Aquaculture wastewater decolorizing device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to an aquaculture wastewater decolorizing device. Comprising a treatment tank. According to the device disclosed by the utility model, the closing cover can be effectively closed and fixed through the arranged fixing assembly, and meanwhile, a worker can conveniently open the closing cover, so that the worker can conveniently disassemble and replace the filtering assembly, and impurities in wastewater can be effectively intercepted and filtered through the arranged filtering assembly; according to the wastewater decolorization treatment device, the wastewater can be effectively filtered and decolorized, so that the wastewater decolorization effect is achieved, odor generated in the wastewater decolorization treatment process can be effectively purified through the arranged purification assembly, and wastewater which is not completely decolorized can be effectively filtered and decolorized again through the arranged circulation assembly, so that the wastewater decolorization effect can be effectively improved; and through the arrangement of the mounting assembly, a worker can conveniently replace a filter plate in the purification assembly, so that the purification effect of the purification assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a decolorizing device for aquaculture wastewater. Background Art

[0002] Since livestock and poultry breeding wastewater contains a large amount of sediment and livestock and poultry manure, the wastewater is dark in color and requires an aquaculture wastewater decolorization device to decolorize the wastewater.

[0003] The decolorization device in the prior art generally adopts a filter when decolorizing wastewater. The filter is used to intercept and filter impurities in the wastewater, so that the wastewater can achieve the effect of decolorization. However, after long-term use, the filter will inevitably become clogged, and the decolorization device in the prior art is generally integrated, which will make it impossible for the staff to conveniently disassemble, replace or clean the filter, so that the filter cannot effectively intercept and filter impurities in the wastewater, which will further affect the decolorization efficiency and effect of the wastewater. In addition, the decolorization device in the prior art cannot conveniently and effectively replace the purification layer. After the purification layer is used for a long time, it will also become clogged, which will cause the purification layer to be unable to effectively adsorb and purify the odor in the gas. In addition, the decolorization device in the prior art cannot circulate the decolorization and filtration of the wastewater that has not been completely decolorized, which will also affect the decolorization effect of the wastewater.

[0004] The Chinese patent with the announcement number CN219991202U discloses a decolorization device for livestock and poultry wastewater, which relates to the technical field of livestock and poultry wastewater treatment, including a decolorization tank with an inlet pipe, an outlet pipe and a filter net respectively arranged on both sides and inside, a solenoid valve arranged on the outlet pipe, an odor purification mechanism for purifying odor arranged in the decolorization tank, and the odor purification mechanism comprising a mounting part, a fan and a purification layer, the mounting part is arranged in the decolorization tank, the fan and the purification layer are both arranged in the mounting part, an exhaust pipe and an air intake pipe are respectively arranged on both sides of the decolorization tank, a mounting hole is opened in the mounting part, and the fan and the purification layer are both arranged in the mounting hole. The utility model has a simple structure, convenient operation, and multiple functions. It is not only convenient for decolorization of livestock and poultry wastewater, but also can purify the odor generated during the decolorization process of wastewater, prevent the odor from being discharged and polluting the environment, and is conducive to promotion and use.

[0005] The above scheme can effectively decolorize wastewater and purify the odor generated during the decolorization process of the wastewater, but the above scheme still cannot conveniently and effectively disassemble and replace the filter screen and the purification layer. At the same time, the above scheme cannot circulate the decolorization and filtration of the wastewater that has not been completely decolorized, and fails to solve the problems raised in the above background technology.

[0006] Therefore, those skilled in the art have provided an aquaculture wastewater decolorization device to solve the problems raised in the above background technology. Utility Model Content

[0007] The utility model aims to provide a decolorization device for aquaculture wastewater, comprising a treatment tank and:

[0008] A closing cover is located above the processing tank, the closing cover and the processing tank are hingedly connected via a hinge, the outside of the closing cover is fixedly connected to a mounting plate, the bottom of the mounting plate is fixedly connected to a mounting block, and the outside of the processing tank is fixedly connected to a fixing frame;

[0009] A fixing assembly is arranged inside the mounting block and is used to fix the mounting block to the fixing frame;

[0010] A filtering assembly is arranged inside the treatment tank and is used to filter and decolorize the wastewater;

[0011] A water inlet pipe is connected to the outside of the treatment tank, and the bottom of the treatment tank is connected to a drain pipe through a first solenoid valve;

[0012] A support frame fixedly connected to the outside of the processing tank;

[0013] A purification component is arranged on the upper surface of the support frame and is used to purify the odor of impurities in the wastewater;

[0014] A circulation component is arranged on the upper surface of the support frame and is used for re-filtering the wastewater that has not been completely decolorized;

[0015] The installation component is arranged outside the purification component and is used to replace the filter plate inside the purification component.

