ammonia scrubber

Abstract

The utility model belongs to ammonia recovery technical field, especially relates to washing ammonia tower, including tower body, installation shaft, liquid supply mechanism, bearing disc and bearing piece. The tower body has the accommodation cavity, and has the air inlet and the air outlet with the accommodation cavity intercommunication, the air inlet is located above the air outlet, the axial direction of tower body is parallel to the direction of gravity, the installation shaft is located in the accommodation cavity and is coaxial with the tower body and is connected, the liquid inlet between the air inlet and the air outlet has the liquid supply mechanism, the liquid supply mechanism is used for providing the adsorbent in the tower body, the bearing disc is set up in the installation shaft outside, is located between the liquid inlet and the air inlet, along the radial direction of tower body, the first gap between the outer peripheral wall of bearing disc and the inner peripheral wall of accommodation cavity is formed, and the bearing disc can receive the adsorbent, the bearing piece is protruding in the inner peripheral wall of accommodation cavity and is set up around the axis of tower body, the bearing piece is located between the air inlet of bearing disc, on the projection plane perpendicular to the axial direction of tower body, the orthographic projection of bearing piece covers the orthographic projection of first gap.

Description

Technical Field

[0001] This utility model belongs to the field of ammonia recovery technology, and specifically relates to an ammonia washing tower. Background Technology

[0002] The production of melamine and ammonium bicarbonate generates and consumes ammonia gas, but there is a possibility of ammonia leaking into the air. From an environmental perspective, to avoid harm to human health or environmental pollution from ammonia gas, it is necessary to treat ammonia-containing waste gas using an ammonia scrubbing tower. The basic principle of an ammonia scrubbing tower is to use adsorbents such as water or acidic solutions to contact the ammonia-containing gas, absorbing the ammonia through physical dissolution or chemical reaction, thereby purifying the gas.

[0003] In related technologies, ammonia washing towers mainly adopt spray or packed structures. Spray-type ammonia washing towers atomize the adsorbent through nozzles. Although the initial contact area is large, the droplets fall quickly, the residence time is short, and blind spots are prone to occur, resulting in incomplete absorption.

[0004] Therefore, how to improve the ammonia absorption efficiency of the ammonia washing tower has become an urgent technical problem to be solved. Utility Model Content

[0005] In view of the above problems, the embodiments of this application provide an ammonia washing tower, which can improve the ammonia absorption efficiency of the ammonia washing tower.

[0006] This application provides an ammonia washing tower, including a tower body, an mounting shaft, a liquid supply mechanism, a support plate, and a support member. The tower body has a receiving cavity and an air inlet and an air outlet communicating with the receiving cavity. The air inlet is located below the air outlet, and the axial direction of the tower body is parallel to the direction of gravity. The mounting shaft is located inside the receiving cavity and is coaxially arranged and connected to the tower body. The liquid supply mechanism has a liquid inlet located between the air inlet and the air outlet, and the liquid supply mechanism is used to supply adsorbent into the tower body. The support plate is sleeved outside the mounting shaft and located between the liquid inlet and the air inlet. Along the radial direction of the tower body, a first gap is formed between the outer peripheral wall of the support plate and the inner peripheral wall of the receiving cavity, and the support plate can receive the adsorbent. The support member protrudes from the inner peripheral wall of the receiving cavity and is arranged around the axis of the tower body. The support member is located below the support plate, and on a projection plane perpendicular to the axial direction of the tower body, the orthographic projection of the support member covers the orthographic projection of the first gap. The support member can receive adsorbent dripping from the outer periphery of the support plate.

[0007] Specifically, after the adsorbent flows out from the liquid supply mechanism, it falls onto the support plate to form a liquid layer, increasing the residence time of the adsorbent in the tower. After the support plate receives the adsorbent, the adsorbent drips along the outer edge of the support plate to form a first water curtain, and is then received by the support member and drips along the inner edge of the support member to form a second water curtain. Thus, ammonia is absorbed as the gas moves from the inlet to the outlet, passing through the second and first water curtains.

