A constant temperature exhaust gas treatment device suitable for integrated spray painting and baking booths

Abstract

This invention belongs to the field of waste gas treatment technology, and in particular, it is a constant temperature waste gas treatment device suitable for integrated spray painting and baking booths. The device includes a spray painting and baking booth main body, with an air duct at the bottom. A flue gas treatment component and a heat pump blower are located on one side of the air duct, and the air duct is connected to the flue gas treatment component. This invention adopts a "one-in-one-out" design. When adsorption filter plate one / adsorption filter plate two approaches saturation due to adsorption of highly viscous substances, the device immediately switches to adsorption filter plate two / adsorption filter plate one for operation. Simultaneously, the high-temperature waste gas generated during the baking process (with auxiliary heating) is used to perform in-situ high-temperature desorption of the saturated adsorption filter plate one / adsorption filter plate two, achieving in-situ regeneration of activated carbon. This significantly extends the service life of the activated carbon and avoids the high consumable costs and labor maintenance costs associated with frequent replacements.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a constant temperature waste gas treatment device suitable for integrated spray painting and baking booths. Background Technology

[0002] A spray painting and baking booth (also known as a spray-baking booth) is a complete set of equipment widely used in automotive repair, combining the functions of spray painting and drying / curing. During spray painting, the booth needs to maintain a stable temperature and clean air environment, and effectively collect overspray mist; during baking, it needs to rapidly heat up and maintain a constant temperature to ensure the quality of the coating curing. For example, patent application number CN201510761166.X discloses an air-source heat pump spray painting and baking booth. In the aforementioned patent application, during the baking process, the organic solvents in the coating rapidly evaporate under high-temperature baking conditions, generating a large amount of volatile organic compounds (VOCs), with concentrations reaching several to tens of times higher than those in the spray painting stage. If these high-temperature, high-concentration VOCs are emitted directly without treatment, they will not only cause serious air pollution but may also participate in photochemical reactions in the atmosphere, forming ozone and secondary aerosols, which can damage the human respiratory system. Simultaneously, the direct emission of high-temperature exhaust gases will also cause thermal pollution to the surrounding environment.

[0003] Because paint mist is highly viscous, existing circulating desorption treatment equipment is prone to clogging the microporous structure of activated carbon used to adsorb VOCs during the process of desorbing VOCs from exhaust gas. This leads to a sharp drop in adsorption capacity, and traditional thermal regeneration methods are difficult to effectively remove these viscous residues. Activated carbon often needs to be replaced frequently, which greatly increases operating costs. Therefore, a constant temperature exhaust gas treatment device suitable for integrated paint spraying and baking booths is proposed. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this invention proposes a constant temperature exhaust gas treatment device suitable for integrated spray painting and baking rooms.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking booth, comprising a spray painting and baking booth body, an air duct at the bottom of the spray painting and baking booth body, a flue gas treatment component and a heat pump blower on one side of the air duct, the air duct being connected to the flue gas treatment component, and pipe one and pipe two being respectively connected to the flue gas treatment component and the heat pump blower, both of which are connected to the spray painting and baking booth body; A flue gas treatment assembly includes a treatment box. An inlet pipe and an outlet pipe are respectively provided on both sides of the treatment box. The air duct is connected to the inlet pipe, and the outlet pipe is connected to another pipe. An adsorption mechanism and a flow guiding mechanism are provided inside the treatment box. A reversing mechanism is provided between the adsorption mechanism and the inlet pipe. The reversing mechanism, in cooperation with the adsorption mechanism, divides the interior of the treatment box into a first treatment chamber and a second treatment chamber. By adjusting the reversing mechanism, the inlet pipe can be directly connected to both the first and second treatment chambers.

[0006] Preferably, the adsorption mechanism includes two mounting frames fixed on the inner walls of both sides of the treatment box, and a rectangular plate is detachably fixed between the two mounting frames. Adsorption filter plate one and adsorption filter plate two are embedded and fixed through the rectangular plate. A partition is fixedly installed on the inner wall of the main body of the paint spraying and baking booth near the air inlet pipe, and a rectangular outlet is opened on the partition.

