Supergravity deamination device

Abstract

The invention discloses a supergravity deamination device which comprises a tank body, a top plate is mounted at the top of the tank body, a stirring mechanism is mounted at the top of the top plate, and a liquid spraying mechanism and a filling mechanism are mounted in the tank body. According to the supergravity deamination device, a stirring mechanism is assembled in a movable top-entry type installation mode, the device is convenient to disassemble and maintain, meanwhile, the requirement for mechanical sealing performance of the device is low, a spiral nozzle is adopted for material distribution, it is guaranteed that liquid is evenly distributed on an overflowing interface, meanwhile, a large-channel interaction interface is adopted, the device is not prone to being blocked, and the service life of the device is prolonged. The filler structure is fixed in the tank body, a stirring mechanism is adopted to simulate a supergravity environment, liquid is divided into fine liquid drops and liquid filaments through supergravity, a two-phase interaction interface and a mass transfer effect are further enhanced, meanwhile, air or steam can be adopted as an air stripping medium of the equipment, and the application scene and large-scale application of the deamination equipment are greatly improved.

Description

Technical Field

[0001] This invention relates to the technical field of ammonia nitrogen wastewater treatment devices, specifically a supergravity ammonia removal device. Background Technology

[0002] High-concentration ammonia nitrogen wastewater refers to industrial or domestic wastewater with abnormally high nitrogen content, present in the form of ammonium ions and free ammonia. This wastewater mainly originates from industrial processes such as fertilizer production, coking, landfill leachate treatment, and pharmaceutical manufacturing. Its discharge causes severe water pollution, leading to eutrophication, decreased dissolved oxygen, and damage to the ecological environment. Conventional biological denitrification processes for treating high-concentration ammonia nitrogen wastewater suffer from low efficiency, large footprint, and high operating costs, making it difficult to meet increasingly stringent environmental emission requirements. Hypergravity technology, by enhancing the mass transfer process, significantly improves ammonia removal efficiency and offers advantages such as rapid reaction speed, compact equipment, and high operational flexibility, making it a research hotspot in the field of high-concentration ammonia nitrogen wastewater treatment.

[0003] Currently, the main equipment for treating ammonia nitrogen wastewater includes two structural forms: packed bed and baffled bed. However, these still have the following drawbacks: 1. Existing high-gravity ammonia removal devices have high requirements for mechanical sealing, making it inconvenient to disassemble and maintain the mechanical equipment; 2. The existing ammonia removal unit has uneven feed liquid distribution, resulting in low ammonia nitrogen treatment efficiency in wastewater; 3. Traditional high-gravity ammonia removal devices use packing as a rotor. When treating wastewater, the packing rotates, resulting in low mass transfer efficiency at the gas-liquid interface.

[0004] To address these issues, the present invention provides a supergravity ammonia removal device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a supergravity ammonia removal device, which solves the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a supergravity ammonia removal device, comprising a tank, a top plate installed on the top of the tank, and a stirring mechanism installed on the top of the top plate; The stirring mechanism includes a mounting plate installed on the top of the top plate. A servo motor is installed on the top of the mounting plate. A rotating shaft is fixedly connected to the output end of the servo motor. A blade is fixedly connected to the outside of the rotating shaft. The tank is equipped with a spraying mechanism and a filling mechanism. The spraying mechanism includes a water distribution pipe installed inside the tank. A spiral nozzle is fixedly connected to the bottom of the water distribution pipe. Several spiral nozzles are provided. An inlet pipe is fixedly connected to the outside of the water distribution pipe. The inlet pipe passes through the tank and extends to the outside. The filling mechanism includes an assembly frame fixedly connected to the inside of the tank body, a filling body is provided inside the assembly frame, and a filling discharge pipe is fixedly connected to the outside of the tank body; The inner wall of the tank is fixedly connected to a support leg, and a defoaming mechanism is installed on the top of the support leg. The defoaming mechanism is installed above the water distribution pipe.

[0007] Preferably, the water distribution pipe is U-shaped, and the rotating shaft passes through the center of the water distribution pipe.

[0008] Preferably, the blades are provided in two sets, and the blades are installed inside the assembly frame.

[0009] Preferably, the defogging mechanism includes a partition plate installed on the top of the support leg, the support leg and the partition plate are fixed by bolts, and a wire mesh defogging device is installed on the top of the partition plate.

