A waste gas treatment device for pressure-sensitive adhesive production

Abstract

The utility model relates to waste gas treatment device technical field, specifically is a kind of waste gas treatment device for pressure-sensitive adhesive production, including purification device, two placement frame 5 are rotatably connected on purification device, placement frame 5 is fixed by limiting structure, stirring structure is further equipped on purification device, the stirring rod of stirring structure is rotatably connected with placement frame 5, by the stirring rod rotation, make stirring rod to carry out stirring to the activated carbon in placement frame 5, can effectively prevent its local area adsorption saturation, active carbon can be contacted with waste gas simultaneously, continuously renewing adsorption surface, improve adsorption efficiency, stirring can also shake off the dust accumulated on the surface of activated carbon, avoid pore blockage, keep its adsorption activity.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste gas treatment devices, specifically a waste gas treatment device for pressure-sensitive adhesive production. Background Technology

[0002] Pressure-sensitive adhesives are widely used in packaging, electronics, medical, and many other fields because they can achieve a strong bond with the substrate simply by applying pressure. Their production process involves the mixing and reaction of various organic raw materials, inevitably producing waste gas containing pollutants such as volatile organic compounds (VOCs). To meet environmental emission requirements, this waste gas usually needs to be treated by specialized purification equipment, with the adsorption properties of activated carbon being a common method for removing pollutants.

[0003] However, in existing technologies, after the waste gas enters the purification device, the contact between the waste gas and the activated carbon adsorption bed is uneven due to the airflow distribution characteristics and the limitations of the device's internal structure. This causes some areas of activated carbon to reach adsorption saturation prematurely (i.e., "local saturation") due to continuous exposure to high-concentration waste gas flow, while the adsorption capacity of activated carbon in other areas is not fully utilized. This uneven consumption of adsorption capacity directly leads to a decrease in overall adsorption efficiency, a shortened activated carbon replacement cycle, and a significant increase in operating costs.

[0004] Therefore, it is necessary to solve how to effectively improve the uniformity of contact between waste gas and activated carbon without relying on frequent manual intervention and adjustment, overcome the phenomenon of local saturation, thereby maximizing the overall adsorption efficiency and service life of activated carbon, and achieving optimized treatment effect and reduced operating cost. Utility Model Content

[0005] Based on this, this solution provides a waste gas treatment device for pressure-sensitive adhesive production. The stirring shaft drives the stirring rod to rotate, which stirs the activated carbon in the placement frame. This effectively prevents local adsorption saturation, allows the activated carbon to fully contact the waste gas, continuously renews the adsorption surface, improves adsorption efficiency, and maintains its adsorption activity.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A waste gas treatment device for pressure-sensitive adhesive production includes a purification device. Two placement frames are rotatably connected to the purification device, and a placement net is installed on each placement frame. The purification device is equipped with a stirring structure, which includes a mounting plate. The mounting plate is fixedly connected inside the purification device, and a stirring shaft is rotatably connected to the mounting plate. The stirring shaft is rotatably connected to the placement frames, and a stirring rod is fixedly connected to the stirring shaft. The placement frames and the purification device are fixed together by a limiting structure.

[0008] Optionally, in one embodiment of the present invention, a connecting shaft is rotatably connected to the mounting plate, and a gear is fixedly connected to the connecting shaft.

[0009] Optionally, in one embodiment of the present invention, a gear ring is fixedly connected to the stirring shaft, and the gear meshes with the gear ring.

[0010] Optionally, in one embodiment of the present invention, a motor is mounted on the mounting plate, and the connecting shaft is fixedly connected to the output shaft of the motor.

[0011] Optionally, in one embodiment of the present invention, the placement frame is used in conjunction with the stirring shaft through a driving structure. The driving structure includes a spline ring, two spline rings are fixedly connected to the stirring shaft, four slide rods are slidably connected to the stirring shaft, and a driving ring is fixedly connected between every two slide rods. The driving ring is provided with a spline groove.

[0012] Optionally, in one embodiment of the present invention, a sliding plate is slidably connected inside the stirring shaft, and the sliding rod is fixedly connected to the sliding plate.

