Energy-saving and environment-friendly pesticide production wastewater treatment device

Abstract

The application belongs to the technical field of wastewater treatment, and specifically discloses an energy-saving and environment-friendly pesticide production wastewater treatment device, which comprises a pretreatment tank, an oxidation tank, a clarifier and a sedimentation tank arranged in sequence, the pretreatment tank is connected with a hydrolysis acidification tower through a second delivery pump, a gas outlet pipe is communicated with the top of the hydrolysis acidification tower, the hydrolysis acidification tower is communicated with the oxidation tank through a water outlet pipe arranged on the inner side close to the upper side of the hydrolysis acidification tower, a suspended filler layer is arranged in the hydrolysis acidification tower and close to the upper side, a resistance and delay part is arranged in the hydrolysis acidification tower and close to the lower side of the suspended filler layer, and a water distribution bin is arranged in the hydrolysis acidification tower and close to the lower side of the resistance and delay part, the energy-saving and environment-friendly pesticide production wastewater treatment device can realize power-free rotation water distribution through a speed-increasing rotating part, effectively reduce water flow kinetic energy through a water flow energy dissipation part, avoid high-speed jet flow from impacting the suspended filler layer, and disperse impurities through rotating blades to prevent blockage, and has the advantages of uniform water distribution, stable operation, energy saving and environmental protection.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and specifically discloses an energy-saving and environmentally friendly pesticide production wastewater treatment device. Background Technology

[0002] Pesticide production wastewater is characterized by its complex composition, high concentration of organic matter, high toxicity, and poor biodegradability. Hydrolysis-acidification, as a preliminary stage of anaerobic digestion, can convert large organic molecules into small organic acids, significantly improving the biodegradability of the wastewater and is a key unit in pesticide wastewater treatment.

[0003] Existing hydrolysis acidification devices often employ suspended packing materials (such as combined packing materials or elastic three-dimensional packing materials) to increase biofilm mass. However, the following problems commonly exist in actual operation: Traditional water distributors often use perforated pipes with small orifices. Pesticide wastewater often contains biological flocculent impurities, which easily clog the orifices. Once some orifices are clogged, the outflow velocity of the unclogged orifices increases dramatically, forming a high-speed jet that directly impacts the suspended packing material above, causing large-scale biofilm detachment.

[0004] The existing water distributor only distributes the flow rate and lacks an effective energy dissipation structure. The kinetic energy carried by the water flow acts directly on the packing layer without being reduced, causing the biofilm to be continuously subjected to a high shear stress environment. Even during normal operation, abnormal shedding can occur, reducing treatment efficiency.

[0005] Therefore, there is an urgent need for a hydrolysis acidification device that can simultaneously solve the three major problems of water distribution uniformity, kinetic energy reduction, and anti-clogging, so as to ensure the rapid biofilm formation and stable operation of the suspended packing material in the pesticide wastewater treatment system. Summary of the Invention

[0006] The purpose of this invention is to solve the problems existing in the background art, and to propose an energy-saving and environmentally friendly pesticide production wastewater treatment device, comprising a pretreatment tank, an oxidation tank, a clarification tank, and a sedimentation tank arranged sequentially. The pretreatment tank is connected to a hydrolysis acidification tower via a second transfer pump. An outlet pipe is connected to the top of the hydrolysis acidification tower. The hydrolysis acidification tower is connected to the oxidation tank via an outlet pipe located inside the tower near the top. A suspended packing layer is arranged inside the hydrolysis acidification tower near the top. A buffer element is arranged inside the hydrolysis acidification tower near the bottom of the suspended packing layer. A water distribution chamber is provided below the damping component. A main water distribution pipe is installed inside the water distribution chamber. The drainage end of the second delivery pump is connected to the inside of the main water distribution pipe. Water distribution branch pipes are connected at equal intervals along the circumferential direction above the inside of the water distribution chamber. An upper sleeve is sealed to the outside of the water distribution branch pipe. A sliding plate is provided above the outside of the upper sleeve. The sliding plate rotates with the upper sleeve through a rotating component provided on the outer edge of its bottom. A drive shaft is fixedly vertically connected to the middle of the bottom of the sliding plate. An acceleration rotating component is provided outside the drive shaft and near the inside of the water distribution branch pipe. A water flow energy dissipation component is provided above the inside of the water distribution branch pipe.

