An ammonia recovery device for synthetic ammonia production

Abstract

The application discloses a kind of ammonia recovery device for synthetic ammonia production, it is related to ammonia recovery technical field, including recovery tower, the bottom of recovery tower is connected with input pipe, water tank is installed outside the recovery tower, the inside storage of water tank has spray liquid, the top of recovery tower is symmetrically connected with output pipe, dynamic spray mechanism is arranged in the inside of recovery tower, water delivery part is installed below drive motor, using the division of labor of fixed spray pipe and movable spray pipe, different regions in recovery tower can be covered, avoid the possible coverage blind area of traditional single spray mode, ensure that ammonia-containing gas can be fully contacted with spray liquid at each position in tower, greatly improve ammonia absorption efficiency, on the other hand, movable spray pipe reciprocating rotation regularly, break the limitation of static spray, enhance the disturbance of gas-liquid two-phase by dynamic spray, increase contact area and mass transfer efficiency, help to improve ammonia recovery concentration and recovery rate.

Description

Technical Field

[0001] This invention relates to the field of ammonia recovery technology, specifically to an ammonia recovery device for synthetic ammonia production. Background Technology

[0002] The ammonia recovery unit in ammonia synthesis aims to improve resource utilization and reduce production costs. In the process of ammonia synthesis, if the ammonia-containing mixed gas is directly emitted, it will not only waste ammonia resources but also pollute the environment. The ammonia recovery unit can effectively reduce ammonia emissions, improve ammonia recovery rate, reduce enterprise production costs, and help achieve green and low-carbon production goals.

[0003] However, existing technologies still have the following drawbacks in practical applications:

[0004] 1. Compared with existing ammonia recovery devices, which mostly use fixed single-type nozzles with a fixed nozzle layout and lack dynamic adjustment capabilities for spray angle and range, this static structural design means that the spray path and coverage area cannot be changed after installation, making it difficult to adapt to the gas distribution differences in different areas inside the recovery tower. At the same time, due to the limitations of traditional design concepts, there is a lack of consideration for dynamic disturbances in the gas-liquid two-phase system. Mass transfer is carried out solely by natural contact between the gas and the spray liquid, which makes it difficult to fully utilize the mass transfer efficiency.

[0005] The limitations of a single static spray structure bring multiple negative effects to ammonia recovery. First, the fixed spray pattern easily creates spray blind zones within the recovery tower, especially at the corners of the tower and in areas of abrupt changes in gas flow rate. A large amount of ammonia-containing gas cannot fully contact the spray liquid, leading to a significant decrease in ammonia absorption efficiency. This incomplete absorption directly affects the overall recovery rate, resulting in a waste of ammonia resources and increased production costs. Second, due to the lack of a dynamic disturbance mechanism, the gas and liquid phases rely solely on natural diffusion for mass transfer. The actual contact area is far lower than the theoretical value, making the mass transfer process slow and inefficient. This not only makes it difficult to achieve the ideal concentration of recovered ammonia, increasing the difficulty of subsequent purification processes, but also may cause some ammonia to be discharged with the exhaust gas due to insufficient mass transfer, causing environmental pollution and further reducing the economic efficiency and practicality of the equipment.

[0006] 2. Meanwhile, in existing ammonia recovery devices, the filter plate structure is also relatively simple when processing dust- and ammonia-containing gases. On the one hand, the filter plates usually adopt a fixed planar structure, relying solely on static filtration to intercept particulate matter without actively cleaning impurities. As the processing time increases, particles in the dust- and ammonia-containing gas continuously accumulate on the filter plate surface, and the pressure of the gas continuously passing through the filter plate will compact these particles, further aggravating the blockage. On the other hand, the filter plates are mostly rigidly connected to other parts of the equipment. Unavoidable processing errors and installation errors during manufacturing and installation, as well as minor deformations caused by temperature changes and mechanical vibrations during equipment operation, will all cause stress concentration on the filter plates and connecting parts. In addition, in terms of airflow guidance design, traditional devices handle the airflow below the filter plates in a relatively crude manner, without effectively guiding and optimizing the airflow. This results in uneven flow velocity and direction of the dust- and ammonia-containing gas before passing through the filter plates. Larger particles will directly impact the filter plates at higher speeds, accelerating the blockage. Uneven airflow will also cause excessive local filtration load, reducing the overall filtration efficiency.

