Intelligent aquaculture wastewater treatment device

Abstract

This invention discloses an intelligent wastewater treatment device for aquaculture, comprising a vertical cylindrical treatment tank that continuously transports wastewater. When the continuously flowing reagent and wastewater enter the mixing structure through the bottom center, they are separated and flow into a mixing channel. The change in the channel's cross-section causes a change in flow velocity, creating turbulence. The guiding structure contains a movable adjustable component; adjusting this component alters the opening range of the mixing channel. This invention, through comprehensive composite disturbance, dynamic channel adjustment, and slow-flow cavity-assisted diffusion, completely solves the problem of uneven mixing in traditional equipment, reduces reagent loss, and improves wastewater purification. Treatment is more continuous, efficiency is significantly improved, and the continuous influent-mixing-drainage process design eliminates equipment idle time. The integrated power system ensures coordinated operation of all stages, meeting the large-scale wastewater treatment needs of large-scale aquaculture.

Description

Technical Field

[0001] This invention relates to the field of aquaculture wastewater treatment technology, and in particular to an intelligent aquaculture wastewater treatment device. Background Technology

[0002] With the large-scale and intensive development of aquaculture, the amount of wastewater discharged during the aquaculture process is increasing daily. This wastewater not only contains a large amount of uneaten feed and aquatic organism excrement, but also accumulates nitrogen, phosphorus, organic matter, and various suspended particulate matter. Direct discharge can easily lead to ecological problems such as eutrophication and water quality deterioration in receiving water bodies, and also cause serious waste of water resources. Therefore, efficient treatment and recycling of aquaculture wastewater has become one of the core requirements for the sustainable development of the industry.

[0003] Currently, the treatment of aquaculture wastewater typically relies on a combination of processes, including physical sedimentation, chemical purification, and biodegradation. Among these, chemical purification is widely used for removing pollutants from water bodies due to its ease of operation and rapid reaction speed. Thorough mixing of the chemical agents with the wastewater is crucial for ensuring effective purification, which places stringent requirements on the mixing performance of the treatment equipment.

[0004] In existing technologies, aquaculture wastewater treatment equipment mostly adopts a batch mixing treatment method. This involves first injecting a fixed quantity of wastewater into the treatment tank, then adding chemical agents, and mixing them using a stirring device. After the mixing reaction is complete, the treated wastewater is discharged, and only then can new wastewater be injected for the next round of treatment. This method has significant drawbacks: Firstly, the stirring devices are mostly fixed paddle-type structures with a fixed stirring range and intensity, making it difficult to flexibly adjust according to changes in wastewater quality, quantity, and agent type. This easily leads to uneven mixing, resulting in low agent utilization and affecting wastewater treatment effectiveness. Secondly, batch treatment requires a "water inlet-mixing-drainage" cycle. During the drainage and re-inlet stages, the equipment is idle, preventing continuous wastewater transport and treatment, severely limiting treatment efficiency, and failing to meet the continuous treatment needs of large-scale aquaculture wastewater.

[0005] Furthermore, some improved equipment attempts to optimize the mixing effect by adding structures such as guide vanes, but these still fail to overcome the limitations of batch processing. Moreover, the fixed guide structure makes it impossible to adjust the mixing flow pattern according to actual treatment needs, resulting in poor adaptability to wastewater with varying levels of pollution. Therefore, developing a wastewater treatment device capable of efficient mixing of wastewater and chemicals and continuous treatment has become an urgent technical problem to be solved in this field. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned technical problems by proposing an intelligent treatment device for aquaculture wastewater.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A smart wastewater treatment device for aquaculture includes a treatment tank with a vertical cylindrical structure that continuously transports wastewater, and the treatment tank is connected to a conveying mechanism that delivers chemicals into it.

[0009] It also includes a chemical mixing structure, which is driven by a drive structure to reciprocate along the axial direction of the treatment tank; the chemical mixing structure is provided with radially distributed guide structures, and two adjacent guide structures form a fan-shaped mixing channel, the cross-section of which gradually expands from the inside to the outside.

