A waste gas spraying device for waste gas treatment
By using a double-layer reaction chamber and rotary spray technology, the problem of insufficient waste gas treatment is solved, achieving efficient secondary treatment of waste gas and recycling of the treatment liquid, thus improving the waste gas purification effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG SUDE ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-03
AI Technical Summary
Existing waste gas scrubbing devices do not treat waste gas sufficiently and do not use enough treatment liquid, resulting in waste and low efficiency.
The system adopts a double-layer reaction chamber design to treat waste gas in stages. It also forms a rotating spray through nozzles and a fin structure to increase the gas-liquid contact area and uses bearings to reduce frictional resistance, thus achieving secondary treatment of the waste gas.
It improves the efficiency of waste gas treatment, reduces waste of treatment liquid, ensures the full removal of harmful components, and achieves efficient purification of waste gas.
Smart Images

Figure CN224442634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste gas spraying devices, and in particular to a waste gas spraying device for waste gas treatment. Background Technology
[0002] A waste gas spraying device is a device used to treat harmful waste gases generated in industrial production. (Announcement No.: CN222752878U). This utility model discloses a waste gas treatment spraying device, including a spray tower body. The spray tower body includes a main tower body, with an exhaust port at the top and a drain pipe at the bottom. A uniform spraying disc is located at the top interior of the main tower body, and a high-pressure pump is located on the side of the main tower body. Through the design of a cleaning and unblocking mechanism, when dirt accumulates and adheres to the filter plate surface, the motor drives the rotating rod and the active torsion gear to rotate. The active torsion gear meshes with the driven torsion gear, driving the rotating shaft and the cleaning brush to rotate. The cleaning brush rotates stably on the filter plate surface for cleaning, facilitating the removal of dirt from the filter plate surface and simplifying unblocking operations. When a large amount of dirt accumulates on the filter plate surface, the tower door can be opened to remove the dirt. During the next spraying operation, dirt is effectively filtered and the spray liquid falls rapidly. In practical applications, the device has several shortcomings. When in use, the waste gas is introduced into the interior of the tower. The single reaction chamber means that only one reaction can be carried out during use, resulting in insufficient waste gas treatment. At the same time, the single reaction chamber means that the treatment liquid can only be used once, leading to insufficient use of the treatment liquid and increased waste. Improvements are needed. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.
[0004] This utility model adopts the following technical solution: a waste gas spraying device for waste gas treatment, including a shell, an air inlet pipe connected to the surface of the shell, a ventilation pipe connected to the surface of the shell, an air pump connected inside the ventilation pipe, a water pipe connected to the surface of the shell, a first booster pump connected to the surface of the water pipe, a first spray pipe connected to one end of the water pipe, a second spray pipe connected to the surface of the shell, nozzles connected to the surfaces of both the first and second spray pipes, a first liquid storage tank connected to the other end of the water pipe, an exhaust pipe connected to the top of the shell, and a second liquid storage tank fixedly installed at the bottom of the shell.
[0005] Preferably, the internal space of the outer shell is divided into two sets of spaces by a first liquid storage tank and a second liquid storage tank. The vent pipe connects the two sets of spaces. The upper space is the first reaction chamber, and the lower space is the second reaction chamber. Here, the separation of the two sets of spaces allows for better treatment of the waste gas. The separation of the upper and lower spaces improves the efficiency of the device. At the same time, the waste gas is treated in stages, and the incompletely reacted liquid after the secondary reaction is put back into the primary treatment, reducing waste.
[0006] Preferably, the outer surface of the air intake pipe is threaded with a sleeve, and a filter layer is fixedly installed inside the sleeve. The two sides of the filter layer are made of non-woven fabric, and activated carbon particles are filled between the two sides of the non-woven fabric. Here, the use of the filter layer blocks solids in the exhaust gas, preventing the air intake pipe and liquid connection pipe from becoming clogged due to long-term use.
[0007] Preferably, one end of the second spray pipe is connected to a second booster pump. Here, the secondary treatment uses brand-new treatment fluid to allow the exhaust gas from the primary reaction to react more fully and to completely eliminate harmful components.
[0008] Preferably, the nozzle surface has densely arranged nozzle orifices, and a lever is rotatably connected to the outer surface of the nozzle. The lever surface has oblique nozzle orifices. Here, the densely arranged nozzle orifices can break the liquid into finer and more uniform droplets, forming a mist, which greatly increases the contact surface area between the liquid and the gas, significantly improving efficiency. The lever rotatably connected to the outer surface, especially the oblique nozzle orifices on its surface, generates a reaction force when the liquid is sprayed, driving the lever to rotate. The rotating lever drives the sprayed droplets to rotate, forming a rotating spray field.
