A cyclone type exhaust gas treatment tower having a deflector

Abstract

The utility model belongs to waste gas treatment tower technical field discloses a cyclone type waste gas treatment tower with guide vane, including base, base upper end fixedly connected tower body structure, base upper end fixedly connected water tank, base upper end fixedly connected with water pump, water pump one side communicates with water tank inner surface through pipeline, water pump inner surface fixedly connected and have output pipe that communicate. Through setting guide component, can buffer the waste gas that enters from air inlet, prevent waste gas straight rush tower wall and cause tower wall damage and energy loss, and can guide waste gas to flow along tower inner wall, make waste gas distribution more uniform, through setting guide plate no.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment tower technology, specifically to a cyclone waste gas treatment tower with a guide plate. Background Technology

[0002] With the rapid development of industrial production, the waste gases emitted by industries such as chemical, electronics, electroplating, printing and dyeing, pharmaceutical, steel, and power plants contain a large number of harmful components, such as dust, acid mist, and organic waste gases. If these waste gases are discharged directly without effective treatment, they will cause serious pollution to the atmospheric environment and endanger human health. Therefore, it is necessary to use waste gas purification towers to purify industrial waste gases. Waste gas purification towers, also known as acid mist absorption towers, spray towers, or scrubbing towers, are key equipment for realizing gas absorption and purification operations. They use gas-liquid contact to absorb, neutralize, or adsorb pollutants in waste gases using absorbent liquid, thereby achieving the purpose of purifying waste gases. They have been widely used in industrial waste gas treatment.

[0003] Chinese Patent Announcement No. CN220715284U discloses a cyclone-type waste gas treatment tower. In use, waste gas is transported to the cyclone spray scrubbing tower body through an air inlet pipe. Impurities or larger particles in the waste gas are separated by a cyclone separator inside the cyclone spray scrubbing tower body. The waste gas enters the bottom of the spray absorption composite tower body through a first air duct. The spray absorption composite tower body is equipped with packing material, which adsorbs the waste gas. The adsorbed gas is then sprayed through the packing material, ensuring that the combined purification rate of the spray scrubbing tower and the spray absorption composite tower reaches more than 90%.

[0004] However, the following defects still exist in the specific implementation process: On the one hand, the treatment tower lacks an effective process for guiding the exhaust gas. When the exhaust gas enters the treatment tower through the inlet pipe, the airflow has a strong impact force and is likely to directly hit the tower wall. This not only causes the loss of airflow energy but may also damage the tower wall due to long-term impact. At the same time, the uneven distribution of this airflow directly hitting the tower wall will affect the subsequent contact effect with the absorbent liquid and reduce the purification efficiency. On the other hand, when the exhaust gas passes through the packing layer, due to the distribution and structural characteristics of the packing, the airflow in some areas is too fast due to uneven resistance. This prevents the exhaust gas in these areas from fully contacting the liquid and quickly passes through the packing layer, thus affecting the overall purification effect and making it difficult to meet the increasingly stringent exhaust gas emission standards.

