A catalytic combustion treatment device for PA6 plastic processing waste gas

Abstract

The utility model relates to the field of environmental protection equipment especially, a kind of catalytic combustion treatment device of PA6 plastics processing waste gas.The catalytic combustion treatment device of PA6 plastics processing waste gas includes filter box body, first filter plate, cleaning tank, transmission assembly, cleaning roller and cleaning component, one side of filter box body is equipped with adsorption equipment and combustion equipment, first filter plate is symmetrically installed in the inside of filter box body.The catalytic combustion treatment device of PA6 plastics processing waste gas provided by the utility model drives first filter plate and second filter plate to move alternately by transmission assembly, when the particulate matter of first filter plate surface accumulation is too much, filter efficiency reduces, can be timely with second filter plate position alternation, ensure that filtration work is uninterrupted, always have filter plate in working condition, maintain the continuity and stability of waste gas filtration, avoid waste gas treatment interruption due to filter plate cleaning, ensure that waste gas treatment device continues efficient operation.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment, and in particular to a catalytic combustion treatment device for PA6 plastic processing waste gas. Background Technology

[0002] The processing of PA6 plastics generates a large amount of waste gas, which contains a variety of harmful substances, such as volatile organic compounds (VOCs) and particulate matter. If these gases are released directly into the atmosphere without effective treatment, they will not only cause serious environmental pollution and affect air quality, but may also harm human health. Therefore, it is crucial to properly treat the waste gas from PA6 plastic processing.

[0003] Currently, the treatment of PA6 plastic processing waste gas usually adopts catalytic combustion treatment device. Its treatment process generally includes stages such as pretreatment, adsorption unit, catalytic combustion unit and heat exchange and circulation system, and finally the waste gas that meets the emission standards is discharged to the outside.

[0004] However, existing treatment equipment has significant drawbacks in the filtration stage of pretreatment. As the filtration of exhaust gas continues, a large amount of particulate matter is trapped on the surface of the filter plate. To ensure stable filtration function, workers need to clean the filter plate regularly. However, the current cleaning method is cumbersome. Workers need to spend a lot of time removing the filter plate from the equipment, cleaning it, and then reinstalling it. The whole process is not only time-consuming and labor-intensive, which seriously affects the efficiency of exhaust gas treatment and increases labor costs, but also, during the disassembly and cleaning process, workers are very likely to inhale the particulate matter trapped by the filter plate. These particulate matter may contain harmful substances, and long-term exposure can cause irreversible damage to the workers' health.

[0005] Therefore, it is necessary to provide a new catalytic combustion treatment device for PA6 plastic processing waste gas to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a catalytic combustion treatment device for PA6 plastic processing waste gas.

[0007] The catalytic combustion treatment device for PA6 plastic processing waste gas provided by this utility model includes: a filter box body, a first filter plate, a cleaning box, a transmission assembly, a cleaning roller, and a cleaning assembly. An adsorption device and a combustion device are installed on one side of the filter box body. The first filter plate is symmetrically installed inside the filter box body. A cleaning box is installed above the filter box body. A second filter plate is symmetrically installed inside the cleaning box. A transmission assembly is installed between the filter box body and the first filter plate. The transmission assembly drives the first filter plate and the second filter plate to move alternately to intercept particulate matter in the waste gas. A cleaning roller is symmetrically installed inside the cleaning box. A cleaning assembly is installed between the cleaning box and the cleaning roller. The cleaning assembly drives the cleaning roller to move to clean the particulate matter intercepted on the surfaces of the first filter plate and the second filter plate.

[0008] Preferably, the transmission assembly includes: a motor, a gear, rack one and rack two. The motor is symmetrically fixedly connected to the side wall of the filter box body. The output end of the motor is fixedly connected to the gear. Rack one is meshed with one side of the gear and rack two is meshed with the other side. Rack one is fixedly connected to the side wall of the first filter plate and rack two is fixedly connected to the side wall of the second filter plate.

[0009] Preferably, the top of the filter box body is symmetrically provided with mounting grooves, and the inner wall of each mounting groove is symmetrically fixedly connected with a spring. The other end of the spring is fixedly connected with a closing plate, and the closing plate is slidably connected to the inner wall of the corresponding mounting groove.

[0010] Preferably, the side of the closing plate away from the spring is designed with an inclined surface, and the upper and lower ends of the first and second filter plates are also designed with inclined surfaces, which match the inclined ends of the closing plate.

