A spray tower

Abstract

This utility model discloses a spray tower, relating to the technical field of gas purification equipment. The spray tower includes: a main body with an internal packing layer; gas to be treated can pass between the packing layer and the bottom of the main body; a spray assembly disposed inside the main body, located between the packing layer and the top of the main body; a liquid supply assembly disposed outside the main body; the liquid supply assembly can communicate with the spray assembly to supply liquid to the spray assembly, causing it to spray; or, the liquid supply assembly can communicate with the main body to supply liquid into the main body, ensuring that the liquid inside the main body at least submerges the packing layer; and an air blowing assembly is at least partially disposed inside the main body, located between the packing layer and the bottom of the main body; the air blowing assembly can blow air according to the submerged state of the packing layer. This spray tower is used to achieve automatic cleaning of the packing inside the spray tower, saving manpower, improving the safety of workers, and reducing operating costs.

Description

Technical Field

[0001] This utility model relates to the field of gas purification equipment technology, and in particular to a spray tower. Background Technology

[0002] During the treatment of organic waste, organic matter undergoes fermentation, decay, and decomposition, generating various malodorous gaseous pollutants. Once these substances are released into the surrounding environment, they will severely pollute air quality and may even harm workers' respiratory and nervous systems. Currently, the most common malodorous gas treatment process both domestically and internationally is the chemical absorption method using spray towers. Chemical spray towers are typically designed with packing material inside, whose function is to enhance the mixing effect of odorous gases and spray liquid, thereby increasing the absorption of pollutants in the malodorous gases and achieving the purpose of odor purification.

[0003] However, in actual operation, due to the high concentration of pollutants in the odorous gas, microorganisms easily grow inside the spray tower after a period of operation. The rapid proliferation of these microorganisms can cause blockage of the packing material. At this time, it is often necessary to shut down the machine and manually clean the packing material through the manhole. After cleaning, the packing material can be backfilled before restarting the machine. The whole process is not only time-consuming and labor-intensive, but also creates a harsh working environment, posing a threat to the health of the staff, and will also increase additional production and operating costs.

[0004] Therefore, there is an urgent need for a spray tower to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a spray tower for automatic cleaning of the internal packing material, saving manpower, improving the safety of workers, and reducing operating costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a spray tower, which includes: a spray tower body, a spraying assembly, a liquid supply assembly, and an air blowing assembly. The spray tower body has a packing layer inside; the gas to be treated can pass between the packing layer and the bottom of the spray tower body; the spraying assembly is disposed inside the spray tower body and located between the packing layer and the top of the spray tower body; the water outlet direction of the spraying assembly points towards the packing layer; the liquid supply assembly is disposed outside the spray tower body; the liquid supply assembly can communicate with the spraying assembly to supply liquid to the spraying assembly, causing the spraying assembly to perform a spraying action; or, the liquid supply assembly can communicate with the spray tower body to supply liquid into the spray tower body, so that the liquid inside the spray tower body at least submerges the packing layer; the air blowing assembly is at least partially disposed inside the spray tower body and located between the packing layer and the bottom of the spray tower body; the air blowing direction of the air blowing assembly points towards the packing layer; the air blowing assembly can perform an air blowing action according to the state of the packing layer being submerged.

[0008] In some embodiments, the air blowing assembly includes an air supply component and an air blowing pipeline; the air supply component is disposed outside the main body of the spray tower; the air blowing pipeline is disposed inside the main body of the spray tower and is located between the packing layer and the bottom of the main body of the spray tower; the air blowing pipeline is connected to the air supply component; and an air outlet is provided on the side of the air blowing pipeline facing the packing layer.

[0009] In some embodiments, the air blowing pipeline includes a main air blowing pipe and a plurality of branch air blowing pipes; the main air blowing pipe is connected to the air supply component; the plurality of branch air blowing pipes are respectively connected to the main air blowing pipe; the main air blowing pipe extends along a first direction; the branch air blowing pipes extend along a second direction; the second direction is set at an angle to the first direction.

[0010] In some embodiments, the main air blowing pipe passes through the centerline of the main body of the spray tower; a plurality of the air blowing branch pipes are respectively arranged on both sides of the main air blowing pipe, and are arranged symmetrically about the main air blowing pipe as the axis of symmetry.

