A tail gas treatment device for copper-clad plate production

Abstract

The application provides a tail gas treatment device for copper-clad plate production, which comprises a frame body, a rotating installation cylinder, a strip-shaped adsorption shell, U-shaped molecular sieve adsorption strips and other components. The rotating installation cylinder is driven by a driving motor to rotate, so that the strip-shaped adsorption shell circulates to treat the tail gas. The U-shaped molecular sieve adsorption strips in the strip-shaped adsorption shell are used to adsorb VOCs in the tail gas. When the adsorption strips are close to saturation, high-temperature flue gas and hot air generated by a burning box are used to heat the adsorption strips, so that high-concentration VOCs are released to the burning box for oxidative decomposition. Meanwhile, a blower fan is used to air-cool and cool the adsorption strips through a cooling air inlet hood, so that the molecular sieve is regenerated. Part of the hot air is recycled and used to continue heating and temperature rising through heat exchange pipes, so that the heat energy utilization rate is improved. In addition, heat exchange strips are arranged on the outer wall of the strip-shaped adsorption shell, so that the heat exchange efficiency is improved. The application not only solves the problem that low-concentration VOCs are difficult to treat, but also improves the energy efficiency through heat energy recycling, so that effective treatment of the tail gas and maximum utilization of resources are realized.

Description

Technical Field

[0001] This invention belongs to the field of industrial production exhaust gas treatment technology, and relates to an exhaust gas treatment device for copper clad laminate production. Background Technology

[0002] Copper-clad laminates (CCLs) are an indispensable basic material in the electronics industry, widely used in the manufacture of printed circuit boards (PCBs). With the rapid development of the global electronics industry, the demand for CCLs has been increasing year by year. However, the production process of CCLs inevitably generates a certain amount of exhaust gas. If this exhaust gas is discharged directly into the environment without proper treatment, it will not only pollute the atmospheric environment but may also pose a potential threat to human health.

[0003] Copper clad laminate (CCL) production mainly involves multiple processes, including adhesive application, drying, lamination, cutting, and polishing. These processes, especially the adhesive application and drying stages, utilize large quantities of organic solvents, such as dimethylformamide (DMF) and acetone. These organic solvents volatilize during production and processing, forming the main component of the waste gas—volatile organic compounds (VOCs). VOCs not only include DMF and acetone mentioned above but may also contain other types of organic compounds, such as benzene compounds, ketones, and esters. These VOCs are flammable and explosive, and some are also toxic or carcinogenic; therefore, their effective treatment is crucial.

[0004] Currently, the common treatment methods for VOCs generated during copper clad laminate (CCL) production are adsorption and incineration. Adsorption uses specific adsorbents (such as activated carbon and molecular sieves) to separate VOCs from the gas stream. While this method effectively reduces the concentration of VOCs in waste gas, it has some significant limitations. First, the cost of adsorbents is high, especially for large-scale continuous production plants, representing a considerable expense. Second, the adsorption process cannot completely eliminate the harm of VOCs, as the adsorbent needs to be regenerated or replaced after saturation. This process can lead to secondary pollution, and improper handling can cause VOCs to be released back into the environment.

[0005] In contrast, incineration is a more thorough and permanent solution. Through high-temperature oxidation, VOCs are decomposed into carbon dioxide and water, thus achieving harmless treatment. However, incineration also has its limitations, primarily targeting high concentrations of VOCs. When VOC concentrations are low, they cannot burn due to insufficient concentration, and the VOC concentrations generated during copper-clad laminate production are not high, making incineration an effective method for VOC treatment.

[0006] Chinese patent application CN106139821A discloses a zeolite rotor adsorption concentration and purification device, which concentrates VOCs through molecular sieve adsorption and then effectively incinerates the concentrated VOCs. However, the molecular sieve used is a conventional disc-shaped molecular sieve, which releases VOCs through heating and then regenerates by natural cooling. This method has low regeneration efficiency, and the molecular sieve requires a long time to recover its adsorption capacity, resulting in slow concentration speed and ultimately low exhaust gas treatment efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a tail gas treatment device for copper clad laminate production, which adsorbs and concentrates low-concentration tail gas and then incinerates it. The concentration speed is fast and the tail gas treatment efficiency is high, thus avoiding air pollution caused by emissions.

