VOCs waste gas treatment device

Abstract

The present invention provides a VOCs waste gas treatment apparatus, and belongs to the technical field of environmental protection engineering construction, the VOCs waste gas treatment apparatus comprises: a treatment cylinder body as a waste gas treatment container, the side wall of the treatment cylinder body is provided with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe and the gas outlet pipe are located on the same vertical plane, and the side wall of the treatment cylinder body is provided with a material changing port; a filtering rotating drive is arranged in the center of the treatment barrel in the vertical direction and comprises a rotating sleeve shaft rotationally mounted in the center of the treatment barrel, a plurality of adsorption mounting frames distributed in an annular array are arranged on the periphery of the rotating sleeve shaft, and adsorption parts used for adsorbing and purifying waste gas are detachably arranged on the adsorption mounting frames; the upper end and the lower end of the adsorption mounting frame are each provided with a partition plate, and the partition plate located on the upper portion is provided with a limiting component used for clamping the adsorption part. According to the automatic material changing device, through the integrated material changing cover body, the automatic opening and closing component, the feeding component, the feeding component and internal material changing pushing, automatic, rapid and closed replacement of the adsorption part is achieved.

Description

Technical Field

[0001] This invention belongs to the field of environmental engineering construction technology, specifically a VOCs waste gas treatment device. Background Technology

[0002] VOCs, or volatile organic compounds, refer to organic compounds that have high vapor pressure, low boiling point, and low molecular weight under standard conditions, and are easily volatilized at room temperature. They are widely present in industrial production processes and pose a significant threat to the atmospheric environment and human health. Current technologies for treating these waste gases mainly employ adsorption, combustion, or biodegradation methods. Among these, adsorption is widely used due to its simplicity and moderate cost. Its core principle is to capture organic pollutants in waste gases using highly efficient activated carbon and other adsorption materials. The treatment process includes pretreatment, adsorption purification, and desorption regeneration.

[0003] In actual operation, the adsorbent gradually becomes saturated over time, resulting in a decrease in adsorption efficiency. Timely replacement is necessary to maintain the treatment effect. However, current VOCs waste gas treatment devices generally suffer from the problem of difficult adsorbent replacement: the adsorbent is usually installed in a fixed structure inside the treatment container, requiring a complete shutdown and disassembly of the equipment casing for replacement, a cumbersome and time-consuming process. Summary of the Invention

[0004] The purpose of this application is to provide a VOCs waste gas treatment device that solves the problem that existing devices often involve complex, time-consuming, and labor-intensive operations and difficulties in replacing the adsorbent.

[0005] The technical solution adopted by this invention to solve its technical problem is: a VOCs waste gas treatment device, comprising: The treatment cylinder serves as a container for treating waste gas. The side wall of the treatment cylinder is provided with an air inlet pipe and an exhaust pipe, which are located in the same vertical plane. The side wall of the treatment cylinder is also provided with a material exchange port. The processing cylinder is provided with a filter rotation drive along the center of the vertical direction. The filter rotation drive includes a rotating sleeve shaft rotatably installed at the center of the processing cylinder. A plurality of adsorption mounting frames are arranged in a ring array on the outer periphery of the rotating sleeve shaft. Adsorption mounting frames are detachably provided with adsorption components for adsorbing and purifying waste gas. Baffles are provided at the upper and lower ends of the adsorption mounting frames. Limiting components for clamping the adsorption components are provided on the upper baffles. The adsorption element includes an adsorption frame with a rectangular frame structure, an activated carbon adsorption block is provided on the inner periphery of the adsorption frame, and a frame slot is provided at the upper end of the adsorption frame. The outer wall of the processing cylinder is provided with a material changing hood, which covers the outside of the material changing port. The outer wall of the processing cylinder is provided with an opening and closing component for controlling the opening and closing of the material changing port at the material changing port. The material changing hood stores adsorbents, and the material changing hood is provided with a feeding component for pushing the adsorbents into the adsorption mounting frame. The material changing hood is also provided with a feeding component for conveying the adsorbents to the feeding component and conveying the adsorbents on the feeding component out of the material changing hood.

[0006] Preferably, the air inlet pipe is located at the upper part of the processing cylinder, the exhaust pipe is located at the lower part of the processing cylinder, and the air inlet pipe and the exhaust pipe are in the same vertical plane. The vertical plane where the material exchange port is located is perpendicular to the vertical plane where the air inlet pipe and the exhaust pipe are located.

[0007] Preferably, the filter rotation drive further includes a rotary motor fixedly installed on the top of the processing cylinder, a drive gear fixedly installed on the output shaft of the rotary motor, and an external gear disk meshing with the drive gear fixedly installed on the upper part of the rotating sleeve shaft.

[0008] Preferably, the material changing hood includes two sets of guide covers fixedly installed on the outer wall of the processing cylinder. The two sets of guide covers are used to guide the opening and closing of the opening and closing components. A storage hood for changing the adsorption component is provided between the two sets of guide covers. Two sets of frame hanging plates that slide with the frame slots are fixedly installed on the top inner side of the storage hood. The two sets of frame hanging plates are symmetrically distributed on both sides of the feeding component for hanging the adsorption component. Covers are provided on both sides of the storage hood for placing the adsorption component into the storage hood or removing the adsorption component from the storage hood.

[0009] Preferably, the feeding component includes a feeding support fixedly installed at the bottom of the storage hood, a plurality of feeding shafts are rotatably mounted on the feeding support, a feeding roller is fixedly installed in the middle of the feeding shaft, and the plurality of feeding shafts are connected by a belt drive; a feeding motor for driving one of the feeding shafts to rotate is fixedly installed on the side wall of the feeding support.

[0010] Preferably, the feeding component includes a feeding seat plate fixedly disposed in the middle of the inner side of the storage hood. Two sets of feeding shafts are rotatably mounted on the feeding seat plate. Transmission wheels are fixedly mounted on the feeding shafts. The two sets of transmission wheels are connected by a feeding transmission belt. Several feeding push blocks for pushing the adsorption components to move along the frame hanging plate are fixedly disposed on the outer side of the feeding transmission belt. A feeding motor for driving the feeding shafts to rotate is fixedly mounted at the lower end of the feeding seat plate.

[0011] Preferably, the opening and closing component includes two sets of opening and closing slides slidably disposed on the outer side wall of the processing cylinder and an opening and closing motor fixedly mounted on the material changing hood. The two sets of opening and closing slides are symmetrically distributed around the center of the material changing port in the vertical direction. An opening and closing rack is fixedly disposed at the upper end of each set of opening and closing slides. An opening and closing gear is fixedly mounted on the output shaft of the opening and closing motor. The opening and closing gear is meshed with the two sets of opening and closing racks respectively. The two sets of opening and closing racks are distributed in a circular array on both sides of the opening and closing gear. The opening and closing motor drives the opening and closing gear to rotate, realizing the synchronous movement of the two sets of opening and closing racks towards or away from each other, thereby driving the two sets of opening and closing slides to realize the on / off control of the material changing port.

[0012] Preferably, the opening and closing slide has a slide groove on the side near the processing cylinder, a blocking slider is slidably disposed in the slide groove, the inner side of the blocking slider has an arc surface equal to the inner wall of the processing cylinder, the outer side of the blocking slider has a slider guide groove, the opening and closing slide has a slide guide plate that slides in cooperation with the slider guide groove, and the blocking slider is connected to the bottom of the slide groove by multiple sets of return springs.