[0009] Preferably, the paddle is fixedly mounted on a bearing made of a corrosion-resistant material. Here, using a bearing to support the paddle significantly reduces rotational friction resistance, ensuring that the paddle can rotate smoothly and stably for a long time under the drive of fluid reaction force. This is a key mechanical guarantee for achieving efficient rotary spraying. The reliable operation of the corrosion-resistant bearing is the foundation for the long-term stability of the rotary spraying effect and its beneficial effects such as enhanced mixing and expanded coverage.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] 1. In this utility model, by setting up a No. 1 reaction chamber, a No. 2 reaction chamber, a No. 1 spray pipe, a No. 2 spray pipe, a No. 1 storage tank, a No. 2 storage tank, a No. 1 booster pump, a No. 2 booster pump, and a liquid connecting pipe, the low-concentration solution that has been reacted in the No. 2 reaction chamber is recycled through the No. 1 booster pump and the liquid connecting pipe, so that the solution reacts fully and waste is reduced. At the same time, the waste gas is treated twice, so that harmful gases are removed more thoroughly.
[0012] 2. In this utility model, by setting a nozzle, nozzle, bearing and paddle structure, the high-speed solution sprayed from the nozzle nozzle rotates when it passes through the inclined paddle nozzle. The bearing reduces the friction force on the paddle when it rotates. Through these mechanisms, the solution sprayed from the nozzle is sprayed out in the form of small water droplets, which increases the contact area between the solution and the organic waste gas, making the reaction more complete. Attached Figure Description
[0013] Figure 1 This utility model provides a schematic diagram of a waste gas spraying device for waste gas treatment;
[0014] Figure 2 This utility model provides a cross-sectional schematic diagram of a waste gas spraying device for waste gas treatment;
[0015] Figure 3 This utility model provides a schematic diagram of the nozzle of a waste gas spraying device for waste gas treatment;
[0016] Figure 4 A cross-sectional schematic diagram of the nozzle of a waste gas spraying device for waste gas treatment is provided for this utility model;
[0017] Figure 5 This invention provides a schematic diagram of the filter layer of a waste gas spraying device for waste gas treatment.
[0018] Legend:
[0019] 1. Outer shell; 2. Air inlet pipe; 3. Vent pipe; 4. Water pipe; 5. No. 1 booster pump; 6. No. 1 spray pipe; 7. Nozzle; 8. No. 1 storage tank; 9. Exhaust pipe; 10. No. 2 storage tank; 11. No. 2 spray pipe; 12. No. 1 reaction chamber; 13. No. 2 reaction chamber; 14. Bearing; 15. Filter layer; 16. No. 2 booster pump; 17. Nozzle; 18. Paddle; 19. Air pump; 20. Sleeve. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1
[0023] Please see Figure 1-2 This utility model provides a technical solution: a waste gas spraying device for waste gas treatment, including a shell 1, an air inlet pipe 2 connected to the surface of the shell 1, a sleeve 20 threadedly connected to the outer surface of the air inlet pipe 2, and a filter layer 15 fixedly installed inside the sleeve 20. The filter layer 15 can be installed by rotating the sleeve 20 after aligning the threads on the surface of the sleeve 20 with the threads on the surface of the air inlet pipe 2, and disassembled by rotating the sleeve 20 in the opposite direction, making the filter layer 15 easier and quicker to replace. The two sides of the filter layer 15 are made of non-woven fabric, and activated carbon particles are filled between the two sides of the non-woven fabric. The use of the filter layer 15 blocks solids in the waste gas and initially absorbs some hydrogen sulfide, nitrogen oxides, and sulfur oxides, reducing the difficulty of subsequent treatment and preventing blockage of the air inlet pipe 2 and liquid connection pipe due to long-term use. A ventilation pipe 3 is connected to the surface of the shell 1, and an air pump 19 is connected inside the ventilation pipe 3. A water pipe 4 is connected to the surface of the shell 1, and the surface of the water pipe 4 is connected to... There is a booster pump 5. One end of the water pipe 4 is connected to a spray pipe 6. The surface of the spray pipe 6 is connected to a nozzle 7. The other end of the water pipe 4 is connected to a storage tank 8. The top of the outer shell 1 is connected to an exhaust pipe 9. The bottom of the outer shell 1 is fixedly installed with a storage tank 10. The surface of the outer shell 1 is connected to a spray pipe 11. One end of the spray pipe 11 is connected to a booster pump 16. The secondary treatment uses a brand-new treatment liquid to make the exhaust gas after the primary reaction react more fully and to fully eliminate harmful components. The internal space of the outer shell 1 is divided into two sets of spaces by the storage tank 8 and the storage tank 10. The vent pipe 3 connects the two sets of spaces. The upper space is the primary reaction chamber 12 and the lower space is the secondary reaction chamber 13. The separation of the two sets of spaces allows the exhaust gas to be treated better. The separation of the upper and lower spaces improves the efficiency of the device. At the same time, the exhaust gas is treated in stages. The treatment liquid that is not fully reacted after the secondary reaction is put back into the primary treatment, reducing waste.