[0008] In the above technical solution, this application, by setting up a support plate and support components, ensures that ammonia-containing gas, after entering the tower body from the inlet, must sequentially pass through the first and second water curtains during its upward movement. Since each water curtain is composed of countless tiny droplets or liquid curtains, the gas needs to be squeezed through these liquid curtains to continue rising. During this process, the ammonia gas is fully absorbed by the adsorbent. This increases the gas-liquid contact area and contact time, thereby improving the ammonia absorption efficiency.

[0009] In some embodiments, a second gap is formed between the inner peripheral wall of the radial support member of the tower body and the outer peripheral wall of the mounting shaft. On a projection plane perpendicular to the axial direction of the tower body, the orthographic projection of the support plate covers the orthographic projection of the second gap. The support plates and support members are multiple sets arranged at intervals along the axial direction of the tower body. Along the axial direction, the support plate of the set closer to the air inlet in two adjacent sets of support plates and support members is used to carry the adsorbent dripping from the inner circumference of the other set of support members.

[0010] In the above technical solution, by setting multiple sets of bearing plates and bearing components, the residence time of the adsorbent in the tower body is further increased. At the same time, the number of first and second water curtains that ammonia-containing gas needs to pass through in sequence during its upward movement from the inlet into the tower body is further increased, thereby further improving the ammonia absorption efficiency.

[0011] In some embodiments, the ammonia washing tower further includes a first gas equalization plate, which is connected to the tower body and located in the receiving cavity to divide the receiving cavity into a first cavity and a second cavity arranged along the axial direction. The first gas equalization plate is provided with a first through hole connecting the first cavity and the second cavity. The first cavity is located above the second cavity, and the gas outlet is connected to the first cavity. The mounting shaft is located in the second cavity, and one end of the mounting shaft is connected to the first gas equalization plate.

[0012] In the above technical solution, the first gas equalization plate plays a role in gas homogenization, reducing the risk that insufficiently absorbed gas will be discharged due to excessively rapid local airflow into the first chamber. Simultaneously, the first gas equalization plate connects the mounting shaft and the tower body, eliminating the need for additional connecting mechanisms and simplifying the structure of the ammonia washing tower.

[0013] In some embodiments, the liquid supply mechanism includes a nozzle located within a first cavity and having a liquid inlet, the nozzle being used to supply atomized adsorbent into the first cavity.

[0014] In the above technical solution, the adsorbent is provided by a nozzle atomization, which can disperse the liquid into fine droplets, increase the gas-liquid contact surface area, and further improve the overall absorption efficiency of ammonia.

[0015] In some embodiments, the surface of the first gas equalization plate facing the first cavity is a first spherical surface, the center of curvature of the first spherical surface is located on the side of the first gas equalization plate facing the first cavity and is located on the extension line of the axis of the mounting shaft; on the projection plane perpendicular to the axial direction of the tower body, the orthographic projection of the bearing plate covers the orthographic projection of the first through hole.

[0016] In the above technical solution, by making the surface of the first gas equalization plate facing the first cavity a first spherical surface, with the center of curvature of the first spherical surface located on the side of the first gas equalization plate facing the first cavity and on the extension line of the axis of the mounting shaft, the surface of the first gas equalization plate facing the first cavity can guide the adsorbent to move towards the axis closer to the tower body after receiving the adsorbent, thereby facilitating the adsorbent to enter the second cavity from the first through hole. Simultaneously, since the orthographic projection of the support plate overlaps the orthographic projection of the first through hole on the projection plane perpendicular to the axial direction of the tower body, the support plate can better receive the adsorbent entering the second cavity from the first through hole, thereby facilitating the formation of the first water curtain.

[0017] In some embodiments, the ammonia washing tower further includes a second gas equalization plate, which is connected to the tower body and located within the receiving cavity to divide the receiving cavity into a second cavity and a third cavity arranged along the axial direction. The second gas equalization plate is provided with a second through hole connecting the second cavity and the third cavity. The second cavity is located above the third cavity, and its air inlet is connected to the third cavity. An installation shaft is located within the second cavity, and one end of the installation shaft is connected to the second gas equalization plate.