[0011] Preferably, the cleaning assembly includes: an electric push rod, a toothed rod, and a toothed frame. The top of the cleaning box is symmetrically and slidably connected to the electric push rod. The output end of the electric push rod is fixedly connected to a connecting frame. The inner wall of the connecting frame is rotatably connected to the cleaning roller. Toothed rods are fixedly connected to the shaft centers at both ends of the cleaning roller. Mounting seats are symmetrically and fixedly connected to the top of the filter box body. Toothed frames are fixedly connected to both ends of the mounting seats. The interior of the toothed frame meshes with the corresponding toothed rod.

[0012] Preferably, each connecting frame has an arc-shaped dust suction nozzle fixedly connected to its center, and a suction fan is symmetrically installed on one side of the filter box body. The input end of the suction fan is connected to the corresponding arc-shaped dust suction nozzle through a suction pipe, and its input end is connected to a collection box through a suction pipe.

[0013] Preferably, each mounting base has a top rod symmetrically fixedly connected to the side near the first filter plate. The end of the top rod is designed with a bevel. Each mounting base has a spring symmetrically fixedly connected to the other end. The other end of each spring is fixedly connected to the inner wall of the cleaning box.

[0014] Compared with related technologies, the catalytic combustion treatment device for PA6 plastic processing waste gas provided by this utility model has the following beneficial effects:

[0015] The transmission assembly drives the first and second filter plates to move alternately. When too many particles accumulate on the surface of the first filter plate and the filtration efficiency decreases, the first filter plate can be replaced by the second filter plate in time to ensure that the filtration work is uninterrupted and that there is always a filter plate in working condition. This maintains the continuity and stability of the exhaust gas filtration, avoids the interruption of exhaust gas treatment due to filter plate cleaning, and ensures the continuous and efficient operation of the exhaust gas treatment device.

[0016] Through the design of the cleaning components, the electric push rod pushes the cleaning roller down, and with the cooperation of the toothed rod and toothed frame, the cleaning roller rotates around its axis to clean the surface of the filter plate. The entire cleaning process is highly automated, reducing human intervention and the errors and risks caused by manual operation. At the same time, it reduces the direct contact between workers and the filter plate intercepting particles, reducing the risk of workers inhaling harmful particles and effectively protecting the health of workers.

[0017] During the cleaning process, the arc-shaped dust suction nozzle works in conjunction with the suction fan to promptly remove the particles cleaned by the cleaning roller and collect them in the collection box. This prevents the particles from re-entering the exhaust gas, ensuring the thoroughness of the filter plate cleaning, improving the cleaning effect of the filter plate, and extending the service life of the filter plate.

[0018] By coordinating the transmission and cleaning components, the automatic alternation and cleaning of the filter plates are achieved, greatly saving labor and time costs and improving the efficiency of waste gas treatment. Attached Figure Description

[0019] Figure 1 A schematic diagram of the catalytic combustion treatment device for PA6 plastic processing waste gas provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the structure of the filter box body.

[0021] Figure 3 for Figure 2 A schematic diagram of a partial cross-section of the filter box body shown;

[0022] Figure 4 for Figure 3 The diagram shows the structure at point A.

[0023] Figure 5 for Figure 2 The diagram shows the structure of the cleaning components.

[0024] Figure 6 for Figure 5 The diagram shows the structure at point B.

[0025] Figure 7 for Figure 5 The diagram shows the structure at point C.