[0008] To solve the above-mentioned technical problems, the present invention provides a tail gas treatment device for copper clad laminate production, including a frame, a horizontally arranged mounting cylinder rotatably connected inside the frame, a drive motor for driving the mounting cylinder to rotate outside the frame, multiple hollow and circumferentially distributed strip-shaped adsorption shells arranged on the outer periphery of the mounting cylinder, each strip-shaped adsorption shell having an air inlet and an air outlet at its front and rear ends respectively, and each strip-shaped adsorption shell having a U-shaped molecular sieve adsorption strip inside, a C-shaped air inlet hood that cooperates and communicates with the strip-shaped adsorption shells on the front side of the frame, an air inlet pipe connected to the front side of the C-shaped air inlet hood, and a C-shaped air outlet hood that cooperates and communicates with the strip-shaped adsorption shells on the rear side of the frame, an exhaust port connected to the rear side of the C-shaped air outlet hood;

[0009] On the front side of the frame, between the C-shaped air inlet hoods, are a tail gas concentrator hood and a cooling air inlet hood, both connected to the air inlet. The cooling air inlet hood is connected to a blower via an air inlet pipe. On the rear side of the frame, between the C-shaped air outlet hoods, are a hot smoke hood corresponding to the tail gas concentrator hood and a hot air hood corresponding to the cooling air inlet hood and connected to the air outlet. The hot smoke hood has an exhaust port connected outwards. The outer side of the hot air hood has an exhaust port and a hot air recovery pipe connected. The hot air recovery pipe extends into the hot smoke hood and connects to a heat exchange pipe. The front side of the hot smoke hood has a hot air port for the free end of the heat exchange pipe to connect to the air outlet. The frame has an incinerator at the tail gas concentrator hood, and a tail gas concentrator pipe connects the tail gas concentrator hood and the incinerator.

[0010] By adopting the above technical solution, during operation, the installation cylinder drives the strip adsorption shell to rotate continuously, and at the same time, exhaust gas is continuously introduced into the C-type air intake hood through the suction pump. The exhaust gas enters the corresponding strip adsorption shell through the air intake port connected to it in the C-type air intake hood. In the strip adsorption shell, the exhaust gas gradually passes through the U-shaped molecular sieve adsorption strip, so that VOCs are adsorbed by the U-shaped molecular sieve adsorption strip.

[0011] As the installation cylinder continues to rotate, the U-shaped molecular sieve adsorption strips gradually adsorb to near saturation. When it rotates to the position of the exhaust gas concentrator, the high-temperature flue gas generated by combustion in the incinerator enters the strip heat exchange hood. The high-temperature flue gas heats the U-shaped molecular sieve adsorption strips in the strip adsorption shell inside the strip heat exchange hood. Combined with the hot airflow entering the strip heat exchange hood through the hot smoke hood, it carries away the high concentration of VOCs released by the U-shaped molecular sieve adsorption strips. The VOCs are then burned in the incinerator through the exhaust gas concentrator, completely oxidized into harmless carbon dioxide and water, and discharged from the exhaust port.

[0012] As the installation cylinder continues to rotate, when it reaches the cooling air inlet hood, the airflow generated by the blower enters the strip-shaped adsorption shell through the air inlet of the cooling air inlet hood, carrying away the heat from the U-shaped molecular sieve adsorption strips. The airflow continuously cools the strip-shaped adsorption shell through the strip-shaped cold air hood, gradually cooling and regenerating the U-shaped molecular sieve adsorption strips and restoring their adsorption capacity. After absorbing heat from the strip-shaped adsorption shell and transforming into hot air, the airflow enters the hot air hood through the air outlet. Part of the hot airflow is directly discharged through the exhaust port, while part is further heated in the hot smoke hood through the hot air recovery pipe and heat exchange pipe, and then enters the strip-shaped adsorption shell through another air outlet to circulate and heat the internal U-shaped molecular sieve adsorption strips, providing the oxygen required for VOCs combustion and allowing some heat energy to be recovered and utilized.

