Electrophoretic coating waste gas comprehensive treatment device based on activated carbon adsorption

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to an electrophoretic coating waste gas comprehensive treatment device based on activated carbon adsorption. The shell is of a rectangular structure, the upper portion of the shell is provided with a ventilation opening, the two sides of the ventilation opening are each provided with a replacement opening in the length direction of the shell, a movable plate is movably arranged in the shell in the length direction of the shell, two storage grooves are formed in the movable plate, and filter plates are stored in the storage grooves and made of activated carbon. When the movable plate is in a standing state, one storage groove in the movable plate is communicated with the ventilation opening, the other storage groove in the movable plate is communicated with one replacement opening, and a driving unit used for driving the movable plate to move is arranged at the end of the shell. In the process of replacing the activated carbon, the treatment device does not need to stop running, so that the normal operation of the whole electrophoretic coating operation is ensured, and the yield is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption. Background Technology

[0002] Please refer to the attached diagram in the instruction manual for the existing process flow of the waste gas environmental protection treatment system. Figure 11 The waste gas environmental protection treatment process mainly involves the waste gas from the degreasing tank, electrophoresis tank, and drying oven being transported to the spray packing absorption tower by exhaust fans, and then to the demister box for treatment via waste gas pipelines. After treatment, the waste gas is transported to the honeycomb activated carbon adsorption box for adsorption and filtration, and then discharged by exhaust fans.

[0003] In the prior art, please refer to Chinese patent application CN116712833A, which discloses a waste gas treatment device based on activated carbon, including: a water tank; a smoke induction chamber disposed on the top of the water tank and connected thereto, wherein an activated carbon module and a smoke guide hood for diffusing and guiding the incoming smoke are disposed in the smoke induction chamber; and a treatment chamber connected to the port of the smoke induction chamber, wherein a grid plate module and an atomizing component are disposed in the treatment chamber. A demisting net is disposed in the treatment chamber near the smoke outlet. The demisting net consists of multiple frustum-shaped hoods arranged in a matrix, and an RO membrane assembly is disposed within each frustum-shaped hood; specifically, each frustum-shaped hood is an open structure closed at one end, with the open end facing the grid plate module.

[0004] While the above solution provides a method for treating waste gas using activated carbon, when applied to the automotive industry, waste gas is generated during automotive electrophoretic coating. If activated carbon is used to adsorb the waste gas, it needs to be replaced after a period of use, requiring the entire production line to be shut down. Otherwise, waste gas will inevitably overflow during the process of replacing the activated carbon, causing environmental pollution. However, this also leads to a reduction in production efficiency. Utility Model Content

[0005] To address the aforementioned issues, a comprehensive treatment device for electrophoretic coating exhaust gas based on activated carbon adsorption is provided. This device features an air vent at the top of the outer casing, with a replacement port on each side. Inside the casing, a movable plate that moves along the length of the casing is installed. This movable plate moves the filter plates, ensuring that when one filter plate is replaced, the other filter plate is positioned between the air vent and the air inlet. This guarantees that the treatment device remains operational even when the activated carbon filter plates are being replaced.

[0006] To address the problems of existing technologies, this utility model provides a comprehensive treatment device for electrophoretic coating exhaust gas based on activated carbon adsorption, comprising a shell; the shell is rectangular in structure, with an air vent at the top and a replacement port on each side of the air vent along the length of the shell; a movable plate is mounted inside the shell along the length of the shell, with two storage slots on the movable plate, each containing a filter plate made of activated carbon; when the movable plate is stationary, one of the storage slots on the movable plate is connected to the air vent, and the other storage slot is connected to one of the replacement ports; a drive unit for moving the movable plate is provided at the end of the shell.

[0007] Preferably, a cover plate is hinged to the replacement port, and a locking groove is provided on the end of the cover plate away from itself and the hinge point of the replacement port. A locking unit is provided at the end of the housing to lock the cover plate that is closed on the replacement port. The locking unit includes a first locking rod that passes through the end of the housing along the length direction of the housing and slides with the end of the housing. A second locking rod that passes through the end of the housing and slides with the end of the housing is provided parallel to the upper part of the first locking rod. The second locking rod is engaged with the locking groove. The first locking rod and the second locking rod move synchronously along the length direction of the housing.