[0026] The following are the labels in the diagram: 1. Filter box body; 2. Adsorption device; 3. Combustion device; 4. First filter plate; 5. Cleaning box; 6. Second filter plate; 7. Cleaning roller; 8. Motor; 9. Gear; 10. Rack 1; 11. Rack 2; 12. Spring 1; 13. Closing plate; 14. Electric push rod; 15. Gear rack; 16. Gear frame; 17. Connecting frame; 18. Mounting base; 19. Arc-shaped dust suction nozzle; 20. Fan; 21. Collection box; 22. Top rod; 23. Spring 2. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] Please see Figures 1 to 7A catalytic combustion treatment device for PA6 plastic processing waste gas includes: a filter box body 1, a first filter plate 4, a cleaning box 5, a transmission assembly, a cleaning roller 7, and a cleaning assembly. An adsorption device 2 and a combustion device 3 are installed on one side of the filter box body 1. The first filter plate 4 is symmetrically installed inside the filter box body 1. The cleaning box 5 is installed above the filter box body 1. The second filter plate 6 is symmetrically installed inside the cleaning box 5. A transmission assembly is installed between the filter box body 1 and the first filter plate 4, driving the first filter plate 4 and the second filter plate 6 to move alternately to intercept particulate matter in the waste gas. The cleaning roller 7 is symmetrically installed inside the cleaning box 5. The cleaning assembly is installed between the cleaning box 5 and the cleaning roller 7, driving the cleaning roller 7 to move to clean the first filter plate 4 and the second filter plate 6. The transmission components for surface-intercepted particulate matter include: a motor 8, a gear 9, a rack 10, and a rack 11. The motor 8 is symmetrically fixedly connected to the side wall of the filter box body 1. The output end of the motor 8 is fixedly connected to the gear 9. One side of the gear 9 is meshed with the rack 10, and the other side is meshed with the rack 11. The rack 10 is fixedly connected to the side wall of the first filter plate 4, and the rack 11 is fixedly connected to the side wall of the second filter plate 6. The top of the filter box body 1 is symmetrically provided with mounting grooves. The inner wall of each mounting groove is symmetrically fixedly connected with a spring 12. The other end of the spring 12 is fixedly connected to a closing plate 13. The closing plate 13 is slidably connected to the inner wall of the corresponding mounting groove. The side of the closing plate 13 away from the spring 12 is designed with an inclined surface. The upper and lower ends of the first filter plate 4 and the second filter plate 6 are both designed with inclined surfaces, and they match the inclined ends of the closing plate 13.

[0030] It should be noted that the catalytic combustion treatment device includes a pretreatment unit, an absorption unit, a catalytic combustion unit, and a heat exchange and circulation system. The generated exhaust gas first passes through the water mist dust suppression device set at the front end of the filter box body 1, then enters the filter box body 1, and then enters the adsorption device 2, the combustion device 3, and the heat exchange system, and finally the gas that meets the emission standards is discharged.

[0031] Please see Figures 5 to 7The cleaning components include: an electric push rod 14, a toothed rod 15, and a toothed frame 16. The top of the cleaning box 5 is symmetrically and slidably connected to the electric push rod 14. A connecting frame 17 is fixedly connected to the output end of the electric push rod 14. The inner wall of the connecting frame 17 is rotatably connected to the cleaning roller 7. Toothed rods 15 are fixedly connected to the shaft centers at both ends of the cleaning roller 7. A mounting base 18 is symmetrically and fixedly connected to the top of the filter box body 1. Toothed frames 16 are fixedly connected to both ends of the mounting base 18. The interior of the toothed frame 16 meshes with the corresponding toothed rod 15. The connecting frame 17... Arc-shaped dust suction nozzles 19 are fixedly connected to the middle of each filter box body 1. A suction fan 20 is symmetrically installed on one side of the filter box body 1. The input end of the suction fan 20 is connected to the corresponding arc-shaped dust suction nozzle 19 through a dust suction pipe, and its input end is connected to a collection box 21 through a dust suction pipe. A top rod 22 is symmetrically fixedly connected to the side of the mounting base 18 near the first filter plate 4. The end of the top rod 22 is designed with a bevel. A second spring 23 is symmetrically fixedly connected to the other end of the mounting base 18. The other end of the second spring 23 is fixedly connected to the inner wall of the cleaning box 5.

[0032] It should be noted that: in the initial state, the cleaning roller 7 is in contact with the surface of the second filter plate 6, and the top of the cleaning box 5 is symmetrically provided with sliding grooves. The output end of the electric push rod 14 passes through the corresponding sliding groove and is fixedly connected to the connecting frame 17. When the first filter plate 4 rises and pushes the top rod 22 to move the mounting base 18, the electric push rod 14, the connecting frame 17, the arc-shaped dust suction nozzle 19 and the cleaning roller 7 move synchronously. The middle part of the connecting frame 17 is fixedly connected to the arc-shaped dust suction nozzle 19, and both ends of the connecting frame 17 are slidably connected to the vertical slide rail fixedly connected to the mounting base 18.

[0033] The working principle of the catalytic combustion treatment device for PA6 plastic processing waste gas provided by this utility model is as follows:

[0034] 1. Exhaust gas filtration stage

[0035] After the exhaust gas enters the filter box body 1, it first passes through the first filter plate 4 symmetrically arranged inside the filter box body 1; the first filter plate 4 can intercept particulate matter in the exhaust gas, so that the exhaust gas is initially purified and the burden on the subsequent treatment unit is reduced.