[0005] Based on this, this utility model designs a cyclone waste gas treatment tower with a guide plate to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a cyclone waste gas treatment tower with a guide plate.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A cyclone-type exhaust gas treatment tower with a guide plate includes a base, a tower body structure fixedly connected to the upper end of the base, a water tank fixedly connected to the upper end of the base, a water pump fixedly connected to the upper end of the base, one side of the water pump communicating with the inner surface of the water tank through a pipe, an output pipe fixedly connected and communicating with the inner surface of the water pump, the tower body structure including a treatment tower body, the lower end of the treatment tower body being fixedly connected to the upper end of the base, an air inlet fixedly connected to the inner surface of the treatment tower body, a guide plate fixedly connected to the inner cavity of the treatment tower body, a plurality of inspection ports fixedly connected to the inner surface of the treatment tower body, a packing layer assembly fixedly connected to the inner cavity of the treatment tower body, a spray assembly provided in the inner cavity of the treatment tower body, a cyclone demisting assembly fixedly connected to the inner cavity of the treatment tower body, and an exhaust hood fixedly connected to the upper end of the treatment tower body by bolts. Furthermore, the flow guiding assembly includes a buffer cover, on the inner surface of which multiple flow guiding pipes are fixedly connected. The buffer cover can provide initial buffering for the exhaust gas entering from the air inlet, preventing the exhaust gas from directly impacting the tower wall. The multiple flow guiding pipes can guide the exhaust gas to flow along the inner wall of the tower, which can avoid airflow concentration and lay the foundation for subsequent treatment processes. Furthermore, the packing layer assembly includes a mounting frame 1, with multiple packing plates disposed on the upper end of the mounting frame 1, and a guide plate 1 disposed between each of the multiple packing plates. The guide plate 1 can change the flow path of the exhaust gas in the packing layer, avoid the phenomenon of excessive airflow in some areas due to uneven resistance, and enable the exhaust gas to fully contact the packing plates and the liquid on the surface, prolong the contact time, and improve the adsorption and purification effect. Furthermore, the spray assembly includes a connecting plate. One side of the connecting plate is fixedly connected to and communicates with the output pipe via bolts. The other side of the connecting plate is fixedly connected to a main flow pipe. Multiple branch pipes are fixedly connected to and communicate with the inner surface of the main flow pipe. Multiple spiral nozzles are fixedly connected to and communicate with the inner surface of each of the multiple branch pipes. Multiple spiral nozzles are also fixedly connected to and communicate with the lower end of the main flow pipe. The absorbent liquid transported by the output pipe enters the main flow pipe through the connecting plate and is then distributed to each spiral nozzle through the branch pipes. The spiral nozzles can spray the absorbent liquid into fine mist droplets, increasing the contact area with the exhaust gas, ensuring the comprehensiveness of the spray, and improving the purification efficiency of the exhaust gas. Furthermore, the cyclone demister assembly includes two mounting brackets. A cyclone demister is installed at the upper end of the lower mounting bracket, and a wire mesh demister is installed at the upper end of the upper mounting bracket. The cyclone demister uses centrifugal force to separate larger droplets from the exhaust gas; the wire mesh demister can further remove residual fine droplets from the exhaust gas. Through two-stage demistering, the demistering effect can be effectively improved, ensuring the quality of the discharged exhaust gas. Furthermore, both of the aforementioned mounting brackets are fixedly installed on the inner wall of the processing tower body; Furthermore, the mounting bracket is fixedly installed on the inner wall of the processing tower body; Furthermore, the buffer cover is fixedly installed on the inner wall of the processing tower body, and the installation position of the buffer cover corresponds to the position of the air inlet.

[0008] Compared with the prior art, the advantages of this utility model are as follows:

[0009] (1) By setting up a flow guiding component, this solution can buffer the waste gas entering from the air inlet, prevent the waste gas from directly hitting the tower wall and causing damage to the tower wall and energy loss, and guide the waste gas to flow along the inner wall of the tower, avoid airflow concentration, make the waste gas distribution more uniform, and create good conditions for subsequent full contact with the absorbent liquid. It effectively solves the problems of waste gas directly hitting the tower wall and uneven airflow distribution affecting the purification efficiency in the existing technology, and improves the stability of waste gas treatment and the initial purification effect.

[0010] (2) By setting a guide plate between multiple packing plates in the packing layer assembly, this solution can change the flow path of the waste gas in the packing layer, avoid the phenomenon of excessive airflow in some areas due to uneven resistance, and allow the waste gas to fully contact the packing plate and surface liquid, prolong the contact time, further improve the effect of the treatment tower on the adsorption and purification of waste gas, and improve the practicality of the treatment tower.

[0011] (3) This solution uses a spray assembly in conjunction with a cyclone demisting assembly to spray the absorbent liquid into fine mist droplets, increasing the contact area with the exhaust gas and improving the purification efficiency of the exhaust gas; at the same time, the two-stage demisting method can effectively remove the droplets entrained in the exhaust gas and ensure the quality of the exhaust gas. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the tower structure of this utility model; Figure 3 This is a schematic diagram of the flow guiding component of this utility model; Figure 4 This is a schematic diagram of the filler layer assembly of this utility model; Figure 5 This is a schematic diagram of the spray assembly of this utility model; Figure 6 This is a schematic diagram of the cyclone demister assembly of this utility model.