[0010] When the continuously flowing reagent and wastewater enter the interior of the reagent-water mixing structure through the bottom center, the reagent and wastewater will be diverted into the mixing channel. Due to the change in the cross-section of the mixing channel, the flow velocity changes, forming turbulence. The guide structure is equipped with a movable adjustment component. By adjusting this movable adjustment component, the opening range of the outer side of the mixing channel can be changed, thereby changing the turbulence intensity and diffusion range, so as to achieve uniform mixing of the reagent and continuous discharge outside the treatment tank.

[0011] Preferably, the upper end of the processing tank is provided with a top cover, the drive structure is disposed on the top cover and the power end of the drive structure is connected to a drive shaft, and the lower end of the drive shaft is connected to a power shaft.

[0012] Preferably, the drug mixing structure consists of at least two sets distributed vertically, with a slow-flow cavity formed between adjacent sets of drug mixing structures.

[0013] Preferably, the drug mixing structure includes an annular plate that can be connected to the power shaft but is not sealed. The annular plate is axially and movably sealed to the inner wall of the treatment tank. Above the annular plate is a movable plate that can be connected to the power shaft. The flow guiding structure is arranged on the annular plate and the movable plate. The outer diameter of the annular plate is larger than the outer diameter of the movable plate.

[0014] Preferably, the movable adjustable component includes a diverter and a guide. The diverter is located near the center of the annular plate and on the diameter of the circumference of the annular plate. The diverter is located close to the guide. The diverter can extend and retract vertically. While the guide can extend and retract vertically, it can swing in a fan shape away from the diverter, thereby changing the opening range of the mixing channel.

[0015] Preferably, the diversion section includes a U-shaped plate fixed to the upper end of the annular plate, and a diversion plate is slidably connected inside the U-shaped plate. The upper end of the diversion plate is fixedly connected to the bottom of the movable plate.

[0016] Preferably, the flow guiding part includes a J-shaped plate rotatably disposed on the upper end of the annular plate, a flow guiding plate slidably connected inside the J-shaped plate, a through groove extending through one end of the flow guiding plate, the flow guiding plate being rotatably connected to the bottom of the movable plate, and a spiral rod being fitted inside the through groove, the spiral rod being located inside the J-shaped plate and fixed to the annular plate.

[0017] Preferably, a first reciprocating screw is rotatably mounted on the power shaft. The first reciprocating screw coaxially passes through the movable plate and is configured to cooperate with it. Two support rods are fixed on the first reciprocating screw, and the support rods are fixedly connected to the inner wall of the processing tank.

[0018] Preferably, the conveying mechanism is connected to the power shaft. The conveying mechanism includes a piston cylinder fixedly installed at the bottom of the processing tank. A movable piston is slidably connected inside the piston cylinder. A second reciprocating screw is rotatably connected to the upper end of the movable piston. The second reciprocating screw is coaxially fixedly connected to the power shaft. A limit plate is installed inside the piston cylinder. The second reciprocating screw passes through the limit plate and is connected to it. The outer wall of the piston cylinder is provided with multiple arc-shaped drain pipes. A first one-way valve is installed on the arc-shaped drain pipes.

[0019] Preferably, a medicine storage tank is provided below the processing tank, and the piston cylinder is connected to the medicine storage tank through a medicine inlet pipe, on which a second one-way valve is installed.

[0020] Preferably, the center of the annular plate is a liquid inlet, and multiple connecting rods are fixed to the inner wall of the liquid inlet. The connecting rods are fixedly connected to the power shaft, so that the upward-flowing medicine and wastewater can enter the medicine-water mixing structure through the liquid inlet.

[0021] Compared with the prior art, the beneficial effects of this invention are as follows:

[0022] 1. By using movable adjustable components (U-shaped plate and flow divider in the flow divider section, J-shaped plate and flow guide in the flow guide section), combined with the reverse spiral design of the screw rod, the dynamic change of the opening range on the outside of the mixing channel is achieved (the openings of adjacent channels alternately increase or decrease), avoiding the problem of uneven mixing caused by the "one-size-fits-all" mixing of traditional fixed blade agitators, and greatly improving the compatibility of reagents and wastewater.