[0013] Optionally, in one embodiment of the present invention, a fixed ring is fixedly connected to the slide plate, an adjusting ring is rotatably connected to the fixed ring, a connecting rod is fixedly connected to the adjusting ring, a hydraulic rod is mounted on the mounting plate, the connecting rod is fixedly connected to the telescopic end of the hydraulic rod, a guide plate is fixedly connected to the connecting rod, and the guide plate is slidably connected to the mounting plate.

[0014] Optionally, in one embodiment of the present invention, the limiting structure includes a limiting shaft, two limiting shafts are slidably connected to the purification device, and a plurality of limiting holes are provided on the placement frame. The plurality of limiting holes are arranged in a circular array about the center of the placement frame, and the two limiting shafts are respectively engaged with one of the limiting holes on the two placement frames.

[0015] Optionally, in one embodiment of the present invention, a guide rod is fixedly connected to the limiting shaft, the guide rod is slidably connected to the purification device, a pull plate is rotatably connected to the limiting shaft, a stop block is fixedly connected to the purification device, the pull plate is slidably connected to the stop block, a fixing block is fixedly connected to the limiting shaft, and a tension spring is fixedly connected between the fixing block and the purification device.

[0016] Optionally, in one embodiment of the present invention, the purification device is provided with an air inlet at the bottom, an exhaust outlet at the top, and two maintenance doors are installed on the purification device.

[0017] Compared with the prior art, the waste gas treatment device for pressure-sensitive adhesive production provided by this utility model has the following characteristics:

[0018] Integrating a stirring structure, a driving structure, and a limiting structure, this device continuously agitates the activated carbon during adsorption and purification. The motor-driven stirring shaft rotates the stirring rod, constantly renewing the adsorption surface, shaking off dust to maintain activity, and promoting uniform gas flow. This prevents localized saturation of the activated carbon, improving its utilization rate and overall adsorption efficiency. When activated carbon replacement is needed, a hydraulic drive switches the spline ring and spline groove, seamlessly converting the rotational power of the stirring shaft into the rotation of the placement frame. This allows the frame to precisely rotate to the maintenance door position, making activated carbon replacement more convenient and eliminating the need for workers to enter the device. The entire process is highly automated, solving the problems of rapid localized saturation, difficult and time-consuming activated carbon replacement, and high labor costs associated with traditional fixed-bed activated carbon adsorption devices. While ensuring effective gas purification, it also reduces operating and maintenance costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure between the mounting plate and the purification device in Embodiment 1 of this utility model;

[0022] Figure 3 for Figure 2 The diagram shows an enlarged view of the structure of region A.

[0023] Figure 4 for Figure 2 The diagram shows an enlarged view of the structure of region B.

[0024] Figure 5 This is a schematic diagram of the connection structure between the placement frame and the purification device in Embodiment 1 of this utility model;

[0025] Figure 6 for Figure 5 The diagram shows an enlarged view of the C region structure.

[0026] Figure 7 This is a schematic diagram of the connection structure between the placement net and the placement frame in Embodiment 1 of this utility model;

[0027] Figure 8 for Figure 7 The diagram shows an enlarged view of the structure of region D.

[0028] Reference numerals in the attached drawings: 1. Purification device; 2. Stirring structure; 201. Mounting plate; 202. Stirring shaft; 203. Stirring rod; 204. Gear ring; 205. Connecting shaft; 206. Gear; 207. Motor; 3. Drive structure; 3. Spline ring; 301. Slide rod; 302. Drive ring; 303. Slide plate; 304. Fixing ring; 305. Adjusting ring; 306. Connecting rod; 307. Hydraulic rod; 308. Guide plate; 309. Limiting structure; 4. Limiting shaft; 401. Limiting hole; 402. Pull plate; 403. Stop block; 404. Fixing block; 405. Tension spring; 406. Guide rod; 407. Placement frame; 5. Placement net; 6. Air inlet; 7. Exhaust outlet; 8. Inspection door; 9. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0030] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar regional components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] Example 1

[0032] To ensure that activated carbon fully adsorbs waste gas and maximizes adsorption efficiency, while reducing operating costs, a waste gas treatment device with a movable activated carbon was designed. The specific scheme is as follows:

[0033] like Figure 1-8 As shown, a waste gas treatment device for pressure-sensitive adhesive production includes a purification device 1. Two placement frames 5 are rotatably connected to the purification device 1, and a placement net 6 is installed on the placement frames 5. The purification device 1 is provided with a stirring structure 2, which includes a mounting plate 201. The mounting plate 201 is fixedly connected inside the purification device 1, and a stirring shaft 202 is rotatably connected to the mounting plate 201. The stirring shaft 202 is rotatably connected to the placement frames 5, and a stirring rod 203 is fixedly connected to the stirring shaft 202. The placement frames 5 and the purification device 1 are fixed together by a limiting structure 4.

