終了すると、乾燥炉１の
扉４を開き、コンベヤ３を起動して、乾燥の終了した製
品を炉内から搬出すると共に、新な製品を乾燥炉１内に
搬入し、再び扉４を閉じて上記と同様な乾燥処理を行
う。When drying for a predetermined time is completed, the door 4 of the drying furnace 1 is opened, the conveyor 3 is started, and the dried product is carried out of the furnace, and a new product is carried into the drying furnace 1. Then, the door 4 is closed again and the same drying process as described above is performed.
【００２３】なお、上記実施例はトンネル式の乾燥炉で
あったが、コンベヤを使用しないバッチ式の乾燥炉に本
発明を適用することもできる。Although the above-described embodiment is a tunnel-type drying furnace, the present invention can be applied to a batch-type drying furnace that does not use a conveyor.
【図１】本発明の一実施例を示す乾燥装置の斜視図であ
る。FIG. 1 is a perspective view of a drying apparatus showing one embodiment of the present invention.
【図２】同乾燥装置の縦断面図である。FIG. 2 is a longitudinal sectional view of the drying device.
１−乾燥炉、２−断熱壁、３−コンベヤ、５−仕切板、
６−乾燥室、７−吸入室、８−第一送風機、１０−循環
ダクト、１１−加熱器、１３−第二送風機、１８−第三
送風機、１９−排気用ダクト。1-drying oven, 2-insulated wall, 3-conveyor, 5-partition plate,
6-drying chamber, 7-suction chamber, 8-first blower, 10-circulation duct, 11-heater, 13-second blower, 18-third blower, 19-exhaust duct.
Claims (3)
よって上部に乾燥室を下部に吸入室を形成するように仕
切られ、該仕切板には該吸入室内の空気を該乾燥室に送
風する第一送風機が取付けられ、該乾燥室と該吸入室間
を該乾燥炉の外側で連通するように循環ダクトが該乾燥
室と該吸入室間に接続され、該吸入室には加熱器がダク
トと第二送風機を介して熱風を該吸入室に送風するよう
に接続され、該乾燥炉の上部には第三送風機を設けた排
気用ダクトが接続されていることを特徴とする乾燥装
置。1. A drying furnace surrounded by a heat insulating wall is partitioned by a partition plate so as to form a drying chamber at an upper part and a suction chamber at a lower part, and the air in the suction chamber is supplied to the drying chamber by the partition plate. A first blower for blowing air is attached, and a circulation duct is connected between the drying chamber and the suction chamber so as to communicate between the drying chamber and the suction chamber outside the drying furnace. Is connected so as to blow hot air to the suction chamber through a duct and a second blower, and an exhaust duct provided with a third blower is connected to an upper part of the drying furnace. .
止ダンパーが設けられてなる請求項１記載の乾燥装置。2. The drying device according to claim 1, wherein a check damper is provided in a duct between the heater and the second blower.
搬送用のコンベヤが敷設され、該乾燥炉がトンネル式乾
燥炉として形成される請求項１記載の乾燥装置。3. The drying apparatus according to claim 1, wherein a conveyor for transporting the object to be dried is laid so as to pass through the drying furnace, and the drying furnace is formed as a tunnel type drying furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4298847A JP2588101B2 (en) | 1992-11-09 | 1992-11-09 | Drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4298847A JP2588101B2 (en) | 1992-11-09 | 1992-11-09 | Drying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06142592A JPH06142592A (en) | 1994-05-24 |
| JP2588101B2 true JP2588101B2 (en) | 1997-03-05 |
Family
ID=17864981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4298847A Expired - Fee Related JP2588101B2 (en) | 1992-11-09 | 1992-11-09 | Drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2588101B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101277691B1 (en) | 2011-07-08 | 2013-06-21 | 유지문 | Dryer system of leather automatic painting apparatus |
| CN104677078A (en) * | 2015-01-05 | 2015-06-03 | 佛山市海天(高明)调味食品有限公司 | Continuous drying machine for drying bean dregs |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101242649B1 (en) * | 2010-03-11 | 2013-03-19 | 주식회사 쎄코 | Dryer system of leather automatic painting apparatus |
| JP5875358B2 (en) * | 2011-12-19 | 2016-03-02 | 光洋サーモシステム株式会社 | Drying equipment |
| JP5920106B2 (en) * | 2012-08-21 | 2016-05-18 | 三浦工業株式会社 | Boiler system |
| KR20140110433A (en) * | 2013-03-07 | 2014-09-17 | 이태섭 | A dry machine system having a heat exchanger |
| CN116623467A (en) * | 2023-04-13 | 2023-08-22 | 湖南永顺环保材料有限公司 | Single-area linkage type paperboard dehumidifier |
-
1992
- 1992-11-09 JP JP4298847A patent/JP2588101B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101277691B1 (en) | 2011-07-08 | 2013-06-21 | 유지문 | Dryer system of leather automatic painting apparatus |
| CN104677078A (en) * | 2015-01-05 | 2015-06-03 | 佛山市海天(高明)调味食品有限公司 | Continuous drying machine for drying bean dregs |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06142592A (en) | 1994-05-24 |
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