JPH02139067A - Operation of coated material drying and baking furnace - Google Patents
Operation of coated material drying and baking furnaceInfo
- Publication number
- JPH02139067A JPH02139067A JP29236388A JP29236388A JPH02139067A JP H02139067 A JPH02139067 A JP H02139067A JP 29236388 A JP29236388 A JP 29236388A JP 29236388 A JP29236388 A JP 29236388A JP H02139067 A JPH02139067 A JP H02139067A
- Authority
- JP
- Japan
- Prior art keywords
- drying
- baking furnace
- incinerator
- gas
- 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.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims abstract description 71
- 239000000463 material Substances 0.000 title description 3
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 239000003960 organic solvent Substances 0.000 claims abstract description 13
- 239000003973 paint Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 62
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000000935 solvent evaporation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、塗料の乾燥焼付炉の操業方法に係わり、特
に有４ｍ溶剤塗布量が少なくてもインシネレータの燃料
使用量を削減できる塗料乾燥焼付炉の操業方法に関する
ものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method of operating a paint drying and baking furnace, and particularly relates to a method of operating a paint drying and baking furnace, which can reduce the amount of fuel used by an incinerator even if the amount of applied solvent is small. It concerns how to operate a furnace.
〈従来の技術〉
従来、塗料の乾燥焼付炉の省エネルギーを考慮した操業
方法として特開昭６１−５０６７３号公報に開示された
方法がある。この方法の特徴を第２図により説明する。<Prior Art> Conventionally, there is a method disclosed in JP-A-61-50673 as a method of operating a paint drying and baking oven in consideration of energy conservation. The features of this method will be explained with reference to FIG.
通板材２はコークロール４で塗料を塗布されて乾燥焼付
炉６に通板される。インシネレータ８の焼却排ガスの排
出経路１０Ａには第１の熱交換器１２が設けられている
。乾燥焼付炉６は第１の熱交換器１２で加熱された清浄
な加熱空気を熱源として、塗料の乾燥焼付を行っている
。第１の熱交換器１２に供給する空気はフィルター１４
で除塵された後、流量を！１１節するための空気流量調
節弁１６を経て、ブロワ１８で第１の熱交換器１２へ導
入される。加熱された清浄な加熱空気は経路２０を経て
流１ｉｔ！Ｊ節弁２２に供給され、循環ブロワ２４を介
して乾燥焼付炉６に送給され塗料の乾燥焼付を行う、ま
た、インシネレータ８の焼却排ガスの排出経路１０Ｂに
は乾燥焼付炉６より出力される炉排ガスを加熱する第２
の熱交換器２６が設けられている。The threaded material 2 is coated with paint using a coke roll 4 and passed through a drying and baking oven 6. A first heat exchanger 12 is provided in the incineration exhaust gas exhaust path 10A of the incinerator 8. The drying and baking furnace 6 uses clean heated air heated by the first heat exchanger 12 as a heat source to dry and bake the paint. The air supplied to the first heat exchanger 12 is filtered through the filter 14.
After the dust is removed, the flow rate! The air is introduced into the first heat exchanger 12 by a blower 18 after passing through an air flow control valve 16 for controlling air flow. The heated clean heated air flows through the path 20! It is supplied to the J section valve 22 and sent to the drying and baking furnace 6 via the circulation blower 24 to dry and bake the paint, and is also output from the drying and baking furnace 6 to the incineration exhaust gas exhaust path 10B of the incinerator 8. The second heating furnace exhaust gas
A heat exchanger 26 is provided.
このようにインシネレータ８の焼却排ガスの排出経路は
第１の熱交換器１２に接続される経路１０Ａと第２の熱
交換器２６に接続される経路１０Ｂの２系統に分岐され
ている。経路１０Ａ内には第１の熱交換器１２より出力
される加熱空気の温度を２１８節する連動弁２８が設け
られ、さらに経路１０Ｂ内にはインシネレータ８に供給
される炉排ガスの加熱温度を調節するための連動弁３０
が設けられている。インシネレータ８の焼却排ガスは、
第１の熱交換器１２と第２の熱交換！Ｉ２６で排熱を回
収された後、合流し経路１０Ｃを経て煙突３２から大気
中に放散される。In this way, the incineration exhaust gas discharge path of the incinerator 8 is branched into two systems: a path 10A connected to the first heat exchanger 12 and a path 10B connected to the second heat exchanger 26. In the path 10A, an interlocking valve 28 is provided to control the temperature of the heated air output from the first heat exchanger 12, and in the path 10B, the heating temperature of the furnace exhaust gas supplied to the incinerator 8 is adjusted. Interlocking valve 30 for
is provided. Incinerator 8 incineration exhaust gas is
First heat exchanger 12 and second heat exchange! After the exhaust heat is recovered at I26, it is radiated into the atmosphere from the chimney 32 through the convergent path 10C.
