An exhaust gas treatment device for packaging box printing

Abstract

The present invention discloses an exhaust gas treatment device for packaging box printing, belonging to the field of exhaust gas treatment, including a treatment cylinder. The outer surface of the lower end of the treatment cylinder is fixedly connected with a motor, and the upper end of the output shaft of the motor is fixedly connected with a connecting shaft. The inner side of the treatment cylinder is fixedly connected with a mounting seat, and a material changing component is arranged inside the mounting seat. The material changing component includes a cavity embedded in the inner side of the mounting seat, a bracket is rotatably connected to the inner surface of the cavity, and a fixing block is fixedly connected to the outer surface of the connecting shaft. It can be realized that by setting the material changing component, the adsorption capacity of the activated carbon plate is monitored by using the gravity change of the activated carbon plate, so as to remove the saturated activated carbon plate, so that the activated carbon plate can maintain good adsorption performance, which helps to improve the treatment quality of printing exhaust gas. At the same time, by setting several groups of activated carbon plates and replacing the activated carbon plates separately, the adsorption performance of the activated carbon plates can be fully exerted.

Description

Technical Field

[0001] The present invention relates to the field of waste gas treatment, and more specifically, to a waste gas treatment device for packaging box printing. Background Art

[0002] The waste gas generated during packaging box printing refers to the gas containing volatile organic compounds produced during the printing process of packaging boxes. Its main sources include the volatilization of organic solvents such as ink, diluent, and cleaning agent. Printing waste gas is a toxic and harmful gas containing various harmful substances, and its emission will cause serious impacts on the environment and human health. Therefore, the printing industry needs to adopt waste gas treatment equipment to reduce the emission of printing waste gas;

[0003] In the prior art, the organic compounds in printing waste gas are usually adsorbed and cleaned by activated carbon adsorption. For example, a Chinese patent with the publication number CN219186381U discloses an activated carbon adsorption box for printing waste gas treatment. By quickly collecting activated carbon bricks into a collection bag, it is not necessary for workers to take out the activated carbon bricks from the drawer box one by one and then bag them, which can effectively improve the efficiency of activated carbon replacement and reduce the labor intensity;

[0004] Activated carbon has a developed pore structure and a large specific surface area, which enables it to effectively adsorb gas molecules. When the waste gas containing volatile organic compounds passes through the activated carbon layer, these organic substances are adsorbed in the micropores of the activated carbon, thereby achieving the purpose of purifying the waste gas. However, when the waste gas treatment is carried out by activated carbon in the prior art, when the pores on the surface of the activated carbon are blocked by foreign substances in the waste gas, the adsorption performance of the activated carbon will decrease significantly, which will affect the purification efficiency of the printing waste gas. And the adsorption performance of the activated carbon needs to be observed and judged by the operator. There will be a certain judgment error in the actual operation process, and there is a problem that the activated carbon that has not reached the saturated state is replaced, which will increase the loss of activated carbon during the waste gas treatment process, and at the same time will increase the workload of the operator to a certain extent. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a waste gas treatment device for packaging box printing, which can monitor the adsorption capacity of the activated carbon plate by setting a material replacement component and using the gravity change of the activated carbon plate, so as to remove the saturated activated carbon plate, so that the activated carbon plate can maintain good adsorption performance, which helps to improve the treatment quality of printing waste gas. At the same time, by setting several groups of activated carbon plates and replacing them separately, the adsorption performance of the activated carbon plates can be fully exerted.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A packaging box printing waste gas treatment device, including a treatment cylinder, the outer surface of the lower end of the treatment cylinder is fixedly connected with a motor, the upper end of the output shaft of the motor is fixedly connected with a connecting shaft, the inner side of the treatment cylinder is fixedly connected with a mounting seat, and a material changing component is arranged inside the mounting seat;

[0008] The material changing component includes a cavity embedded in the inner side of the mounting seat, the inner surface of the cavity is rotatably connected with a bracket, the outer surface of the connecting shaft is fixedly connected with a fixed block, the outer surface of the fixed block is fixedly connected with a sealing sleeve, the upper and lower ends of the sealing sleeve are rotatably connected with the inner surface of the cavity, and the sealing sleeve is fixedly connected with the bracket;

[0009] The upper outer surface of the bracket is provided with a mounting groove, the inner surface of the mounting groove is provided with a storage groove, the upper side of the inner surface of the storage groove is fixedly connected with an elastic plate, an activated carbon plate is placed inside the mounting groove, and the activated carbon plate is in fit contact with the outer surface of the elastic plate. The outer surface of the lower end of the mounting seat is provided with a discharge port.

