System and method for preparing ammonia water with concentration of more than 20% from ammonia-containing tail gas
By introducing a stirring and diffusion module and a bubble splitting module into the device for producing ammonia water from ammonia-containing tail gas, the problem of low ammonia absorption rate is solved, and efficient dissolution and absorption of ammonia in water is achieved.
Patent Information
- Application Number
- CN202510556362.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2025-10-10
AI Technical Summary
In the existing device for producing ammonia water from ammonia-containing tail gas, the ammonia absorption rate is low and the multi-stage absorption tower method is relatively inconvenient.
The tower body, air inlet pipe, spray pipe, stirring and diffusion module and bubble splitting module are combined in a design. The stirring and diffusion module is used to fully mix ammonia with low-temperature ultrapure water, and the bubble splitting module refines the bubbles to improve the solubility of ammonia.
The solubility and absorption effect of ammonia in water are improved, ensuring the efficient absorption of ammonia.
Smart Images
Figure CN120754747A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of ammonia-containing waste gas treatment, and particularly relates to a system and method for preparing ammonia water with a concentration of more than 20% from ammonia-containing tail gas. BACKGROUND
[0002] Ammonia is a colorless gas with a strong irritating odor, which can be easily liquefied into a colorless liquid, pressurized at room temperature to make it liquefied, and solidified into snow-like solid. Ammonia can be dissolved in water, ethanol and diethyl ether, and decomposed into nitrogen and hydrogen at high temperatures. Ammonia has a reducing effect and can be oxidized to nitric oxide in the presence of a catalyst. Ammonia is used to prepare liquid nitrogen, ammonia water, nitric acid, ammonium salt and amine.
[0003] The existing device for preparing ammonia water from ammonia-containing tail gas usually obtains ammonia water by directly conveying ammonia gas into low-temperature pure water in an absorption tower. However, because the dissolution speed of ammonia gas is slow, a large amount of ammonia gas still flows out with the tail gas, so a multi-stage absorption tower is needed to ensure the ammonia absorption rate, which is relatively inconvenient. SUMMARY
[0004] The present application discloses a system and method for preparing ammonia water with a concentration of more than 20% from ammonia-containing tail gas, aiming to solve the technical problem of poor ammonia absorption effect of the existing absorption tower in the background art.
[0005] The system for preparing ammonia water with a concentration of more than 20% from ammonia-containing tail gas provided by the present application comprises a tower body, a circular hole is formed in the upper side of the tower body, a discharge pipe is connected to the circular hole through a flange, a fine hole is formed in the outer part of the tower body, an air inlet pipe is fixedly connected to the fine hole, a gas bubble splitting module is arranged on the end of the air inlet pipe in the tower body, a liquid delivery pipe is arranged on the tower body, both ends of the liquid delivery pipe are located in the tower body, a spray pipe is connected to one end of the liquid delivery pipe through a flange, the other end of the liquid delivery pipe is located above the air inlet pipe, a pump is fixedly connected to the outer part of the tower body, the output end of the pump is connected to the liquid delivery pipe through a fine tube, a compressed cooling pipe is arranged on the tower body, a stirring and diffusion module is arranged in the tower body, and the stirring and diffusion module is located above the air inlet pipe. The stirring and diffusion module comprises a main shaft. The gas bubble splitting module comprises a mounting cylinder.
[0006] By arranging the tower body, the air inlet pipe, the spray pipe, the stirring and diffusion module and the gas bubble splitting module, the device can continuously stir the ultra-pure water in the tower body by using the stirring and diffusion module, so that the ammonia gas in the tail gas conveyed into the tower body by the air inlet pipe can be fully mixed with the low-temperature ultra-pure water, the solubility of ammonia gas in water is improved, and the ammonia absorption effect of the device is ensured.