[0013] The invention is further configured such that an electronic spark plug is installed inside the incinerator near the exhaust gas concentrator, a gas pipe is connected to the incinerator near the electronic spark plug, a solenoid valve is installed on the gas pipe, a strip-shaped heat exchange hood that cooperates with the strip-shaped adsorption shell is installed between the exhaust gas concentrator and the hot smoke hood on the frame, the inner side of the strip-shaped heat exchange hood is open and is slidably and sealed to the outer wall of the strip-shaped heat exchange hood, and the incinerator is connected to a smoke guide channel that communicates with the strip-shaped heat exchange hood.

[0014] The present invention is further configured such that one end of the mounting cylinder is connected to a transmission pulley, the power output shaft of the drive motor is connected to a drive pulley, and the drive pulley and the transmission pulley are driven by a belt.

[0015] The present invention is further configured such that the air inlet pipe is connected to a filter cartridge, a dust filter cartridge is provided inside the filter cartridge, the filter cartridge is connected to an exhaust pipe, the free end of the exhaust pipe is connected to a suction pump, and the inlet end of the suction pump is connected to an exhaust gas inlet pipe.

[0016] The present invention is further configured such that each U-shaped molecular sieve adsorption strip is bent outward to form multiple outwardly expanding grooves that are distributed along its length and are approximately U-shaped.

[0017] The invention is further configured such that each strip-shaped adsorption shell is made of a thermally conductive metal material, and each strip-shaped adsorption shell has multiple heat exchange strips extending into the corresponding inner cavity and the corresponding U-shaped outer cavity on its inner wall away from the mounting cylinder.

[0018] The present invention is further configured such that each heat exchange strip is a hollow structure with the corresponding strip-shaped adsorption shell recessed inward.

[0019] The present invention is further configured such that each U-shaped molecular sieve adsorption strip is made of 13X molecular sieve.

[0020] The present invention is further configured such that VOCs concentration sensors are installed in both the exhaust gas concentrator and the intake pipe.

[0021] The present invention is further configured such that a strip-shaped cold air hood is provided in the direction of the cooling air inlet hood towards the hot air hood, which cooperates with the strip-shaped adsorption shell. The inner side of the strip-shaped cold air hood is open and is slidably and sealed to the outer wall of the strip-shaped heat exchange hood. An air outlet is provided at the end of the strip-shaped cold air hood away from the cooling air inlet hood.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] Firstly, this invention introduces molecular sieve adsorption technology, which effectively concentrates the low-concentration organic compound exhaust gas generated during the copper clad laminate production process. The molecular sieve selectively adsorbs volatile organic compounds, enriching the VOCs in the originally thin exhaust gas. Subsequently, these concentrated high-concentration VOCs can be completely oxidized and decomposed through an incineration system. This not only solves the problem of the difficulty in directly incinerating low-concentration VOCs, but also provides a permanent solution to ensure that the exhaust gas from the copper clad laminate production process is effectively treated.

[0024] Secondly, this invention innovatively employs a U-shaped molecular sieve design distributed on the outside of the mounting cylinder. The shape of the molecular sieve is designed to match the strip-shaped adsorption shell, allowing airflow to pass through quickly. This enables the molecular sieve to rapidly heat up and dissipate VOCs, and the rapidly flowing airflow also rapidly cools the molecular sieve, thereby achieving rapid regeneration. This effectively shortens the regeneration time of the molecular sieve, allowing it to be added to VOCs more quickly for faster VOCs adsorption and concentration, thus improving the overall tail gas absorption and treatment efficiency.

[0025] Thirdly, the present invention employs a multi-stage heat exchange design during the incineration process. The high-temperature hot gas generated can not only be used for the heating and regeneration of the molecular sieve, but also effectively recover and utilize this heat. By recovering the hot gas generated during the incineration process and using it for the regeneration process of the molecular sieve, additional energy consumption is reduced and the thermal efficiency of the entire system is improved.

[0026] Fourth, during the cooling process of the molecular sieve, some of the air that has absorbed heat can be reused in the heating stage of the molecular sieve to provide the oxygen required for VOCs combustion. This design not only ensures the oxygen supply during combustion but also allows for the recovery and utilization of some heat energy, further improving the system's energy efficiency.

