Activated carbon waste gas treatment system for cigarette package printing workshop

Abstract

The invention discloses an activated carbon waste gas treatment system for a cigarette package printing workshop, and relates to the technical field of waste gas treatment, the activated carbon waste gas treatment system comprises a waste gas collection device, a pretreatment device, an activated carbon adsorption tank, a catalytic combustion device and a desorption regeneration device, the bottom end of the activated carbon adsorption tank is provided with a gas inlet and outlet, and the top end of the activated carbon adsorption tank is provided with an exhaust port; a manhole is formed in one side of the activated carbon adsorption tank, an upper net partition plate and a lower net partition plate are arranged in the activated carbon adsorption tank, and activated carbon particles are arranged between the upper net partition plate and the lower net partition plate. The distance between the upper net partition plate and the lower net partition plate can be adjusted through the lifting driving mechanism, activated carbon particles are compacted, and the adsorption effect is improved. The distributor is arranged at the gas inlet in the adsorption tank, so that the waste gas is uniformly dispersed, the problems of low adsorption and regeneration efficiency, inconvenience in maintenance and the like of a traditional waste gas treatment system are effectively solved, and the waste gas is efficiently and stably treated to reach environmental protection standards.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and particularly to an activated carbon waste gas treatment system for a cigarette packaging printing workshop. Background Art

[0002] In the cigarette packaging printing industry, a large amount of materials such as ink and organic solvents are used in the production process, inevitably generating waste gas containing pollutants such as volatile organic compounds (VOCs). If these waste gases are directly discharged without effective treatment, they will not only cause serious harm to the physical health of the workers in the workshop, such as causing respiratory diseases and nervous system damage, and long-term exposure may even cause cancer; but also pollute the surrounding atmospheric environment, and are one of the important factors for the formation of bad weather such as smog and photochemical smog.

[0003] At present, the activated carbon adsorption method is a common means for treating such waste gas. Although it has a certain degree of effectiveness, there are still many problems to be solved in the traditional activated carbon waste gas treatment system. For example, the activated carbon is not evenly distributed in the adsorption tank, resulting in insufficient contact between the waste gas and the activated carbon, and low adsorption efficiency; after the activated carbon is saturated in adsorption, the regeneration process is not efficient enough, affecting the continuity and stability of the overall waste gas treatment system; there are inconveniences in the maintenance of the equipment, such as difficulties in the replacement of the activated carbon and the cleaning of the interior of the equipment, increasing the maintenance cost and time cost. Therefore, it is urgent to develop an activated carbon waste gas treatment system for a cigarette packaging printing workshop that can overcome the above defects, is efficient, stable and easy to maintain. Summary of the Invention

[0004] In order to solve the problems mentioned in the above background art, the present invention provides an activated carbon waste gas treatment system for a cigarette packaging printing workshop.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An activated carbon waste gas treatment system for a cigarette packaging printing workshop, comprising a waste gas collection device, a pretreatment device, an activated carbon adsorption tank, a catalytic combustion device and a desorption and regeneration device. The bottom end of the activated carbon adsorption tank is provided with an air inlet and discharge port, the top end of the activated carbon adsorption tank is provided with an exhaust port, one side of the activated carbon adsorption tank is provided with a manhole, the interior of the activated carbon adsorption tank is respectively provided with an upper grid partition and a lower grid partition, activated carbon particles are arranged between the upper grid partition and the lower grid partition, and a lifting drive mechanism is provided on the inner wall of the top end of the activated carbon adsorption tank, and the output end of the lifting drive mechanism is fixed to the upper grid partition.

[0006] Preferably, a distributor is installed at a position corresponding to the air inlet and discharge port inside the activated carbon adsorption tank. A plurality of distribution pipes are arranged in an array around the distributor, and a plurality of exhaust holes are equidistantly distributed at the top ends of the distribution pipes.

[0007] Preferably, the lifting drive mechanism includes a hydraulic cylinder fixed to the inner wall of the top end of the activated carbon adsorption tank. The top end of the upper grid plate is fixed with a transmission box, and the output shaft of the hydraulic cylinder is fixed to the top end of the transmission box.

[0008] Preferably, a rotating frame is rotatably installed inside one end of the upper grid plate where a storage opening is provided, and a stirrer is rotatably installed on the rotating frame.