[0023] 2. The combined effects of the rotational motion of the chemical mixing structure (circumferential disturbance), the reciprocating movement of the movable plate (axial disturbance), and the velocity difference caused by the difference in the flow channel openings (local disturbance) upgrade the mixing process from "turbulence within a single flow channel" to "complex disturbance across the entire domain." Simultaneously, the "narrow inner, wide outer" flow channel cross-section design further enhances turbulence through abrupt velocity changes, effectively solving the problem of insufficient mixing in traditional stirring methods.

[0024] 3. The slow-flow cavity between the upper and lower drug mixing structures reduces the flow rate by expanding the space, so that the mixture changes from "turbulent impact" to "static diffusion", providing sufficient molecular diffusion time for components with different densities and viscosities; at the same time, the gravity difference is used to form natural convection, which is equivalent to "pre-stirring", ensuring that the drug concentration is more uniform before entering the next mixing structure, avoiding the problem of uneven concentration in some areas caused by insufficient mixing time in traditional equipment.

[0025] 4. The treatment tank adopts a vertical cylindrical structure. Wastewater is continuously input through the bottom inlet pipe, and after multi-stage mixing, it is continuously discharged from the top outlet pipe. There is no need to go through the batch cycle of "inlet-mixing-drainage", which completely eliminates the idle problem of traditional equipment in the drainage and re-inlet stages, and realizes the continuous transportation and treatment of wastewater.

[0026] 5. The arc-shaped drain pipe of the conveying mechanism adopts a flexible hose design. When the agent is discharged, it will swing naturally due to the resistance of the wastewater and the impact of the water flow, realizing irregular and wide-range distribution of the agent and forming a preliminary premix with the wastewater. At the same time, the agent delivery volume and the adjustment frequency of the mixing channel can be indirectly controlled by adjusting the drive speed, so that the equipment can adapt to different pollution levels (high turbidity, low turbidity) and different types (containing nitrogen, phosphorus, residual feed, etc.) of aquaculture wastewater, overcoming the shortcomings of poor adaptability of traditional fixed guide structures.

[0027] In summary, this invention completely solves the problem of uneven mixing in traditional equipment by using global composite disturbance, dynamic flow channel adjustment, and slow-flow cavity-assisted diffusion, thereby reducing reagent consumption and improving wastewater purification effect. The treatment is more continuous and the efficiency is greatly improved. The continuous water inlet-mixing-drainage process design eliminates equipment idleness, and the integrated power system ensures coordinated operation of all links, meeting the large-scale wastewater treatment needs of large-scale breeding. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an intelligent wastewater treatment device for aquaculture proposed in this invention;

[0029] Figure 2 This is a front view of an intelligent wastewater treatment device for aquaculture proposed in this invention;

[0030] Figure 3 This is a front view of an intelligent wastewater treatment device for aquaculture proposed in this invention;

[0031] Figure 4 This is a schematic diagram of the internal structure of the treatment tank in an intelligent aquaculture wastewater treatment device proposed in this invention.

[0032] Figure 5 This is a schematic diagram of the medicinal water mixing structure in an intelligent aquaculture wastewater treatment device proposed in this invention;

[0033] Figure 6 This is a schematic diagram of the flow guiding structure in an intelligent aquaculture wastewater treatment device proposed in this invention.

[0034] Figure 7 This is a split view of the flow guiding structure in an intelligent aquaculture wastewater treatment device proposed in this invention;

[0035] Figure 8 This is a top view of the flow guiding structure in an intelligent aquaculture wastewater treatment device proposed in this invention;

[0036] Figure 9 This is a schematic diagram of the flow guiding structure after rotation in an intelligent aquaculture wastewater treatment device proposed in this invention.

[0037] Figure 10 This is a schematic diagram of the annular plate in an intelligent aquaculture wastewater treatment device proposed in this invention.

[0038] Figure 11 This is a schematic diagram of the conveying mechanism in an intelligent aquaculture wastewater treatment device proposed in this invention.