[0011] In some embodiments, the number of air outlets is multiple; the opening directions of two adjacent air outlets are arranged at an angle.

[0012] In some embodiments, the diameter of the air outlet is gradually varied in the third direction; the third direction is vertical; the diameter of the air outlet at the end near the packing layer is larger than the diameter of the air outlet at the end away from the packing layer.

[0013] In some embodiments, the spray assembly includes a support frame and spray pipes; the support frame is connected between the packing layer and the top of the spray tower body; the spray pipes are disposed on the side of the support frame facing the packing layer.

[0014] In some embodiments, a deflector layer is provided on the side of the support frame away from the spray pipe.

[0015] In some embodiments, the liquid supply assembly includes a liquid storage tank, a first liquid supply pipeline, a second liquid supply pipeline, and a liquid supply pump; one end of the first liquid supply pipeline is connected to the liquid storage tank, and the other end is connected to the spray assembly; one end of the second liquid supply pipeline is connected to the liquid storage tank, and the other end is connected to the interior of the spray tower body; the liquid supply pump is capable of transporting the liquid inside the liquid storage tank to the spray assembly or the interior of the spray tower body.

[0016] In some embodiments, the packing layer includes a packing support and a packing tray; the packing support is fixed inside the spray tower body and is arranged parallel to the plane formed by the first direction and the second direction; the second direction is arranged at an angle to the first direction; the packing tray is disposed on the packing support; and the packing tray is filled with packing material.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a spray tower, which includes a spray assembly installed above the packing layer inside the spray tower body, an air blowing assembly installed below the packing layer inside the spray tower body, and a liquid supply assembly that can communicate with the spray assembly or with the interior of the spray tower body. This allows the following process: When the spray tower needs to purify the gas entering its main body, the liquid supply component supplies liquid to the spray components, which then spray the liquid towards the packing layer. Under the action of the packing material, the gas to be treated can be fully mixed with the spray liquid and react, thus purifying the gas. The purified gas can then be discharged from the top of the spray tower. When the packing layer needs cleaning after prolonged use, the liquid supply component can supply liquid into the spray tower (stop supplying liquid to the spray components). Once the liquid inside the spray tower submerges the packing layer, the air blowing component is activated, blowing air towards the packing layer. This blowing action generates bubbles in the liquid inside the spray tower, causing the liquid to tumble and rub against the packing material, thus cleaning it. Furthermore, the bubbles disrupt the static water film on the surface of any adhering material outside the packing, enhancing liquid penetration. Simultaneously, the rising bubbles generate shear stress on the adhering material, further improving the cleaning effect. During the cleaning process of the packing layer inside the main body of the spray tower, there is no need to manually remove the packing for cleaning, which simplifies the operation steps, saves manpower, improves work efficiency, ensures the personal safety of the staff, reduces production and operation costs, and also improves the cleaning effect of the packing. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a spray tower provided in a specific embodiment of this utility model;

[0020] Figure 2 yes Figure 1 The flowchart shown illustrates the process of cleaning the packing layer in a spray tower.

[0021] Figure 3 This is a structural diagram of a spray tower from another perspective, provided in a specific embodiment of this utility model.

[0022] In the picture:

[0023] 1. Spray tower body; 2. Packing layer; 21. Packing support; 22. Packing tray; 3. Spray assembly; 31. Support frame; 32. Spray pipeline; 4. Liquid supply assembly; 41. Liquid storage tank; 42. First liquid supply pipeline; 43. Second liquid supply pipeline; 44. Liquid supply pump; 5. Air blowing assembly; 51. Air supply component; 52. Air blowing pipeline; 521. Air outlet; 522. Main air blowing pipe; 523. Branch air blowing pipe; 6. Baffle demister layer;

[0024] X1, first direction; X2, second direction; X3, third direction. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] like Figure 1 As shown, this embodiment provides a spray tower, which includes: a spray tower body 1, a spraying assembly 3, a liquid supply assembly 4, and an air blowing assembly 5.

[0030] The main body 1 of the aforementioned spray tower is, for example, a cylindrical structure, and is made of, for example, fiberglass. A packing layer 2 is disposed inside the main body 1. The gas to be treated can pass between the packing layer 2 and the bottom of the main body 1.