[0008] Preferably, a synchronization plate is provided on the outside of the housing, which moves synchronously with the first locking rod and the second locking rod. The ends of the first locking rod and the second locking rod are both fixedly mounted on the synchronization plate. A bracket is provided on the side of the synchronization plate away from the housing. An extension rod is fixedly mounted on the end of the synchronization plate away from the housing along the length direction of the housing. The extension rod passes through the bracket and slides with the bracket. There is a gap between the synchronization plate and the bracket. A first spring is provided in the gap along the length direction of the housing. The two ends of the first spring are respectively fixedly mounted on the synchronization plate and the bracket.

[0009] Preferably, a lifting unit is provided below the replacement port. The lifting unit includes a lifting rod that moves vertically. A lifting sleeve is fitted on the lower part of the lifting rod. The lifting sleeve and the lifting rod slide in a vertical direction. An inflation chamber is fixedly provided on one side of the outer shell. A pressing plate is moved vertically above the inflation chamber. A corrugated sleeve is fixedly provided between the pressing plate and the inflation chamber. The pressing plate, the inflation chamber, and the corrugated sleeve together form an inflation cavity. A second spring is vertically provided in the inflation cavity. The two ends of the second spring are fixedly connected to the bottom of the pressing plate and the inflation chamber, respectively. The inflation cavity is connected to the lifting sleeve. A one-way valve is provided on the side wall of the inflation cavity. The one-way valve allows outside air to flow into the inflation cavity.

[0010] Preferably, an on / off valve is also provided on the side wall of the inflation chamber.

[0011] Preferably, the drive unit includes a rotary driver disposed at the end of the housing, a threaded rod disposed inside the housing along the length of the housing, the end of the threaded rod being fixedly connected to the output end of the rotary driver, the threaded rod passing through the movable plate and threadedly engaging with the movable plate, a guide rod disposed parallel to one side of the threaded rod, the two ends of the guide rod being fixedly connected to the two ends of the housing respectively, the guide rod passing through the movable plate and slidingly engaging with the movable plate along the length of the housing.

[0012] The advantages of this invention compared to the prior art are:

[0013] 1. This treatment device is always in operation. An air inlet is located at the bottom of the vent. Exhaust gas enters from the bottom of the casing, passes through the filter plates, and exits from the vent, thus achieving the filtration function. A movable plate is slidably installed along the length of the casing. Two filter plates are mounted on the movable plate. When the movable plate is located at either end of the casing, one of the two storage slots on the movable plate is connected to the vent, while the other storage slot is connected to one of the two replacement ports. The filter plates are made of activated carbon, so the working time of each filter plate needs to be preset. This is because the filtration performance of the filter plates gradually decreases after prolonged use, resulting in the filter plates being unable to filter the exhaust gas effectively. Presetting the working time of the filter plates refers to presetting the start-up time of the drive unit, so that the drive unit starts intermittently. After each start-up, the moving plate moves from one end of the housing to the other end of the housing. The moving plate can then carry the filter plate that needs to be replaced to one of the replacement ports. The operator can then replace the filter plate that needs to be replaced. In this way, the processing device itself does not need to stop operating during the replacement process, thus ensuring the normal operation of the entire electrophoretic coating operation and ensuring that the production output is not affected.

[0014] 2. A cover is installed on the replacement port to ensure that exhaust gas does not overflow from the replacement port through the space between the outer casing and the moving plate when the moving plate is moved and switched, thereby protecting the surrounding environment and the health of the staff.

[0015] 3. By installing a lifting unit below the replacement port, the filter plate can be lifted by the lifting unit when the filter plate is removed, so that the filter plate can be removed smoothly, reducing the workload of replacing the filter plate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to this utility model.

[0017] Figure 2 This utility model relates to a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption. Figure 1A magnified view of a portion of point A in the middle.

[0018] Figure 3 This is a cross-sectional three-dimensional schematic diagram of a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to this utility model.

