Composite waste gas treatment device for paper-plastic-aluminum sterile packaging material

Abstract

According to the composite waste gas treatment device for the paper-plastic-aluminum sterile packaging material, when a cloth bag needs to be cleaned, a hydraulic rod can drive a transmission rod to move upwards through a transverse plate, so that a magnet adsorbs a bottom plate of the cloth bag, the cloth bag is driven to be compressed and deformed upwards, impurities adsorbed on the cloth bag are extruded in the deformation process of the cloth bag, and the cleaning effect is improved. Most of the impurities which are not stably adsorbed automatically fall off in the deformation process, and the impurities which are stably adsorbed can also loosen in the deformation process of the cloth bag. After the cloth bag is compressed and deformed upwards, the overall length of the cloth bag is reduced, at the moment, pulse type high-pressure gas is sprayed into the compressed cloth bag through the nozzle, the bottom of the cloth bag can be rapidly impacted, high-pressure gas loss is small, downward impact force borne by the cloth bag is large, a bottom plate of the cloth bag is disengaged from the magnet under impact, and the bottom of the cloth bag rapidly falls and restores. Therefore, the compressed cloth bag is quickly unfolded to form one-time extension, surface oscillation is formed, and loose impurities are shaken off.

Description

Technical Field

[0001] This application relates to the field of environmental protection technology, and in particular to a waste gas treatment device for paper-plastic-aluminum aseptic packaging materials. Background Technology

[0002] The production process of paper-plastic-aluminum aseptic packaging materials generates a large amount of waste gas, which manufacturers need to collect and centrally treat to meet environmental emission standards. This waste gas typically undergoes dry pretreatment to remove large particulate impurities, followed by multi-stage wet treatment and then biochemical treatment after cooling, until it meets emission standards.

[0003] Dry pretreatment typically employs baghouse dust collectors. By introducing waste gas into the collector, large particles fall downwards under their own weight, while smaller particles follow the gas into the filter bags. As the waste gas passes through the filter bags, the smaller particles are intercepted and adsorbed, thus achieving a pretreatment effect. However, over prolonged operation, impurities accumulate on the filter bags, reducing their gas flow and drastically decreasing filtration efficiency. At this point, high-pressure gas is repeatedly pulsed into the filter bags through the upper pulse nozzles. The high-pressure gas impacts the bags, causing the impurities to fall off.

[0004] This bag cleaning method still has significant shortcomings. Because exhaust gas generally flows from bottom to top, the amount of impurities accumulating at the bottom of the bag is much greater than at the top. Furthermore, the pulsed high-pressure gas injected from above, after effectively cleaning the top of the bag, gradually loses energy as it continues to impact downwards, resulting in limited impact energy reaching the bottom and failing to effectively complete the cleaning. Additionally, because the top is well-cleaned, the bag's breathability is enhanced, causing most of the subsequent pulsed high-pressure gas to pass through the top of the bag and escape, further reducing the amount of high-pressure gas reaching the bottom. This undoubtedly severely impacts the overall cleaning effect. Moreover, during the cleaning process, a large amount of impurities blown off the bag remain suspended around it, increasing the pressure around the bag and reducing the pressure difference between the inside and outside of the bag, further limiting the cleaning effect. Summary of the Invention

[0005] This application proposes a composite waste gas treatment device for paper-plastic-aluminum aseptic packaging materials. It features a combination of advantages: compressed bag deformation causes impurities to loosen and fall off; pulsed high-pressure airflow impacts and compresses the stacked bags, resulting in a shorter stroke and greater impact force; the pulsed high-pressure airflow impacts the bags, causing them to quickly recover downwards to shake off impurities; the bags impact the support frame downwards to further shake off impurities; the support frame reciprocates under impact, intermittently impacting the bags, causing them to receive an upward impact force; the pulsed high-pressure airflow provides downward impact force, which, combined with the upward impact force, causes the bags to vibrate and complete the cleaning; and the piston reciprocates up and down under force to extract and rapidly settle impurities. This addresses the problems of high energy loss, limited cleaning effect, and floating impurities affecting subsequent cleaning in existing baghouse dust collectors.