[0027] Fifth, this invention increases the effective surface area of ​​the molecular sieve by arranging U-shaped molecular sieve adsorption strips outside the mounting cylinder and bending them to form multiple outward expansion grooves. This design not only makes it easier for airflow to pass through, but also significantly enhances the adsorption capacity for VOCs. In conjunction with the strip-shaped adsorption shell, it enables rapid heating and cooling of the molecular sieve adsorption strips, thereby achieving rapid regeneration of the molecular sieve. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is the overall structural entity on the rear side of the present invention;

[0030] Figure 3 This is a schematic diagram of the overall structure of the present invention, which removes the frame.

[0031] Figure 4 This invention is the overall structural entity with the rear side of the frame removed;

[0032] Figure 5 Used to demonstrate the internal structure of the strip-shaped adsorption shell;

[0033] Figure 6 A cross-sectional view showing the connection between the strip adsorption shell and the exhaust gas concentration hood, hot smoke hood, hot air hood, and incinerator.

[0034] Figure 7Used to display the dust filter cartridge inside the filter cartridge.

[0035] The components include: 1. Frame; 2. Mounting cylinder; 3. Drive motor; 4. Transmission pulley; 5. Drive pulley; 6. Belt; 7. Strip-shaped adsorption shell; 8. Air inlet; 9. Air outlet; 10. U-shaped molecular sieve adsorption strip; 11. Inner cavity; 12. U-shaped outer cavity; 13. Outer expansion groove; 14. Heat exchange strip; 15. C-shaped air inlet hood; 16. Air inlet pipe; 17. Filter cartridge; 18. Dust filter cartridge; 19. Exhaust pipe; 20. Suction pump; 21. Exhaust gas inlet pipe; 22. C-shaped exhaust hood. 23. Exhaust port; 24. Exhaust gas concentrator; 25. Cooling air inlet hood; 26. Strip-shaped cold air hood; 27. Air outlet; 28. Blower; 29. ​​Hot smoke hood; 30. Hot air hood; 31. Smoke outlet; 32. Air outlet; 33. Hot air recovery pipe; 34. Heat exchange pipe; 35. Incinerator; 36. Exhaust gas concentrator; 37. Electronic spark plug; 38. Gas pipe; 39. Solenoid valve; 40. Strip-shaped heat exchange hood; 41. Smoke guide channel; 42. VOCs concentration sensor. Detailed Implementation

[0036] The exhaust gas treatment device for copper clad laminate production proposed in this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0037] Example, refer to Figure 1-7A tail gas treatment device for copper clad laminate production includes a frame 1, a horizontally arranged mounting cylinder 2 rotatably connected inside the frame 1, a drive motor 3 for driving the mounting cylinder 2 to rotate is installed outside the frame 1, a transmission pulley 4 is connected to one end of the mounting cylinder 2, a drive pulley 5 is connected to the power output shaft of the drive motor 3, and the drive pulley 5 and the transmission pulley 4 are driven by a belt 6. The outer periphery of the mounting cylinder 2 is provided with multiple hollow, circumferentially distributed strip-shaped adsorption shells 7. The cross-section of each strip-shaped adsorption shell 7 is arc-shaped. Each strip-shaped adsorption shell 7 has an air inlet 8 at the front end and an air outlet 9 at the rear end. Each strip-shaped adsorption shell 7 is provided with a U-shaped molecular sieve adsorption strip 10. The U-shaped molecular sieve adsorption strip 10 is made of 13X molecular sieve. Each strip-shaped adsorption shell 7 is divided into an inner cavity 11 communicating with the corresponding air inlet 8 and a U-shaped outer cavity 12 communicating with the corresponding air outlet 9 by the corresponding U-shaped molecular sieve adsorption strip 10. Each U-shaped molecular sieve adsorption strip 10 is bent outward to form multiple approximately U-shaped outward expansion grooves 13 distributed along its length direction to increase the surface area of ​​the U-shaped molecular sieve adsorption strip 10 and increase the efficiency of gas passage and tail gas adsorption. Each strip-shaped adsorption shell 7 is made of thermally conductive metal material. Each strip-shaped adsorption shell 7 has multiple heat exchange strips 14 extending into the corresponding inner cavity 11 and the corresponding U-shaped outer cavity 12 on its inner wall away from the mounting cylinder 2. Each heat exchange strip 14 is arranged along the length of the strip-shaped adsorption shell 7. Each heat exchange strip 14 is a hollow structure that is recessed inward in the corresponding strip-shaped adsorption shell 7 to increase the heat exchange efficiency inside the strip-shaped adsorption shell 7.