[0007] In the above technical solution, the damping element further includes two sets of damping nets, which are symmetrically installed inside the hydrolysis acidification tower and below the suspended packing layer.

[0008] In the above technical solution, the rotating component further includes multiple sets of sliders, which are installed at equal intervals along the circumferential direction on the outer edge of the bottom of the slide plate, and the sliders are slidably engaged with the outside of the upper sleeve.

[0009] In the above technical solution, the speed-increasing rotating component further includes a conical cylinder, which is fixedly mounted on the drive shaft and close to the inner side of the water distribution branch pipe. The conical cylinder is a waist drum shape that is thin at both ends and thick in the middle. The inner wall of the conical cylinder is composed of a cylindrical surface located in the middle section and conical surfaces respectively connected to the two ends of the cylindrical surface. Swirl vanes are installed at equal intervals along the circumferential direction on the outer middle of the conical cylinder.

[0010] In the above technical solution, two sets of crushing blades are further provided on the outside of the drive shaft and near the bottom of the conical cylinder, and the two sets of crushing blades are symmetrically arranged on both sides of the outside of the drive shaft.

[0011] In the above technical solution, the water flow energy dissipation component further includes multiple slow-flow ports opened along the circumferential direction on the upper pipe wall of the water distribution branch pipe. The inner wall of the upper sleeve is processed into a gradually expanding slope from top to bottom at the position opposite to the slow-flow ports, so that the water flow sprayed from the slow-flow ports changes direction and decelerates after hitting the slope.

[0012] In the above technical solution, further, the bottom of the slide plate is provided with a plurality of defoaming needles, one end of each of the plurality of defoaming needles is provided in the shape of a needle tip, a backflushing pipe is installed in the middle of the interior of the water distribution tank, a drain pipe is installed on one side of the bottom of the water distribution tank, and the ends of the drain pipe and the backflushing pipe away from the water distribution tank extend to the outside of the hydrolysis acidification tower.

[0013] In the above technical solution, a photovoltaic device is further provided on the upper surface of one side of the clarification tank, an aeration device is provided on one side of the oxidation tank, an aeration delivery pipe is connected to one end of the aeration device, multiple diversion pipes are connected to one side of the aeration delivery pipe, multiple microporous aeration discs are connected and installed inside the multiple diversion pipes, multiple sets of staggered grids are installed inside the pretreatment tank, the clarification tank is connected to the sedimentation tank through an overflow pipe connected and installed at the top inside, a dosing tank is provided inside the sedimentation tank, a dosing pipe is installed inside the dosing tank, and the oxidation tank is connected to the clarification tank through a first delivery pump.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention incorporates a water distribution chamber, a main water distribution pipe, and evenly distributed branch water distribution pipes along the circumference within the hydrolysis acidification tower. Combined with the water delivery from a second pump, this achieves preliminary uniform distribution of wastewater across the entire bottom cross-section of the tower. An upper sleeve is fitted over the branch water distribution pipes, and a rotatable sliding plate and drive shaft are installed above the upper sleeve. Crucially, the upper wall of the branch water distribution pipes has multiple slow-flow orifices, and the corresponding positions on the inner wall of the upper sleeve are machined into a gradually expanding slope from top to bottom. When wastewater is ejected at high speed from the slow-flow orifices on the side wall of the branch water distribution pipes, it directly impacts this slope, forcibly changing the flow direction and significantly reducing the flow velocity, forming a dispersed, low-speed upward flow, thus completing the first stage of energy dissipation. This water flow energy dissipation structure completely solves the problem of high-speed jets directly impacting the suspended packing layer caused by blocked orifices or excessive flow velocity in traditional water distributors. It avoids large-scale detachment of the biofilm due to hydraulic shear, protects the normal growth and metabolism of microorganisms on the suspended packing, thereby accelerating the biofilm formation rate and improving the treatment efficiency and operational stability of pesticide wastewater by hydrolysis and acidification.

