JPH08150365A - Coated material drying method and coated material drying equipment - Google Patents

Abstract

PURPOSE: To suppress loss of heat and to reduce the requisite energy by positioning a coated material discharged from a drying furnace and its conveyor in a heat insulating chamber, radiating the heat into the air in the chamber and cooling the coated material. CONSTITUTION: The coating part of a coated material W is dried in a high-temp. atmosphere in a drying furnace 2, and the dried coated material W discharged from the furnace 2 is cooled. In this case, a surrounding wall 5 is arranged to form a heat insulating chamber 6 between the wall 2W and the furnace 2, and the heat of the coated material W discharged from the furnace 2 and its conveyor is radiated into the air in the chamber 6 to cool the material W. Besides, an automatic conveyor line ro for the coated material W discharged from the furnace 2 is preferably extended into the chamber 6. Further, a preheating air blowing means is preferably furnished to suck the air in the chamber 6 and to blow the sucked air against the coated material W and its conveyor to be introduced into the furnace 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating material drying method in which a coating composition for a coating material is dried in a high-temperature atmosphere in a drying furnace, and the dried coating material carried out from the drying furnace is cooled. The present invention relates to a coating material drying equipment used for the method and the coating material drying method.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, cooling treatment of a dried coated article carried out from a drying furnace is performed.
A cooling chamber R is formed in such a manner that the cooling chamber R is arranged in parallel with the coating material carry-out port 2b of the drying furnace 2 and is juxtaposed to the drying furnace 2, and the room air in the cooling chamber R is discharged to the outside of the system by a cooling chamber exhaust fan Fe. However, in the cooling chamber R, the cooling air introduced from the outside is blown by the blower N to the discharged coating material W from the drying furnace 2 (the automobile body in this example).
The coated article W after this drying treatment was cooled.
In the figure, Fs is a cooling chamber air supply fan that supplies cooling air to the blower N, and fi is a filter that purifies cooling air (for example, outside air). Further, 1 is a conveyor type transfer device for transferring the coating material W from the drying furnace 2 to the cooling chamber R at a predetermined transfer interval, 3 is a combustion device for heating the furnace for maintaining a high temperature atmosphere in the drying furnace 2, and 4 is drying. This is a combustion device for exhaust gas treatment that incinerates the contained substances such as paint solvent in the exhaust air from the furnace 2 to purify the exhaust air from the drying furnace 2.

[0003]

However, in the conventional drying method and drying equipment as described above, the following (a), (b)
However, there was a problem that the heat loss of the entire equipment was large, and there was room for improvement in terms of economic efficiency and energy saving. (B) The coating material W and the transporting tool for the coating material W are carried out from the drying furnace 2 in a high temperature state, and a large amount of heat carried out from the drying furnace 2 as the heat held by the carried-out coating material W and the transporting tool for it is In the cooling process in the cooling chamber R, the exhaust air from the cooling chamber R is discarded outside the system. (B) Although a heat insulating structure is adopted for the oven wall 2w of the drying oven 2, heat transfer from the oven raises the oven wall temperature to a high temperature, which causes a large temperature difference between the oven wall 2w and the surrounding space. The amount of heat released from the furnace wall 2w to the surrounding space is large.

In view of the above circumstances, the objects of the present invention are as follows. An object of the first invention is to suppress the heat radiation from the furnace wall by effectively utilizing the heat taken out from the drying furnace to reduce the required energy. An object of the second invention is to provide a coating material drying facility for carrying out the above-mentioned first invention with automatic conveyance of the coating material. An object of the present third invention is to effectively suppress heat radiation from the furnace wall over a wide range in the longitudinal direction of the drying furnace. An object of the fourth invention is to effectively suppress heat radiation from the furnace wall over a wide area of the furnace wall in a uniform state. An object of the present fifth invention is to further effectively reduce the required energy by using the heat taken out from the drying furnace also for preheating the carried-in material to the drying furnace, in addition to suppressing the heat radiation from the furnace wall. There is a point to do. An object of the sixth invention is to avoid deterioration of coating quality and increase of maintenance work load due to the tar component. Similar to the fifth invention, an object of the seventh invention is to use the heat taken out of the drying furnace also for preheating the carried-in product into the drying furnace, thereby more effectively reducing the required energy. It is in.

