Purification equipment for dust-containing VOCs (Volatile Organic Compounds) pollutants

By combining the conversion device with the circumferential array of connecting pipes and the annular exhaust pipe, and using screw conveyor separation technology, the problems of dust blockage and unstable gas kinetic energy are solved, achieving efficient dust separation and VOCs purification, and improving the stability and purification effect of the equipment.

CN224126949UActive Publication Date: 2026-04-17NINGBO LIJING ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO LIJING ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-02-24
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing dust-laden VOCs pollutant purification equipment cannot effectively prevent dust from falling back into the exhaust port, causing blockages, and the gas kinetic energy conversion is unstable, generating noise and vibration.

Method used

The design employs a collection and conversion device with a circumferential array of connecting pipes and an annular exhaust pipe, combined with the screw conveyor separation technology in the dust removal mechanism, to ensure that dust is separated and collected, and that the gas and purification liquid react evenly, avoiding blockage and stabilizing the gas kinetic energy.

Benefits of technology

This effectively prevents dust from falling back into the exhaust port, reduces noise and vibration, and improves purification efficiency, equipment reliability, and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of purification equipment, and discloses dust-containing VOCs (volatile organic compounds) pollutant purification equipment which comprises a purification reaction tank, a dust removal mechanism is fixedly mounted below the outer surface of the right side of the purification reaction tank, and an annular exhaust pipe is fixedly mounted below the inner wall of the purification reaction tank. Connecting pipes are fixedly installed on the inner side of the annular exhaust pipe and are in a circumferential array shape. According to the utility model, the collection conversion device is connected with the connecting pipes in the shape of the circumferential array, and the connecting pipes are communicated with the annular exhaust pipe; when the device is used, bubbles in the collection conversion device slowly rise upwards from the bottom of the purification reaction tank along with a first exhaust port formed in the bottom of a connecting pipe and a second exhaust port formed in the bottom of an annular exhaust pipe and then uniformly react with purification liquid sprayed out of the purification device. And dust in the VOCs can be effectively prevented from falling back to the exhaust port again to cause blockage.
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Description

Technical Field

[0001] This utility model relates to the field of purification equipment technology, and more specifically, to a purification equipment for dust-containing VOCs pollutants. Background Technology

[0002] Dust-containing VOCs are common compound pollutants emitted during industrial production processes. In many industries such as chemical, coating, printing, pharmaceutical, and garbage disposal, a large amount of VOCs are generated during the processing of raw materials, manufacturing and handling of products, along with the release of dust particles. If these pollutants are emitted directly without effective treatment, they will cause serious harm to the atmospheric environment, such as forming photochemical smog and aggravating haze pollution. They may also threaten human health and affect the functions of the respiratory and nervous systems.

[0003] Existing purification equipment for dust-laden VOCs pollutants cannot effectively prevent dust from falling back into the exhaust port of the pipes during use. At the same time, it cannot ensure a relatively stable conversion of the kinetic energy of the gas, increasing noise and vibration caused by airflow impact, turbulence and other factors. Therefore, it needs to be improved and optimized. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a purification device for dust-containing VOCs pollutants, which has the advantage of avoiding exhaust port blockage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a purification device for VOCs pollutants containing dust, comprising a purification reaction tank, a dust removal mechanism fixedly installed below the right outer surface of the purification reaction tank, an annular exhaust pipe fixedly installed below the inner wall of the purification reaction tank, a connecting pipe fixedly installed on the inner side of the annular exhaust pipe in a circumferential array, one end of the connecting pipe being fixedly connected to the annular exhaust pipe, and a collection and conversion device fixedly installed at the other end of the connecting pipe, with the connecting pipe extending into the collection and conversion device, an airtight cover fixedly installed at the bottom of the collection and conversion device, a first exhaust port opening on the bottom side of the outer surface of the connecting pipe in a linear array, a conveying pipe fixedly connected to the outer surface of the collection and conversion device, with one end of the conveying pipe extending into the collection and conversion device, a dust removal mechanism fixedly installed on the right side of the outer surface of the purification reaction tank, and the other end of the conveying pipe penetrating the annular exhaust pipe and the purification reaction tank extending into the dust removal mechanism, a second exhaust port opening on the bottom side of the annular exhaust pipe in a circumferential array, and a purification device fixedly installed on the left outer surface of the purification reaction tank.