[0010] Further, the activated carbon plate is in a fan-shaped structure, the number of the mounting grooves is several groups and is distributed in a circular array, the outer surface of the connecting shaft is rotatably connected with an isolation sleeve, the outer surface of the isolation sleeve is fixedly connected with the mounting seat, the number of the storage grooves and the elastic plates is several groups and is symmetrically distributed, and the elastic plate is in an arc shape.

[0011] Further, the outer surface of the lower end of the treatment cylinder is fixedly connected with an air inlet pipe, the upper end of the treatment cylinder is in a conical shape, the outer surface of the upper end of the treatment cylinder is fixedly connected with an exhaust pipe, the outer surface of the lower end of the treatment cylinder is fixedly connected with support legs, and the number of the support legs is three groups and is distributed in a circular array.

[0012] Further, a material discharging groove is opened on the outer surface of the treatment cylinder, a sealing groove is embedded and opened on the inner side of the treatment cylinder, the sealing groove is internally communicated with the material discharging groove, a sealing plate is slidably connected inside the sealing groove, the sealing plate is in an arc shape, a blocking block is fixedly connected to the outer surface of the sealing plate, a first air permeable groove is opened on the upper outer surface of the mounting seat, and the lower end of the first air permeable groove is internally communicated with the inside of the cavity.

[0013] Further, a discharging component is arranged below the mounting seat. The discharging component includes a partition plate fixedly connected to the inner surface of the lower end of the treatment cylinder, a second air permeable groove is opened on the outer surface of the lower end of the mounting seat, the first air permeable groove is directly above the second air permeable groove, the upper outer surface of the partition plate is fixedly connected with the outer surface of the lower end of the mounting seat, and a discharge port is opened on the outer surface of the lower end of the mounting seat between two partition plates.

[0014] Further, a first spring is fixedly connected to the lower end of the inner surface of the treatment cylinder. The upper end outer surface of the first spring is fixedly connected to a buffer plate. The lower end outer surface of the buffer plate is fixedly connected to a first contact plate. A second contact plate is fixedly connected to the lower end of the inner surface of the treatment cylinder. The first contact plate is directly above the second contact plate. A material taking groove is formed in the outer surface of the treatment cylinder.

[0015] Further, an adjusting assembly is arranged at the lower end of the inner surface of the treatment cylinder. The adjusting assembly includes a fixed cover fixedly connected to the lower end of the inner surface of the treatment cylinder. The fixed cover is directly above the air inlet pipe. A notch is formed in the outer surface of the fixed cover. The number of notches is several groups and is distributed in a circular array. A filter screen is fixedly connected to the inner surface of the fixed cover.

[0016] Further, a movable rod is fixedly connected to the upper end outer surface of the filter screen. A sliding sleeve is slidably connected to the outer surface of the movable rod. A top sleeve is fixedly connected to the lower end outer surface of the sliding sleeve. The top sleeve is annular. An extrusion plate is fixedly connected to the outer surface of the sliding sleeve. A second spring is fixedly connected to the upper end outer surface of the extrusion plate. The upper end of the second spring is fixedly connected to the upper end of the inner surface of the fixed cover.

[0017] Further, an adsorption assembly is arranged inside the treatment cylinder. The adsorption assembly includes a movable seat fixedly connected to the inner surface of the treatment cylinder. An activated carbon one is slidably connected to the inner surface of the movable seat. The lower end outer surface of the activated carbon one is fixedly connected to an activated carbon two. The connecting shaft penetrates through the upper sides of the activated carbon one and the activated carbon two.