[0016] As a further improvement of the present technical solution, the fixing assembly includes an inner plate fixedly connected to the inside of the mounting block, telescopic rods are fixedly connected to both sides of the outer wall of the inner plate, the telescopic ends of the two telescopic rods are fixedly connected to the insertion rods, the outsides of the two telescopic rods are sleeved with return springs, the two return springs are both in contact between the insertion rods and the inner plate, and guide grooves for the movement of the insertion rods are opened on both sides of the outer walls of the mounting block and the fixing frame.

[0017] As a further improvement of the present technical solution, the filter assembly includes a placement ring fixedly connected to the inside of the treatment tank, a filter net is provided inside the placement ring, a plurality of positioning rods are fixedly connected to the upper surface of the placement ring, a guide groove for the movement of the positioning rods is provided at the bottom of the filter net, and handles are symmetrically provided on the upper surface of the filter net.

[0018] As a further improvement of the technical solution, the purification component includes a purification box fixedly connected to the upper surface of the support frame. At the bottom end inside the purification box, U-shaped plates are symmetrically arranged. An activated carbon filter plate and a bamboo charcoal filter plate are respectively arranged inside the two U-shaped plates. The upper surfaces of the activated carbon filter plate and the bamboo charcoal filter plate are fixedly connected with connecting plates. The upper surfaces of the two connecting plates are fixedly connected with pull handles. The upper surface of the purification box is provided with a guide groove for the movement of the activated carbon filter plate and the bamboo charcoal filter plate. The bottom end inside the purification box is fixedly connected with a gas quality detector. The outside of the purification box is communicated with an exhaust pipe through a second electromagnetic valve. The upper surface of the support frame is fixedly connected with an air suction pump. The air inlet end of the air suction pump is communicated with the inside of the closing cover through a pipeline, and the air outlet end of the air suction pump is communicated with the inside of the purification box through a pipeline.

[0019] As a further improvement of the technical solution, the installation component includes connecting blocks symmetrically arranged at the bottom of the connecting plate. On both sides of the outer wall of the purification box, connecting frames are symmetrically arranged. Fixed plates are fixedly connected to the outside of multiple connecting frames. A fixing rod is arranged inside the fixed plate. One end of the fixing rod extends to the outside of the fixed plate and is fixedly connected with a pulling plate. A resisting plate is fixedly connected to the outside of the fixing rod. A resisting spring is sleeved on the outside of the fixing rod. The resisting spring abuts between the resisting plate and the fixed plate. Guide grooves for the movement of the fixing rod are provided on the contact surfaces of multiple fixed plates and the connecting frames. Guide grooves for the movement of the fixing rod are provided inside multiple connecting blocks.

[0020] As a further improvement of the technical solution, the circulation component includes a circulation water pump fixedly connected to the upper surface of the support frame. The water inlet end of the circulation water pump is communicated with the inside of the treatment tank through a liquid inlet pipe, and the water outlet end of the circulation water pump is communicated with the inside of the treatment tank through a liquid outlet pipe.

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

[0022] In the aquaculture wastewater decolorization device, by providing a fixed component, a filtering component, a purification component, a circulation component and an installation component, when the wastewater needs to be decolorized, the wastewater only needs to be added into the interior of the treatment tank through the water inlet pipe. At this time, the filtering component can effectively intercept and filter the impurities in the wastewater, thereby effectively decolorizing the wastewater. In the process of decolorizing the wastewater, a large amount of odor will be generated. At this time, the purification component starts to operate, and the purification component can effectively adsorb and purify the odor, thereby preventing the odor from polluting the environment and preventing the odor from affecting the health of the staff. When the wastewater is not completely decolorized, the circulation component starts to operate, and at this time the circulation component can absorb the incompletely decolorized wastewater again. The filter assembly is then transferred to the top of the filter assembly for the second time, so that the wastewater can be filtered again through the filter assembly, and the incompletely decolorized wastewater can be effectively decolorized again, effectively improving the decolorization effect of the wastewater. After the filter assembly is used for a long time, blockage and the like are inevitable. At this time, you only need to open the closing cover through the fixing assembly. When the closing cover is fully opened, it is convenient for the staff to take out the filter assembly, so that the filter assembly can be disassembled, replaced and cleaned. When the filter plate inside the purification assembly needs to be replaced, you only need to install the assembly to conveniently disassemble the filter plate inside the purification assembly, so that the staff can replace the filter plate inside the purification assembly, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after the closing cover is opened;