[0007] In a preferred scheme, the inner wall of the tower body is fixedly connected with a stabilizing frame, a circular groove is formed in the stabilizing frame, the inner wall of the circular groove is movably connected with the outer portion of the main shaft, the upper side of the stabilizing frame is fixedly connected with a water-proof cover, the inner wall of the top of the water-proof cover is fixedly connected with motor one, the output end of motor one is connected with the upper side of the main shaft through a shaft coupling, and the outer portion of the main shaft is fixedly connected with two symmetrical rotating rods; two symmetrical circular holes are formed in each of the two rotating rods, the same secondary shaft is movably connected in the two circular holes on the same side, a plurality of equidistantly distributed stirring rods one are fixedly connected with the outer portion of each of the two secondary shafts, and a gear one is fixedly connected with the outer portion of each of the two secondary shafts and located above the rotating rod; the inner wall of the tower body is fixedly connected with an inner tooth ring, the inner tooth ring is engaged with the two gear ones, a rotating disc is fixedly connected with the outer portion of each of the two secondary shafts, and the upper side of each of the rotating discs is fixedly connected with a convex shaft, the outer portion of each of the convex shafts is movably connected with a transmission rod; each of the two rotating discs is located above the gear one, two symmetrical rectangular frames are formed in the rotating rod located above, a movable rod is arranged in each of the rectangular frames, a plurality of equidistantly distributed stirring rods two are fixedly connected with the outer portion of each of the movable rods, and a hole is formed in the end of each of the two transmission rods away from the convex shaft, and the inner wall of the hole is movably connected with the outer portion of the movable rod on the same side; the outer portion of each of the two movable rods is movably connected with a sliding block, the outer portion of each of the two sliding blocks is slidably connected with the inner wall of each of the two rectangular frames, the inner wall of each of the rectangular frames is provided with a cutting groove, a rack is fixedly connected in each of the cutting grooves, the outer portion of each of the movable rods is fixedly connected with a gear two, and the gear two on the same side is engaged with the rack.
[0008] By arranging the stirring and diffusion module, the secondary shaft is caused to rotate by the gear one and the inner tooth ring during the circumferential movement, the stirring rod one stirs the water, and the stirring effect of the device is improved; the rotating disc and the transmission rod not only enable the stirring rod two to rotate, but also enable the stirring rod two to move back and forth regularly, so that the coverage area of the device stirring is greatly improved, and the ultra-pure water not in contact with the ammonia gas can be in contact with the ammonia gas in the tail gas in time.
[0009] In a preferred scheme, the upper side of the mounting cylinder is fixedly connected with a diffusion cover, the bottom of the mounting cylinder is provided with a slot hole, the inner wall of the slot hole is fixedly connected with the outer part of the end of the air inlet pipe close to the tower body, and the inner wall of the mounting cylinder is fixedly connected with a fixing frame, and the fixing frame is provided with an electric stirring paddle; The outer part of the mounting cylinder is provided with a rectangular opening, two symmetrical mounting plates are slidably connected in the rectangular opening, square holes are formed in the two mounting plates, inclined hole mesh plates are fixedly connected in the square holes, the two inclined hole mesh plates are symmetrical with each other, and the outer part of the mounting cylinder is fixedly connected with two symmetrical U-shaped frames, the inner walls of the U-shaped frames are fixedly connected with two symmetrical springs, and the ends of the springs close to the inclined hole mesh plates are fixedly connected with the outer parts of the mounting plates on the same side; The outer part of the mounting cylinder is fixedly connected with a closed frame, the inner wall of the closed frame is fixedly connected with a second electric motor, the output end of the second electric motor is connected with a transmission shaft through a shaft coupling, the outer part of the transmission shaft is fixedly connected with two interlaced star-shaped impact pieces, and the sides of the two mounting plates close to the transmission shaft are fixedly connected with contact blocks, and the two contact blocks are respectively located on the outer parts of the two star-shaped impact pieces.
[0010] By setting the bubble splitting module, the star-shaped impact piece and the contact block can cut the microsphere bubbles in the interlaced movement, so that the large bubbles entering the tower body from the air inlet pipe are quickly converted into fine small bubbles, the contact area of the ammonia gas and the low-temperature water body is greatly increased, the ammonia gas absorption speed is improved, and the ammonia gas absorption efficiency of the device is further improved.
