JPS6242793Y2 - - Google Patents
Info
- Publication number
- JPS6242793Y2 JPS6242793Y2 JP4308581U JP4308581U JPS6242793Y2 JP S6242793 Y2 JPS6242793 Y2 JP S6242793Y2 JP 4308581 U JP4308581 U JP 4308581U JP 4308581 U JP4308581 U JP 4308581U JP S6242793 Y2 JPS6242793 Y2 JP S6242793Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- burner
- drying oven
- heating furnace
- 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
Links
- 238000001035 drying Methods 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 14
- 239000003973 paint Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
- Drying Of Solid Materials (AREA)
- Coating Apparatus (AREA)
Description
【考案の詳細な説明】
本考案は自動車車体等の塗装ラインに用いる乾
燥炉装置において、加熱乾燥される塗料から発生
する有害ガスを処理し、公害防止と省エネルギ、
コスト低減を計るものである。[Detailed description of the invention] This invention is a drying furnace used in painting lines for automobile bodies, etc., to treat harmful gases generated from paint that is heated and dried, thereby preventing pollution and saving energy.
This is to reduce costs.
従来の塗装乾燥炉装置は第１図に示すように外
気と燃料とを加熱炉０１内のバーナで燃焼させ、
この燃焼により外気と乾燥炉０２内の空気の一部
とを加熱し、乾燥炉０２内へ供給する。また、乾
燥炉０２内の空気を排ガス処理装置０３を介して
大気中へ放出する。 As shown in Fig. 1, a conventional paint drying oven device burns outside air and fuel with a burner in a heating oven 01.
This combustion heats the outside air and a portion of the air in the drying oven 02, and supplies the heated air into the drying oven 02. Furthermore, the air in the drying oven 02 is released into the atmosphere via the exhaust gas treatment device 03.
したがつて、外気と一部の炉内空気とをバーナ
で加熱するため多量の燃料を必要とし、特に冬期
においては外気温が低いため特に燃料費がかさむ
不具合があつた。また、排ガス処理装置０３を設
けなければ塗料中の揮発分を処理できず、この処
理装置０３に用する費用も多額でありコスト的に
不具合であつた。 Therefore, a large amount of fuel is required to heat the outside air and a portion of the air inside the furnace using a burner, and this has the problem of increasing fuel costs, especially in winter when the outside temperature is low. In addition, the volatile matter in the paint cannot be treated unless the exhaust gas treatment device 03 is provided, and the cost for the treatment device 03 is large, which is a problem in terms of cost.
本考案は上記不具合を解消するもので、被乾燥
物の搬出入口を設けた乾燥炉、同乾燥炉の上部に
設けられた乾燥炉内空気の吸入口、同吸入口から
の空気と燃料とを燃焼させるバーナ、上記吸入口
からの空気を上記バーナにより加熱する加熱炉、
同加熱炉に循環フアンを介して接続され上記乾燥
炉の下部に設けられた吹出口、上記循環フアンに
接続され同循環フアンより送出された空気を上記
バーナに向つて吹き出すバイパスダクトを有する
ことを特徴とする塗装乾燥炉装置に係るものであ
る。 The present invention solves the above-mentioned problems, and consists of a drying oven equipped with an entrance for carrying in and out of materials to be dried, an inlet for the air inside the drying oven installed at the top of the drying oven, and an air and fuel intake port installed at the top of the drying oven. a burner for combustion; a heating furnace for heating air from the inlet with the burner;
A blower outlet connected to the heating furnace via a circulation fan and provided at the lower part of the drying furnace, and a bypass duct connected to the circulation fan and blowing air sent out from the circulation fan toward the burner. This relates to a characteristic paint drying oven device.
したがつて、乾燥炉内の空気をバーナにより加
熱炉内で加熱するため、上記空気中に含まれ被塗
装物より揮発した塗料中の溶剤を上記加熱炉内で
燃焼してしまい、従来の排ガス処理装置を設ける
必要がなく、設備費が安くなるものである。ま
た、加熱炉内には乾燥炉内の熱い空気を供給する
ため、、熱効率が良く、さらに乾燥炉内の空気を
外部へ捨てることがなく、熱エネルギのロスがな
く燃料費が安くなるものである。なお、バーナへ
の燃焼空気は乾燥炉とバーナとの間を循環するた
め酸素が欠乏する惧れがあるが、乾燥炉の両端に
設けられた搬出入口より外気は乾燥炉内へ供給さ
れるので、この外気が吸入口を介してバーナへ供
給されるので、上記酸素不足は生じないものであ
る。 Therefore, since the air in the drying furnace is heated in the heating furnace by a burner, the solvent in the paint contained in the air and volatilized from the object to be coated is burned in the heating furnace, causing the conventional exhaust gas There is no need to provide a processing device, and equipment costs are reduced. In addition, since the heating furnace is supplied with the hot air from inside the drying furnace, it has good thermal efficiency, and since the air inside the drying furnace is not discarded to the outside, there is no loss of thermal energy and fuel costs are reduced. be. Furthermore, since the combustion air to the burner is circulated between the drying oven and the burner, there is a risk of oxygen depletion, but since outside air is supplied into the drying oven through the entrances and exits provided at both ends of the drying oven. Since this outside air is supplied to the burner through the suction port, the above-mentioned oxygen shortage does not occur.