[0013] Preferably, the limiting component includes a U-shaped frame inverted on the upper baffle plate, a limiting slider is vertically slidably arranged on the inner side of the U-shaped frame, a V-shaped locking block is fixedly arranged at the lower end of the limiting slider to engage with the frame slot for limiting, and a through hole is provided on the baffle plate for the V-shaped locking block to pass through. A slider guide rod is slidably connected to the upper part of the U-shaped frame, the lower end of the slider guide rod is fixedly connected to the limiting slider, and a limiting spring is connected between the upper end of the limiting slider and the top of the U-shaped frame.

[0014] Preferably, the inner side of the rotating sleeve shaft is provided with a material changing pusher for pushing the adsorption component on the adsorption mounting frame into the feeding component; The material changing push includes a motor bracket fixedly installed on the top of the processing cylinder. A bidirectional lead screw is rotatably connected between the motor bracket and the bottom of the processing cylinder. A limit guide rod is fixedly installed at the lower end of the motor bracket, and a material changing motor for driving the bidirectional lead screw is fixedly installed at the upper end of the motor bracket. Two sets of lead screw slides are threadedly connected to the bidirectional lead screw, and the lead screw slides are slidably connected to the limit guide rod. Pushing connecting rods are rotatably connected to the side of the two sets of lead screw slides facing the material changing hood. Pushing sliders are rotatably connected to the two sets of pushing connecting rods. Limiting connecting rods are slidably connected to the pushing sliders, and the limiting connecting rods are fixedly connected to the limit guide rod. The side wall of the rotating sleeve is provided with multiple sleeve holes for the push slider to pass through, and the number and position of the sleeve holes correspond to the adsorption mounting frame.

[0015] The beneficial effects of this invention are as follows: Through an integrated material replacement hood, automated opening and closing components, feeding components, conveying components, and internal material replacement pusher, automatic, rapid, and sealed replacement of the adsorption element is achieved. Users do not need to stop the machine for tedious manual operations, greatly improving replacement efficiency and reducing labor costs and potential risks of exhaust gas leakage. In particular, the sealing slider design in the opening and closing components ensures the sealing of the internal processing cylinder during replacement, preventing exhaust gas leakage. The automatic locking and releasing mechanism of the limiting components also simplifies the installation and disassembly process of the adsorption element. The entire system significantly improves the ease of operation and maintenance of the device while ensuring the exhaust gas treatment effect. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a top view of the overall structure of the invention; Figure 3 This is the present invention. Figure 2 Schematic diagram of the cross-sectional structure along the AA direction; Figure 4 This is the present invention. Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the internal structure of the processing cylinder of the present invention; Figure 6 This is a schematic diagram of the feeding component of the present invention; Figure 7 This is a schematic diagram of the feeding component of the present invention; Figure 8 This is a schematic diagram of the structure of the adsorption element of the present invention; Figure 9 This is a three-dimensional structural schematic diagram of the opening and closing component of the present invention; Figure 10 This is the present invention. Figure 9 Schematic diagram of the cross-sectional structure in the CC direction; Figure 11 This is the present invention. Figure 9 Enlarged structural diagram at point D; Figure 12 This is a schematic diagram of the structure of the limiting component of the present invention.

[0018] In the diagram: 1. Processing cylinder; 101. Inlet pipe; 102. Exhaust pipe; 2. Filter rotation drive; 21. Rotary motor; 22. Drive gear; 23. Rotary sleeve shaft; 231. Sleeve shaft hole; 24. External gear disk; 25. Adsorption mounting frame; 26. Baffle plate; 3. Material changing pusher; 31. Motor bracket; 32. Material changing motor; 33. Bidirectional lead screw; 34. Limiting guide rod; 35. Lead screw slide; 36. Pushing connecting rod; 37. Pushing slider; 4. Adsorption component; 41. Adsorption frame; 42. Activated carbon adsorption block; 43. Frame slot; 5. Material changing hood; 51. Storage hood; 52. Guide hood; 53. Frame hanging plate; 54. Hood body 6. Cover; 7. Opening and closing components; 8. Opening and closing motor; 9. Opening and closing gear; 10. Opening and closing rack; 11. Opening and closing slide; 12. Slide groove; 13. Sealing slider; 14. Slide guide groove; 15. Slide guide plate; 16. Return spring; 17. Feeding components; 18. Feeding support; 19. Feeding shaft; 10. Feeding roller; 11. Belt drive component; 12. Feeding motor; 13. Feeding component; 14. Feeding transmission belt; 15. Feeding push block; 16. Limiting components; 17. U-shaped frame; 18. Limiting slider; 19. V-shaped locking block; 10. Slide guide rod; 11. Limiting spring. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] Traditional VOCs waste gas treatment devices typically use adsorbents to adsorb volatile organic compounds from waste gases. However, after a period of use, the adsorbent's adsorption capacity decreases, requiring cleaning or replacement. Existing devices often present challenges in adsorbent replacement due to complex, time-consuming, and labor-intensive procedures.

[0021] For this, please refer to Figures 1-12As shown, this application proposes a VOCs waste gas treatment device, including: a treatment cylinder 1, which serves as a container for waste gas treatment; an inlet pipe 101 and an exhaust pipe 102 are provided on the side wall of the treatment cylinder 1, and the inlet pipe 101 and the exhaust pipe 102 are located in the same vertical plane; a material exchange port is provided on the side wall of the treatment cylinder 1; a filter rotation drive 2 is provided at the center of the treatment cylinder 1 along the vertical direction; the filter rotation drive 2 includes a rotating sleeve shaft 23 rotatably mounted at the center of the treatment cylinder 1; a plurality of adsorption mounting frames 25 arranged in a ring array are provided on the outer periphery of the rotating sleeve shaft 23; an adsorption element 4 for adsorbing and purifying waste gas is detachably provided at the adsorption mounting frame 25; baffles 26 are provided at both the upper and lower ends of the adsorption mounting frame 25; the upper baffle 26 is located on... A limiting component 9 is provided for clamping the adsorption element 4; the adsorption element 4 includes an adsorption frame 41 with a rectangular frame structure, an activated carbon adsorption block 42 is provided on the inner periphery of the adsorption frame 41, and a frame slot 43 is provided at the upper end of the adsorption frame 41; a material changing hood 5 is provided on the outer side wall of the processing cylinder 1, the material changing hood 5 covers the outside of the material changing port, and an opening and closing component 6 for controlling the opening and closing of the material changing port is provided on the outer side wall of the processing cylinder 1 at the material changing port; the adsorption element 4 is stored inside the material changing hood 5, and a feeding component 7 for pushing the adsorption element 4 into the adsorption mounting frame 25 is provided inside the material changing hood 5, and a feeding component 8 for conveying the adsorption element 4 to the feeding component 7 and conveying the adsorption element 4 on the feeding component 7 out of the material changing hood 5 is provided inside the material changing hood 5.

[0022] The VOCs waste gas treatment device in this embodiment establishes an automatic replacement system for the adsorbent 4 by setting a material replacement port on the treatment cylinder 1 and cooperating with the material replacement hood 5, the feeding component 7, and the conveying component 8. This system enables the automatic storage, transportation, and loading / unloading of the adsorbent 4, effectively solving the problems of complex, time-consuming, and labor-intensive adsorbent replacement operations in traditional VOCs waste gas treatment devices. It improves the convenience and efficiency of adsorbent replacement and ensures the continuity of the waste gas treatment process.

[0023] In some of the embodiments described above in this application, an inlet pipe and an exhaust pipe are proposed for inputting and outputting waste gas, and a material exchange port is proposed for replacing the adsorption element. However, in this process, the position of the inlet pipe and the exhaust pipe may lead to uneven airflow distribution, affecting the adsorption efficiency. At the same time, if the position of the material exchange port is the same as the airflow plane, it may cause operational interference or waste gas leakage risk, increasing the complexity of the process.