[0018] In the above technical solution, the second gas equalization plate plays a role in gas homogenization, reducing the risk of insufficient ammonia absorption due to excessively rapid local airflow into the second chamber. Simultaneously, the second gas equalization plate connects the mounting shaft and the tower body, eliminating the need for additional connecting mechanisms and simplifying the structure of the ammonia washing tower. Especially when one end of the mounting shaft is connected to the first gas equalization plate and the other end to the second gas equalization plate, the overall structural strength of the mounting shaft is improved, reducing the risk of axial movement.

[0019] In some embodiments, the surface of the second gas equalization plate facing the third cavity is a second sphere, the center of curvature of the second sphere is located on the side of the second gas equalization plate facing the third cavity and is located on the extension line of the axis of the mounting shaft; on the projection plane perpendicular to the axial direction of the tower body, the orthographic projection of the bearing plate covers the orthographic projection of the second through hole.

[0020] In the above technical solution, the center of curvature of the second spherical surface is located on the side of the second gas equalization plate facing the third cavity and on the extension line of the mounting shaft. This effectively guides gas diffusion, generating a guiding force for the gas entering the ammonia washing tower to diffuse in all directions, allowing the gas to enter the second cavity more quickly and evenly, reducing gas flow deviation. Simultaneously, on the projection plane perpendicular to the tower's axial direction, the orthogonal projection of the bearing plate overlaps the orthogonal projection of the second through hole, preventing some gas from moving towards the outlet without passing through any water curtain, further improving the ammonia absorption efficiency.

[0021] In some embodiments, the tower body includes a main body and a constriction section. The main body has an air inlet and an air outlet. The constriction section is located below the main body and connected to the main body. Along the direction of gravity, the radial dimension of the constriction section gradually decreases. The end of the constriction section away from the main body is provided with a liquid outlet communicating with the receiving cavity.

[0022] In the above technical solution, by setting a contraction section to guide the adsorbent, the adsorbent flows towards the outlet under its own weight, reducing the risk of the adsorbent remaining at the bottom of the tower.

[0023] In some embodiments, a first receiving groove is provided on the side of the support plate facing the liquid inlet along the axial direction. The first receiving groove is arranged around the axis of the mounting shaft and is used to contain the adsorbent.

[0024] In the above technical solution, the first receiving tank provides additional liquid storage space for the carrier plate, which can temporarily store a certain amount of adsorbent, thereby helping to improve the continuity and uniformity of the first water curtain.

[0025] In some embodiments, a second receiving groove is provided on the side of the carrier facing the liquid inlet along the axial direction. The second receiving groove is arranged around the axis of the mounting shaft and is used to contain the adsorbent.

[0026] In the above technical solution, the second receiving tank provides additional liquid storage space for the carrier plate, which can temporarily store a certain amount of adsorbent, thereby helping to improve the continuity and uniformity of the second water curtain. Attached Figure Description

[0027] 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.

[0028] Figure 1 A three-dimensional structural schematic diagram of an ammonia washing tower provided in some embodiments of this application; Figure 2A cross-sectional view of an ammonia washing tower provided in some embodiments of this application; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the structure of a first air distribution plate, a mounting shaft, and a second air distribution plate provided in some embodiments of this application.

[0029] In the picture: 1000-Ammonia washing tower; 100-Tower body; 10-Main body; 11-Air inlet; 12-Air outlet; 13-Liquid outlet; 20-Contraction section; 110-Receiving cavity; 110A-First cavity; 110B-Second cavity; 110C-Third cavity; 200-Mounting shaft; 300-Liquid supply mechanism; 310-Liquid inlet; 400-Bearing plate; 410-First gap; 420-First receiving tank; 500-Bearing component; 510-Second gap; 520-Second receiving tank; 600-First gas distribution plate; 610-First through hole; 620-First spherical surface; 700-Second gas distribution plate; 710-Second through hole; 720-Second spherical surface; 2000-First water curtain; 3000-Second water curtain. Detailed Implementation