[0007] Preferably, the reversing mechanism includes inclined plate one and inclined plate two fixed on the side of the partition near the adsorption mechanism. The reversing mechanism also includes inclined plate three and inclined plate four fixed on the side of the rectangular plate near the partition. The rectangular plate and the partition are rotatably mounted with the same swing plate. The reversing mechanism also includes a motor fixed on the top of the paint spraying and baking booth body. The output shaft of the motor extends rotatably into the paint spraying and baking booth body and is fixedly connected to the top center of the swing plate.

[0008] Preferably, the first and second inclined plates are arranged in a V-shape, and the rectangular outlet is located between the first and second inclined plates, while the third and fourth inclined plates are arranged in a V-shape.

[0009] Preferably, the flow guiding mechanism includes a flow divider plate slidably installed inside the main body of the spray painting and baking booth. The flow guiding mechanism also includes a linear module fixed to the top of the main body of the spray painting and baking booth. A strip-shaped hole is fixedly opened on the top of the main body of the spray painting and baking booth. A connecting block penetrating the strip-shaped hole is fixedly installed on the slider of the linear module. The bottom of the connecting block is fixedly connected to the top of the flow divider plate. Bellows baffles are fixedly installed on both sides of the connecting block. The sides of the two bellows baffles that are far apart from each other are fixedly connected to the inner walls of the two sides of the strip-shaped hole.

[0010] Preferably, exhaust vent 1 and exhaust vent 2 are respectively provided on the inner walls of both sides of the processing box. Processing chamber 1 is connected to the outside through exhaust vent 1, and processing chamber 2 is connected to the outside through exhaust vent 2. A sealing mechanism is installed on the inner walls of both sides of the main body of the spray painting and baking booth, and the two sealing mechanisms are centrally symmetrically distributed. The two sealing mechanisms are used to cover exhaust vent 1 and exhaust vent 2 respectively.

[0011] Preferably, the sealing mechanism includes a sealing plate rotatably mounted on the inner wall of the main body of the spray painting and baking booth. The sealing plate is connected to the inner wall of the main body of the spray painting and baking booth by multiple torsion spring hinges. Pull cables are fixedly installed on the top and bottom of the sealing plate, and the ends of the two pull cables away from the sealing plate are fixedly connected to a swing plate.

[0012] Preferably, the bottom of the main body of the spray painting and baking booth has two perforated panels fixedly installed through it. The two perforated panels are located in processing chamber one and processing chamber two, respectively. The bottom of the main body of the spray painting and baking booth has two opposing mounting frames fixedly installed, and each mounting frame has a storage hopper that is pulled out and slidably installed.

[0013] Compared with the prior art, the beneficial effects of the present invention are: firstly, the device.

[0014] This invention adopts a "one-in-use, one-out-of-use" design. When the first adsorption filter plate / second adsorption filter plate is close to saturation due to the adsorption of highly viscous substances, the equipment immediately switches to the second adsorption filter plate / first adsorption filter plate for operation. At the same time, the high-temperature exhaust gas generated during the baking process (with auxiliary heating) is used to perform in-situ high-temperature desorption on the saturated first adsorption filter plate / second adsorption filter plate, realizing in-situ regeneration of activated carbon, greatly extending the service life of activated carbon, and avoiding the high consumable costs and labor maintenance costs caused by frequent replacement.

[0015] When the device switches to the high-temperature desorption mode, it can directly use the high-temperature waste gas to desorb and regenerate the saturated adsorption filter plate one / adsorption filter plate two, realizing the utilization of waste heat resources. The concentrated waste gas after desorption can be recycled back into the main body of the paint spraying and baking booth. This not only completes the purification of VOCs but also recovers heat energy, avoiding the thermal pollution caused to the surrounding environment by directly emitting high-temperature waste gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room proposed in this invention. Figure 2 This is a schematic diagram of the flue gas treatment component in a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room proposed in this invention. Figure 3 This is a side sectional view of the flue gas treatment component in a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room proposed in this invention. Figure 4 This is a schematic diagram of the reversing mechanism, adsorption mechanism, flow guiding mechanism, and partition plate in a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room proposed in this invention. Figure 5This is a schematic diagram of the sealing mechanism in a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room proposed in this invention. Figure 6 This is a schematic diagram of the perforated plate, mounting frame, and storage hopper in a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room proposed in this invention. Figure 7 This invention provides a schematic diagram of the operation of the flue gas treatment component in a constant temperature exhaust gas treatment device suitable for integrated spray painting and baking booths. Figure 1 ; Figure 8 This invention provides a schematic diagram of the operation of the flue gas treatment component in a constant temperature exhaust gas treatment device suitable for integrated spray painting and baking booths. Figure 2 .