[0006] To achieve the above objectives, this application adopts the following technical solution: a composite waste gas treatment device for paper-plastic-aluminum aseptic packaging materials, comprising an upper filter box and a dust collection box connected below the filter box; a partition plate is provided at the top of the filter box, and evenly distributed cloth bags are provided on the partition plate, with a metal base plate at the bottom of each cloth bag; an air box with multiple connecting pipes is provided on one side of the filter box, an electrically controlled valve is provided at the top of each connecting pipe, and an air distribution pipe is provided on one side of the electrically controlled valve, extending to the top of the partition plate, with multiple nozzles at the bottom of the air distribution pipe facing the center of the top opening of each cloth bag; a fixing frame is provided at the top of the filter box, and evenly distributed hydraulic cylinders are provided at the bottom of the fixing frame, with hydraulic rods inside each hydraulic cylinder, a horizontal plate at the bottom of each hydraulic rod, and multiple sets of transmission rods at the bottom of the horizontal plate, with magnets at the bottom of each transmission rod attracting the top of the base plate; a force-bearing frame is provided at the bottom of the inner cavity of the filter box, and multiple differential pressure components are provided below the force-bearing frame.

[0007] Preferably, the filter box has an air inlet at one end and an exhaust outlet at the other end. An air inlet baffle is provided on one side of the top of the inner cavity of the filter box, facing the air inlet. A dust collection box has a waste discharge pipe with a valve at the bottom opening.

[0008] Preferably, the partition plate has evenly distributed through holes, the top outer side of the cloth bag is provided with a top plate that fits into the through holes, and the cloth bag is cylindrical and sealed at the bottom.

[0009] Preferably, a mounting platform is provided on the outside of the filter box, and the air box is placed on the mounting platform.

[0010] Preferably, the bottom end of the transmission rod movably passes through the filter box and the partition plate.

[0011] Preferably, the load-bearing frame includes a four-sided frame, evenly distributed baffles within the frame, and multiple springs symmetrically arranged on both sides of the bottom end of the frame.

[0012] Preferably, the bottom of the inner cavity of the filter box is provided with a symmetrical extension platform, the bottom end of the spring is connected to the top end of the extension platform, and there are two baffles symmetrical about the center of the bottom plate directly below the bottom plate.

[0013] Preferably, the differential pressure assembly includes multiple piston tubes, a piston disposed inside the piston tube, an L-shaped reversing tube movably disposed on one side of the piston tube, a gear disposed outside the reversing tube, and a rack disposed on the top of the piston that meshes with the gear.

[0014] Preferably, a central rod is provided at the top of the piston, and a horizontal connecting plate is provided at the top of the central rod to connect with the stop rod. Multiple sets of horizontal support rods are provided in the middle of the inner cavity of the dust collection box and fixed to the bottom end of the piston tube.

[0015] Preferably, a limiting ring is sleeved on the outer side of one end of the reversing tube located inside the piston tube, and the limiting ring and the gear are respectively attached to the inner and outer sidewalls of the piston tube.

[0016] This application provides a composite waste gas treatment device for paper-plastic-aluminum aseptic packaging materials. By setting a set of transmission rods with magnets installed at the bottom around the bag, when the bag needs to be cleaned, the hydraulic rod can drive the transmission rods upward through the cross plate, so that the magnets attract the bottom plate of the bag, causing the bag to compress and deform upward (equivalent to rubbing the bag). This causes the bag to squeeze the impurities adsorbed on the bag during the compression and deformation process, so that most of the unstable adsorption impurities will automatically fall off during the deformation process, and most of the stable adsorption impurities will also loosen during the deformation process, thereby improving the cleaning efficiency of the subsequent high-pressure gas.

[0017] Simultaneously, after the bag is compressed and deformed upwards, the bags stack up, and the overall length of the bags is reduced. At this time, the nozzle injects pulsed high-pressure gas into the compressed bag, so that the high-pressure gas can quickly impact the bottom of the bag. At this time, the high-pressure gas loss is small, and the downward impact force on the bag is large, causing the bottom plate of the bag to detach from the magnet under the impact, causing the bottom of the bag to fall and recover quickly, causing the compressed bag to unfold quickly, forming an extension (equivalent to quickly pulling the bag and suddenly stopping at the maximum pulling amount). When the extension is completed, the surface of the bag vibrates, shaking off loose impurities.

