A multi-stage spray device for treating waste gas

Abstract

This utility model discloses a multi-stage spray device for treating waste gas, comprising: a spray tank and auxiliary components. Two partitions are fixedly connected to the inner surface of the spray tank, and air guide columns are fixedly connected to the upper surfaces of both partitions. A waterproof exhaust fan is installed inside each air guide column, and support columns are fixedly connected around the upper surface of each air guide column. A water guide plate is fixedly connected to the upper surface of each support column. By cooperating with the two partitions inside the spray tank and the air guide columns, the flow path of the waste gas is cleverly extended, increasing its residence time within the device. This allows the waste gas more time to fully contact and react with the spray water. The waterproof exhaust fan inside the air guide column provides stable power for the waste gas flow, ensuring rapid and smooth transmission of the waste gas and preventing blockages. The synergy of these two components significantly improves treatment efficiency. The radial opening design of the air guide columns from bottom to top ensures that the waste gas diffuses and fully contacts the spray water, enhancing the purification effect.

Description

Technical Field

[0001] This utility model relates to the field of waste gas purification technology, and in particular to a multi-stage spray device for treating waste gas. Background Technology

[0002] Early waste gas treatment technologies, such as simple adsorption and combustion methods, while capable of treating some pollutants in waste gas to a certain extent, suffered from low treatment efficiency, narrow applicability, high operating costs, and a tendency to generate secondary pollution. For example, adsorption is effective for treating low-concentration waste gas, but its capacity for treating high-concentration or high-flow-rate waste gas is limited, and the adsorbent needs to be replaced regularly, resulting in high costs. Combustion, while capable of completely decomposing organic matter, is energy-intensive, ineffective for treating some non-combustible pollutants, and may also produce secondary pollutants such as nitrogen oxides. Spraying technology, which utilizes the contact between liquid and gas to achieve mass transfer and chemical reactions, has gradually gained widespread application in the field of waste gas treatment. Early spraying devices were relatively simple, typically with only one stage of spraying, and their treatment effect on waste gas was limited. With technological advancements, it was discovered that increasing the number of spray stages could significantly improve gas-liquid contact efficiency and extend gas-liquid contact time, thereby achieving deep treatment of complex pollutants. Multi-stage spray systems can target different types of pollutants by using different spray liquids in different spray stages and adjusting spray parameters, thereby improving the efficiency and effectiveness of waste gas treatment.

[0003] Conventional multi-stage spray systems for treating waste gas have extremely poor adaptability to changes in operating conditions. When production load increases and the amount of waste gas rises, the system may completely lose its processing capacity due to uncontrolled airflow, resulting in reduced efficiency or even malfunction. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage spray device for treating waste gas. By combining two baffles inside the spray tank with the air guide column, the flow path of the waste gas is cleverly extended, increasing its residence time in the device. This allows the waste gas more time to fully contact and react with the spray water. The waterproof exhaust fan inside the air guide column provides stable power for the flow of waste gas, ensuring rapid and smooth transmission of the waste gas and avoiding blockage. The two work together to significantly improve the treatment efficiency. Combined with the radial opening design of the air guide column from bottom to top, the waste gas diffuses and fully contacts the spray water, enhancing the purification effect.

[0005] To achieve the above objectives, a multi-stage spray device for treating waste gas is provided, comprising: a spray tank and auxiliary components. Two baffles are fixedly connected to the inner surface of the spray tank, and air guide columns are fixedly connected to the upper surfaces of both baffles. A waterproof exhaust fan is installed inside each air guide column, and support columns are fixedly connected around the upper surface of each air guide column. A water guide plate is fixedly connected to the upper surface of each support column. By using the baffles and air guide columns to extend the waste gas path, the exhaust fan provides power, and the support columns stabilize the water guide plate, thereby improving treatment efficiency and stability.

