Deodorizing device for large-scale prawn culture
By using biological denitrification technology in shrimp farming deodorization equipment to combine ammonia and nitration processes, the problem of difficult to control the amount of flocculant is solved, efficient ammonia nitrogen wastewater treatment is achieved, and chemical agent use and operation costs are reduced, and it is suitable for scale-up Breeding.
Patent Information
- Application Number
- CN202420256637.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing deodorizing device used for South American white shrimp farming is difficult to accurately control the amount of flocculant when treating ammonia nitrogen wastewater, resulting in poor treatment effect. Too much physical and chemical methods will affect the water quality.
Design a deodorizing device including a biological nitrogen denitrider, a precipitation tank, a filter mechanism and a longitudinal stirring mechanism. Use the biological nitrogen denitrition technology in the reaction tank to treat ammonia nitrogen wastewater, combine the ammonia and nitration process, and pass aeration and stirring. The device promotes denitrification and nitration reactions, reduces chemical use, simplifies structure and reduces operating costs.
It effectively reduces the use of chemical agents, reduces the impact on water quality, simplifies structural design, reduces operating costs, and improves the deodorization effect. It is suitable for the application of large-scale shrimp farming industry.
Smart Images
Figure CN222159917U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aquaculture, in particular to a deodorizing device used for large-scale shrimp farming. Background Art
[0002] One of the most important issues in the large-scale shrimp farming process is the treatment of aquaculture wastewater. Shrimp farming wastewater is ammonia nitrogen wastewater with a strong odor. The existing patent (Announcement No.: CN211311192U) discloses a deodorizing device for whiteleg shrimp farming. The utility model sets a sedimentation tank and adds flocculants into the sedimentation tank to precipitate impurities in the dirty water. The precipitated sewage is then filtered and treated, which can achieve a good deodorizing effect. However, in actual applications, when using physical and chemical methods to treat ammonia nitrogen wastewater, if the amount of flocculant is too little, it will lead to the inability to completely precipitate impurities. If the amount of flocculant is too much, it will cause the water quality to deteriorate. It is necessary to ensure the accuracy of the amount of flocculant at all times, which increases the difficulty of treatment and is not conducive to actual treatment. To this end, we propose a deodorizing device for large-scale shrimp farming. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a deodorizing device for large-scale shrimp farming.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A deodorizing device for large-scale shrimp farming is designed, comprising a shell, wherein a biological denitrifier, a sedimentation tank, a filtering mechanism and a longitudinal stirring mechanism are arranged in sequence up and down in the shell, wherein the biological denitrifier comprises a reaction tank with a water inlet pipe connected to the top, a stirrer connected to a motor and extending deep into the bottom of the reaction tank is provided on the side of the reaction tank close to the water inlet pipe, an aeration pipe and an exhaust pipe connected to the outside are transversely provided in the reaction tank, and the bottom end of the reaction tank is connected to the sedimentation tank, the bottom end of the sedimentation tank is connected to the reaction tank through a sludge pump, a liquid level sensor is installed on the sedimentation tank, the sedimentation tank is connected to the filtering mechanism through a drain pipe, an ultraviolet disinfection lamp is provided at the bottom of the filtering mechanism, and an output pipe is connected to the bottom end of the shell.
[0006] In the above scheme, a mounting frame is fixedly provided in the shell, and the reaction tank, sedimentation tank and sludge pump are installed on the mounting frame.
[0007] In the above scheme, a closing plate is connected to the bottom of the reaction tank, and a discharge hopper connected to the sedimentation tank is installed on the closing plate.
[0008] In the above scheme, the exhaust pipe is located in the middle of the reaction tank, and the exhaust pipe is inserted into the bottom end of the reaction tank, and exhaust holes are evenly opened on the exhaust pipe located in the reaction tank.
[0009] In the above scheme, ventilation holes are evenly arranged on the aeration pipe located in the reaction tank.
[0010] In the above scheme, the shell is provided with an assembly cylinder, the outer wall of the reaction tank is provided with a connecting cylinder connected to the assembly cylinder, the aeration pipe is threadedly connected to the connecting cylinder and the assembly cylinder, and a limiting plate is fixed at one end of the aeration pipe to press against the assembly cylinder.