[0009] Preferably, an elastic telescopic rod is fixed inside the transmission box. The top end of the elastic telescopic rod is fixed with a connecting bracket, and the bottom end of the connecting bracket is fixed with a vertical rack. A horizontal transmission shaft is rotatably installed at the top end of the upper grid plate. Both ends of the horizontal transmission shaft are fixed with first gears. A second gear is fixed on the connecting bracket. One of the first gears meshes with the vertical rack, and the other first gear meshes with the second gear.

[0010] Preferably, a lifting rod is fixed to the top end of the connecting bracket. The top end of the connecting bracket extends out of the transmission box movably. A baffle is installed on the fixed part of the hydraulic cylinder, and the position of the baffle corresponds to that of the lifting rod.

[0011] Preferably, an internal hexagonal sleeve is rotatably installed on the rotating frame. The internal hexagonal sleeve is fixed to the stirrer. A drive shaft is rotatably installed on the inner wall of the top end of the activated carbon adsorption tank. The drive shaft is driven to rotate by a first rotary motor, and a prism plug corresponding and matching with the internal hexagonal sleeve is fixed to the bottom end of the drive shaft.

[0012] Preferably, an activated carbon inlet and a hot air inlet pipe are provided at the top end of the desorption and regeneration device. An air outlet is provided at the bottom end of the desorption and regeneration device. A stirring shaft is rotatably installed inside the desorption and regeneration device, and multiple groups of stirring blades are equidistantly distributed on the stirring shaft.

[0013] Preferably, the top end of the stirring shaft extends out of the desorption and regeneration device and is connected to the hot air inlet pipe through a rotary joint. The stirring shaft and the stirring blades are hollow inside and communicate with each other. Multiple air jet openings are provided on the stirring blades.

[0014] Preferably, the air jet openings are equidistantly distributed on the stirring blades, and a scraper is fixed on the stirring blades. The scraper contacts the inner wall of the desorption and regeneration device. A second rotary motor is fixed to the top end of the desorption and regeneration device. Pulley wheels are fixed to the output shaft of the second rotary motor and the outside of the stirring shaft respectively. A belt is sleeved between the outside of the two pulley wheels. An observation window is provided on the outside of the desorption and regeneration device. The observation window is rectangular, and a transparent glass is provided inside the observation window. A flow meter is installed on the hot air inlet pipe, and an anti-flushing branch is connected to the hot air inlet pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The distance between the upper net partition and the lower net partition is adjusted by the lifting drive mechanism to compact the activated carbon particles, reduce the voids between the particles, enable the exhaust gas to contact the activated carbon surface more fully, improve the adsorption efficiency of pollutants in the exhaust gas. The distributor is arranged so that after the exhaust gas enters from the intake and discharge port, it is evenly dispersed in the activated carbon adsorption tank through the distribution pipe and the exhaust holes, and comes into full contact with the activated carbon particles to ensure uniform adsorption effect. The stirrer on the upper net partition can stir at a low speed during the warm water cleaning of the activated carbon before it is transferred to the desorption and regeneration device to clean the pollutants that are partially soluble in water.

[0016] 2. When not in use, the stirrer on the upper net partition can automatically rotate to the horizontal state and be stored in the storage port, ensuring that there is no interference when the upper net partition moves downward. When in use, it can automatically rotate to the vertical state, with a compact structure and convenient use.

[0017] 3. In the desorption and regeneration device, the stirring shaft is connected to the hot air inlet pipe through a rotary joint. The hot air is ejected from the jet ports of the stirring blades and directly acts on the activated carbon particles. At the same time, the stirring blades stir the activated carbon, greatly improving the contact efficiency between the hot air and the activated carbon, accelerating the desorption process, and enhancing the regeneration efficiency.

[0018] 4. The scraper on the stirring blade scrapes the residual activated carbon particles on the tank wall during stirring to prevent incomplete discharge; the backwashing branch of the hot air inlet pipe can introduce cleaning liquid and eject it from the jet ports to wash the inner wall of the device, ensuring the internal cleanliness of the equipment and maintaining a good desorption and regeneration environment.