[0019] Figure 4 This is a side view of a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to this utility model.

[0020] Figure 5 This utility model relates to a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption. Figure 4 Schematic diagram of cross-section at point BB.

[0021] Figure 6 This is a cross-sectional three-dimensional schematic diagram of a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to this utility model. Figure 1 .

[0022] Figure 7 This is a cross-sectional three-dimensional schematic diagram of a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to this utility model. Figure 2 .

[0023] Figure 8 This utility model relates to a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption. Figure 7 A magnified view of a portion of point C.

[0024] Figure 9 This is a cross-sectional three-dimensional schematic diagram of a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to this utility model. Figure 3 .

[0025] Figure 10 This utility model relates to a comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption. Figure 9 A magnified view of a portion of point D.

[0026] Figure 11 This is a schematic diagram of the process flow of an existing waste gas environmental protection treatment system.

[0027] The numbers on the map are:

[0028] 1. Outer shell; 11. Vent; 12. Replacement port; 2. Moving plate; 21. Filter plate; 22. Storage slot; 3. Drive unit; 31. Guide rod; 32. Threaded rod; 33. Rotary actuator; 4. Cover plate; 41. Locking slot; 5. Locking unit; 51. First locking rod; 52. Second locking rod; 53. Synchronization plate; 54. Extension rod; 55. First spring; 56. Bracket; 6. Lifting unit; 61. Lifting rod; 62. Lifting sleeve; 63. Inflation chamber; 64. Pressing plate; 65. Corrugated sleeve; 66. Second spring; 67. One-way valve; 68. Switch valve. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0030] Reference Figure 1 , Figure 3 and Figure 6 A comprehensive treatment device for electrophoretic coating exhaust gas based on activated carbon adsorption includes a housing 1. The housing 1 has a rectangular structure and an air vent 11 is provided at the top of the housing 1. A replacement port 12 is provided on both sides of the air vent 11 along the length of the housing 1. A movable plate 2 is provided inside the housing 1 along the length of the housing 1. The movable plate 2 has two storage slots 22. The storage slots 22 store filter plates 21 made of activated carbon. When the movable plate 2 is in a static state, one of the storage slots 22 on the movable plate 2 is connected to the air vent 11, and the other storage slot 22 is connected to one of the replacement ports 12. A drive unit 3 for driving the movable plate 2 to move is provided at the end of the housing 1.

[0031] When activated carbon is used in automotive electrophoretic coating, its performance degrades rapidly, requiring frequent replacement. However, most existing treatment devices use built-in activated carbon, which necessitates disconnecting the treatment device from the electrophoretic coating process when replacing it, thus reducing production efficiency. Alternatively, multiple treatment devices can be used to ensure uninterrupted production efficiency, but this is more costly.

[0032] This processing device is always in operation. An air inlet is located at the lower part of the vent 11. Exhaust gas enters from the lower part of the outer casing 1, passes through the filter plate 21, and exits from the vent 11, thus achieving the filtration function. A movable plate 2 is slidably disposed within the outer casing 1 along its length. Two filter plates 21 are mounted on the movable plate 2. When the movable plate 2 is located at either end of the outer casing 1, one of the two storage slots 22 on the movable plate 2 is connected to the vent 11, while the other storage slot 22 is connected to one of the two replacement ports 12. The filter plate 21 is made of activated carbon, so the working time of each filter plate 21 needs to be preset. This is because after long-term use, the filtration performance of the filter plate 21 will gradually decrease, which will cause the filter plate 21 to fail to filter the exhaust gas well. Presetting the working time of the filter plate 21 refers to preset the start time of the drive unit 3, so that the drive unit 3 starts intermittently. After each start, the moving plate 2 moves from one end of the housing 1 to the other end of the housing 1. The moving plate 2 can then carry the filter plate 21 that needs to be replaced to the bottom of one of the replacement ports 12. The staff can then replace the filter plate 21 that needs to be replaced. In this way, the processing device itself does not need to stop operating during the replacement process, thus ensuring the normal operation of the entire electrophoretic coating operation and ensuring that the output is not affected.