[0031] For example, an air inlet is provided between the packing layer 2 and the bottom of the spray tower body 1. This air inlet is connected to a pipeline for conveying the gas to be treated, allowing the gas to enter the spray tower body 1 and flow upwards within it. After flowing upwards through the packing layer and being sprayed by the spray assembly 3, the gas is discharged from the top of the spray tower body 1. That is, as... Figure 1 As shown in the figure, the hollow arrows indicate the flow path of the gas to be treated.

[0032] The aforementioned packing layer 2 includes a packing support 21 and a packing tray 22. The packing support 21 is fixed inside the spray tower body 1 and is arranged parallel to the plane formed by the first direction X1 and the second direction X2. Here, the second direction X2 is arranged at an angle to the first direction X1, for example, 90°. The packing tray 22 is disposed on the packing support 21, and packing is disposed inside the packing tray 22. The packing is, for example, Pall rings, multifaceted hollow spheres (dodecahedral or hexahedral structure), etc. With this arrangement, when the spray assembly 3 sprays spray liquid towards the packing layer 2, the spray liquid adheres to the outer surface of the packing. Due to the structural characteristics of the packing, the contact area between the gas to be treated and the spray liquid is greatly increased, thereby enabling the gas to be treated to fully mix and react with the spray liquid, thus improving the purification effect of the gas to be treated.

[0033] like Figure 1 As shown, the spray assembly 3 is disposed inside the spray tower body 1 and is located between the packing layer 2 and the top of the spray tower body 1. The water outlet direction of the spray assembly 3 points towards the packing layer 2, that is, towards... Figure 1 Taking the shown perspective as an example, the spray assembly 3 is located above the packing layer 2. This spray assembly 3 can spray spray liquid from top to bottom, and the spray liquid flows from top to bottom inside the main body 1 of the spray tower. That is, as shown... Figure 1 As shown in the figure, the solid arrows indicate the flow path of the spray liquid.

[0034] like Figure 1 As shown, the liquid supply component 4 is disposed outside the spray tower body 1. This liquid supply component 4 can communicate with the spray assembly 3 to supply liquid to the spray assembly 3, causing the spray assembly 3 to perform a spraying action. Alternatively, the liquid supply component 4 can communicate with the spray tower body 1 to supply liquid into the spray tower body 1, ensuring that the liquid inside the spray tower body 1 at least submerges the packing layer 2.

[0035] For example, such as Figure 1 As shown, the liquid supply assembly 4 includes a liquid storage tank 41, a first liquid supply pipeline 42, a second liquid supply pipeline 43, and a liquid supply pump 44. One end of the first liquid supply pipeline 42 is connected to the liquid storage tank 41, and the other end is connected to the spray assembly 3. One end of the second liquid supply pipeline 43 is connected to the liquid storage tank 41, and the other end is connected to the interior of the spray tower body 1. It is easy to understand that, to facilitate liquid supply to the interior of the spray tower body 1, the connection point between the second liquid supply pipeline 43 and the spray tower body 1 can be located between the packing layer 2 and the bottom of the spray tower body 1. The liquid supply pump 44 can transport the liquid inside the liquid storage tank 41 to the spray assembly 3 or the interior of the spray tower body 1. The liquid supply pump 44 is, for example, a centrifugal pump or an axial flow pump.

[0036] Furthermore, it is easy to understand that in actual use, staff can add different liquids to the storage tank 41 according to different work steps (i.e., spraying action and cleaning action of packing layer 2). For example, when spraying, chemical spraying liquid can be added to the storage tank 41 (sodium hydroxide solution or sodium hypochlorite compound solution can be used for acidic gases with pH < 7; sulfuric acid solution or hydrochloric acid solution can be used for alkaline gases with pH > 7; and for mixed pollutants, a composite spraying liquid, such as a mixture of plant extract, biological enzyme preparation and oxidation enhancement liquid, can be used). When cleaning, ordinary cleaning liquid or water can be added to the storage tank 41. This allows for targeted liquid supply to the interior of the spray tower body 1, saving the overall operating cost of the spray tower. Of course, the aforementioned liquid supply component 4 can also include multiple liquid storage tanks 41 (for example, two, namely a first liquid storage tank 41 and a second liquid storage tank 41). One end of the first liquid supply pipeline 42 is connected to the first liquid storage tank 41, and the other end is connected to the aforementioned spray assembly 3. One end of the second liquid supply pipeline 43 is connected to the second liquid storage tank 41, and the other end is connected to the interior of the aforementioned spray tower body 1. With this arrangement, the composition of the liquid inside the two liquid storage tanks 41 can be set separately. For example, the first liquid storage tank 41 can contain chemical spraying liquid, and the second liquid storage tank 41 can contain ordinary cleaning liquid or water. This allows for targeted liquid supply to the interior of the spray tower body 1, saving on the overall operating cost of the spray tower.