[0019] 5. The observation window facilitates the staff to grasp the regeneration situation of the activated carbon in real time; the flowmeter accurately measures the hot air flow rate, which is conducive to precise control according to requirements, ensuring the stable and efficient progress of the desorption and regeneration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is the flow chart of the present invention; Figure 2 is the perspective view of the activated carbon adsorption tank of the present invention; Figure 3 is the front view cross-sectional view of the activated carbon adsorption tank of the present invention; Figure 4 is the perspective cross-sectional view of the activated carbon adsorption tank of the present invention; Figure 5Schematic diagram of the distributor structure of the present invention; Figure 6 Top view of the upper network partition of the present invention; Figure 7 Schematic diagram of the retracted state of the agitator on the upper network partition of the present invention; Figure 8 Three-dimensional view of the lowered state of the agitator on the upper network partition of the present invention; Figure 9 Front view of the lowered state of the agitator on the upper network partition of the present invention; Figure 10 Three-dimensional view of the desorption and regeneration device of the present invention; Figure 11 Cross-sectional view of the desorption and regeneration device of the present invention; Figure 12 is Figure 11 Enlarged detail view of position A in; In the figure: 1. Exhaust gas collection device; 2. Activated carbon adsorption tank; 201. Intake and discharge port; 202. Exhaust port; 203. Manhole; 204. Lower network partition; 206. Distributor; 2061. Distribution pipe; 2062. Exhaust hole; 3. Pretreatment device; 4. Catalytic combustion device; 5. Desorption and regeneration device; 501. Activated carbon addition port; 502. Outlet discharge port; 503. Observation window; 504. Agitation shaft; 505. Hot air inlet pipe; 506. Backwashing branch; 507. Flowmeter; 508. Second rotary motor; 509. Pulley; 510. Belt; 511. Agitation blade; 512. Scraper; 513. Jet port; 7. Upper network partition; 701. Transmission box; 7011. Elastic telescopic rod; 7012. Lifting rod; 7013. Connecting bracket; 7014. Vertical rack; 7015. Horizontal transmission shaft; 7016. First gear; 702. Hydraulic cylinder; 7021. Baffle; 703. Rotating frame; 7031. Second gear; 7032. Internal hexagonal sleeve; 704. Agitator; 705. Storage port; 8. Drive shaft; 801. First rotary motor; 802. Prismatic plug. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1 Refer to Figures 1-12, an activated carbon waste gas treatment system for a cigarette packaging and printing workshop, comprising a waste gas collection device 1, a pretreatment device 3, an activated carbon adsorption tank 2, a catalytic combustion device 4 and a desorption and regeneration device 5, wherein the bottom end of the activated carbon adsorption tank 2 is provided with an air intake and discharge port 201, the top end of the activated carbon adsorption tank 2 is provided with an exhaust port 202, and one side of the activated carbon adsorption tank 2 is provided with a manhole 203, so that the staff can enter the activated carbon adsorption tank 2 to perform equipment inspection, add activated carbon or maintenance operations, etc., and the interior of the activated carbon adsorption tank 2 is respectively provided with an upper screen partition 7 and a lower screen partition 204, and activated carbon particles are arranged between the upper screen partition 7 and the lower screen partition 204, and a lifting drive mechanism is provided on the inner wall of the top end of the activated carbon adsorption tank 2, and the output end of the lifting drive mechanism is fixed to the upper screen partition 7; The waste gas collection device 1 is arranged at each waste gas emission point of the printing equipment, such as above the ink tank of the printing machine, the outlet of the drying channel, etc., and an air collecting hood is installed. The waste gas collected by each air collecting hood is collected into the main pipeline through the ventilation duct, and then transported to the pretreatment device 3. The pretreatment device 3 may contain impurities such as ink particles and dust in the waste gas, which will affect the adsorption effect and service life of the activated carbon. Therefore, before entering the activated carbon adsorption tank 2, a pretreatment device 3 is set. The pretreatment device 3 usually adopts a filtering method and is composed of a primary filter and a medium filter. The primary filter can remove larger particles of impurities, and the medium filter further removes smaller dust and some aerosols to ensure that the waste gas entering the activated carbon adsorption tank 2 is relatively clean.

[0024] Activated carbon has a huge specific surface area and rich microporous structure, and has a strong adsorption capacity for VOCs. The exhaust gas slowly passes through the activated carbon layer in the activated carbon adsorption tank 2, and VOCs are adsorbed on the surface of the activated carbon. The treated gas is directly discharged. As the VOCs adsorbed by the activated carbon gradually increase, the adsorption capacity of the activated carbon will gradually decrease. In order to restore the adsorption performance of the activated carbon, it is necessary to desorb and regenerate it. The activated carbon particles in the activated carbon adsorption tank 2 are transferred to the desorption regeneration device 5, and hot air is introduced into the desorption regeneration device 5 to heat up the VOCs on the surface of the activated carbon and desorb them. The hot air is discharged from the desorption regeneration device 5 and then introduced into the catalytic combustion device 4, in which a catalyst is installed. Under the action of the catalyst, VOCs undergo oxidation reaction at a lower temperature to generate carbon dioxide and water. The heat released by the catalytic combustion reaction can be used to heat the hot air for desorption, realize energy recovery and utilization, and reduce the operating cost of the system.