[0034] A connecting shaft 205 is rotatably connected to the mounting plate 201, and a gear 206 is fixedly connected to the connecting shaft 205. A gear ring 204 is fixedly connected to the stirring shaft 202. The gear 206 meshes with the gear ring 204. A motor 207 is mounted on the mounting plate 201. When the motor 207 is started, the output shaft of the motor 207 rotates, driving the connecting shaft 205 to rotate. The rotation of the connecting shaft 205 drives the gear 206 to rotate, which in turn drives the gear ring 204 to rotate. The rotation of the gear ring 204 then drives the stirring shaft 202 to rotate. The rotation of the stirring shaft 202... The stirring rod 203 is rotated to stir the activated carbon in the placement frame 5. Stirring the activated carbon can effectively prevent local adsorption saturation, while allowing the activated carbon to fully contact the waste gas, continuously renew the adsorption surface, and improve adsorption efficiency. Stirring can also shake off the dust accumulated on the surface of the activated carbon, avoid pore blockage, maintain its adsorption activity, and make the waste gas flow more evenly in the activated carbon layer, reduce airflow obstruction, and ensure that the waste gas is thoroughly and efficiently purified. The connecting shaft 205 is fixedly connected to the output shaft of the motor 207.

[0035] The placement frame 5 is used in conjunction with the stirring shaft 202 via the drive structure 3. The drive structure 3 includes a spline ring 301. Two spline rings 301 are fixedly connected to the stirring shaft 202. Four slide rods 302 are slidably connected to the stirring shaft 202. A drive ring 303 is fixedly connected between every two slide rods 302. The drive ring 303 has a spline groove. A slide plate 304 is slidably connected inside the stirring shaft 202. The slide rods 302 are fixedly connected to the slide plate 304. A fixing ring 305 is fixedly connected to the slide plate 304. An adjusting ring 306 is rotatably connected to the fixing ring 305. A connecting rod 307 is fixedly connected to the adjusting ring 306. A hydraulic rod 308 is installed on the mounting plate 201. The connecting rod 307 is fixedly connected to the telescopic end of the hydraulic rod 308. When it is necessary to replace the activated carbon, the hydraulic rod 308 can be activated. When the telescopic end of 08 retracts, it will drive the connecting rod 307 to move downward. The connecting rod 307 will drive the guide plate 309 to slide against the mounting plate 201. The guide plate 309 makes the movement of the connecting rod 307 more stable. The connecting rod 307 will drive the fixed ring 305 and the slide plate 304 to move downward through the adjusting ring 306. When the slide plate 304 moves downward, it will drive the spline groove on the drive ring 303 to engage with the spline ring 301 through the slide rod 302. At this time, when the stirring shaft 202 rotates, it can drive the spline ring 301 to rotate through the drive ring 303. The spline ring 301 will drive the placement frame 5 to rotate, so that the placement frame 5 will rotate the activated carbon inside to the inspection door 9 for replacement, which improves the flexibility of the replacement operation. The guide plate 309 is fixedly connected to the connecting rod 307, and the guide plate 309 is slidably connected to the mounting plate 201.