[0015] 2. This invention, by setting a conical cylinder and swirl vanes outside the drive shaft, causes the flow cross-section to gradually contract as water enters from the lower end of the conical cylinder. Based on the Venturi principle, this significantly increases the water velocity and dynamic pressure, forming a localized jet. This high-speed jet impacts the swirl vanes outside the conical cylinder, converting the kinetic energy of the water into the rotational motion of the drive shaft and the sliding plate, achieving dynamic rotation of the water distribution area without external power. After passing through the middle section of the conical cylinder, the flow cross-section gradually expands, the flow velocity recovers, and the pressure rises, completing the second stage of energy conversion and pressurization diffusion. The water, after being rotated and distributed, is further evenly distributed throughout the entire tower cross-section, effectively eliminating the dead zones and short-circuit phenomena of traditional water distributors. When the drive shaft rotates, two sets of symmetrical shredding blades located near the inner side of the water distribution branch pipe rotate accordingly, effectively chopping up any biological flocculent impurities that may be present in the wastewater. This prevents impurities from accumulating and clogging the water distribution branch pipe or slow-flow outlet. Simultaneously, combined with the drain pipe and backflushing pipe connected to the bottom of the water distribution chamber, the water distribution chamber and branch pipes can be backflushed and drained periodically, ensuring the long-term smooth operation of the water distribution system, reducing maintenance frequency and manual cleaning costs. This is particularly suitable for pesticide production wastewater with high solids content.

[0016] 3. The present invention uses a damping net to ensure that when water flows from above the water distribution chamber into the hydrolysis acidification tower, the rising water is uniformly and buffered by the damping net, and enters the suspended packing layer in a uniform laminar flow state without impact. This ensures uniform water distribution while reducing the detachment of microorganisms from the outside of the suspended packing layer due to the impact of external factors and blockages. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is another schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram showing the structural breakdown of the inner part of the oxidation tank and pretreatment tank of the present invention; Figure 4 This is a schematic diagram showing the disassembled structure of the inner part of the hydrolysis acidification tower of the present invention; Figure 5 This is a partial structural breakdown diagram of the water distribution chamber and water distribution branch pipe of the present invention; Figure 6 This is a partial disassembly diagram of the connection structure between the upper sleeve and the water distribution branch pipe of the present invention; Figure 7 This is a schematic diagram of the connection structure between the water distribution branch pipe and the slow-flow outlet of the present invention; Figure 8 This is a schematic diagram of the connection structure between the defoaming needle and the slide plate of the present invention.

