Tail gas treatment device for plastic product processing

Abstract

The utility model relates to the technical field of plastic product processing, and discloses a tail gas treatment device for plastic product processing, which comprises a box body, the waste gas pipe is used for conveying waste gas into the box body, the outer wall of the waste gas pipe is fixedly connected with a limiting ring, and the interior of the limiting ring is rotationally connected with rotating rollers which are arranged in an annular array; and the outer wall of the air outlet pipe is rotationally connected with a support, the support is used for supporting the air outlet pipe, and a through hole is formed in the air outlet pipe at an angle of 45 degrees. According to the tail gas treatment device, waste gas enters the gas outlet pipe and is blown out from the through holes, and the through holes are formed in the gas outlet pipe at an angle of 45 degrees, so that the gas outlet pipe can be driven to rotate when the waste gas is blown out from the through holes, the effect that the waste gas is in full contact with water mist is achieved, the problem that the waste gas cannot be in full contact with the water mist is solved, and the treatment efficiency of the tail gas treatment device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product processing, in particular to an exhaust gas treatment device for plastic product processing. Background Art

[0002] Plastic products are various products manufactured through plastic processing technologies and are widely used in multiple fields such as daily life, industry, and medical treatment. Plastic products have the advantages of light weight, corrosion resistance, easy molding and processing, etc. During the plastic processing process, various harmful gases and chemical substances will be generated, such as volatile organic compounds (VOCs), hydrogen chloride, hydrogen fluoride, etc. Therefore, an exhaust gas treatment device for plastic product processing is required.

[0003] During the use of the exhaust gas treatment device for traditional plastic product processing, first, the waste gas is guided into the treatment device by a fan, and then the gas is cooled, filtered, adsorbed, and catalytically reacted, etc., to remove or convert volatile organic compounds and other pollutants. Finally, the purified gas is released into the atmosphere to ensure compliance with environmental protection standards and reduce the impact on the environment.

[0004] However, during the process of cooling the exhaust gas, the problem that the contact between the exhaust gas and the water mist is uneven is not solved. When cooling the exhaust gas and adsorbing harmful particles in the exhaust gas through the water mist, a large amount of exhaust gas cannot fully contact with the water mist. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an exhaust gas treatment device for plastic product processing, aiming to improve the problem that when cooling the exhaust gas and adsorbing harmful particles in the exhaust gas through the water mist, a large amount of exhaust gas cannot fully contact with the water mist.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: An exhaust gas treatment device for plastic product processing, comprising:

[0007] A box body, which is used to hold the whole;

[0008] An exhaust gas pipe, which is used to transport the exhaust gas into the box body. A limiting ring is fixedly connected to the outer wall of the exhaust gas pipe, and a rotation roller arranged in an annular array is rotatably connected inside the limiting ring;

[0009] An exhaust pipe, a bracket is rotatably connected to the outer wall of the exhaust pipe, the bracket is used to support the exhaust pipe, a through hole is provided inside the exhaust pipe, the through hole is provided inside the exhaust pipe at an angle of 45°, the through hole is used to guide the ejection angle of the gas and drive the exhaust pipe to rotate, a sealing assembly is provided on the outer wall of the waste gas pipe, the sealing assembly is used for sealing between the waste gas pipe and the exhaust pipe, a guiding piece is fixedly connected to the outer wall of the exhaust pipe, the guiding piece is used to concentrate the ejection of the waste gas, and a limiting groove is provided inside the exhaust pipe, and the limiting groove is fitted with a limiting ring;

[0010] An extension pipe, a nozzle is fixedly connected to the outer wall of the extension pipe, and the nozzle is used to spray water mist to increase the contact area with the waste gas;

[0011] A partition board, a second baffle and a first baffle, the partition board is fixedly connected inside the box body, the bottom of the first baffle is fixedly connected inside the box body, an opening is provided inside the partition board, and the opening is used to pass water flow, and the second baffle is arranged up and down staggeredly inside the box body to increase the residence time of the waste gas inside the box body;

[0012] A first filter screen, the first filter screen is used to further filter the waste gas, and a frame is fixedly connected to the outer wall of the first filter screen, and the frame is used to support the first filter screen;

[0013] A discharge pipe, and the discharge pipe is used to discharge the filtered waste gas.