[0033] Reference Figure 9 and Figure 10 A cover plate 4 is hinged to the replacement port 12. A locking groove 41 is provided on the end of the cover plate 4 away from itself and the hinge point of the replacement port 12. A locking unit 5 is provided at the end of the outer shell 1 to lock the cover plate 4 that is closed on the replacement port 12. The locking unit 5 includes a first locking rod 51 that passes through the end of the outer shell 1 along the length direction of the outer shell 1 and slides with the end of the outer shell 1. A second locking rod 52 that passes through the end of the outer shell 1 and slides with the end of the outer shell 1 is provided parallel to the upper part of the first locking rod 51. The second locking rod 52 is engaged with the locking groove 41. The first locking rod 51 and the second locking rod 52 move synchronously along the length direction of the outer shell 1.

[0034] Reference Figure 5 and Figure 6A synchronization plate 53 is provided on the outside of the outer casing 1, which moves synchronously with the first locking rod 51 and the second locking rod 52. The ends of the first locking rod 51 and the second locking rod 52 are fixedly mounted on the synchronization plate 53. A bracket 56 is provided on the side of the synchronization plate 53 away from the outer casing 1. An extension rod 54 is fixedly mounted along the length direction of the outer casing 1 at the end of the synchronization plate 53 away from the outer casing 1. The extension rod 54 passes through the bracket 56 and slides with the bracket 56. There is a gap between the synchronization plate 53 and the bracket 56. A first spring 55 is provided in the gap along the length direction of the outer casing 1. The two ends of the first spring 55 are fixedly mounted on the synchronization plate 53 and the bracket 56, respectively.

[0035] When the moving plate 2 moves to one end of the outer shell 1 under the drive of the drive unit 3, the first locking rod 51 will be pushed by the moving plate 2. Then the first locking rod 51 and the second locking rod 52 move synchronously. The second locking rod 52 moves out of the locking groove 41 of the cover plate 4, and the gap between the bracket 56 and the synchronous plate 53 gradually narrows. The first spring 55 is gradually compressed. This change allows it to be opened smoothly. Then the filter plate 21 located below the replacement port 12 can be taken out for replacement. After the replacement is completed, the cover plate 4 can be closed. When the drive unit 3 is started again, the moving plate 2 moves along the length of the outer shell 1 towards the other end of the outer shell 1. In this way, the first spring 55 can gradually return to its original state. During the return process, the first spring 55 pushes the synchronous plate 53, so that the first locking rod 51 and the second locking rod 52 are reset. The reset second locking rod 52 is inserted into the locking groove 41 of the cover plate 4, thus realizing the re-locking of the cover plate 4. The cover plate 4 is installed on the replacement port 12 because the device is always in operation when the moving plate 2 moves along the length of the outer shell 1. If the cover plate 4 is not installed, some of the exhaust gas inside the outer shell 1 will overflow from the replacement port 12 when the moving plate 2 moves, which will cause harm to the staff and pollute the environment. The installation of the cover plate 4 can avoid the above situation.

[0036] Reference Figure 2 , Figure 7 and Figure 8A lifting unit 6 is provided below the replacement port 12. The lifting unit 6 includes a lifting rod 61 that moves vertically. A lifting sleeve 62 is sleeved on the lower part of the lifting rod 61. The lifting sleeve 62 and the lifting rod 61 slide in a vertical direction. An inflation chamber 63 is fixedly provided on one side of the outer shell 1. A pressing plate 64 is moved vertically above the inflation chamber 63. A corrugated sleeve 65 is fixedly provided between the pressing plate 64 and the inflation chamber 63. The pressing plate 64, the inflation chamber 63 and the corrugated sleeve 65 together form an inflation cavity. A second spring 66 is vertically provided in the inflation cavity. The two ends of the second spring 66 are fixedly connected to the bottom of the pressing plate 64 and the inflation chamber 63, respectively. The inflation cavity is connected to the lifting sleeve 62. A one-way valve 67 is provided on the side wall of the inflation chamber 63. The one-way valve 67 allows outside air to flow into the inflation cavity.