[0007] First, the continuous accumulation and blockage of impurities on the filter plate surface significantly increases the resistance to gas passage, leading to increased internal pressure. This excessive pressure can affect the stable operation of the entire recovery system and even cause equipment failure. Second, filter plate blockage drastically reduces filtration efficiency, preventing some dust- and ammonia-containing gases from being effectively filtered and absorbed, thus lowering the quality and efficiency of ammonia recovery and increasing the burden on subsequent processing steps. Third, the stress concentration caused by rigid connections accelerates the damage to filter plates and connecting components, shortening the equipment's lifespan. Frequent repairs and component replacements not only increase maintenance costs but also prolong equipment downtime, affecting production progress. Finally, uneven airflow distribution below the filter plate results in significant differences in filtration pressure across different areas, further exacerbating local blockage and hindering sufficient contact between dust- and ammonia-containing gases and the absorbent liquid, thus reducing the overall recovery effect.

[0008] Therefore, in view of this, the present invention proposes an ammonia recovery device for synthetic ammonia production to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides an ammonia recovery device for ammonia synthesis production, thereby resolving the technical issues raised in the background section.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an ammonia recovery device for synthetic ammonia production, comprising a recovery tower, an input pipe connected to the bottom of the recovery tower, a water tank installed outside the recovery tower, a spray liquid stored inside the water tank, an output pipe symmetrically connected to the top of the recovery tower, and a dynamic spraying mechanism installed inside the recovery tower.

[0011] The dynamic spraying mechanism includes a drive motor installed at the top of the recycling tower, a water conveying component installed below the drive motor, and fixed spray pipes and movable spray pipes evenly installed below the water conveying component. The fixed spray pipes and movable spray pipes cooperate to provide a full-coverage spraying area inside the recycling tower.

[0012] Furthermore, a limiting frame is fixedly connected to the top of the recycling tower, and the drive motor is movably connected to the top position of the recycling tower through the limiting frame. The drive motor is specifically a stepper motor, and after starting, the output shaft can reciprocate clockwise and counterclockwise.

[0013] Furthermore, the water conveying component is composed of no fewer than three annular chambers, which are connected by branch pipes, and the outermost annular chamber of the water conveying component is connected to the water tank.

[0014] Furthermore, the fixed nozzle is fixedly connected to the lower surfaces of the two inner annular chambers in the water conveying component, and the movable nozzle is rotatably connected to the lower surface of the outermost annular chamber in the water conveying component, and both the fixed nozzle and the movable nozzle are kept in communication with the water conveying component.

[0015] Furthermore, the lower part of the movable nozzle is spherical, and circular holes are evenly provided at the spherical position in the movable nozzle. A driven gear is fixedly connected to the outer wall of the movable nozzle, and a drive gear ring meshes with the outside of the driven gear. The drive gear ring is rotatably connected to the inner wall of the recovery tower.

[0016] Furthermore, a connecting frame is fixedly connected to the upper surface of the drive gear ring, and the end of the connecting frame away from the drive gear ring is slidably connected to the outer wall of the output shaft end of the drive motor.

[0017] Furthermore, the recycling tower is equipped with a vibration filtering mechanism, which includes an assembly shaft sleeved on the outside of the output shaft of the drive motor. A cross shaft is fixedly connected to the lower surface of the assembly shaft, and a threaded shaft is installed below the assembly shaft. A cross groove is opened on the upper surface of the threaded shaft at the position corresponding to the cross shaft. The assembly shaft and the threaded shaft are slidably connected through the cross shaft and the cross groove.

[0018] Furthermore, the outer wall of the threaded shaft is threaded with a threaded collar, and the threaded shaft and the threaded collar form a ball screw structure, and in the initial state, the threaded collar is located at the uppermost end of the threaded shaft.