[0014] The labels in the diagram represent: 1. Base; 2. Tower structure; 21. Treatment tower body; 22. Air inlet; 23. Flow guide assembly; 231. Buffer cover; 232. Flow guide pipe; 24. Swirl plate; 25. Inspection port; 26. Packing layer assembly; 261. Mounting bracket one; 262. Packing plate; 263. Flow guide plate one; 27. Spray assembly; 271. Connecting plate; 272. Main flow pipe; 273. Diverter pipe; 274. Spiral nozzle; 28. Swirl demister assembly; 281. Mounting bracket two; 282. Swirl demister; 283. Wire mesh demister; 29. ​​Air outlet hood; 3. Water tank; 4. Water pump; 5. Output pipe. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0016] The present invention will be further described below with reference to the embodiments.

[0017] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-6A cyclone-type exhaust gas treatment tower with a guide plate includes a base 1, a tower body structure 2 fixedly connected to the upper end of the base 1, a water tank 3 fixedly connected to the upper end of the base 1, a water pump 4 fixedly connected to the upper end of the base 1, one side of the water pump 4 being connected to the inner surface of the water tank 3 via a pipe, and an output pipe 5 fixedly connected and connected to the inner surface of the water pump 4. The tower body structure 2 includes a treatment tower body 21, the lower end of the treatment tower body 21 being fixedly connected to the upper end of the base 1, an air inlet 22 fixedly connected to the inner surface of the treatment tower body 21, a guide component 23 fixedly connected to the inner cavity of the treatment tower body 21, a cyclone plate 24 fixedly connected to the inner cavity of the treatment tower body 21, multiple maintenance ports 25 fixedly connected to the inner surface of the treatment tower body 21, a packing layer assembly 26 fixedly connected to the inner cavity of the treatment tower body 21, a spray assembly 27 provided in the inner cavity of the treatment tower body 21, a cyclone demisting assembly 28 fixedly connected to the inner cavity of the treatment tower body 21, and an exhaust hood 29 fixedly connected to the upper end of the treatment tower body 21 by bolts.

[0018] Pump 4 is a Grundfos CR series stainless steel pump, which can draw the absorbent liquid in the water tank 3 and deliver it to the spray assembly 27 through the output pipe 5, providing power for the circulation of the absorbent liquid and ensuring that the spray assembly 27 can continuously and stably spray the absorbent liquid into the tower to fully contact the exhaust gas for purification reaction.

[0019] In this embodiment of the utility model, the base 1 is made of cast iron, which has high strength and stability, providing solid support for the entire equipment and ensuring that the equipment will not shift due to vibration or other factors during operation; the water tank 3 is made of polyethylene, which has strong corrosion resistance and does not easily react chemically with the absorbent, allowing for long-term stable storage of the absorbent; the water pump 4 is made of stainless steel, which can resist the corrosion of the absorbent and ensure its long-term effective operation; the water pump 4, together with the output pipe 5, is used to transport the absorbent from the water pump 4 to the spray assembly 27; during use, the exhaust gas can be introduced into the treatment tower body 21 through the air inlet 22, and after multi-stage treatment by the guide assembly 23, the swirl plate 24, the packing layer assembly 26, the spray assembly 27, and the swirl demister assembly 28, it is discharged from the exhaust hood 29.

[0020] In some embodiments, such as Figure 2-6 As shown, in a preferred embodiment of the present invention, the flow guiding component 23 includes a buffer cover 231, which is fixedly installed on the inner wall of the processing tower body 21. The installation position of the buffer cover 231 corresponds to the position of the air inlet 22, and multiple flow guiding pipes 232 are fixedly connected to the inner surface of the buffer cover 231.

[0021] The packing layer assembly 26 includes a mounting frame 261, which is fixedly installed on the inner wall of the treatment tower body 21. Multiple packing plates 262 are provided on the upper end of the mounting frame 261, and guide plates 263 are provided between the multiple packing plates 262.

[0022] The spray assembly 27 includes a connecting plate 271. One side of the connecting plate 271 is fixedly connected to and communicates with the output pipe 5 by bolts. The other side of the connecting plate 271 is fixedly connected to a main pipe 272. Multiple branch pipes 273 are fixedly connected to and communicate with the inner surface of the main pipe 272. Multiple spiral nozzles 274 are fixedly connected to and communicate with the inner surface of each of the multiple branch pipes 273. Multiple spiral nozzles 274 are also fixedly connected to and communicate with the lower end of the main pipe 272.