[0006] Furthermore, the interior of the waterproof exhaust fan is connected to the upper and lower surfaces of the partition, and the dimensions of the air guide column and the water guide plate are correspondingly set. This allows the exhaust gas to flow and be treated across areas, and the water guide plate precisely guides the flow, enhancing the contact effect between the spray and the exhaust gas.

[0007] Furthermore, the air guide column extends radially from bottom to top in an open pattern, and the size of the waterproof exhaust fan corresponds to the size of the air guide column. This facilitates the diffusion of exhaust gas, and with a suitable exhaust fan, ensures smooth airflow and improves purification efficiency.

[0008] Furthermore, there are three air guide columns, and their positions are staggered with those of the baffles. The three air guide columns work together, and their staggered arrangement extends the exhaust gas path, enhancing the multi-stage treatment effect.

[0009] Furthermore, the auxiliary components are located inside the spray tank. These components include observation windows, exhaust pipes, support legs, a first connecting pipe and a second connecting pipe for draining water, a controller, an exhaust pipe, a water inlet pipe, branch pipes, and large-angle spray heads. The exhaust pipe and four support legs are fixedly connected to the lower surface of the spray tank, with the four support legs distributed around the outer surface of the exhaust pipe. Three drain pipes are fixedly connected to the side wall of the spray tank, with one end of each drain pipe fixedly connected to the first connecting pipe. A second connecting pipe is fixedly connected to the end of the spray tank away from the drain pipes. Three water inlet pipes are fixedly connected to the second connecting pipes near the spray tank. Branch pipes are fixedly connected to the outer surface of each water inlet pipe, and two large-angle spray heads are symmetrically arranged on the lower surface of each branch pipe. The controller and an exhaust pipe are fixedly connected to the upper surface of the spray tank, with the interior of the exhaust pipe communicating with the interior of the spray tank. Three observation windows are provided on the front surface of the spray tank. Each auxiliary component performs its specific function, realizing the introduction, treatment, and discharge of exhaust gas and the circulation of water, facilitating monitoring and operation.

[0010] Furthermore, the interior of the exhaust pipe is connected to the interior of the waterproof exhaust fan. The airflow direction of the waterproof exhaust fan is vertically guided from bottom to top. The end of the drain pipe away from the first connecting pipe is fixedly connected to the partition, and their positions are staggered. This ensures efficient introduction and treatment of exhaust gas, orderly discharge of wastewater, and stable operation of the device.

[0011] Furthermore, the branch pipe is located below the partition, and its position is parallel to that of the drain pipe. The observation window is also parallel to the position of the water guide plate. This ensures that water flow distribution and sewage discharge do not interfere with each other, facilitating observation of the operating status of the core treatment area.