[0038] A C-shaped air intake hood 15 is provided on the front side of the frame 1 to cooperate with the strip adsorption shell 7. The rear side of the C-shaped air intake hood 15 is an opening that communicates with the air inlet 8 and is slidably connected to the strip adsorption shell 7. An air intake pipe 16 is connected to the front side of the C-shaped air intake hood 15. The air intake pipe 16 is connected to a filter cylinder 17. A dust filter cylinder 18 is provided inside the filter cylinder 17. The dust filter cylinder 18 filters the particulate impurities mixed in the exhaust gas to prevent them from entering and adhering to the surface of the U-shaped molecular sieve adsorption strip 10 and affecting the adsorption effect. An exhaust gas pipe 19 is connected to the filter cylinder 17. A suction pump 20 is connected to the free end of the exhaust gas pipe 19. An exhaust gas inlet pipe 21 is connected to the inlet end of the suction pump 20. A C-shaped air hood 22 is provided on the rear side of the frame 1 to cooperate with the strip-shaped adsorption shell 7. The front side of the C-shaped air hood 22 is an opening that communicates with the air outlet 9 and is slidably connected to the strip-shaped adsorption shell 7. An exhaust port 23 is connected to the rear side of the C-shaped air hood 22.

[0039] On the front side of the frame 1, between the openings of the C-shaped air inlet hood 15, there is an exhaust gas concentrator hood 24 and a cooling air inlet hood 25. Both the exhaust gas concentrator hood 24 and the cooling air inlet hood 25 are arc-shaped and cooperate with the mounting cylinder 2. The rear side of the exhaust gas concentrator hood 24 has an opening communicating with the air inlet 8, and the rear side of the cooling air inlet hood 25 also has an opening communicating with the air inlet 8. It is also slidably connected to the strip-shaped adsorption shell 7 in a sealed manner. The cooling air inlet hood 25 has a strip that connects with the strip-shaped adsorption shell in the direction of the hot air hood 30. The strip-shaped cooling shroud 26 is matched with the strip-shaped heat exchange shroud 40. The inner side of the strip-shaped cooling shroud 26 is open and is slidably connected to the outer wall of the strip-shaped heat exchange shroud 40. The airflow inside the strip-shaped cooling shroud 26 can quickly cool the strip-shaped adsorption shell 7. An air outlet 27 is opened at the end of the strip-shaped cooling shroud 26 away from the cooling air inlet shroud 25. The cooling air inlet shroud 25 is connected to a blower 28 through an air inlet pipe. The blower 28 generates airflow inside the cooling air inlet shroud 25 and the strip-shaped cooling shroud 26.

[0040] On the rear side of the frame 1, between the C-shaped exhaust hoods 22, there is a hot smoke hood 29 corresponding to the exhaust gas concentration hood 24 and a hot air hood 30 corresponding to the cooling air inlet hood 25. The hot smoke hood 29 is connected to an exhaust port 31. The front side of the hot air hood 30 is an opening connected to the exhaust port 9 and is slidably connected to the strip adsorption shell 7. The outer side of the hot air hood 30 is connected to an exhaust port 32 and a hot air recovery pipe 33. The hot air recovery pipe 33 extends into the hot smoke hood 29 and is connected to a heat exchange pipe 34. The heat exchange pipe 34 is serpentine to better absorb the heat in the hot smoke. The front side of the hot smoke hood 29 has a hot air port (not shown) for the free end of the heat exchange pipe 34 to connect with the exhaust port 9, so that the air that absorbs heat in the strip adsorption shell 7 can be partially circulated back into the hot smoke hood 29 for reheating, and then circulated into another strip adsorption shell 7, which not only provides the oxygen required for combustion, but also allows some heat energy to be recovered and utilized.