[0037] Reference Figure 2 A switch valve 68 is also installed on the side wall of the air chamber 63.

[0038] When the filter plate 21 needs to be replaced, it is difficult to remove it directly since it is located in the storage slot 22. Therefore, a lifting unit 6 is installed below the replacement port 12. When in use, the pressing plate 64 is pressed down, so that the air in the inflation chamber is injected into the lifting sleeve 62, causing the lifting rod 61 in the lifting sleeve 62 to rise vertically. The lifting rod 61 can then push the filter plate 21 out of the storage slot 22, thus allowing the filter plate 21 to be removed smoothly. Since the one-way valve 67 allows outside air to flow into the inflation chamber, and the switch valve 68 is in the closed state at this time, the outside air cannot flow out after flowing into the inflation chamber. The inflation chamber is connected to the lifting sleeve 62, which allows the lifting rod 61 to move upward. After the filter plate 21 is removed, the switch valve 68 is opened, and the inflation chamber is connected to the outside. The air in the lifting sleeve 62 is automatically expelled under the pressure of the lifting rod 61, thus causing the lifting rod to descend and reset vertically. This ensures that the movable plate 2 can move smoothly.

[0039] Reference Figure 3 and Figure 4 The drive unit 3 includes a rotary driver 33 disposed at the end of the housing 1. A threaded rod 32 is disposed inside the housing 1 along the length direction of the housing 1. The end of the threaded rod 32 is fixedly connected to the output end of the rotary driver 33. The threaded rod 32 passes through the movable plate 2 and is threadedly engaged with the movable plate 2. A guide rod 31 is disposed parallel to one side of the threaded rod 32. The two ends of the guide rod 31 are fixedly connected to the two ends of the housing 1 respectively. The guide rod 31 passes through the movable plate 2 and is slidably engaged with the movable plate 2 along the length direction of the housing 1.

[0040] The rotary drive 33 is preferably a servo motor. When the filter plate 21 needs to be replaced, the rotary drive 33 is started. The rotary drive 33 drives the threaded rod 32 to rotate, thereby causing the moving plate 2 to move back and forth along the length of the outer shell 1.

[0041] Working Principle: This treatment device is always in operation. An air inlet is located at the lower part of the vent 11. Exhaust gas enters from the lower part of the outer casing 1, passes through the filter plate 21, and exits from the vent 11, thus achieving the filtration function. A movable plate 2 is slidably installed along the length of the outer casing 1. Two filter plates 21 are mounted on the movable plate 2. When the movable plate 2 is located at either end of the outer casing 1, one of the two storage slots 22 on the movable plate 2 is connected to the vent 11, while the other storage slot 22 is connected to one of the two replacement ports 12. Operators replace the filter plate 21 located below the replacement port 12 through the replacement port 12.

[0042] When the moving plate 2 moves to one end of the outer shell 1 under the drive of the drive unit 3, the first locking rod 51 will be pushed by the moving plate 2. Then the first locking rod 51 and the second locking rod 52 move synchronously. The second locking rod 52 moves out of the locking groove 41 of the cover plate 4, and the gap between the bracket 56 and the synchronous plate 53 gradually narrows. The first spring 55 is gradually compressed. This change allows it to be opened smoothly. Then the filter plate 21 located below the replacement port 12 can be taken out for replacement. After the replacement is completed, the cover plate 4 can be closed. When the drive unit 3 is started again, the moving plate 2 moves along the length of the outer shell 1 towards the other end of the outer shell 1. In this way, the first spring 55 can gradually return to its original state. During the return process, the first spring 55 pushes the synchronous plate 53, so that the first locking rod 51 and the second locking rod 52 are reset. The reset second locking rod 52 is inserted into the locking groove 41 of the cover plate 4, thus realizing the re-locking of the cover plate 4.