[0018] Further, a movable groove is formed in the lower end outer surface of the activated carbon two. A guide plate is fixedly connected to the inner surface of the movable groove. The guide plate is spiral. A top rod is fixedly connected to the outer surface of the connecting shaft. The top rod is in an L-shaped structure. The upper end of the top rod is in movable contact with the lower end outer surface of the guide plate.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] (1) In this solution, by setting a material changing assembly, the adsorption capacity of the activated carbon plate is monitored by using the gravity change of the activated carbon plate, so as to remove the saturated activated carbon plate, so that the activated carbon plate can maintain good adsorption performance, which helps to improve the treatment quality of printing waste gas. At the same time, by setting several groups of activated carbon plates and replacing them separately, the adsorption performance of the activated carbon plates can be fully exerted;

[0021] (2) In this solution, by setting an adjusting assembly, the air volume at the notch can be buffered and adjusted by the movement of the extrusion plate, so as to reduce the air volume fluctuation inside the treatment cylinder and maintain the intake air volume of the printing waste gas within an appropriate range, and further improve the treatment quality of the printing waste gas;

[0022] (3) By setting up the adsorption component, the gas is secondarily adsorbed and filtered by activated carbon 1 and activated carbon 2, so that the treatment effect of the printing waste gas can be further improved. By reciprocating up and down of activated carbon 1 and activated carbon 2, the foreign particles attached to their surfaces can be shaken off, so that the probability of blockage of activated carbon 1 and activated carbon 2 can be reduced, which helps to ensure the permeability of activated carbon 1 and activated carbon 2 and can effectively extend the working time of activated carbon 1 and activated carbon 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention Figure 1 ;

[0024] Figure 2 is a schematic diagram of the overall structure of the present invention Figure 2 ;

[0025] Figure 3 is a top view of the overall structure of the present invention;

[0026] Figure 4 is of the present invention Figure 3 is a sectional view taken along the line A-A in the present invention;

[0027] Figure 5 is of the present invention Figure 1 is a sectional view taken along the line B-B in the present invention;

[0028] Figure 6 is of the present invention Figure 3 is a sectional view taken along the line C-C in the present invention;

[0029] Figure 7 is of the present invention Figure 1 is a sectional view taken along the line D-D in the present invention;

[0030] Figure 8 is of the present invention Figure 4 is an enlarged schematic view of part E in the present invention;

[0031] Figure 9 is of the present invention Figure 6 is an enlarged schematic view of part F in the present invention;

[0032] Figure 10 is of the present invention Figure 4 is an enlarged schematic view of part G in the present invention.

[0033] Description of the reference numerals in the drawings:

[0034] 11. Processing cylinder; 12. Leg; 13. Material taking groove; 14. Exhaust pipe; 15. Discharging groove; 16. Sealing plate; 17. Stopper; 18. Motor; 19. Intake pipe; 20. Movable seat; 21. Coupling shaft; 22. Activated carbon one; 23. Activated carbon two; 24. Thrust rod; 25. Guide plate; 26. Mounting seat; 27. Venting groove one; 28. Venting groove two; 29. Bracket; 30. Isolation sleeve; 31. Sealing sleeve; 32. Fixed block; 33. Storage groove; 34. Elastic plate; 35. Activated carbon plate; 36. Fixed cover; 37. Notch; 38. Movable rod; 39. Sliding sleeve; 40. Thrust sleeve; 41. Extrusion plate; 42. Spring one; 43. Filter screen; 44. Buffer plate; 45. Spring two; 46. Contact plate one; 47. Contact plate two; 48. Partition board; 49. Discharge port; 50. Movable groove; 51. Sealing groove; 52. Mounting groove; 53. Cavity. Detailed implementation manner

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1 to 10 , a waste gas treatment device for packaging box printing, including a processing cylinder 11, the outer surface of the lower end of the processing cylinder 11 is fixedly connected with a motor 18, the upper end of the output shaft of the motor 18 is fixedly connected with a coupling shaft 21, the inner side of the processing cylinder 11 is fixedly connected with a mounting seat 26, and a material changing component is arranged inside the mounting seat 26;

[0037] The material changing component includes a cavity 53 embedded and opened inside the mounting seat 26, the inner surface of the cavity 53 is rotatably connected with a bracket 29, the outer surface of the coupling shaft 21 is fixedly connected with a fixed block 32, the outer surface of the fixed block 32 is fixedly connected with a sealing sleeve 31, the upper and lower ends of the sealing sleeve 31 are rotatably connected with the inner surface of the cavity 53, and the sealing sleeve 31 is fixedly connected with the bracket 29;

[0038] The upper outer surface of the bracket 29 is provided with a mounting groove 52, the inner surface of the mounting groove 52 is provided with a storage groove 33, the upper side of the inner surface of the storage groove 33 is fixedly connected with an elastic plate 34, an activated carbon plate 35 is placed inside the mounting groove 52, the activated carbon plate 35 is in fitting contact with the outer surface of the elastic plate 34, and the outer surface of the lower end of the mounting seat 26 is provided with a discharge port 49.