以下、本考案の一実施例について具体的に説明
する。 Hereinafter, one embodiment of the present invention will be described in detail.
第２図において、乾燥炉１はトンネル状に形成
され、被乾燥物２、例えば自動車の車体、冷蔵庫
の本体等を乾燥するもので、両端にこれらの搬出
入口３，４を設けている。吸気チヤンバ５は乾燥
炉１の天井に設けられ、下面に多数の吸入口６を
設けている。また乾燥炉１の床面に設けられた吹
出チヤンバ７は上面に吹出口８を形成している。
加熱炉９は内部に内筒１０、バーナ１１、温度検
出装置１２を有し、内筒１０は内部にバーナ１１
と温度検出装置１２の検出端とを設け、またバー
ナ１１は送気ダクト１３と燃料タンク１４とへ連
通されている。送気ダクト１３は中間部にブロア
１５を有し、吸気ダクト１６に接続されている。
吸気ダクト１６は一端を吸気チヤンバ５に他端を
加熱炉９の内壁に接続している。循環フアン１７
は吸入側を加熱炉９に、吐出側を吹出チヤンバ７
とバイパスダクト１８とに接続している。バイパ
スダクト１８は加熱炉９の内筒１０内に接続さ
れ、中間部にダンパバルブ１９を有している。ダ
ンパバルブ１９は温度検出装置１２により開閉を
制御される。 In FIG. 2, a drying oven 1 is formed in the shape of a tunnel, and is used to dry objects 2 to be dried, such as automobile bodies, refrigerator bodies, etc., and has entrances 3 and 4 at both ends. The intake chamber 5 is provided on the ceiling of the drying oven 1, and has a large number of intake ports 6 on its lower surface. Further, the blowing chamber 7 provided on the floor of the drying oven 1 has a blowing outlet 8 formed on its upper surface.
The heating furnace 9 has an inner cylinder 10, a burner 11, and a temperature detection device 12 inside, and the inner cylinder 10 has a burner 11 inside.
and a detection end of a temperature detection device 12, and the burner 11 is communicated with an air supply duct 13 and a fuel tank 14. The air supply duct 13 has a blower 15 in its middle portion, and is connected to an air intake duct 16.
The intake duct 16 is connected to the intake chamber 5 at one end and to the inner wall of the heating furnace 9 at the other end. circulation fan 17
The suction side is connected to the heating furnace 9, and the discharge side is connected to the blowout chamber 7.
and the bypass duct 18. The bypass duct 18 is connected to the inner cylinder 10 of the heating furnace 9 and has a damper valve 19 in the middle. The opening and closing of the damper valve 19 is controlled by the temperature detection device 12.
上記構成により、乾燥炉１に被乾燥物２が搬入
されると、同被乾燥物２の塗料中に含まれていた
揮発性の溶剤は乾燥炉１内の熱風により蒸発し、
塗料は乾燥する。そして、溶剤の含まれた熱風は
吸入口６から吸気チヤンバ５を通つて吸気ダクト
１６へ流入する。ブロア１５により上記吸気ダク
ト１６の空気の一部が送気ダクト１３を通つてバ
ーナ１１に送られ、また燃料タンク１４から送ら
れた燃料とによりバーナ１１において上記空気は
1000〜2000℃の燃焼ガスとなる。このとき、吸気
ダクト１６内の空気は加熱炉の内に供給され、上
記燃焼ガスにより加熱される。循環フアン１７は
上記600℃に加熱された加熱炉９内の空気を吹出
チヤンバ７とバイパスダクト１８とに送り、吹出
チヤンバ７に送られた熱風は吹出口８より上方へ
吹き出し、被乾燥物２を乾燥させる。また、バイ
パスダクト１８に送られた熱風はダンパバルブ１
９を介して内筒１０内に送られ、燃焼ガスにより
約600℃に加熱される。そして、乾燥炉１内に被
塗装物２の数が減少して熱負荷が低減され吸気ダ
クト１６内の空気温度が上るとバーナ１１は燃料
と空気とを絞り、発熱量を低下させる。 With the above configuration, when the material to be dried 2 is carried into the drying oven 1, the volatile solvent contained in the paint of the material to be dried 2 is evaporated by the hot air inside the drying oven 1.