[0017] In the diagram: 1. Main body of the paint spraying and baking booth; 2. Air duct; 3. Flue gas treatment components; 4. Heat pump blower; 5. Pipe 1; 6. Pipe 2; 31. Processing box; 32. Air inlet duct; 33. Air outlet duct; 34. Reversing mechanism; 35. Adsorption mechanism; 36. Flow guiding mechanism; 37. Sealing mechanism; 38. Processing chamber one; 39. Processing chamber two; 310. Perforated plate; 311. Mounting frame; 312. Storage hopper; 313. Partition plate; 314. Rectangular outlet; 341. Inclined plate one; 342. Inclined plate two; 343. Inclined plate three; 344. Inclined plate four; 345. Swinging plate; 346. Motor; 351. Mounting frame; 352. Rectangular plate; 353. Adsorption filter plate component one; 354. Adsorption filter plate component two; 361. Diverter plate; 362. Linear module; 363. Connecting block; 364. Accordion baffle; 371. Sealing plate; 372. Torsion spring hinge; 373. Cable; 381. Exhaust vent one; 391. Exhaust vent two. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please refer to Figures 1-8The present invention provides a technical solution: a constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room, including a spray painting and baking room body 1, an air duct 2 at the bottom of the spray painting and baking room body 1, a flue gas treatment component 3 and a heat pump blower 4 on one side of the air duct 2, the air duct 2 is connected to the flue gas treatment component 3, and pipes 5 and 6 are respectively connected to the flue gas treatment component 3 and the heat pump blower 4, and both pipes 5 and 6 are connected to the spray painting and baking room body 1. The flue gas treatment component 3 includes a treatment box 31. The treatment box 31 has an air inlet pipe 32 and an air outlet pipe 33 on both sides. The air duct 2 is connected to the air inlet pipe 32, and the air outlet pipe 33 is connected to the second pipe 6. The treatment box 31 is equipped with an adsorption mechanism 35 and a flow guiding mechanism 36. A reversing mechanism 34 is provided between the adsorption mechanism 35 and the air inlet pipe 32. The reversing mechanism 34 works with the adsorption mechanism 35 to divide the interior of the treatment box 31 into a first treatment chamber 38 and a second treatment chamber 39. By adjusting the reversing mechanism 34, the air inlet pipe 32 can be directly connected to the first treatment chamber 38 and the second treatment chamber 39 respectively.

[0020] Furthermore, such as Figure 1 As shown, during operation, the heat pump blower 4 generates hot airflow and sends it into the paint booth body 1 through pipe 1 5. The hot airflow entering the paint booth body 1 bakes the vehicles that have been painted. The exhaust gas generated during the baking process will re-enter the treatment box 31 through the air duct 2 and the air inlet pipe 32. After being adsorbed by the adsorption mechanism 35, part of the exhaust gas will re-enter the paint booth body 1 through the exhaust pipe 33 and pipe 2 6, following the airflow in pipe 1 5. The other part of the exhaust gas adsorbed by the adsorption mechanism 35 will be directly discharged to the outside of the treatment box 31.

[0021] The adsorption mechanism 35 includes two mounting frames 351 fixed on the inner walls of both sides of the treatment box 31. A rectangular plate 352 is detachably fixed between the two mounting frames 351. An adsorption filter plate 353 and an adsorption filter plate 354 are embedded and fixed through the rectangular plate 352. A partition 313 is fixedly installed on the inner wall of the paint spraying booth body 1 near the air inlet pipe 32. A rectangular outlet 314 is opened on the partition 313.