[0039] The activated carbon plate 35 has a fan-shaped structure. The number of the mounting grooves 52 is several groups and they are distributed in an annular array. A spacer sleeve 30 is rotatably connected to the outer surface of the coupling shaft 21. The outer surface of the spacer sleeve 30 is fixedly connected to the mounting base 26. The number of the storage grooves 33 and the elastic plates 34 is several groups and they are symmetrically distributed. The elastic plate 34 is arc-shaped.

[0040] An air inlet pipe 19 is fixedly connected to the outer surface of the lower end of the treatment cylinder 11. The upper end of the treatment cylinder 11 is conical. An exhaust pipe 14 is fixedly connected to the outer surface of the upper end of the treatment cylinder 11. Legs 12 are fixedly connected to the outer surface of the lower end of the treatment cylinder 11. The number of the legs 12 is three groups and they are distributed in an annular array.

[0041] By adopting the above technical solution, when the printing waste gas of the packaging box is treated by the treatment cylinder 11, first, the waste gas to be treated is pressurized and injected into the interior of the treatment cylinder 11 through the air inlet pipe 19. The treatment cylinder 11 fixedly supports the mounting seat 26. The printing waste gas flows upward inside the treatment cylinder 11 under the action of pressure. At the same time, the motor 18 is started and operated. The output shaft of the motor 18 drives the coupling shaft 21 to rotate synchronously. The isolation sleeve 30 separates the mounting seat 26 and the coupling shaft 21. The coupling shaft 21 drives the sealing sleeve 31 to rotate synchronously through the fixing block 32. The sealing sleeve 31 rotates inside the cavity 53 of the mounting seat 26 through the bracket 29. The mounting groove 52 opened on the surface of the bracket 29 is used to place the activated carbon plate 35. The storage groove 33 opened inside the mounting groove 52 is used to fixedly support the elastic plate 34. The activated carbon plate 35 stays inside the mounting groove 52 under the elastic force of the elastic plate 34. The elastic plate 34 lifts and supports the activated carbon one 22, so that the bracket 29 can drive the activated carbon plate 35 to rotate synchronously. The sealing sleeve 31 can rotate and seal inside the cavity 53. After the printing waste gas enters the cavity 53, the printing waste gas passes through the activated carbon plate 35, and the volatile organic compounds in the printing waste gas are adsorbed and removed by the activated carbon plate 35. During the waste gas treatment process, the bracket 29 drives several groups of activated carbon plates 35 distributed in a circular array to continuously rotate inside the cavity 53 through the elastic plate 34. As the volatile organic compounds adsorbed on the surface of the activated carbon plate 35 gradually increase, while the adsorption capacity of the activated carbon plate 35 gradually decreases, its weight will continuously increase. When the gravity of the activated carbon plate 35 is greater than the friction force between the elastic plate 34 and the activated carbon plate 35, the activated carbon plate 35 will slide downward inside the mounting groove 52. At this time, the lower end of the activated carbon plate 35 will be in rotational contact with the lower end surface of the inner surface of the cavity 53. When the activated carbon plate 35 moves to the discharge port 49, the activated carbon plate 35 will fall from the discharge port 49 under the action of gravity, so as to realize the timely disassembly of this group of activated carbon plates 35. By setting the material replacement component, the adsorption capacity of the activated carbon plate 35 is monitored by using the gravity change of the activated carbon plate 35, so as to remove the saturated activated carbon plate 35, so that the activated carbon plate 35 can maintain good adsorption performance, which helps to improve the treatment quality of the printing waste gas. At the same time, by setting several groups of activated carbon plates 35 and replacing the activated carbon plates 35 separately, the adsorption performance of the activated carbon plates 35 can be fully exerted.

[0042] As Figure 4 And Figure 5As shown in the figure, a feeding groove 15 is formed on the outer surface of the processing cylinder 11, a sealing groove 51 is embedded on the inner side of the processing cylinder 11, the sealing groove 51 is communicated with the inside of the feeding groove 15, a sealing plate 16 is slidably connected inside the sealing groove 51, the sealing plate 16 is arc-shaped, a blocking block 17 is fixedly connected to the outer surface of the sealing plate 16, and a first air permeable groove 27 is formed on the upper outer surface of the mounting seat 26, and the lower end of the first air permeable groove 27 is communicated with the inside of the cavity 53.