The paint dries. The hot air containing the solvent then flows from the suction port 6 through the suction chamber 5 into the suction duct 16. A part of the air in the intake duct 16 is sent to the burner 11 through the air supply duct 13 by the blower 15, and the air is sent to the burner 11 by the fuel sent from the fuel tank 14.
It becomes combustion gas at 1000-2000℃. At this time, the air in the intake duct 16 is supplied into the heating furnace and heated by the combustion gas. The circulation fan 17 sends the air in the heating furnace 9 heated to 600° C. to the blow-off chamber 7 and the bypass duct 18, and the hot air sent to the blow-off chamber 7 is blown upward from the blow-off port 8 to dry the material 2. Dry. In addition, the hot air sent to the bypass duct 18 is supplied to the damper valve 1
9 into the inner cylinder 10 and heated to approximately 600°C by combustion gas. Then, when the number of objects 2 to be coated in the drying oven 1 decreases, the heat load is reduced, and the air temperature in the intake duct 16 rises, the burner 11 throttles the fuel and air, reducing the amount of heat generated.
又、上記熱負荷の減少によりバーナ１１を絞る
と円筒内の温度が低下し、これを温度検出装置１
２が検知してダンパバルブ１９を閉じる方向に作
動させ、加熱炉９からバイパスダクト１８を介し
て円筒１０内への熱風の戻り量を減少させ、熱風
の乾燥炉１への供給量を増大させる。 Furthermore, when the burner 11 is throttled down due to the reduction in the heat load, the temperature inside the cylinder decreases, which is detected by the temperature detection device 1.
2 is detected and operates the damper valve 19 in the closing direction, reducing the amount of hot air returned from the heating furnace 9 into the cylinder 10 via the bypass duct 18, and increasing the amount of hot air supplied to the drying furnace 1.
さらに、吸気ダクト１６内の空気温度が下がる
とバーナ１１への燃料の供給、空気の供給を増加
させて発熱量を増加させる。 Furthermore, when the air temperature in the intake duct 16 decreases, the supply of fuel and air to the burner 11 is increased to increase the amount of heat generated.
したがつて、バーナ１１の燃焼用空気として乾
燥炉１内の空気を使用するので、燃焼用空気が予
め加熱されているため、バーナ１１の燃焼効率が
向上する。 Therefore, since the air in the drying furnace 1 is used as the combustion air for the burner 11, the combustion efficiency of the burner 11 is improved because the combustion air is heated in advance.
また、加熱炉９へ供給される空気が乾燥炉１内
の加熱されたものであるため、外気を直接使用し
ないので、外気温が低下してもバーナ１１の燃料
消費量を増大させる必要がないものである。 Furthermore, since the air supplied to the heating furnace 9 is the air heated in the drying furnace 1, outside air is not used directly, so there is no need to increase the fuel consumption of the burner 11 even if the outside temperature drops. It is something.
さらに、乾燥炉１内の溶剤を含んだ空気は外部
へ捨てられず、乾燥炉１から吸気ダクト１６を介
して加熱炉９に入り、ここでバーナ１１の燃焼ガ
スにより約600℃に加熱されて上記空気と反応し
H20とCO2とに分解されるので特別な排気処理装
置が不要になり設備費及び排気処理費用がいらな
いものである。 Furthermore, the air containing the solvent in the drying furnace 1 is not discharged to the outside, but enters the heating furnace 9 from the drying furnace 1 through the intake duct 16, where it is heated to about 600°C by the combustion gas of the burner 11 and reacts with the above air.
Since it is decomposed into H20 and CO2, no special exhaust gas treatment equipment is required, and no equipment costs or exhaust gas treatment costs are required.
加えて、加熱炉９の600℃に加熱された空気の
一部をバイパスダクト１８を介して加熱炉９に戻
しているため、加熱炉９内はバイパスダクト１８
からの加熱空気とバーナ１１の燃焼熱により600
℃に保たれているので、バーナ１１の燃料消費量
を低減できるものである。 In addition, since a part of the air heated to 600°C in the heating furnace 9 is returned to the heating furnace 9 via the bypass duct 18, the inside of the heating furnace 9 is connected to the bypass duct 18.
600 by the heated air from and the combustion heat of burner 11.
℃, the fuel consumption of the burner 11 can be reduced.