[0005]

[Means for Solving the Problems]

[First invention] The first invention according to claim 1 is to dry a coating material for a coating material in a high-temperature atmosphere in a drying furnace and to cool the coating material after the drying processing carried out from the drying furnace. The characteristic configuration of the applied coating material drying method is that an enclosure wall is formed outside the drying furnace to form a heat insulating chamber between the drying furnace and the drying furnace, and the cooling treatment is carried out from the drying furnace. The coated article, or the carried-out coated article and a transport tool for the coated article are located in the heat insulating chamber to radiate heat to the indoor air.

[Second Invention] A second invention according to claim 2 relates to a coating material drying facility used in the method for drying a coated material according to the first invention, and its characteristic configuration is that the furnace wall is outside the drying furnace. And an enclosing wall forming a heat insulating chamber is provided between the heat insulating chamber and the heat insulating chamber, and an automatic carry-out transfer route for the discharged coated material from the drying furnace is extended to the inside of the heat insulating chamber.

[Third invention] A third invention according to claim 3 is to specify a preferred configuration in the implementation of the second invention, and the characteristic configuration thereof is that the unloading-side automatic transport path is It is arranged to extend along the longitudinal direction of the drying furnace in the heat insulating room.

[Fourth invention] A fourth invention according to claim 4 is to specify a preferred configuration for carrying out the second or third invention, and the characteristic configuration thereof is that of the inside of the heat insulation chamber. There is a stirring means for stirring the air.

[Fifth Invention] A fifth invention according to claim 5 is to specify a preferred configuration for carrying out the second, third or fourth invention, and the characteristic configuration thereof is that for the heat insulation. There is provided a preheating blower unit for sucking the indoor air of the chamber and blowing the sucked air to the load to the drying furnace.

[Sixth Invention] A sixth invention according to claim 6 is to specify a preferred configuration for carrying out the second, third, fourth or fifth invention, and its characteristic configuration is as follows. This is because a tar removal means is provided at the carry-out port of the drying furnace to remove the gas containing a tar component contained in the concave portion of the carry-out product.

[Seventh invention] A seventh invention according to claim 7 is to specify a preferred configuration for carrying out the second, third, fourth, fifth or sixth invention, and its features The constitution is that the carry-in side automatic transfer route for the paint carried in to the drying furnace is extended to the inside of the heat insulating room.

[0012]

[Action]

[Operation of First Invention] In the first invention (see FIGS. 1 to 3), the coating material W carried out from the drying furnace 2 (or the coating material W carried out and the conveying tool 1a for the same) is transferred to the drying furnace 2. By positioning it in the heat insulation chamber 6 between the furnace wall 2w and the enclosure wall 5, this carry-out coating material W (or this carry-out coating material W and the conveying tool 1a for it) is made into the indoor air of the heat insulation chamber 6. It radiates heat to the outside, and as a result, the discharged coated article W after the drying process
(Alternatively, the discharged coated article W and the conveying tool 1 for the same)
Cool a). In addition, the heat insulation chamber 6 as a temporary space for the furnace wall 2w dissipates the heat of the carried-out paint W (or the carry-out tool 1 for the carry-out paint W).
heat dissipation from a) and heat dissipation from the furnace wall 2w
As a result, the temperature difference between the oven wall 2w and the space it faces is reduced to suppress the heat radiation from the oven wall 2w, as compared with the case where the oven wall 2w of the drying oven 2 is directly exposed to the open surrounding space as in the conventional case. To do. Although the heat insulating chamber 6 has the effect of suppressing the heat radiation from the furnace wall only by raising the temperature by only radiating the heat from the furnace wall 2w, in the first aspect of the present invention, as described above, the coating carried out from the drying furnace 2 is carried out. The temperature of the heat insulation chamber 6 is raised by utilizing the heat radiation of the article W (or the heat radiation of the carry-out painted article W and the transport tool 1a corresponding thereto), in other words, the carry-out painted article W (or the carry-out painted article W). By using the heat carried out from the drying furnace 2 as the heat retained by the conveying tool 1a) and the heat, the temperature of the heat insulation chamber 6 is raised, and the heat radiation to the furnace wall itself, which is spent for raising the temperature of the heat insulation chamber 6, is also suppressed. More effectively suppresses heat dissipation from the furnace wall.