[0018] Simultaneously, as the bag falls rapidly from the bottom, it impacts the lower baffle, causing the baffle to exert a reaction force on the bag. This impact further shakes off impurities. The baffle also transmits force to the entire load-bearing frame, causing it to move downwards and compress the spring. Due to the nature of the spring, this causes the load-bearing frame to move up and down repeatedly. As the load-bearing frame returns to its original position, it impacts the bottom plate of the bag again, continuously subjecting the bag to an upward impact force. This continuous shaking enhances the cleaning effect. During this process, a pulsed high-pressure airflow continuously sprays in from top to bottom, causing the bag to also experience a downward impact force. The mutual impact of these two forces further intensifies the shaking of the bag, further enhancing the cleaning effect.

[0019] Simultaneously, as the force-bearing frame moves upward, it drives the central rod to pull the piston upward through the connected horizontal plate, which in turn drives the rack to rise and mesh with the gear. This causes the reversing tube to rotate upward around the center of the gear, resulting in the end of the reversing tube away from the piston tube facing the inner cavity of the filter box. This allows the piston to draw impurities from the filter box downward through the reversing tube as it moves upward, accelerating the descent of floating impurities in the filter box. Conversely, as the piston moves downward, the reversing tube rotates downward, causing the end of the reversing tube away from the piston tube to no longer face the inner cavity of the filter box. This allows most of the airflow from the piston to leave downward, resulting in a decrease in air pressure inside the dust collection box. Meanwhile, the air pressure inside the filter box increases due to the replenishment of high-pressure pulsed airflow, allowing impurities in the filter box to fall rapidly under the pressure difference. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0021] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram showing the location of the gas box in this invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the filter box structure of the present invention; Figure 5 This is a schematic diagram of the dust collection box structure of the present invention; Figure 6 This is a schematic diagram showing the positions of the partition plate and the air distribution pipe structure of the present invention; Figure 7 This is a schematic diagram of the transmission rod distribution of the present invention; Figure 8 This is a schematic diagram showing the positional relationship between the transmission rod and the cross plate of the present invention; Figure 9 This is a schematic diagram showing the relative positions of the transmission rod and the filter bag in this invention; Figure 10 This is a schematic diagram showing the structural positions of the force-bearing frame and the differential pressure assembly of the present invention; Figure 11 This is a schematic diagram of the stress-bearing frame structure of the present invention; Figure 12 This is a schematic diagram of the differential pressure component structure of the present invention; Figure 13 This is a schematic diagram of the internal structure of the piston tube of the present invention.

[0022] The components are as follows: 1. Filter box; 2. Mounting platform; 21. Extension platform; 22. Air inlet; 23. Exhaust outlet; 24. Air inlet baffle; 3. Dust collection box; 31. Waste discharge pipe; 32. Horizontal frame rod; 4. Air box; 41. Connecting pipe; 42. Electrically controlled valve; 43. Air distribution pipe; 44. Nozzle; 5. Partition plate; 51. Through hole; 6. Filter bag; 61. Top plate; 62. Bottom plate; 7. Fixing frame; 71. Hydraulic cylinder; 72. Hydraulic rod; 73. Horizontal plate; 74. Transmission rod; 75. Magnet; 8. Frame; 81. Stop bar; 82. Spring; 9. Piston tube; 91. Piston; 92. Center rod; 93. Rack; 94. Reversing pipe; 95. Gear; 96. Limiting ring; 97. Horizontal connecting plate. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] Example 1 Please see Figures 1 to 3 , Figure 5 A composite waste gas treatment device for paper-plastic-aluminum aseptic packaging materials includes a filter box 1, a dust collection box 3 is fixedly connected to the bottom opening of the filter box 1 by bolts, and a discharge pipe 31 with a valve is welded to the bottom opening of the dust collection box 3.