[0037] like Figure 1 As shown, the air blowing assembly 5 is at least partially disposed inside the spray tower body 1, and is located between the packing layer 2 and the bottom of the spray tower body 1. The air blowing direction of the air blowing assembly 5 is towards the packing layer 2. That is, with Figure 1Taking the shown perspective as an example, the air blowing assembly 5 is located below the packing layer 2, and this air blowing assembly 5 can blow air from bottom to top. The distance between the air blowing assembly 5 and the bottom of the spray tower body 1 is greater than or equal to 200mm. For example, the distance between the air blowing assembly 5 and the bottom of the spray tower body 1 is 200mm; or 300mm; or 350mm. Those skilled in the art can flexibly set it according to actual usage requirements, and will not be listed exhaustively here. Preferably, the height of the air blowing assembly 5 is set at 100mm above the liquid level inside the spray tower body 1 during normal operation.

[0038] The aforementioned air blowing assembly 5 can perform air blowing based on the state in which the packing layer 2 is submerged. Specifically, the aforementioned liquid supply assembly 4 supplies liquid to the interior of the spray tower body 1, but after the liquid inside the spray tower body submerges the packing layer 2, the air blowing assembly 5 begins to perform air blowing; when the packing layer 2 is not submerged by the liquid inside the spray tower body 1, the air blowing assembly 5 does not perform air blowing. Here, the method for controlling the air blowing assembly 5 to perform or not perform the air blowing action is as follows: A transparent observation window is provided on the spray tower body 1, allowing manual observation of the liquid level inside the spray tower body 1. When the liquid inside the spray tower body 1 submerges the packing layer 2, the air blowing assembly 5 can be manually activated to perform the air blowing action; Alternatively, a liquid level sensor (e.g., a float-type liquid level sensor or a capacitive liquid level sensor) is provided above the packing layer 2, and the liquid level sensor is coupled to the air blowing assembly 5 (this coupling includes electrical connection and signal connection). When the liquid inside the spray tower body 1 submerges the packing layer 2, the liquid level sensor sends an electrical signal to the air blowing assembly 5, causing the air blowing assembly 5 to activate the air blowing action. Those skilled in the art can adopt different methods to control the air blowing assembly 5 to perform the air blowing action according to actual usage requirements, which will not be described in detail here.

[0039] Therefore, this embodiment provides a spray tower by setting a spray assembly 3 above the packing layer 2 inside the spray tower body, setting an air blowing assembly 5 below the packing layer 2 inside the spray tower body 1, and setting a liquid supply assembly 4 that can communicate with the spray assembly 3 or with the interior of the spray tower body 1. This allows the spray tower to purify the gas to be treated when it needs to be introduced into the spray tower body 1, with the liquid supply assembly 4 supplying liquid to the spray assembly 3, and the spray assembly 3 spraying the liquid towards the packing layer 2. Under the action of the packing material in the packing layer 2, the gas to be treated can be fully mixed with the liquid and react, thus purifying the gas. The purified gas can then be discharged from the top of the spray tower body 1. When the packing layer 2 needs cleaning after prolonged use, the liquid supply assembly 4 can supply liquid into the spray tower body 1 (stopping the supply to the spray assembly 3). After the liquid inside the main body 1 submerges the packing layer 2, the air blowing component 5 is activated, blowing air towards the packing layer 2. Under the blowing action of the air blowing component 5, bubbles are generated in the liquid inside the main body 1 of the spray tower. These bubbles cause the liquid to tumble, resulting in friction between the packing materials in the packing layer 2, thus cleaning the packing material. Furthermore, the bubbles can disrupt the static water film on the surface of the deposits outside the packing material, enhancing the penetration of the liquid into these deposits. Simultaneously, the rising of the bubbles generates shear stress on the deposits, further improving the cleaning effect. During the cleaning process of the packing layer 2 inside the main body 1 of the spray tower, there is no need for manual removal of the packing material for cleaning, simplifying the operation, saving manpower, improving work efficiency, ensuring the personal safety of personnel, reducing production and operating costs, and simultaneously enhancing the cleaning effect on the packing material.