[Operation of Second Invention] In the second invention (see FIG.
(See FIG. 3), by extending the automatic transfer route ro on the unloading side for the discharged coated product W from the drying furnace 2 into the chamber of the heat insulating chamber 6, during the process of transferring the coated product on the automatic transfer route ro. The coated article W carried out from the drying furnace 2 and the carrying tool 1a for the coated article W are cooled by radiating heat to the indoor air in the heat insulation chamber 6. In addition, the indoor heat dissipation of the carry-out items W and 1a,
The heat release from the furnace wall 2w raises the temperature of the heat insulation chamber 6.
That is, according to the second aspect of the present invention, the automatic transfer route ro on the carry-out side for the carry-out coated material W from the drying furnace 2 is provided in the heat insulating chamber 6
As a mode for carrying out the above-mentioned first invention with the automatic transfer of the discharged coated article W, the above-mentioned first section is provided.
The effect of the invention is obtained.

[Operation of Third Invention] In the third invention (see FIG.
(See FIG. 3), by extending the above-mentioned unloading-side automatic transfer route ro which serves as a heat radiation route in the heat insulating chamber 6 along the longitudinal direction of the drying furnace 2 in the chamber of the heat insulating chamber 6, In the heat insulation chamber 6, the temperature rise region due to indoor heat radiation of the carried-out coating material W and the transport tool 1a corresponding thereto (that is, the temperature rise region that effectively contributes to suppression of heat radiation from the oven wall) is defined by the length of the drying oven 2. It is formed so that it can follow the direction.

[Operation of Fourth Invention] In the fourth invention (see FIG.
To FIG. 3), the room air in the heat insulation chamber 6 is stirred by the stirring means 7
Stirring prevents the occurrence of temperature unevenness in the heat insulating chamber 6 (particularly, a temperature difference in the vertical direction of the room due to rising hot air).

[Operation of Fifth Invention] In the fifth invention (see FIG.
To FIG. 3), the preheating air blowing means 8 and 9 suck in the indoor air of the heat insulating chamber 6 that becomes high temperature, and the sucked air is carried into the drying furnace 2 (that is, the carried-in coating material W, or By spraying the carried tool 1a) for the carried-in coated article W, the carried-in article is preheated, and the quantity of heat required for heating the carried-in article in the drying furnace 2 is reduced by this pre-heated article. That is, in the fifth aspect of the present invention, the heat carried out from the drying furnace 2 as the retained heat by the carry-out coated material W (or the carry-out coated material W and the carrying tool 1a for it) is used to raise the temperature of the heat insulation chamber 6 as described above. In addition to being used for suppressing the heat radiation from the furnace wall, it is also used for preheating the items W, 1a carried into the drying furnace 2.

[Operation of Sixth Invention] In the sixth invention (see FIG.
To FIG. 3), at the carry-out port 2b of the drying furnace 2, the tar component-containing gas trapped in the recess of the carry-out product (that is, the carry-out coated product W or the transport tool 1a for the carry-out coated product W) Exclusion by the excluding means 12, 13, 14 prevents the tar component from being brought into the heat insulating chamber 6 together with the discharged product W, 1a.