[0043] By adopting the above technical solution, after the activated carbon plate 35 reaches the saturation state and is discharged from the inside of the mounting seat 26, it is necessary to supplement and replace the group of activated carbon plates 35. At this time, the operator slides the sealing plate 16 upward from the inside of the sealing groove 51 through the blocking block 17, opens the feeding groove 15 through the sealing plate 16, and then extends the activated carbon plate 35 into the processing cylinder 11 through the feeding groove 15, and then places the activated carbon plate 35 in the mounting groove 52 on the surface of the bracket 29 through the first air permeable groove 27, so as to complete the rapid disassembly and replacement of the activated carbon plate 35. Then, the sealing plate 16 slides downward along the sealing groove 51 under the action of the blocking block 17 and its own gravity, and blocks and seals the feeding groove 15 through the sealing plate 16, so as to reduce the probability of gas leakage from the inside of the processing cylinder 11 at the feeding groove 15. After the printed waste gas is filtered and processed by the activated carbon plate 35 inside the cavity 53, it continues to flow upward and diffuse through the first air permeable groove 27 on the upper surface of the mounting seat 26.

[0044] As Figure 4 shown in Figure 6 the figure, a discharging assembly is arranged below the mounting seat 26. The discharging assembly includes a partition plate 48 fixedly connected to the lower end inner surface of the processing cylinder 11, a second air permeable groove 28 is formed on the lower outer surface of the mounting seat 26, the first air permeable groove 27 is located directly above the second air permeable groove 28, the upper outer surface of the partition plate 48 is fixedly connected to the lower end of the mounting seat 26, and a discharging port 49 is formed on the lower outer surface of the mounting seat 26 between the two partition plates 48.

[0045] A first spring 42 is fixedly connected to the lower end inner surface of the processing cylinder 11, a buffer plate 44 is fixedly connected to the upper outer surface of the first spring 42, a first contact plate 46 is fixedly connected to the lower outer surface of the buffer plate 44, a second contact plate 47 is fixedly connected to the lower end inner surface of the processing cylinder 11, the first contact plate 46 is located directly above the second contact plate 47, and a material taking groove 13 is formed on the outer surface of the processing cylinder 11.

[0046] By adopting the above technical solution, the partition plate 48 is located between the mounting seat 26 and the lower end of the inner surface of the treatment cylinder 11. Two groups of partition plates 48 and the mounting seat 26 cooperate to form a sealed space inside the treatment cylinder 11. The upper end of the partition plate 48 is in rotational contact with the outer surface of the lower end of the bracket 29, so as to enable sealing between the partition plate 48 and the bracket 29. The printed waste gas enters the interior of the cavity 53 through the second air permeable groove 28. When the saturated activated carbon plate 35 falls from the discharge port 49, the activated carbon plate 35 will land on the outer surface of the buffer plate 44. The treatment cylinder 11 supports the buffer plate 44 through the first spring 42. The buffer plate 44 will compress the first spring 42 under the gravity of the activated carbon plate 35. During the downward movement of the buffer plate 44, the first contact plate 46 will be driven to move downward synchronously, so that the first contact plate 46 contacts the second contact plate 47. When the first contact plate 46 and the second contact plate 47 come into contact, an electrical signal is sent to the waste gas treatment equipment control system. Through the control system, a warning is sent to remind the operator to timely take out the saturated activated carbon plate 35 through the material taking groove 13 and timely replace the activated carbon plate 35 to ensure the operation stability of the printed waste gas treatment equipment. By setting the material taking component to remind the user to timely replace the saturated activated carbon plate 35, the operation convenience and flexibility of the printed waste gas treatment equipment can be improved to a certain extent, and at the same time, the treatment effect of the printed waste gas can be ensured.

[0047] As Figure 4 、 Figure 6 shown in Figure 8 As shown in, an adjusting component is arranged at the lower end of the inner surface of the treatment cylinder 11. The adjusting component includes a fixed cover 36 fixedly connected to the lower end of the inner surface of the treatment cylinder 11. The fixed cover 36 is located directly above the air inlet pipe 19. A notch 37 is formed on the outer surface of the fixed cover 36. The number of notches 37 is several groups and is distributed in a circular array. A filter screen 43 is fixedly connected to the inner surface of the fixed cover 36.