[0012] The above-mentioned solution has the following beneficial effects: This utility model is equipped with baffles, air guide columns, waterproof exhaust fans, support columns, and water guide plates. By using two baffles inside the spray tank in conjunction with the air guide columns, the flow path of the exhaust gas is cleverly extended, increasing its residence time in the device. This allows the exhaust gas more time to fully contact and react with the spray water. The waterproof exhaust fan inside the air guide column provides stable power for the exhaust gas flow, ensuring rapid and smooth transmission of the exhaust gas and avoiding blockage. The two work together to greatly improve the treatment efficiency. Combined with the radial opening design of the air guide column from bottom to top, the exhaust gas diffuses and fully contacts the spray water, enhancing the purification effect.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a perspective view of a multi-stage spray device for treating waste gas according to the present invention; Figure 2 This is a front view of a multi-stage spray device for treating waste gas according to the present invention; Figure 3 This is a cross-sectional perspective view of a multi-stage spray device for treating waste gas according to this utility model; Figure 4 For utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0015] Legend: 1. Spray tank; 2. Observation window; 3. Exhaust pipe; 4. Support leg; 5. Drain pipe; 6. First connecting pipe; 7. Second connecting pipe; 8. Controller; 9. Exhaust pipe; 10. Water inlet pipe; 11. Branch pipe; 12. Wide-angle spray head; 13. Air guide column; 14. Support column; 15. Water guide plate; 16. Waterproof exhaust fan; 17. Baffle. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] Reference Figure 1-4 This utility model discloses a multi-stage spray device for treating waste gas, comprising: a spray tank 1 and auxiliary components. Two partitions 17 are fixedly connected to the inner surface of the spray tank 1, dividing the interior of the spray tank 1 into specific spatial areas, providing a zoning basis for the subsequent waste gas treatment process and making the waste gas treatment process more orderly. Air guide columns 13 are fixedly connected to the upper surfaces of both partitions 17, guiding the waste gas upwards, allowing it to be transported along a predetermined path for easy integration with subsequent components. A waterproof exhaust fan 16 is installed inside the air guide column 13, and the waterproof exhaust fan 16 transmits air through the bottom... The upward vertical airflow draws the exhaust gas introduced by the exhaust pipe 3 into the air guide column 13 and transports it upward, providing power for the flow of exhaust gas within the device. Support columns 14 are fixedly connected around the upper surface of the air guide column 13. The support columns 14 support the water guide plate 15, ensuring the stable installation of the water guide plate 15 within the device and providing structural support for receiving and guiding water flow. The water guide plate 15 is fixedly connected to the upper surface of the support column 14. The water guide plate 15 is set in accordance with the size of the air guide column 13, effectively receiving the water flowing down from above and guiding the water to the periphery of the air guide column 13, facilitating the spraying treatment of the exhaust gas passing through the air guide column 13.

[0018] The interior of the waterproof exhaust fan 16 is connected to the upper and lower surfaces of the partition 17, allowing the exhaust gas drawn by the waterproof exhaust fan 16 to pass through the partition 17 and flow between different areas for multi-stage treatment. The dimensions of the air guide column 13 and the water guide plate 15 are correspondingly set to ensure that the water guide plate 15 can completely cover the top of the air guide column 13, so that the water flow is evenly distributed around the air guide column 13, enhancing the spraying effect on the exhaust gas. The air guide column 13 extends radially from bottom to top, and this structural design helps the exhaust gas diffuse during its ascent, increasing the contact area with the sprayed water and improving the exhaust gas treatment efficiency. The dimensions of the waterproof exhaust fan 16 and the air guide column 13 are correspondingly set to ensure that the waterproof exhaust fan 16 can be adapted to the air guide column 13, efficiently drawing in and transporting the exhaust gas. To avoid airflow leakage or poor transport, three air guide columns 13 are used. These three columns work together to increase the waste gas treatment path and capacity, enhancing the overall waste gas treatment capacity of the device. The positions of the air guide columns 13 and the baffles 17 are staggered, making the waste gas flow path within the device more complex, extending the residence time of the waste gas, and enhancing the reaction effect between the waste gas and the spray water. The auxiliary components are located inside the spray tank 1 and include an observation window 2, a waste gas pipe 3, support legs 4, a drain pipe 5, a first connecting pipe 6, a second connecting pipe 7, a controller 8, an exhaust pipe 9, a water inlet pipe 10, branch pipes 11, and large-angle spray heads 12. These auxiliary components work together to form a complete waste gas treatment system. The spray tank 1 is equipped with a system for introducing, treating, and discharging waste gas, as well as recycling water. A waste gas pipe 3 and four support legs 4 are fixedly connected to the lower surface of the spray tank 1, distributed around the outer surface of the waste gas pipe 3. The support legs 4 support the spray tank 1, ensuring stability. The waste gas pipe 3 introduces external waste gas into the spray tank 1 to initiate the waste gas treatment process. Three drain pipes 5 are fixedly connected to the side wall of the spray tank 1, with a first connecting pipe 6 fixedly connected to one end of each pipe. The drain pipes 5 discharge wastewater after spray treatment, and the first connecting pipe 6 collects the wastewater discharged from the three drain pipes 5 for subsequent treatment. A second connecting pipe 7 is fixedly connected to the end of the spray tank 1 furthest from the drain pipes 5, and the second connecting pipe 7 is close to the spray tank 1. The system has three fixed water inlet pipes 10. The second connecting pipe 7 and the water inlet pipes 10 are used to introduce clean water required for treating the waste gas, providing a water source for the spray treatment. A branch pipe 11 is fixedly connected to the outer surface of the water inlet pipe 10. The branch pipe 11 disperses the water introduced by the water inlet pipe 10, making the water flow more evenly distributed to each large-angle spray head 12. Two large-angle spray heads 12 are symmetrically arranged on the lower surface of the branch pipe 11. The large-angle spray heads 12 spray the water distributed by the branch pipe 11 at a larger angle, increasing the spray coverage area, allowing the waste gas to fully contact the water, and improving the waste gas treatment effect. A controller 8 and an exhaust pipe 9 are fixedly connected to the upper surface of the spray tank 1, and the interior of the exhaust pipe 9 is connected to the interior of the spray tank 1. The controller 8 is used to control the operation of the entire device.For example, the operation of the waterproof exhaust fan 16 and the spraying of the large-angle spray head 12 are controlled by the exhaust pipe 9, which is used to discharge the treated waste gas from the device. The front surface of the spray tank 1 is equipped with three observation windows 2, which allow operators to easily observe the waste gas treatment status and water spraying status inside the device, enabling them to promptly identify and adjust any problems.