[0040] It is easy to understand that control valves can be installed in the spray assembly 3, liquid supply assembly 4, air blowing assembly 5, and the pipeline for conveying the gas to be treated to control the opening and closing status of each assembly. Additionally, the main body 1 of the spray tower is also equipped with a drain valve for discharging waste liquid. For example, as... Figure 2As shown, the process of automatically cleaning the packing layer 2 of the above-mentioned spray tower is as follows: (1) Close the control valve between the liquid supply component 4 and the spray component 3; (2) Close the control valve on the gas delivery pipeline to be treated; (3) Open the control valve between the liquid supply component 4 and the spray tower body 1, start the liquid supply pump 44, and deliver the cleaning liquid stored in the liquid supply component 4 to the inside of the spray tower body 1 until the liquid inside the spray tower body 1 submerges the packing layer 2, and then close the control valve between the liquid supply component 4 and the spray tower body 1; (4) Open the control valve on the air blowing component 5, blow air into the inside of the spray tower body 1 through the air blowing component 5, and use the combined action of gas (bubbles) and liquid to impact the packing layer 2 to achieve cleaning of the packing layer 2; (5) The first cleaning takes about 2 hours. The specific cleaning time can be observed through the observation hole on the spray tower body 1. The cleaning process depends on the color of the liquid and the cleanliness of the packing. After the first cleaning is completed, open the drain valve on the main body 1 of the spray tower to drain the waste liquid inside the main body 1 of the spray tower. After the waste liquid inside the main body 1 of the spray tower is drained, close the drain valve on the main body 1 of the spray tower. (6) Repeat steps (3) to (5) to clean again. Generally, repeating the cleaning twice can effectively restore the porosity of the packing in the packing layer 2 and improve the gas-liquid contact efficiency inside the main body 1 of the spray tower. (7) After the cleaning is completed, close the control valve of the blowing assembly 5 and open the control valve of the gas delivery pipeline to be treated. (8) Inject the spray liquid into the liquid supply assembly 4 according to the conventional procedure, open the control valve between the spray assembly 3 and the liquid supply assembly 4, start the liquid supply pump 44, and at the same time, the gas to be treated enters the interior of the main body 1 of the spray tower for normal spraying treatment.

[0041] In some embodiments, combined with Figure 1 , Figure 3 As shown, the air blowing assembly 5 includes an air supply component 51 and an air blowing pipe 52. The air supply component 51 is located outside the main body 1 of the spray tower, and is, for example, a Roots blower. For the selection of the Roots blower model, those skilled in the art can make an adaptive selection based on the liquid level inside the spray tower main body 1 when the liquid submerges the packing layer 2 (i.e., the location of the packing layer 2 inside the spray tower main body 1; when the packing layer 2 is located at a higher position inside the spray tower main body 1, the liquid level inside the spray tower main body 1 when submerged in the packing layer 2 increases accordingly, and when the packing layer 2 is located at a lower position inside the spray tower main body 1, the liquid level inside the spray tower main body 1 when submerged in the packing layer 2 decreases accordingly), and the air-to-water ratio inside the spray tower main body 1 (the air-to-water ratio ranges from 3:1 to 5:1, preferably 5:1). A detailed description is not provided here. The air blowing pipe 52 is located inside the main body 1 of the spray tower, between the packing layer 2 and the bottom of the spray tower main body 1. The air blowing pipe 52 is connected to the air supply component 51. An air outlet 521 is provided on the side of the air blowing pipe 52 facing the packing layer 2, i.e., to... Figure 1As shown, an air outlet 521 is provided on the upper side of the air blowing pipe 52. With this configuration, the air blowing assembly 5 can blow air towards the packing layer 2. The structure is simple, easy to process and manufacture, and easy to install.