[0048] The upper end outer surface of the filter screen 43 is fixedly connected with a movable rod 38. A sliding sleeve 39 is slidably connected to the outer surface of the movable rod 38. The lower end outer surface of the sliding sleeve 39 is fixedly connected with a top sleeve 40. The top sleeve 40 is annular. The outer surface of the sliding sleeve 39 is fixedly connected with an extrusion plate 41. The upper end outer surface of the extrusion plate 41 is fixedly connected with a second spring 45. The upper end of the second spring 45 is fixedly connected to the upper end inner surface of the fixed cover 36.

[0049] By adopting the above technical solution, there will be certain fluctuations in the amount of waste gas generated during the packaging box printing process. In order to improve the quality of waste gas treatment, it is necessary to maintain the treatment flow rate of the waste gas within an appropriate range. For this purpose, an adjustment component is provided. When the printing waste gas is injected into the interior of the treatment cylinder 11 through the intake pipe 19, the printing waste gas will pass through the filter screen 43 and enter the fixed cover 36. The large-particle impurities in the printing waste gas are preliminarily filtered through the filter screen 43, so as to reduce the probability of blockage of the activated carbon plate 35 by the large-particle impurities in the waste gas. After the printing waste gas enters the upper side of the filter screen 43, it will diffuse from the notch 37 on the surface of the fixed cover 36 into the interior of the treatment cylinder 11. The second spring 45 tractionally supports the pressing plate 41, and at the same time, the pressing plate 41 can separate and seal the notch 37 on the surface of the fixed cover 36. The printing waste gas will blow the pressing plate 41, causing the pressing plate 41 to drive the sliding sleeve 39 to slide along the surface of the movable rod 38. The movable rod 38 guides and supports the pressing plate 41 through the sliding sleeve 39, so that the pressing plate 41 can slide smoothly up and down. When the generation amount of the printing waste gas increases, the pressing plate 41 will slide upward under the blowing of the gas, and the second spring 45 will apply a certain buffering force to the pressing plate 41. Under the blocking action of the second spring 45, the upward sliding distance of the pressing plate 41 can be reduced. By the movement of the pressing plate 41, the air output at the notch 37 can be buffered and adjusted, so as to reduce the air volume fluctuation inside the treatment cylinder 11 and maintain the intake volume of the printing waste gas within an appropriate range, thereby further improving the treatment quality of the printing waste gas. When the intake volume of the waste gas is too small, the pressing plate 41 and the sliding sleeve 39 will slide downward under the action of gravity, and the sliding sleeve 39 will drive the top sleeve 40 to move downward synchronously. During the falling process of the top sleeve 40, it will collide with the upper surface of the filter screen 43. By knocking the filter screen 43 with the top sleeve 40, the large-particle impurities attached to the surface of the filter screen 43 can be cleaned, so as to ensure the filtering effect of the filter screen 43.

[0050] As Figure 4 shown in Figure 7 Figure, an adsorption component is arranged inside the treatment cylinder 11. The adsorption component includes a movable seat 20 fixedly connected to the inner surface of the treatment cylinder 11. The inner surface of the movable seat 20 is slidably connected with a first activated carbon 22. The lower outer surface of the first activated carbon 22 is fixedly connected with a second activated carbon 23. The connecting shaft 21 penetrates to the upper sides of the first activated carbon 22 and the second activated carbon 23.

[0051] An activity groove 50 is formed in the lower outer surface of the second activated carbon 23. A guide plate 25 is fixedly connected to the inner surface of the activity groove 50. The guide plate 25 is spiral. A top rod 24 is fixedly connected to the outer surface of the connecting shaft 21. The top rod 24 has an L-shaped structure. The upper end of the top rod 24 is in movable contact with the lower outer surface of the guide plate 25.