[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0031] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Reference Figures 1-4 This application provides an ammonia washing tower 1000, including a tower body 100, a mounting shaft 200, a liquid supply mechanism 300, a support plate 400, and a support member 500. The tower body 100 has a receiving cavity 110 and an air inlet 11 and an air outlet 12 communicating with the receiving cavity 110. The air inlet 11 is located below the air outlet 12, and the axial direction of the tower body 100 is parallel to the direction of gravity. The mounting shaft 200 is located within the receiving cavity 110 and is coaxially arranged and connected to the tower body 100. The liquid supply mechanism 300 has a liquid inlet 310 located between the air inlet 11 and the air outlet 12, and the liquid supply mechanism 300 is used to supply adsorbent into the tower body 100. The support plate 400 is sleeved outside the mounting shaft 200 and located between the liquid inlet 310 and the air outlet 500. Between the openings 11, along the radial direction of the tower body 100, a first gap 410 is formed between the outer peripheral wall of the support plate 400 and the inner peripheral wall of the receiving cavity 110, and the support plate 400 can receive the adsorbent; the support member 500 protrudes from the inner peripheral wall of the receiving cavity 110 and is arranged around the axis of the tower body 100. The support member 500 is located below the support plate 400. On the projection plane perpendicular to the axis of the tower body 100, the orthographic projection of the support member 500 covers the orthographic projection of the first gap 410, and the support member 500 can receive the adsorbent dripping from the outer periphery of the support plate 400.

[0035] It should be noted that the adsorbent is water or a dilute acid solution.

[0036] Specifically, after the adsorbent flows out from the liquid supply mechanism 300, it falls onto the support plate 400 to form a liquid layer, increasing the residence time of the adsorbent in the tower body 100. After the support plate 400 receives the adsorbent, the adsorbent drips along the outer edge of the support plate 400 to form a first water curtain 2000, and is then received by the support member 500 and drips along the inner edge of the support member 500 to form a second water curtain 3000. Thus, ammonia is absorbed when the gas moves from the inlet 11 to the outlet 12 to pass through the second water curtain 3000 and the first water curtain 2000.

[0037] In this technical solution, by setting up a support plate 400 and a support component 500, the ammonia-containing gas enters the tower body 100 from the inlet 11 and, during its upward movement, must sequentially pass through the second water curtain 3000 and the first water curtain 2000. Since each water curtain is composed of countless tiny droplets or liquid curtains, the gas needs to be squeezed through these liquid curtains to continue rising. During this process, the ammonia gas is fully absorbed by the adsorbent. This increases the gas-liquid contact area and contact time, thereby improving the ammonia absorption efficiency.

[0038] Please refer to Figure 2 and Figure 3 According to some embodiments of this application, a second gap 510 is formed between the inner peripheral wall of the radial support member 500 of the tower body 100 and the outer peripheral wall of the mounting shaft 200. On the projection plane perpendicular to the axial direction of the tower body 100, the orthographic projection of the support plate 400 covers the orthographic projection of the second gap 510. The support plates 400 and the support members 500 are multiple sets arranged at intervals along the axial direction of the tower body 100. Along the axial direction, the support plate 400 of the set of two adjacent sets of support plates 400 and support members 500 that is closer to the air inlet 11 is used to carry the adsorbent dripping from the inner periphery of the other set of support members 500.

[0039] In this technical solution, by setting multiple sets of bearing plates 400 and bearing components 500, the residence time of the adsorbent in the tower body 100 is further increased. At the same time, the number of first water curtains 2000 and second water curtains 3000 that the ammonia-containing gas needs to pass through in sequence during its upward movement from the inlet 11 into the tower body 100 is further increased, thereby further improving the ammonia absorption efficiency.

[0040] Please refer to Figure 2 and Figure 4 According to some embodiments of this application, the ammonia washing tower 1000 further includes a first gas equalization plate 600, which is connected to the tower body 100 and located in the receiving cavity 110 to divide the receiving cavity 110 into a first cavity 110A and a second cavity 110B arranged along the axial direction. The first gas equalization plate 600 is provided with a first through hole 610 connecting the first cavity 110A and the second cavity 110B. The first cavity 110A is located above the second cavity 110B. The gas outlet 12 is connected to the first cavity 110A. The mounting shaft 200 is located in the second cavity 110B, and one end of the mounting shaft 200 is connected to the first gas equalization plate 600.