[0014] As a further description of the above technical solution:

[0015] The sealing assembly includes a sealing ring, the inner wall of the sealing ring is fixedly connected to the outer wall of the waste gas pipe, and the outer wall of the sealing ring is attached to the inner wall of the exhaust pipe.

[0016] As a further description of the above technical solution:

[0017] One side of the bracket is fixedly connected to the inner wall of the box body, and the frame is fixedly connected to the inside of the box body.

[0018] As a further description of the above technical solution:

[0019] A first water outlet pipe is fixedly connected inside the box body, one end of the first water outlet pipe is fixedly connected with a circulation pump, the first water outlet pipe is connected to the input end of the circulation pump, the output end of the circulation pump is fixedly connected with a second water outlet pipe, and one end of the second water outlet pipe is fixedly connected with a sealing cover.

[0020] As a further description of the above technical solution:

[0021] A filter cylinder is threadedly connected inside the sealing cover, a return water pipe is fixedly connected inside the filter cylinder, one end of the return water pipe is fixedly connected with a connecting pipe, and one end of the connecting pipe is fixedly connected inside the extension pipe.

[0022] As a further description of the above technical solution:

[0023] A support ring is fixedly connected inside the filter cartridge, a second filter screen is arranged inside the filter cartridge, and a fixing ring is fixedly connected to the top of the second filter screen.

[0024] As a further description of the above technical solution:

[0025] A first support column is fixedly connected to the bottom of the sealing cover, and a second support column is slidably connected inside the first support column.

[0026] As a further description of the above technical solution:

[0027] A spring is arranged inside the first support column, one end of the spring is fixedly connected inside the first support column, and the other end of the spring is fixedly connected to the top of the second support column.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, first, the waste gas pipe enters the inside of the exhaust pipe and is blown out from the through holes. The through holes are opened in the exhaust pipe at an angle of 45°, and multiple groups of guiding vanes are evenly arranged on the outer wall of the exhaust pipe, so that the waste gas can drive the exhaust pipe to rotate when being blown out from the through holes, achieving the effect of sufficient contact between the waste gas and the water mist, solving the problem that a large amount of waste gas cannot fully contact with the water mist when the waste gas is cooled and harmful particles in the waste gas are adsorbed by the water mist, and improving the treatment efficiency of the tail gas treatment device for plastic product processing.

[0030] 2. In the utility model, after the filtered water is sprayed out through the nozzle, it flows into the bottom through the openings and enters the filter cartridge through the circulation pump for filtration. The second filter screen in the filter cartridge filters the filtered water, achieving the effect of recycling water resources, solving the problem that the traditional tail gas treatment device for plastic product processing directly discharges the water after adsorbing harmful particles through filtration, and improving the practicability of the tail gas treatment device for plastic product processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective view of the tail gas treatment device for plastic product processing proposed by the utility model;

[0032] Figure 2 is a schematic diagram of the internal structure of the box body of the tail gas treatment device for plastic product processing proposed by the utility model;

[0033] Figure 3 is a schematic diagram of the limiting ring structure of the tail gas treatment device for plastic product processing proposed by the utility model;

[0034] Figure 4Internal structure schematic diagram of the air outlet pipe of the tail gas treatment device for plastic product processing proposed by the present utility model;

[0035] Figure 5 Internal structure schematic diagram of the filter cartridge of the tail gas treatment device for plastic product processing proposed by the present utility model.

[0036] Legend description:

[0037] 1. Box body; 2. Waste gas pipe; 3. Bracket; 4. Limit ring; 5. Rotating roller; 6. Sealing ring; 7. Air outlet pipe; 8. Limit groove; 9. Guide piece; 10. Through hole; 11. First baffle; 12. Partition board; 13. Opening; 14. Second baffle; 15. Frame; 16. First filter net; 17. Discharge pipe; 18. Connecting pipe; 19. Extension pipe; 20. Nozzle; 21. Return water pipe; 22. First water outlet pipe; 23. Circulation pump; 24. Second water outlet pipe; 25. Filter cartridge; 26. Sealing cover; 27. Support ring; 28. Fixed ring; 29. Second filter net; 30. First support column; 31. Second support column; 32. Spring. Specific implementation manners

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] Refer to Figures 1 - 4 , an embodiment provided by the present utility model: 1. A tail gas treatment device for plastic product processing, including:

[0040] Box body 1, and the box body 1 is used to hold the whole;

[0041] Waste gas pipe 2, and the waste gas pipe 2 is used to convey waste gas into the box body 1. A limit ring 4 is fixedly connected to the outer wall of the waste gas pipe 2, and a rotating roller 5 arranged in an annular array is rotatably connected inside the limit ring 4;

[0042] Air outlet pipe 7, and a bracket 3 is rotatably connected to the outer wall of the air outlet pipe 7. The bracket 3 is used to support the air outlet pipe 7. A through hole 10 is opened inside the air outlet pipe 7, and the through hole 10 is opened at an angle of 45° inside the air outlet pipe 7. The through hole 10 is used to guide the spraying angle of the gas to drive the air outlet pipe 7 to rotate. A sealing component is arranged on the outer wall of the waste gas pipe 2, and the sealing component is used for sealing between the waste gas pipe 2 and the air outlet pipe 7. A guide piece 9 is fixedly connected to the outer wall of the air outlet pipe 7, and the guide piece 9 is used to concentrate the spraying of the waste gas. A limit groove 8 is opened inside the air outlet pipe 7, and the limit groove 8 is fitted with the limit ring 4;

[0043] An extension pipe 19, the outer wall of which is fixedly connected with a nozzle 20, the nozzle 20 is used to spray water mist to increase the contact area with the exhaust gas;

[0044] The partition 12, the second baffle 14 and the first baffle 11, the partition 12 is fixedly connected to the inside of the box body 1, the bottom of the baffle 11 is fixedly connected to the inside of the box body 1, the partition 12 is provided with an opening 13, the opening 13 is used for passing water flow, and the second baffle 14 is staggered up and down in the box body 1 to increase the residence time of the exhaust gas in the box body 1;

[0045] A filter screen 16, the filter screen 16 is used to further filter the exhaust gas, and the outer wall of the filter screen 16 is fixedly connected with a frame 15, and the frame 15 is used to support the filter screen 16;

[0046] The exhaust pipe 17 is used to discharge the filtered exhaust gas. The sealing assembly includes a sealing ring 6. The inner wall of the sealing ring 6 is fixedly connected to the outer wall of the exhaust pipe 2. The outer wall of the sealing ring 6 is attached to the inner wall of the exhaust pipe 7. One side of the bracket 3 is fixedly connected to the inner wall of the box 1. The frame 15 is fixedly connected to the inside of the box 1.

[0047] Specifically, a layer of filtered water source higher than the partition 12 is set in the box body 1, and the baffle 11 is tightly combined with the partition 12 to effectively block the flow of the water source. The output end of the circulation pump 23 draws out the water source between the partition 12 and the box body 1 through the outlet pipe 1 22, and is strongly pumped out by the circulation pump 23, so that the water source flows smoothly into the outlet pipe 2 24, and then enters the filter cartridge 25 for fine filtration. The filtered water source is then guided into the connecting pipe 18 through the return pipe 21, and is evenly sprayed in the internal space of the box body 1 in the form of fine water mist from the nozzle 20 on the extension pipe 19. At the same time, the exhaust gas enters the interior of the outlet pipe 7 through the exhaust pipe 2, and is set at the outlet pipe 7. The through hole 10 on the exhaust pipe 2 is blown out at a certain angle of 45°. The through hole 10 is precisely opened in the exhaust pipe 7. The multiple groups of guide plates 9 evenly arranged on the outer wall effectively guide the exhaust pipe 7 to rotate through the flow of exhaust gas. The exhaust pipe 7 is firmly embedded in the limiting groove 8 through the limiting ring 4 on the outer wall of the exhaust pipe 2 for stable limiting, and the rotational friction of the exhaust pipe 7 is effectively reduced with the help of the rotating roller 5. In addition, the sealing ring 6 arranged between the exhaust pipe 2 and the exhaust pipe 7 ensures a tight seal between the exhaust pipe 2, so that the exhaust gas can fully contact with the sprayed water mist through the rotation motion when entering the box body 1, which significantly improves the contact efficiency between the exhaust gas and the water mist, thereby improving the exhaust gas purification effect.