[0019] Furthermore, a fixing rod is symmetrically fixedly connected to the lower surface of the threaded collar, and a curved filter plate is fixedly connected to the end of the fixing rod away from the threaded collar. A flow guide assembly is fixedly connected to the lower surface of the curved filter plate, and the flow guide assembly is composed of multiple conical columns.

[0020] Furthermore, a double-ring plate is installed on the outer wall of the curved filter plate. The double-ring plate is composed of two circular ring pieces, and the curved filter plate is fixedly connected to the upper circular ring piece in the double-ring plate. A sliding shaft is uniformly slidably connected inside the double-ring plate. Springs are sleeved on the outer wall of each sliding shaft, and the two ends of the springs are fixedly connected to the upper and lower circular ring pieces, respectively.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) By introducing a dynamic spraying mechanism, this device can achieve targeted coverage of different areas in the recovery tower by utilizing the division of labor and cooperation between fixed and movable spraying pipes, avoiding the coverage blind spots that may exist in the traditional single spraying method, ensuring that ammonia-containing gas can fully contact the spraying liquid at various locations in the tower, and greatly improving the ammonia absorption efficiency. On the other hand, the regular reciprocating rotation of the movable spraying pipe breaks the limitations of static spraying, and enhances the disturbance of the gas-liquid two phases through dynamic spraying, increasing the contact area and mass transfer efficiency, which helps to improve the recovery concentration and recovery rate of ammonia.

[0023] The movable nozzle has a spherical shape at the bottom. During actual rotation, the spherical shape reduces the fluid resistance of the movable nozzle, making the rotation smoother and more flexible. This reduces equipment wear and increased energy consumption caused by excessive resistance, thereby extending the service life of the equipment and reducing operating costs. At the same time, the spherical shape helps the spray liquid to form a more uniform dispersion at the nozzle outlet, avoiding local spraying that is too dense or too sparse, and enhancing the absorption effect of ammonia gas around the recovery tower.

[0024] The drive motor is movably connected to the top of the recovery tower via a limiting frame. In practical applications, this easy-to-disassemble and install connection method greatly reduces the maintenance difficulty and time cost of the equipment. When the equipment malfunctions or needs to be repaired or parts replaced, the staff can quickly remove the drive motor from the top of the recovery tower without complicated tools or cumbersome operating procedures, effectively reducing downtime and ensuring the continuity of production. In addition, the movable connection method also allows the drive motor to flexibly adjust its position and angle according to actual operating needs, ensuring that the dynamic spray structure always maintains the best working condition, further improving the operational stability and reliability of the entire ammonia recovery device.

[0025] (2) Compared with the existing technology, when treating dust-containing and ammonia-containing gases, the filter plate surface is prone to clogging due to the accumulation of impurities. This device, while driving the motor, converts the rotational motion into linear motion through the ball screw structure composed of the threaded shaft and threaded collar, driving the curved filter plate to move back and forth in a linear motion. The combination of spring and sliding shaft makes the filter plate vibrate locally, which effectively prevents the accumulation of particulate matter on the filter plate surface, keeps the filter plate in good permeability, and greatly extends the cleaning cycle and service life of the filter plate. At the same time, the combination of reciprocating linear motion and vibration avoids the problem of uneven airflow distribution caused by local clogging.

[0026] The sliding connection between the assembly shaft and the threaded shaft, formed by a cross shaft and a cross groove, allows for a certain axial displacement and angular deviation between them in actual use. This effectively compensates for minor deformations caused by machining errors, installation errors, or equipment operation, avoiding stress concentration and component damage that may result from rigid connections. This extends the service life of the equipment and ensures the long-term stable operation of the system.

[0027] The flow guide assembly, which is fixedly connected to the lower surface of the curved filter plate, is composed of multiple conical columns. The conical column structure can change the flow state of the airflow below the filter plate, so that the dust- and ammonia-containing gas forms a more uniform distribution before passing through the filter plate. In addition, the tip of the conical column can guide the particulate matter in the airflow, making it easier for larger particles to be intercepted on the surface of the filter plate, rather than directly impacting the filter plate and causing blockage, thus further enhancing the filter plate's anti-clogging ability.