[0039] In the diagram: 100, processing tank; 110, inlet pipe; 120, outlet pipe; 130, top cover; 131, drive structure; 1311, drive shaft; 1312, power shaft; 200, bracket; 300, medicine storage tank; 400, medicine mixing structure; 410, annular plate; 411, liquid inlet; 412, connecting rod; 420, flow guiding structure; 421, U-shaped plate; 4211, flow divider plate; 422, J-shaped plate; 4221 4222, Guide plate; 423, Through groove; 430, Spiral rod; 440, Movable plate; 441, First reciprocating screw assembly; 450, Support rod; 500, Mixing channel; 600, Slow flow chamber; 610, Conveying mechanism; 611, Inlet tube assembly; 620, Second check valve; 630, Piston cylinder; 640, Limiting plate; 650, Second reciprocating screw; 660, Moving piston; 670, Arc-shaped drain pipe; 680, First check valve. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] Reference Figures 1-11 A smart wastewater treatment device for aquaculture includes a treatment tank 100 with a vertical cylindrical structure that continuously transports wastewater, and the treatment tank 100 is connected to a conveying mechanism 600 that delivers chemicals into it.

[0042] It also includes a chemical mixing structure 400, which is driven by a drive structure 131 to reciprocate along the axial direction of the treatment tank 100; the chemical mixing structure 400 is provided with radially distributed guide structures 420, and two adjacent guide structures 420 form a fan-shaped mixing channel 450, the cross-section of which gradually expands from the inside to the outside.

[0043] When the continuously flowing reagent and wastewater enter the interior of the reagent mixing structure 400 through the bottom center, the reagent and wastewater will be diverted into the mixing channel 450. Due to the change in the cross-section of the mixing channel 450, the flow velocity changes, forming turbulence. The guide structure 420 is equipped with a movable adjustment component. By adjusting this movable adjustment component, the opening range of the outside of the mixing channel 450 can be changed, thereby changing the turbulence intensity and diffusion range, so as to achieve uniform mixing of the reagent and continuous discharge of the reagent to the outside of the treatment tank 100.

[0044] like Figures 1-3 As shown, the bottom of the processing tank 100 is supported by multiple brackets 200. Each bracket 200 has a flat surface that supports the bottom of the processing tank 100. The brackets 200 are welded to the processing tank 100 to ensure the stability of the support for the processing tank 100.

[0045] like Figures 1-3 As shown, the treatment tank 100 is equipped with an inlet pipe 110 and an outlet pipe 120. The inlet pipe 110 is located below the lowest chemical mixing structure 400 and is opposite to the conveying mechanism 600 for conveying chemicals. The purpose is to initially mix the wastewater and chemical solution entering the treatment tank 100. The outlet pipe 120 is connected to a subsequent treatment unit, such as a sedimentation tank. The outlet pipe 120 is located above the uppermost chemical mixing structure 400 to ensure that the uniformly mixed chemical solution is discharged.

[0046] like Figures 1-4 As shown, the upper end of the treatment tank 100 is provided with a top cover 130, which is connected to the treatment tank 100 by flange bolts and sealed with a sealing ring. The drive structure 131 is provided on the top cover 130, and the power end of the drive structure 131 is connected to a drive shaft 1311. The lower end of the drive shaft 1311 is connected to a power shaft 1312, and the drive shaft 1311 and the power shaft 1312 are connected by flange bolts. The drive structure 131 consists of a reducer and a motor, which can realize the rotation of the drive shaft 1311 and the power shaft 1312 through transmission. The operating frequency of the equipment can be controlled by the speed of the motor. Depending on the different dissolution rates of the drugs in the water, there will be different mixing times. Therefore, only the speed of the motor needs to be adjusted to more intelligently adapt to the treatment of wastewater.

[0047] like Figure 1 , Figure 4As shown, there are at least two sets of drug mixing structures 400, distributed vertically, with a slow-flow cavity 500 formed between adjacent sets of drug mixing structures 400. When the drug mixed by the lower drug mixing structure 400 flows to the slow-flow cavity 500, the mixture output from the lower drug mixing structure 400 may form a "laminar flow state" due to the high flow velocity, meaning that different drug components flow along fixed streamlines and are not completely intertwined. The slow-flow cavity 500 reduces the flow velocity by expanding the flow space, changing the mixture from "turbulent impact mixing" to "static diffusion mixing," allowing drug components with different densities and viscosities sufficient time to further fuse through molecular diffusion, avoiding localized uneven concentrations caused by insufficient mixing time.