[0011] A method for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas, using a system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas as described above, comprising the following steps: Step one, before the ammonia-containing tail gas is transported into the tower body through the air inlet pipe, the low-temperature cooling water is circulated in the compression cooling pipe to cool the ultra-pure water in the tower body, the tail gas is transported into the tower body through the air inlet pipe, and the bubble splitting module is used to split and refine the bubbles formed by the tail gas in the ultra-pure water in the tower body, so that the bubbles are more fine; Step two, use the stirring and diffusion module to stir the ultra-pure water in the tower body, start the pump, and the pump transports the ultra-pure water into the spray pipe through the infusion tube to spray the rising tail gas.
[0012] As can be seen from the above, the system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas provided by the present application can continuously stir the ultra-pure water in the tower body, so that the ammonia gas in the tail gas transported into the tower body by the air inlet pipe can be fully mixed with the low-temperature ultra-pure water, the solubility of ammonia gas in water is improved, and the absorption effect of the device on ammonia gas is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is shown in the overall structural schematic diagram. Figure 2 The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is shown in the cross-sectional structural schematic diagram. Figure 3 The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is shown in the structural schematic diagram of the stirring and diffusion module. Figure 4 The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is shown in the structural schematic diagram of the secondary shaft. Figure 5 The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is shown in the structural schematic diagram of the rotating rod. Figure 6 The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is shown in the structural schematic diagram of the bubble splitting module. Figure 7 The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is shown in the structural schematic diagram of the mounting plate.
[0014] In the figure: 1, tower body; 2, discharge pipe; 3, air inlet pipe; 4, liquid delivery pipe; 5, pump; 6, compression cooling pipe; 7, spray pipe; 8, stirring and diffusion module; 801, stabilizing frame; 802, main shaft; 803, water barrier cover; 804, motor I; 805, rotating rod; 806, inner tooth ring; 807, secondary shaft; 808, stirring rod I; 809, gear I; 810, rotating disc; 811, protruding shaft; 812, transmission rod; 813, movable rod; 814, stirring rod II; 815, rectangular frame; 816, slot; 817, rack; 818, sliding block; 819, gear II; 9, bubble splitting module; 901, mounting cylinder; 902, fixing frame; 903, electric stirring paddle; 904, diffusion cover; 905, mounting plate; 906, inclined hole mesh plate; 907, spring; 908, closed frame; 909, motor II; 910, transmission shaft; 911, star-shaped impact piece; 912, contact block. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.
[0016] The system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas according to the present application is mainly applied to the scene where the ammonia absorption effect of the existing absorption tower is poor.
[0017] REFERENCE Figures 1-7The utility model provides a system for making ammonia tail gas into ammonia water with concentration of 20% or above, which comprises a tower body 1, a circular hole is formed on the upper side of the tower body 1, a discharge pipe 2 is connected to the circular hole through a flange, a fine hole is formed on the outside of the tower body 1, an air inlet pipe 3 is connected to the fine hole through bolts, one end of the air inlet pipe 3 located in the tower body 1 is provided with a bubble splitting module 9, a liquid delivery pipe 4 is arranged on the tower body 1, both ends of the liquid delivery pipe 4 are located in the tower body 1, one end of the liquid delivery pipe 4 is connected to a spray pipe 7 through a flange, the other end of the liquid delivery pipe 4 is located above the air inlet pipe 3, a pump 5 is connected to the outside of the tower body 1 through bolts, the output end of the pump 5 is connected to the liquid delivery pipe 4 through a fine tube, a compressed cooling pipe 6 is arranged on the tower body 1, a stirring and diffusion module 8 is arranged in the tower body 1, and the stirring and diffusion module 8 is located above the air inlet pipe 3. The stirring and diffusion module 8 comprises a main shaft 802. The bubble splitting module 9 comprises a mounting cylinder 901.