[0006] As a preferred embodiment of this utility model, the dust removal mechanism includes a fixed bracket fixedly installed below the right outer surface of the purification reaction tank, a dust removal tank fixedly installed on the outer surface of the fixed bracket, a bracket fixedly installed on the top of the dust removal tank, a motor fixedly installed on the inner side of the bracket with the motor's output shaft extending into the interior of the dust removal tank, a rotating rod fixedly connected to the end of the motor's output shaft, an auger fixedly sleeved on the outer surface of the rotating rod, a first collection box fixedly installed at the bottom of the dust removal tank and the dust removal tank and the first collection box communicating with each other, a conveying pipe extending to a position above the auger, and an air inlet pipe fixedly connected below the right outer surface of the dust removal tank with the air inlet pipe extending into the interior of the dust removal tank.

[0007] As a preferred embodiment of this utility model, the purification device includes a purification liquid storage tank fixedly installed on the left outer surface of the purification reaction tank, a base fixedly installed inside the purification liquid storage tank, a water pump fixedly installed on the top of the base, an extension connecting pipe fixedly connected inside the water pump, a transmission pipe fixedly connected to the bottom outer surface of the extension connecting pipe and the transmission pipe being in a linear array, and a nozzle fixedly installed on the bottom side of the transmission pipe.

[0008] As a preferred embodiment of the present invention, a second collection box is fixedly installed at the bottom of the purification reaction tank, a second discharge pipe is fixedly installed at the bottom of the second collection box, and the second collection box and the second discharge pipe are interconnected. A second valve is threadedly connected to the inside of the second discharge pipe.

[0009] As a preferred embodiment of the present invention, a first discharge pipe is fixedly installed at the bottom of the first collection box and the first collection box and the first discharge pipe are interconnected, and a first valve is threadedly connected to the inside of the first discharge pipe.

[0010] As a preferred embodiment of this utility model, an exhaust pipe is fixedly connected to the top of the purification reaction tank, and the exhaust pipe is curved.

[0011] As a preferred embodiment of this utility model, an annular fixing block is fixedly sleeved on the outer surface of the purification reaction tank, and a support frame is fixedly installed at the bottom of the annular fixing block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model connects a collection and conversion device to a circumferentially arrayed connecting pipe, which in turn is connected to an annular exhaust pipe. This allows the bubbles inside the collection and conversion device to slowly rise from the bottom of the purification reaction tank through the first exhaust port at the bottom of the connecting pipe and the second exhaust port at the bottom of the annular exhaust pipe, and then react evenly with the purification liquid sprayed from the purification device. Compared with traditional devices, this device can effectively prevent dust in VOCs from falling back to the exhaust port and causing blockage. At the same time, it can make the kinetic energy conversion of the gas relatively stable, reducing noise and vibration caused by airflow impact, turbulence and other factors, thus making the purification more efficient.

[0014] This invention uses the output shaft of a motor to drive a rotating rod, which in turn drives an auger. The auger pulls dust-laden pollutants along the wall of the dust collection tank. Under centrifugal force, the dust is thrown against the inner wall of the tank and then falls into the first collection box under gravity. Because the conveying pipe is higher than the auger's rotation trajectory, the dust is not rotated into the conveying pipe. The separated VOCs pollutants enter the conveying pipe along with the auger's rotation. Compared to traditional devices, this invention achieves more efficient dust separation, enabling subsequent VOCs purification devices to purify more effectively, while also improving the reliability and stability of the entire purification equipment. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the collection and conversion device of this utility model;

[0018] Figure 4 This is a schematic diagram of the purification liquid storage tank structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the purification reaction tank of this utility model.