[Operation of Seventh Invention] In the seventh invention (see FIG. 4), the automatic transfer route ri on the carry-in side for the coating material W carried into the drying furnace 2 is extended to the inside of the heat insulating chamber 6 where the temperature becomes high. By installing the pre-heated indoor air in the heat insulation chamber 6, the coating material W carried into the drying furnace 2 and the conveying tool 1a for the same are preheated in the course of conveying the coated material in the automatic conveying route ri, and the introduced material is preheated. This reduces the amount of heat required to heat the incoming material in the drying furnace 2. That is, in the seventh invention, the fifth invention
Similar to the invention, the heat carried out from the drying furnace 2 as the retained heat by the carried-out coated product W (or the carried-out coated product W and the conveying tool 1a for the same) is used to raise the temperature of the heat insulation chamber 6 as described above. In addition to being used for suppressing heat dissipation, the automatic transfer route ri on the carry-in side is extended to the inside of the heat-insulating chamber 6 and used for preheating the carry-in items W, 1a into the drying furnace 2.

[0019]

【The invention's effect】

[Effects of the First Invention] According to the first invention, a furnace in a drying furnace is used by utilizing the heat carried out from the drying furnace by the coating material carried out from the drying furnace (or the carrying-out coating material and the conveying tool for the same). By effectively suppressing the heat radiation from the wall, the energy required for maintaining the temperature inside the drying furnace can be reduced, and the operating cost can be reduced and the energy can be saved.

[Effect of Second Invention] According to the second invention,
In the case of an equipment configuration in which a plurality of coated objects are continuously transported at a predetermined interval and dried by the operation of the first aspect of the invention accompanied by automatic transportation of the coated objects carried out from the drying oven, (1) The effect of the invention can be obtained easily and reliably.

[Effect of Third Invention] According to the third invention,
By forming the temperature rising region that effectively contributes to the suppression of the heat radiation from the furnace wall in a state along the longitudinal direction of the drying furnace, the heat radiation from the furnace wall can be effectively suppressed over a wide area in the longitudinal direction of the drying furnace.

[Effect of Fourth Invention] According to the fourth invention,
By preventing the temperature unevenness from occurring inside the heat insulating chamber, it is possible to effectively suppress the heat dissipation from the furnace wall in a state where there is no unevenness in the entire furnace wall facing the heat insulating chamber.

[Effect of Fifth Invention] According to the fifth invention,
In addition to using the heat carried out from the drying oven (or the coating equipment carried out from this drying oven and the transport device for it) to suppress the heat radiation from the oven wall, it is also used to preheat the incoming material to the drying oven. By utilizing this to reduce the amount of heat required to heat the incoming material in the drying furnace, it is possible to more effectively reduce the energy required to maintain the temperature inside the drying furnace.

[Effect of Sixth Invention] According to the sixth invention,
It is possible to avoid that the tar component is brought into the heat insulation chamber together with the discharged product from the drying furnace, and the tar component is condensed and adhered to the wall or the coated object in the heat insulation chamber, or each part such as the transport device. As a result, it is possible to prevent the deterioration of coating quality due to the adhesion of the condensed tar component, and it is possible to reduce the maintenance work for removing the adhered tar component on the wall and the transport device.

[Effect of Seventh Invention] According to the seventh invention,
Similar to the fifth aspect of the invention described above, in addition to utilizing the heat carried out from the drying furnace by the discharged coated material from the drying furnace (or the discharged coated material and the transport device for the same) to suppress the heat radiation from the furnace wall, By reducing the amount of heat required for heating the carried-in material in the drying furnace by also preheating the carried-in material, it is possible to more effectively achieve the reduction of the energy required to maintain the temperature inside the drying furnace.