[0010] Preferably, both the assembly frame and the partition are constructed using a perforated plate structure.

[0011] Preferably, an air inlet pipe is fixedly connected to the outside of the tank body, the air inlet pipe is bent, and an exhaust pipe is fixedly connected to the top of the top plate.

[0012] Preferably, the outer side of the tank is fixedly connected to an outlet pipe, an overflow pipe, and a level gauge connector. The overflow pipe is L-shaped, and the overflow pipe and the level gauge connector are located on the same plane. The outlet pipe, the overflow pipe, and the level gauge connector are arranged perpendicularly.

[0013] Preferably, a diversion pipe A and a diversion pipe B are respectively installed on the outer side of the inlet pipe and the overflow pipe. Solenoid valves are installed at the two ports of the diversion pipe A and the diversion pipe B. A guide pipe is installed at one port of the diversion pipe A, and a drain pipe is installed at one port of the diversion pipe B. A circulation mechanism is installed between the diversion pipe A and the diversion pipe B. The circulation mechanism includes a return pipe A installed at the other port of the diversion pipe A, a return pipe B installed at the other port of the diversion pipe B, and a circulation pump installed between the return pipe A and the return pipe B.

[0014] Preferably, the top of the top plate is symmetrically fixedly connected with lifting lugs. Beneficial effects

[0015] This invention provides a high-gravity ammonia removal device. Compared with the prior art, it has the following advantages: 1. In this supergravity ammonia removal device, the servo motor is fixed to the top of the mounting plate in a movable top-mounted installation method. The servo motor, as well as the rotating shaft and blades fixed at the output end, are detachable, which facilitates maintenance. At the same time, the movable top-mounted installation structure reduces the requirements for mechanical seal performance. 2. The use of spiral nozzles for liquid distribution improves the uniformity of liquid flow distribution at the flow interface formed by the assembly frame and the packing body. The use of a large-channel interactive interface makes the equipment less prone to clogging and improves the efficiency of ammonia nitrogen treatment in wastewater. 3. The assembly frame and packing body are fixed inside the tank, and the rotating shaft and blades fixed at the output end of the servo motor are used to simulate the supergravity ammonia removal structure. After the liquid is turned into a fine droplet and liquid filament state by supergravity, the two-phase interaction interface and mass transfer effect are further enhanced, which is more conducive to separating ammonia nitrogen from wastewater. At the same time, the stripping medium of this equipment can be air or air, which greatly improves the application scenarios and large-scale application of the equipment. Attached Figure Description

[0016] Figure 1 This is a perspective view of the external structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the connection structure between the tank body and the air inlet pipe of the present invention; Figure 4 This is a schematic diagram of the connection structure between the tank body and the overflow pipe of the present invention; Figure 5 This is a schematic diagram of the partition structure of the present invention; Figure 6 This is a schematic diagram of the structure of the wire mesh demister of the present invention.

[0017] In the diagram: 1. Tank body; 2. Top plate; 3. Agitator; 301. Mounting plate; 302. Servo motor; 303. Rotating shaft; 304. Paddle; 4. Spraying mechanism; 401. Water distribution pipe; 402. Spiral nozzle; 403. Liquid inlet pipe; 5. Packing mechanism; 501. Assembly frame; 502. Packing body; 503. Packing discharge pipe; 6. Support leg; 7. Defogging mechanism; 701. Baffle plate; 702. Wire mesh demister; 8. Air inlet pipe; 9. Exhaust pipe; 10. Liquid outlet pipe; 11. Overflow pipe; 12. Level gauge connection pipe; 13. Lifting lug; 14. Diverter pipe A; 15. Diverter pipe B; 16. Guide pipe; 17. Drain pipe; 18. Circulation mechanism; 181. Return pipe A; 182. Return pipe B; 183. Circulation pump. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0019] Please see Figure 1-6 A supergravity ammonia removal device includes a tank 1, a top plate 2 installed on the top of the tank 1, and a stirring mechanism 3 installed on the top of the top plate 2. The stirring mechanism 3 includes a mounting plate 301 installed on the top of the top plate 2. The top plate 2 and the mounting plate 301 are assembled by nuts and bolts. The nuts are installed on the top of the mounting plate 301, and the bolt heads are fixed to the bottom of the top plate 2. A servo motor 302 is installed on the top of the mounting plate 301. A rotating shaft 303 is fixedly connected to the output end of the servo motor 302. A blade 304 is fixedly connected to the outside of the rotating shaft 303. The tank body 1 is equipped with a spraying mechanism 4 and a filling mechanism 5. The spraying mechanism 4 includes a water distribution pipe 401 installed inside the tank body 1. A spiral nozzle 402 is fixedly connected to the bottom of the water distribution pipe 401. Several spiral nozzles 402 are provided. An inlet pipe 403 is fixedly connected to the outside of the water distribution pipe 401. The inlet pipe 403 passes through the tank body 1 and extends to the outside. The filling mechanism 5 includes an assembly frame 501 fixedly connected to the inside of the tank body 1. The inside of the assembly frame 501 is provided with a filling body 502, and the outside of the tank body 1 is fixedly connected with a filling discharge pipe 503. The inner wall of the tank 1 is fixedly connected with a support leg 6, and a defoaming mechanism 7 is installed on the top of the support leg 6. The defoaming mechanism 7 is installed above the water distribution pipe 401.