[0022] The reversing mechanism 34 includes inclined plate 341 and inclined plate 342 fixed on the side of the partition 313 near the adsorption mechanism 35. The reversing mechanism 34 also includes inclined plate 343 and inclined plate 344 fixed on the side of the rectangular plate 352 near the partition 313. The same swing plate 345 is rotatably installed between the rectangular plate 352 and the partition 313. The reversing mechanism 34 also includes a motor 346 fixed on the top of the spray painting and baking booth body 1. The output shaft of the motor 346 extends rotatably into the spray painting and baking booth body 1 and is fixedly connected to the top center of the swing plate 345.

[0023] Furthermore, both adsorption filter plate 353 and adsorption filter plate 354 are connected to wires. During the desorption of VOCs in the waste gas by the adsorption mechanism 35, the adsorption filter plate 353 and adsorption filter plate 354 that are not in the desorption state are in an energized state. By directly energizing the adsorption filter plate 353 and adsorption filter plate 354, heat is generated by their own resistance, achieving rapid and uniform heating. Using electrothermal desorption technology, after four adsorption-desorption cycles, the saturated adsorption capacity of the activated carbon fiber adsorption filter plate 353 and adsorption filter plate 354 can still reach more than 80% of the original adsorption capacity, demonstrating good reusability.

[0024] Inclined plate 1 341 and inclined plate 2 342 are arranged in a V-shape, and rectangular outlet 314 is located between inclined plate 1 341 and inclined plate 2 342. Inclined plate 3 343 and inclined plate 4 344 are arranged in a V-shape.

[0025] The flow guiding mechanism 36 includes a flow divider 361 that is slidably installed inside the main body 1 of the spray painting and baking booth. The flow guiding mechanism 36 also includes a linear module 362 fixed to the top of the main body 1 of the spray painting and baking booth. A strip-shaped hole is fixedly opened on the top of the main body 1 of the spray painting and baking booth. A connecting block 363 that passes through the strip-shaped hole is fixedly installed on the slider of the linear module 362. The bottom of the connecting block 363 is fixedly connected to the top of the flow divider 361. Bellows baffles 364 are fixedly installed on both sides of the connecting block 363. The sides of the two bellows baffles 364 that are far apart from each other are fixedly connected to the inner walls of the two sides of the strip-shaped hole.

[0026] The inner walls on both sides of the treatment box 31 are respectively provided with exhaust vent 381 and exhaust vent 391. The treatment chamber 38 is connected to the outside through exhaust vent 381, and the treatment chamber 39 is connected to the outside through exhaust vent 391. The inner walls on both sides of the spray painting and baking booth 1 are equipped with sealing mechanisms 37, and the two sealing mechanisms 37 are centrally symmetrically distributed. The two sealing mechanisms 37 are used to cover exhaust vent 381 and exhaust vent 391 respectively.

[0027] The sealing mechanism 37 includes a sealing plate 371 rotatably mounted on the inner wall of the main body 1 of the spray painting and baking booth. The sealing plate 371 is connected to the inner wall of the main body 1 of the spray painting and baking booth through multiple torsion spring hinges 372. The top and bottom of the sealing plate 371 are fixedly installed with cables 373, and the ends of the two cables 373 away from the sealing plate 371 are fixedly connected to the swing plate 345.

[0028] Furthermore, such as Figure 3 , Figure 5 , Figure 7 and Figure 8As shown, during the rotation of the swing plate 345 driven by the motor 346, the two cables 373 in the sealing mechanism 37 in the closed state will be subjected to tension. The cables 373 pull the sealing plate 371 to rotate, causing the sealing plate 371, which was originally attached to the inner wall of the spray painting and baking booth 1, to separate from the inner wall of the spray painting and baking booth 1. This allows the exhaust port 1 381 / exhaust port 2 391, which was originally blocked by the sealing plate 371, to be opened from the closed state. As described above, as the swing plate 345 rotates, the two cables 373 in the sealing mechanism 37, which were originally in the open state, will no longer be subjected to the tension of the swing plate 345. At this time, under the reset elastic force of the torsion spring hinge 372, the sealing plate 371 will be made to fit against the inner wall of the paint spraying and baking booth body 1, thereby restoring the previously open exhaust vent 1 381 / exhaust vent 2 391 to the closed state.

