Efficient ammonia equipment of bubble shock steaming

Abstract

The utility model discloses a kind of high-efficiency bubble shock ammonia equipment, and its technical solution main point is: including ammonia still and the water inlet assembly and bubble shock ammonia assembly being set on the ammonia still;The water inlet assembly includes spray pipe and water inlet pipe, the spray pipe is through the outer circular wall surface of the ammonia still and extends to its inside, a section of bottom surface in the inside of the ammonia still is fixedly installed with nozzle, the bubble shock ammonia assembly includes film-hanging heater, steam inlet pipe, steam distribution system, ammonia steam exhaust pipe and ammonia still wastewater exhaust pipe;By setting bubble shock ammonia assembly, film-hanging heater can directly heat wastewater and steam medium in tank, promote temperature in tank, steam distribution system is introduced external steam by steam inlet pipe, is distributed to each steam distribution pipe branch pipe by steam distribution pipe main pipe, steam is dispersed into a large number of bubbles and sprays, bubble forms violent bubble shock effect with wastewater in the process of rising, strengthens the mass transfer process of ammonia from liquid phase to gas phase, improves ammonia efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of ammonia stripping equipment, specifically to a high-efficiency foam-vibration ammonia stripping equipment. Background Technology

[0002] Ammonia stripping towers are key environmental protection and resource recovery equipment for treating ammonia-containing wastewater in chemical plants such as coking plants, synthetic ammonia plants, and methanol plants. They are primarily used to remove ammonia nitrogen (NH3-N) from wastewater generated during chemical production processes, significantly reducing the ammonia nitrogen pollution load and creating conditions for subsequent biochemical treatment. Furthermore, they enable the recovery and utilization of ammonia resources, offering both significant environmental and economic benefits. The core step is steam stripping to volatilize ammonia.

[0003] Current ammonia stripping tower equipment mainly consists of a vertical multi-stage tray structure, which suffers from low ammonia stripping efficiency, complex structure, and susceptibility to scaling, clogging, and impact damage, resulting in high maintenance and repair costs and difficulty in cleaning after clogging. Simplifying the structure and facilitating maintenance can not only maintain stable effluent quality after ammonia stripping but also ensure stable energy consumption, thus reducing the operating cost of ammonia stripping towers and carbon emissions, which has significant economic and social benefits.

[0004] This invention is a novel ammonia stripping equipment with simple structure, convenient maintenance, and low steam consumption, which can effectively reduce the steam consumption of the ammonia stripping tower. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a high-efficiency foaming and shaking ammonia stripping equipment, which solves the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A high-efficiency foam-vibration ammonia stripping equipment includes:

[0008] Ammonia stripping tank and a water inlet assembly and a foaming ammonia stripping assembly installed on the ammonia stripping tank;

[0009] The water inlet assembly includes a spray pipe and a water inlet pipe. The spray pipe penetrates the outer circular wall of the ammonia steaming tank and extends into its interior. A nozzle is fixedly installed on the bottom surface of a section of the spray pipe inside the ammonia steaming tank. The water inlet pipe is connected to the end of the spray pipe located outside the ammonia steaming tank.

[0010] The outer circular wall of the ammonia steam tank is also provided with a nozzle inspection port corresponding to the position of the spray pipe, and the nozzle inspection port is connected to the inside of the spray pipe.

[0011] The foam-vibration ammonia stripping assembly includes a film heater, a steam inlet pipe, a steam distribution system, an ammonia exhaust pipe, and an ammonia stripping wastewater discharge pipe.

[0012] The film heater is fixedly installed on the inner circular wall of the ammonia steaming tank and is used to heat the medium inside the tank.

[0013] The steam distribution system includes a main steam distribution pipe and several branch steam distribution pipes. One end of the steam inlet pipe is connected to an external steam source, and the other end passes through the wall of the ammonia steaming tank and is connected to the main steam distribution pipe. The main steam distribution pipe is horizontally installed inside the ammonia steaming tank. Each branch steam distribution pipe is vertically connected to the bottom of the main steam distribution pipe and is evenly distributed along its length. Several outlets are provided on the branch steam distribution pipes to disperse the steam into bubbles and spray them out.

[0014] The ammonia vapor discharge pipe is located on the outer circular wall at the top of the ammonia stripping tank and is used to discharge the ammonia vapor generated during the ammonia stripping process.

[0015] The ammonia stripping wastewater discharge pipe is located on the outer circular wall at the bottom of the ammonia stripping tank and is used to discharge the wastewater after ammonia stripping treatment by foaming and shaking.