[0019] The interior of the exhaust pipe 3 is connected to the interior of the waterproof exhaust fan 16, ensuring that external exhaust gas can smoothly enter the waterproof exhaust fan 16 through the exhaust pipe 3 and be drawn into the device for treatment. The driving airflow direction of the waterproof exhaust fan 16 is set vertically from bottom to top. This setting ensures that the exhaust gas can flow upward along a predetermined path and fully contact and react with the spray water from top to bottom. The end of the drain pipe 5 away from the first connecting pipe 6 is fixedly connected to the partition 17, and their positions are staggered. This connection and layout allows sewage to flow and be collected between different areas, making it easy to discharge the treated sewage from each area. The branch pipe 11 is located below the partition 17, and the position of the branch pipe 11 is parallel to the position of the drain pipe 5. This layout makes the spray water delivery and sewage discharge paths independent of each other, avoiding mutual interference and ensuring the normal operation of the device. The position of the observation window 2 is parallel to the position of the water guide plate 15, making it convenient for operators to observe the water flow and exhaust gas treatment near the water guide plate 15 through the observation window 2 and keep abreast of the device's operating status.

[0020] Working Principle: First, clean water required for treating the waste gas is introduced into the device through the second connecting pipe 7 and the water inlet pipe 10. The clean water is evenly distributed to each large-angle spray head 12 through the branch pipe 11. While waiting for spraying, the support legs 4 are checked to ensure the spray tank 1 is stably placed. The observation window 2 is confirmed to be clear for subsequent observation of the internal condition of the device. The controller 8 is turned on, and the waterproof exhaust fan 16 is started. External waste gas enters the device through the waste gas pipe 3. Under the driving airflow of the waterproof exhaust fan 16 from bottom to top, the waste gas is drawn into the air guide column 13 and transported upwards. The large-angle spray heads 12 spray the water distributed by the branch pipe 11 at a large angle, covering the space below and fully contacting the rising waste gas for spraying treatment. The air guide column 13 extends radially from bottom to top in an open shape, helping the waste gas diffuse and increasing the contact area with the sprayed water. To improve the treatment effect, the water guide plate 15 receives the water flowing down from above and directs it to the vicinity of the air guide column 13, continuously replenishing the spray water. The exhaust gas passes through the partition 17 connected to the waterproof exhaust fan 16 and flows between different areas to achieve multi-stage treatment. The sewage generated during the treatment process is collected by the drain pipe 5. The end of the drain pipe 5 away from the first connecting pipe 6 is fixed to the partition 17 and the positions are staggered to facilitate the flow and collection of sewage in different areas. The sewage is discharged from the device after being collected by the first connecting pipe 6. The exhaust gas after multi-stage spray treatment is discharged from the device through the exhaust pipe 9, completing the entire exhaust gas treatment process. The operator can observe the water flow and exhaust gas treatment status near the water guide plate 15 inside the device through the observation window 2. If any abnormality is found, the operator can adjust parameters such as the operating speed of the waterproof exhaust fan 16 and the spray status of the large-angle spray head 12 through the controller 8.