[0018] In the diagram: 1. Pretreatment tank; 2. Hydrolysis acidification tower; 3. Oxidation tank; 4. Aeration conveying pipe; 5. Photovoltaic device; 6. Clarification tank; 7. Sedimentation tank; 8. Overflow pipe; 9. First conveying pump; 10. Second conveying pump; 11. Aeration device; 12. Water outlet pipe; 13. Air outlet pipe; 14. Dosing pipe; 15. Dosing tank; 16. Microporous aeration disc; 17. Bar screen; 18. Water distribution tank; 19. Sewage pipe; 20. Backflush pipe; 21. Suspended packing layer; 22. Upper sleeve; 23. Water distribution branch pipe; 24. Water distribution main pipe; 25. Sliding disc; 26. Crusher; 27. Sliding block; 28. Drive shaft; 29. ​​Conical cylinder; 30. Swirl vane; 31. Damping mesh; 32. Flow slowing port; 33. Defoaming needle. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0021] like Figures 1-8 The device shown is an energy-saving and environmentally friendly pesticide production wastewater treatment device, comprising a pretreatment tank 1, an oxidation tank 3, a clarification tank 6, and a sedimentation tank 7 arranged sequentially. The pretreatment tank 1 is connected to a hydrolysis acidification tower 2 via a second transfer pump 10. An outlet pipe 13 is connected to the top of the hydrolysis acidification tower 2. The hydrolysis acidification tower 2 is connected to the oxidation tank 3 via an outlet pipe 12 located on its inner side near the top. A suspended packing layer 21 is arranged inside the hydrolysis acidification tower 2 near the top. A buffer element is arranged inside the hydrolysis acidification tower 2 below the suspended packing layer 21. A water distribution chamber 18 is arranged inside the hydrolysis acidification tower 2 below the buffer element. A main water distribution pipe 24 is installed inside the water distribution chamber 18. The drain end of the second transfer pump 10 is connected to the inside of the main water distribution pipe 24. Water distribution branch pipes 23 are equidistantly arranged along the circumferential direction above the inside of the water distribution chamber 18. An upper sleeve 22 is sealed to the outside of the water distribution branch pipes 23. A [missing information - likely a type of sealing device] is arranged above the outside of the upper sleeve 22. The sliding plate 25 is rotatably connected to the upper sleeve 22 via a rotating part set on the outer edge of the bottom. A drive shaft 28 is fixedly vertically connected to the middle of the bottom of the sliding plate 25. An acceleration rotating part is set on the outside of the drive shaft 28 and near the inside of the water distribution branch pipe 23. A water flow energy dissipation part is set on the upper part of the inside of the water distribution branch pipe 23. A photovoltaic device 5 is set on the upper surface of one side of the clarification tank 6. An aeration device 11 is set on one side of the oxidation tank 3. An aeration conveying pipe 4 is connected to the upper part of one end of the aeration device 11. A multi-group diversion pipe is connected to one side of the aeration conveying pipe 4. A multi-group diversion pipe is connected to a multi-microporous aeration disc 16. A multi-group staggered grid 17 is installed inside the pretreatment tank 1. The clarification tank 6 is connected to the sedimentation tank 7 via an overflow pipe 8 installed on the upper part of the inside. A dosing tank 15 is set inside the sedimentation tank 7. A dosing pipe 14 is installed inside the dosing tank 15. The oxidation tank 3 is connected to the clarification tank 6 via a first conveying pump 9. In this embodiment, the wastewater first enters the pretreatment tank 1. After being intercepted by the screen 17, large particles of debris are blocked. Then, it is pumped by the second transfer pump 10 into the water distribution main pipe 24 at the bottom of the hydrolysis acidification tower 2, and then into the water distribution chamber 18. The wastewater flows upward from the inside of the water distribution branch pipe 23. It first passes through the speed-increasing rotating component to utilize the wastewater without power. Then, the water flows through the water flow energy dissipation component area to dissipate the energy of the wastewater. Finally, it is evenly distributed by the buffer component and enters the interior of the suspended packing layer 21 at a constant speed to complete the hydrolysis acidification reaction.

[0022] The wastewater enters the oxidation tank 3 through the outlet pipe 12 of the hydrolysis acidification tower 2. Compressed air generated by the aeration device 11 is sent to each microporous aeration disc 16 via the aeration delivery pipe 4 and the distribution pipe. The microporous aeration disc 16 releases tiny bubbles, providing sufficient dissolved oxygen for aerobic microorganisms to oxidize and decompose small-molecule organic matter in the wastewater. The oxidized water is then sent to the clarification tank 6 by the first delivery pump 9. In the clarification tank 6, mud and water are separated, and the supernatant enters the sedimentation tank 7 through the overflow pipe 8. In the sedimentation tank 7, the chemicals in the dosing tank 15 are added to the water through the dosing pipe 14 for chemical coagulation or advanced treatment, and the final clear water is discharged or reused.

[0023] The damping element includes two sets of damping nets 31, which are symmetrically installed inside the hydrolysis acidification tower 2 and close to the lower part of the suspended packing layer 21. In this embodiment, the rising water flow, after being decelerated by the energy dissipator, first encounters a set of damping nets 31 below. As the water flows through the damping nets 31, the flow velocity is further homogenized due to the throttling and dispersing effect of the nets, and local turbulence is suppressed. Subsequently, the water flow naturally transitions through the interval between the two sets of damping nets 31, and then passes through the upper set of damping nets 31, achieving two uniform flow buffering processes. Finally, the water flow enters the suspended packing layer 21 at an extremely low velocity and in a vertically upward laminar flow state.