[0020] The water distribution pipe 401 is shaped like a square, and the pivot 303 passes through the center of the water distribution pipe 401.

[0021] Two sets of blades 304 are provided, and blades 304 are installed inside the assembly frame 501.

[0022] In this embodiment, wastewater typically requires pretreatment before entering the high-gravity ammonia removal device. This is to ensure efficient and stable operation of the device, prevent equipment damage, and guarantee the final ammonia removal effect. First, the pH value of the wastewater is adjusted to approximately 10-12, and suspended solids and oily substances are removed to prevent the packing body 502 inside the high-gravity device from clogging its narrow channels or the packing material itself. Additionally, grease can contaminate the packing surface, reducing its mass transfer efficiency, and it can also generate a large amount of foam during the stripping process, affecting the normal operation of the equipment. After pretreatment, the wastewater enters the distribution pipe 401 through the inlet pipe 403. The wastewater is then sprayed out from the spiral nozzle 402 installed at the bottom of the distribution pipe 401. The spiral nozzle 402 has an anti-clogging effect, and the hollow cone-shaped nozzle forms a hollow cone-shaped spray of wastewater. The spray is annular, with a wide coverage area, improving the mixing effect between the wastewater and the surrounding environment. The air or steam is fully mixed, and the resulting droplets are relatively uniform in size, enhancing their penetration and preventing them from easily dispersing. During the spraying process, the servo motor 302 drives the fixed shaft 303 at its output end and the outer blades 304 to simulate a hypergravity working environment, turning the atomized wastewater into fine droplets and filaments. These droplets enter the packing body 502 from the assembly frame 501 using a large-channel interactive interface, further enhancing the two-phase interaction interface and mass transfer effect. This is more conducive to separating ammonia nitrogen from the wastewater and improving the treatment effect of ammonia nitrogen in the wastewater. The servo motor 302 is installed on the top of the mounting plate 301 with nuts and bolts. The nuts are also installed on the top of the mounting plate 301, which facilitates the disassembly of the servo motor 302 and the removal of the shaft 303 and blades 304 for easy maintenance. At the same time, this ammonia removal equipment has low requirements for mechanical seal performance.

[0023] The defogging mechanism 7 includes a partition 701 installed on the top of the support leg 6. The support leg 6 and the partition 701 are fixed by bolts. A wire mesh demister 702 is installed on the top of the partition 701.

[0024] Both the assembly frame 501 and the partition 701 adopt a perforated plate structure.

[0025] In this embodiment, when air or steam is introduced into the interior of the tank 1, the airflow and droplets / liquid come into full contact, allowing ammonia nitrogen to separate from the wastewater. The ammonia nitrogen gas passes through the wire mesh demister 702 from the baffle 701. The wire mesh demister 702 can remove tiny droplets and mist from the gas. The assembly frame 501 and baffle 701 with a porous plate structure improve the penetration efficiency of droplets and liquid filaments. At the same time, the large-channel interactive interface makes it less prone to clogging.

[0026] An air inlet pipe 8 is fixedly connected to the outside of the tank body 1. The air inlet pipe 8 is bent. An exhaust pipe 9 is fixedly connected to the top of the top plate 2.

[0027] In this embodiment, the air inlet pipe 8 is used to introduce air or steam into the tank 1. The airflow and ammonia nitrogen gas flow from the bottom to the top of the tank 1 and are discharged from the exhaust pipe 9. A tail gas collection device is installed at the exhaust pipe 9 to treat the discharged ammonia nitrogen gas and prevent ammonia nitrogen gas from polluting the environment.