[0023] The cyclone demister assembly 28 includes two mounting brackets 281, both of which are fixedly installed on the inner wall of the treatment tower body 21. A cyclone demister 282 is provided on the upper end of the lower mounting bracket 281, and a wire mesh demister 283 is provided on the upper end of the upper mounting bracket 281.

[0024] In this embodiment of the present invention, the exhaust gas enters the interior of the treatment tower body 21 through the air inlet 22 and first comes into contact with the buffer cover 231 of the flow guiding component 23. The buffer cover 231 provides initial buffering for the exhaust gas, preventing the exhaust gas from directly impacting the tower wall. Subsequently, the exhaust gas enters multiple flow guiding pipes 232 and flows along the inner wall of the treatment tower body 21 under the guidance of the flow guiding pipes 232, avoiding airflow concentration and enabling the exhaust gas to be initially evenly distributed in the tower.

[0025] The exhaust gas flows upward under the action of the swirl plate 24. When flowing between multiple packing plates 262, the guide plate 263 changes the flow path of the exhaust gas, avoiding excessively fast airflow in some areas, and allowing the exhaust gas to fully contact the packing plates 262 and the liquid on their surface. The large specific surface area of ​​the packing plates 262 further increases the gas-liquid contact area and prolongs the contact time.

[0026] The water pump 4 delivers the absorbent liquid in the water tank 3 to the connecting plate 271 of the spray assembly 27 through the output pipe 5. The absorbent liquid enters the main pipe 272 through the connecting plate 271. The main pipe 272, together with the branch pipe 273, distributes the absorbent liquid to each spiral nozzle 274, allowing multiple spiral nozzles 274 to work together to spray the absorbent liquid into fine mist droplets, which come into full contact with the rotating and rising exhaust gas. The absorbent liquid reacts chemically or physically with the pollutants in the exhaust gas, thereby removing the pollutants from the exhaust gas.

[0027] The exhaust gas carries some liquid droplets upwards and passes through the cyclone demister 282. Under the action of centrifugal force, the larger liquid droplets in the exhaust gas are separated, adhere to the tower wall and gradually drip down. It continues to pass upwards through the wire mesh demister 283, which further removes the fine liquid droplets remaining in the exhaust gas, ensuring that the discharged exhaust gas is dry and clean.

[0028] It should be noted that the water pump 4 in this utility model is powered by an electric power source and controlled by a controller.

[0029] It should be noted that the specific installation method, circuit connection method and control method of the water pump 4 in this utility model are all conventional designs, and this utility model will not elaborate on them in detail.

[0030] Working principle: Waste gas entry stage: Industrial waste gas enters the interior of the treatment tower body 21 through the air inlet 22 and first comes into contact with the buffer cover 231 of the flow guiding component 23. The buffer cover 231 provides initial buffering for the waste gas, preventing the waste gas from directly impacting the tower wall. Subsequently, the waste gas enters multiple flow guiding pipes 232 and flows along the inner wall of the treatment tower body 21 under the guidance of the flow guiding pipes 232, avoiding airflow concentration and enabling the waste gas to achieve initial uniform distribution in the tower.

[0031] Swirl contact stage: After being guided, the exhaust gas flows upward and reaches the swirl plate 24. Under the action of the spiral blades of the swirl plate 24, the exhaust gas forms a rotating airflow. This rotating motion increases the residence time of the exhaust gas in the tower.

[0032] In the packing adsorption stage: Under the action of the swirl plate 24, the exhaust gas flows upward and enters the packing layer assembly 26. As it flows between multiple packing plates 262, the guide plate 263 alters the flow path of the exhaust gas, preventing excessively fast airflow in certain areas and ensuring sufficient contact between the exhaust gas and the packing plates 262 and the liquid on their surface. The large specific surface area of ​​the packing plates 262 further increases the gas-liquid contact area, prolongs the contact time, and further improves the adsorption and purification effect on the exhaust gas.

[0033] Spray purification stage: Water pump 4 delivers the absorbent liquid in water tank 3 to the connecting plate 271 of spray assembly 27 through output pipe 5. The absorbent liquid enters the main pipe 272 through the connecting plate 271, and is then distributed to each spiral nozzle 274 through the diversion pipe 273. At the same time, the spiral nozzle 274 at the lower end of the main pipe 272 also sprays out the absorbent liquid. Multiple spiral nozzles 274 work together to spray the absorbent liquid into fine mist droplets, which come into full contact with the rotating and rising exhaust gas. The absorbent liquid reacts chemically or physically with the pollutants in the exhaust gas, thereby removing the pollutants from the exhaust gas.