[0036] 2. Filter plate alternation stage

[0037] As the exhaust gas filtration continues, more and more particulate matter accumulates on the surface of the first filter plate 4, and the filtration efficiency gradually decreases. At this time, the first filter plate 4 needs to be cleaned. The staff regularly starts the motor 8 near the air inlet of the filter box body 1. The motor 8 drives the gear 9 to rotate. Since one side of the gear 9 is meshed with a rack 10 and the other side is meshed with a rack 2 11, and the rack 10 is fixedly connected to the side wall of the first filter plate 4 and the rack 2 11 is fixedly connected to the side wall of the second filter plate 6, the rotation of the gear 9 will cause the rack 10 to move upward and the rack 2 11 to move downward, thereby driving the first filter plate 4 to rise into the cleaning box 5 and the second filter plate 6 to fall into the filter box body 1.

[0038] During the process of the first filter plate 4 rising and the second filter plate 6 falling, the closing plate 13 inside the mounting groove opened at the top of the filter box body 1 plays a role. The side of the closing plate 13 away from the spring-12 and the upper and lower ends of the first filter plate 4 and the second filter plate 6 are all designed with slopes and match each other. When the first filter plate 4 rises and the second filter plate 6 falls, the slopes at their ends will squeeze the slopes of the corresponding closing plate 13, causing the closing plate 13 to slide inside the mounting groove and compress the spring-12, thereby opening the mounting groove and ensuring that the first filter plate 4 and the second filter plate 6 can pass through smoothly. After the first filter plate 4 and the second filter plate 6 have completed the position alternation, the spring-12 releases its elastic force, pushes the closing plate 13 to move in the opposite direction, and closes it again to prevent the particulate matter in the exhaust gas from flowing out.

[0039] 3. Cleaning roller 7 position adjustment stage

[0040] During the upward movement of the first filter plate 4, it will also compress the top rod 22 fixed to the side wall of the mounting base 18 which is slidably installed on the top of the filter box body 1; in the initial state, the cleaning roller 7 set on the top of the mounting base 18 is in contact with the second filter plate 6; the end of the top rod 22 is designed with a slope, and the upward movement of the first filter plate 4 will push the mounting base 18 and the cleaning component set above it to move, and compress the second spring 23, so that the cleaning roller 7 moves synchronously and contacts the first filter plate 4 to prepare for subsequent cleaning;

[0041] 4. First filter plate cleaning stage

[0042] When the corresponding electric push rod 14 is activated, the connecting frame 17, which is fixedly connected to the output end of the electric push rod 14, moves downward, causing the cleaning roller 7, which is rotatably connected inside, to descend. A toothed rod 15 is fixed at the axis at both ends of the cleaning roller 7. The toothed rod 15 is placed inside the toothed frame 16, which is fixed at both ends of the mounting base 18, and is meshed with it. While the electric push rod 14 pushes the cleaning roller 7 to descend, the cleaning roller 7 rotates around its axis with the cooperation of the toothed rod 15 and the toothed frame 16, cleaning the surface of the first filter plate 4 and removing the particles intercepted on the surface of the first filter plate 4.

[0043] At the same time, the suction fan 20 installed on one side of the filter box body 1 is started; the input end of the suction fan 20 is connected to the corresponding arc-shaped suction nozzle 19 through the suction pipe, and its input end is connected to the collection box 21 through the suction pipe; the arc-shaped suction nozzle 19 sucks away the particles cleaned by the cleaning roller 7 and finally collects them in the collection box 21 to prevent the particles from re-entering the exhaust gas.

[0044] 5. Cleaning and Resetting Phase

[0045] After cleaning is complete, turn off the suction fan 20 and the electric push rod 14; at this time, the cleaning roller 7 stops rotating and resets, waiting for the next cleaning operation;

[0046] 6. Second filter plate cleaning stage

[0047] When the second filter plate 6 needs to be cleaned, the motor 8 is reversed, causing the cleaned first filter plate 4 to descend and the second filter plate 6 to rise, completing the position alternation. When the first filter plate 4 has completely descended into the filter box body 1, the spring 23 releases its elastic force, pushing the mounting base 18 and the cleaning components closer to the second filter plate 6, so that the cleaning roller 7 contacts the second filter plate 6. The electric push rod 14 and the suction fan 20 are started again, and the second filter plate 6 is cleaned according to the same process as cleaning the first filter plate 4.