また、乾燥炉１の熱負荷が低減されて乾燥炉１
の温度が上昇したときに、バーナ１１への供給燃
料量を低減して、加熱炉９内の温度を低下させる
が、この作動により加熱炉９内の温度が一定値以
下になると、ダンパバルブ１９を閉にしバイパス
ダクト１８から加熱炉９への高温空気の戻りを遮
断して循環フアン１７からの吐出高温空気の全量
を乾燥炉１へ送り、バーナ１１への燃料供給を増
加させることなく、乾燥炉１への高温空気の供給
量不足による乾燥炉１の温度低下を防止する。 In addition, the heat load on the drying oven 1 is reduced, and the drying oven 1
When the temperature of the heating furnace 9 rises, the amount of fuel supplied to the burner 11 is reduced to lower the temperature inside the heating furnace 9. However, when the temperature inside the heating furnace 9 falls below a certain value due to this operation, the damper valve 19 is closed. By closing the bypass duct 18 and blocking the return of high-temperature air to the heating furnace 9, the entire amount of high-temperature air discharged from the circulation fan 17 is sent to the drying furnace 1, without increasing the fuel supply to the burner 11. To prevent the temperature of the drying oven 1 from decreasing due to insufficient supply of high-temperature air to the drying oven 1.
なお、上記実施例において、バイパスダクト１
８を内筒１０へ接続し被塗装物２から揮発した溶
剤を燃焼させていたが、このバイパスダクト１８
を酸化触媒に接続し、上記溶剤を触媒により燃焼
させることもできる。このときには触媒での処理
空気温度が300〜350℃と低いためバイパスダクト
１８の風量を増加して溶剤の処理効率を向上でき
る。 In addition, in the above embodiment, the bypass duct 1
8 was connected to the inner cylinder 10 to burn the solvent volatilized from the object 2 to be coated, but this bypass duct 18
It is also possible to connect the solvent to an oxidation catalyst and combust the solvent by the catalyst. At this time, since the temperature of the air treated with the catalyst is as low as 300 to 350°C, the air volume of the bypass duct 18 can be increased to improve the solvent treatment efficiency.
また、上記実施例では加熱炉９は直接炉である
が、間接炉または輻射併用直接炉でも同様の作用
効果を得られるものである。 Furthermore, although the heating furnace 9 is a direct furnace in the above embodiment, similar effects can be obtained with an indirect furnace or a direct furnace combined with radiation.
第１図は従来の乾燥装置を示す説明図、第２図
は本考案の一実施例を示す回路図である。
１：乾燥炉、５：吸気チヤンバ、７：吹出チヤ
ンバ、９：加熱炉、１１：バーナ、１７：循環フ
アン、１８：バイパスダクト。
FIG. 1 is an explanatory diagram showing a conventional drying device, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. 1: drying oven, 5: intake chamber, 7: blowout chamber, 9: heating furnace, 11: burner, 17: circulation fan, 18: bypass duct.
Claims (1)
の上部に設けられた乾燥炉内空気の吸入口、同吸
入口からの空気と燃料とを燃焼させるバーナ、上
記吸入口からの空気を上記バーナにより加熱する
加熱炉、同加熱炉に循環フアンを介して接続され
上記乾燥炉の下部に設けられた吹出口、上記循環
フアンに接続され同循環フアンより送出された空
気を上記バーナに向つて吹き出すバイパスダクト
を有することを特徴とする塗装乾燥炉装置。 A drying oven with an entrance for carrying in and out of the material to be dried, an inlet for the air inside the drying oven provided at the top of the drying oven, a burner that burns the air and fuel from the inlet, and a burner that burns the air and fuel from the inlet. A heating furnace heated by the burner, an air outlet connected to the heating furnace via a circulation fan and provided at the bottom of the drying furnace, and an air outlet connected to the circulation fan that directs the air sent out from the circulation fan to the burner. A paint drying oven device characterized by having a bypass duct that blows out air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4308581U JPS6242793Y2 (en) | 1981-03-27 | 1981-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4308581U JPS6242793Y2 (en) | 1981-03-27 | 1981-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57156172U JPS57156172U (en) | 1982-10-01 |
| JPS6242793Y2 true JPS6242793Y2 (en) | 1987-11-02 |
Family
ID=29840086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4308581U Expired JPS6242793Y2 (en) | 1981-03-27 | 1981-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6242793Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5235757A (en) * | 1991-08-29 | 1993-08-17 | Abb Flakt, Inc. | Method and apparatus for distributing airflow in a paint baking oven convection zone |
| KR101475429B1 (en) * | 2012-05-15 | 2014-12-23 | 주식회사 엘지화학 | Flow Controller of Drying Oven with Automatic Air Charge for Manufacturing Secondary Battery |
-
1981
- 1981-03-27 JP JP4308581U patent/JPS6242793Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57156172U (en) | 1982-10-01 |
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