[0024] In this regard, this application further proposes a VOCs waste gas treatment device, please refer to [link / reference]. Figures 1-3 As shown, the air inlet pipe 101 is located at the upper part of the processing cylinder 1, and the exhaust pipe 102 is located at the lower part of the processing cylinder 1. The air inlet pipe 101 and the exhaust pipe 102 are in the same vertical plane, and the vertical plane where the material exchange port is located is perpendicular to the vertical plane where the air inlet pipe 101 and the exhaust pipe 102 are located.

[0025] Specifically, the inlet pipe 101 is located at the upper part of the treatment cylinder 1, and the exhaust pipe 102 is located at the lower part of the treatment cylinder 1. This layout aims to utilize gravity or natural convection to assist the exhaust gas in flowing from top to bottom within the treatment cylinder 1, ensuring that the exhaust gas can fully contact the adsorption element 4, thereby improving the adsorption efficiency. For example, the inlet pipe 101 can open directly into the top side wall of the treatment cylinder 1, and the exhaust pipe 102 can open into the bottom side wall of the treatment cylinder 1, forming a vertical through-flow path. Alternatively, the inlet pipe 101 can be designed with a structure featuring a guide plate or diffuser to ensure that the exhaust gas is evenly distributed in the upper space after entering the treatment cylinder 1, avoiding localized high-speed airflow; the exhaust pipe 102 can also be designed with a porous or annular collection structure to evenly collect the treated exhaust gas.

[0026] Meanwhile, the intake pipe 101 and the exhaust pipe 102 are located in the same vertical plane, which is intended to ensure that the main flow direction of the exhaust gas in the treatment cylinder 1 remains consistent, reduce the deflection of the airflow in the horizontal direction and the generation of eddies, thereby facilitating the uniform contact between the exhaust gas and the adsorption element 4.

[0027] In addition, the vertical plane where the material replacement port is located is perpendicular to the vertical planes where the air inlet pipe 101 and the exhaust pipe 102 are located. This vertical layout is intended to effectively isolate the waste gas treatment flow path from the replacement operation area of ​​the adsorbent 4 in space, so as to avoid interference with the ongoing waste gas treatment process during the material replacement process, and at the same time reduce the risk of waste gas leakage.

[0028] Through the above technical solution, this application effectively solves the problems of uneven airflow distribution and potential interference caused by material replacement operations during waste gas treatment by optimizing the relative positional layout of the inlet pipe 101, exhaust pipe 102, and material replacement port on the treatment cylinder 1. Specifically, the design of the inlet pipe 101 located at the upper part of the treatment cylinder 1 and the exhaust pipe 102 located at the lower part, combined with both being on the same vertical plane, allows the waste gas to flow evenly from top to bottom, fully contacting the adsorbent 4, thereby significantly improving the efficiency of waste gas adsorption and purification. At the same time, the vertical plane of the material replacement port is perpendicular to the vertical planes of the inlet pipe 101 and the exhaust pipe 102, physically isolating the waste gas treatment area from the adsorbent 4 replacement area, effectively avoiding interference with the ongoing waste gas treatment process when replacing the adsorbent 4, reducing the risk of waste gas leakage, and ensuring the safety and convenience of operation. These features work synergistically to enable the entire VOCs waste gas treatment device to maintain high-efficiency treatment capacity while also providing a more optimized maintenance and operation experience.

[0029] In some of the solutions described above in this application, a filter rotation drive is proposed to drive the adsorption mounting frame to rotate. However, in this process, the drive method lacks a specific structural design, which may lead to low drive efficiency or unstable operation of the rotating sleeve shaft, affecting the continuity and reliability of the waste gas treatment process.

[0030] For this, please refer to Figures 1-5 As shown, the filter rotary drive 2 also includes a rotary motor 21 fixedly installed on the top of the processing cylinder 1. A drive gear 22 is fixedly installed on the output shaft of the rotary motor 21, and an external gear disk 24 that meshes with the drive gear 22 is fixedly installed on the upper part of the rotating sleeve shaft 23.

[0031] Through the above technical solution, the rotary motor 21 provides power, and through the engagement of the drive gear 22 on its output shaft with the external gear disk 24 on the upper part of the rotary sleeve shaft 23, the rotational motion is precisely and stably transmitted to the rotary sleeve shaft 23. This gear transmission method has a compact structure, stable transmission ratio, and strong load-bearing capacity, which can ensure that the rotary sleeve shaft 23 rotates smoothly and efficiently, thereby ensuring that the adsorption mounting frame 25 and the adsorption element 4 on it can rotate at a preset speed and path, so that the VOCs waste gas can fully contact the adsorption element 4, improving the adsorption efficiency and the continuity and reliability of waste gas treatment. At the same time, fixing the rotary motor 21 to the top of the treatment cylinder 1 further optimizes the stability of the overall structure and the convenience of maintenance, effectively solving the problems of low drive efficiency and unstable operation.

[0032] In some of the embodiments described above in this application, a material replacement hood is proposed to cover the material replacement port and store the adsorption components. However, in its implementation, there is a lack of effective guiding, hanging and storage mechanisms, resulting in low adsorption component replacement efficiency and inconvenient operation.

[0033] In this regard, this application further proposes a VOCs waste gas treatment device, please refer to [link / reference]. Figures 1-5 As shown, the material changing hood 5 includes two sets of guide hoods 52 fixedly installed on the outer wall of the processing cylinder 1. The two sets of guide hoods 52 are used to guide the opening and closing of the opening and closing component 6. A storage hood 51 for replacing the adsorption component 4 is provided between the two sets of guide hoods 52. Two sets of frame hanging plates 53 that slide with the frame slot 43 are fixedly installed on the top inner side of the storage hood 51. The two sets of frame hanging plates 53 are symmetrically distributed on both sides of the feeding component 7 for hanging the adsorption component 4. Covers 54 are provided on both sides of the storage hood 51 for putting the adsorption component 4 into the storage hood 51 or taking the adsorption component 4 out of the storage hood 51.

[0034] Through the above technical solution, this application effectively solves the problems of low replacement efficiency and inconvenient operation of the adsorption component. Specifically, the two sets of guide covers 52 fixedly installed on the outer wall of the processing cylinder 1 provide precise guidance for the opening and closing movement of the opening and closing component 6, ensuring the smoothness and reliability of the opening and closing process of the material replacement port. The storage cover 51 set between the two sets of guide covers 52 provides a dedicated storage and turnover space for the adsorption component 4, so that the adsorption component 4 can be stored in an orderly manner and quickly retrieved during replacement. The two sets of frame hanging plates 53 fixedly installed on the top inner side of the storage cover 51 slide and cooperate with the frame slots 43 of the adsorption component 4, realizing stable hanging and precise guidance of the adsorption component 4, avoiding shaking or misalignment of the adsorption component 4 during replacement. The frame hanging plates 53 are symmetrically distributed on both sides of the feeding component 7, further ensuring the positional accuracy of the adsorption component 4 when pushed by the feeding component 7, and significantly improving the feeding efficiency. In addition, the cover 54 on both sides of the storage hood 51 provides operators with a convenient channel for inserting and removing the adsorption component 4, which simplifies the manual operation steps and thus improves the convenience and efficiency of adsorption component replacement, and reduces maintenance costs and downtime.

[0035] In some of the embodiments described above in this application, a feeding component is proposed to push the adsorption element into the adsorption mounting frame. However, in its implementation, the pushing mechanism may be inefficient or unreliable, making it difficult to replace the adsorption element and affecting the waste gas treatment efficiency.