[0025] Figure 3 It is a cutaway three-dimensional structural schematic diagram of the installation block in the utility model;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model after the filter screen is disassembled;

[0027] Figure 5 It is a schematic diagram of the cutaway three-dimensional structure of the fixing plate in the utility model;

[0028] Figure 6 It is a schematic diagram of the cutaway three-dimensional structure of the purification box in the utility model;

[0029] Figure 7 for Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0030] Figure 8 for Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0031] Fig. 9 For Figure 6 The enlarged structural schematic diagram of area C in

[0032] The meanings of each label in the figure are as follows:

[0033] 1. Processing tank; 2. Closing cover; 3. Water inlet pipe; 4. Installation plate; 5. Installation block; 6. Fixed frame; 7. Support frame; 8. First solenoid valve; 9. Drain pipe; 10. Purification tank; 11. Suction pump; 12. Circulating water pump; 13. Liquid inlet pipe; 14. Liquid outlet pipe; 15. Filter screen; 16. Placing ring; 17. Positioning rod; 18. Connecting plate; 19. Connecting block; 20. Activated carbon filter plate; 21. Bamboo charcoal filter plate; 22. Inner plate; 23. Telescopic rod; 24. Inserting rod; 25. Return spring; 26. Connecting frame; 27. Fixed plate; 28. Fixed rod; 29. Contact plate; 30. Contact spring; 31. C-shaped plate; 32. Gas mass detector; 33. Second solenoid valve; 34. Exhaust pipe. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figure 1 - Fig. 9 As shown in

[0036] A closing cover 2, located above the processing tank 1, the closing cover 2 and the processing tank 1 are hinged through a hinge member, the outside of the closing cover 2 is fixedly connected with an installation plate 4, the bottom of the installation plate 4 is fixedly connected with an installation block 5, and the outside of the processing tank 1 is fixedly connected with a fixed frame 6;

[0037] A fixing component, arranged inside the installation block 5 and used to fix the installation block 5 and the fixed frame 6;

[0038] A filtering component, arranged inside the processing tank 1 and used to filter and decolorize the wastewater;

[0039] A water inlet pipe 3, communicated with the outside of the processing tank 1, and the bottom of the processing tank 1 is communicated with a drain pipe 9 through a first solenoid valve 8;

[0040] A support frame 7, fixedly connected to the outside of the processing tank 1;

[0041] A purification component is arranged on the upper surface of the support frame 7 and is used to purify the odor of impurities in the wastewater;

[0042] A circulation component is arranged on the upper surface of the support frame 7 and is used to filter the wastewater that has not been completely decolorized again;

[0043] The installation component is arranged outside the purification component and is used to replace the filter plate inside the purification component.

[0044] The above working principle: when it is necessary to decolorize the wastewater, the wastewater only needs to be added into the treatment tank 1 through the water inlet pipe 3. At this time, the filter component can effectively intercept and filter the impurities in the wastewater, so as to effectively decolorize the wastewater. In the process of decolorizing the wastewater, a large amount of odor will be generated. At this time, the purification component starts to run, and the purification component can effectively adsorb and purify the odor, so as to prevent the odor from polluting the environment and at the same time prevent the odor from affecting the health of the staff. When the wastewater is not completely decolorized, the circulation component starts to run. At this time, the circulation component can transfer the incompletely decolorized wastewater to the top of the filter component again, so as to be able to The wastewater is filtered again through the filter assembly, and then the wastewater that is not completely decolorized can be effectively decolorized again, which effectively improves the decolorization effect of the wastewater. After the filter assembly is used for a long time, blockage and the like are inevitable. At this time, you only need to open the closing cover 2 through the fixing assembly. When the closing cover 2 is fully opened, it is convenient for the staff to take out the filter assembly, so that the filter assembly can be disassembled, replaced and cleaned. When the filter plate inside the purification assembly needs to be replaced, the filter plate inside the purification assembly can be conveniently disassembled through the installation assembly, thereby facilitating the staff to replace the filter plate inside the purification assembly, saving time and effort.

