Tail gas and smoke three-stage degradation device of plastic extrusion equipment

By designing detachable filter and spray components, the problem of dust baffle clogging was solved, achieving efficient exhaust gas purification and convenient component replacement, thus improving the quality of exhaust gas degradation and environmental protection.

CN223969716UActive Publication Date: 2026-03-06SHANGHAI SIQI HIGH POLYMER MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing technologies, the dust baffle is fixedly installed and connected to the device. After long-term use, the filter holes are prone to clogging, which affects the filtration efficiency and quality of the exhaust gas.

Method used

It adopts a detachable filter assembly and spray assembly, including a filter screen, activated carbon plate, plug-in assembly and spray assembly. The filter assembly is fixed and limited by the plug-in rod, and the moving plate is adjusted by rotating the rotating block, so as to realize the convenient disassembly and replacement of the filter assembly, and the exhaust gas is further purified by the spray assembly.

Benefits of technology

It improves the efficiency and quality of exhaust gas degradation and purification, reduces environmental pollution, facilitates the cleaning and replacement of filter components, and enhances the purification effect of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223969716U_ABST
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Abstract

The utility model relates to the technical field of tail gas degradation, in particular to a three-stage degradation device for tail gas and smoke dust of plastic extrusion equipment, which comprises a box body, a filtering assembly arranged in the box body and a spraying assembly arranged in the box body, the filter assembly comprises a vertical plate fixedly mounted in the box body, mounting blocks fixedly mounted at the top and the bottom of the inner wall of the box body, a stop block fixedly mounted in the box body, and a filter screen plate and an activated carbon plate which are mounted on the two sides of the two mounting blocks. According to the tail gas and smoke three-stage degradation device of the plastic extrusion equipment, by installing the filtering assembly, tail gas generated in the production process of plastic products can be conveniently filtered and adsorbed, the efficiency and quality of tail gas degradation and purification are improved, pollution to the surrounding environment is reduced, a filtering net plate and an activated carbon plate can be conveniently detached, replaced and cleaned, and the cost is reduced. And the spraying assembly is installed, so that the tail gas purification quality of the device is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of exhaust gas degradation technology, specifically a three-stage degradation device for exhaust gas and dust from plastic extrusion equipment. Background Technology

[0002] The production of plastic products generates a large amount of exhaust gas, which contains many dust particles and toxic substances. According to the regulations of the environmental protection department, the waste gas generated by the industrial sector can be divided into two categories: waste gas containing particulate matter and waste gas containing gaseous pollutants.

[0003] Please refer to the three-stage degradation device for exhaust gas and dust from plastic extrusion equipment, which is disclosed in announcement number CN109529516A. The device includes a first square dust collection bin, a second square dust collection bin, a circular dust collection bin, and a dust baffle plate. The dust baffle plate has several through holes. Three sets of circular tubes are fixedly installed inside the circular dust collection bin. Several nozzles are fixedly installed on the inner wall of the circular tubes. A water pipe is fixedly installed on the right side of the circular dust collection bin. A branch pipe is fixedly connected between the water pipe and the circular tubes. This invention can perform three-stage filtration of air, further degrading dust and reducing pollution.

[0004] In the aforementioned patent, a dust baffle is used to filter particulate impurities in the exhaust gas. Dust adhering to its surface is removed by scraping and vibration. However, the dust baffle is fixedly connected to the device. After long-term use, impurities may become stuck and clogged inside the filter holes. The scraper is not convenient to clean the impurities stuck inside the filter holes of the dust baffle, thus affecting the efficiency and quality of exhaust gas filtration. This application proposes a technical solution to address this problem. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a three-stage degradation device for exhaust gas and dust from plastic extrusion equipment. It has advantages such as filter separation and solves the problem that when the dust baffle is fixedly installed and connected to the device, the filter holes will become clogged with impurities after long-term use, affecting the efficiency and quality of exhaust gas filtration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-stage degradation device for exhaust gas and dust from a plastic extrusion equipment, comprising a housing, a filter assembly installed inside the housing, and a spraying assembly installed inside the housing;

[0007] The filter assembly includes a vertical plate fixedly installed inside the housing, mounting blocks fixedly installed on the top and bottom of the inner wall of the housing, a baffle fixedly installed inside the housing, a filter screen and an activated carbon plate installed on both sides of the two mounting blocks, and a plug-in assembly and a moving assembly installed inside the mounting blocks.