[0025] Driving the upper net partition plate 7 to lift through the lifting drive mechanism can adjust the distance between the upper net partition plate 7 and the lower net partition plate 204, and can compact the activated carbon particles in the activated carbon adsorption tank 2. Compacting the activated carbon particles can reduce the voids between the particles, so that when the waste gas passes through the activated carbon layer, the contact with the surface of the activated carbon is more sufficient. More waste gas molecules have the opportunity to contact the adsorption sites of the activated carbon, thereby improving the adsorption efficiency of pollutants in the waste gas.

[0026] Among them, a distributor 206 is installed at the position corresponding to the air inlet and discharge port 201 inside the activated carbon adsorption tank 2. A plurality of distribution pipes 2061 are arranged in an array around the distributor 206, and a plurality of exhaust holes 2062 are equidistantly distributed at the top ends of the distribution pipes 2061; After the waste gas enters the distributor 206 through the air inlet and discharge port 201, it flows out evenly through the distribution pipes 2061 and the exhaust holes 2062, can be evenly dispersed inside the activated carbon adsorption tank 2, and is in full contact with the activated carbon particles, improving the adsorption effect.

[0027] Embodiment 2 Refer to Figures 1-12 , the difference between this embodiment and Embodiment 1 is that the lifting drive mechanism includes a hydraulic cylinder 702 fixed on the inner wall of the top end of the activated carbon adsorption tank 2. A transmission box 701 is fixed at the top end of the upper net partition plate 7. The output shaft of the hydraulic cylinder 702 is fixed to the top end of the transmission box 701. By extending and shortening the hydraulic cylinder 702, the upper net partition plate 7 can be driven to lift and move.

[0028] Among them, a rotating frame 703 is rotatably installed inside one end of the upper net partition plate 7 where a storage opening 705 is formed. A stirrer 704 is rotatably installed on the rotating frame 703. An elastic telescopic rod 7011 is fixed inside the transmission box 701. A connecting bracket 7013 is fixed to the top end of the elastic telescopic rod 7011. A vertical rack 7014 is fixed to the bottom end of the connecting bracket 7013. A horizontal transmission shaft 7015 is rotatably installed at the top end of the upper net partition plate 7. First gears 7016 are fixed to both ends of the horizontal transmission shaft 7015. A second gear 7031 is fixed to the connecting bracket 7013. One of the first gears 7016 meshes with the vertical rack 7014, and the other first gear 7016 meshes with the second gear 7031; When the elastic telescopic rod 7011 is in the uncompressed state, it will drive the vertical rack 7014 to move to the highest position. At this time, the stirrer 704 rotates to the horizontal state and is stored in the storage port 705, ensuring that there is no interference when the upper net partition 7 moves downward. When the activated carbon is deactivated, before being transferred to the desorption and regeneration device 5, the activated carbon particles can be washed with warm water. Alcohols such as ethanol and isopropanol, some water-soluble resins and additives can be directly washed away by water. When adding warm water for cleaning, it drives the upper net partition 7 to move to the highest position. Since the top end of the connecting bracket 7013 is fixed with a lifting rod 7012, the top end of the connecting bracket 7013 extends outward from the transmission box 701 movably. A baffle 7021 is installed on the fixed part of the hydraulic cylinder 702, and the position of the baffle 7021 corresponds to the lifting rod 7012. The baffle 7021 will press down the lifting rod 7012 and compress the elastic telescopic rod 7011, causing the vertical rack 7014 to move downward, and driving the stirrer 704 to rotate 90 degrees through the meshing transmission between the vertical rack 7014, the first gear 7016 and the second gear 7031, and being in the vertical state. By driving the stirrer 704 to rotate, the activated carbon particles can be slowly stirred to avoid damaging the physical properties of the activated carbon particles. After cleaning, the activated carbon particles are then transferred to the desorption and regeneration device 5.