[0025] This allows the waste gas to be filtered in the filter box 1, and the impurities to fall and collect in the dust collection box 3, and then be discharged through the open discharge pipe 31.

[0026] See Figures 1 to 4 An air inlet 22 is fixedly connected to the top of one end of the filter box 1, and an exhaust port 23 is fixedly connected to the top of the other end, so that exhaust gas can enter the filter box 1 through the air inlet 22, while the relatively clean gas after filtration can be discharged through the exhaust port 23.

[0027] An air inlet baffle 24 is fixedly connected to one side of the top of the inner cavity of the filter box 1. The air inlet baffle 24 faces the air inlet 22, so that when the exhaust gas enters the filter box 1 through the air inlet 22, it can first hit the air inlet baffle 24, which slows down the exhaust gas and allows large particles of impurities in the exhaust gas to break away from the exhaust gas under impact and fall into the dust collection box 3 below under their own weight.

[0028] See Figure 3 , Figure 6 The top of the inner cavity of the filter box 1 is bolted to a partition plate 5, and the partition plate 5 has evenly distributed through holes 51.

[0029] The four sides of the partition plate 5 are respectively attached to the four sides of the inner cavity of the filter box 1. The partition plate 5 divides the inner cavity of the filter box 1 into a cleaning cavity above the partition plate 5 and a filter cavity below the partition plate 5. The air inlet 22 is connected to the filter cavity, and the exhaust port 23 is connected to the cleaning cavity.

[0030] This means that the exhaust gas must first enter the filter chamber, be filtered by the cloth bag 6, and then pass through the partition plate 5 into the cleaning chamber before being discharged through the exhaust port 23.

[0031] See Figure 3 , Figures 7 to 9 A top plate 61 with a central opening is fixedly fitted inside the through hole 51. A cylindrical cloth bag 6 is fixedly fitted in the center of the top plate 61. A bottom plate 62 is fixedly fitted on the outer side of the bottom of the cloth bag 6, so that the top plate 61 and the cloth bag 6 can seal the through hole 51. At this time, the exhaust gas entering the filter chamber must pass through the cloth bag 6 and be filtered before it can reach the clean chamber through the opening at the top of the cloth bag 6.

[0032] The bottom of the filter bag 6 is sealed, so that the exhaust gas must pass through the filter bag 6 before entering the filter bag 6. When the pulse airflow is sprayed into the filter bag from above, the filter bag 6 with the bottom sealed can better accumulate the energy of the pulse airflow for cleaning.

[0033] The base plate 62 is made of metal and has multiple through holes, so that most of the impurities that fall on the base plate 62 can be discharged through the holes, thus preventing excessive accumulation of impurities on the base plate 62.

[0034] See Figures 1 to 4 , Figure 6 A mounting platform 2 is provided on the top of one side of the filter box 1. An air box 4 is fixedly connected to the top of the mounting platform 2. A uniformly distributed connecting pipe 41 is fixedly connected to the top of the air box 4. An electric control valve 42 is fixedly connected to the top of the connecting pipe 41, so that the electric control valve 42 can be opened in a pulse when the filter bag needs to be cleaned, causing the high-pressure gas in the air box 4 to be discharged in a pulse through the electric control valve 42.

[0035] On one side of the electrically controlled valve 42 facing the filter box 1, there is a gas distribution pipe 43 fixedly connected. The gas distribution pipe 43 is fixedly penetrated into the cleaning chamber. At the bottom of the gas distribution pipe 43, evenly distributed nozzles 44 are fixedly connected. The nozzles 44 are facing the center of the top opening of the cloth bag 6, so that the pulsed high-pressure air flow can be pulsed into the cloth bag 6 through the nozzles 44 to clean the cloth bag 6 pulsedly. Under the impact of the pulsed high-pressure air flow, the cloth bag 6 vibrates to shake off the adsorbed impurities.