[0029] The bottom of the main body 1 of the spray painting and baking booth has two perforated panels 310 fixedly installed. The two perforated panels 310 are located in the first processing chamber 38 and the second processing chamber 39, respectively. The bottom of the main body 1 of the spray painting and baking booth has two opposing mounting brackets 311 fixedly installed. Each of the two mounting brackets 311 has a storage hopper 312 that is pulled out and slidably installed.

[0030] Furthermore, such as Figure 3 , Figure 4 , Figures 6-8 As shown, when the adsorption filter plate 1 353 / adsorption filter plate 2 354 is subjected to the back pressure of the airflow from the right side of the adsorption mechanism 35, the residue falling from the adsorption filter plate 1 353 / adsorption filter plate 2 354 will fall onto the corresponding perforated plate 310 and eventually pass through the perforated plate 310 into the storage hopper 312. Subsequently, it is only necessary to periodically remove the corresponding storage hopper 312 for cleaning.

[0031] In this embodiment: as Figure 3 and Figure 7 As shown, the exhaust gas enters the treatment chamber 39 through the air inlet pipe 32. After being adsorbed by the adsorption filter plate 354, the exhaust gas flows to the right side of the adsorption mechanism 35. Then, this part of the exhaust gas is guided by the diversion plate 361 and flows towards the exhaust port 381. After encountering the inner wall of the paint spraying booth 1, this part of the air is divided into two parts. One part of the exhaust gas will be discharged from the exhaust pipe 33 and flow back into the paint spraying booth 1 through the pipe 6. The other part of the exhaust gas will flow from right to left to backwash the adsorption filter plate 353, thereby completing the desorption of the adsorption filter plate 353. Then, this part of the exhaust gas is discharged to the outside of the treatment box 31 through the exhaust port 381. like Figure 3 , Figure 7 and Figure 8As shown, after the second adsorption filter plate 354 has been working for a period of time, the starting motor 346 drives the swing plate 345 to rotate 90 degrees counterclockwise, so that the swing plate 345, which was originally abutting against the first inclined plate 341 and the fourth inclined plate 344, rotates to abut against the second inclined plate 342 and the third inclined plate 343. Meanwhile, the linear module 362 drives the diverter plate 361 to move through the connecting block 363, causing the diverter plate 361 to change from a certain state. Figure 7 The image shows the conversion to Figure 8 As shown; like Figure 3 and Figure 8 As shown, the exhaust gas then enters the treatment chamber 38 through the inlet pipe 32. After being adsorbed by the adsorption filter plate 353, the exhaust gas flows to the right side of the adsorption mechanism 35. Then, this part of the exhaust gas is guided by the diverter plate 361 and flows towards the exhaust port 391. After encountering the inner wall of the paint spraying booth 1, this part of the air is divided into two parts. One part of the exhaust gas will be discharged from the exhaust pipe 33 and flow back into the paint spraying booth 1 through the pipe 6. The other part of the exhaust gas will flow from right to left to backwash the adsorption filter plate 354, thereby completing the desorption of the adsorption filter plate 353. Then, this part of the exhaust gas is discharged to the outside of the treatment box 31 through the exhaust port 391.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking booth, comprising the main body of the spray painting and baking booth (1), characterized in that: The bottom of the spray painting and baking booth (1) is provided with an air duct (2). A flue gas treatment component (3) and a heat pump blower (4) are provided on one side of the air duct (2). The air duct (2) is connected to the flue gas treatment component (3). Pipeline 1 (5) and pipeline 2 (6) are respectively connected to the flue gas treatment component (3) and the heat pump blower (4). Both pipeline 1 (5) and pipeline 2 (6) are connected to the spray painting and baking booth (1). The flue gas treatment component (3) includes a treatment box (31). The treatment box (31) is provided with an air inlet pipe (32) and an air outlet pipe (33) on both sides. The air duct (2) is connected to the air inlet pipe (32), and the air outlet pipe (33) is connected to the second pipe (6). The treatment box (31) is provided with an adsorption mechanism (35) and a flow guiding mechanism (36). A reversing mechanism (34) is provided between the adsorption mechanism (35) and the air inlet pipe (32). The reversing mechanism (34) and the adsorption mechanism (35) cooperate to divide the interior of the treatment box (31) into a treatment chamber one (38) and a treatment chamber two (39). By adjusting the reversing mechanism (34), the air inlet pipe (32) can be directly connected to the treatment chamber one (38) and the treatment chamber two (39) respectively.