[0048] Reference Figure 5, a water outlet pipe 22 is fixedly connected inside the box body 1. One end of the water outlet pipe 22 is fixedly connected with a circulation pump 23. The water outlet pipe 22 is connected to the input end of the circulation pump 23. The output end of the circulation pump 23 is fixedly connected with a water outlet pipe 24. One end of the water outlet pipe 24 is fixedly connected with a sealing cover 26. A filter cartridge 25 is threadedly connected inside the sealing cover 26. A water return pipe 21 is fixedly connected inside the filter cartridge 25. One end of the water return pipe 21 is fixedly connected with a connecting pipe 18. One end of the connecting pipe 18 is fixedly connected inside an extension pipe 19. A support ring 27 is fixedly connected inside the filter cartridge 25. A second filter screen 29 is arranged inside the filter cartridge 25. The top of the second filter screen 29 is fixedly connected with a fixing ring 28. The bottom of the sealing cover 26 is fixedly connected with a first support column 30. A second support column 31 is slidably connected inside the first support column 30. A spring 32 is arranged inside the first support column 30. One end of the spring 32 is fixedly connected inside the first support column 30. The other end of the spring 32 is fixedly connected to the top of the second support column 31;

[0049] Specifically, the waste gas passes through the combined arrangement of multiple second baffles 14 inside the box body 1, effectively extending the residence time of the waste gas inside the box body 1 and ensuring that the waste gas can fully contact the purification medium. Subsequently, the waste gas is guided to the first filter screen 16. After fine filtration, the waste gas is safely discharged through the discharge pipe 17. At the same time, the filtered water is evenly sprayed through the nozzle 20 and flows into the bottom of the box body 1 through the opening 13 at the bottom to ensure the recycling of water sources. Then, the water source is pumped into the filter cartridge 25 by the circulation pump 23 for multi-layer filtration. The second filter screen 29 arranged inside the filter cartridge 25 further filters the filtered water meticulously. The second filter screen 29 is effectively limited at the top of the support ring 27 through the stable fixing ring 28 to ensure the stability of the filter screen during the filtration process. At the same time, the spring 32 supports and extends the second support column 31 through its tension, forming a stable support structure with the first support column 30 and further resisting the fixing ring 28 to ensure the smooth and efficient operation of the entire filtration process.

[0050] Working principle: When using the tail gas treatment device for processing plastic products, first, there is filtered water higher than the partition plate 12 in the box body 1. The first baffle 11 and the partition plate 12 are combined to cut off the water source. Subsequently, the output end of the circulation pump 23 pumps out the water source between the partition plate 12 and the box body 1 through the first water outlet pipe 22, and pumps it through the output end of the circulation pump 23 so that the water source enters the filter cylinder 25 through the second water outlet pipe 24 and then enters the connecting pipe 18 from the return water pipe 21. Subsequently, it is sprayed inside the box body 1 from the nozzle 20 on the extension pipe 19. At the same time, the waste gas enters the inside of the outlet pipe 7 through the waste gas pipe 2 and blows out from the through hole 10. The through hole 10 is opened at a 45° angle in the outlet pipe 7, and multiple groups of guide vanes 9 are evenly arranged on the outer wall of the outlet pipe 7, so that the waste gas can drive the outlet pipe 7 to rotate when blowing out from the through hole 10. The outlet pipe 7 is limited by being fitted in the limit groove 8 through the limit ring 4 on the outer wall of the waste gas pipe 2. A rotating roller 5 is arranged between the limit ring 4 and the outlet pipe 7 to reduce the friction force. A sealing ring 6 is used for die sealing between the waste gas pipe 2 and the outlet pipe 7, so that the waste gas rotates and contacts with the water mist after entering the box body 1, thereby improving the contact efficiency with the water mist. Subsequently, the waste gas extends the residence time in the box body 1 through the combination of multiple second baffles 14. Subsequently, the waste gas is filtered by the first filter net 16 and discharged from the discharge pipe 17. The filtered water flows into the bottom through the opening 13 after being sprayed out by the nozzle 20 and enters the filter cylinder 25 through the circulation pump 23 for filtration. The second filter net 29 in the filter cylinder 25 filters the filtered water. The second filter net 29 is limited at the top of the support ring 27 through the fixing ring 28, and the support column two 31 is supported to extend out of the support column one 30 by the tension of the spring 32, so that the support column two 31 presses against the fixing ring 28.