Further, the above-mentioned fifth invention for blowing the indoor air in the heat insulation chamber to the load to the drying oven, and the seventh invention for extending the automatic transfer route on the loading side to the drying oven into the chamber of the heat insulation chamber. If the invention and the invention are carried out in parallel, the preheating of the load to the drying furnace can be performed more effectively and efficiently.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1, 2 and 3, reference numeral 1 is a conveyor type conveying device for conveying a coated object W (in this example, an automobile body) while being placed on a carrier 1a, and 2 is a coated object W. Is conveyed in the furnace at a predetermined interval by the conveyor type conveying device 1, and the tunnel-shaped drying furnace 3 for drying the coating material of the coating material W in the high temperature atmosphere in the furnace is heated by the air in the furnace to be dried. A combustion device 4 for heating the furnace, which maintains the temperature inside the furnace 2 at a predetermined temperature, is an exhaust gas for purifying the exhaust air from the drying furnace 2 by incinerating the contained substances such as paint solvent in the exhaust air from the furnace. It is a combustion device for processing.

The drying furnace 2 is formed in a U-shape in which the front half tunnel-shaped portion and the rear half tunnel-shaped portion are adjacent to each other in a plan view, and the U-shaped drying furnace 2 is formed by an enclosure wall 5 made of a heat insulating material. A heat insulating chamber 6 is formed between the drying furnace 2 and the surrounding wall 5 by surrounding the whole except the carry-in / out ports 2a and 2b. The carry-in port 2a and the carry-out port 2b of the drying oven 2 are arranged at a position lower than the intermediate main body portion of the drying furnace 2 and below one end of the heat insulating chamber 6, while the carry-in port 6a of the heat insulating chamber 6 is provided. Is formed in the bottom wall portion of the heat insulating chamber 6 near the drying furnace carry-out port 2b, and the carry-out port 6b of the heat insulating chamber 6 is formed in the other side wall portion of the heat insulating chamber 6.

The conveyor type transporting apparatus 1 carries the coated article W coated in the coating booth into the furnace through the drying oven carry-in port 2a and conveys it in the oven. Carrying out from the drying furnace outlet 2b,
The coated object W carried out from the drying oven 2 is carried into the thermal insulating chamber 6 from the thermal chamber inlet 6a and transported in the thermal chamber 6, and the coated object W transported in the thermal chamber 6 Is carried out from the heat-insulating chamber carry-out port 6b to the outside and sent to the next step, and these are carried out by a series of automatic carrying paths.

In other words, as described above, the heat transfer chamber 6 is provided with the automatic transfer route ro on the discharge side for the discharged paint W from the drying furnace 2.
Of the coating material W carried out from the drying furnace 2 and the carrying tool of the conveyor type carrier device 1 for the carrying-out painted material W (in this example, the carriage 1a and the carriage 1a thereof are moved). (The drive chain portion, etc.) is cooled by radiating heat to the room air during the indoor transfer process of the heat insulating room 6,
This is the cooling process for the coated object W after the drying process. Further, the heat release chamber 6 is heated by the indoor heat radiation of the discharged material (the coating material W and the transfer tool 1a for the coating material W) from the drying oven 2 and the heat radiation from the oven wall 2w of the drying oven 2, thereby heating the oven wall 2w. And the temperature difference between the heat insulation room 6 facing it and
This suppresses the heat radiation loss from the furnace wall 2w. still,
Regarding the temperature of each part, the temperature of the coated article W carried out from the drying furnace 2 is 140 ° C., and the temperature of the open surrounding space outside the enclosure wall 5 is 10 ° C. The temperature may be about 65 ° C. as an example.