乾燥焼付炉６の排ガスは経路３４に設けられたブロワ３
６．流量計３８．流量調節弁４０．第２の熱交換器２６
を経て加熱されインシネレータ８に供給される。The exhaust gas from the drying and baking furnace 6 is passed through the blower 3 installed in the path 34.
6. Flow meter 38. Flow control valve 40. Second heat exchanger 26
It is then heated and supplied to the incinerator 8.
また、インシネレータ８で炉排ガスを焼却するために燃
料４２が流量計４４．流Ｉ！ｌ！ｉ節弁４６を介してバ
ーナ４８に供給され燃焼し、乾燥焼付炉６から供給され
る炉排ガスを加熱する。Further, in order to incinerate the furnace exhaust gas in the incinerator 8, the fuel 42 is supplied to the flow meter 44. Style I! l! It is supplied to the burner 48 via the i-node valve 46 and combusted, thereby heating the furnace exhaust gas supplied from the drying and baking furnace 6.
以上説明したように、インシネレータ８の焼却排ガスは
有効に利用され、インシネレータ８で消費する燃料を削
減しているが、この従来法には次の如き欠点がある。As explained above, the incineration exhaust gas of the incinerator 8 is effectively used to reduce the amount of fuel consumed by the incinerator 8, but this conventional method has the following drawbacks.
すなわち第２図に示す従来技術では、有ｍ溶剤塗布量が
少ない場合は、インシネレータ８で焼却処理される乾燥
焼付炉６からの炉排ガス量が減少するので、インシネレ
ータ８の焼却排ガスは、経路１０Ａを経て第１の熱交換
器１２を介して乾燥焼付炉６へ供給される清浄な空気を
加熱するのにほとんど消費され、乾燥焼付炉６からイン
シネレータ８へ供給される炉排ガスの加熱をするまでに
は至らない、このため、インシネレータ８の燃料使用量
が増加すると共に第２の熱交換器２６が有効利用できな
い、仮に第２の熱交換器２６を有効利用するため、乾燥
焼付炉６からインシネレータ８へ供給する炉排ガス量を
必要以上に増加させて、インシネレータ８の焼却排ガス
で乾燥焼付炉６からの炉排ガスを加熱してもインシネレ
ータ８で焼却する炉排ガス量が増加するので、結果とし
てインシネレータ８の燃料使用量は逆に多くなる。この
ため、系としての熱効率が悪くなるのは避けられなかっ
た。That is, in the prior art shown in FIG. 2, when the amount of solvent applied is small, the amount of furnace exhaust gas from the drying and baking furnace 6 that is incinerated by the incinerator 8 decreases, so the incineration exhaust gas from the incinerator 8 is routed through the path 10A. Most of the air is consumed to heat the clean air that is supplied to the drying and baking furnace 6 via the first heat exchanger 12 until heating the furnace exhaust gas that is supplied from the drying and baking furnace 6 to the incinerator 8. Therefore, the amount of fuel used by the incinerator 8 increases and the second heat exchanger 26 cannot be used effectively. Even if the amount of furnace exhaust gas supplied to the incinerator 8 is increased more than necessary and the furnace exhaust gas from the drying and baking furnace 6 is heated by the incineration exhaust gas of the incinerator 8, the amount of furnace exhaust gas to be incinerated by the incinerator 8 will increase. 8, the amount of fuel used increases. For this reason, it was inevitable that the thermal efficiency of the system would deteriorate.
〈発明が解決しようとする課題〉
本発明の目的は有機溶剤の塗布量が少ない場合でも、イ
ンシネレータの燃料消費量を低減できる塗料乾燥焼付炉
の操業方法を提供することである。<Problems to be Solved by the Invention> An object of the present invention is to provide a method for operating a paint drying and baking furnace that can reduce the amount of fuel consumed by the incinerator even when the amount of organic solvent applied is small.