[0052] By adopting the above technical solution, the gas filtered by the activated carbon plate 35 will continue to flow upward, and the gas will be secondary adsorbed and filtered by the activated carbon 1 22 and the activated carbon 2 23, so that the treatment effect of the printing waste gas can be further improved. The treatment cylinder 11 will slide and support the activated carbon 1 22 through the movable seat 20. The activated carbon 23 on the lower side of the activated carbon 1 22 can effectively increase the contact area between the activated carbon and the gas, so as to improve the waste gas treatment efficiency to a certain extent. The activated carbon 23 fixes and supports the guide plate 25 through the movable groove 50. The connecting shaft 21 will drive the push rod 24 to rotate synchronously during the rotation process. The push rod 24 will slide and contact the lower surface of the guide plate 25 during the rotation process. The guide plate 25 is spiral. The activated carbon 23 and the activated carbon 1 22 are lifted upward by the guide plate 25, so that the activated carbon 1 22 can slide upward inside the movable seat 20. When the push rod 24 is out of contact with the guide plate 25, the activated carbon 1 22 and the activated carbon 2 23 slide downward under the action of gravity. The activated carbon 1 22 and the activated carbon 2 23 can be reciprocated up and down to shake off the foreign particles attached to their surfaces, thereby reducing the probability of activated carbon 1 22 and activated carbon 2 23 being blocked, helping to ensure the permeability of activated carbon 1 22 and activated carbon 2 23 and effectively prolonging the working time of activated carbon 1 22 and activated carbon 2 23. The gas that has been filtered again is discharged to the outside of the treatment tube 11 through the exhaust pipe 14 on the upper side of the treatment tube 11.

[0053] Instructions for use: When filtering the printing waste gas, the waste gas is injected into the fixed cover 36 through the air inlet pipe 19, and the large particles of impurities in the printing waste gas are initially filtered through the filter screen 43. The printing waste gas blows the extrusion plate 41 so that the extrusion plate 41 drives the sliding sleeve 39 to slide along the surface of the movable rod 38. The movement of the extrusion plate 41 can buffer and adjust the air volume at the notch 37, thereby reducing the fluctuation of the air volume inside the treatment cylinder 11. The printing waste gas enters the cavity 53 through the air permeable groove 28, and the volatile organic compounds in the printing waste gas are removed by the activated carbon plate 35. The activated carbon plates 35 in a saturated state will fall from the discharge port 49 under the action of gravity so that the saturated activated carbon plates 35 can be removed. The gas can be secondary adsorbed and filtered by the activated carbon 1 22 and the activated carbon 2 23. The foreign particles attached to the surface of the activated carbon 1 22 and the activated carbon 2 23 can be shaken off by the up and down reciprocating movement of the activated carbon 1 22 and the activated carbon 2 23, thereby effectively extending the working time of the activated carbon 1 22 and the activated carbon 2 23.

[0054] The above are only the preferred specific embodiments of the present invention; however, 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 its improved concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for packaging box printing, comprising a treatment cylinder (11), characterized in that: A motor (18) is fixedly connected to the outer surface of the lower end of the processing cylinder (11). The upper end of the output shaft of the motor (18) is fixedly connected to a coupling shaft (21). An installation seat (26) is fixedly connected to the inner side of the processing cylinder (11). A material changing assembly is arranged inside the installation seat (26). The material changing assembly includes a cavity (53) embedded in the inner side of the installation seat (26). A bracket (29) is rotatably connected to the inner surface of the cavity (53). A fixing block (32) is fixedly connected to the outer surface of the coupling shaft (21). A sealing sleeve (31) is fixedly connected to the outer surface of the fixing block (32). The upper and lower ends of the sealing sleeve (31) are rotatably connected to the inner surface of the cavity (53). The sealing sleeve (31) is fixedly connected to the bracket (29). An installation groove (52) is formed in the outer surface of the upper end of the bracket (29). A storage groove (33) is formed in the inner surface of the installation groove (52). An elastic plate (34) is fixedly connected to the upper side of the inner surface of the storage groove (33). An activated carbon plate (35) is placed inside the installation groove (52). The activated carbon plate (35) is in fitting contact with the outer surface of the elastic plate (34). A discharge port (49) is formed in the outer surface of the lower end of the installation seat (26).

2. The waste gas treatment equipment for packaging box printing according to claim 1, characterized in that: The activated carbon plate (35) is in a fan-shaped structure. The number of the installation grooves (52) is several groups and they are distributed in a circular array. An isolation sleeve (30) is rotatably connected to the outer surface of the coupling shaft (21). The outer surface of the isolation sleeve (30) is fixedly connected to the installation seat (26). The number of the storage grooves (33) and the elastic plates (34) is several groups and they are symmetrically distributed. The elastic plate (34) is in an arc shape.