In the heat insulation chamber 6, the automatic transfer route ro on the unloading side is extended along the lengthwise direction of the drying furnace 2, so that the discharged coated article W and the transfer tool 1a for it can be provided. A temperature rising area due to indoor heat radiation (that is, a temperature rising area that effectively contributes to the suppression of heat radiation from the furnace wall) is formed along the longitudinal direction of the drying furnace 2 so that the entire length of the drying furnace 2 in the longitudinal direction is increased. Effectively suppresses heat dissipation from the furnace wall over the range. Further, 7 is a heat insulation chamber circulation fan as a stirring means for stirring the room air of the heat insulation chamber 6, and by stirring the room air of the heat insulation chamber 6 by this circulation fan 7,
The occurrence of temperature unevenness (particularly the temperature difference in the vertical direction) in the heat insulating chamber 6 is prevented, and in this example, the automatic transfer route ro on the unloading side is set along the longitudinal direction of the drying furnace 2 as described above. In cooperation with the formation, the heat dissipation from the furnace wall is effectively suppressed.

Reference numeral 8 denotes a preheating blower for blowing air to the coating material W carried into the drying furnace 2 and the conveying tool 1a for the coating material W, and 9 denotes preheating blower for sucking the indoor air of the heat insulation chamber 6 which becomes high in temperature. The preheating blower 8 and the fan 9 that are supplied to the preheater 8 suck in the high-temperature room air in the heat insulating chamber 6 and transfer the sucked air into the drying furnace 2.
A blowing unit for preheating that preheats the introduced substances W, 1a into the drying furnace 2 by spraying onto the la is constructed. Reference numeral 10 denotes a heat insulating room air supply fan that supplies the heat insulating room 6 with fresh air having an air volume corresponding to the intake air volume of the preheating fan 9.

Reference numeral 11 denotes a tar removal chamber provided at the carry-out port 2b of the drying furnace 2. In the tar removal chamber 11, indoor air is exhausted by a tar removal fan 12, and a tar component contained in the exhaust air. The cleaning air is separated and removed by the purifier 13, and the purified air from which the tar component is separated and removed is blown by the blower 14 for removing tar to the coating material W carried out from the drying furnace 2 in the tar removal chamber 11 and the carrying tool 1a for the same. That is, the fan 12 and the purifier 1 for removing these tars
The blower 3 and the blower 14 blow indoor air containing a tar component from the tar removal chamber 11 while blowing purified air onto the carry-out products W, 1a from the drying furnace 2 to remove the carry-out products W, 1a. Eliminate the gas containing the tar component that accumulates in the recess,
A tar removal means for preventing the tar component from being brought into the heat insulation chamber 6 is configured.

[Another Embodiment] As an embodiment of the seventh invention, as shown in FIG. 4, an automatic transfer route ro on the carry-out side for the carry-out coated material W from the drying furnace 2 is extended to the inside of the heat insulation chamber 6. In addition to this, the carrying-in side automatic transfer route ri for the carry-in coating object W to the drying furnace 2 is configured to extend into the inside of the heat insulation chamber 6, whereby the coating at the carry-in side automatic transfer route ri is performed. In the process of transporting the object, the coating object W carried into the drying furnace 2 and the transport tool 1a for the coated product W are heated to a high temperature in the heat insulation chamber 6
You may make it preheat with the indoor air of.

The shape of the drying oven 2 is not limited to the U-shape in plan view as in the above-mentioned embodiment, but various drying oven shapes can be adopted, such as a straight-line tunnel shape and two upper and lower tunnel-shaped portions. Alternatively, a U-shaped shape in side view or an L-shaped shape in plan view may be adopted.

In the above-described embodiment, the heat insulation chamber 6 is formed so as to surround almost the entire drying furnace 2. However, in some cases, the heat insulation chamber 6 surrounds only the portion of the drying furnace 2 where the heat radiation from the furnace wall is particularly large. 6 may be formed.

To extend the automatic transfer route ro on the discharge side for the coated product W discharged from the drying furnace 2 into the chamber of the heat insulation chamber 6, the automatic transfer route ro on the discharge side is formed into a meandering path, whereby It is also possible to secure a large heat radiation time for the transported coated object W and the transport tool 1a for it. Similarly, when the automatic transfer route ri on the carry-in side for the coating material W carried into the drying furnace 2 is extended to the inside of the heat insulation chamber 6,
The carry-in-side automatic transfer path ri is a meandering path, whereby the indoor transfer coated article W and the transfer tool 1a for the same are provided.
A large preheating time may be secured.