[0045] In order to facilitate the staff to disassemble, replace and clean the filter assembly, the fixed assembly includes an inner plate 22 fixedly connected to the inside of the mounting block 5, and telescopic rods 23 are fixedly connected to the outer wall of the inner plate 22 on both sides, and the telescopic ends of the two telescopic rods 23 are fixedly connected to the plug rods 24, and the outer sides of the two telescopic rods 23 are sleeved with return springs 25, and the two return springs 25 are both in contact between the plug rods 24 and the inner plate 22. Guide grooves for the movement of the plug rods 24 are provided on both sides of the outer walls of the mounting block 5 and the fixed frame 6. When the filter assembly needs to be disassembled, it only needs to press the plug rod 24 first. At this time, the plug rod 24 will squeeze the telescopic rod 23 and the return spring 25 synchronously. 4 is out of the guide grooves on both sides of the outer wall of the fixed frame 6, the mounting block 5 can be pulled out from the inside of the fixed frame 6, and the closing cover 2 can be opened at this time, so that it is convenient for the staff to disassemble and replace the filter assembly. When the filter assembly is replaced, it is only necessary to first plug the mounting block 5 into the inside of the fixed frame 6. At this time, the mounting block 5 will drive the plug rod 24 to move synchronously. When the mounting block 5 drives the plug rod 24 to move into the guide grooves on both sides of the outer wall of the fixed frame 6, the reset spring 25 is reset, driving the plug rod 24 to move synchronously. When the plug rod 24 is plugged into the guide grooves on both sides of the outer wall of the fixed frame 6, the mounting block 5 and the fixed frame 6 can be fixed, and the closing cover 2 can be closed and fixed at this time.

[0046] Considering that when decolorizing wastewater, it is necessary to intercept and filter impurities in the wastewater, the filter assembly includes a placement ring 16 fixedly connected to the inside of the treatment tank 1, and a filter screen 15 is arranged inside the placement ring 16. A plurality of positioning rods 17 are fixedly connected to the upper surface of the placement ring 16. A guide groove for the positioning rods 17 to move is provided at the bottom of the filter screen 15. Handles are symmetrically arranged on the upper surface of the filter screen 15. When it is necessary to decolorize the wastewater, the wastewater only needs to be added to the treatment tank 1 through the water inlet pipe 3. At this time, the wastewater will fall above the filter screen 15, and the filter screen 15 can effectively intercept impurities in the wastewater. The filter 15 can be removed and filtered to facilitate cleaning and replacement by the staff. The positioning rod 17 can be used to facilitate the staff to install the filter 15 inside the placement ring 16, and can also play a certain positioning role and can improve the fixing effect between the filter 15 and the placement ring 16 to a certain extent.

[0047] In order to effectively purify the odor generated during the wastewater decolorization process, the purification component includes a purification box 10 fixedly connected to the upper surface of the support frame 7. At the bottom end inside the purification box 10, there are symmetrically arranged U-shaped plates 31. Inside the two U-shaped plates 31, there are respectively an activated carbon filter plate 20 and a bamboo charcoal filter plate 21. On the upper surfaces of the activated carbon filter plate 20 and the bamboo charcoal filter plate 21, there are fixedly connected connecting plates 18. On the upper surfaces of the two connecting plates 18, there are fixedly connected pull handles. On the upper surface of the purification box 10, there are provided guiding grooves for the movement of the activated carbon filter plate 20 and the bamboo charcoal filter plate 21. At the bottom end inside the purification box 10, there is fixedly connected a gas quality detector 32. The outside of the purification box 10 is connected to an exhaust pipe 34 through a second electromagnetic valve 33. On the upper surface of the support frame 7, there is fixedly connected an air suction pump 11. The intake end of the air suction pump 11 is connected to the inside of the closing cover 2 through a pipeline, and the outlet end of the air suction pump 11 is connected to the inside of the purification box 10 through a pipeline. During the process of wastewater decolorization treatment, a large amount of odor is generated. At this time, the air suction pump 11 starts to operate. The air suction pump 11 can transmit the odor to the inside of the purification box 10 through the pipeline. When the odor is transmitted to the inside of the purification box 10, both the activated carbon filter plate 20 and the bamboo charcoal filter plate 21 can effectively purify the odor. After the odor is purified, the gas quality detector 32 will detect the quality of the purified odor. When the detection result reaches the emission standard, the gas quality detector 32 will transmit a signal to the controller, and the controller will then control the second electromagnetic valve 33 to open. At this time, the purified gas will be discharged through the exhaust pipe 34.