[0011] In the above scheme, the longitudinal stirring mechanism includes a pair of horizontal transmission shafts equipped with worm gears, stirring rods are evenly arranged on the transmission shafts, support plates fixed to the inner wall of the shell are installed at both ends of the transmission shafts, a worm located below the ultraviolet disinfection lamp is meshed between the worm gears, and the worm is connected to motor 2.
[0012] The advantages and beneficial effects of the utility model are as follows: by setting a biological denitrifier and utilizing a reaction tank, the organic matter contained in the sewage transported by the water inlet pipe is first involved in the denitrification process, which not only helps to consume part of the organic matter, but also helps to generate alkalinity, which is directly supplemented to the nitrification process at the rear end to ensure the reaction conditions of the nitrification process. The nitrification and denitrification reactions can be completed in the same reaction tank. Compared with the prior art, the biological denitrification technology is utilized to treat ammonia nitrogen wastewater, which effectively reduces the use of chemical agents, reduces the impact on water quality, and is energy-saving and environmentally friendly. Compared with the general biological denitrification system, it not only simplifies the structural design, but also reduces the operating cost, and is more conducive to the use of large-scale shrimp farming industry to achieve better deodorization effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0014] Figure 1 This is a schematic diagram of the structure of the deodorizing device for large-scale shrimp farming proposed by the utility model;
[0015] Figure 2 This is a cross-sectional view of the shell of the deodorizing device for large-scale shrimp farming proposed by the utility model;
[0016] Figure 3 The utility model is a schematic diagram of the internal structure of the reaction tank of the deodorization device for large-scale shrimp farming.
[0017] In the figure: shell 1, water inlet pipe 2, mounting frame 3, biological denitrifier 4, reaction tank 41, closing plate 42, agitator 43, exhaust pipe 44, exhaust hole 441, aeration pipe 45, limit plate 451, vent 452, connecting tube 46, discharge hopper 47, motor 1 48, assembly tube 5, sedimentation tank 6, liquid level sensor 7, sludge pump 8, drain pipe 9, filtering mechanism 10, ultraviolet disinfection lamp 11, motor 2 12, worm 13, worm wheel 14, transmission shaft 15, support plate 16, output pipe 17, stirring rod 18. DETAILED DESCRIPTION
[0018] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
[0019] See also Figure 1-3 The utility model provides a technical solution: a deodorizing device for large-scale shrimp farming, comprising a shell 1, wherein a biological denitrifier 4, a sedimentation tank 6, a filtering mechanism 10 and a longitudinal stirring mechanism are arranged in sequence in the shell 1, the biological denitrifier 4 comprises a reaction tank 41 connected to a water inlet pipe 2 at the top, a stirrer 43 connected to a motor 48 and extending deep into the bottom of the reaction tank 41 is arranged near the water inlet pipe 2, and an aeration pipe 45 and an exhaust pipe 44 connected to the outside are arranged horizontally in the reaction tank 41;
[0020] Specifically, the reaction tank 41 is provided with nitrite bacteria and nitrate bacteria for nitrification, denitrifying bacteria and other bacteria for denitrification, and ammonifying bacteria for ammonification. Since both ammonification and nitrification require oxygen, in order to simplify the structure, in the present invention, the ammonification and nitrification processes are combined. Since the ammonification process consumes organic matter, and denitrification requires the addition of organic matter, and nitrifying bacteria also require an alkaline environment to work, denitrification is performed first, which not only helps consume organic matter, but also provides an alkalinity environment to promote ammonification and nitrification, saving costs. In the same reaction tank 41, there is an internal circulation, and the nitrified liquid generated by the nitrification reaction at the rear end flows back to the front end to promote the denitrification.
[0021] Furthermore, the aeration pipe 45 in the reaction tank 41 is evenly provided with ventilation holes 452 to facilitate the diffusion of oxygen and promote the progress of ammoniation and nitrification.