[0018] Specifically, before the ammonia-containing tail gas is delivered into the tower body 1 through the air inlet pipe 3, low-temperature cooling water is circulated in the compressed cooling pipe 6 to cool the ultrapure water in the tower body 1, the tail gas is delivered into the tower body 1 through the air inlet pipe 3, the bubbles formed by the tail gas in the ultrapure water in the tower body 1 are split and refined by using the bubble splitting module 9 to make the bubbles more fine, the ultrapure water in the tower body 1 is stirred by using the stirring and diffusion module 8, the pump 5 is started, and the pump 5 delivers the ultrapure water into the spray pipe 7 through the liquid delivery pipe 4 to spray the rising tail gas; the device can continuously stir the ultrapure water in the tower body 1 by using the stirring and diffusion module 8, so that the ammonia gas in the tail gas delivered into the tower body 1 through the air inlet pipe 3 can be fully mixed with the low-temperature ultrapure water, the solubility of ammonia gas in water is improved, and the absorption effect of the device on ammonia gas is ensured.
[0019] Reference Figure 3 , Figure 4 and Figure 5In a preferred embodiment, the inner wall of the tower body 1 is bolted with a stabilizing frame 801, a circular groove is formed in the stabilizing frame 801, the inner wall of the circular groove is rotatably connected with the outer part of the main shaft 802 through a bearing, the upper side of the stabilizing frame 801 is bolted with a splash guard 803, the inner wall of the top of the splash guard 803 is bolted with a motor one 804, the output end of the motor one 804 is connected with the upper side of the main shaft 802 through a shaft coupling, and the outer part of the main shaft 802 is bolted with two symmetrical rotating rods 805; two symmetrical circular holes are formed in the two rotating rods 805, the same side two circular holes are rotatably connected with the same secondary shaft 807 through a bearing, the outer part of the two secondary shafts 807 is bolted with a plurality of equidistantly distributed stirring rods one 808, and the outer part of the two secondary shafts 807 is bolted with a gear one 809, the gear one 809 is located above the rotating rod 805; the inner wall of the tower body 1 is bolted with an inner tooth ring 806, the inner tooth ring 806 is engaged with the two gear ones 809, the outer part of the two secondary shafts 807 is bolted with a rotating disc 810, and the upper side of the rotating disc 810 is bolted with a convex shaft 811, the outer part of the convex shaft 811 is rotatably connected with a transmission rod 812; the two rotating discs 810 are located above the gear one 809, two symmetrical rectangular frames 815 are formed in the upper rotating rod 805, a movable rod 813 is arranged in the rectangular frame 815, and the outer part of the movable rod 813 is bolted with a plurality of equidistantly distributed stirring rods two 814, the end of the two transmission rods 812 away from the convex shaft 811 is provided with a hole, and the inner wall of the hole is rotatably connected with the outer part of the same side movable rod 813 through a bearing; the outer part of the two movable rods 813 is rotatably connected with a sliding block 818, the outer part of the two sliding blocks 818 is respectively slidably connected with the inner wall of the two rectangular frames 815, the inner wall of the rectangular frame 815 is provided with a cutting groove 816, the cutting groove 816 is bolted with a rack 817, the outer part of the movable rod 813 is bolted with a gear two 819, and the gear two 819 on the same side is engaged with the rack 817.
[0020] Specifically, after the ammonia-containing tail gas is delivered into the tower body 1 through the gas inlet pipe 3, the motor one 804 is started, the motor one 804 drives the main shaft 802 to rotate, the motor one 804 on the main shaft 802 drives the stirring rod one 808 on the secondary shaft 807 to stir the water body, under the meshing rotation of the gear one 809 and the inner tooth ring 806, the secondary shaft 807 rotates around the main shaft 802 while rotating, the rotating disc 810 constantly pushes the movable rod 813 connected with the transmission rod 812 to reciprocate in the rectangular frame 815 when it rotates, through the meshing of the gear two 819 and the rack 817, the movable rod 813 rotates while reciprocating, thereby driving the stirring rod two 814 on it to rotate, so that the stirring rod two 814 stirs the water body during the movement.