[0048] Secondly, as the mixture flows upward in the slow-flow chamber, a slight convection circulation occurs due to the difference in gravity, causing the denser components to sink and the less dense components to float. This natural convection is equivalent to "pre-stirring" the mixture, ensuring that it has a more uniform basic concentration before entering the upper drug mixing structure 400, which greatly improves the efficiency of secondary mixing and the final uniformity. The mixture flows upward in the slow-flow chamber 500 and then passes through the drug mixing structure 400 again for mixing, ensuring the quality of the drug mixing.

[0049] Reference Figure 1 , Figure 4 , Figure 10 The drug mixing structure 400 includes an annular plate 410 that can be connected to the power shaft 1312 without sealing. The center of the annular plate 410 is a liquid inlet 411. Multiple connecting rods 412 are fixed on the inner wall of the liquid inlet 411. The connecting rods 412 are fixedly connected to the power shaft 1312. The upward-flowing drug and wastewater can enter the drug mixing structure 400 through the liquid inlet 411.

[0050] The annular plate 410 is axially and movably sealed to the inner wall of the treatment tank 100. That is, the annular plate 410 is driven to rotate by the power shaft 1312 while fixed on a horizontal plane. This can seal the treatment tank 100, so that the medicine can only enter the medicine mixing structure 400 through the inlet 411. Above the annular plate 410, there is a movable plate 430 that can be connected to the power shaft 1312. The flow guiding structure 420 is set on the annular plate 410 and the movable plate 430. The outer diameter of the annular plate 410 is larger than the outer diameter of the movable plate 430. Thus, there is a distance between the movable plate 430 and the treatment tank 100, which can discharge the mixed medicine and allow it to flow into the slow flow chamber 500.

[0051] Reference Figure 6 , Figure 7 , Figure 8 , Figure 9The movable adjustable component includes a flow divider and a flow guide. The flow divider is located near the center of the annular plate 410 and is situated on the diameter of the circumference of the annular plate 410. The flow divider is positioned close to the flow guide. The flow divider can extend and retract vertically in the vertical direction. While the flow guide can extend and retract vertically in the vertical direction, it can swing in a fan shape away from the flow divider, thereby changing the opening range of the outer side of the mixing channel 450.

[0052] Further explanation, such as Figure 6 , Figure 7 As shown, the diversion section includes a U-shaped plate 421 fixed to the upper end of the annular plate 410. A diversion plate 4211 is slidably connected inside the U-shaped plate 421. A guide groove is provided on the inner wall of the U-shaped plate 421, and a guide block is provided in the guide groove. The guide block is fixedly connected to the diversion plate 4211, thus ensuring that the two slide stably and will not separate. The upper end of the diversion plate 4211 is fixedly connected to the bottom of the movable plate 430, so that the U-shaped plate 421 and the diversion plate 4211 can move relative to each other, so that the annular plate 410 and the movable plate 430 can move relative to each other.

[0053] Further explanation, such as Figure 6 , Figure 7 As shown, the flow guiding part includes a J-shaped plate 422 rotatably mounted on the upper end of the annular plate 410. A flow guiding plate 4221 is slidably connected inside the J-shaped plate 422 to ensure that the two can rotate synchronously. A through groove 4222 is provided vertically through one end of the flow guiding plate 4221. The flow guiding plate 4221 is rotatably connected to the bottom of the movable plate 430, and a spiral rod 423 is fitted inside the through groove 4222. That is, during the up and down movement of the flow guiding plate 4221, the flow guiding plate 4221 can rotate due to the limiting of the spiral rod 423. The spiral rod 423 is located inside the J-shaped plate 422 and fixed on the annular plate 410.

[0054] Among them, the axis of rotation of the J-shaped plate 422 and the guide plate 4221 coincides with the axis of the screw rod 423, and the helical directions of two adjacent screw rods 423 are opposite.