く課題を解決するための手段〉
本発明は、塗料を付着させたストリップ又はシートを乾
燥焼付炉に連続的又は断続的に通板し、発生した有機溶
剤蒸発ガスを含む炉排ガスをインシネレータへ導き含有
する有機溶剤蒸発ガスを燃料により焼却する塗料乾燥焼
付炉の操業方法において、該インシネレータの焼却排ガ
スの排出経路に設けた第１の熱交換器で加熱する該乾燥
焼付炉からの排ガス量として、該乾燥焼付炉内の有機溶
剤蒸発ガス濃度を安全上必要な濃度以下に保つために該
インシネレータへ送給し再び該乾燥焼付炉へ戻さない非
循環ガス量と再び該乾燥焼付炉へ戻してストリップ又は
シートの乾燥焼付に使用する循環ガス量を合わせたガス
量とし、前者は該インシネレータで焼却処理し、後者は
該第１の熱交換器の下流側に設けた第２の熱交換器によ
って加熱した清浄な加熱空気と混合し、再び該乾燥焼付
炉へ送給することを特徴とする塗料乾燥焼付炉の操業方
法である。Means for Solving the Problems> The present invention involves continuously or intermittently passing a strip or sheet coated with a paint through a drying and baking furnace, and guiding the generated furnace exhaust gas containing organic solvent evaporation gas to an incinerator. In a method of operating a paint drying and baking furnace that incinerates the contained organic solvent evaporated gas with fuel, the amount of exhaust gas from the drying and baking furnace heated by a first heat exchanger provided in the incineration exhaust gas exhaust path of the incinerator, In order to keep the organic solvent evaporation gas concentration in the drying and baking furnace below the concentration required for safety, an amount of non-circulating gas that is sent to the incinerator and not returned to the drying and baking furnace and a strip that is returned to the drying and baking furnace again. Alternatively, the amount of gas is the sum of the amount of circulating gas used for drying and baking the sheet, and the former is incinerated by the incinerator, and the latter is heated by the second heat exchanger installed downstream of the first heat exchanger. This method of operating a paint drying and baking furnace is characterized in that the mixture is mixed with clean heated air that has been heated and then sent to the drying and baking furnace again.
〈作 用〉
第１図は本発明の操業方法の一実施例を説明する系統図
であるが、これに基づき本発明を説明する。<Function> FIG. 1 is a system diagram illustrating one embodiment of the operating method of the present invention, and the present invention will be explained based on this.
本発明に係る塗料乾燥焼付炉の操業方法では有８１？８
剤の塗布量に関係なく、インシネレータ８の焼却排ガス
の排出経路５０に設けた第１の熱交換器５２で加熱する
乾燥焼付炉６からのガス量として、乾燥焼付炉６内の有
機溶剤蒸発ガス濃度を安全上必要な濃度以下に保つため
に必要な乾燥焼付炉６からの炉排ガス量及び再び乾燥焼
付炉６へ戻してストリップ又はシートの乾燥焼付に使用
する循環ガス量の一部を合わせたガス量とし、これを加
熱して、次いで前者はインシネレータ８で焼却するので
インシネレータの燃料使用量が少なくなる。In the method of operating the paint drying and baking oven according to the present invention,
Regardless of the amount of the agent applied, the amount of gas from the drying and baking furnace 6 that is heated by the first heat exchanger 52 provided in the incineration exhaust gas exhaust path 50 of the incinerator 8 is the organic solvent evaporated gas in the drying and baking furnace 6. The amount of furnace exhaust gas from the drying and baking furnace 6 necessary to keep the concentration below the concentration required for safety, and a part of the circulating gas amount that is returned to the drying and baking furnace 6 and used for drying and baking the strip or sheet are combined. The amount of gas is heated, and then the former is incinerated in the incinerator 8, so the amount of fuel used by the incinerator is reduced.
また、後者は第１の熱交換器５２の下流側に設けた第２
の熱交換器５８によって加熱した清浄な加熱空気と混合
し、乾燥焼付炉６の温度をコントロールする流量調節弁
２２に供給され循環ブロワ２４を介して再び乾燥焼付炉
６へ送給するので、インシネレータの燃焼排ガス顕熱を
有効に回収することができる。すなわち有ａ溶剤の塗布
量が少なく、有機溶剤の蒸発ガス量が少ない場合には、
後者の循環ガス量を増やすことができるので、燃焼排ガ
スの顕熱をさらに有効に回収することができる。Moreover, the latter is a second heat exchanger provided downstream of the first heat exchanger 52.