[0016] Preferably, the outer circular wall of the ammonia steaming tank is provided with a manhole, which is located in the middle of the side of the ammonia steaming tank, and the manhole is equipped with a sealing cover, which is connected to the ammonia steaming tank by a flange and bolts.

[0017] Preferably, the ammonia stripping tank is equipped with several water flow baffles inside.

[0018] Preferably, the outer circular wall of the ammonia steaming tank is provided with a pressure transmitter interface and a pressure gauge interface, both of which are connected to the interior of the ammonia steaming tank.

[0019] Preferably, the outer circular wall of the ammonia steaming tank is provided with a sampling port, which is located on the side of the ammonia steaming tank near the bottom, and a valve for controlling sampling is installed on the sampling port, which is connected to the inside of the ammonia steaming tank.

[0020] Preferably, the ammonia vaporizing tank has a horizontal structure.

[0021] In summary, the present invention has the following main advantages:

[0022] By installing a bubble-vibration ammonia stripping assembly, the wastewater to be treated is transported to the spray nozzle through the inlet pipe. The spray nozzle guides the wastewater into the ammonia stripping tank and evenly sprays it into the tank through nozzles on its bottom surface. Simultaneously, external steam enters the steam distribution main pipe through the steam inlet pipe, and is then distributed to the branch pipes of the steam distribution main pipe. The steam disperses into a large number of bubbles through the outlets on the branch pipes, escaping upwards and forming a counter-current contact with the falling wastewater. A film heater heats the wastewater and steam mixture in the ammonia stripping tank, raising the tank temperature. Under the heating effect and the bubble-vibration disturbance, ammonia molecules in the wastewater rapidly volatilize and enter the gas phase to form ammonia vapor. Ammonia vapor rises to the top of the ammonia stripping tank and is discharged through the ammonia vapor discharge pipe; the wastewater after ammonia stripping is collected to the bottom of the tank under gravity and discharged through the ammonia stripping wastewater discharge pipe. The steam is dispersed into a large number of bubbles through the main pipe and branch pipes of the steam distribution pipe, which fully contact the wastewater sprayed by the nozzle. Combined with the heating effect of the film heater, the gas-liquid mass transfer is enhanced by bubble vibration disturbance, which significantly accelerates the volatilization and separation rate of ammonia and improves the ammonia stripping efficiency.

[0023] By setting up nozzle inspection ports, which are correspondingly set up with the nozzle pipe and internally connected, the nozzles can be directly inspected, cleaned or replaced, reducing equipment disassembly steps and minimizing downtime losses. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0025] Figure 2 This is a schematic plan view of the ammonia stripping tank of this utility model;

[0026] Figure 3 yes Figure 2 A magnified schematic diagram of the local structure at point A in the middle.

[0027] Attached reference numerals: 1. Ammonia vaporizing tank; 2. Spray pipe; 3. Nozzle; 4. Water inlet pipe; 5. Film-coated heater; 6. Steam pipe; 7. Steam distribution pipe main pipe; 8. Steam distribution pipe branch pipe; 9. Ammonia vapor discharge pipe; 10. Ammonia vaporizing wastewater discharge pipe; 11. Nozzle inspection port; 12. Manhole; 13. Water flow baffle; 14. Pressure transmitter interface; 15. Pressure gauge interface; 16. Sampling port. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] refer to Figure 1 , Figure 2 and Figure 3 A high-efficiency foam-vibration ammonia stripping equipment, comprising:

[0030] Ammonia stripping tank 1 and water inlet assembly and foaming ammonia stripping assembly installed on ammonia stripping tank 1;

[0031] The water inlet assembly includes a spray pipe 2 and a water inlet pipe 4. The spray pipe 2 penetrates the outer circular wall of the ammonia steaming tank 1 and extends into its interior. A nozzle 3 is fixedly installed on the bottom surface of a section of the spray pipe 2 inside the ammonia steaming tank 1. The water inlet pipe 4 is connected to the end of the spray pipe 2 located outside the ammonia steaming tank 1.

[0032] The outer circular wall of the ammonia steam tank 1 is also provided with a nozzle inspection port 11 corresponding to the position of the spray pipe 2. The nozzle inspection port 11 is connected to the inside of the spray pipe 2.

[0033] The ammonia stripping assembly includes a film heater 5, a steam inlet pipe 6, a steam distribution system, an ammonia exhaust pipe 9, and an ammonia wastewater discharge pipe 10.