[0051] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for plastic product processing, characterized in that: include: A box body (1), the box body (1) is used to receive the whole; An exhaust pipe (2), the exhaust pipe (2) being used for conveying exhaust gas to the interior of the box body (1), the outer wall of the exhaust pipe (2) being fixedly connected to a limiting ring (4), the interior of the limiting ring (4) being rotatably connected to rotating rollers (5) arranged in a circular shape; An air outlet pipe (7), the outer wall of the air outlet pipe (7) is rotatably connected to a bracket (3), the bracket (3) is used to support the air outlet pipe (7), a through hole (10) is provided inside the air outlet pipe (7), the through hole (10) is provided inside the air outlet pipe (7) at an angle of 45°, the through hole (10) is used to guide the ejection angle of the gas to drive the air outlet pipe (7) to rotate, the outer wall of the exhaust pipe (2) is provided with a sealing component, the sealing component is used to seal between the exhaust pipe (2) and the air outlet pipe (7), the outer wall of the air outlet pipe (7) is fixedly connected to a guide plate (9), the guide plate (9) is used to centrally eject the exhaust gas, a limiting groove (8) is provided inside the air outlet pipe (7), the limiting groove (8) is engaged with the limiting ring (4); An extension pipe (19), wherein the outer wall of the extension pipe (19) is fixedly connected to a nozzle (20), and the nozzle (20) is used to spray water mist to increase the contact area with the exhaust gas; A partition (12), a second baffle (14) and a first baffle (11), wherein the partition (12) is fixedly connected to the inside of the box (1), the bottom of the first baffle (11) is fixedly connected to the inside of the box (1), an opening (13) is provided inside the partition (12), and the opening (13) is used for passing water flow, and the second baffle (14) is arranged in an up-and-down staggered manner inside the box (1) to increase the residence time of the exhaust gas in the box (1); A filter screen (16), wherein the filter screen (16) is used to further filter the exhaust gas, and the outer wall of the filter screen (16) is fixedly connected to a frame (15), and the frame (15) is used to support the filter screen (16); An exhaust pipe (17), wherein the exhaust pipe (17) is used to discharge the filtered exhaust gas.

2. The tail gas treatment device for plastic product processing according to claim 1, characterized in that: The sealing assembly comprises a sealing ring (6), the inner wall of the sealing ring (6) is fixedly connected to the outer wall of the exhaust pipe (2), and the outer wall of the sealing ring (6) is fitted to the inner wall of the exhaust pipe (7).

3. The tail gas treatment device for plastic product processing according to claim 1, characterized in that: One side of the bracket (3) is fixedly connected to the inner wall of the box (1), and the frame (15) is fixedly connected to the inside of the box (1).

4. The tail gas treatment device for plastic product processing according to claim 1, characterized in that: A water outlet pipe 1 (22) is fixedly connected inside the box body (1), one end of the water outlet pipe 1 (22) is fixedly connected to a circulation pump (23), the water outlet pipe 1 (22) is connected to the input end of the circulation pump (23), the output end of the circulation pump (23) is fixedly connected to a water outlet pipe 2 (24), and one end of the water outlet pipe 2 (24) is fixedly connected to a sealing cover (26).

5. The tail gas treatment device for plastic product processing according to claim 4, characterized in that: The sealing cover (26) is internally threadedly connected to a filter cartridge (25), the filter cartridge (25) is internally fixedly connected to a return pipe (21), one end of the return pipe (21) is fixedly connected to a connecting pipe (18), and one end of the connecting pipe (18) is fixedly connected to the interior of the extension pipe (19).

6. The tail gas treatment device for plastic product processing according to claim 5, characterized in that: A support ring (27) is fixedly connected inside the filter cartridge (25), a second filter screen (29) is arranged inside the filter cartridge (25), and a fixing ring (28) is fixedly connected to the top of the second filter screen (29).

7. The tail gas treatment device for plastic product processing according to claim 4, characterized in that: The bottom of the sealing cover (26) is fixedly connected to a support column 1 (30), and the interior of the support column 1 (30) is slidably connected to a support column 2 (31).

8. The tail gas treatment device for plastic product processing according to claim 7, characterized in that: A spring (32) is arranged inside the first support column (30), one end of the spring (32) is fixedly connected inside the first support column (30), and the other end of the spring (32) is fixedly connected to the top of the second support column (31).

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