[0028] (3) The dynamic spraying mechanism can remove most of the ammonia and larger particulate impurities by washing the ammonia-containing gas, reducing the burden on the subsequent filtration process; while the vibration and reciprocating motion of the vibrating filter structure not only prevents itself from clogging, but also makes the liquid film distribution on the surface of the filter plate more uniform, further enhancing the absorption effect of residual ammonia and improving the ammonia recovery efficiency. This linkage also realizes the efficient use of equipment space, realizes two functions through the same drive motor, simplifies the equipment structure, and reduces energy consumption and equipment investment costs. Attached Figure Description

[0029] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the recovery tower of the present invention;

[0031] Figure 3 This is a three-dimensional structural diagram of the dynamic spraying mechanism of the present invention;

[0032] Figure 4This is a top-view three-dimensional structural diagram of the dynamic spraying mechanism of the present invention;

[0033] Figure 5 For the present invention Figure 4 A magnified three-dimensional structural diagram of a portion of point A in the middle;

[0034] Figure 6 This is a bottom-view three-dimensional structural diagram of the dynamic spraying mechanism of the present invention;

[0035] Figure 7 This is a three-dimensional structural diagram of the vibration filtering mechanism of the present invention;

[0036] Figure 8 This is an exploded view of the vibration filtering mechanism of the present invention;

[0037] Figure 9 This is a schematic diagram of the three-dimensional structure of the curved filter plate of the present invention;

[0038] The numbers on the map are:

[0039] 1. Recovery tower; 11. Input pipe; 12. Water tank; 13. Output pipe;

[0040] 2. Dynamic spraying mechanism; 21. Limiting frame; 22. Drive motor; 23. Water conveying component; 24. Fixed spray pipe; 25. Movable spray pipe; 2501. Circular hole; 26. Driven gear; 27. Drive gear ring; 28. Connecting frame;

[0041] 3. Vibration filtration mechanism; 31. Assembly shaft; 32. Cross shaft; 33. Cross groove; 34. Threaded shaft; 35. Threaded collar; 36. Fixed rod; 37. Curved filter plate; 38. Flow guide group; 39. Double ring plate; 310. Sliding shaft; 311. Spring. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that the structure and working principle of the above-mentioned recovery tower 1, input pipe 11, water tank 12, output pipe 13 and other devices are existing technologies and will not be described in detail here.

[0044] Example 1

[0045] Please refer to Figures 1-9As shown, an ammonia recovery device for synthetic ammonia production includes a recovery tower 1, an input pipe 11 connected to the bottom of the recovery tower 1, a water tank 12 installed outside the recovery tower 1, a spray liquid stored inside the water tank 12, an output pipe 13 symmetrically connected to the top of the recovery tower 1, and a dynamic spraying mechanism 2 installed inside the recovery tower 1.

[0046] The dynamic spraying mechanism 2 includes a drive motor 22 installed on the top of the recycling tower 1. A water conveying component 23 is installed below the drive motor 22. Fixed spray pipes 24 and movable spray pipes 25 are evenly installed below the water conveying component 23. The fixed spray pipes 24 and movable spray pipes 25 cooperate with each other to provide a full-coverage spraying area inside the recycling tower 1.

[0047] It should be noted that a limiting frame 21 is fixedly connected to the top of the recovery tower 1, and a drive motor 22 is movably connected to the top of the recovery tower 1 through the limiting frame 21. The drive motor 22 is specifically a stepper motor, and after starting, the output shaft can reciprocate clockwise and counterclockwise. The water conveying component 23 is composed of no fewer than three annular chambers. The three annular chambers are connected to each other through branch pipes, and the outermost annular chamber of the water conveying component 23 is connected to the water tank 12. The fixed nozzle 24 is fixedly connected to the lower surface of the two inner annular chambers in the water conveying component 23, and the movable nozzle 25 is rotatably connected to the water conveying component. The outermost annular chamber of 23 is connected to the water supply component 23, and both the fixed nozzle 24 and the movable nozzle 25 are in communication with the water supply component 23. The lower part of the movable nozzle 25 is spherical, and the spherical position of the movable nozzle 25 is evenly provided with circular holes 2501. The outer wall of the movable nozzle 25 is fixedly connected with a driven gear 26. The driven gear 26 is meshed with a drive gear ring 27. The drive gear ring 27 is rotatably connected to the inner wall of the recovery tower 1. The upper surface of the drive gear ring 27 is fixedly connected with a connecting frame 28. The end of the connecting frame 28 away from the drive gear ring 27 is slidably connected to the outer wall of the output shaft end of the drive motor 22.