[0029] Among them, an internal hexagonal sleeve 7032 is rotatably installed on the rotating frame 703, the internal hexagonal sleeve 7032 is fixed to the stirrer 704, a drive shaft 8 is rotatably installed on the inner wall of the top end of the activated carbon adsorption tank 2, the drive shaft 8 is driven to rotate by a first rotating motor 801, and a prism plug 802 corresponding to and matching the internal hexagonal sleeve 7032 is fixed to the bottom end of the drive shaft 8; When there is an excessive chamfer at the opening of the internal hexagonal sleeve 7032, it is ensured that the prism plug 802 can be inserted without hindrance even when the internal hexagonal sleeve 7032 is slightly tilted. When the upper net partition 7 moves to the highest position, the prism plug 802 is inserted into the internal hexagonal sleeve 7032, and the stirrer 704 can be driven to rotate and stir by the first rotating motor 801.

[0030] Embodiment 3 Refer to Figures 1-12 This embodiment is different from Embodiment 1 in that an activated carbon inlet 501 and a hot air inlet pipe 505 are provided at the top end of the desorption and regeneration device 5, an air outlet 502 is provided at the bottom end of the desorption and regeneration device 5, a stirring shaft 504 is rotatably installed in the desorption and regeneration device 5, and multiple groups of stirring blades 511 are equidistantly distributed on the stirring shaft 504; The activated carbon inlet 501 is used to add deactivated activated carbon particles. The stirring shaft 504 rotates driven by a motor, driving the stirring blades 511 to slowly stir the activated carbon in the tank, improving the looseness of the activated carbon, increasing the contact rate between the activated carbon and hot air, and improving the regeneration efficiency.

[0031] Among them, the top end of the stirring shaft 504 extends to the outside of the desorption and regeneration device 5 and is connected to the hot air inlet pipe 505 through a rotary joint. The inside of the stirring shaft 504 and the stirring blade 511 is hollow and connected. A plurality of air jet openings 513 are provided on the stirring blade 511. The hot air inlet pipe 505 is used to convey hot air into the inside of the stirring shaft 504. The air passes through the internal channels of the stirring shaft 504 and the stirring blade 511 and is ejected from the air jet openings 513, directly dispersed into the activated carbon particles, further improving the regeneration efficiency.

[0032] Among them, the air jet openings 513 are equidistantly distributed on the stirring blade 511, and a scraping plate 512 is fixed on the stirring blade 511. The scraping plate 512 is in contact with the inner wall of the desorption and regeneration device 5. A second rotary motor 508 is fixed at the top end of the desorption and regeneration device 5. Pulley 509 is fixed on the output shaft of the second rotary motor 508 and the outside of the stirring shaft 504. A belt 510 is sleeved between the outside of the two pulleys 509. An observation window 503 is opened on the outside of the desorption and regeneration device 5. The observation window 503 is rectangular, and a transparent glass is provided inside the observation window 503. A flow meter 507 is installed on the hot air inlet pipe 505, and an anti-flushing branch 506 is connected to the hot air inlet pipe 505; The second rotary motor 508 drives the stirring shaft 504 to rotate through the belt 510. This transmission method has the advantages of stable transmission and low noise, and can provide stable power output for the stirring shaft 504. During the stirring process, the scraping plate 512 scrapes the residual activated carbon particles on the tank wall to prevent incomplete discharge of the activated carbon during discharge. Through the observation window 503, the staff can observe the regeneration situation of the activated carbon in the tank in real time; The flow meter 507 can accurately measure the hot air flow rate, so as to accurately control the hot air flow rate according to the actual treatment requirements. The cleaning liquid can be introduced into the hot air inlet pipe 505 through the anti-flushing branch 506 to perform backwashing on the hot air inlet pipe 505. The cleaning liquid will be ejected from the air jet openings 513, so that the inner wall of the desorption and regeneration device 5 can be washed, improving the cleaning efficiency and cleaning effect.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] In the present invention, unless otherwise clearly specified and defined, the terms "set", "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The control mode of the present invention is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art, and the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be explained in detail.