[0048] In order to facilitate the disassembly and replacement of the activated carbon filter plate 20 and the bamboo charcoal filter plate 21 by the staff, the installation component includes connection blocks 19 symmetrically arranged at the bottom of the connection plate 18. On both sides of the outer wall of the purification tank 10, connection frames 26 are symmetrically provided. On the outside of multiple connection frames 26, fixing plates 27 are fixedly connected. Inside the fixing plate 27, there is a fixing rod 28. One end of the fixing rod 28 extends outside the fixing plate 27 and is fixedly connected with a pulling plate. On the outside of the fixing rod 28, a resisting plate 29 is fixedly connected. A resisting spring 30 is sleeved on the outside of the fixing rod 28, and the resisting spring 30 resists between the resisting plate 29 and the fixing plate 27. On the contact surface between multiple fixing plates 27 and the connection frames 26, guiding grooves for the movement of the fixing rod 28 are provided. Inside multiple connection blocks 19, guiding grooves for the movement of the fixing rod 28 are also provided. When it is necessary to disassemble and replace the activated carbon filter plate 20 and the bamboo charcoal filter plate 21, just first pull the pulling plate. At this time, the pulling plate will drive the fixing rod 28 to move synchronously. The fixing rod 28 will then drive the resisting plate 29 to move synchronously. During the movement of the resisting plate 29, the resisting spring 30 will be compressed. When the fixing rod 28 disengages from the guiding groove inside the connection block 19, pull the pull handle. At this time, the pull handle will drive the connection plate 18 to move synchronously. The connection plate 18 will then drive the connection block 19, the activated carbon filter plate 20, and the bamboo charcoal filter plate 21 to move synchronously. When the activated carbon filter plate 20 and the bamboo charcoal filter plate 21 are completely separated from the inside of the purification tank 10, the activated carbon filter plate 20 and the bamboo charcoal filter plate 21 can be disassembled. At this time, insert the new activated carbon filter plate 20 and the bamboo charcoal filter plate 21 into the inside of the U-shaped plate 31. When the new activated carbon filter plate 20 and the bamboo charcoal filter plate 21 are completely inserted into the inside of the U-shaped plate 31, the connection plate 18 will also drive the connection block 19 to be inserted into the inside of the connection frame 26 synchronously. At this time, release the pulling plate, and the resisting spring 30 resets, driving the resisting plate 29 and the fixing rod 28 to move synchronously. When the fixing rod 28 is inserted into the guiding groove inside the connection block 19, the connection between the connection block 19 and the connection frame 26 can be fixed. At this time, the activated carbon filter plate 20 and the bamboo charcoal filter plate 21 can be replaced.

[0049] In addition, in order to effectively perform secondary filtration and decolorization treatment on the wastewater that has not been completely decolorized, the circulation component includes a circulation water pump 12 fixedly connected to the upper surface of the support frame 7. The water inlet end of the circulation water pump 12 is connected to the inside of the treatment tank 1 through a liquid inlet pipe 13, and the water outlet end of the circulation water pump 12 is connected to the inside of the treatment tank 1 through a liquid outlet pipe 14. When it is necessary to perform secondary filtration and decolorization treatment on the wastewater that has not been completely decolorized, the circulation water pump 12 starts to operate. At this time, the circulation water pump 12 can transmit the wastewater that has not been completely decolorized above the filter net 15 again, so that the wastewater can be filtered and decolorized again through the filter net 15. This process is repeated until the wastewater is completely decolorized, effectively improving the decolorization effect of the wastewater.