[0024] The rotating component includes multiple sets of sliders 27, which are installed at equal intervals along the circumferential direction on the outer edge of the bottom of the slide plate 25. The sliders 27 are slidably engaged with the outside of the upper sleeve 22. In this embodiment, when the drive shaft 28 drives the slide 25 to rotate, the slider 27 on the outer edge of the bottom of the slide 25 rotates in a ring along the outer wall of the upper sleeve 22. The slider 27 and the upper sleeve 22 are in clearance fit. Since the sliders 27 are arranged at equal intervals along the circumference, the slide 25 obtains stable and concentric rotational support, and will not wobble or jam.

[0025] The speed-increasing rotating component includes a conical cylinder 29, which is fixedly mounted on the drive shaft 28 and close to the inner side of the water distribution branch pipe 23. The conical cylinder 29 is a waist drum shape with thin ends and thick middle. The inner wall of the conical cylinder 29 is composed of a cylindrical surface located in the middle section and conical surfaces connected to the two ends of the cylindrical surface. Swirl vanes 30 are installed at equal intervals along the circumferential direction on the outer middle of the conical cylinder 29. In this embodiment, wastewater flows upward from the bottom of the distribution branch pipe 23, first entering the conical inlet at the lower end of the conical cylinder 29. As the flow cross-section gradually contracts, according to the Venturi principle, the water velocity increases sharply, the dynamic pressure rises, and a high-speed jet is formed. This jet maintains high speed as it passes through the cylindrical surface of the middle section of the conical cylinder 29, and then impacts the swirl vanes 30 on the outside of the conical cylinder 29. This structure allows the wastewater to utilize its own kinetic energy to perform rotational motion, thereby helping to clear blockages inside the distribution branch pipe 23.

[0026] Two sets of crushing blades 26 are provided on the outside of the drive shaft 28 and below the conical cylinder 29. The two sets of crushing blades 26 are symmetrically arranged on both sides of the outside of the drive shaft 28. In this embodiment, when the drive shaft 28 rotates with the conical cylinder 29, the two sets of symmetrical crushing blades 26 rotate synchronously. Biofloc impurities that may be present in the wastewater are cut and torn into fine fragments by the rotating crushing blades 26 as they flow through the inner side of the water distribution branch pipe 23. These fragments can flow out through the slow-flow port 32 and be treated in subsequent wastewater treatment processes.

[0027] The water flow energy dissipation component includes multiple slow-flow ports 32 opened along the circumferential direction on the upper pipe wall of the water distribution branch pipe 23. The inner wall of the upper sleeve 22 is processed into a slope that gradually expands from top to bottom at the position opposite to the slow-flow ports 32, so that the water flow ejected from the slow-flow ports 32 changes direction and decelerates after hitting the slope. In this embodiment, the wastewater, after being accelerated and rotated, continues to flow upward into the upper part of the water distribution branch pipe 23, and is radially ejected from multiple slow-flow outlets 32 evenly distributed along the circumference. These jets directly impact the gradually expanding inclined surface of the inner wall of the upper sleeve 22. Since the inclined surface gradually expands from top to bottom, after the high-speed water flow impacts, part of it flows back downward along the inclined surface, mixing and canceling out the rising water flow; another part is reflected upward along the inclined surface, but due to the expansion angle of the inclined surface, the reflected water flow is dispersed and its speed drops sharply. Overall, the kinetic energy of the water flow is converted into internal energy and potential energy, forming a low-speed, diffuse upward flow.

[0028] Multiple defoaming needles 33 are provided at the bottom of the sliding plate 25. One end of each defoaming needle 33 is needle-tipped. A backflushing pipe 20 is installed in the middle of the water distribution tank 18. A drain pipe 19 is installed on one side of the bottom of the water distribution tank 18. The ends of the drain pipe 19 and the backflushing pipe 20 away from the water distribution tank 18 extend to the outside of the hydrolysis acidification tower 2. In this embodiment, during the rotational motion, some bubbles rise with the water flow. When the slide plate 25 rotates, the defoaming needle 33 at its bottom makes a circular motion, and the needle tip continuously punctures the bubbles, causing them to break and release gas, reducing the accumulation of foam layer and preventing foam from carrying sludge into the outlet pipe 12; Finally, to ensure the continued use of the water distribution chamber 18, during cleaning, open the cleaning water source or compressed air connected to the backwash pipe 20 to perform a reverse flushing of the inside of the water distribution chamber 18. The flushing water flows into the water distribution chamber 18 from the backwash pipe 20, flushing the lower inlet of the water distribution branch pipe 23 and the main water distribution pipe 24 in the reverse direction to clean the water distribution chamber 18, and then the drain pipe 19 is opened to discharge it outside the tower.