[0020] In the diagram: 1. Purification reaction tank; 2. Dust collector; 3. Support frame; 4. Motor; 5. Rotating rod; 6. Screwdriver; 7. First collection box; 8. First discharge pipe; 9. First valve; 10. Air inlet pipe; 11. Conveying pipe; 12. Annular exhaust pipe; 13. Connecting pipe; 14. First exhaust port; 15. Second exhaust port; 16. Collection and conversion device; 17. Airtight cover; 18. Purified liquid storage tank; 19. Extension connecting pipe; 20. Transmission pipe; 21. Nozzle; 22. Second collection box; 23. Second discharge pipe; 24. Second valve; 25. Exhaust pipe; 26. Support frame; 27. Base; 28. Water pump; 29. ​​Fixed bracket. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 5 As shown, this utility model provides a purification device for VOCs pollutants containing dust, including a purification reaction tank 1. A dust removal mechanism is fixedly installed below the right outer surface of the purification reaction tank 1. An annular exhaust pipe 12 is fixedly installed below the inner wall of the purification reaction tank 1. A connecting pipe 13 is fixedly installed inside the annular exhaust pipe 12, and the connecting pipe 13 is arranged in a circumferential array. One end of the connecting pipe 13 is fixedly connected to the annular exhaust pipe 12, and the other end of the connecting pipe 13 is fixedly installed with a collection and conversion device 16, and the connecting pipe 13 extends into the collection and conversion device 16. The bottom of the collection and conversion device 16 is fixedly installed with... The device is equipped with an airtight cover 17. The bottom side of the outer surface of the connecting pipe 13 has a first exhaust port 14 in a linear array. The outer surface of the collection and conversion device 16 is fixedly connected to a conveying pipe 11, and one end of the conveying pipe 11 extends into the inside of the collection and conversion device 16. The right side of the outer surface of the purification reaction tank 1 is fixedly installed with a dust removal mechanism, and the other end of the conveying pipe 11 passes through the annular exhaust pipe 12 and the purification reaction tank 1 and extends into the dust removal mechanism. The bottom side of the annular exhaust pipe 12 has a second exhaust port 15 in a circumferential array. The outer surface of the left side of the purification reaction tank 1 is fixedly installed with a purification device.

[0023] When the staff removes dust-containing VOCs pollutants through the dust removal mechanism, the generated bubbles are then transported to the collection and conversion device 16 through the conveying pipe 11. The collection and conversion device 16 is then connected to the connecting pipe 13, which is arranged in a circular array, and the connecting pipe 13 is also connected to the annular exhaust pipe 12. This causes the bubbles inside the collection and conversion device 16 to slowly rise from the bottom of the purification reaction tank 1 through the first exhaust port 14 at the bottom of the connecting pipe 13 and the second exhaust port 15 at the bottom of the annular exhaust pipe 12, and then react evenly with the purification liquid sprayed out by the purification device.

[0024] The collection and conversion device 16 is connected to the connecting pipe 13 arranged in a circular array, and the connecting pipe 13 is also connected to the annular exhaust pipe 12. This allows the bubbles inside the collection and conversion device 16 to slowly rise from the bottom of the purification reaction tank 1 through the first exhaust port 14 at the bottom of the connecting pipe 13 and the second exhaust port 15 at the bottom of the annular exhaust pipe 12, and then react evenly with the purification liquid sprayed from the purification device. Compared with traditional devices, this device can effectively prevent dust in VOCs from falling back to the exhaust port and causing blockage. At the same time, it can make the kinetic energy conversion of the gas relatively stable, and reduce the noise and vibration caused by airflow impact, turbulence and other factors, thereby making the purification more efficient.

[0025] The dust removal mechanism includes a fixed bracket 29 fixedly installed on the lower right outer surface of the purification reaction tank 1, a dust removal tank 2 fixedly installed on the outer surface of the fixed bracket 29, a bracket 3 fixedly installed on the top of the dust removal tank 2, a motor 4 fixedly installed on the inner side of the bracket 3, and the output shaft of the motor 4 extending into the interior of the dust removal tank 2. A rotating rod 5 is fixedly connected to the end of the output shaft of the motor 4, and an auger 6 is fixedly sleeved on the outer surface of the rotating rod 5. A first collection box 7 is fixedly installed at the bottom of the dust removal tank 2 and the dust removal tank 2 and the first collection box 7 are interconnected. A conveying pipe 11 extends to a position above the auger 6. An air inlet pipe 10 is fixedly connected to the lower right outer surface of the dust removal tank 2 and extends into the interior of the dust removal tank 2.

[0026] When the staff connects the air inlet pipe 10 to the exhaust fan, the dust-laden VOCs pollutants enter the dust collection tank 2. At the same time, the motor 4 is started, and the output shaft of the motor 4 will drive the rotating rod 5 to start rotating. When the rotating rod 5 rotates, it will drive the auger 6 to start rotating. At this time, the auger 6 will rotate the dust-laden pollutants along the wall of the dust collection tank 2. Under the action of centrifugal force, the dust is thrown towards the inner wall of the dust collection tank 2, and then falls into the first collection box 7 along the wall under the action of gravity. Since the conveying pipe 11 is higher than the rotation trajectory of the auger 6, the dust will not be rotated into the conveying pipe 11. The separated VOCs pollutants will enter the interior of the conveying pipe 11 with the rotation of the auger 6.