[0008] By adopting the above technical solutions, it is easier to filter and adsorb exhaust gas, improve the efficiency and quality of exhaust gas degradation and purification, and reduce pollution to the surrounding environment.

[0009] Optionally, the plug-in assembly includes two connecting plates fixedly installed inside the mounting block, a telescopic spring fixedly installed on opposite sides of the two connecting plates, a movable plate fixedly installed on opposite sides of the two telescopic springs, and a plug-in rod fixedly installed on opposite sides of the two movable plates.

[0010] By adopting the above technical solution, the filter screen and activated carbon plate are fixed and limited inside the box by the plug-in rod, which also makes it easy to disassemble and replace the filter screen and activated carbon plate.

[0011] Optionally, the moving component includes a rotating rod rotatably mounted inside the mounting block, a rope rotatably mounted outside the rotating rod and fixedly connected to the moving plate, and a rotating block mounted on opposite sides of the two rotating rods.

[0012] By adopting the above technical solution, the rotating block is rotated, causing the rotating rod to rotate, which in turn causes the two ropes to rotate, thereby achieving the purpose of adjusting the movement of the connecting rod.

[0013] Optionally, the spraying assembly includes an air pump fixedly installed on the top of the housing, a water tank fixedly installed on the top of the housing, a water pump fixedly installed on the top of the housing and fixedly connected to one side of the water tank, and a water guide pipe fixedly installed on the top of the inner wall of the housing.

[0014] By adopting the above technical solutions, the quality of exhaust gas purification can be further improved, and pollution to the surrounding environment can be reduced.

[0015] Optionally, extension holes are provided on both sides of the mounting block, and the two sets of plug-in rods are respectively plugged into the filter screen plate and the activated carbon plate. The filter screen plate and the activated carbon plate are provided with plug-in holes on opposite sides for plugging in the plug-in rods.

[0016] By adopting the above technical solution, the connection between the plug rod and the filter screen and activated carbon plate is released, making it easier to disassemble and replace the filter screen and activated carbon plate.

[0017] Optionally, the movable plate is slidably connected to the mounting block, and the two mounting blocks have grooves inside for the movable plate to move. A sealing door is hinged to the front of the box, and an inclined plate is fixedly installed inside the box.

[0018] By adopting the above technical solution, the filter screen and activated carbon plate can be easily removed from the box by opening the sealed door, and the inclined plate facilitates the outflow of liquid from the box.

[0019] Optionally, each of the two mounting blocks has a through hole on one side for the rotating rod to extend to the outside, and an air intake pipe is installed on the left side of the housing.

[0020] By adopting the above technical solution, the rotating rod and the rotating block are fixedly connected, and the rotating rod is driven to rotate by rotating the rotating block.

[0021] Optionally, an air outlet pipe and a liquid outlet pipe are fixedly installed on the right side of the housing, and a solenoid valve is fixedly installed on the outside of both the air outlet pipe and the liquid outlet pipe. A number of nozzles are fixedly installed at the bottom of the water guide pipe.

[0022] By adopting the above technical solution, it is easy to control the time when exhaust gas and liquid are discharged from the inside of the box.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This three-stage degradation device for exhaust gas and dust in plastic extrusion equipment is equipped with a filter assembly, which facilitates the filtration and adsorption treatment of exhaust gas generated during the production of plastic products. This improves the efficiency and quality of exhaust gas degradation and purification, reduces pollution to the surrounding environment, and allows for easy disassembly, replacement, and cleaning of the filter screen and activated carbon plate, thereby improving the adsorption and purification quality of the device. The installation of a spray assembly further enhances the quality of exhaust gas purification. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Enlarged view of the A-structure;

[0027] Figure 3 This is a front view of the structure of this utility model;

[0028] Figure 4 This is a three-dimensional view of the mounting block structure of this utility model.

[0029] In the diagram: 1. Box body; 2. Vertical plate; 3. Mounting block; 301. Extension hole; 4. Stop block; 5. Filter screen plate; 6. Activated carbon plate; 7. Connecting plate; 8. Telescopic spring; 9. Moving plate; 901. Slide groove; 10. Insert rod; 101. Insert hole; 11. Rotating rod; 111. Through hole; 12. Rope; 13. Rotating block; 14. Air pump; 15. Water tank; 16. Water pump; 17. Water guide pipe. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-4 The three-stage degradation device for exhaust gas and dust of a plastic extrusion equipment in this embodiment includes a housing 1, a filter assembly installed inside the housing 1, and a spraying assembly installed inside the housing 1.