[0048] Specifically, during the operation of this ammonia recovery device, the various components work together to achieve efficient ammonia recovery. First, ammonia-containing gas enters the recovery tower 1 through the input pipe 11 at the bottom. Simultaneously, the spray liquid stored in the water tank 12, under the pressure of the delivery pump, gradually flows into the inner annular chamber of the water conveying component 23 through the connecting pipe between the outermost annular chamber and the water tank 12. Since the three annular chambers are connected by branch pipes, the spray liquid is evenly distributed within the water conveying component 23 and delivered to the fixed spray pipe 24 and the movable spray pipe 25 respectively. When the drive motor 22 starts, its output... The shaft begins to rotate regularly in a clockwise and counterclockwise reciprocating pattern. During this process, the rotation of the output shaft of the drive motor 22 is first transmitted through the connecting frame 28. One end of the connecting frame 28 away from the output shaft of the drive motor 22 is fixedly connected to the drive gear ring 27, while the other end slides on the output shaft. This allows the drive gear ring 27 to rotate stably on the inner wall of the recovery tower 1. As the drive gear ring 27 rotates, the driven gear 26 meshing with it rotates accordingly. The driven gear 26 is fixedly installed on the outer wall of the movable nozzle 25, thereby driving the movable nozzle 25 to rotate regularly around its own axis. The reciprocating rotation of the nozzle 25, thanks to the spherical design below the movable nozzle 25, significantly reduces fluid resistance during rotation, making it smoother and more flexible. Simultaneously, the evenly spaced circular holes 2501 at the spherical position allow the spray liquid to be sprayed out in a uniformly dispersed manner, effectively covering the outer area of ​​the recovery tower 1. The fixed nozzle 24, directly fixed to the lower surface of the two annular chambers inside the water conveying component 23, does not shift with the rotation of the drive motor 22 and remains stationary. Therefore, it continuously sprays the central area of ​​the recovery tower 1. The fixed nozzle 24 and the movable nozzle 25 work together, with the fixed nozzle 24 responsible for the central area of ​​the spray recovery tower 1 and the movable nozzle 25 dynamically covering the outer area. The two work together to achieve full coverage spraying of the internal space of the recovery tower 1. As the ammonia-containing gas flows from bottom to top, it can fully contact the spray liquid in each area, and the ammonia gas quickly dissolves in the spray liquid, thereby greatly improving the ammonia absorption efficiency. The spray liquid after absorbing ammonia gas falls to the bottom of the recovery tower 1 for further processing, while the purified gas is discharged from the output pipes 13 symmetrically set at the top of the recovery tower 1, completing the entire ammonia recovery process.

[0049] Please refer to Figures 1-9 As shown, the recycling tower 1 is equipped with a vibration filtering mechanism 3. The vibration filtering mechanism 3 includes an assembly shaft 31 sleeved on the outside of the output shaft end of the drive motor 22. A cross shaft 32 is fixedly connected to the lower surface of the assembly shaft 31. A threaded shaft 34 is installed below the assembly shaft 31. A cross groove 33 is opened on the upper surface of the threaded shaft 34 at the position corresponding to the cross shaft 32. The assembly shaft 31 and the threaded shaft 34 are slidably connected through the cross shaft 32 and the cross groove 33.