[0036] The limiting structure 4 includes a limiting shaft 401. Two limiting shafts 401 are slidably connected to the purification device 1. The placement frame 5 is provided with multiple limiting holes 402, which are arranged in a circular array about the center of the placement frame 5. The two limiting shafts 401 are respectively engaged with one of the limiting holes 402 on the two placement frames 5, so that the limiting shaft 401 is engaged with the placement frame 5 under the action of the tension spring 406, which improves the stability and prevents the placement frame 5 from rotating when the stirring shaft 202 rotates. A guide rod 407 is fixedly connected to the limiting shaft 401 and is slidably connected to the purification device 1. A pull plate 403 is rotatably connected to the limiting shaft 401 and is fixedly connected to the purification device 1. There is a stop block 404, and the pull plate 403 is slidably connected to the stop block 404. At this time, by pulling the pull plate 403, the pull plate 403 will drive the limit shaft 401 to move and no longer engage with the limit hole 402. At the same time, the fixing block 405 causes the tension spring 406 to extend. When the pull plate 403 moves to a certain position, the pull plate 403 is rotated so that the pull plate 403 is blocked by the stop block 404, preventing it from sliding under the action of the tension spring 406. The fixing block 405 is fixedly connected to the limit shaft 401, and the tension spring 406 is fixedly connected between the fixing block 405 and the purification device 1. The bottom of the purification device 1 is provided with an air inlet 7, the top of the purification device 1 is provided with an exhaust port 8, and two maintenance doors 9 are installed on the purification device 1.

[0037] Working principle:

[0038] Production waste gas enters the purification device 1 through the inlet 7 via an external pipe. Columnar activated carbon is placed on the mesh 6. The activated carbon purifies the waste gas, ensuring it meets emission standards. After a period of use, the motor 207 can be started to rotate the stirring shaft 202, which in turn rotates the stirring rod 203, stirring the activated carbon in the placement frame 5. Stirring the activated carbon effectively prevents localized adsorption saturation and allows it to fully contact the waste gas, continuously renewing the adsorption surface and improving adsorption efficiency. Stirring also shakes off dust accumulated on the surface of the activated carbon, preventing pore blockage and maintaining its adsorption activity. Furthermore, stirring allows the waste gas to flow more evenly within the activated carbon layer, reducing airflow obstruction and ensuring comprehensive and efficient purification of the waste gas.

[0039] When activated carbon needs to be replaced, the hydraulic rod 308 is activated. The hydraulic rod 308 retracts, causing the connecting rod 307 to move downwards. The connecting rod 307 causes the guide plate 309 to slide against the mounting plate 201. The connecting rod 307, through the adjusting ring 306, causes the fixing ring 305 and the sliding plate 304 to move downwards. When the sliding plate 304 moves downwards, it causes the spline groove on the drive ring 303 to engage with the spline ring 301 through the sliding rod 302. At this time, pulling the pull plate 403 causes the limit shaft 401 to move. The movement stops engaging with the limiting hole 402. Simultaneously, the fixing block 405 extends the tension spring 406. When the pull plate 403 moves to a certain position, it rotates to be blocked by the stop block 404, preventing it from sliding under the action of the tension spring 406. At this time, when the stirring shaft 202 rotates, it can drive the spline ring 301 to rotate through the drive ring 303, thereby driving the placement frame 5 to rotate. This allows the placement frame 5 to rotate the activated carbon inside to the inspection door 9 for replacement, improving the flexibility of the replacement operation.

[0040] After the replacement is completed, the limiting shaft 401 is engaged with the placement frame 5 under the action of the tension spring 406, which improves stability and prevents the placement frame 5 from rotating when the stirring shaft 202 rotates. After engagement, the drive ring 303 no longer cooperates with the fixed ring 305, and the rotation of the stirring shaft 202 will not affect the placement frame 5.

[0041] The waste gas treatment device in this solution integrates a stirring structure 2, a driving structure 3, and a limiting structure 4. During adsorption and purification, the motor 207 drives the stirring rod 203 to continuously agitate the activated carbon. This continuously refreshes the adsorption surface, shakes off dust to maintain activity, promotes uniform flow of waste gas, prevents localized saturation of the activated carbon, and improves the utilization rate of activated carbon and the overall adsorption efficiency. When it is necessary to replace the activated carbon, the hydraulic rod 308 switches the spline ring and spline groove to engage, converting the rotational power of the stirring shaft 202 into the rotation of the placement frame 5, allowing it to rotate precisely to the position of the maintenance door 9. This makes activated carbon replacement more convenient, eliminating the need for workers to enter the device. The entire process is highly automated, solving the problems of rapid localized saturation, difficult and time-consuming activated carbon replacement, and high labor costs associated with traditional fixed activated carbon adsorption devices. While ensuring the purification effect of waste gas, it also reduces operating and maintenance costs.