[0036] For this, please refer to Figures 6-7 As shown, the feeding component 7 includes a feeding support 71 fixedly installed at the bottom of the storage hood 51. Several sets of feeding shafts 72 are rotatably mounted on the feeding support 71. A feeding roller 73 is fixedly installed in the middle of the feeding shaft 72, and the several feeding shafts 72 are connected by a belt drive component 74. A feeding motor 75 for driving one set of feeding shafts 72 to rotate is fixedly installed on the side wall of the feeding support 71.

[0037] Through the above technical solution, the structure of the feeding component 7 has been optimized, significantly improving the pushing efficiency and reliability of the adsorbent 4. Specifically, the feeding motor 75, fixedly mounted on the feeding support 71, provides stable and automated power for pushing the adsorbent 4, eliminating the tediousness and uncertainty of manual operation. The feeding rollers 73 mounted on several sets of feeding shafts 72 can directly and evenly contact the adsorbent 4, smoothly pushing it into the adsorption mounting frame 25 through rolling friction, effectively reducing resistance during the pushing process. At the same time, the feeding shafts 72 achieve synchronous transmission through the belt drive component 74, ensuring that all feeding rollers 73 push the adsorbent 4 at the same speed and direction, thereby avoiding jamming, tilting, or damage to the adsorbent 4 during the pushing process, ensuring the smoothness and accuracy of the pushing action. Overall, the design of this feeding component 7 makes the replacement process of the adsorbent 4 more convenient, efficient, and automated, significantly shortening the replacement time, reducing the difficulty of operation, and thus ensuring the continuous and stable operation and treatment efficiency of the VOCs waste gas treatment device.

[0038] In some embodiments described above in this application, a feeding component is proposed for conveying the adsorbent to the loading component and for conveying the adsorbent from the loading component out of the material changing hood. However, in its implementation, ensuring that the adsorbent can move stably and efficiently along the frame mounting plate, and avoiding blockages, jams, or low conveying efficiency caused by uneven pushing or positional deviation, is a problem that needs to be solved.

[0039] For this, please refer to Figures 6-7 As shown, this application further proposes a feeding component 8 including a feeding seat plate 81 fixedly disposed in the middle of the inner side of the storage hood 51. Two sets of feeding shafts 82 are rotatably mounted on the feeding seat plate 81. Transmission wheels are fixedly mounted on the feeding shafts 82. The two sets of transmission wheels are connected by a feeding transmission belt 84. Several feeding push blocks 85 for pushing the adsorption component 4 to move along the frame hanging plate 53 are fixedly disposed on the outer side of the feeding transmission belt 84. A feeding motor 83 for driving one set of feeding shafts 82 to rotate is fixedly mounted at the lower end of the feeding seat plate 81.

[0040] Through the above technical solution, the feeding component 8, with its ingenious structural design, effectively solves the problems of insufficient stability, low efficiency, and positional deviation that may occur in the adsorption component 4 during the conveying process. Specifically, the feeding seat plate 81, which is fixedly set in the middle of the inner side of the storage hood 51, provides a solid support for the entire feeding mechanism, effectively preventing the component from shaking or shifting during operation, thereby ensuring the reliability of the conveying process. The two sets of feeding shafts 82 rotatably mounted on the feeding seat plate 81, together with the transmission wheels fixedly mounted on them and the feeding transmission belt 84 connecting the two sets of transmission wheels, form a synchronous and stable transmission system, eliminating the risk of uneven driving force caused by asynchrony. Several feeding pushers 85 fixedly set on the outer side of the feeding transmission belt 84 can directly and evenly act on the adsorption component 4, and under the drive of the feeding motor 83, accurately push the adsorption component 4 to move along the frame hanging plate 53. The guiding function of the frame mounting plate 53, combined with the directional pushing of the feeding pusher 85, effectively prevents the adsorption component 4 from derailing, jamming, or blocking during movement, significantly improving the conveying efficiency and positioning accuracy of the adsorption component 4. The feeding motor 83, as the power source, provides continuous and controllable driving force, further ensuring the smooth and efficient replacement process of the adsorption component 4.

[0041] In some of the embodiments described above in this application, an opening and closing component is proposed to control the opening and closing of the material exchange port. However, in its implementation, manual operation is inefficient and it is difficult to achieve synchronous movement, resulting in poor sealing or low efficiency when replacing the adsorbent.

[0042] For this, please refer to Figures 9-11 As shown, this application further proposes an opening and closing component 6 including two sets of opening and closing slides 64 slidably disposed on the outer side wall of the processing cylinder 1 and an opening and closing motor 61 fixedly mounted on the material changing hood 5. The two sets of opening and closing slides 64 are symmetrically distributed around the vertical center of the material changing port, and an opening and closing rack 63 is fixedly disposed at the upper end of each set of opening and closing slides 64. An opening and closing gear 62 is fixedly mounted on the output shaft of the opening and closing motor 61. The opening and closing gear 62 meshes with the two sets of opening and closing racks 63 respectively, and the two sets of opening and closing racks 63 are arranged in a circular array on both sides of the opening and closing gear 62. The opening and closing motor 61 drives the opening and closing gear 62 to rotate, thereby realizing the synchronous movement of the two sets of opening and closing racks 63 towards or away from each other, and driving the two sets of opening and closing slides 64 to realize the on-off control of the material changing port.

[0043] Specifically, the opening / closing slide 64 is a mechanical component used to cover or expose the material changing port. Its sliding arrangement on the outer wall of the processing cylinder 1 means that the opening / closing slide 64 can move along the surface of the processing cylinder 1, thereby opening or closing the material changing port.

[0044] Two sets of opening and closing slides 64 are symmetrically distributed on both sides of the vertical centerline of the material changing port. This means that they are set on both sides of the material changing port and are equidistant from the centerline. This symmetrical distribution helps to maintain the balance of forces during opening and closing, and avoids jamming or tilting of the opening and closing slides 64 due to uneven force, thereby ensuring that the material changing port can open and close smoothly and reliably.

[0045] The opening and closing rack 63 is a mechanical transmission component that converts rotary motion into linear motion. It is fixedly mounted on the upper end of two sets of opening and closing slides 64, allowing the rack 63 to move together with the slides 64. The opening and closing gear 62 meshes with both sets of racks 63 simultaneously. This connection method allows one rotating gear 62 to simultaneously drive both sets of racks 63. The two sets of racks 63 are spatially positioned around the rotation center of the gear 62, located on either side, forming a symmetrical layout. This layout ensures that when the gear 62 rotates, it can simultaneously and evenly drive the racks 63 on both sides, thus achieving synchronous motion. When the opening and closing motor 61 starts and drives the gear 62 to rotate, due to the meshing relationship between the gear 62 and the two sets of racks 63 and their symmetrical distribution, both sets of racks 63 will be driven simultaneously. Depending on the rotation direction of the opening and closing gear 62, the two sets of opening and closing racks 63 can synchronously move closer to the center (moving towards each other) or move further away from each other (moving apart). Ultimately, the synchronous linear movement of the opening and closing racks 63 will directly drive the two sets of opening and closing slides 64 fixedly connected to them to move accordingly. When the opening and closing slides 64 move towards each other, they will gradually cover the material changing port until it is completely closed; when the opening and closing slides 64 move apart, they will gradually move away from the material changing port until it is fully open.

[0046] Through the above technical solution, this application utilizes an opening and closing motor 61 to drive an opening and closing gear 62 to rotate, which in turn drives two sets of opening and closing racks 63 to move synchronously towards or away from each other via a gear and rack mechanism. Since the opening and closing racks 63 are fixedly connected to the opening and closing slides 64, they can precisely drive the two sets of opening and closing slides 64 to move synchronously, thereby achieving automated and efficient on / off control of the material changing port. This mechanical transmission method overcomes the problems of low efficiency and difficulty in synchronizing movement during manual operation, ensuring the smoothness and reliability of the opening and closing process. In particular, the two sets of opening and closing slides 64 are symmetrically distributed around the vertical center of the material changing port, and a single opening and closing gear 62 simultaneously drives the opening and closing racks 63 on both sides, effectively ensuring the synchronicity of the two sets of opening and closing slides 64 during movement, avoiding the problem of poor sealing caused by asynchrony, and significantly improving the efficiency of the material changing operation and the overall sealing performance of the device. Furthermore, the introduction of the opening and closing motor 61 allows for remote or programmed control of the opening and closing operation of the material changing port, further improving the convenience and safety of operation.