[0028] The outer side of the tank body 1 is fixedly connected to a liquid outlet pipe 10, an overflow pipe 11, and a level gauge connector 12. The overflow pipe 11 is L-shaped, and the overflow pipe 11 and the level gauge connector 12 are located on the same plane. The liquid outlet pipe 10, the overflow pipe 11, and the level gauge connector 12 are arranged vertically.

[0029] In this embodiment, as the wastewater is treated, the liquid level inside the tank 1 continuously rises. The overflow pipe 11 prevents the liquid inside the tank 1 from being too much and submerging the spiral nozzle 402 or the paddle 304, thus preventing the ammonia nitrogen treatment effect in the wastewater from being affected. The outlet pipe 10 can be used to discharge the wastewater after ammonia nitrogen treatment. A level gauge mechanism can be installed at the level gauge connector 12 to monitor the liquid level of the wastewater inside the tank 1 in real time.

[0030] A diversion pipe A14 and a diversion pipe B15 are respectively installed on the outside of the inlet pipe 403 and the overflow pipe 11. Solenoid valves are installed at the two ports of the diversion pipe A14 and the diversion pipe B15. A guide pipe 16 is installed at one port of the diversion pipe A14 and a drain pipe 17 is installed at one port of the diversion pipe B15. A circulation mechanism 18 is installed between the diversion pipe A14 and the diversion pipe B15. The circulation mechanism 18 includes a return pipe A181 installed at the other port of the diversion pipe A14 and a return pipe B182 installed at the other port of the diversion pipe B15. A circulation pump 183 is installed between the return pipe A181 and the return pipe B182.

[0031] In this embodiment, some ammonia nitrogen may still remain in the wastewater after the hypergravity treatment. At this time, the liquid level inside the tank 1 can be controlled. After the wastewater is stored to a certain amount, the solenoid valves at the ports of the diversion pipe A14 and the guide pipe 16 are closed, the solenoid valves at the ports of the diversion pipe B15 and the drain pipe 17 are closed, and the solenoid valves at the ports of the diversion pipe A14 and the return pipe A181, as well as the solenoid valves at the ports of the diversion pipe B15 and the return pipe B182 are opened. The circulation pump 183 is started, and the circulation pump 183 sends the wastewater inside the tank 1 into the water distribution pipe 401 and sprays it out through the spiral nozzle 402, thereby treating the treated wastewater again to remove ammonia nitrogen, further improving the ammonia nitrogen treatment effect in the wastewater, and preventing the discharged wastewater from polluting the environment. The wastewater can be treated repeatedly, and the treated wastewater is discharged from the drain pipe 17.

[0032] The top of the top plate 2 is symmetrically fixedly connected with lifting lugs 13.