[0041] The first gas equalization plate 600 is a plate structure disposed inside the tower body 100, used to rectify and uniformly distribute the gas. The first gas equalization plate 600 improves airflow distribution and reduces flow deviation within the tower. The first cavity 110A is the space located above the first gas equalization plate 600. The second cavity 110B is the space located below the first gas equalization plate 600, where the support plate 400 and the support member 500 are located. The first through hole 610 is a vent hole formed on the first gas equalization plate 600, allowing gas to enter the first cavity 110A from the second cavity 110B.

[0042] In this technical solution, the first gas equalization plate 600 plays a role in gas equalization, reducing the risk that insufficiently absorbed gas will be discharged due to excessively rapid local airflow into the first cavity 110A. At the same time, the first gas equalization plate 600 connects the mounting shaft 200 and the tower body 100, thus eliminating the need for additional connecting mechanisms and simplifying the structure of the ammonia washing tower 1000.

[0043] Please refer to Figure 2 According to some embodiments of this application, the liquid supply mechanism 300 includes a nozzle (not shown in the figure), which is located in the first cavity 110A and has a liquid inlet 310. The nozzle is used to supply atomized adsorbent into the first cavity 110A.

[0044] In some embodiments, the liquid supply mechanism 300 further includes a liquid supply pump, which is disposed outside the tower body 100. The liquid supply pump inlet 310 is connected to the adsorbent source, and the liquid supply pump inlet 310 is connected to the nozzle via a pipeline. The liquid supply pump is used to drive the adsorbent to move towards the nozzle.

[0045] In this technical solution, the adsorbent is provided by a nozzle atomization, which can disperse the liquid into fine droplets, increase the gas-liquid contact surface area, and further improve the overall absorption efficiency of ammonia.

[0046] Please refer to Figure 2 and Figure 4 According to some embodiments of this application, the surface of the first gas equalization plate 600 facing the first cavity 110A is a first spherical surface 620, the center of curvature of the first spherical surface 620 is located on the side of the first gas equalization plate 600 facing the first cavity 110A, and is located on the extension line of the axis of the mounting shaft 200; on the projection plane perpendicular to the axis of the tower body 100, the orthographic projection of the bearing plate 400 covers the orthographic projection of the first through hole 610.

[0047] In this technical solution, the surface of the first gas equalization plate 600 facing the first cavity 110A is shaped into a first spherical surface 620. The center of curvature of the first spherical surface 620 is located on the side of the first gas equalization plate 600 facing the first cavity 110A and on the extension line of the axis of the mounting shaft 200. This allows the surface of the first gas equalization plate 600 facing the first cavity 110A to guide the adsorbent towards the axis of the tower body 100 after receiving the adsorbent, thus facilitating the adsorbent to enter the second cavity 110B from the first through hole 610. Simultaneously, since the orthographic projection of the support plate 400 covers the orthographic projection of the first through hole 610 on the projection plane perpendicular to the axial direction of the tower body 100, the support plate 400 can better receive the adsorbent entering the second cavity 110B from the first through hole 610, thereby facilitating the formation of the first water curtain 2000.

[0048] Please refer to Figure 2 and Figure 4 According to some embodiments of this application, the ammonia washing tower 1000 further includes a second gas equalization plate 700, which is connected to the tower body 100 and located in the receiving cavity 110 to divide the receiving cavity 110 into a second cavity 110B and a third cavity 110C arranged along the axial direction. The second gas equalization plate 700 is provided with a second through hole 710 connecting the second cavity 110B and the third cavity 110C. The second cavity 110B is located above the third cavity 110C, and the air inlet 11 is connected to the third cavity 110C. The mounting shaft 200 is located in the second cavity 110B, and one end of the mounting shaft 200 is connected to the second gas equalization plate 700.

[0049] The second gas equalization plate 700 is a plate structure installed inside the tower body 100, used for preliminary rectification of the incoming ammonia-containing gas. The third chamber 110C is the space located below the second gas equalization plate 700. The second through hole 710 is a vent hole opened on the second gas equalization plate 700, allowing gas to enter the second chamber 110B from the third chamber 110C.

[0050] In some embodiments, the ammonia washing tower 1000 includes a first gas equalization plate 600 and a second gas equalization plate 700, which are arranged axially, with the first gas equalization plate 600 located above the second gas equalization plate 700. The first and second gas equalization plates 600 and 700 divide the receiving cavity 110 into a first cavity 110A, a second cavity 110B, and a third cavity 110C arranged along the direction of gravity. The two ends of the mounting shaft 200 in the axial direction are respectively connected to the first gas equalization plate 600 and the second gas equalization plate 700.