[0047] In some of the embodiments described above in this application, an opening and closing slide is proposed to control the opening and closing of the material exchange port. However, in its implementation, the opening and closing slide may not be able to tightly seal the material exchange port when it moves, resulting in exhaust gas leakage, or the sliding process may be stuck, affecting the operating efficiency and sealing reliability.

[0048] For this, please refer to Figures 9-11 As shown, this application further proposes the following technical solution: A slide groove 641 is provided on the side of the opening and closing slide 64 near the processing cylinder 1, and a blocking slider 65 is slidably disposed in the slide groove 641. The inner side of the blocking slider 65 is provided with an arc surface equal to the inner wall of the processing cylinder 1, and a slider guide groove 651 is provided on the outer side of the blocking slider 65. A slide guide plate 66 is provided on the opening and closing slide 64 to slide in cooperation with the slider guide groove 651, and the blocking slider 65 and the bottom of the slide groove 641 are connected by multiple sets of return springs 67.

[0049] Through the above technical solution, this application further optimizes the structural design of the opening and closing slide 64 based on the control of the material exchange port by the opening and closing component 6, effectively solving the problems of poor sealing and sliding jamming of the material exchange port. Specifically, the slide groove 641 provided in the opening and closing slide 64 provides precise sliding space for the blocking slider 65, ensuring that the blocking slider 65 can move stably and reliably. The inner side of the blocking slider 65 is designed with an arc surface equal to that of the inner wall of the treatment cylinder 1, so that when the blocking slider 65 is closed, it can achieve a tight and seamless fit with the inner wall of the treatment cylinder 1, thereby greatly enhancing the sealing performance of the material exchange port, effectively preventing the leakage of VOCs waste gas during the treatment process, and ensuring treatment efficiency and environmental safety. At the same time, the slider guide groove 651 on the outer side of the blocking slider 65 slides in cooperation with the slide guide plate 66 on the opening and closing slide 64, forming a stable guiding mechanism, effectively guiding the blocking slider 65 to slide smoothly along the predetermined path, significantly reducing friction and jamming during the sliding process, and improving the smoothness and reliability of the opening and closing operation. In addition, multiple sets of return springs 67 are connected between the sealing slider 65 and the bottom of the sliding seat groove 641, providing additional elastic pressure during sealing to ensure that the sealing slider 65 can be tightly pressed together, further improving the sealing effect. When opening, the return force of the springs can also assist the sealing slider 65 to quickly return to its original position, thereby improving the efficiency of material changing operations and the overall stability of the system. This design allows the material changing port to maintain excellent sealing and smooth operation even under frequent opening and closing, avoiding exhaust gas leakage due to poor sealing and equipment failure due to jamming, significantly improving the operational reliability and maintenance convenience of the VOCs exhaust gas treatment device.

[0050] In some of the embodiments described above in this application, a limiting component is proposed to clamp the adsorption element. However, in the process of implementation, the limiting component may not clamp securely or be inconvenient to operate, which may cause the adsorption element to loosen easily on the adsorption mounting frame or result in low efficiency when replacing it, affecting the sealing performance and adsorption effect of the waste gas treatment device.

[0051] For this, please refer to Figure 4 and Figure 12 As shown, this application further proposes an improved limiting component 9, which includes a U-shaped frame 91 invertedly mounted on the upper baffle 26. A limiting slider 92 is vertically slidably mounted on the inner side of the U-shaped frame 91. A V-shaped locking block 93 is fixedly mounted at the lower end of the limiting slider 92 and engages with the frame slot 43 for limiting. A through hole is provided on the baffle 26 for the V-shaped locking block 93 to pass through. A slider guide rod 94 is slidably connected to the upper part of the U-shaped frame 91. The lower end of the slider guide rod 94 is fixedly connected to the limiting slider 92. A limiting spring 95 is connected between the upper end of the limiting slider 92 and the top of the U-shaped frame 91.

[0052] Through the above technical solution, when it is necessary to clamp the adsorbent 4, the elastic force of the limiting spring 95 pushes the limiting slider 92 downward, causing the V-shaped locking block 93 to pass through the through hole on the baffle plate 26 and precisely engage in the frame slot 43 of the adsorbent 4, thereby achieving a stable positioning of the adsorbent 4. The locking design of the V-shaped locking block 93 and the frame slot 43, combined with the continuous pressure provided by the limiting spring 95, significantly enhances the fixation reliability of the adsorbent 4 on the adsorption mounting frame 25, effectively preventing the adsorbent 4 from loosening due to vibration or airflow impact during device operation, thus ensuring the sealing performance and adsorption effect of the waste gas treatment device. At the same time, when it is necessary to replace the adsorbent 4, simply apply external force to overcome the elastic force of the limiting spring 95, causing the limiting slider 92 to move upward, and the V-shaped locking block 93 can disengage from the frame slot 43. The operation is simple and quick, greatly improving the replacement efficiency of the adsorbent 4. This structural design not only solves the problem of unreliable clamping of the adsorption components in existing technologies, but also optimizes the convenience of replacement operations, improving the operational reliability and maintenance efficiency of the entire VOCs waste gas treatment device.

[0053] In some of the solutions described above in this application, an adsorption mounting frame and a feeding component are proposed for replacing the adsorption element. However, in the implementation process, pushing the adsorption element from the adsorption mounting frame to the feeding component may be inefficient or require manual intervention, resulting in a cumbersome and time-consuming replacement process. In response, this application further proposes a material replacement pusher 3, which is disposed inside the rotating sleeve shaft 23, for pushing the adsorption element 4 on the adsorption mounting frame 25 onto the feeding component 7.

[0054] Specifically, please refer to Figures 3-5As shown, the material changing pusher 3 includes a motor bracket 31 fixedly installed on the top of the processing cylinder 1. The motor bracket 31 serves as the support structure for the entire pushing mechanism, providing a stable mounting base for the motor and other transmission components in the material changing pusher 3, ensuring their positional accuracy and stability during operation. The motor bracket 31 can be made of high-strength metal sheet, such as steel plate or aluminum alloy plate, and firmly fixed to the top of the processing cylinder 1 by welding or bolting; alternatively, it can be cast or integrally molded to form a support structure with sufficient rigidity and strength.

[0055] A bidirectional lead screw 33 is rotatably mounted between the motor bracket 31 and the bottom of the processing cylinder 1. The bidirectional lead screw 33 is a rod with helical grooves that, in conjunction with a nut, converts rotational motion into linear motion, achieving linear motion in two directions. Its function is as the core component for power transmission, converting the rotational power of the material changing motor 32 into the linear reciprocating motion of the lead screw slide 35. The bidirectional lead screw 33 can be a trapezoidal lead screw or a ball screw, selected according to the required transmission accuracy and load-bearing capacity; its thread direction can also be designed as single-start or multi-start to adapt to different transmission speed and efficiency requirements.

[0056] A limit guide rod 34 is fixedly installed at the lower end of the motor bracket 31. The limit guide rod 34 is a straight rod used to guide and constrain the linear motion trajectory of the lead screw slide 35. Its function is to ensure that the lead screw slide 35 maintains the correct direction and position when moving along the bidirectional lead screw 33, preventing it from deflecting or wobbling. The limit guide rod 34 can be a precision-ground linear guide or optical shaft, used in conjunction with linear bearings to provide low-friction, high-precision sliding; alternatively, it can be a guide with a rectangular or irregular cross-section, used in conjunction with a corresponding slider structure to provide stronger anti-torsional capacity.