[0042] In some embodiments, such as Figure 3 As shown, the air blowing pipeline 52 includes a main air blowing pipe 522 and multiple branch air blowing pipes 523. The main air blowing pipe 522 is connected to the air supply component 51, and the multiple branch air blowing pipes 523 are respectively connected to the main air blowing pipe 522. The main air blowing pipe 522 extends along a first direction X1, and the branch air blowing pipes 523 extend along a second direction X2. The second direction X2 forms an angle with the first direction X1, for example, 90°. This arrangement increases the air blowing coverage area of ​​the air blowing pipeline 52, improving the cleaning efficiency of the packing layer 2.

[0043] In some embodiments, such as Figure 3 As shown, the main air blowing pipe 522 passes through the center line of the spray tower body 1. Multiple air blowing branch pipes 523 are respectively arranged on both sides of the main air blowing pipe 522, and are axially symmetrical about the main air blowing pipe 522. For example, six air blowing branch pipes 523 are arranged on each side of the main air blowing pipe 522. It is easy to understand that, to adapt to the shape of the spray tower body 1 (the spray tower body 1 has a cylindrical structure), the lengths of the multiple air blowing branch pipes 523 are not the same. Specifically, the lengths of the multiple air blowing branch pipes 523 decrease from the middle position of the main air blowing pipe 522 outwards. This arrangement makes the entire air blowing pipeline 52 symmetrical, which allows the gas (bubbles) blown out by the air blowing pipeline 52 to be more uniform, avoiding uneven gas (bubble) distribution during the cleaning of the packing layer 2, and ensuring the overall cleaning effect.

[0044] In some embodiments, the number of air outlets 521 provided on the air blowing pipe 52 is multiple. The opening directions of two adjacent air outlets 521 are arranged at an angle. For example, taking the vertical direction as a reference, if one of two adjacent air outlets 521 is inclined to the left, the other is inclined to the right. Here, the angle between the opening direction of the air outlet and the vertical direction is, for example, 45°. This arrangement can prevent the gas blown out of the air blowing pipe from directly impacting the bottom of the packing layer 2 and prevent the packing in the packing layer 2 from scattering.

[0045] In some embodiments, the diameter of the air outlet 521 on the air blowing pipe 52 is gradually varied in the third direction X3, where X3 is vertical. Specifically, the diameter of the air outlet 521 at the end near the packing layer 2 is larger than the diameter at the end away from the packing layer 2. In other words, the diameter of the air outlet 521 is gradually reduced from top to bottom, with the upper diameter being, for example, 12 mm and the lower diameter being, for example, 10 mm. This arrangement prevents the air outlet 521 from becoming blocked.

[0046] In some embodiments, such as Figure 1 As shown, the above-mentioned spray assembly 3 includes a support frame 31 and a spray pipe 32. The support frame 31 is disposed between the packing layer 2 and the top of the spray tower body 1, that is, with... Figure 1 Taking the shown perspective as an example, the support frame 31 is disposed on the packing layer 2. The spray pipe 32 is connected to the side of the support frame 31 facing the packing layer 2, that is, the spray pipe 32 is disposed between the support frame 31 and the packing layer 2. A spraying element is provided on the side of the spray pipe 32 facing the packing layer 2. This spraying element is, for example, a nozzle. Of course, opening spray holes on the side of the spray pipe 32 facing the packing layer 2 can also achieve the spraying effect, and those skilled in the art can flexibly set it according to actual usage requirements. With such a setting, the spray assembly 3 can spray spray liquid towards the packing layer 2, which is simple in structure and convenient for installation and manufacturing.