[0029] Working Principle: Wastewater from pesticide production sequentially enters the pretreatment tank 1. After being intercepted by multiple sets of staggered grids 17, large suspended particles are removed. The wastewater is then pumped by the second pump 10 to the main water distribution pipe 24 inside the hydrolysis acidification tower 2, and further into the water distribution chamber 18. The water flow is then diverted through multiple branch pipes 23. Water entering from within these branch pipes enters the speed-increasing rotating component area. A conical cylinder 29, fixedly mounted outside the drive shaft 28 and close to the inside of the branch pipes 23, is shaped like a drum, tapering at both ends and thickening in the middle. When water enters from the lower end of the conical cylinder 29, the flow cross-section gradually contracts. According to the Venturi principle, the water velocity increases significantly, and the dynamic pressure rises, forming a local jet. This jet impacts the swirl vanes 30 outside the conical cylinder 29, converting the kinetic energy of the water into the rotational motion of the drive shaft 28 and the sliding plate 25, achieving rotational water distribution without external power. After the water flows through the middle section of the conical cylinder 29, the cross-sectional area gradually expands, the flow velocity recovers, and the pressure rises, completing the first stage of energy conversion and pressurization diffusion. During the rotation of the drive shaft 28, the two sets of symmetrical crushing blades 26 set outside the shaft and near the bottom of the conical cylinder 29 rotate accordingly, shearing and crushing impurities such as biological flocs that may exist in the wastewater, preventing the water distribution branch pipe 23 or the subsequent slow flow port 32 from being blocked. After the water flow is accelerated and rotated, it continues to flow upward along the water distribution branch pipe 23 and enters the water flow energy dissipation component area set inside and above the water distribution branch pipe 23. After the water jet is ejected from the slow-flow outlet 32, it directly impacts the inclined surface, forcibly changing the direction of the water flow and significantly slowing it down, forming a dispersed, low-speed upward flow, completing the second stage of energy dissipation. This structure completely avoids the high-speed jet directly impacting the suspended packing layer 21, effectively preventing the biofilm from falling off due to hydraulic shear. At the same time, multiple defoaming needles 33 set at the bottom of the slide plate 25 puncture the air bubbles generated on the water surface during rotation, reducing foam accumulation. The low-speed upward flow after energy dissipation continues upward, passing through two sets of damping nets 31 installed symmetrically at the top and bottom. The damping net 31 further evens out and buffers the rising water flow, ensuring that the water enters the suspended packing layer 21 in a laminar flow state at a uniform velocity. This guarantees uniform water distribution and reduces the risk of microbial detachment caused by water flow impact. Inside the hydrolysis acidification tower 2, large molecular organic matter in the wastewater undergoes hydrolysis and acidification under the action of microorganisms in the suspended packing layer 21, transforming into small molecular organic acids. The generated gas is discharged through the top vent pipe 13. The treated water enters the oxidation tank 3 through the internal vent pipe 12 near the top. The wastewater entering the oxidation tank 3 undergoes aerobic oxidation treatment under the action of the aeration device 11 and the microporous aeration disc 16, and is then sent to the clarification tank 6 by the first transfer pump 9. The photovoltaic device 5 above the clarification tank 6 provides some clean energy for the system. The clarified water enters the sedimentation tank 7 through the overflow pipe 8, where it undergoes chemical precipitation treatment under the action of the dosing tank 15 and the dosing pipe 14, ultimately achieving compliant discharge or reuse.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An energy-saving and environmentally friendly pesticide production wastewater treatment device, comprising a pretreatment tank (1), an oxidation tank (3), a clarification tank (6), and a sedimentation tank (7) arranged sequentially, characterized in that, The pretreatment tank (1) is connected to a hydrolysis acidification tower (2) via a second conveying pump (10). The top of the hydrolysis acidification tower (2) is connected to an outlet pipe (13). The hydrolysis acidification tower (2) is connected to an oxidation tank (3) via an outlet water pipe (12) located on its inner side near the top. A suspended packing layer (21) is installed inside the hydrolysis acidification tower (2) near the top. A buffer is installed inside the hydrolysis acidification tower (2) below the suspended packing layer (21). A water distribution chamber (18) is installed inside the hydrolysis acidification tower (2) below the buffer. A water distribution main pipe (24) is installed inside the water distribution chamber (18). The second conveying pump... The pump (10) drain end is connected to the inside of the main water distribution pipe (24). The water distribution chamber (18) is connected to the water distribution branch pipe (23) at equal intervals along the circumferential direction. The water distribution branch pipe (23) is sealed with an upper sleeve (22). A sliding plate (25) is provided on the outside of the upper sleeve (22). The sliding plate (25) is rotatably engaged with the upper sleeve (22) through a rotating part provided on the outer edge of the bottom. A drive shaft (28) is fixedly vertically connected to the middle of the bottom of the sliding plate (25). An speed-increasing rotating part is provided on the outside of the drive shaft (28) and close to the inside of the water distribution branch pipe (23). A water flow energy dissipation part is provided on the inside of the water distribution branch pipe (23). The rotating component includes multiple sets of sliders (27), which are installed at equal intervals along the circumferential direction on the outer edge of the bottom of the slide plate (25). The sliders (27) are slidably engaged with the outside of the upper sleeve (22). The speed-increasing rotating component includes a conical cylinder (29), which is fixedly mounted on the drive shaft (28) and close to the inner side of the water distribution branch pipe (23). The conical cylinder (29) is a waist drum shape that is thin at both ends and thick in the middle. The inner wall of the conical cylinder (29) is composed of a cylindrical surface located in the middle section and conical surfaces connected to both ends of the cylindrical surface. Swirl vanes (30) are installed at equal intervals along the circumferential direction on the outer middle of the conical cylinder (29). Two sets of crushing blades (26) are provided on the outside of the drive shaft (28) and below the conical cylinder (29), and the two sets of crushing blades (26) are symmetrically arranged on both sides of the outside of the drive shaft (28). The water flow energy dissipation component includes multiple slow-flow ports (32) opened along the circumferential direction on the upper pipe wall of the water distribution branch pipe (23). The inner wall of the upper sleeve (22) is processed into a slope that gradually expands from top to bottom at the position opposite to the slow-flow ports (32), so that the water flow sprayed from the slow-flow ports (32) changes direction and decelerates after hitting the slope.