[0036] Refer to Figure 1 , Figure 3 , Figures 7 to 9 , on the top of the filter box 1, a "冂"-shaped fixing frame 7 is bolted. At the inner top end of the fixing frame 7, evenly distributed hydraulic cylinders 71 are bolted. Inside the hydraulic cylinders 71, hydraulic rods 72 are movably sleeved. At the bottom end of the hydraulic rods 72, a cross plate 73 is bolted, so that the hydraulic cylinders 71 are started intermittently when there is a cleaning need, causing the hydraulic cylinders 71 to drive the cross plate 73 to move up and down through the hydraulic rods 72.

[0037] At the bottom end of the cross plate 73, multiple transmission rods 74 are fixedly connected. Four transmission rods 74 that are close to each other and distributed in a "口" shape are in a group, so that when the cross plate 73 moves up and down, it can drive the transmission rods 74 to move synchronously.

[0038] The bottom end of the transmission rod 74 movably penetrates through the filter box 1 and the partition plate 5 to the bottom of the filter cavity. At the bottom end of the transmission rod 74, a magnet 75 is fixedly connected. The magnet 75 is adsorbed on the top end of the bottom plate 62. [[ID=1'],

[0039] When it is necessary to clean the cloth bag 6, the hydraulic rod 72 can drive the transmission rod 74 to move upward through the cross plate 73, so that the magnet 75 adsorbs the bottom plate 62 of the cloth bag 6, driving the cloth bag 6 to compress and deform upward (equivalent to kneading the cloth bag), so that during the compression deformation process of the cloth bag 6, the adsorbed impurities on the cloth bag 6 are squeezed, so that most of the unstable adsorbed impurities fall off automatically during the deformation process, and most of the stably adsorbed impurities can also be loosened during the deformation process of the cloth bag 6, improving the cleaning efficiency of the subsequent high-pressure gas.

[0040] At the same time, after the cloth bag 6 is compressed and deformed upward, the cloth bags 6 are stacked and the overall length of the cloth bag 6 is reduced. At this time, the nozzle 44 sprays pulsed high-pressure gas into the compressed cloth bag 6, so that the high-pressure gas can quickly impact the bottom of the cloth bag 6. At this time, the travel of the high-pressure gas is short and the loss is small, and the cleaning effect on the compressed cloth bag 6 is better. And after the pulsed high-pressure air flow impacts the bottom seal of the cloth bag 6, the cloth bag 6 receives a greater downward impact force, causing the bottom plate 62 of the cloth bag 6 to break away from the magnet 75 under the impact, so that the bottom of the cloth bag 6 quickly falls and restores, causing the compressed cloth bag 6 to quickly unfold, forming a single stretch (equivalent to quickly pulling the cloth bag 6 and suddenly stopping at the maximum pulling amount), so that the surface of the cloth bag undergoes a quick vibration when the stretch is completed, shaking off the loosened impurities.

[0041] A set of transmission rods 74 are arranged in a "mouth" shape to surround the outside of a single cloth bag 6, and the bottom plate 62 is adsorbed by magnets 75 distributed at the four corners, improving the stability of the upward movement of the bottom plate 62.

[0042] Sealing rubber rings are provided between the filter box 1 and the transmission rods 74, and sealing rubber rings are provided between the partition plate 5 and the transmission rods 74.

[0043] Embodiment 2 Please refer to Figures 3 to 4 , Figures 10 to 11 , on the basis of Embodiment 1, symmetric extension platforms 21 are fixedly welded to the bottom of the inner cavity of the filter box 1, evenly distributed springs 82 are fixedly connected to the tops of the extension platforms 21, and a frame 8 is fixedly connected to the tops of the springs 82.

[0044] The frame 8 is in the shape of a four-sided frame, and evenly distributed blocking rods 81 are fixedly connected to the inside of the frame 8.

[0045] There are two blocking rods 81 symmetrically centered on the bottom plate 62 directly below a bottom plate 62. When the downward-impacting bottom plate 62 hits the blocking rods 81, it can symmetrically hit the two symmetric blocking rods 81 below, preventing the bottom plate 62 from tilting and displacing below the blocking rods 81, resulting in the subsequent bottom plate 62 being blocked by the blocking rods 81 and unable to continue moving upward following the magnets 75.