[0022] Specifically, the exhaust pipe 44 is located in the middle of the reaction tank 41, the top of the exhaust pipe 44 passes through the shell 1, and the exhaust pipe 44 is inserted into the bottom of the reaction tank 41. Exhaust holes 441 are evenly opened on the exhaust pipe 44 in the reaction tank 41, so that the nitrogen generated by denitrification can be discharged to the outside.
[0023] The bottom end of the reaction tank 41 is connected to the precipitation tank 6;
[0024] Furthermore, a closing plate 42 is connected to the bottom of the reaction tank 41 so that the stirrer 43 and other structures can be placed therein, and a discharge hopper 47 connected to the sedimentation tank 6 is installed on the closing plate 42;
[0025] Specifically, the closing plate 42 is assembled and connected to the reaction tank 41 through fasteners, the top of the sedimentation tank 6 is open, and the discharge hopper 47 is used to discharge the sewage and sludge in the reaction tank 41 into the sedimentation tank 6.
[0026] The bottom end of the sedimentation tank 6 is connected to the reaction tank 41 through the sludge pump 8; the extraction end of the sludge pump 8 is connected to the bottom end of the sedimentation tank 6 through the sludge pipe, and the output end of the sludge pump 8 is connected to the reaction tank 41 through the reflux pipe. The sludge pump 8 is started to extract the sludge in the sedimentation tank 6 and output it back to the reaction tank 41, so that the activated sludge with sufficient microorganisms is fully mixed with the sewage, thereby thoroughly denitrifying the sewage.
[0027] Further, the shell 1 is provided with an assembly tube 5, the outer wall of the reaction tank 41 is provided with a connecting tube 46 connected to the assembly tube 5, the aeration tube 45 is threadedly connected with the connecting tube 46 and the assembly tube 5, and one end of the aeration tube 45 is fixed with a limiting plate 451 that is tightly pressed against the assembly tube 5, and the limiting plate 451 is actually a ring body, and the radius is larger than the assembly tube 5; during actual assembly, it is only necessary to insert one end of the aeration tube 45 into the assembly tube 5 and the connecting tube 46 in turn and tighten them, so that the limiting plate 451 is limited by the end of the assembly tube 5 during the tightening process, so as to position and assemble the aeration tube 45, and facilitate disassembly;
[0028] Specifically, by setting up the biological denitrifier 4 and utilizing the reaction tank 41, the organic matter contained in the sewage transported by the water inlet pipe 2 is first involved in the denitrification process, which not only helps to consume part of the organic matter, but also helps to generate alkalinity, which is directly supplemented to the nitrification process at the back end to ensure the reaction conditions of the nitrification process. The nitrification and denitrification reactions can be completed in the same reaction tank 41. Compared with the prior art, the use of biological denitrification technology to treat ammonia nitrogen wastewater effectively reduces the use of chemical agents, reduces the impact on water quality, saves energy and is environmentally friendly. Compared with the general biological denitrification system, it not only simplifies the structural design, but also reduces the operating cost, and is more conducive to the use of large-scale shrimp farming industry to achieve better deodorization effect.
[0029] Furthermore, a mounting frame 3 is fixedly provided in the housing 1, and the reaction tank 41, the sedimentation tank 6, and the sludge pump 8 are installed on the mounting frame 3, so as to install the biological denitrifier 4 and the sedimentation tank 6;
[0030] A liquid level sensor 7 is installed on the sedimentation tank 6, and the sedimentation tank 6 is connected to the filter mechanism 10 through a drain pipe 9; the sewage in the upper layer of the sedimentation tank 6 is introduced into the filter mechanism 10 by means of the drain pipe 9, wherein a solenoid valve is installed on the drain pipe 9, and the real-time water level of the sedimentation tank 6 is detected by means of the liquid level sensor 7. When the warning water level is reached, the solenoid valve is opened, so that the drain pipe 9 starts to drain water, so as to prevent the sewage from overflowing into the housing 1 and affecting the process of sewage treatment;
[0031] Specifically, the filter mechanism 10 includes a filter tank with a cavity in the center, and multiple layers of filter structures are arranged up and down in the cavity, including a HEPA filter layer, a PP cotton layer, and an activated carbon filter layer from top to bottom, so as to fully filter the denitrified sewage and assist in deodorization.