[0057] A material-changing motor 32 for driving the bidirectional lead screw 33 to rotate is fixedly mounted on the upper end of the motor bracket 31. The material-changing motor 32 is an electric motor used to provide rotational power to drive the bidirectional lead screw 33 to rotate. Its function is to provide a power source for the material-changing push 3, realizing the automated pushing of the adsorption component 4. The material-changing motor 32 can be a stepper motor or a servo motor to achieve precise position control and speed adjustment; alternatively, it can also be an AC or DC geared motor, which provides sufficient torque and a suitable speed through a reducer.

[0058] Two sets of screw slides 35 are threadedly connected to the bidirectional lead screw 33. The screw slides 35 are components that are threadedly connected to the bidirectional lead screw 33 and slidably connected to the limiting guide rod 34. Their function is to convert the rotational motion of the bidirectional lead screw 33 into its own linear motion and to serve as an intermediate link connecting the push rod 36. The screw slides 35 can adopt a slider structure with internal threads, lined with wear-resistant material or balls, and externally mate with the limiting guide rod 34; alternatively, they can adopt a split design, with the nut part connected to the lead screw and the slider part connected to the guide rod, the two combined by a rigid connecting component.

[0059] The lead screw slide 35 is slidably connected to the limiting guide rod 34. Both sets of lead screw slides 35 are rotatably connected to a pusher link 36 on the side facing the material changing hood 5. The pusher link 36 is a rod connecting the lead screw slide 35 and the pusher slider 37, and is capable of rotation. Its function is to transmit the linear motion of the lead screw slide 35 to the pusher slider 37, and allow the pusher slider 37 to rotate or oscillate within a certain range to adapt to changes in posture during the pushing process. The pusher link 36 can be a link with ball joints or pins at both ends to provide multi-degree-of-freedom rotation; alternatively, it can be a flexible link or a link with elastic elements to absorb impact or provide a certain degree of cushioning.

[0060] Push sliders 37 are rotatably connected to two sets of push rods 36. The push sliders 37 are components that directly contact and push the adsorption element 4. They are rotatably connected to the push rods 36 and slidably connected to the limiting rods. Their function is to directly apply a pushing force to the adsorption element 4, pushing it from the adsorption mounting bracket 25 towards the sleeve shaft hole 231, and then towards the feeding component 7. The push sliders 37 can be sliders with flat or curved contact surfaces, made of wear-resistant materials to reduce wear on the adsorption element 4; alternatively, anti-slip textures or elastic pads can be provided on the slider surface to increase stability during pushing.

[0061] A limiting link is slidably connected to the push slider 37, and the limiting link is fixedly connected to the limiting guide rod 34. The limiting link further constrains the movement trajectory of the push slider 37, ensuring that it moves precisely along a preset path during the pushing process and preventing it from deviating or getting stuck. The limiting link can have one end slidably engaged with the push slider 37 and the other end fixed to the limiting guide rod 34; alternatively, it can also have a sleeve structure, with the sleeve sliding on the limiting guide rod 34 and the push slider 37 connected to the sleeve via a pin or other means.

[0062] The sidewall of the rotating sleeve 23 is provided with multiple sleeve holes 231 through which the push slider 37 passes. The number and position of the sleeve holes 231 correspond to the adsorption mounting bracket 25. The sleeve holes 231 are openings provided on the sidewall of the rotating sleeve 23 for the push slider 37 to pass through. Their function is to allow the push slider 37 to extend and contact the adsorption component 4 on the adsorption mounting bracket 25 when it is pushing inside the rotating sleeve 23. The shape of the sleeve holes 231 can be rectangular or elliptical, and their size should be slightly larger than the cross-sectional size of the push slider 37 to ensure smooth passage; the edges of the holes can be chamfered or rounded to reduce friction and wear.

[0063] Through the above technical solution, the material changing and pushing mechanism 3 forms a precise mechanical linkage mechanism through the coordinated action of the motor bracket 31, the bidirectional lead screw 33, the material changing motor 32, the limiting guide rod 34, the lead screw slide 35, the pushing connecting rod 36, the pushing slider 37, and the limiting connecting rod. When it is necessary to replace the adsorption component 4, the material changing motor 32 drives the bidirectional lead screw 33 to rotate, causing the lead screw slide 35 to move linearly along the limiting guide rod 34. The lead screw slide 35 drives the pushing slider 37 through the pushing connecting rod 36, causing it to extend from the sleeve hole 231 of the rotating sleeve 23, accurately aligning with and pushing the adsorption component 4 on the adsorption mounting frame 25. Since the number and position of the sleeve holes 231 correspond to the adsorption mounting frame 25, the accuracy of the pushing is ensured. This realizes the automated pushing of the adsorption component 4 from the adsorption mounting frame 25 to the feeding component 7, significantly improving the material changing efficiency, reducing manual intervention, and reducing the difficulty and labor intensity of operation. Meanwhile, the cooperation of the bidirectional lead screw 33 and the limiting guide rod 34 ensures the smoothness and accuracy of the pushing action, preventing the adsorbent 4 from jamming or being damaged during the pushing process. The precise alignment of the pushing slider 37 through the sleeve hole 231 ensures that each push accurately acts on the target adsorbent 4, improving the reliability of material replacement. Overall, the introduction of this material replacement pushing 3 makes the adsorbent replacement process of the VOCs waste gas treatment device more efficient, convenient, and automated, improving the continuity of equipment operation and the convenience of maintenance.

[0064] The following example will provide a more detailed explanation of the above technical solution: A chemical plant generates VOCs-containing waste gas during its production process. To comply with environmental regulations, the user requires a highly efficient and easy-to-maintain VOCs waste gas treatment system. Traditional treatment systems involve complex and time-consuming replacement processes after the adsorbent becomes saturated, and there is a risk of waste gas leakage, causing inconvenience to the user.

[0065] This device provides a solution. The core of the device is a treatment cylinder 1, which serves as a container for treating waste gas. An inlet pipe 101 is located on the upper part of the side wall of the treatment cylinder 1, and an exhaust pipe 102 is located on the lower part; both are located in the same vertical plane, ensuring that the waste gas flows from top to bottom through the adsorption area. A material exchange port is also provided on the side wall of the treatment cylinder 1. The vertical plane of this material exchange port is perpendicular to the vertical planes of the inlet pipe 101 and the exhaust pipe 102, facilitating operation and not affecting the waste gas flow path.

[0066] At the center of the treatment cylinder 1, a filter rotation drive 2 is installed vertically. The filter rotation drive 2 includes a rotating sleeve shaft 23 rotatably mounted at the center of the treatment cylinder 1. Several adsorption mounting frames 25 arranged in a ring array are evenly distributed around the outer periphery of the rotating sleeve shaft 23. Each adsorption mounting frame 25 is detachably equipped with an adsorption element 4 for adsorbing and purifying waste gas. The adsorption element 4 is composed of a rectangular frame structure adsorption frame 41, with activated carbon adsorption blocks 42 arranged on its inner periphery and a frame slot 43 at its upper end. Both the upper and lower ends of the adsorption mounting frame 25 are equipped with baffles 26. A limiting component 9 is provided on the upper baffle 26 for clamping the adsorption element 4. The limiting component 9 includes a U-shaped frame 91 invertedly mounted on the upper baffle 26, a limiting slider 92 that slides vertically inside the U-shaped frame 91, and a V-shaped locking block 93 that engages with the frame slot 43 at the lower end of the limiting slider 92. The baffle plate 26 has a through hole for the V-shaped locking block 93 to pass through. A slider guide rod 94 is slidably connected to the upper part of the U-shaped frame 91. The lower end of the slider guide rod 94 is fixedly connected to the limiting slider 92. A limiting spring 95 is connected between the upper end of the limiting slider 92 and the top of the U-shaped frame 91. When the adsorption component 4 is installed in place, the V-shaped locking block 93 is engaged into the frame slot 43 under the action of the limiting spring 95, achieving reliable limiting.