The incinerator is mixed with clean heated air heated by the heat exchanger 58 of The sensible heat of combustion exhaust gas can be effectively recovered. In other words, if the amount of a-containing solvent applied is small and the amount of evaporated gas of the organic solvent is small,
Since the amount of the latter circulating gas can be increased, the sensible heat of the combustion exhaust gas can be recovered more effectively.
回連すれば、本発明ではインシネレータ８の焼却排ガス
の排出経路５０には第１の熱交換器５２が設けられ、こ
こで加熱された乾燥焼付炉６からの排ガスは、乾燥焼付
炉６内の有機溶剤蒸発ガス濃度を安全上必要な濃度以下
に保つために乾燥焼付炉６へ再循環させないガスと再び
乾燥焼付炉６へ戻してストリップ又はシートの乾燥焼付
に使用する循環ガスとに分けられる。前者の炉排ガスは
インシネレータ８へ供給する量を流ｆｆｌｉＰｌ節弁５
４により調節している。このｉＪ１節は流量計５６から
の信号により行われる。また、後者、すなわち乾燥焼付
炉６への循環ガスの一部は第１の熱交換器５２の下流側
に設けた第２の熱交換器５８によって加熱された清浄な
加熱空気と混合され、乾燥焼付炉６の温度をコントロー
ルする流ｆｉｔｆｕ１節弁２２に供給され、循環ブロワ
２４を介して乾燥焼付炉６に送給され塗料の乾燥焼付を
行う、すなわち、乾燥焼付炉６から直接循環ブロワ２４
へ供給する乾燥焼付炉６の循環ガス量は第１の熱交換器
５２で加熱されて再び乾燥焼付炉６へ戻った分少なくで
きる。In other words, in the present invention, a first heat exchanger 52 is provided in the incineration exhaust gas discharge path 50 of the incinerator 8, and the exhaust gas from the drying and baking furnace 6 heated here is transferred to the exhaust gas in the drying and baking furnace 6. In order to keep the organic solvent evaporated gas concentration below the concentration required for safety, the gas is divided into two types: one is not recirculated to the drying and baking furnace 6, and the other is a circulating gas that is returned to the drying and baking furnace 6 and used for drying and baking the strip or sheet. The amount of the former furnace exhaust gas to be supplied to the incinerator 8 is controlled by the flow ffliPl control valve 5.
It is adjusted by 4. This iJ1 clause is performed by a signal from the flowmeter 56. In addition, the latter, that is, a part of the circulating gas to the drying and baking furnace 6 is mixed with clean heated air heated by the second heat exchanger 58 provided downstream of the first heat exchanger 52, and is dried. The flow that controls the temperature of the baking furnace 6 is supplied to the control valve 22, and is sent to the drying baking furnace 6 via the circulation blower 24 to dry and bake the paint, that is, directly from the drying baking furnace 6 to the circulation blower 24.
The amount of circulating gas supplied to the drying and baking furnace 6 can be reduced by the amount of gas that is heated in the first heat exchanger 52 and returned to the drying and baking furnace 6.
一方、第２の熱交換器５日に供給する空気の除塵を行う
ため、フィルター１４が設けられこの後段に清浄空気の
流量を１１節するための空気流Ｎ調節弁１６が設けられ
、更に該ｓｍ 節弁１６よりの清浄空気を第２の熱交換
器５８へ導入するためにブロワ１８が設けられている。On the other hand, in order to remove dust from the air supplied to the second heat exchanger 5, a filter 14 is provided, and an air flow N control valve 16 is provided downstream of the filter 14 to control the flow rate of clean air to 11 sections. A blower 18 is provided to introduce clean air from the sm moderation valve 16 into the second heat exchanger 58 .
またインシネレータ８の焼却排ガスは第１の熱交換器５
２と第２の熱交換器５日で排熱を回収された後、経路５
０を経て煙突３２から大気中に放散される。乾燥焼付炉
６からのガス、すなわちインシネレータ８で焼却処理す
る炉排ガス及び乾燥焼付炉６の循環ガスの一部を合わせ
たものは経路３４に設けられたブロワ３６．流量計３８
．流量劇節弁４０を経て、第１の熱交換器５２に供給さ
れる。Furthermore, the incineration exhaust gas from the incinerator 8 is transferred to the first heat exchanger 5.