[0046] When the bottom of the cloth bag 6 falls rapidly, it will hit the blocking rods 81 below, causing the blocking rods 81 to provide a reaction force to the cloth bag 6, causing the cloth bag 6 to be hit and further shake off impurities. Moreover, the blocking rods 81 transmit the force to the entire stressed frame, causing the stressed frame to move downward and compress the springs 82. According to the properties of the springs 82, it will drive the stressed frame to perform reciprocating up and down movements. As a result, when the stressed frame returns upward, it will hit the bottom plate 62 of the cloth bag 6 again, causing the cloth bag 6 to be intermittently subjected to an upward impact force, resulting in the cloth bag 6 continuously shaking under the impact, strengthening the cleaning effect of the impurities. And during this process, pulsed high-pressure air flows are sprayed from top to bottom, causing the cloth bag 6 to also receive an impact force from top to bottom. The mutual impact of the impact forces in the two directions causes the shaking of the cloth bag to be further strengthened, and the cleaning effect will also be further strengthened.

[0047] Embodiment 3 Please refer to Figure 3 , Figure 5 , Figure 10 , on the basis of Embodiment 2, multiple groups of cross-frame rods 32 are fixedly connected to the middle of the inner cavity of the dust collection box 3, and two adjacent cross-frame rods 32 are in a group.

[0048] The tops of a group of cross-frame rods 32 are fixedly connected with a plurality of rectangular piston pipes 9 through bolts, enabling the positions of the piston pipes 9 to be fixed by the cross-frame rods 32.

[0049] See Figures 12 to 13 The piston tube 9 runs through the top and bottom, and a piston 91 is movably connected inside the piston tube 9. When the piston 91 moves downward, it can squeeze the gas and impurities inside the piston tube 9 and discharge them through the bottom opening. At the same time, when the piston 91 moves upward, it can draw in the gas and impurities from the outside through the bottom opening of the piston tube 9.

[0050] The top of piston 91 is always located outside piston tube 9. The top of piston 91 has a rounded corner surface, so that impurities falling on the top of piston 91 can also fall off the rounded corner surface under the movement of piston 91, thus avoiding a large amount of impurities accumulating on the top of piston 91.

[0051] See Figure 3 , Figure 10 A central rod 92 is fixedly connected to the top center of the piston 91, and a transverse connecting plate 97 is fixedly connected to the top of the central rod 92. The top of the transverse connecting plate 97 is fixedly connected to the stop rod 81, so that when the stop rod 81 moves with the force-bearing frame, it can drive the piston 91 to move synchronously through the transverse connecting plate 97 and the central rod 92.

[0052] See Figures 12 to 13 An L-shaped reversing tube 94 is movably sleeved on one side of the bottom of the piston tube 9. One end of the reversing tube 94 is open and extends to the bottom of the inner cavity of the piston tube 9, so that the bottom of the piston tube 9 can be connected to the outside through the reversing tube 94.

[0053] A limiting ring 96 is fixedly sleeved on the outer side of one end of the reversing tube 94 located inside the piston tube 9. A gear 95 is fixedly sleeved on the outer side of the reversing tube 94. The side of the gear 95 facing the limiting ring 96 is in contact with the outer wall of the piston tube 9, and the side of the limiting ring 96 facing the gear 95 is in contact with the inner wall of the piston tube 9. This causes the limiting ring 96 and the gear 95 to be clamped on the side wall of the piston tube 9, so that the reversing tube 94 can only rotate around the center of the gear 95 and cannot move in other directions.

[0054] One side of the gear 95 is engaged with a rack 93. The bottom of the rack 93 is in contact with the top of the piston 91, so that when the piston 91 moves up and down, it can drive the rack 93 to move synchronously, thereby engaging the gear 95 and driving the gear 95 to rotate back and forth, which in turn drives the reversing tube 94 to rotate in both directions.

[0055] When rack 93 moves upward, meshing gear 95 rotates upward on the same side; when rack 93 moves downward, meshing gear 95 rotates downward on the same side.