[0055] like Figure 5 A first reciprocating screw 440 is rotatably mounted on the power shaft 1312. The first reciprocating screw 440 is tubular, and the power shaft 1312 passes through the middle of the first reciprocating screw 440 and is rotatably mounted with it via a bearing. The first reciprocating screw 440 coaxially passes through the movable plate 430 and is configured to cooperate with it. Correspondingly, the movable plate 430 has a through hole, and the through hole has a protrusion that cooperates with the first reciprocating screw 440. Thus, when the movable plate 430 rotates, it can move up and down on the first reciprocating screw 440. Two support rods 441 are fixed on the first reciprocating screw 440, and the support rods 441 are fixedly connected to the inner wall of the processing tank 100.

[0056] like Figure 1 , Figure 4 , Figure 11 The conveying mechanism 600 is connected to the power shaft 1312. The conveying mechanism 600 includes a piston cylinder 620 fixedly installed at the bottom of the processing tank 100. A movable piston 650 is slidably connected inside the piston cylinder 620. A second reciprocating screw 640 is rotatably connected to the upper end of the movable piston 650. The second reciprocating screw 640 is coaxially fixedly connected to the power shaft 1312. A limit plate 630 is installed inside the piston cylinder 620. The second reciprocating screw 640 passes through the limit plate 630 and is connected to it. A through hole is passed through the limit plate 630. A protrusion that cooperates with the second reciprocating screw 640 is fixed in the corresponding through hole.

[0057] like Figure 11 The outer wall of the piston cylinder 620 is provided with multiple arc-shaped drain pipes 660. The arc-shaped drain pipes 660 are flexible tubes, and a first one-way valve 670 is installed on the arc-shaped drain pipes 660. The first one-way valve 670 only allows the agent in the piston cylinder 620 to be discharged through the arc-shaped drain pipes 660. Since the arc-shaped drain pipes 660 are flexible tubes, the agent will be resisted by the wastewater after being discharged through the arc-shaped drain pipes 660, causing the arc-shaped drain pipes 660 and the first one-way valve 670 to swing, resulting in irregular discharge of the agent. In conjunction with the wastewater entering through the water inlet pipe 110, the flow of wastewater impacts the arc-shaped drain pipes 660 and the first one-way valve 670, further causing the agent to be discharged irregularly, thus mixing with the wastewater.

[0058] like Figure 1 Below the treatment tank 100 is a medicine storage tank 300. The piston cylinder 620 is connected to the medicine storage tank 300 through the medicine inlet pipe 610. A second one-way valve 611 is installed on the medicine inlet pipe 610. The second one-way valve 611 only allows the medicine in the medicine storage tank 300 to enter the piston cylinder 620 through the medicine inlet pipe 610.

[0059] The specific steps for treating aquaculture wastewater are as follows;

[0060] After the aquaculture wastewater is filtered, the wastewater continuously enters the treatment tank 100 through the inlet pipe 110. The wastewater flows upward and mixes with the agent. After being treated, the wastewater is discharged through the outlet pipe 120.

[0061] Specifically, the drive structure 131 drives the drive shaft 1311 and the power shaft 1312 to rotate. The rotation of the power shaft 1312 drives the second reciprocating screw 640 to rotate. The rotation of the second reciprocating screw 640 moves up and down on the limit plate 630, thereby driving the moving piston 650 to move up and down.

[0062] When the moving piston 650 slides upward, a negative pressure is created inside the piston cylinder 620, and the medicine in the storage tank 300 enters the piston cylinder 620 through the inlet pipe 610. When the moving piston 650 slides downward, the medicine inside the piston cylinder 620 is pressurized and discharged through multiple arc-shaped drain pipes 660 provided on the outer wall of the piston cylinder 620. The arc-shaped drain pipes 660 are flexible and equipped with a first one-way valve 670. The first one-way valve 670 only allows the medicine to be discharged from the piston cylinder 620. After the medicine is discharged, it is resisted by the wastewater, causing the arc-shaped drain pipes 660 and the first one-way valve 670 to swing. At the same time, the flow of wastewater entering through the inlet pipe 110 impacts the arc-shaped drain pipes 660 and the first one-way valve 670, causing the medicine to be discharged irregularly and initially mixed with the wastewater.