[0067] A material replacement hood 5 is installed on the outer wall of the treatment cylinder 1 at the material replacement port. The material replacement hood 5 covers the outside of the material replacement port, forming a relatively sealed space to effectively prevent exhaust gas leakage when replacing the adsorbent 4. The material replacement hood 5 includes two sets of guide covers 52 fixedly installed on the outer wall of the treatment cylinder 1 to guide the opening and closing of the opening and closing component 6. A storage hood 51 for replacing the adsorbent 4 is provided between the two sets of guide covers 52. Two sets of frame hanging plates 53 are fixedly installed on the inner top of the storage hood 51, which slide in conjunction with the frame slots 43. The two sets of frame hanging plates 53 are symmetrically distributed on both sides of the feeding component 7 for hanging new or untreated adsorbents 4. Covers 54 are provided on both sides of the storage hood 51 to facilitate the user to put new adsorbents 4 into the storage hood 51 or to remove saturated adsorbents 4 from the storage hood 51.

[0068] The material changing hood 5 stores new adsorbents 4 and is provided with a feeding component 7 for pushing the adsorbents 4 into the adsorption mounting frame 25, and a feeding component 8 for conveying the adsorbents 4 to the feeding component 7 and conveying the adsorbents 4 on the feeding component 7 out of the material changing hood 5.

[0069] An opening and closing component 6 for controlling the opening and closing of the material changing port is provided on the outer wall of the processing cylinder 1 at the material changing port. To achieve automatic replacement of the adsorbent 4, a material changing pusher 3 for pushing the adsorbent 4 from the adsorption mounting frame 25 onto the feeding component 7 is provided on the inner side of the rotating sleeve shaft 23. The material changing pusher 3 includes a motor bracket 31 fixedly installed on the top of the processing cylinder 1, and a bidirectional lead screw 33 rotatably connected between the motor bracket 31 and the bottom of the processing cylinder 1. A limit guide rod 34 is fixedly installed at the lower end of the motor bracket 31, and a material changing motor 32 for driving the bidirectional lead screw 33 to rotate is fixedly installed at the upper end of the motor bracket 31. Two sets of lead screw slides 35 are threadedly connected to the bidirectional lead screw 33, and the lead screw slides 35 are slidably connected to the limit guide rods 34. Both sets of lead screw slides 35 are rotatably connected to push rods 36 on the side facing the material changing hood 5. Push sliders 37 are rotatably connected to the two sets of push rods 36. Limiting rods are slidably connected to the push sliders 37, and the limiting rods are fixedly connected to the limiting guide rods 34. The side wall of the rotating sleeve shaft 23 is provided with multiple sleeve shaft holes 231 for the push sliders 37 to pass through. The number and position of the sleeve shaft holes 231 correspond to the adsorption mounting frame 25.

[0070] When the user needs to replace the saturated adsorption element 4, the entire replacement process is as follows: First, the waste gas treatment device operates normally. The rotary motor 21 drives the rotating sleeve shaft 23 to rotate, so that the adsorption element 4 adsorbs the waste gas evenly. When a certain adsorption element 4 reaches saturation, the control system will issue a replacement command.

[0071] The filter rotary drive 2 rotates the saturated adsorption element mounting bracket 25 to a position aligned with the material change port.

[0072] The opening and closing motor 61 starts, driving the opening and closing gear 62 to rotate, causing the two sets of opening and closing racks 63 to move apart, which in turn drives the opening and closing slide 64 to slide to both sides, thereby opening the material exchange port. At this time, the blocking slider 65, guided by the slide guide plate 66 and under the action of the return spring 67, disengages from the inner wall of the processing cylinder 1, providing a channel for the adsorption element 4 to enter and exit.

[0073] The material changing motor 32 starts, driving the bidirectional lead screw 33 to rotate. The lead screw slide 35 moves along the bidirectional lead screw 33 and the limiting guide rod 34, driving the pushing connecting rod 36 and the pushing slider 37. The pushing slider 37 extends into the rotating sleeve shaft 23 through the sleeve shaft hole 231, pushing the saturated adsorbent 4. During the pushing process, the frame slot 43 of the adsorbent 4 disengages from the V-shaped locking block 93 of the limiting component 9, and the saturated adsorbent 4 is pushed out of the adsorption mounting frame 25 and falls onto the feeding component 7 inside the material changing hood 5.

[0074] The feeding motor 75 starts, driving the feeding roller 73 to rotate and conveying the saturated adsorbent 4 from the feeding component 7 to the feeding component 8. The feeding motor 83 starts, driving the feeding pusher 85 on the feeding conveyor belt 84 to push the saturated adsorbent 4 out of the replacement hood 5 along the frame hanging plate 53 for the user to perform subsequent regeneration or treatment.

[0075] Simultaneously, the feeding component 8 transports the new adsorbent 4 pre-placed in the storage hood 51 to the loading component 7. The loading motor 75 restarts, driving the loading roller 73 to push the new adsorbent 4 into the empty adsorbent mounting frame 25. When the new adsorbent 4 is in place, the V-shaped locking block 93 of the limiting component 9 automatically engages with the frame slot 43 of the adsorbent 4 under the action of the limiting spring 95, firmly fixing it in place.

[0076] After the new adsorption component 4 is installed, the material changing motor 32 rotates in the reverse direction, retracting the push slider 37.

[0077] The opening and closing motor 61 starts in reverse, driving the opening and closing gear 62 to rotate, causing the two sets of opening and closing racks 63 to move towards each other, which in turn drives the opening and closing slide 64 to close the material changing port. Under the action of the return spring 67, the sealing slider 65 is pressed tightly against the inner wall of the processing cylinder 1 again, restoring the sealing of the processing cylinder 1.

[0078] The filter rotation drive 2 continues to operate normally, or rotates to the position of the next adsorbent 4 to be replaced.

[0079] Compared to the difficulties in adsorbent replacement in existing technologies, this device achieves automatic, rapid, and sealed replacement of the adsorbent element 4 through an integrated material replacement hood 5, automated opening and closing components 6, feeding components 7, conveying components 8, and internal material replacement pushers 3. Users do not need to stop the machine for cumbersome manual operations, greatly improving replacement efficiency and reducing labor costs and potential risks of exhaust gas leakage. In particular, the sealing slider 65 design in the opening and closing component 6 ensures the sealing of the internal parts of the treatment cylinder 1 during replacement, preventing exhaust gas leakage. The automatic locking and releasing mechanism of the limiting component 9 also simplifies the installation and disassembly process of the adsorbent element 4. The entire system significantly improves the ease of operation and maintenance of the device while ensuring the exhaust gas treatment effect.