[0056] This causes the central rod 92 to pull the piston 91 upward through the connected horizontal plate 97 when the force-bearing frame moves upward, and also causes the rack 93 to lift up and mesh with the gear 95. This causes the reversing tube 94 to rotate upward around the center of the gear 95, so that the opening of the reversing tube 94 away from the piston tube 9 faces the inner cavity of the filter box 1. When the piston 91 moves upward, it can draw impurities from the filter box 1 downward through the reversing tube 94, accelerating the rapid fall of floating impurities in the filter box 1. When the piston 91 moves downward, the reversing tube 94 rotates downward, so that the opening of the reversing tube 94 away from the piston tube 9 is no longer directly facing the inner cavity of the filter box 1. This allows most of the airflow pressed out by the piston 91 to leave downward, causing the air pressure in the dust collection box 3 to decrease. Meanwhile, the air pressure in the filter box 1 increases due to the supplement of high-pressure pulse airflow, allowing the impurities in the filter box 1 to fall rapidly under the pressure difference.

Claims

1. A waste gas treatment device for paper-plastic-aluminum aseptic packaging materials, characterized in that, The filter box (1) is connected with the dust collecting box (3) below. The filter box (1) is provided with a partition plate (5) on the top, and the partition plate (5) is provided with evenly distributed cloth bags (6). The filter box (1) is provided with a gas tank (4) on one side, and the gas tank (4) is provided with a plurality of communication pipes (41). The filter box (1) is provided with a fixed frame (7) on the top, and the fixed frame (7) is provided with evenly distributed hydraulic cylinders (71). The filter box (1) is provided with a plurality of differential pressure components.

2. A paper-plastic-aluminum sterile packaging material composite exhaust gas treatment device according to claim 1, characterized in that, The filter box (1) is provided with an air inlet (22) on one end and an air outlet (23) on the other end.

3. A paper-plastic-aluminum sterile packaging material composite exhaust gas treatment device according to claim 1, characterized in that, The partition plate (5) is provided with evenly distributed through holes (51), and the cloth bag (6) is provided with a top plate (61) on the top outside.

4. A paper-plastic-aluminum sterile packaging material composite exhaust gas treatment device according to claim 1, characterized in that, The filter box (1) is provided with a placement table (2) on the outside, and the gas tank (4) is arranged on the placement table (2).

5. A paper-plastic-aluminum sterile packaging material composite exhaust gas treatment device according to claim 1, characterized in that, The bottom end of the transmission rod (74) is movably penetrated through the filter box (1) and the partition plate (5).

6. A paper-plastic-aluminum sterile packaging material composite exhaust gas treatment device according to claim 1, characterized in that, The force frame includes a frame (8) with four edges, evenly distributed stop rods (81) arranged in the frame (8), and a plurality of springs (82) symmetrically arranged at the bottom end of the frame (8).

7. A paper-plastic-aluminum sterile packaging material composite exhaust gas treatment device according to claim 6, characterized in that, The filter box (1) is provided with a symmetric extension table (21) at the bottom of the inner cavity, and the bottom end of the spring (82) is connected with the top end of the extension table (21).

8. A paper-plastic-aluminum sterile packaging material composite exhaust gas treatment device according to claim 7, characterized in that, The differential pressure component includes a plurality of piston pipes (9), a piston (91) arranged in the piston pipe (9), an L-shaped reversing pipe (94) movably arranged on one side of the piston pipe (9), a gear (95) arranged on the outside of the reversing pipe (94), and a rack (93) arranged on the top of the piston (91) and engaged with the gear (95).

9. A paper-plastic-aluminum aseptic packaging material composite exhaust gas treatment device according to claim 8, characterized in that, The top end of the piston (91) is provided with a center rod (92), the top end of the center rod (92) is provided with a transverse connecting plate (97) connected with the stop rod (81), and the inner cavity of the dust collecting box (3) is provided with a plurality of groups of transverse frame rods (32) fixed with the bottom end of the piston pipe (9).

10. A paper-plastic-aluminum aseptic packaging material composite exhaust gas treatment device according to claim 9, characterized in that, The reversing pipe (94) is sleeved with a limiting ring (96) outside one end in the piston pipe (9), and the limiting ring (96) and the gear (95) are respectively attached to the inner side wall and the outer side wall of the piston pipe (9).

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