2. The constant temperature exhaust gas treatment device for an integrated spray painting and baking room according to claim 1, characterized in that: The adsorption mechanism (35) includes two mounting frames (351) fixed on the inner walls of both sides of the processing box (31). The same rectangular plate (352) is detachably fixed between the two mounting frames (351). Adsorption filter plate one (353) and adsorption filter plate two (354) are embedded and fixed through the rectangular plate (352). A partition (313) is fixedly installed on the inner wall of the main body (1) of the spray painting and baking booth near the air inlet pipe (32). A rectangular outlet (314) is opened on the partition (313).

3. The constant temperature exhaust gas treatment device for an integrated spray painting and baking room according to claim 2, characterized in that: The reversing mechanism (34) includes inclined plate one (341) and inclined plate two (342) fixed on the side of the partition plate (313) near the adsorption mechanism (35). The reversing mechanism (34) also includes inclined plate three (343) and inclined plate four (344) fixed on the side of the rectangular plate (352) near the partition plate (313). The rectangular plate (352) and the partition plate (313) are rotatably mounted with the same swing plate (345). The reversing mechanism (34) also includes a motor (346) fixed on the top of the spray painting and baking booth body (1). The output shaft of the motor (346) extends rotatably into the spray painting and baking booth body (1) and is fixedly connected to the top center of the swing plate (345).

4. The constant temperature exhaust gas treatment device for an integrated spray painting and baking room according to claim 3, characterized in that: The inclined plate one (341) and inclined plate two (342) are arranged in a V shape, and the rectangular outlet (314) is located between the inclined plate one (341) and inclined plate two (342). The inclined plate three (343) and inclined plate four (344) are arranged in a V shape.

5. A constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room according to claim 1, characterized in that: The flow guiding mechanism (36) includes a flow divider plate (361) that is slidably installed inside the main body (1) of the spray painting and baking booth. The flow guiding mechanism (36) also includes a linear module (362) fixed on the top of the main body (1) of the spray painting and baking booth. A strip hole is fixedly opened on the top of the main body (1) of the spray painting and baking booth. A connecting block (363) that passes through the strip hole is fixedly installed on the slider of the linear module (362). The bottom of the connecting block (363) is fixedly connected to the top of the flow divider plate (361). Bellows baffles (364) are fixedly installed on both sides of the connecting block (363). The two bellows baffles (364) are respectively fixedly connected to the inner walls of the two sides of the strip hole on the opposite sides.

6. The constant temperature exhaust gas treatment device for an integrated spray painting and baking room according to claim 3, characterized in that: The processing box (31) has an exhaust port 1 (381) and an exhaust port 2 (391) on its inner walls on both sides respectively. The processing chamber 1 (38) is connected to the outside through the exhaust port 1 (381), and the processing chamber 2 (39) is connected to the outside through the exhaust port 2 (391). The spray painting and baking booth main body (1) is equipped with a sealing mechanism (37) on both inner walls, and the two sealing mechanisms (37) are centrally symmetrically distributed. The two sealing mechanisms (37) are used to cover the exhaust port 1 (381) and the exhaust port 2 (391) respectively.

7. A constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room according to claim 6, characterized in that: The sealing mechanism (37) includes a sealing plate (371) rotatably installed on the inner wall of the main body (1) of the spray painting and baking booth. The sealing plate (371) is connected to the inner wall of the main body (1) of the spray painting and baking booth by a plurality of torsion spring hinges (372). The top and bottom of the sealing plate (371) are fixedly installed with cables (373), and the ends of the two cables (373) away from the sealing plate (371) are fixedly connected to the swing plate (345).

8. A constant temperature exhaust gas treatment device suitable for an integrated spray painting and baking room according to claim 1, characterized in that: The bottom of the main body (1) of the spray painting and baking booth has two perforated plates (310) fixedly installed. The two perforated plates (310) are located in the first processing chamber (38) and the second processing chamber (39) respectively. The bottom of the main body (1) of the spray painting and baking booth has two opposing mounting brackets (311) fixedly installed. Each mounting bracket (311) has a storage hopper (312) that is pulled out and slidably installed.

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