[0048] 7. Repeated cleaning stage

[0049] When it is necessary to clean the first filter plate 4 and the second filter plate 6, which are far from the air inlet inside the filter box body 1, the above process can be repeated to ensure that all filter plates can be cleaned in a timely and effective manner, thus ensuring the exhaust gas filtration effect and the normal operation of the treatment device.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A catalytic combustion treatment device for PA6 plastic processing waste gas, characterized in that, include: The filter box body (1) is equipped with an adsorption device (2) and a combustion device (3) on one side. The first filter plate (4) is symmetrically installed inside the filter box body (1); Cleaning box (5), a cleaning box (5) is installed on the top of the filter box body (1), and a second filter plate (6) is symmetrically installed inside the cleaning box (5); A transmission assembly is installed between the filter box body (1) and the first filter plate (4). The transmission assembly drives the first filter plate (4) and the second filter plate (6) to move alternately to intercept particulate matter in the exhaust gas. Cleaning rollers (7) are symmetrically installed inside the cleaning box (5); A cleaning assembly is installed between the cleaning box (5) and the cleaning roller (7). The cleaning assembly drives the cleaning roller (7) to move to clean the particles intercepted on the surfaces of the first filter plate (4) and the second filter plate (6).

2. The catalytic combustion treatment device for PA6 plastic processing waste gas according to claim 1, characterized in that, The transmission components include: a motor (8), a gear (9), a rack one (10) and a rack two (11). The motor (8) is symmetrically fixedly connected to the side wall of the filter box body (1). The output end of the motor (8) is fixedly connected to the gear (9). One side of the gear (9) is meshed with the rack one (10), and the other side is meshed with the rack two (11). The rack one (10) is fixedly connected to the side wall of the first filter plate (4), and the rack two (11) is fixedly connected to the side wall of the second filter plate (6).

3. The catalytic combustion treatment device for PA6 plastic processing waste gas according to claim 1, characterized in that, The filter box body (1) has symmetrically opened installation slots at the top. Springs (12) are symmetrically fixedly connected to the inner walls of the installation slots. A closing plate (13) is fixedly connected to the other end of the springs (12). The closing plate (13) is slidably connected to the inner wall of the corresponding installation slot.

4. The catalytic combustion treatment device for PA6 plastic processing waste gas according to claim 3, characterized in that, The side of the closed plate (13) away from the spring (12) is designed with a slope. The upper and lower ends of the first filter plate (4) and the second filter plate (6) are designed with slopes and match the slope end of the closed plate (13).

5. The catalytic combustion treatment device for PA6 plastic processing waste gas according to claim 1, characterized in that, The cleaning components include: an electric push rod (14), a toothed rod (15), and a toothed frame (16). The top of the cleaning box (5) is symmetrically slidably connected to the electric push rod (14). The output end of the electric push rod (14) is fixedly connected to the connecting frame (17). The inner wall of the connecting frame (17) is rotatably connected to the cleaning roller (7). The toothed rod (15) is fixedly connected to the shaft center at both ends of the cleaning roller (7). The top of the filter box body (1) is symmetrically fixedly connected to the mounting base (18). The toothed frame (16) is fixedly connected to both ends of the mounting base (18). The inside of the toothed frame (16) is meshed with the corresponding toothed rod (15).

6. The catalytic combustion treatment device for PA6 plastic processing waste gas according to claim 5, characterized in that, The middle part of the connecting frame (17) is fixedly connected with an arc-shaped dust suction nozzle (19), and a suction fan (20) is symmetrically installed on one side of the filter box body (1). The input end of the suction fan (20) is connected to the corresponding arc-shaped dust suction nozzle (19) through the dust suction pipe, and its input end is connected to the collection box (21) through the dust suction pipe.

7. The catalytic combustion treatment device for PA6 plastic processing waste gas according to claim 5, characterized in that, On the side of the mounting base (18) near the first filter plate (4), a top rod (22) is symmetrically fixedly connected. The end of the top rod (22) is designed with a bevel. On the other end of the mounting base (18), a spring (23) is symmetrically fixedly connected. The other end of the spring (23) is fixedly connected to the inner wall of the cleaning box (5).

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