[0032] An ultraviolet disinfection lamp 11 is provided at the bottom of the filter mechanism 10, and the ultraviolet disinfection lamp 11 is evenly installed at the bottom of the filter tank to disinfect the filtered water flow. An output pipe 17 is connected to the bottom of the shell 1, and the fully treated water flow is discharged from the shell 1 by the output pipe 17;
[0033] Furthermore, the longitudinal stirring mechanism includes a pair of horizontal transmission shafts 15 with worm gears 14 installed, stirring rods 18 are evenly arranged on the transmission shafts 15, and support plates 16 fixed to the inner wall of the shell 1 are installed at both ends of the transmission shafts 15. A worm 13 located below the ultraviolet disinfection lamp 11 is meshed between the worm gears 14, and the worm 13 is connected to the motor 2 12.
[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A deodorizing device for large-scale shrimp farming, comprising a housing (1), It is characterized in that The housing (1) is provided with a biological denitrifier (4), a sedimentation tank (6), a filtering mechanism (10) and a longitudinal stirring mechanism arranged in sequence from top to bottom. The biological denitrifier (4) comprises a reaction tank (41) having a water inlet pipe (2) connected to the top thereof. A stirrer (43) connected to a motor (48) and extending deep into the bottom of the reaction tank (41) is provided on the side of the reaction tank (41) close to the water inlet pipe (2). An aeration pipe (45) and an exhaust pipe (44) communicating with the outside are transversely provided in the reaction tank (41). The bottom end of the reaction tank (41) is connected to the sedimentation tank (6). The bottom end of the sedimentation tank (6) is connected to the reaction tank (41) via a sludge pump (8). A liquid level sensor (7) is installed on the sedimentation tank (6). The sedimentation tank (6) is connected to the filtering mechanism (10) via a drainage pipe (9). An ultraviolet disinfection lamp (11) is provided at the bottom of the filtering mechanism (10). The bottom end of the housing (1) is connected to an output pipe (17).
2. The deodorizing device for large-scale shrimp farming according to claim 1, It is characterized in that A mounting frame (3) is fixedly provided inside the shell (1), and the reaction tank (41), the sedimentation tank (6), and the sludge pump (8) are installed on the mounting frame (3).
3. The deodorizing device for large-scale shrimp farming according to claim 1, It is characterized in that The bottom of the reaction tank (41) is connected to a closing plate (42), and a discharge hopper (47) connected to the sedimentation tank (6) is installed on the closing plate (42).
4. The deodorizing device for large-scale shrimp farming according to claim 1, It is characterized in that The exhaust pipe (44) is located in the middle of the reaction tank (41), and the exhaust pipe (44) is inserted into the bottom end of the reaction tank (41). Exhaust holes (441) are evenly opened on the exhaust pipe (44) located in the reaction tank (41).
5. The deodorizing device for large-scale shrimp farming according to claim 1, It is characterized in that The aeration pipe (45) located in the reaction tank (41) is evenly provided with ventilation holes (452).
6. The deodorizing device for large-scale shrimp farming according to claim 1, It is characterized in that The shell (1) is provided with an assembly cylinder (5), the outer wall of the reaction tank (41) is provided with a connecting cylinder (46) connected to the assembly cylinder (5), the aeration pipe (45) is threadedly connected to the connecting cylinder (46) and the assembly cylinder (5), and a limiting plate (451) is fixed at one end of the aeration pipe (45) and is tightly pressed against the assembly cylinder (5).
7. The deodorizing device for large-scale shrimp farming according to claim 1, It is characterized in that The longitudinal stirring mechanism comprises a pair of horizontal transmission shafts (15) equipped with worm gears (14), stirring rods (18) are evenly arranged on the transmission shafts (15), support plates (16) fixed to the inner wall of the housing (1) are installed at both ends of the transmission shafts (15), a worm (13) located below the ultraviolet disinfection lamp (11) is meshed between the worm gears (14), and the worm (13) is connected to the second motor (12).