[0041] A combustion chamber 35 is installed at the exhaust gas concentration hood 24 in the frame 1. An exhaust gas concentration pipe 36 connects the exhaust gas concentration hood 24 and the combustion chamber 35. An electronic spark plug 37 is installed in the combustion chamber 35 near the exhaust gas concentration pipe 36. A gas pipe 38 is connected to the combustion chamber 35 near the electronic spark plug 37. A solenoid valve 39 is installed on the gas pipe 38. During initial use, gas heating is used to provide the heat required by the system. A strip heat exchange hood 40 that cooperates with the strip adsorption shell 7 is installed between the exhaust gas concentration hood 24 and the hot smoke hood 29 in the frame 1. The inner side of the strip heat exchange hood 40 is open and it is slidably connected to the outer wall of the strip heat exchange hood 40. A smoke guide channel 41 connected to the strip heat exchange hood 40 is connected to the combustion chamber 35. High-temperature hot smoke is introduced into the strip heat exchange hood 40 to heat the U-shaped molecular sieve adsorption strips 10 in the strip adsorption shell 7, so that VOCs are released and the adsorption capacity is restored. Both the exhaust gas concentrator 24 and the intake pipe 16 are equipped with a VOCs concentration sensor 42 to determine the adsorption status of the U-shaped molecular sieve adsorption strip 10 based on the concentration, and then adjust the rotation speed of the mounting cylinder 2 in real time.

[0042] Working principle: During operation, the mounting cylinder 2 drives the strip adsorption shell 7 to rotate continuously, while the exhaust gas is continuously introduced into the C-type air intake hood 15 through the suction pump 20. The exhaust gas enters the corresponding strip adsorption shell 7 through the air intake 8 connected to it in the C-type air intake hood 15. In the strip adsorption shell 7, the exhaust gas gradually passes through the U-shaped molecular sieve adsorption strip 10, so that VOCs are adsorbed by the U-shaped molecular sieve adsorption strip 10.

[0043] As the installation cylinder 2 continues to rotate, the U-shaped molecular sieve adsorption strip 10 gradually adsorbs to near saturation. When it rotates to the position of the tail gas concentration hood 24, the high-temperature flue gas generated by combustion in the incinerator 35 enters the strip heat exchange hood 40. The high-temperature flue gas heats the U-shaped molecular sieve adsorption strip 10 in the strip adsorption shell 7 in the strip heat exchange hood 40. Combined with the hot airflow entering the strip heat exchange hood 40 through the hot smoke hood 29, it carries away the high concentration of VOCs released by the U-shaped molecular sieve adsorption strip 10. The VOCs are then burned in the incinerator 35 through the tail gas concentration hood 24 and completely oxidized into harmless carbon dioxide and water, which are discharged from the exhaust port 31.

[0044] As the mounting cylinder 2 continues to rotate, when it rotates to the cooling air inlet hood 25, the airflow generated by the blower 28 enters the strip adsorption shell 7 through the air inlet 8 from the cooling air inlet hood 25, carrying away the heat on the U-shaped molecular sieve adsorption strips 10. The airflow continuously cools the strip adsorption shell 7 through the strip cold air hood 26, gradually cooling and regenerating the U-shaped molecular sieve adsorption strips 10 and restoring their adsorption capacity. After the airflow absorbs heat from the strip adsorption shell 7 and transforms into hot air, it enters the hot air hood 30 through the air outlet 9. Part of the hot airflow is directly discharged through the exhaust port 32, and part of it continues to be heated in the hot smoke hood 29 through the hot air recovery pipe 33 and the heat exchange pipe 34. It then enters the strip adsorption shell 7 through another air outlet 27 to circulate and heat the U-shaped molecular sieve adsorption strips 10 inside, providing the oxygen required for VOCs combustion and allowing some heat energy to be recovered and utilized.