The stirring means for stirring the indoor air in the heat insulating chamber 6 is not limited to the outdoor circulation fan 7 as described above, but a rotary stirring blade may be arranged indoors.

In constructing the tar removal means at the carry-out port 2b of the drying furnace 2, clean gas is blown from the blower 14 to the carry-out coated material W and the conveying tool 1a for the same as in the above-mentioned embodiment, and a basket is also formed in the recess. Instead of removing the tar-containing component-containing gas, a form may be adopted in which the tar-containing component-containing gas trapped in the recess is sucked and removed by an aspirator.

The transporting device for automatically transporting the coated article W is not limited to the type for transporting the coated article W in the state where it is placed on the transporting carriage 1a as in the above-mentioned embodiment, but may be a suspended transporting type, A form in which the coated object W is placed on the conveyor belt to convey the coated object may be used.

The coating object W is not limited to the body of the automobile, and may be any other vehicle such as a casing of a vehicle other than an automobile or a home electric appliance.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a plan view showing the equipment configuration.

FIG. 2 is a side view showing the first half of the drying furnace.

FIG. 3 is a side view showing the latter half of the drying furnace.

FIG. 4 is a plan view showing another embodiment.

FIG. 5 is a side view showing a conventional example.

[Explanation of symbols]

 W Painted material 2 Drying furnace 2w Furnace wall 6 Insulation chamber 5 Enclosure wall 1a Conveyor tool ro Carry-out side automatic carrier path 7 Stirring means 8, 9 Preheating air blowing means 2b Drying furnace carry-out port 12 to 14 Burning means ri Carriage side automatic Transport route

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location F27B 9/10

Claims (7)

[Claims] 1. A drying oven (2) for coating a coating material for a coating (W).
A method for drying a coated article, which comprises drying the coated article (W) after being dried out in a high temperature atmosphere inside the drying oven (2) and cooling the coated article (W) outside the drying oven (2). An enclosure wall (5) that forms a heat insulation chamber (6) is provided between the oven wall (2w) and the coating material (W) carried out from the drying oven (2) as the cooling treatment, or A method for drying a coated article in which the carried-out coated article (W) and a transfer tool (1a) for the delivered coated article (W) are positioned in the heat insulation chamber (6) to radiate heat to indoor air. 2. The coating material drying equipment used in the coating material drying method according to claim 1, wherein a heat insulation chamber (6) is formed outside the drying furnace (2) with the furnace wall (2w). A coating material drying facility in which an enclosing wall (5) is provided, and an unloading side automatic transfer route (ro) for the unloading coating material (W) from the drying furnace (2) is extended to the inside of the heat insulation chamber (6). . 3. The coating material drying equipment according to claim 2, wherein the unloading side automatic transfer route (ro) is provided along the longitudinal direction of the drying furnace (2) inside the heat insulation chamber (6). . 4. The coating material drying equipment according to claim 2, further comprising a stirring means (7) for stirring the indoor air of the heat insulation chamber (6). 5. The indoor air in the heat insulating chamber (6) is sucked in, and the sucked air is carried into the drying furnace (2) (W,
The coating material drying equipment according to claim 2, 3 or 4, wherein a preheating blower means (8, 9) for spraying on 1a) is provided. 6. At the carry-out port (2b) of the drying furnace (2), there is provided a tar removal means (12, 13, 14) for removing the tar-bearing component-containing gas trapped in the recess of the carry-out product (W, 1a). The coated object drying equipment according to claim 2, 3, 4 or 5, which is provided. 7. A coated article (W) carried into the drying oven (2).
7. The coating material drying equipment according to claim 2, 3, 4, 5, or 6, wherein the carry-in side automatic transfer route (ri) is extended to the inside of the heat insulating chamber (6).