[0080] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A VOCs exhaust gas treatment device, characterized by: include: The processing cylinder (1) serves as a container for treating waste gas. The side wall of the processing cylinder (1) is provided with an air inlet pipe (101) and an exhaust pipe (102), and the air inlet pipe (101) and the exhaust pipe (102) are in the same vertical plane. The side wall of the processing cylinder (1) is provided with a material exchange port. The processing cylinder (1) is provided with a filter rotation drive (2) along the vertical center. The filter rotation drive (2) includes a rotating sleeve shaft (23) rotatably installed at the center of the processing cylinder (1). The outer periphery of the rotating sleeve shaft (23) is provided with a plurality of adsorption mounting frames (25) arranged in a ring array. The adsorption mounting frame (25) is detachably provided with an adsorption element (4) for adsorbing and purifying waste gas. The upper and lower ends of the adsorption mounting frame (25) are provided with baffles (26). The upper baffle (26) is provided with a limiting component (9) for clamping the adsorption element (4). The adsorption element (4) includes an adsorption frame (41) with a rectangular frame structure. An activated carbon adsorption block (42) is provided on the inner periphery of the adsorption frame (41), and a frame slot (43) is provided on the upper end of the adsorption frame (41). The outer wall of the processing cylinder (1) is provided with a material changing hood (5), which covers the outside of the material changing port. The outer wall of the processing cylinder (1) is provided with an opening and closing component (6) for controlling the opening and closing of the material changing port. The material changing hood (5) stores an adsorbent (4). The material changing hood (5) is provided with a feeding component (7) for pushing the adsorbent (4) into the adsorption mounting frame (25). The material changing hood (5) is provided with a feeding component (8) for conveying the adsorbent (4) to the feeding component (7) and conveying the adsorbent (4) on the feeding component (7) out of the material changing hood (5).

2. The VOCs waste gas treatment device according to claim 1, characterized in that: The air inlet pipe (101) is located at the upper part of the processing cylinder (1), and the exhaust pipe (102) is located at the lower part of the processing cylinder (1). The air inlet pipe (101) and the exhaust pipe (102) are in the same vertical plane. The vertical plane where the material exchange port is located is perpendicular to the vertical plane where the air inlet pipe (101) and the exhaust pipe (102) are located.

3. The VOCs waste gas treatment device according to claim 1, characterized in that: The filter rotary drive (2) also includes a rotary motor (21) fixedly installed on the top of the processing cylinder (1). A drive gear (22) is fixedly installed on the output shaft of the rotary motor (21), and an external gear disk (24) meshing with the drive gear (22) is fixedly installed on the upper part of the rotary sleeve shaft (23).

4. The VOCs waste gas treatment device according to claim 1, characterized in that: The material changing hood (5) includes two sets of guide hoods (52) fixedly installed on the outer side wall of the processing cylinder (1). The two sets of guide hoods (52) are used to guide the opening and closing of the opening and closing component (6). A storage hood (51) for replacing the adsorbent (4) is provided between the two sets of guide hoods (52). Two sets of frame hanging plates (53) that slide with the frame slot (43) are fixedly installed on the top inner side of the storage hood (51). The two sets of frame hanging plates (53) are symmetrically distributed on both sides of the feeding component (7) for hanging the adsorbent (4). Covers (54) are provided on both sides of the storage hood (51) for putting the adsorbent (4) into the storage hood (51) or taking the adsorbent (4) out of the storage hood (51).

5. A VOCs waste gas treatment device according to claim 4, characterized in that: The feeding component (7) includes a feeding support (71) fixedly installed at the bottom of the storage hood (51). Several sets of feeding shafts (72) are rotatably installed on the feeding support (71). A feeding roller (73) is fixedly installed in the middle of the feeding shaft (72), and the several feeding shafts (72) are connected by a belt drive component (74). A feeding motor (75) for driving one set of feeding shafts (72) to rotate is fixedly installed on the side wall of the feeding support (71).

6. A VOCs waste gas treatment device according to claim 4, characterized in that: The feeding component (8) includes a feeding seat plate (81) fixedly installed in the middle of the inner side of the storage hood (51). Two sets of feeding shafts (82) are rotatably installed on the feeding seat plate (81). A transmission wheel is fixedly installed on the feeding shaft (82). The two sets of transmission wheels are connected by a feeding transmission belt (84). Several feeding push blocks (85) for pushing the adsorption component (4) to move along the frame hanging plate (53) are fixedly installed on the outer side of the feeding transmission belt (84). A feeding motor (83) for driving the feeding shaft (82) to rotate is fixedly installed at the lower end of the feeding seat plate (81).

7. A VOCs waste gas treatment device according to claim 4, characterized in that: The opening and closing component (6) includes two sets of opening and closing slides (64) slidably disposed on the outer side wall of the processing cylinder (1) and an opening and closing motor (61) fixedly installed on the material changing hood (5). The two sets of opening and closing slides (64) are symmetrically distributed around the center of the material changing port in the vertical direction. An opening and closing rack (63) is fixedly installed on the upper end of each of the two sets of opening and closing slides (64). An opening and closing gear (62) is fixedly installed on the output shaft of the opening and closing motor (61). The opening and closing gear (62) meshes with the two sets of opening and closing racks (63) respectively. The two sets of opening and closing racks (63) are arranged in a ring array on both sides of the opening and closing gear (62). The opening and closing motor (61) drives the opening and closing gear (62) to rotate, thereby realizing the synchronous movement of the two sets of opening and closing racks (63) towards each other or away from each other, and driving the two sets of opening and closing slides (64) to realize the on and off control of the material changing port.

8. A VOCs waste gas treatment device according to claim 7, characterized in that: The opening and closing slide (64) is provided with a slide groove (641) on the side near the processing cylinder (1). A blocking slider (65) is slidably provided in the slide groove (641). The inner side of the blocking slider (65) is provided with an arc surface equal to the inner wall of the processing cylinder (1). The outer side of the blocking slider (65) is provided with a slider guide groove (651). The opening and closing slide (64) is provided with a slide guide plate (66) that slides with the slider guide groove (651). The blocking slider (65) and the bottom of the slide groove (641) are connected by multiple sets of return springs (67).

9. A VOCs waste gas treatment device according to claim 1, characterized in that: The limiting component (9) includes a U-shaped frame (91) inverted on the upper partition plate (26). A limiting slider (92) is vertically slidably arranged inside the U-shaped frame (91). A V-shaped block (93) is fixedly arranged at the lower end of the limiting slider (92) to engage with the frame slot (43) for limiting. A through hole for the V-shaped block (93) to pass through is provided on the partition plate (26). A slider guide rod (94) is slidably connected to the upper part of the U-shaped frame (91). The lower end of the slider guide rod (94) is fixedly connected to the limiting slider (92). A limiting spring (95) is connected between the upper end of the limiting slider (92) and the top of the U-shaped frame (91).

10. A VOCs waste gas treatment device according to claim 1, characterized in that: The inner side of the rotating sleeve (23) is provided with a material replacement pusher (3) for pushing the adsorption component (4) on the adsorption mounting frame (25) into the feeding component (7). The material changing pusher (3) includes a motor bracket (31) fixedly installed on the top of the processing cylinder (1). A bidirectional lead screw (33) is rotatably arranged between the motor bracket (31) and the bottom of the processing cylinder (1). A limit guide rod (34) is fixedly arranged at the lower end of the motor bracket (31). A material changing motor (32) for driving the bidirectional lead screw (33) to rotate is fixedly arranged at the upper end of the motor bracket (31). Two sets of lead screw slides (35) are threadedly connected to the bidirectional lead screw (33). The lead screw slides (35) are slidably connected to the limit guide rod (34). Pushing connecting rods (36) are rotatably connected to the side of the two sets of lead screw slides (35) facing the material changing cover (5). Pushing sliders (37) are rotatably connected to the two sets of pushing connecting rods (36). A limit connecting rod is slidably connected to the pushing slider (37). The limit connecting rod is fixedly connected to the limit guide rod (34). The side wall of the rotating sleeve (23) is provided with a plurality of sleeve holes (231) through which the push slider (37) passes. The number and position of the sleeve holes (231) correspond to the adsorption mounting bracket (25).

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