[0036] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An activated carbon waste gas treatment system for a cigarette packaging printing workshop, comprising a waste gas collection device (1), a pretreatment device (3), an activated carbon adsorption tank (2), a catalytic combustion device (4) and a desorption regeneration device (5), characterized in that: The bottom end of the activated carbon adsorption tank (2) is provided with an air inlet and outlet port (201), the top end of the activated carbon adsorption tank (2) is provided with an air outlet port (202), one side of the activated carbon adsorption tank (2) is provided with a manhole (203), an upper net partition (7) and a lower net partition (204) are respectively provided inside the activated carbon adsorption tank (2), activated carbon particles are provided between the upper net partition (7) and the lower net partition (204), a lifting drive mechanism is provided on the inner wall of the top end of the activated carbon adsorption tank (2), and the output end of the lifting drive mechanism is fixed to the upper net partition (7).

2. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 1 is characterized by: A distributor (206) is installed at a position inside the activated carbon adsorption tank (2) corresponding to the air inlet and outlet port (201), a plurality of distribution pipes (2061) are arranged in an array around the distributor (206), and a plurality of exhaust holes (2062) are evenly spaced at the top of the distribution pipes (2061).

3. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 1 is characterized by: The lifting drive mechanism comprises a hydraulic cylinder (702) fixed on the inner wall of the top end of the activated carbon adsorption tank (2); a transmission box (701) is fixed on the top end of the net-mounted partition (7); and an output shaft of the hydraulic cylinder (702) is fixed to the top end of the transmission box (701).

4. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 3 is characterized by: A rotating frame (703) is rotatably mounted inside one end of the upper screen partition (7) on which a receiving opening (705) is opened, and a stirrer (704) is rotatably mounted on the rotating frame (703).

5. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 4 is characterized by: An elastic telescopic rod (7011) is fixed in the transmission box (701), a connecting bracket (7013) is fixed at the top end of the elastic telescopic rod (7011), a vertical rack (7014) is fixed at the bottom end of the connecting bracket (7013), a horizontal transmission shaft (7015) is rotatably mounted at the top end of the online partition (7), first gears (7016) are fixed at both ends of the horizontal transmission shaft (7015), and a second gear (7031) is fixed on the connecting bracket (7013), one of the first gears (7016) is meshed with the vertical rack (7014), and the other first gear (7016) is meshed with the second gear (7031).

6. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 5 is characterized by: A lifting rod (7012) is fixed to the top of the connecting bracket (7013), and the top of the connecting bracket (7013) is movably extended to the outside of the transmission box (701). A baffle (7021) is installed on the fixed part of the hydraulic cylinder (702), and the position of the baffle (7021) corresponds to the lifting rod (7012).

7. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 6 is characterized by: A hexagon socket (7032) is rotatably mounted on the rotating frame (703), the hexagon socket (7032) is fixed to the agitator (704), a driving shaft (8) is rotatably mounted on the inner wall of the top end of the activated carbon adsorption tank (2), the driving shaft (8) is driven to rotate by a first rotating motor (801), and a prismatic pin (802) corresponding to the hexagon socket (7032) is fixed to the bottom end of the driving shaft (8).

8. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 1 is characterized by: The top of the desorption regeneration device (5) is provided with an activated carbon addition port (501) and a hot air inlet pipe (505), the bottom of the desorption regeneration device (5) is provided with an air outlet (502), and a stirring shaft (504) is rotatably installed in the desorption regeneration device (5), and a plurality of groups of stirring blades (511) are evenly distributed on the stirring shaft (504).

9. The activated carbon waste gas treatment system for cigarette packaging and printing workshop according to claim 8 is characterized by: The top end of the stirring shaft (504) extends to the outside of the desorption regeneration device (5) and is connected to the hot air inlet pipe (505) via a rotary joint. The interior of the stirring shaft (504) and the stirring blade (511) are hollow and connected. The stirring blade (511) is provided with a plurality of air jets (513).

10. The activated carbon waste gas treatment system for cigarette packaging printing workshop according to claim 8, characterized in that: The air jets (513) are equidistantly distributed on the stirring blade (511), and a scraper (512) is fixed on the stirring blade (511), the scraper (512) is in contact with the inner wall of the desorption regeneration device (5), a second rotating motor (508) is fixed on the top of the desorption regeneration device (5), a pulley (509) is fixed on the output shaft of the second rotating motor (508) and the outside of the stirring shaft (504), a belt (510) is sleeved between the outer sides of the two pulleys (509), an observation window (503) is opened on the outside of the desorption regeneration device (5), the observation window (503) is rectangular, and transparent glass is provided inside the observation window (503), a flow meter (507) is installed on the hot air inlet pipe (505), and a backwash branch (506) is connected to the hot air inlet pipe (505).

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