2 and the second heat exchanger 5 days after recovering the waste heat, route 5
0 and is emitted into the atmosphere from the chimney 32. The gas from the drying and baking furnace 6, that is, the combination of the furnace exhaust gas to be incinerated in the incinerator 8 and a part of the circulating gas of the drying and baking furnace 6 is passed through a blower 36. Flowmeter 38
．． It is supplied to the first heat exchanger 52 via the flow control valve 40.
また、インシネレータ８で炉排ガスを焼却するために燃
料４２が流量計４４．流量！１１節弁４６を介してバー
ナー４８に供給され燃焼し、乾燥焼付炉６から供給され
る炉排ガスを加熱する。Further, in order to incinerate the furnace exhaust gas in the incinerator 8, the fuel 42 is supplied to the flow meter 44. Flow rate! It is supplied to the burner 48 via the 11-node valve 46 and combusted, thereby heating the furnace exhaust gas supplied from the drying and baking furnace 6.
なお、上述した本発明の例では第１の熱交換器５２で加
熱した乾燥焼付炉６への循環ガスの一部と第２の熱交換
器５８によって加熱した清浄な加熱空気は混合して乾燥
焼付炉６の温度をコントロールするｉｍ 調節弁２２に
供給し、循環ブロワ２４を介して乾燥焼付炉６へ送給す
るようにしたが、乾燥焼付炉６の循環ガスの一部と加熱
したン＾浄な加熱空気は別りに流量調節して循環ブロワ
２４で乾燥焼付炉６へ送給してもよい、この場合、乾燥
焼付炉６の温度コントロールは、前者の乾燥焼付炉６の
循環ガスの一部で行い、後者の加熱した清浄な加熱空気
はインシネレータ８で焼却処理した炉排ガス量に見合う
量を乾燥焼付炉６へ供給するようにコントロールする。In the example of the present invention described above, a part of the circulating gas heated by the first heat exchanger 52 to the drying and baking furnace 6 and the clean heated air heated by the second heat exchanger 58 are mixed and dried. It was designed to be supplied to the im control valve 22 that controls the temperature of the baking furnace 6 and sent to the drying baking furnace 6 via the circulation blower 24, but it was heated with a part of the circulating gas of the drying baking furnace 6. The clean heated air may be separately adjusted in flow rate and sent to the drying and baking furnace 6 by the circulation blower 24. In this case, the temperature control of the drying and baking furnace 6 is controlled by the circulating gas of the former drying and baking furnace 6. The latter heated clean heated air is controlled so as to be supplied to the drying and baking furnace 6 in an amount corresponding to the amount of furnace exhaust gas incinerated by the incinerator 8.
〈発明の効果〉
本発明によれば、有機溶剤塗布用に関係なく、乾燥焼付
炉内の有機溶剤薄光ガス濃度を安全上必要な濃度以下に
保つために必要な乾燥焼付炉からの炉排ガス量と再び乾
燥焼付炉へ戻してストリップ又はシートの乾燥焼付に使
用する循環ガス量を合わせたガス量をインシネレータの
焼却排ガスの排出経路に設けた第１の熱交換器５２によ
って加熱した後、前者はインシネレータで焼却できるの
で、インシネレータの燃料使用量を少なくすることがで
きる。また、後者は、第１の熱交換器の下流側に設けた
第２の熱交換器によって加熱された清浄な加熱空気と混
合され乾燥焼付炉の熱源として使用できるので、系とし
ての熱効率を良くすることができる。<Effects of the Invention> According to the present invention, the furnace exhaust gas from the drying and baking furnace, which is necessary for keeping the organic solvent light gas concentration in the drying and baking furnace below the concentration required for safety, regardless of whether it is used for organic solvent coating. The first heat exchanger 52 installed in the incineration exhaust gas exhaust path of the incinerator heats the gas amount, which is the sum of the amount of circulating gas and the amount of circulating gas that is returned to the drying and baking furnace and used for drying and baking the strip or sheet. can be incinerated by the incinerator, reducing the amount of fuel used by the incinerator. In addition, the latter can be mixed with clean heated air heated by the second heat exchanger installed downstream of the first heat exchanger and used as a heat source for the drying and baking furnace, improving the thermal efficiency of the system. can do.