[0034] The film heater 5 is fixedly installed on the inner circular wall of the ammonia steaming tank 1 and is used to heat the medium inside the tank;

[0035] The steam distribution system includes a steam distribution main pipe 7 and several steam distribution branch pipes 8. One end of the steam inlet pipe 6 is connected to an external steam source, and the other end passes through the wall of the ammonia steaming tank 1 and is connected to the steam distribution main pipe 7. The steam distribution main pipe 7 is horizontally installed inside the ammonia steaming tank 1. Each steam distribution branch pipe 8 is vertically connected to the bottom of the steam distribution main pipe 7 and is evenly distributed along its length. Several outlets are opened on the steam distribution branch pipes 8 to disperse the steam into bubbles and spray them out.

[0036] Ammonia vapor discharge pipe 9 is installed on the outer circular wall at the top of ammonia vapor tank 1 to discharge ammonia vapor generated during the ammonia vapor removal process;

[0037] The ammonia stripping wastewater discharge pipe 10 is installed on the outer circular wall at the bottom of the ammonia stripping tank 1 to discharge the wastewater after ammonia stripping treatment by foaming and shaking.

[0038] By setting up a foam-vibration ammonia stripping assembly, the ammonia stripping tank 1 serves as the main body of the equipment, providing an installation foundation for the water inlet assembly and the foam-vibration ammonia stripping assembly. The nozzles 3 in the water inlet assembly can directionally spray the wastewater transported by the water inlet pipe 4 into the tank, creating a distribution pattern within the tank. To ensure sufficient contact with steam, the film heater 5 can directly heat the wastewater and steam medium inside the tank, increasing the tank temperature and accelerating the volatilization rate of ammonia in the wastewater, providing heat support for ammonia stripping. The steam distribution system introduces external steam through the steam inlet pipe 6 and distributes it to the main steam distribution pipe 7. Each steam distribution pipe branch pipe 8 has an outlet on it that disperses the steam into a large number of bubbles and sprays them out. During the rising process, the bubbles form a strong bubble shock effect with the wastewater, which increases the gas-liquid contact area and contact intensity, strengthens the mass transfer process of ammonia from the liquid phase to the gas phase, and improves the ammonia stripping efficiency. The ammonia vapor discharge pipe 9 can discharge the stripped ammonia vapor in time, avoid the ammonia vapor from staying in the tank and causing the partial pressure to rise, which would inhibit the further volatilization of ammonia and ensure that the ammonia stripping reaction continues. The ammonia stripping wastewater discharge pipe 10 can discharge the wastewater after ammonia stripping treatment in time.

[0039] As a further embodiment of this utility model, a manhole 12 is provided on the outer circular wall of the ammonia steaming tank 1. The manhole 12 is located in the middle of the side of the ammonia steaming tank 1, and a sealing cover is provided on the manhole 12. The sealing cover is connected to the ammonia steaming tank 1 by a flange and bolts.

[0040] By providing manhole 12, operators can enter the interior of the ammonia steaming tank 1, facilitating the inspection, maintenance, replacement, or cleaning of components such as the film heater 5, the main steam distribution pipe 7, and the branch steam distribution pipe 8 inside the tank.

[0041] As a further embodiment of this utility model, the ammonia stripping tank 1 is provided with a number of water flow baffles 13 inside;

[0042] By setting up the water flow baffle 13, the flow path of the wastewater in the ammonia vaporizing tank 1 can be changed, forcing the wastewater to form a tortuous flow trajectory in the tank, extending the residence time of the wastewater in the tank, and allowing the wastewater to have more time to contact the rising steam, thereby improving the volatilization efficiency of ammonia.

[0043] As a further embodiment of this utility model, the outer circular wall of the ammonia steaming tank 1 is provided with a pressure transmitter interface 14 and a pressure gauge interface 15, both of which are connected to the interior of the ammonia steaming tank 1.

[0044] By setting up pressure transmitter interface 14, a pressure transmitter can be connected to convert the pressure signal inside the ammonia vaporization tank 1 into an electrical signal and transmit it to the control system. This enables remote real-time monitoring and automatic recording of the pressure inside the tank, allowing operators in the central control room to promptly grasp pressure changes. Pressure gauge interface 15 can be connected to a pressure gauge, which can intuitively display the pressure value inside the ammonia vaporization tank 1. This allows operators to quickly read pressure information on-site, ensuring accurate reflection of the actual pressure state inside the tank and avoiding pressure monitoring distortion due to interface problems. This not only meets the needs of automated monitoring but also ensures the convenience of on-site intuitive viewing, improving the comprehensiveness and reliability of pressure monitoring inside the ammonia vaporization tank 1. It helps to promptly detect pressure anomalies and take measures to reduce safety risks caused by pressure problems, ensuring stable equipment operation.