[0063] The reagent, initially mixed with the wastewater, flows upward and enters the reagent-water mixing structure through the inlet 411. Due to the obstruction of the movable plate 430, the reagent and wastewater enter multiple mixing channels 450. As the cross-section of the mixing channel 450 gradually expands from the inside to the outside, the reagent and wastewater are diverted into the mixing channel 450 after entering the reagent-water mixing structure 400. The change in the cross-section of the mixing channel 450 leads to a change in flow velocity, forming turbulence, which allows the reagent and wastewater to be fully mixed.

[0064] At the same time, when the power shaft 1312 rotates, it drives the connecting rod 412 and the annular plate 410 to rotate. The annular plate 410 drives the guide structure 420 and the movable plate 430 to rotate. After the mixed agent and wastewater are discharged in the mixing channel 450, the drainage position will always change, thereby further ensuring the mixing effect.

[0065] Meanwhile, the rotating movable plate 430 moves up and down on the first reciprocating screw 440. When the movable plate 430 moves upward, the guide plate 4221 moves relative to the U-shaped plate 421. At this time, the distance between the movable plate 430 and the annular plate 410 increases, and the height of the mixing channel 450 increases. Simultaneously, the guide plate 4221 moves upward, cooperating with the screw 423 to cause the guide plate 4221 and the J-shaped plate 422 to rotate. Figure 7 As shown, the rotation is clockwise; since the spiral directions of the two adjacent spiral rods 423 are opposite, the adjacent guide plates 4221 and J-shaped plates 422 rotate counterclockwise; that is, the opening size of the adjacent mixing channels 450 is one that increases and one that decreases.

[0066] As mentioned above, when the movable plate 430 moves downward, the distance between the guide plate 4221 and the U-shaped plate 421 is compressed, and the height of the mixing channel 450 decreases. Similarly, the opening size of adjacent mixing channels 450 increases and decreases. This differentiated opening design allows the liquid discharged from different mixing channels 450 to form a flow velocity difference, thereby creating a secondary disturbance outside the mixing channel 450, breaking the laminar flow tendency under a single flow velocity, and enhancing the overall mixing effect.

[0067] Inside the mixing channel 450: The cross-sectional design of the mixing channel 450, which is narrow on the inside and wide on the outside, can generate basic turbulence through changes in flow velocity;

[0068] The circumferential disturbance of the rotating drainage, the local velocity difference disturbance caused by the alternating openings of the channel, and the axial disturbance caused by the lifting and lowering of the movable plate are superimposed, which upgrades the chemical solution from "turbulent flow in a single channel" to "composite disturbance in the whole area", greatly improving the molecular diffusion efficiency of the chemical and wastewater, and avoiding chemical waste or uneven treatment effect caused by insufficient mixing.

[0069] At the same time, it also increases the flow path of wastewater and chemicals, further increasing the mixing time.

[0070] After mixing, the wastewater and chemicals flow upward into the slow flow chamber 500. The slow flow chamber 500 reduces the flow rate by expanding the flow space, so that the mixture changes from "turbulent impact mixing" to "static diffusion mixing". This allows chemical components with different densities and viscosities to have sufficient time to further fuse through molecular diffusion, avoiding localized uneven concentrations caused by insufficient mixing time.

[0071] Next, the agent and wastewater are further mixed through the chemical mixing structure 400 as described above. The mixed chemical solution is discharged through the outlet pipe 120 and then transported to the sedimentation tank for sedimentation.

[0072] As mentioned above, this avoids the problem that existing technologies cannot achieve continuous wastewater transport and treatment, which severely limits treatment efficiency.