[0051] In this technical solution, the second gas equalization plate 700 serves to equalize the gas flow, reducing the risk of insufficient ammonia absorption due to excessively rapid local airflow into the second chamber 110B. Simultaneously, the second gas equalization plate 700 connects the mounting shaft 200 and the tower body 100, eliminating the need for additional connecting mechanisms and simplifying the structure of the ammonia washing tower 1000. Especially when one end of the mounting shaft 200 is connected to the first gas equalization plate 600 and the other end to the second gas equalization plate 700, the overall structural strength of the mounting shaft 200 is improved, reducing the risk of axial movement of the mounting shaft 200.

[0052] Please refer to Figure 2 and Figure 4 According to some embodiments of this application, the surface of the second gas equalization plate 700 facing the third cavity 110C is a second spherical surface 720. The center of curvature of the second spherical surface 720 is located on the side of the second gas equalization plate 700 facing the third cavity 110C and is located on the extension line of the axis of the mounting shaft 200. On the projection plane perpendicular to the axial direction of the tower body 100, the orthographic projection of the bearing plate 400 covers the orthographic projection of the second through hole 710.

[0053] In this technical solution, the center of curvature of the second spherical surface 720 is located on the side of the second gas equalization plate 700 facing the third cavity 110C, and is located on the extension line of the axis of the mounting shaft 200. This can better guide gas diffusion and generate a guiding force for the gas entering the ammonia washing tower 1000 to diffuse in all directions, so that the gas enters the second cavity 110B more quickly and evenly, reducing gas flow deviation. At the same time, on the projection plane perpendicular to the axis of the tower body 100, the orthogonal projection of the bearing plate 400 covers the orthogonal projection of the second through hole 710, which can prevent some gas from moving to the gas outlet 12 without passing through any water curtain, further improving the ammonia absorption efficiency.

[0054] Please refer to Figure 2 According to some embodiments of this application, the tower body 100 includes a main body 10 and a contraction section 20. The main body 10 has an air inlet 11 and an air outlet 12. The contraction section 20 is located below the main body 10 and connected to the main body 10. Along the direction of gravity, the radial dimension of the contraction section 20 gradually decreases. The end of the contraction section 20 away from the main body 10 is provided with a liquid outlet 13 that communicates with the receiving cavity 110.

[0055] In this technical solution, by setting a contraction section 20 to guide the adsorbent, the adsorbent flows towards the liquid outlet 13 under its own weight, reducing the risk of the adsorbent remaining at the bottom of the tower body 100.

[0056] Please refer to Figure 4According to some embodiments of this application, along the axial direction, a first receiving groove 420 is provided on the side of the bearing disk 400 facing the liquid inlet 310. The first receiving groove 420 is arranged around the axis of the mounting shaft 200 and is used to contain the adsorbent.

[0057] In this technical solution, the first receiving tank 420 provides additional liquid storage space for the carrier plate 400, which can temporarily store a certain amount of adsorbent, thereby helping to improve the continuity and uniformity of the first water curtain 2000.

[0058] Please refer to Figure 4 According to some embodiments of this application, along the axial direction, a second receiving groove 520 is provided on the side of the carrier 500 facing the liquid inlet 310. The second receiving groove 520 is arranged around the axis of the mounting shaft 200 and is used to contain the adsorbent.

[0059] In this technical solution, the second receiving tank 520 provides additional liquid storage space for the carrier plate 400, which can temporarily store a certain amount of adsorbent, thereby helping to improve the continuity and uniformity of the second water curtain 3000.