[0024] Example 2
[0025] Please see Figure 3-4The nozzle 7 has densely arranged nozzles 17 on its surface. A lever 18 is rotatably connected to the outer surface of the nozzle 7. The lever 18 has oblique nozzles 17 on its surface. The densely arranged nozzles 17 can break the liquid into finer and more uniform droplets, forming a mist, which greatly increases the contact surface area between the liquid and the gas and significantly improves efficiency. The lever 18 rotatably connected to the outer surface, especially the oblique nozzles 17 on its surface, will generate a reaction force when the liquid is sprayed, driving the lever 18 to rotate. The rotating lever 18 drives the sprayed droplets to rotate, forming a better rotating spray field. The lever 18 is fixedly installed on the bearing 14. The bearing 14 is made of corrosion-resistant material. Using the bearing 14 to support the lever 18 greatly reduces the rotational friction resistance and ensures that the lever 18 can rotate smoothly and stably for a long time under the drive of the fluid reaction force. It is the key mechanical guarantee for achieving efficient rotating spray. The reliable operation of the corrosion-resistant bearing 14 is the foundation for the long-term stability of the rotating spray effect and the beneficial effects such as enhanced mixing and expanded coverage.
[0026] Working Principle: The exhaust gas first enters through the inlet pipe 2, where it passes through the internal filter layer 15, intercepting solid particles and some hydrogen sulfide, nitrogen oxides, and sulfur oxides to prevent subsequent blockage. The filtered exhaust gas then enters the second reaction chamber 13. Here, the second booster pump 16 pumps the treatment liquid stored in the first storage tank 8 into the second spray pipe 11, where it is atomized and sprayed out through a specially designed rotating nozzle 7. The nozzle 7, with its surface densely covered with nozzles 17, breaks the liquid into fine droplets. Simultaneously, the liquid jet drives the deflector 18, which is angled towards the nozzles 17, to rotate, forming a rotating spray field. This greatly increases the gas-liquid contact area and mixing intensity, allowing the exhaust gas to fully contact the droplets for primary reaction absorption. Subsequently, the pre-treated exhaust gas rises through the vent pipe 3 to the first reaction chamber 12. Here, the first booster pump 5 pumps fresh treatment liquid into the first spray pipe 6, which again forms ultra-fine atomized droplets and a rotating spray through the high-efficiency rotating nozzle 7. Here, the exhaust gas comes into countercurrent contact with the fresh treatment liquid for deep reaction absorption, ensuring that harmful components are fully removed. The clean gas, after undergoing deep purification, is finally discharged from the exhaust pipe 9 at the top. Meanwhile, the liquid circulation path is as follows: the treated liquid after use in the upper reaction chamber 12 flows downward into the second storage tank 10 for storage, serving as the primary treated liquid source for the lower reaction chamber 13, thus achieving resource reuse; the waste liquid after use in the lower reaction chamber 13 is finally collected in the second storage tank 10 at the bottom of the device.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A waste gas spraying device for waste gas treatment, comprising a housing (1), characterized in that: The surface of the outer shell (1) is connected to an air inlet pipe (2), the surface of the outer shell (1) is connected to a vent pipe (3), the inside of the vent pipe (3) is connected to an air pump (19), the surface of the outer shell (1) is connected to a water pipe (4), the surface of the water pipe (4) is connected to a first booster pump (5), one end of the water pipe (4) is connected to a first spray pipe (6), the surface of the outer shell (1) is connected to a second spray pipe (11), the surfaces of the first spray pipe (6) and the second spray pipe (11) are both connected to nozzles (7), the other end of the water pipe (4) is connected to a first liquid storage tank (8), the top of the outer shell (1) is connected to an exhaust pipe (9), and the bottom of the outer shell (1) is fixedly installed with a second liquid storage tank (10).
2. The exhaust treatment exhaust spray device of claim 1, wherein: The internal space of the outer shell (1) is divided into a first reaction chamber (12) and a second reaction chamber (13) by a first liquid storage tank (8) and a second liquid storage tank (10).
3. The exhaust treatment exhaust spray device of claim 1, wherein: The outer surface of the air intake pipe (2) is threaded with a sleeve (20), and a filter layer (15) is fixedly installed inside the sleeve (20). The two sides of the filter layer (15) are made of non-woven fabric, and activated carbon particles are filled between the two sides of the non-woven fabric.
4. The exhaust treatment exhaust spray device of claim 1, wherein: One end of the second spray pipe (11) is connected to the second booster pump (16).
5. The exhaust treatment exhaust spray device of claim 1, wherein: The nozzle (7) has densely arranged nozzles (17) on its surface, and a lever (18) is rotatably connected to the outer surface of the nozzle (7). The lever (18) has oblique nozzles (17) on its surface.
6. The exhaust treatment exhaust spray device of claim 5, wherein: The paddle (18) is fixedly mounted on the bearing (14), which is made of corrosion-resistant material.