[0027] The output shaft of motor 4 will drive the rotating rod 5 to start rotating. When the rotating rod 5 rotates, it will drive the auger 6 to start rotating. At this time, the auger 6 will rotate along the wall of the dust collection tank 2, and under the action of centrifugal force, the dust will be thrown towards the inner wall of the dust collection tank 2. Then, under the action of gravity, it will fall into the first collection box 7 along the wall. Since the conveying pipe 11 is higher than the rotation trajectory of the auger 6, the dust will not be rotated into the conveying pipe 11. The separated VOCs pollutants will enter the interior of the conveying pipe 11 with the rotation of the auger 6. Compared with the traditional device, this device can achieve more efficient dust separation, which can effectively make the subsequent VOCs purification device more efficient, and at the same time improve the reliability and stability of the entire purification equipment.

[0028] The purification device includes a purification reaction tank 1 with a purification liquid storage tank 18 fixedly installed on the left outer surface. A base 27 is fixedly installed inside the purification liquid storage tank 18. A water pump 28 is fixedly installed on the top of the base 27. An extension connecting pipe 19 is fixedly connected inside the water pump 28. A transmission pipe 20 is fixedly connected to the bottom outer surface of the extension connecting pipe 19 and the transmission pipe 20 is arranged in a linear array. A nozzle 21 is fixedly installed on the bottom side of the transmission pipe 20.

[0029] The purification liquid in the purification liquid storage tank 18 is transferred to the transmission pipe 20 through the extension connecting pipe 19 by the water pump 28. When it is transferred to the transmission pipe 20, it is sprayed into the purification reaction tank 1 through the nozzle 21, thereby effectively realizing the full reaction between the purification liquid and VOCs pollutants.

[0030] The bottom of the purification reaction tank 1 is fixedly installed with a second collection box 22, and the bottom of the second collection box 22 is fixedly installed with a second discharge pipe 23. The second collection box 22 and the second discharge pipe 23 are connected to each other, and the second discharge pipe 23 is internally threaded with a second valve 24.

[0031] The second collection box 22 and the second discharge pipe 23 are interconnected, and the second discharge pipe 23 is internally threaded with a second valve 24, which can effectively collect pollutants after the reaction.

[0032] The first collection box 7 is fixedly installed with a first discharge pipe 8 at its bottom, and the first collection box 7 and the first discharge pipe 8 are interconnected. The first discharge pipe 8 is internally threaded with a first valve 9.

[0033] The first valve 9 is connected to the internal thread of the first discharge pipe 8, which can effectively and quickly discharge the dust inside the dust removal mechanism.

[0034] The top of the purification reaction tank 1 is fixedly connected to an exhaust pipe 25, and the exhaust pipe 25 is curved.

[0035] An exhaust pipe 25 is fixedly connected to the top of the purification reaction tank 1 and is curved to prevent external impurities from easily entering the interior of the purification reaction tank 1.

[0036] Among them, an annular fixing block is fixedly sleeved on the outer surface of the purification reaction tank 1, and a support frame 26 is fixedly installed at the bottom of the annular fixing block.

[0037] The support frame 26 is fixedly installed at the bottom of the annular fixing block, which can effectively enhance the stability of the entire device and make the purification more efficient.

[0038] Working principle and usage process of this utility model:

[0039] When the staff removes dust-containing VOCs pollutants through the dust removal mechanism, the generated bubbles are then transported to the collection and conversion device 16 through the conveying pipe 11. The collection and conversion device 16 is then connected to the connecting pipe 13, which is arranged in a circular array, and the connecting pipe 13 is also connected to the annular exhaust pipe 12. This causes the bubbles inside the collection and conversion device 16 to slowly rise from the bottom of the purification reaction tank 1 through the first exhaust port 14 at the bottom of the connecting pipe 13 and the second exhaust port 15 at the bottom of the annular exhaust pipe 12, and then react evenly with the purification liquid sprayed out by the purification device.