[0045] As a further embodiment of this utility model, a sampling port 16 is provided on the outer circular wall of the ammonia steaming tank 1. The sampling port 16 is located on the side of the ammonia steaming tank 1 near the bottom, and a valve for controlling sampling is installed on the sampling port 16. The sampling port 16 is connected to the inside of the ammonia steaming tank 1.

[0046] By setting up sampling port 16, it is convenient for operators to obtain wastewater samples after ammonia stripping treatment.

[0047] As a further embodiment of this utility model, the ammonia steaming tank 1 has a horizontal structure;

[0048] By setting up the ammonia stripping tank 1, the overall height of the horizontal ammonia stripping tank 1 is significantly reduced compared to the vertical structure, which can effectively save vertical space and is more suitable for scenarios where the height of the factory is limited. This improves the adaptability of the equipment to the installation environment. Due to the reduced height, the various interfaces set on the outer circular wall of the ammonia stripping tank 1, such as the pressure transmitter interface 14, pressure gauge interface 15, sampling port 16, manhole 12, nozzle inspection port 11, etc., are located closer to the ground or a lower operating platform. Operators can conveniently perform sampling, pressure monitoring, equipment maintenance and other operations without climbing, reducing the dependence on high-altitude work platforms and lowering the difficulty of operation and safety risks.

[0049] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency foam-vibration ammonia stripping equipment, characterized in that, include: Ammonia stripping tank (1) and water inlet assembly and foam-vibration ammonia stripping assembly installed on the ammonia stripping tank (1); The water inlet assembly includes a spray pipe (2) and a water inlet pipe (4). The spray pipe (2) penetrates the outer circular wall of the ammonia steaming tank (1) and extends into its interior. A nozzle (3) is fixedly installed on a section of the bottom surface of the spray pipe (2) inside the ammonia steaming tank (1). The water inlet pipe (4) is connected to one end of the spray pipe (2) located outside the ammonia steaming tank (1). The outer circular wall of the ammonia steam tank (1) is also provided with a nozzle inspection port (11) corresponding to the position of the spray pipe (2), and the nozzle inspection port (11) is connected to the inside of the spray pipe (2); The ammonia stripping assembly includes a film heater (5), a steam inlet pipe (6), a steam distribution system, an ammonia exhaust pipe (9), and an ammonia wastewater discharge pipe (10). The film heater (5) is fixedly installed on the inner circular wall of the ammonia steaming tank (1) and is used to heat the medium inside the tank; The steam distribution system includes a main steam distribution pipe (7) and several branch steam distribution pipes (8). One end of the steam inlet pipe (6) is connected to an external steam source, and the other end passes through the wall of the ammonia steaming tank (1) and is connected to the main steam distribution pipe (7). The main steam distribution pipe (7) is horizontally arranged inside the ammonia steaming tank (1). Each branch steam distribution pipe (8) is vertically connected to the bottom of the main steam distribution pipe (7) and is evenly distributed along its length. Several outlets are provided on the branch steam distribution pipes (8) for dispersing steam into bubbles and spraying them out. The ammonia vapor discharge pipe (9) is located on the outer circular wall at the top of the ammonia steaming tank (1) and is used to discharge the ammonia vapor generated during the ammonia steaming process. The ammonia stripping wastewater discharge pipe (10) is located on the outer circular wall at the bottom of the ammonia stripping tank (1) and is used to discharge the wastewater after ammonia stripping treatment by foaming and shaking.

2. The high-efficiency foam-vibration ammonia stripping equipment according to claim 1, characterized in that, The outer circular wall of the ammonia steaming tank (1) is provided with a manhole (12), which is located in the middle of the side of the ammonia steaming tank (1). The manhole (12) is equipped with a sealing cover, which is connected to the ammonia steaming tank (1) by a flange and bolts.

3. The high-efficiency foam-vibration ammonia stripping equipment according to claim 1, characterized in that, The ammonia stripping tank (1) is equipped with several water flow baffles (13).

4. The high-efficiency foam-vibration ammonia stripping equipment according to claim 1, characterized in that, The outer circular wall of the ammonia vaporizing tank (1) is provided with a pressure transmitter interface (14) and a pressure gauge interface (15), both of which are connected to the interior of the ammonia vaporizing tank (1).

5. The high-efficiency foam-vibration ammonia stripping equipment according to claim 1, characterized in that, The outer circular wall of the ammonia steaming tank (1) is provided with a sampling port (16). The sampling port (16) is located on the side of the ammonia steaming tank (1) near the bottom. A valve for controlling sampling is installed on the sampling port (16). The sampling port (16) is connected to the inside of the ammonia steaming tank (1).

6. The high-efficiency foam-vibration ammonia stripping equipment according to claim 1, characterized in that, The ammonia vaporizer (1) is a horizontal structure.

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