第１図は、本発明の詳細な説明する系統図、第２図は、
従来の操業方法を説明する系統図である。
２・・・通板材、
８・・・インシネレータ、
１４・・・フィルター
２４・・・循環ブロワ、
４８・・・バーナ、
５８・・・第２の熱交換器。
６・・・乾燥焼付炉、
１２・・・第１の熱交換器、
２２・・・流量調節弁、
２６・・・第２の熱交換器、
５２・・・第１の熱交換器、FIG. 1 is a system diagram explaining the present invention in detail, and FIG.
FIG. 2 is a system diagram illustrating a conventional operating method. 2... Threading material, 8... Incinerator, 14... Filter 24... Circulation blower, 48... Burner, 58... Second heat exchanger. 6... Drying baking furnace, 12... First heat exchanger, 22... Flow control valve, 26... Second heat exchanger, 52... First heat exchanger,
Claims (1)
連続的又は断続的に通板し、発生した有機溶剤蒸発ガス
を含む炉排ガスをインシネレータへ導き含有する有機溶
剤蒸発ガスを燃料により焼却する塗料乾燥焼付炉の操業
方法において、該インシネレータの焼却排ガスの排出経
路に設けた第１の熱交換器で加熱する該乾燥焼付炉から
の排ガス量として、該乾燥焼付炉内の有機溶剤蒸発ガス
濃度を安全上必要な濃度以下に保つために該インシネレ
ータへ送給し再び該乾燥焼付炉へ戻さない非循環ガス量
と再び該乾燥焼付炉へ戻してストリップ又はシートの乾
燥焼付に使用する循環ガス量を合わせたガス量とし、前
者は該インシネレータで焼却処理し、後者は該第１の熱
交換器の下流側に設けた第２の熱交換器によって加熱し
た清浄な加熱空気と混合し、再び該乾燥焼付炉へ送給す
ることを特徴とする塗料乾燥焼付炉の操業方法。Paint drying involves passing a strip or sheet coated with paint through a drying and baking furnace continuously or intermittently, and directing the furnace exhaust gas containing evaporated organic solvent gas to an incinerator, where the organic solvent evaporated gas contained therein is incinerated using fuel. In the method of operating the baking furnace, the concentration of organic solvent evaporated gas in the drying baking furnace is determined to be safe, as the amount of exhaust gas from the drying baking furnace heated by the first heat exchanger provided in the incineration exhaust gas discharge path of the incinerator. In order to keep the concentration below the required concentration, the amount of non-circulating gas that is sent to the incinerator and not returned to the drying and baking furnace is combined with the amount of circulating gas that is returned to the drying and baking furnace and used for drying and baking the strip or sheet. The former is incinerated by the incinerator, and the latter is mixed with clean heated air heated by the second heat exchanger installed downstream of the first heat exchanger, and then the dry baking process is performed again. A method of operating a paint drying and baking furnace characterized by feeding the paint to the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29236388A JP2721370B2 (en) | 1988-11-21 | 1988-11-21 | Operating method of paint drying baking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29236388A JP2721370B2 (en) | 1988-11-21 | 1988-11-21 | Operating method of paint drying baking furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02139067A true JPH02139067A (en) | 1990-05-29 |
| JP2721370B2 JP2721370B2 (en) | 1998-03-04 |
Family
ID=17780836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29236388A Expired - Lifetime JP2721370B2 (en) | 1988-11-21 | 1988-11-21 | Operating method of paint drying baking furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2721370B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997012690A1 (en) * | 1995-10-03 | 1997-04-10 | Taikisha Ltd. | Paint drying oven |
| US5823767A (en) * | 1995-10-04 | 1998-10-20 | Taikisha Ltd | Paint drying furnace |
| CN102906522A (en) * | 2010-02-01 | 2013-01-30 | 艾森曼股份公司 | device for drying items |
-
1988
- 1988-11-21 JP JP29236388A patent/JP2721370B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997012690A1 (en) * | 1995-10-03 | 1997-04-10 | Taikisha Ltd. | Paint drying oven |
| US5868562A (en) * | 1995-10-03 | 1999-02-09 | Kaikisha Ltd. | Paint drying furnace |
| US5823767A (en) * | 1995-10-04 | 1998-10-20 | Taikisha Ltd | Paint drying furnace |
| CN102906522A (en) * | 2010-02-01 | 2013-01-30 | 艾森曼股份公司 | device for drying items |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2721370B2 (en) | 1998-03-04 |
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