[0032] In this embodiment, the filter assembly includes a vertical plate 2 fixedly installed inside the housing 1, which divides the interior of the housing 1 into a left chamber and a right chamber, mounting blocks 3 fixedly installed on the top and bottom of the inner wall of the housing 1, a sealing door hinged to the front of the housing 1, and an inclined plate fixedly installed inside the housing 1 to facilitate the outflow of liquid from the interior of the housing 1.

[0033] The filter assembly also includes a baffle 4 fixedly installed inside the housing 1, a filter screen 5 and an activated carbon plate 6 installed on both sides of the two mounting blocks 3, and a plug-in assembly and a moving assembly installed inside the mounting blocks 3.

[0034] The plug-in assembly includes two connecting plates 7 fixedly installed inside the mounting block 3, two telescopic springs 8 fixedly installed on opposite sides of the two connecting plates 7, and a movable plate 9 fixedly installed on opposite sides of the two telescopic springs 8. The movable plate 9 is slidably connected to the mounting block 3. The two mounting blocks 3 have grooves 901 inside for the movable plate 9 to move, providing guidance for the movable plate 9 and making the movement of the movable plate 9 more convenient.

[0035] The plug-in assembly also includes plug-in rods 10 fixedly installed on opposite sides of the two movable plates 9. Extension holes 301 are provided on both sides of the mounting block 3. The two sets of plug-in rods 10 are plugged into the filter screen plate 5 and the activated carbon plate 6 respectively. Plug-in holes 101 for plugging in the plug-in rods 10 are provided on opposite sides of the filter screen plate 5 and the activated carbon plate 6, so as to fix and limit the filter screen plate 5 and the activated carbon plate 6 inside the box 1, so as to achieve the purpose of purifying and adsorbing exhaust gas.

[0036] The moving component includes a rotating rod 11 rotatably mounted inside the mounting block 3. Both mounting blocks 3 have through holes 111 on opposite sides for the rotating rod 11 to extend to the outside. An air intake pipe is installed on the left side of the housing 1.

[0037] The moving assembly also includes a rope 12 rotatably mounted on the outside of the rotating rod 11 and fixedly connected to the moving plate 9, and a rotating block 13 mounted on opposite sides of the two rotating rods 11.

[0038] In this embodiment, the spraying assembly includes an air pump 14 fixedly installed on the top of the housing 1. The output end and input end of the air pump 14 are both fixedly installed with a transmission pipe and an air extraction pipe extending into the interior of the housing 1, so as to facilitate the transmission of purified exhaust gas to the right chamber of the housing 1.

[0039] A water tank 15 is fixedly installed on the top of the tank body 1; a water pump 16 is fixedly installed on the top of the tank body 1 and fixedly connected to one side of the water tank 15; and a water pipe 17 is fixedly installed on the top of the inner wall of the tank body 1.

[0040] An air outlet pipe and a liquid outlet pipe are fixedly installed on the right side of the housing 1, and solenoid valves are fixedly installed on the outside of both the air outlet pipe and the liquid outlet pipe. A number of nozzles are fixedly installed at the bottom of the water guide pipe 17 to facilitate the spraying and purification of exhaust gas.

[0041] The working principle of the above embodiment is as follows: During use, the exhaust gas generated during the production of plastic products is transported to the inside of the box 1 through the air inlet pipe. Then, the particulate dust and impurities contained in the exhaust gas are filtered through the filter screen plate 5, and the toxic gases contained in the exhaust gas are adsorbed through the activated carbon plate 6. Then, the air pump 14 is started, and the filtered and adsorbed exhaust gas is transported to the right side chamber of the box 1 through the air extraction pipe and the transmission pipe. Then, the water pump 16 is started, and the liquid inside the water tank 15 is drawn into the water guide pipe 17. Then, the exhaust gas is sprayed through the nozzle to further purify the exhaust gas. The purified and degraded exhaust gas is discharged from the inside of the box 1 through the air outlet pipe, and the liquid is discharged from the inside of the box 1 through the liquid outlet pipe.