[0021] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A multi-stage spray device for treating exhaust gas, comprising: The spray tank (1) and its auxiliary components are characterized in that: two partitions (17) are fixedly connected to the inner surface of the spray tank (1), and air guide columns (13) are fixedly connected to the upper surfaces of the two partitions (17). A waterproof exhaust fan (16) is provided inside the air guide column (13), and a support column (14) is fixedly connected around the upper surface of the air guide column (13). A water guide plate (15) is fixedly connected to the upper surface of the support column (14).

2. A multi-stage spray device for treating exhaust gases according to claim 1, characterized in that: The interior of the waterproof exhaust fan (16) is connected to the upper and lower surfaces of the partition (17), and the dimensions of the air guide column (13) and the water guide plate (15) are set accordingly.

3. A multi-stage spray device for treating exhaust gases according to claim 1, characterized in that: The air guide column (13) extends radially from bottom to top in an open shape, and the size of the waterproof exhaust fan (16) is set to correspond to the size of the air guide column (13).

4. The multi-stage spray device for treating waste gas according to claim 1, characterized in that: The number of air guide columns (13) is three, and the positions of the air guide columns (13) and the partition (17) are staggered.

5. A multi-stage spray device for treating exhaust gases as claimed in claim 1, wherein: The auxiliary components are located inside the spray tank (1). The auxiliary components include an observation window (2), an exhaust pipe (3), support legs (4), a drain pipe (5), a first connecting pipe (6), a second connecting pipe (7), a controller (8), an exhaust pipe (9), a water inlet pipe (10), a branch pipe (11), and a large-angle spray head (12). The exhaust pipe (3) and four support legs (4) are fixedly connected to the lower surface of the spray tank (1), and the four support legs (4) are distributed around the outer surface of the exhaust pipe (3). Three drain pipes (5) are fixedly connected to the side wall of the spray tank (1), and one end of the three drain pipes (5) is fixedly connected to a... The first connecting pipe (6) is fixedly connected to the end of the spray tank (1) away from the drain pipe (5) and the second connecting pipe (7) is fixedly connected to the second connecting pipe (7) near the spray tank (1) with three water inlet pipes (10). The outer surface of the water inlet pipe (10) is fixedly connected to a branch pipe (11). The lower surface of the branch pipe (11) is symmetrically provided with two large-angle spray heads (12). The upper surface of the spray tank (1) is fixedly connected to a controller (8) and an exhaust pipe (9). The interior of the exhaust pipe (9) is connected to the interior of the spray tank (1). The front surface of the spray tank (1) is provided with three observation windows (2).

6. A multi-stage spray device for treating exhaust gases according to claim 5, characterised in that: The interior of the exhaust pipe (3) is connected to the interior of the waterproof exhaust fan (16). The driving airflow direction of the waterproof exhaust fan (16) is arranged vertically from bottom to top. The end of the drain pipe (5) away from the first connecting pipe (6) is fixedly connected to the partition (17), and their positions are staggered.

7. A multi-stage spray device for treating exhaust gases according to claim 5, wherein: The branch pipe (11) is located below the partition (17), and the position of the branch pipe (11) is parallel to the position of the drain pipe (5). The position of the observation window (2) is parallel to the position of the water guide plate (15).

Images