2. The energy-saving and environmentally friendly pesticide production wastewater treatment device according to claim 1, characterized in that, The damping element includes two sets of damping nets (31), which are symmetrically installed inside the hydrolysis acidification tower (2) and close to the lower part of the suspended packing layer (21).

3. The energy-saving and environmentally friendly pesticide production wastewater treatment device according to claim 1, characterized in that, The bottom of the slide plate (25) is provided with multiple defoaming needles (33), one end of each of the multiple defoaming needles (33) is set in the shape of a needle tip. The water distribution tank (18) is connected to the middle of the interior and a backflushing pipe (20) is connected to one side of the bottom of the water distribution tank (18). The ends of the backflushing pipe (20) away from the water distribution tank (18) extend to the outside of the hydrolysis acidification tower (2).

4. The energy-saving and environmentally friendly pesticide production wastewater treatment device according to claim 1, characterized in that, A photovoltaic device (5) is installed on one side of the upper surface of the clarification tank (6), an aeration device (11) is installed on one side of the oxidation tank (3), an aeration conveying pipe (4) is connected to one end of the aeration device (11), a multi-group diversion pipe is connected to one side of the aeration conveying pipe (4), and a multi-microporous aeration disc (16) is connected to the inside of the multi-group diversion pipe. A multi-group staggered grid (17) is installed inside the pretreatment tank (1). The clarification tank (6) is connected to the sedimentation tank (7) through an overflow pipe (8) connected to the upper part of the tank. A dosing tank (15) is installed inside the sedimentation tank (7), and a dosing pipe (14) is installed inside the dosing tank (15). The oxidation tank (3) is connected to the clarification tank (6) through a first conveying pump (9).

Images