[0042] Example 2

[0043] In this embodiment, the structure of the exhaust gas treatment device is basically the same as that of Embodiment 1. The difference is that the hydraulic rod 308 is removed and replaced by a bidirectional electromagnetic clutch. The motor 207 is connected to the drive shaft of the placement frame 5 through the bidirectional electromagnetic clutch. When the clutch is disengaged, the linkage between 202 and the placement frame 5 is broken, and the motor 207 only drives 202 to rotate. When the clutch is closed, the power of the motor 207 is switched to the rotation shaft of the placement frame 5, which drives the placement frame 5 to rotate to the maintenance door position. This simplifies the structure, reduces the equipment failure rate, and can be switched with one button via the circuit.

[0044] A conical guide hood is installed at the bottom of the placement frame 5 to force the exhaust gas to diffuse from the center to the surrounding area, eliminate the blind zone of stirring, enhance the uniformity of exhaust gas distribution, and reduce the local adsorption saturation of activated carbon.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A waste gas treatment device for pressure sensitive adhesive production, comprising a purification device, characterized in that: The purification device has two rotatably connected placement frames, each with a placement net installed on it. The purification device is equipped with a stirring structure, which includes a mounting plate. The mounting plate is fixedly connected inside the purification device, and a stirring shaft is rotatably connected to the mounting plate. The stirring shaft is rotatably connected to the placement frames, and a stirring rod is fixedly connected to the stirring shaft. The placement frames and the purification device are fixed together by a limiting structure.

2. The waste gas treatment device for pressure-sensitive adhesive production according to claim 1, characterized in that: A connecting shaft is rotatably connected to the mounting plate, and a gear is fixedly connected to the connecting shaft.

3. The waste gas treatment device for pressure sensitive adhesive production according to claim 2, characterized in that: A gear ring is fixedly connected to the stirring shaft, and the gear meshes with the gear ring.

4. The waste gas treatment device for pressure-sensitive adhesive production according to claim 3, characterized in that: A motor is mounted on the mounting plate, and the connecting shaft is fixedly connected to the output shaft of the motor.

5. The waste gas treatment device for pressure-sensitive adhesive production according to claim 1, characterized in that: The placement frame is used in conjunction with the stirring shaft via a drive structure. The drive structure includes spline rings, two spline rings are fixedly connected to the stirring shaft, four slide rods are slidably connected to the stirring shaft, and a drive ring is fixedly connected between every two slide rods. The drive ring is provided with a spline groove.

6. The waste gas treatment device for pressure-sensitive adhesive production according to claim 5, characterized in that: A sliding plate is slidably connected inside the stirring shaft, and the sliding rod is fixedly connected to the sliding plate.

7. The waste gas treatment device for pressure-sensitive adhesive production according to claim 6, characterized in that: A fixed ring is fixedly connected to the slide plate, an adjusting ring is rotatably connected to the fixed ring, a connecting rod is fixedly connected to the adjusting ring, a hydraulic rod is mounted on the mounting plate, the connecting rod is fixedly connected to the telescopic end of the hydraulic rod, a guide plate is fixedly connected to the connecting rod, and the guide plate is slidably connected to the mounting plate.

8. The waste gas treatment device for pressure-sensitive adhesive production according to claim 1, characterized in that: The limiting structure includes a limiting shaft, and two limiting shafts are slidably connected to the purification device. The placement frame is provided with multiple limiting holes, which are arranged in a circular array about the center of the placement frame. The two limiting shafts are respectively engaged with one of the limiting holes on the two placement frames.

9. The waste gas treatment device for pressure-sensitive adhesive production according to claim 8, characterized in that: A guide rod is fixedly connected to the limiting shaft, and the guide rod is slidably connected to the purification device. A pull plate is rotatably connected to the limiting shaft. A stop block is fixedly connected to the purification device, and the pull plate is slidably connected to the stop block. A fixing block is fixedly connected to the limiting shaft, and a tension spring is fixedly connected between the fixing block and the purification device.

10. The waste gas treatment device for pressure-sensitive adhesive production according to claim 9, characterized in that: The purification device has an air inlet at the bottom and an exhaust outlet at the top, and two maintenance doors are installed on the purification device.

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