[0050] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. Aquaculture wastewater decolorization device, comprising a treatment tank (1), characterized in that: Also includes: A closing cover (2) is located above the processing tank (1), the closing cover (2) and the processing tank (1) are hingedly connected via a hinge, the outside of the closing cover (2) is fixedly connected to a mounting plate (4), the bottom of the mounting plate (4) is fixedly connected to a mounting block (5), and the outside of the processing tank (1) is fixedly connected to a fixing frame (6); A fixing assembly, arranged inside the mounting block (5) and used to fix the mounting block (5) and the fixing frame (6); A filtering assembly is arranged inside the treatment tank (1) and is used to filter and decolorize the wastewater; A water inlet pipe (3) is connected to the outside of the treatment tank (1); the bottom of the treatment tank (1) is connected to a liquid discharge pipe (9) via a first solenoid valve (8); A support frame (7) fixedly connected to the outside of the processing tank (1); A purification component is arranged on the upper surface of the support frame (7) and is used to purify the odor of impurities in the wastewater; A circulation component is arranged on the upper surface of the support frame (7) and is used for re-filtering the wastewater that has not been completely decolorized; The installation component is arranged outside the purification component and is used to replace the filter plate inside the purification component.

2. The aquaculture wastewater decolorization device according to claim 1, characterized in that: The fixing assembly comprises an inner plate (22) fixedly connected to the inside of the mounting block (5), telescopic rods (23) are fixedly connected to both sides of the outer wall of the inner plate (22), the telescopic ends of the two telescopic rods (23) are fixedly connected to the insertion rods (24), the outsides of the two telescopic rods (23) are sleeved with return springs (25), the two return springs (25) are in contact between the insertion rods (24) and the inner plate (22), and guide grooves for the movement of the insertion rods (24) are provided on both sides of the outer walls of the mounting block (5) and the fixing frame (6).

3. The aquaculture wastewater decolorization device according to claim 1, characterized in that: The filter assembly comprises a placement ring (16) fixedly connected to the inside of the treatment tank (1), a filter screen (15) is arranged inside the placement ring (16), a plurality of positioning rods (17) are fixedly connected to the upper surface of the placement ring (16), a guide groove for the positioning rods (17) to move is provided at the bottom of the filter screen (15), and handles are symmetrically arranged on the upper surface of the filter screen (15).

4. The aquaculture wastewater decolorization device according to claim 1, characterized in that: The purification component includes a purification box (10) fixedly connected to the upper surface of the support frame (7). At the bottom end inside the purification box (10), U-shaped plates (31) are symmetrically arranged. An activated carbon filter plate (20) and a bamboo charcoal filter plate (21) are respectively arranged inside the two U-shaped plates (31). The upper surfaces of the activated carbon filter plate (20) and the bamboo charcoal filter plate (21) are both fixedly connected with connecting plates (18). Pull handles are fixedly connected to the upper surfaces of the two connecting plates (18). Guide grooves for the movement of the activated carbon filter plate (20) and the bamboo charcoal filter plate (21) are formed on the upper surface of the purification box (10). A gas quality detector (32) is fixedly connected to the bottom end inside the purification box (10). The outside of the purification box (10) is communicated with an exhaust pipe (34) through a second solenoid valve (33). An air suction pump (11) is fixedly connected to the upper surface of the support frame (7). The intake end of the air suction pump (11) is communicated with the inside of the closing cover (2) through a pipeline, and the outlet end of the air suction pump (11) is communicated with the inside of the purification box (10) through a pipeline.

5. The aquaculture wastewater decolorization device according to claim 4, characterized in that: The installation component includes connecting blocks (19) symmetrically arranged at the bottom of the connecting plate (18). Connecting frames (26) are symmetrically arranged on both sides of the outer wall of the purification box (10). Fixing plates (27) are fixedly connected to the outside of the plurality of connecting frames (26). A fixing rod (28) is arranged inside the fixing plate (27). One end of the fixing rod (28) extends to the outside of the fixing plate (27) and is fixedly connected with a pulling plate. A resisting plate (29) is fixedly connected to the outside of the fixing rod (28). A resisting spring (30) is sleeved on the outside of the fixing rod (28). The resisting spring (30) abuts between the resisting plate (29) and the fixing plate (27). Guide grooves for the movement of the fixing rod (28) are formed on the contact surfaces of the plurality of fixing plates (27) and the connecting frames (26). Guide grooves for the movement of the fixing rod (28) are formed inside the plurality of connecting blocks (19).

6. The aquaculture wastewater decolorization device according to claim 1, characterized in that: The circulation component includes a circulation water pump (12) fixedly connected to the upper surface of the support frame (7). The water inlet end of the circulation water pump (12) is communicated with the inside of the treatment tank (1) through a liquid inlet pipe (13), and the water outlet end of the circulation water pump (12) is communicated with the inside of the treatment tank (1) through a liquid outlet pipe (14).

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