[0043] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A comprehensive treatment device for electrophoretic coating exhaust gas based on activated carbon adsorption, comprising an outer shell (1); Its features are, The outer shell (1) has a rectangular structure. A vent (11) is provided on the upper part of the outer shell (1). A replacement port (12) is provided on both sides of the vent (11) along the length of the outer shell (1). A movable plate (2) is provided inside the outer shell (1) along the length of the outer shell (1). Two storage slots (22) are provided on the movable plate (2). A filter plate (21) is stored in the storage slot (22). The filter plate (21) is made of activated carbon. When the movable plate (2) is in a static state, one of the storage slots (22) on the movable plate (2) is connected to the vent (11), and the other storage slot (22) is connected to one of the replacement ports (12). A drive unit (3) for driving the movable plate (2) to move is provided at the end of the outer shell (1).

2. The comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to claim 1, characterized in that, A cover plate (4) is hinged to the replacement port (12). A locking groove (41) is provided on the end of the cover plate (4) away from itself and the hinge point of the replacement port (12). A locking unit (5) is provided at the end of the outer shell (1) to lock the cover plate (4) that is closed on the replacement port (12). The locking unit (5) includes a first locking rod (51) that passes through the end of the outer shell (1) along the length direction of the outer shell (1) and slides with the end of the outer shell (1). A second locking rod (52) that passes through the end of the outer shell (1) and slides with the end of the outer shell (1) is provided parallel to the upper part of the first locking rod (51). The second locking rod (52) is engaged with the locking groove (41). The first locking rod (51) and the second locking rod (52) move synchronously along the length direction of the outer shell (1).

3. The comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to claim 2, characterized in that, A synchronization plate (53) is provided on the outside of the outer shell (1) and moves synchronously with the first locking rod (51) and the second locking rod (52). The ends of the first locking rod (51) and the second locking rod (52) are fixedly mounted on the synchronization plate (53). A bracket (56) is provided on the side of the synchronization plate (53) away from the outer shell (1). An extension rod (54) is fixedly mounted along the length direction of the outer shell (1) at the end of the synchronization plate (53) away from the outer shell (1). The extension rod (54) passes through the bracket (56) and slides with the bracket (56). There is a gap between the synchronization plate (53) and the bracket (56). A first spring (55) is provided in the gap along the length direction of the outer shell (1). The two ends of the first spring (55) are fixedly mounted on the synchronization plate (53) and the bracket (56) respectively.

4. The comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to claim 1, characterized in that, A lifting unit (6) is provided below the replacement port (12). The lifting unit (6) includes a lifting rod (61) that moves vertically. A lifting sleeve (62) is fitted on the lower part of the lifting rod (61). The lifting sleeve (62) and the lifting rod (61) slide in a vertical direction. An inflation chamber (63) is fixedly provided on one side of the outer shell (1). A pressing plate (64) is provided on the upper part of the inflation chamber (63) that moves vertically. The pressing plate (64) and the inflation chamber (63) are connected. A corrugated sleeve (65) is fixedly installed between the pressure plate (64), the inflation chamber (63), and the corrugated sleeve (65) together form an inflation chamber. A second spring (66) is vertically installed inside the inflation chamber. The two ends of the second spring (66) are fixedly connected to the bottom of the pressure plate (64) and the inflation chamber (63), respectively. The inflation chamber is connected to the lifting sleeve (62). A one-way valve (67) is installed on the side wall of the inflation chamber (63). The one-way valve (67) allows outside air to flow into the inflation chamber.

5. The comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to claim 4, characterized in that, An on / off valve (68) is also provided on the side wall of the inflation chamber (63).

6. The comprehensive treatment device for electrophoretic coating waste gas based on activated carbon adsorption according to claim 1, characterized in that, The drive unit (3) includes a rotary driver (33) disposed at the end of the housing (1). A threaded rod (32) is disposed inside the housing (1) along the length direction of the housing (1). The end of the threaded rod (32) is fixedly connected to the output end of the rotary driver (33). The threaded rod (32) passes through the movable plate (2) and is threadedly engaged with the movable plate (2). A guide rod (31) is disposed parallel to one side of the threaded rod (32). The two ends of the guide rod (31) are fixedly connected to the two ends of the housing (1) respectively. The guide rod (31) passes through the movable plate (2) and is slidably engaged with the movable plate (2) along the length direction of the housing (1).

Images