[0060] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0061] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An ammonia washing tower, characterized in that, include: The tower body has a receiving cavity and an air inlet and an air outlet communicating with the receiving cavity. The air inlet is located below the air outlet, and the axial direction of the tower body is parallel to the direction of gravity. The mounting shaft is located inside the receiving cavity and is coaxially arranged and connected to the tower body; A liquid supply mechanism has a liquid inlet located between the air inlet and the air outlet, the liquid supply mechanism being used to supply adsorbent into the tower body; A support plate is sleeved outside the mounting shaft and located between the liquid inlet and the air inlet. Along the radial direction of the tower body, a first gap is formed between the outer peripheral wall of the support plate and the inner peripheral wall of the receiving cavity. The support plate is capable of receiving the adsorbent. A support member protrudes from the inner peripheral wall of the receiving cavity and is arranged around the axis of the tower body. The support member is located below the support plate. On the projection plane perpendicular to the axis of the tower body, the orthographic projection of the support member covers the orthographic projection of the first gap. The support member is capable of receiving the adsorbent dripping from the outer periphery of the support plate.

2. The ammonia washing tower according to claim 1, characterized in that, A second gap is formed between the inner peripheral wall of the support member and the outer peripheral wall of the mounting shaft along the radial direction of the tower body. On the projection plane perpendicular to the axial direction of the tower body, the orthographic projection of the support plate covers the orthographic projection of the second gap. The support plate and the support member are arranged in multiple sets at intervals along the axial direction of the tower body. Along the axial direction, the support plate of the set of two adjacent sets of support plates and the support member that is closer to the air inlet is used to carry the adsorbent dripping from the inner circumference of the other set of support members.

3. The ammonia washing tower according to claim 1, characterized in that, The ammonia washing tower also includes: A first gas equalization plate is connected to the tower body and is located inside the receiving cavity to divide the receiving cavity into a first cavity and a second cavity arranged along the axial direction. The first gas equalization plate is provided with a first through hole connecting the first cavity and the second cavity. The first cavity is located above the second cavity. The gas outlet is connected to the first cavity. The mounting shaft is located inside the second cavity, and one end of the mounting shaft is connected to the first gas equalization plate.

4. The ammonia washing tower according to claim 3, characterized in that, The liquid supply mechanism includes: A nozzle, located within the first cavity and having the liquid inlet, is used to supply atomized adsorbent into the first cavity.

5. The ammonia washing tower according to claim 3, characterized in that, The surface of the first air distribution plate facing the first cavity is a first spherical surface, and the center of curvature of the first spherical surface is located on the side of the first air distribution plate facing the first cavity and on the extension line of the axis of the mounting shaft. On a projection plane perpendicular to the axial direction of the tower body, the orthographic projection of the bearing plate overlaps the orthographic projection of the first through hole.

6. The ammonia washing tower according to any one of claims 1-5, characterized in that, The ammonia washing tower also includes: The second gas equalization plate is connected to the tower body and is located inside the receiving cavity to divide the receiving cavity into a second cavity and a third cavity arranged along the axial direction. The second gas equalization plate is provided with a second through hole connecting the second cavity and the third cavity. The second cavity is located above the third cavity. The air inlet is connected to the third cavity. The mounting shaft is located inside the second cavity, and one end of the mounting shaft is connected to the second gas equalization plate.

7. The ammonia washing tower according to claim 6, characterized in that, The surface of the second air distribution plate facing the third cavity is a second spherical surface, and the center of curvature of the second spherical surface is located on the side of the second air distribution plate facing the third cavity and on the extension line of the axis of the mounting shaft. On a projection plane perpendicular to the axial direction of the tower body, the orthographic projection of the bearing plate overlaps the orthographic projection of the second through hole.

8. The ammonia washing tower according to any one of claims 1-5, characterized in that, The tower body includes a main body and a contraction section. The main body has an air inlet and an air outlet. The contraction section is located below the main body and connected to the main body. Along the direction of gravity, the radial dimension of the contraction section gradually decreases. The end of the contraction section away from the main body is provided with a liquid outlet communicating with the receiving cavity.

9. The ammonia washing tower according to any one of claims 1-5, characterized in that, Along the axial direction, a first receiving groove is provided on the side of the support plate facing the liquid inlet. The first receiving groove is arranged around the axis of the mounting shaft and is used to contain the adsorbent.

10. The ammonia washing tower according to any one of claims 1-5, characterized in that, Along the axial direction, a second receiving groove is provided on the side of the support member facing the liquid inlet. The second receiving groove is arranged around the axis of the mounting shaft and is used to receive the adsorbent.

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