Integrated sewage treatment system

Abstract

The present application provides a kind of sewage integrated treatment system, including solid-liquid separation tank and device main body, solid-liquid separation tank top is equipped with water inlet, solid-liquid separation tank bottom side is equipped with blow-off port, solid-liquid separation tank inside lower portion is sequentially equipped with first filter plate and second filter plate from top to bottom, first filter plate top two sides are equipped with side cavity, side cavity top is symmetrically equipped with inclined plane, first filter plate top is equipped with anti-blocking mechanism, and the drive part of anti-blocking mechanism is located in the side cavity of one side;Device main body is divided into first water sump, second water sump and third water sump in;Solid-liquid separation tank side lower portion is communicated with the top of first water sump by inlet pipe;First water sump is communicated with second water sump by first water pipe, and second water sump is equipped with compression mechanism, second water sump is communicated with third water sump by second water pipe, and water pump is connected on second water pipe, first water pipe, third water sump is equipped with stirring mechanism.The structure solves the problem of slow speed of traditional single-stage filtration separation, incomplete filtration.

Description

Technical Field

[0001] This invention relates to an integrated wastewater treatment system, belonging to the technical field of wastewater treatment equipment. Background Technology

[0002] Before wastewater purification, solid-liquid separation must be completed to ensure the subsequent purification effect. Therefore, solid-liquid separation devices are used to filter and separate wastewater. In the traditional process of treating wastewater and sludge, solid-liquid separation is mostly carried out by direct filtration. However, the single-stage filtration separation speed is slow and cannot meet the needs of large-scale wastewater and sludge treatment. Therefore, an integrated wastewater treatment system is needed to meet the requirements. Summary of the Invention

[0003] In view of the shortcomings of existing technologies, the purpose of this invention is to provide an integrated wastewater treatment system.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: An integrated wastewater treatment system includes a solid-liquid separation tank and a main body. The solid-liquid separation tank has an inlet at the top and a drain outlet on one side of the bottom. A first filter plate and a second filter plate are arranged sequentially from top to bottom in the lower part of the solid-liquid separation tank. Side cavities are located on both sides of the top of the first filter plate, with symmetrical inclined surfaces at the top of the side cavities. An anti-clogging mechanism is located on the top of the first filter plate, with its drive unit located in one side cavity. The main body is divided into a first water chamber, a second water chamber, and a third water chamber. The lower side of the solid-liquid separation tank is connected to the top of the first water chamber via an inlet pipe. The first water chamber is connected to the second water chamber via a first water supply pipe. A compression mechanism is located in the second water chamber. The second water chamber is connected to the third water chamber via a second water supply pipe. Water pumps are connected to both the second and first water supply pipes. A stirring mechanism is located in the third water chamber, and a clean water agent dosing box or clean water agent packing is placed at the bottom. An outlet is located on the bottom side of the third water chamber away from the second water chamber.

[0005] Furthermore, the bottom of the solid-liquid separation tank is provided with an inclined guide plate that slopes toward the drain outlet.

[0006] Furthermore, a third filter plate is provided on the side of the first water tank away from the water inlet pipe.

[0007] Furthermore, the anti-blocking mechanism includes a lead screw, one end of which is connected to the drive unit for transmission. A threaded block is sleeved on the lead screw, and a fixed plate is provided on the top of the threaded block. Guide sleeves are provided on both sides of the bottom of the fixed plate. A second guide rod is inserted through the middle of the guide sleeve and fixed between the two sides of the outer wall of the side cavity. Brush plates are provided at the bottom of the guide sleeve and the threaded block. Supports are provided on both sides of the top of the fixed plate, and a connecting shaft is provided transversely between the supports. Several V-shaped frames are evenly sleeved at both ends and the middle of the connecting shaft. A protrusion is provided at the center of one side of the bottom side wall of the V-shaped frame. L-shaped seats are provided on both sides of the outer wall of the side cavity away from the drive unit. A drive rod is provided on the lower part of the side of the L-shaped seat, and the other end of the drive rod is movably connected to the side of the corresponding protrusion.