3. An exhaust gas treatment device for packaging box printing according to claim 2, characterized in that: An air inlet pipe (19) is fixedly connected to the outer surface of the lower end of the processing cylinder (11). The upper end of the processing cylinder (11) is in a conical shape. An exhaust pipe (14) is fixedly connected to the outer surface of the upper end of the processing cylinder (11). Legs (12) are fixedly connected to the outer surface of the lower end of the processing cylinder (11). The number of the legs (12) is three groups and they are distributed in a circular array.

4. The waste gas treatment equipment for packaging box printing according to claim 3, characterized in that: A material discharging groove (15) is formed in the outer surface of the processing cylinder (11). A sealing groove (51) is embedded in the inner side of the processing cylinder (11). The sealing groove (51) is internally connected to the material discharging groove (15). A sealing plate (16) is slidably connected to the inner side of the sealing groove (51). The sealing plate (16) is in an arc shape. A blocking block (17) is fixedly connected to the outer surface of the sealing plate (16). A first air permeable groove (27) is formed in the outer surface of the upper end of the installation seat (26). The lower end of the first air permeable groove (27) is internally connected to the cavity (53).

5. The waste gas treatment equipment for packaging box printing according to claim 4, wherein: A discharge assembly is provided on the lower side of the mounting base (26). The discharge assembly includes a partition plate (48) fixedly connected to the lower end of the inner surface of the processing cylinder (11). An air permeation groove II (28) is formed on the outer surface of the lower end of the mounting base (26). The air permeation groove I (27) is located directly above the air permeation groove II (28). The upper end outer surface of the partition plate (48) is fixedly connected to the lower end outer surface of the mounting base (26). A discharge port (49) is formed on the outer surface of the lower end of the mounting base (26) between two groups of partition plates (48).

6. The waste gas treatment equipment for packaging box printing according to claim 5, wherein: A first spring (42) is fixedly connected to the lower end of the inner surface of the processing cylinder (11). A buffer plate (44) is fixedly connected to the upper end outer surface of the first spring (42). A first contact plate (46) is fixedly connected to the lower end outer surface of the buffer plate (44). A second contact plate (47) is fixedly connected to the lower end of the inner surface of the processing cylinder (11). The first contact plate (46) is located directly above the second contact plate (47). A material taking groove (13) is formed on the outer surface of the processing cylinder (11).

7. An exhaust gas treatment device for packaging box printing according to claim 6, characterized in that: An adjusting assembly is provided on the lower end of the inner surface of the processing cylinder (11). The adjusting assembly includes a fixed cover (36) fixedly connected to the lower end of the inner surface of the processing cylinder (11). The fixed cover (36) is located directly above the air inlet pipe (19). A notch (37) is formed on the outer surface of the fixed cover (36). The number of notches (37) is several groups and is distributed in a circular array. A filter screen (43) is fixedly connected to the inner surface of the fixed cover (36).

8. An exhaust gas treatment device for packaging box printing according to claim 7, characterized in that: A movable rod (38) is fixedly connected to the upper end outer surface of the filter screen (43). A sliding sleeve (39) is slidably connected to the outer surface of the movable rod (38). A top sleeve (40) is fixedly connected to the lower end outer surface of the sliding sleeve (39). The top sleeve (40) is in a circular ring shape. An extrusion plate (41) is fixedly connected to the outer surface of the sliding sleeve (39). A second spring (45) is fixedly connected to the upper end outer surface of the extrusion plate (41). The upper end of the second spring (45) is fixedly connected to the upper end inner surface of the fixed cover (36).

9. The waste gas treatment equipment for packaging box printing according to claim 8, wherein: An adsorption assembly is provided inside the processing cylinder (11). The adsorption assembly includes a movable seat (20) fixedly connected to the inner surface of the processing cylinder (11). An activated carbon I (22) is slidably connected to the inner surface of the movable seat (20). An activated carbon II (23) is fixedly connected to the lower end outer surface of the activated carbon I (22). The connecting shaft (21) penetrates to the upper side of the activated carbon I (22) and the activated carbon II (23).

10. The waste gas treatment equipment for packaging box printing according to claim 9, wherein: A movable groove (50) is formed on the lower end outer surface of the activated carbon II (23). A guide plate (25) is fixedly connected to the inner surface of the movable groove (50). The guide plate (25) is in a spiral shape. A top rod (24) is fixedly connected to the outer surface of the connecting shaft (21). The top rod (24) is in an L-shaped structure. The upper end of the top rod (24) is in movable contact with the lower end outer surface of the guide plate (25).

Images