[0033] In this embodiment, the tank 1 can be selected according to the processing scale. When the tank 1 is repaired or moved, the lifting lug 13 on the top of the top plate 2 can be suspended by the suspension equipment to lift the top plate 2 or move the tank 1.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] Working principle: Before treating the wastewater, the pH value needs to be adjusted, and the wastewater needs to be filtered to remove suspended solids, grease, and hardened substances to prevent clogging of the packing body 502. After preliminary treatment, the wastewater enters the distribution pipe 401 connected to the liquid inlet pipe 403 from the guide pipe 16 connected to the diversion pipe A14. The flowing wastewater is sprayed out from the spiral nozzle 402. During this process, an air intake device is installed on the outside of the air inlet pipe 8. The airflow can be air or steam. At the same time, the servo motor 302 is started. The servo motor 302 turns the atomized wastewater sprayed by the spiral nozzle 402 into fine droplets. Some of the droplets and liquid enter the interior of the packing body 502 and come into full contact with the airflow entering from the air inlet pipe 8. This causes the ammonia nitrogen in the droplets and liquid to change from the liquid phase to the gas phase and be discharged from the exhaust pipe 9. The level gauge structure installed on the outside of the level gauge connector 12 can measure the volume of wastewater in tank 1. When deep treatment of wastewater is required, the solenoid valve between the diversion pipe A14 and the guide pipe 16 can be rotated to close, and the solenoid valve between the diversion pipe B15 and the drain pipe 17 can be closed. The solenoid valve between the diversion pipe A14 and the return pipe A181, and the solenoid valve between the diversion pipe B15 and the return pipe B182 can be opened. Then the circulation pump 183 is turned on. The circulation pump 183 discharges the liquid in tank 1 from the inlet pipe 403 into the distribution pipe 401. Then, the servo motor 302 and the blades 304 outside the rotating shaft 303 are used to form a super gravity working environment to treat the wastewater again to remove ammonia nitrogen, improve the treatment efficiency of ammonia nitrogen in wastewater, and prevent some ammonia nitrogen dissolved in wastewater from being discharged without being fully treated, which would cause pollution to the environment.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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. A supergravity ammonia removal device, comprising a tank (1), characterized in that: The top of the tank (1) is equipped with a top plate (2), and a stirring mechanism (3) is installed on the top of the top plate (2). The stirring mechanism (3) includes a mounting plate (301) installed on the top of the top plate (2). A servo motor (302) is installed on the top of the mounting plate (301). A rotating shaft (303) is fixedly connected to the output end of the servo motor (302). A blade (304) is fixedly connected to the outside of the rotating shaft (303). The tank (1) is equipped with a spraying mechanism (4) and a filling mechanism (5). The spraying mechanism (4) includes a water distribution pipe (401) installed inside the tank (1). A spiral nozzle (402) is fixedly connected to the bottom of the water distribution pipe (401). Several spiral nozzles (402) are provided. An inlet pipe (403) is fixedly connected to the outside of the water distribution pipe (401). The inlet pipe (403) extends through the tank (1) to the outside. The filling mechanism (5) includes an assembly frame (501) fixedly connected inside the tank body (1), a filling body (502) is provided inside the assembly frame (501), and a filling discharge pipe (503) is fixedly connected to the outside of the tank body (1). The inner wall of the tank (1) is fixedly connected with a support leg (6), and a defoaming mechanism (7) is installed on the top of the support leg (6). The defoaming mechanism (7) is installed above the water distribution pipe (401).

2. The ammonia removal device under ultragravity according to claim 1, characterized in that: The water distribution pipe (401) is shaped like a square, and the rotating shaft (303) passes through the center of the water distribution pipe (401).

3. The ammonia removal device under ultragravity according to claim 1, characterized in that: The blades (304) are provided in two sets, and the blades (304) are installed inside the assembly frame (501).

4. The ammonia removal device under ultragravity according to claim 1, characterized in that: The defogging mechanism (7) includes a partition (701) installed on the top of the support leg (6), the support leg (6) and the partition (701) are fixed by bolts, and a wire mesh demister (702) is installed on the top of the partition (701).

5. The ammonia removal device under ultragravity according to claim 4, characterized in that: Both the assembly frame (501) and the partition (701) are constructed using a perforated plate structure.

6. The ammonia removal device under ultragravity according to claim 1, characterized in that: An air inlet pipe (8) is fixedly connected to the outside of the tank (1). The air inlet pipe (8) is bent. An exhaust pipe (9) is fixedly connected to the top of the top plate (2).

7. The ammonia removal device under ultragravity according to claim 1, characterized in that: The outer side of the tank (1) is fixedly connected to a liquid outlet pipe (10), an overflow pipe (11), and a level gauge connector (12). The overflow pipe (11) is L-shaped. The overflow pipe (11) and the level gauge connector (12) are located on the same plane. The liquid outlet pipe (10), the overflow pipe (11), and the level gauge connector (12) are arranged vertically.

8. The ammonia removal device under ultragravity according to claim 7, characterized in that: A diversion pipe A (14) and a diversion pipe B (15) are respectively installed on the outside of the inlet pipe (403) and the overflow pipe (11). Solenoid valves are installed at the two ports of the diversion pipe A (14) and the diversion pipe B (15). A guide pipe (16) is installed at one port of the diversion pipe A (14), and a drain pipe (17) is installed at one port of the diversion pipe B (15). A circulation mechanism (18) is installed between the diversion pipe A (14) and the diversion pipe B (15). The circulation mechanism (18) includes a return pipe A (181) installed at the other port of the diversion pipe A (14), a return pipe B (182) installed at the other port of the diversion pipe B (15), and a circulation pump (183) is installed between the return pipe A (181) and the return pipe B (182).

9. The ammonia removal device under ultragravity according to claim 1, characterized in that: The top of the top plate (2) is symmetrically fixedly connected with lifting lugs (13).

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