[0050] It should be noted that the outer wall of the threaded shaft 34 is threadedly connected to a threaded collar 35, and the threaded shaft 34 and the threaded collar 35 form a ball screw structure. In the initial state, the threaded collar 35 is located at the uppermost end of the threaded shaft 34. A fixing rod 36 is symmetrically fixedly connected to the lower surface of the threaded collar 35. A curved filter plate 37 is fixedly connected to the end of the fixing rod 36 away from the threaded collar 35. A flow guide group 38 is fixedly connected to the lower surface of the curved filter plate 37. The flow guide group 38 is composed of multiple conical columns. A double ring plate 39 is installed on the outer wall of the curved filter plate 37. The double ring plate 39 is composed of two upper and lower ring pieces. The curved filter plate 37 and the upper ring piece of the double ring plate 39 are fixedly connected. A sliding shaft 310 is uniformly slidably connected inside the double ring plate 39. A spring 311 is sleeved on the outer wall of the sliding shaft 310. The two ends of the spring 311 are fixedly connected to the upper ring piece and the lower ring piece, respectively.

[0051] Specifically, during the operation of the ammonia recovery device, when the drive motor 22 starts, its output shaft begins to rotate. Since the assembly shaft 31 is sleeved outside the output shaft end of the drive motor 22, the assembly shaft 31 rotates along with the output shaft of the drive motor 22. Because a cross shaft 32 is fixedly connected to the lower surface of the assembly shaft 31, and a threaded shaft 34 is installed below the assembly shaft 31, a cross groove 33 is formed on the upper surface of the threaded shaft 34 corresponding to the position of the cross shaft 32. The assembly shaft 31 and the threaded shaft 34 form a sliding connection through the cross shaft 32 and the cross groove 33. Therefore, after the drive motor 22 is installed, the assembly shaft 31 and the threaded shaft 34 are also in an embedded contact state, as detailed below. Figure 7 As shown, this sliding connection method allows the threaded shaft 34 to rotate with the assembly shaft 31, and can also compensate for possible axial displacement and angular deviation to a certain extent.

[0052] As the output shaft of the drive motor 22 continues to rotate, it drives the threaded shaft 34 to rotate. Since the threaded shaft 34 and the threaded collar 35 form a ball screw structure, and the threaded collar 35 is initially located at the uppermost end of the threaded shaft 34, when the threaded shaft 34 rotates, the threaded collar 35 will perform reciprocating linear motion on the threaded shaft 34. The lower surface of the threaded collar 35 is symmetrically and fixedly connected to the fixing rod 36. When the threaded collar 35 moves up and down, it will drive the curved filter plate 37 to perform reciprocating linear motion up and down through the fixing rod 36. The curved filter plate 37 has a double ring plate 39 installed on its outer wall. The double ring plate 39 is composed of two circular ring pieces, and the curved filter plate 37 is fixedly connected to the upper circular ring piece of the double ring plate 39. The double ring plate 39 has a sliding shaft 310 uniformly connected inside. The outer wall of the sliding shaft 310 is fitted with a spring 311. The two ends of the spring 311 are fixedly connected to the upper and lower circular ring pieces, respectively. When the curved filter plate 37 moves up and down, the curved filter plate 37 will vibrate locally under the action of the spring 311 and the sliding shaft 310.