[0021] In a specific application scenario, the stirring and diffusion module 8 is mainly suitable for the stirring and diffusion link in the stirring and diffusion process, that is, the stirring and diffusion module 8 utilizes the gear 809 and the inner tooth ring 806 to enable the secondary shaft 807 to rotate in the process of circumferential motion, so that the stirring rod 808 stirs the water body, thereby improving the stirring effect of the device; the rotating disc 810 and the transmission rod 812 not only enable the stirring rod 814 to rotate, but also enable the stirring rod 814 to move back and forth regularly, thereby greatly improving the coverage area of the device stirring, so that the ultra-pure water not contacted with ammonia gas can be in contact with the ammonia gas in the tail gas in time.
[0022] With reference to Figure 6 and Figure 7 In a preferred embodiment, the upper side of the mounting cylinder 901 is connected with a diffusion cover 904 through bolts, the bottom of the mounting cylinder 901 is provided with a slot hole, the inner wall of the slot hole is connected with the outer part of one end of the gas inlet pipe 3 close to the tower body 1 through bolts, and the inner wall of the mounting cylinder 901 is connected with a fixing frame 902 through bolts, and the fixing frame 902 is provided with an electric stirring paddle 903; the outer part of the mounting cylinder 901 is provided with a rectangular opening, two symmetrical mounting plates 905 are slidably connected in the rectangular opening, square holes are formed in the two mounting plates 905, inclined hole mesh plates 906 are connected in the square holes through bolts, the two inclined hole mesh plates 906 are symmetrical to each other, and the outer part of the mounting cylinder 901 is connected with two symmetrical U-shaped frames through bolts, the inner walls of the U-shaped frames are connected with two symmetrical springs 907 through bolts, one end of the spring 907 close to the inclined hole mesh plate 906 is connected with the outer part of the mounting plate 905 on the same side through bolts; the outer part of the mounting cylinder 901 is connected with a closed frame 908 through bolts, the inner wall of the closed frame 908 is connected with a motor two 909 through bolts, the output end of the motor two 909 is connected with a transmission shaft 910 through a shaft coupling, the outer part of the transmission shaft 910 is connected with two interlaced star-shaped impact pieces 911 through bolts, and one side of the two mounting plates 905 close to the transmission shaft 910 is connected with a contact block 912 through bolts, and the two contact blocks 912 are respectively located on the outer part of the two star-shaped impact pieces 911.
[0023] Specifically, after the ammonia-containing tail gas is transported into the tower body 1 through the air inlet pipe 3, the electric stirring paddle 903 is started, and the electric stirring paddle 903 stirs the tail gas bubbles floating in the installation cylinder 901 in rotation, the electric motor two 909 is started, and the electric motor two 909 drives the two star-shaped impact pieces 911 on the transmission shaft 910 to rotate, so that the teeth on the star-shaped impact pieces 911 can impact the contact blocks 912 in turn, so that the two mounting plates 905 slide on the installation cylinder 901 in a staggered manner, and are restored to the original position under the pushing of the springs 907. The rising tail gas bubbles are continuously cut into smaller bubbles by the interlaced inclined mesh holes when passing through the mesh holes on the inclined hole mesh plate 906, and finally guided by the diffusion cover 904 and diffused into the low-temperature water body in a ring shape.
[0024] In a specific application scenario, the bubble splitting module 9 is mainly suitable for the bubble splitting link in the bubble splitting process, that is, the bubble splitting module 9 can cut the microsphere bubbles in the interlaced movement of the two inclined hole mesh plates 906 by using the star-shaped impact pieces 911 and the contact blocks 912, so that the large bubbles entering the tower body 1 from the air inlet pipe 3 are quickly converted into fine small bubbles, greatly increasing the contact area of ammonia gas and low-temperature water body, improving the absorption speed of ammonia gas, and further improving the absorption efficiency of the device for ammonia gas.