[0040] When the staff connects the air inlet pipe 10 to the exhaust fan, the dust-laden VOCs pollutants enter the dust collection tank 2. At the same time, the motor 4 is started, and the output shaft of the motor 4 will drive the rotating rod 5 to start rotating. When the rotating rod 5 rotates, it will drive the auger 6 to start rotating. At this time, the auger 6 will rotate the dust-laden pollutants along the wall of the dust collection tank 2. Under the action of centrifugal force, the dust is thrown towards the inner wall of the dust collection tank 2, and then falls into the first collection box 7 along the wall under the action of gravity. Since the conveying pipe 11 is higher than the rotation trajectory of the auger 6, the dust will not be rotated into the conveying pipe 11. The separated VOCs pollutants will enter the interior of the conveying pipe 11 with the rotation of the auger 6.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for purifying dust-containing VOCs pollutants, comprising a purification reaction tank (1), characterized in that: A dust removal mechanism is fixedly installed below the right outer surface of the purification reaction tank (1). An annular exhaust pipe (12) is fixedly installed below the inner wall of the purification reaction tank (1). A connecting pipe (13) is fixedly installed inside the annular exhaust pipe (12), and the connecting pipe (13) is arranged in a circumferential array. One end of the connecting pipe (13) is fixedly connected to the annular exhaust pipe (12). A collection and conversion device (16) is fixedly installed at the other end of the connecting pipe (13), and the connecting pipe (13) extends into the inside of the collection and conversion device (16). An airtight cover (17) is fixedly installed at the bottom of the collection and conversion device (16). The outer surface of the container has a first exhaust port (14) on the bottom side and is arranged in a linear array. The outer surface of the collection and conversion device (16) is fixedly connected to a conveying pipe (11) and one end of the conveying pipe (11) extends into the inside of the collection and conversion device (16). The outer surface of the purification reaction tank (1) is fixedly installed with a dust removal mechanism on the right side and the other end of the conveying pipe (11) passes through the annular exhaust pipe (12) and the purification reaction tank (1) and extends into the dust removal mechanism. The bottom side of the annular exhaust pipe (12) has a second exhaust port (15) and the second exhaust port (15) is arranged in a circumferential array. The outer surface of the left side of the purification reaction tank (1) is fixedly installed with a purification device.

2. The apparatus for purifying dusted VOCs pollutants according to claim 1, characterized in that: The dust removal mechanism includes a fixed bracket (29) fixedly installed below the right outer surface of the purification reaction tank (1), a dust removal tank (2) fixedly installed on the outer surface of the fixed bracket (29), a bracket (3) fixedly installed on the top of the dust removal tank (2), a motor (4) fixedly installed on the inner side of the bracket (3) and the output shaft of the motor (4) extends into the interior of the dust removal tank (2), a rotating rod (5) fixedly connected to the end of the output shaft of the motor (4), an auger (6) fixedly sleeved on the outer surface of the rotating rod (5), a first collection box (7) fixedly installed at the bottom of the dust removal tank (2) and the dust removal tank (2) and the first collection box (7) are interconnected, a conveying pipe (11) extends to a position above the auger (6), an air inlet pipe (10) fixedly connected below the right outer surface of the dust removal tank (2) and the air inlet pipe (10) extends into the interior of the dust removal tank (2).

3. The apparatus for purifying dusted VOCs pollutants according to claim 1, characterized in that: The purification device includes a purification reaction tank (1) with a purification liquid storage tank (18) fixedly installed on the left outer surface. A base (27) is fixedly installed inside the purification liquid storage tank (18). A water pump (28) is fixedly installed on the top of the base (27). An extension connecting pipe (19) is fixedly connected inside the water pump (28). A transmission pipe (20) is fixedly connected to the bottom outer surface of the extension connecting pipe (19), and the transmission pipe (20) is in a linear array. A nozzle (21) is fixedly installed on the bottom side of the transmission pipe (20).

4. The apparatus for purification of dusted VOCs pollutants according to claim 1, characterized in that: The bottom of the purification reaction tank (1) is fixedly installed with a second collection box (22), and the bottom of the second collection box (22) is fixedly installed with a second discharge pipe (23). The second collection box (22) and the second discharge pipe (23) are connected to each other. The second discharge pipe (23) is internally threaded with a second valve (24).

5. The apparatus for purification of dusted VOCs pollutants according to claim 2, characterized in that: The bottom of the first collection box (7) is fixedly installed with a first discharge pipe (8) and the first collection box (7) and the first discharge pipe (8) are connected to each other. The first discharge pipe (8) is internally threaded with a first valve (9).

6. The device for purifying dusted VOCs pollutants according to claim 1, characterized in that: The top of the purification reaction tank (1) is fixedly connected to an exhaust pipe (25), and the exhaust pipe (25) is curved.

7. The device for purifying dusted VOCs pollutants according to claim 1, characterized in that: An annular fixing block is fixedly sleeved on the outer surface of the purification reaction tank (1), and a support frame (26) is fixedly installed at the bottom of the annular fixing block.