[0053] A flow guide assembly 38 is fixedly connected to the lower surface of the curved filter plate 37. The flow guide assembly 38 is composed of multiple conical columns. When dust- and ammonia-containing gas passes through the curved filter plate 37, the flow guide assembly 38 can change the flow state of the airflow below the filter plate, so that the dust- and ammonia-containing gas forms a more uniform distribution before passing through the filter plate. Through the above-mentioned movement process, the vibration filtration mechanism 3 can effectively prevent the accumulation of particulate matter on the surface of the curved filter plate 37, so that the filter plate always maintains good permeability, greatly extending the cleaning cycle and service life of the filter plate. At the same time, the combination of reciprocating linear motion and vibration avoids the problem of uneven airflow distribution caused by local blockage.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ammonia recovery device for ammonia synthesis production, comprising a recovery tower (1), the bottom of which is connected to an input pipe (11), a water tank (12) installed outside the recovery tower (1), the interior of which stores spray liquid, and output pipes (13) symmetrically connected to the top of the recovery tower (1), characterized in that: The recycling tower (1) is equipped with a dynamic spraying mechanism (2). The dynamic spraying mechanism (2) includes a drive motor (22) installed on the top of the recovery tower (1), a water conveying component (23) installed below the drive motor (22), and fixed spray pipes (24) and movable spray pipes (25) evenly installed below the water conveying component (23). The fixed spray pipes (24) and movable spray pipes (25) cooperate with each other to provide a full-coverage spraying area inside the recovery tower (1). The water conveying component (23) is composed of no less than three annular chambers. The three annular chambers are connected by branch pipes, and the outermost annular chamber of the water conveying component (23) is connected to the water tank (12). The fixed nozzle (24) is fixedly connected to the lower surface of the two inner annular chambers in the water conveying component (23), and the movable nozzle (25) is rotatably connected to the lower surface of the outermost annular chamber in the water conveying component (23). Both the fixed nozzle (24) and the movable nozzle (25) are in communication with the water conveying component (23). The lower part of the movable nozzle (25) is spherical, and the spherical position of the movable nozzle (25) is uniformly provided with round holes (2501). The outer wall of the movable nozzle (25) is fixedly connected with a driven gear (26). The driven gear (26) is meshed with a drive gear ring (27) on the outside. The drive gear ring (27) is rotatably connected to the inner wall of the recovery tower (1).

2. The ammonia recovery device for synthetic ammonia production according to claim 1, characterized in that: The top of the recycling tower (1) is fixedly connected to a limiting frame (21), and the drive motor (22) is movably connected to the top position of the recycling tower (1) through the limiting frame (21). The drive motor (22) is specifically a stepper motor, and after starting, the output shaft can reciprocate clockwise and counterclockwise.

3. An ammonia recovery device for synthetic ammonia production according to claim 2, characterized in that: A connecting frame (28) is fixedly connected to the upper surface of the drive gear ring (27), and the end of the connecting frame (28) away from the drive gear ring (27) is slidably connected to the outer wall of the output shaft end of the drive motor (22).

4. An ammonia recovery device for synthetic ammonia production according to claim 1, characterized in that: The recycling tower (1) is equipped with a vibration filtering mechanism (3). The vibration filtering mechanism (3) includes an assembly shaft (31) sleeved on the outside of the output shaft of the drive motor (22). A cross shaft (32) is fixedly connected to the lower surface of the assembly shaft (31). A threaded shaft (34) is installed below the assembly shaft (31). A cross groove (33) is opened on the upper surface of the threaded shaft (34) at the position corresponding to the cross shaft (32). The assembly shaft (31) and the threaded shaft (34) are connected by a sliding connection through the cross shaft (32) and the cross groove (33).

5. An ammonia recovery device for synthetic ammonia production according to claim 4, characterized in that: The outer wall of the threaded shaft (34) is threaded with a threaded collar (35), and the threaded shaft (34) and the threaded collar (35) form a ball screw structure. In the initial state, the threaded collar (35) is located at the uppermost end of the threaded shaft (34).

6. An ammonia recovery device for synthetic ammonia production according to claim 5, characterized in that: A fixing rod (36) is symmetrically fixedly connected to the lower surface of the threaded collar (35). A curved filter plate (37) is fixedly connected to the end of the fixing rod (36) away from the threaded collar (35). A flow guide group (38) is fixedly connected to the lower surface of the curved filter plate (37). The flow guide group (38) is composed of multiple conical columns.

7. An ammonia recovery device for synthetic ammonia production according to claim 6, characterized in that: The outer wall of the curved filter plate (37) is equipped with a double ring plate (39), which is composed of two upper and lower circular ring pieces. The curved filter plate (37) and the upper circular ring piece of the double ring plate (39) are fixedly connected. The double ring plate (39) is uniformly slidably connected with a sliding shaft (310) inside. The outer wall of the sliding shaft (310) is fitted with a spring (311), and the two ends of the spring (311) are fixedly connected to the upper circular ring piece and the lower circular ring piece, respectively.

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