[0042] When the filter screen 5 and activated carbon plate 6 need to be replaced, open the sealed door, rotate the rotating block 13 to drive the rotating rod 11 to rotate, so that the rope 12 rotates on the outside of the rotating rod 11, thereby driving the two moving plates 9 to move in opposite directions, so that the telescopic spring 8 is compressed. Then, move the plug rod 10 out of the filter screen 5 and activated carbon plate 6 to release the restriction on the filter screen 5 and activated carbon plate 6. Then, take the filter screen 5 and activated carbon plate 6 out of the box 1, and then clean and replace the filter screen 5 and activated carbon plate 6 to improve the efficiency and quality of exhaust gas degradation and purification.

Claims

1. A plastic extrusion equipment tail gas, soot three-stage degradation device, characterized in that: The utility model provides a filter and spray device, which comprises a box (1), a filter assembly installed inside the box (1) and a spray assembly installed inside the box (1). The filter assembly comprises a vertical plate (2) fixedly installed inside the box (1), mounting blocks (3) fixedly installed on the top and bottom inner walls of the box (1), a stop block (4) fixedly installed inside the box (1), filter screen plates (5) and activated carbon plates (6) installed on both sides of the mounting blocks (3), a plug-in assembly and a moving assembly installed inside the mounting blocks (3).

2. The plastic extrusion equipment tail gas, smoke dust three-stage degradation device according to claim 1, characterized in that: The plug-in assembly comprises two connecting plates (7) fixedly installed inside the mounting blocks (3), extension springs (8) fixedly installed on the opposite sides of the connecting plates (7), moving plates (9) fixedly installed on the opposite sides of the extension springs (8) and plug-in rods (10) fixedly installed on the opposite sides of the moving plates (9).

3. The plastic extrusion equipment tail gas, smoke dust three-stage degradation device according to claim 1, characterized in that: The moving assembly comprises rotating rods (11) rotatably installed inside the mounting blocks (3), ropes (12) rotatably installed on the outer sides of the rotating rods (11) and fixedly connected with the moving plates (9) and rotating blocks (13) installed on the opposite sides of the rotating rods (11).

4. The plastic extrusion equipment tail gas, smoke dust three-stage degradation device according to claim 1, characterized in that: The spray assembly comprises an air suction pump (14) fixedly installed on the top of the box (1), a water tank (15) fixedly installed on the top of the box (1), a water suction pump (16) fixedly installed on the top of the box (1) and fixedly connected with one side of the water tank (15) and a water guide pipe (17) fixedly installed on the top inner wall of the box (1).

5. The plastic extrusion equipment tail gas, smoke dust three-stage degradation device according to claim 2, characterized in that: Both sides of the mounting blocks (3) are provided with extension holes (301), two groups of plug-in rods (10) are respectively plugged into the filter screen plates (5) and the activated carbon plates (6), and the opposite sides of the filter screen plates (5) and the activated carbon plates (6) are provided with plug-in holes (101) for the plug-in rods (10).

6. The plastic extrusion equipment tail gas, smoke dust three-stage degradation device according to claim 2, characterized in that: The moving plates (9) are slidingly connected with the mounting blocks (3), the interiors of the two mounting blocks (3) are provided with sliding grooves (901) for the movement of the moving plates (9), the front of the box (1) is hingedly connected with a sealing door and the interior of the box (1) is fixedly installed with an inclined plate.

7. The plastic extrusion equipment tail gas, smoke dust three-stage degradation device according to claim 1, characterized in that: The opposite sides of the two mounting blocks (3) are provided with through holes (111) for the extension of the rotating rods (11) to the outside, and the left side of the box (1) is provided with an air inlet pipe.

8. The plastic extrusion equipment tail gas, smoke dust three-stage degradation device according to claim 4, characterized in that: The right side of the box (1) is fixedly installed with an air outlet pipe and a liquid outlet pipe, the outer sides of the air outlet pipe and the liquid outlet pipe are fixedly installed with electromagnetic valves, and the bottom of the water guide pipe (17) is fixedly installed with a plurality of spray heads.

Citation Information

Patent Citations

  • Three-stage degradation device for exhaust and smoke dust of plastic extrusion equipment

    CN109529516A