[0045] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0046] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A tail gas treatment device for copper clad laminate production, comprising a frame (1), a horizontally arranged mounting cylinder (2) rotatably connected inside the frame, and a drive motor (3) for driving the mounting cylinder to rotate outside the frame, characterized in that, The outer periphery of the mounting cylinder is provided with multiple hollow strip-shaped adsorption shells (7) arranged in a circular pattern. Each strip-shaped adsorption shell has an air inlet (8) and an air outlet (9) at its front and rear ends, respectively. Each strip-shaped adsorption shell is provided with a U-shaped molecular sieve adsorption strip (10). The front side of the frame is provided with a C-shaped air inlet hood (15) that cooperates with and communicates with the strip-shaped adsorption shells. The front side of the C-shaped air inlet hood is connected to an air inlet pipe (16). The rear side of the frame is provided with a C-shaped air outlet hood (22) that cooperates with and communicates with the strip-shaped adsorption shells. The rear side of the C-shaped air outlet hood is connected to an exhaust port (23). Between the front side of the frame and the C-shaped air inlet hood, there is a tail gas concentrator (24) and a cooling air inlet hood (25) that are both connected to the air inlet. The cooling air inlet hood is connected to a blower (28) through an air inlet pipe. Between the rear side of the frame and the C-shaped air outlet hood, there is a hot smoke hood (29) corresponding to the tail gas concentrator and a hot air hood (30) corresponding to the cooling air inlet hood and connected to the air outlet. The hot smoke hood is connected to an exhaust port (31) on the outside. The outside of the hot air hood is connected to an exhaust port (32) and a hot air recovery pipe (33). The hot air recovery pipe extends into the hot smoke hood and is connected to a heat exchange pipe (34). The front side of the hot smoke hood is provided with a hot air port for the free end of the heat exchange pipe to be connected to the air outlet. The frame is provided with an incinerator (35) at the tail gas concentrator. The tail gas concentrator and the incinerator are connected by a tail gas concentrator pipe (36). An electronic spark plug (37) is installed inside the incinerator near the exhaust gas concentrator. A gas pipe (38) is connected to the incinerator near the electronic spark plug. A solenoid valve (39) is installed on the gas pipe. A strip-shaped heat exchange hood (40) that cooperates with the strip-shaped adsorption shell is installed between the exhaust gas concentrator and the hot smoke hood. The inner side of the strip-shaped heat exchange hood is open and is slidably sealed to the outer wall of the strip-shaped adsorption shell. The incinerator is connected to a smoke guide channel (41) that is connected to the strip-shaped heat exchange hood.

2. The exhaust gas treatment device for copper clad laminate production according to claim 1, characterized in that, One end of the mounting cylinder is connected to a transmission pulley (4), and the power output shaft of the drive motor is connected to a drive pulley (5). The drive pulley and the transmission pulley are driven by a belt (6).

3. The exhaust gas treatment device for copper clad laminate production according to claim 1, characterized in that, The air inlet pipe is connected to a filter cartridge (17), a dust filter cartridge (18) is installed inside the filter cartridge, the filter cartridge is connected to an exhaust pipe (19) to the outside, the free end of the exhaust pipe is connected to a suction pump (20), and the inlet end of the suction pump is connected to an exhaust gas inlet pipe (21).

4. The exhaust gas treatment device for copper clad laminate production according to claim 1, characterized in that, Each U-shaped molecular sieve adsorption strip is bent outward to form multiple outward expansion grooves that are distributed along its length and are approximately U-shaped (13).

5. The exhaust gas treatment device for copper clad laminate production according to claim 1, characterized in that, Each strip adsorption shell is divided into an inner cavity (11) connected to the corresponding air inlet and an outer cavity (12) connected to the corresponding air outlet by a corresponding U-shaped molecular sieve adsorption strip. Each strip adsorption shell is made of thermally conductive metal material. Each strip adsorption shell has multiple heat exchange strips (14) extending into the corresponding inner cavity and the corresponding outer cavity on its inner wall away from the mounting cylinder.

6. The exhaust gas treatment device for copper clad laminate production according to claim 5, characterized in that, Each heat exchange bar is a hollow structure with a corresponding strip-shaped adsorption shell recessed inward.

7. The exhaust gas treatment device for copper clad laminate production according to claim 1, characterized in that, Each U-shaped molecular sieve adsorption strip is made of 13X molecular sieve.

8. The exhaust gas treatment device for copper clad laminate production according to claim 1, characterized in that, Both the exhaust gas concentrator and the intake pipe are equipped with VOCs concentration sensors (42).

9. A tail gas treatment device for copper clad laminate production according to any one of claims 1-8, characterized in that, The cooling air inlet hood is provided with a strip-shaped cold air hood (26) that cooperates with the strip-shaped adsorption shell in the direction of the hot air hood. The inner side of the strip-shaped cold air hood is open and is slidably connected to the outer wall of the strip-shaped heat exchange hood (40). An air outlet (27) is provided at the end of the strip-shaped cold air hood away from the cooling air inlet hood.

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