[0047] In some embodiments, such as Figure 1 As shown, a baffle demister layer 6 is provided on the side of the support frame 31 facing away from the spray pipe 32. This baffle demister layer 6 contains zigzag-shaped plates. When the gas, after being treated by the packing layer 2 and the spray assembly 3, flows through the baffle demister layer 6, the droplets carried in the gas (which may contain dissolved contaminants or unreacted chemical spray liquid) will collide with the zigzag-shaped plates due to inertia and be captured by them. When too many droplets accumulate, they will form a water flow that re-flows into the spray tower body 1. This design prevents insufficiently demisted gas from affecting downstream equipment and causing subsequent processes to fail, while also ensuring that the discharged gas has no visible plume, thus improving the practicality of the spray tower.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A spray tower, characterized in that, include: The spray tower body (1) has a packing layer (2) inside; the gas to be treated can be passed between the packing layer (2) and the bottom of the spray tower body (1); The spray assembly (3) is disposed inside the spray tower body (1) and located between the packing layer (2) and the top of the spray tower body (1); the water outlet direction of the spray assembly (3) points to the packing layer (2). A liquid supply component (4) is disposed outside the main body (1) of the spray tower; the liquid supply component (4) can communicate with the spray component (3) to supply liquid to the spray component (3) so that the spray component (3) can perform spraying action; or, the liquid supply component (4) can communicate with the main body (1) of the spray tower to supply liquid to the interior of the main body (1) of the spray tower so that the liquid inside the main body (1) of the spray tower at least submerges the packing layer (2). An air blowing assembly (5) is at least partially disposed inside the spray tower body (1) and located between the packing layer (2) and the bottom of the spray tower body (1); the air blowing direction of the air blowing assembly (5) is directed towards the packing layer (2); the air blowing assembly (5) is capable of blowing air according to the state in which the packing layer (2) is submerged.

2. The spray tower according to claim 1, characterized in that, The air blowing assembly (5) includes an air supply component (51) and an air blowing pipe (52); The air supply component (51) is located outside the spray tower body (1); the air blowing pipe (52) is located inside the spray tower body (1) and between the packing layer (2) and the bottom of the spray tower body (1); the air blowing pipe (52) is connected to the air supply component (51); the air blowing pipe (52) has an air outlet (521) on the side facing the packing layer (2).

3. The spray tower according to claim 2, characterized in that, The air blowing pipeline (52) includes a main air blowing pipe (522) and multiple branch air blowing pipes (523); The main air blowing pipe (522) is connected to the air supply component (51); multiple air blowing branch pipes (523) are respectively connected to the main air blowing pipe (522); The main air blowing pipe (522) extends along the first direction (X1); the branch air blowing pipe (523) extends along the second direction (X2); the second direction (X2) is set at an angle to the first direction (X1).

4. The spray tower according to claim 3, characterized in that, The main air blowing pipe (522) passes through the center line of the main body (1) of the spray tower; multiple air blowing branch pipes (523) are respectively arranged on both sides of the main air blowing pipe (522) and are arranged symmetrically with the main air blowing pipe (522) as the axis of symmetry.

5. The spray tower according to claim 2, characterized in that, The number of air outlets (521) is multiple; the opening directions of two adjacent air outlets (521) are set at an angle.

6. The spray tower according to claim 2, characterized in that, On the third direction (X3), the diameter of the air outlet (521) is gradually changed; the third direction (X3) is vertical; the diameter of the end of the air outlet (521) near the packing layer (2) is larger than the diameter of the end of the air outlet (521) away from the packing layer (2).

7. The spray tower according to claim 1, characterized in that, The spray assembly (3) includes a support frame (31) and a spray pipe (32). The support frame (31) is disposed between the packing layer (2) and the top of the spray tower body (1); the spray pipe (32) is connected to the side of the support frame (31) facing the packing layer (2).

8. The spray tower according to claim 7, characterized in that, The support frame (31) is provided with a demisting layer (6) on the side away from the spray pipe (32).

9. The spray tower according to any one of claims 1 to 8, characterized in that, The liquid supply assembly (4) includes a liquid storage tank (41), a first liquid supply line (42), a second liquid supply line (43), and a liquid supply pump (44). One end of the first liquid supply pipeline (42) is connected to the liquid storage tank (41), and the other end is connected to the spray assembly (3); One end of the second liquid supply pipeline (43) is connected to the liquid storage tank (41), and the other end is connected to the interior of the spray tower body (1); The liquid supply pump (44) can deliver the liquid inside the storage tank (41) to the spray assembly (3) or the spray tower body (1).

10. The spray tower according to any one of claims 1 to 8, characterized in that, The packing layer (2) includes a packing support (21) and a packing tray (22); The packing support (21) is fixed inside the spray tower body (1) and is arranged parallel to the plane formed by the first direction (X1) and the second direction (X2); the second direction (X2) is arranged at an angle to the first direction (X1); The packing tray (22) is disposed on the packing support (21); the packing tray (22) is filled with packing.

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