[0034] Demisting emission stage: The purified exhaust gas, carrying some liquid droplets, flows upward and enters the cyclone demister assembly 28. First, it passes through the cyclone demister 282. Under the action of centrifugal force, the larger liquid droplets in the exhaust gas are separated, adhere to the tower wall, and gradually drip down. Then, the exhaust gas continues to rise through the wire mesh demister 283. The wire mesh demister 283 further removes the residual fine liquid droplets in the exhaust gas, ensuring that the discharged exhaust gas is dry and clean. Finally, the purified exhaust gas is discharged from the treatment tower body 21 through the exhaust hood 29.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cyclone-type waste gas treatment tower with a guide vane, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to the tower structure (2), the upper end of the base (1) is fixedly connected to the water tank (3), the upper end of the base (1) is fixedly connected to the water pump (4), one side of the water pump (4) is connected to the inner surface of the water tank (3) through a pipe, the inner surface of the water pump (4) is fixedly connected to and connected to the output pipe (5), the tower structure (2) includes the processing tower body (21), the lower end of the processing tower body (21) is fixedly connected to the upper end of the base (1), the inner surface of the processing tower body (21) is fixedly connected to the air inlet (22), the processing tower A flow guiding assembly (23) is fixedly connected to the inner cavity of the main body (21). A swirl plate (24) is fixedly connected to the inner cavity of the treatment tower body (21). Multiple inspection ports (25) are fixedly connected to the inner surface of the treatment tower body (21). A packing layer assembly (26) is fixedly connected to the inner cavity of the treatment tower body (21). A spray assembly (27) is provided in the inner cavity of the treatment tower body (21). A swirl demisting assembly (28) is fixedly connected to the inner cavity of the treatment tower body (21). An exhaust hood (29) is fixedly connected to the upper end of the treatment tower body (21) by bolts.

2. The cyclone-type waste gas treatment tower with guide vanes according to claim 1, characterized in that: The flow guiding assembly (23) includes a buffer cover (231), and a plurality of flow guiding pipes (232) are fixedly connected to the inner surface of the buffer cover (231).

3. The cyclone-type waste gas treatment tower with guide vanes according to claim 1, characterized in that: The packing layer assembly (26) includes a mounting frame (261), with multiple packing plates (262) disposed on the upper end of the mounting frame (261), and a guide plate (263) disposed between each of the multiple packing plates (262).

4. The cyclone-type waste gas treatment tower with guide vanes according to claim 1, characterized in that: The spray assembly (27) includes a connecting plate (271). One side of the connecting plate (271) is fixedly connected to and communicates with the output pipe (5) by bolts. The other side of the connecting plate (271) is fixedly connected to a main pipe (272). Multiple branch pipes (273) are fixedly connected to and communicate with the inner surface of the main pipe (272). Multiple spiral nozzles (274) are fixedly connected to and communicate with the inner surface of each of the multiple branch pipes (273). Multiple spiral nozzles (274) are also fixedly connected to and communicate with the lower end of the main pipe (272).

5. The cyclone-type waste gas treatment tower with guide vanes according to claim 1, characterized in that: The swirl demister assembly (28) includes two mounting brackets (281). The upper end of the lower mounting bracket (281) is provided with a swirl demister (282), and the upper end of the upper mounting bracket (281) is provided with a wire mesh demister (283).

6. The cyclone-type waste gas treatment tower with guide vanes according to claim 5, characterized in that: Both of the aforementioned mounting brackets (281) are fixedly installed on the inner wall of the processing tower body (21).

7. The cyclone-type waste gas treatment tower with guide vanes according to claim 3, characterized in that: The mounting bracket (261) is fixedly installed on the inner wall of the processing tower body (21).

8. The cyclone-type waste gas treatment tower with guide vanes according to claim 2, characterized in that: The buffer cover (231) is fixedly installed on the inner wall of the processing tower body (21), and the installation position of the buffer cover (231) corresponds to the position of the air inlet (22).

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