[0025] A method for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas, using a system for preparing ammonia water with a concentration of 20% or more from ammonia-containing tail gas as described above, comprising the following steps: Step one, before the ammonia-containing tail gas is transported into the tower body 1 through the air inlet pipe 3, the low-temperature cooling water circulates in the compression cooling pipe 6, thereby cooling the ultra-pure water in the tower body 1, the tail gas is transported into the tower body 1 through the air inlet pipe 3, and the bubble splitting module 9 is used to split and refine the bubbles formed by the tail gas in the ultra-pure water in the tower body 1, so that the bubbles are more fine (after the ammonia-containing tail gas is transported into the tower body 1 through the air inlet pipe 3, the electric stirring paddle 903 is started, and the electric stirring paddle 903 stirs the tail gas bubbles floating in the installation cylinder 901 in rotation, the electric motor two 909 is started, and the electric motor two 909 drives the two star-shaped impact pieces 911 on the transmission shaft 910 to rotate, so that the teeth on the star-shaped impact pieces 911 can impact the contact blocks 912 in turn, so that the two mounting plates 905 slide on the installation cylinder 901 in a staggered manner, and are restored to the original position under the pushing of the springs 907. The rising tail gas bubbles are continuously cut into smaller bubbles by the interlaced inclined mesh holes when passing through the mesh holes on the inclined hole mesh plate 906, and finally guided by the diffusion cover 904 and diffused into the low-temperature water body in a ring shape); Step two, using stirring diffusion module 8 to stir the ultra-pure water in the tower body 1, start the pump 5, the pump 5 will be transported into the spray pipe 7 through the infusion tube 4, spray the rising tail gas (after the ammonia containing tail gas is transported into the tower body 1 in the inlet pipe 3, start motor one 804, motor one 804 drives the main shaft 802 to rotate, make the motor one 804 on the main shaft 802 drive the stirring rod one 808 on the secondary shaft 807 to stir the water body, under the meshing rotation of gear one 809 and inner tooth ring 806, the secondary shaft 807 rotates around the main shaft 802 while rotating, make the rotating disc 810 constantly push the movable rod 813 connected with the transmission rod 812 to reciprocate in the rectangular frame 815 when rotating, through the meshing of gear two 819 and rack 817, make the movable rod 813 reciprocate while rotating, drive the stirring rod two 814 on it to rotate, so that the stirring rod two 814 stirs the water body in the moving process).
[0026] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A system for producing ammonia water with a concentration of 20% or more from ammonia-containing tail gas, comprising a tower body (1), characterized in that: A circular hole is provided on the upper side of the tower body (1), and a discharge pipe (2) is connected to the circular hole via a flange. A fine hole is provided on the outside of the tower body (1), and an air inlet pipe (3) is fixedly connected to the fine hole. A bubble splitting module (9) is provided at one end of the air inlet pipe (3) located in the tower body (1). A liquid infusion pipe (4) is provided on the tower body (1), and both ends of the liquid infusion pipe (4) are located in the tower body (1). One end of the liquid infusion pipe (4) is connected to a spray pipe (7) via a flange, and the other end is located above the air inlet pipe (3). A pump (5) is fixedly connected to the outside of the tower body (1), and the output end of the pump (5) is connected to the liquid infusion pipe (4) via a fine tube. A compression cooling pipe (6) is provided on the tower body (1), and a stirring and diffusion module (8) is provided in the tower body (1). The stirring and diffusion module (8) is located above the air inlet pipe (3). The stirring and diffusion module (8) includes a main shaft (802); The bubble splitting module (9) comprises a mounting cylinder (901).
2. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 1, characterized in that: The inner wall of the tower body (1) is fixedly connected to a stabilizing frame (801), a circular groove is provided on the stabilizing frame (801), the inner wall of the circular groove is movably connected to the outside of the main shaft (802), the upper side of the stabilizing frame (801) is fixedly connected to a water shield (803), the top inner wall of the water shield (803) is fixedly connected to a motor 1 (804), the output end of the motor 1 (804) is connected to the upper side of the main shaft (802) through a coupling, and the outside of the main shaft (802) is fixedly connected to two symmetrical rotating rods (805).
3. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 2, characterized in that: Two symmetrical circular openings are provided on the two rotating rods (805), and a same secondary shaft (807) is movably connected in the two circular holes on the same side. The exteriors of the two secondary shafts (807) are fixedly connected to a plurality of stirring rods (808) distributed at equal intervals, and the exteriors of the two secondary shafts (807) are fixedly connected to gears (809), and the gears (809) are both located above the rotating rods (805).
4. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 3, characterized in that: The inner wall of the tower body (1) is fixedly connected to an inner gear ring (806), which is meshed with two gears (809). The exteriors of the two secondary shafts (807) are fixedly connected to a rotating disk (810), and the upper sides of the rotating disks (810) are fixedly connected to convex shafts (811), and the exteriors of the convex shafts (811) are movably connected to transmission rods (812).
5. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 4, characterized in that: The two rotating disks (810) are both located above the gear one (809), and two symmetrical rectangular frames (815) are provided on the rotating rod (805) located above. A movable rod (813) is provided in each of the rectangular frames (815), and the outside of the movable rod (813) is fixedly connected to a plurality of equally spaced stirring rods (814). The ends of the two transmission rods (812) away from the convex shaft (811) are both provided with openings, and the inner walls of the openings are movably connected to the outside of the movable rod (813) on the same side.
6. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 5, characterized in that: The exteriors of the two movable rods (813) are movably connected to sliders (818), and the exteriors of the two sliders (818) are slidably connected to the inner walls of the two rectangular frames (815), and the inner walls of the rectangular frames (815) are each provided with a slot (816), and the slots (816) are each fixedly connected to a rack (817), and the exteriors of the movable rods (813) are each fixedly connected to a second gear (819), and the second gear (819) located on the same side is meshed with the rack (817).
7. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 6, characterized in that: A diffusion cover (904) is fixedly connected to the upper side of the mounting cylinder (901), a slot is provided at the bottom of the mounting cylinder (901), the inner wall of the slot is fixedly connected to the outside of one end of the air inlet pipe (3) close to the tower body (1), and a fixing frame (902) is fixedly connected to the inner wall of the mounting cylinder (901), and an electric stirring paddle (903) is provided in the fixing frame (902).
8. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 7, characterized in that: The mounting tube (901) is provided with a rectangular opening on the outside, and two symmetrical mounting plates (905) are slidably connected in the rectangular opening. The two mounting plates (905) are provided with square holes, and the oblique hole mesh plates (906) are fixedly connected in the square holes. The two oblique hole mesh plates (906) are symmetrical to each other, and the mounting tube (901) is fixedly connected to the outside with two symmetrical U-shaped frames, and the inner walls of the U-shaped frames are fixedly connected with two symmetrical springs (907), and the ends of the springs (907) close to the oblique hole mesh plates (906) are fixedly connected to the outside of the mounting plate (905) on the same side.
9. The system for converting ammonia-containing tail gas into ammonia water with a concentration of 20% or more according to claim 8, characterized in that: The outside of the mounting cylinder (901) is fixedly connected to a closed frame (908), the inner wall of the closed frame (908) is fixedly connected to a second motor (909), the output end of the second motor (909) passes through the closed frame (908) and is connected to a transmission shaft (910) via a coupling, the outside of the transmission shaft (910) is fixedly connected to two mutually staggered star-shaped impact pieces (911), and the two mounting plates (905) are fixedly connected to a contact block (912) on one side close to the transmission shaft (910), and the two contact blocks (912) are respectively located on the outside of the two star-shaped impact pieces (911).
10. A method for producing ammonia water with a concentration of 20% or more from ammonia-containing tail gas, using the system for producing ammonia water with a concentration of 20% or more from ammonia-containing tail gas as claimed in claim 9, characterized in that: The steps include: Step 1: Before the ammonia-containing tail gas is transported into the tower body (1) through the air inlet pipe (3), low-temperature cooling water is circulated in the compression cooling pipe (6), thereby cooling the ultrapure water in the tower body (1), and the tail gas is transported into the tower body (1) through the air inlet pipe (3). The bubble splitting module (9) is used to split and refine the bubbles formed by the tail gas in the ultrapure water in the tower body (1), so that the bubbles are finer; Step 2: Use the stirring and diffusion module (8) to stir the ultrapure water in the tower body (1), start the pump (5), and the pump (5) delivers the ultrapure water into the spray pipe (7) through the infusion pipe (4) to spray the rising tail gas.