[0073] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An intelligent wastewater treatment device for aquaculture, comprising a vertical cylindrical treatment tank (100) that continuously transports wastewater from bottom to top, characterized in that, The processing tank (100) is connected to a delivery mechanism (600) for delivering the agent into it. It also includes a chemical mixing structure (400), which is driven by a driving structure (131) to reciprocate along the axial direction of the treatment tank (100) within the treatment tank (100); the chemical mixing structure (400) is provided with radially distributed guide structures (420), and two adjacent guide structures (420) form a fan-shaped mixing channel (450), the cross-section of which gradually expands from the inside to the outside; When the continuously flowing reagent and wastewater enter the interior of the reagent mixing structure (400) through the bottom center, the reagent and wastewater will be diverted into the mixing channel (450). Due to the change in the cross-section of the mixing channel (450), the flow velocity changes and turbulence is formed. The guide structure (420) is equipped with a movable adjustment component. By adjusting the movable adjustment component, the opening range of the mixing channel (450) can be changed, thereby changing the turbulence intensity and diffusion range, so as to achieve uniform mixing of the reagent and continuous discharge from the treatment tank (100). The upper end of the treatment tank (100) is provided with a top cover (130), the drive structure (131) is provided on the top cover (130) and the power end of the drive structure (131) is connected to a drive shaft (1311), and the lower end of the drive shaft (1311) is connected to a power shaft (1312); the medicine mixing structure (400) includes an annular plate (410) that can be connected to the power shaft (1312) but not sealed, the annular plate (410) and the inner wall of the treatment tank (100) are axially movably sealed, and a movable plate (430) that can be connected to the power shaft (1312) is provided above the annular plate (410). The flow guiding structure (420) is provided on the annular plate (410) and the movable plate (430), and the outer diameter of the annular plate (410) is larger than the outer diameter of the movable plate (430); The movable adjustable component includes a diverting part and a guiding part. The diverting part is located near the middle of the annular plate (410) and is located on the diameter of the circumference of the annular plate (410). The diverting part is located close to the guiding part. The diverting part can extend and retract vertically. While the guiding part can extend and retract vertically, it can swing in a fan shape away from the diverting part, which can change the opening range of the outside of the mixing channel (450). The diverting part includes a U-shaped plate (421) fixed to the upper end of the annular plate (410). A diverting plate (4211) is slidably connected inside the U-shaped plate (421). The upper end of the diverting plate (4211) is fixedly connected to the bottom of the movable plate (430). The flow guiding part includes a J-shaped plate (422) rotatably disposed on the upper end of the annular plate (410). A flow guiding plate (4221) is slidably connected inside the J-shaped plate (422). A through groove (4222) is provided through one end of the flow guiding plate (4221) vertically. The flow guiding plate (4221) is rotatably connected to the bottom of the movable plate (430). A spiral rod (423) is fitted inside the through groove (4222). The spiral rod (423) is located inside the J-shaped plate (422) and fixed on the annular plate (410).

2. The intelligent aquaculture wastewater treatment device according to claim 1, characterized in that, The drug mixing structure (400) consists of at least two sets distributed vertically, with a slow-flow cavity (500) formed between two adjacent sets of drug mixing structures (400).

3. The intelligent aquaculture wastewater treatment device according to claim 1, characterized in that, The power shaft (1312) is fitted with a first reciprocating screw (440) that is rotatably mounted. The first reciprocating screw (440) coaxially passes through the movable plate (430) and is configured to cooperate with it. Two support rods (441) are fixed on the first reciprocating screw (440). The support rods (441) are fixedly connected to the inner wall of the processing tank (100).

4. The intelligent aquaculture wastewater treatment device according to claim 1, characterized in that, The conveying mechanism (600) is connected to the power shaft (1312). The conveying mechanism (600) includes a piston cylinder (620) fixedly installed at the bottom of the processing tank (100). A movable piston (650) is slidably connected inside the piston cylinder (620). A second reciprocating screw (640) is rotatably connected to the upper end of the movable piston (650). The second reciprocating screw (640) is coaxially fixedly connected to the power shaft (1312). A limit plate (630) is installed inside the piston cylinder (620). The second reciprocating screw (640) passes through the limit plate (630) and is connected to it. The outer wall of the piston cylinder (620) is provided with a plurality of arc-shaped drain pipes (660). A first one-way valve (670) is installed on the arc-shaped drain pipes (660).

5. The intelligent aquaculture wastewater treatment device according to claim 4, characterized in that, Below the treatment tank (100) is a medicine storage tank (300). The piston cylinder (620) is connected to the medicine storage tank (300) through a medicine inlet pipe (610). A second one-way valve (611) is installed on the medicine inlet pipe (610).

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