[0008] Furthermore, the drive unit includes a motor, which is fixed to the inner wall of the side cavity. The output end of the motor is connected to a main pulley, and a secondary pulley is provided above the main pulley. The secondary pulley is connected to the main pulley via a belt, and a shaft is provided in the middle of the secondary pulley. The shaft passes through the side cavity and is connected to the end of the lead screw for transmission.

[0009] Furthermore, the compression mechanism includes a first mounting base, which is fixedly installed at the center of one side wall inside the second water tank. A cylinder is mounted on the first mounting base, and a second mounting base is mounted on the upper part of the cylinder. The second mounting base is fixedly installed at the upper part of the center of the second water tank. A rod is mounted inside the cylinder, which passes through the cylinder, and an inverted U-shaped plate is mounted on its top. Filling plates are provided on both sides of the first mounting base, and the filling plates are filled with a sediment adsorbent. Guide rods are provided at both ends of the top side of the filling plates. The top of the guide rods is fixed to the corresponding sides of the top of the second water tank. Several lifting plates are provided above the filling plates, and the guide rods pass through the lifting plates. The corresponding sides of the lifting plates on both sides are connected by a folding structure. The topmost lifting plate is fixed to the side of the inverted U-shaped plate.

[0010] Furthermore, the folding structure includes several connecting arms, the outer ends of which are connected by a movable shaft, and the middle ends of which are movably connected to the center of the corresponding lifting plate side by a movable shaft. The middle lifting plate is fixed to the inner wall of the second water tank on the side away from the folding structure.

[0011] Furthermore, the stirring mechanism includes a second motor, which is fixedly installed on the top of the third water tank. The output end of the second motor is connected to a drive shaft, which passes through the main body of the device. The drive shaft is fitted with a slanted paddle, a spiral lifting paddle, and an anchor-type stirring frame from top to bottom inside the third water tank.

[0012] Furthermore, valves are provided on the water inlet pipe, the first water delivery pipe, and the second delivery pipe.

[0013] The beneficial effects of this invention are: The system is equipped with an independent solid-liquid separation tank. Inside the tank, a dual filtration structure with a first filter plate and a second filter plate is arranged in layers. Combined with a bottom inclined guide plate, after the sewage enters from the top inlet, solid impurities are intercepted by the two filter plates step by step. The intercepted sludge and impurities flow along the inclined guide plate to the sewage outlet for centralized discharge. Multi-layer filtration can significantly improve the solid-liquid separation accuracy and solve the problems of slow separation speed and incomplete filtration in traditional single-stage filtration.

[0014] The solid-liquid separation tank is equipped with an anti-clogging mechanism. Motor 1 drives the lead screw through a belt pulley. The lead screw drives the threaded block and the bottom brush plate to slide back and forth along the guide rod 2, continuously cleaning the surface of the first filter plate of clogging dirt. When the lead screw drives the fixed plate to move synchronously, the support and connecting shaft drive multiple sets of V-shaped frames to swing back and forth with the drive rod, scraping off the floating scum accumulated on the inclined surface of the side cavity. The dual cleaning action is carried out simultaneously, which can continuously maintain the permeability of the filter plate and eliminate the need for frequent manual shutdown to clean the filter plate.

[0015] The main body of the device is divided into three independent water tanks: the first, second, and third, which complete multi-stage wastewater purification in stages. Each water tank is supplied with wastewater through pipelines equipped with valves and pumps, and the inflow rate of each tank can be controlled independently, ensuring that the treatment processes in each stage do not interfere with each other. A third filter plate is added inside the first water tank. After the wastewater flows in from the solid-liquid separation tank, it first passes through the third filter plate for secondary filtration, intercepting fine suspended solids missed in the solid-liquid separation process, further reducing the treatment load of subsequent water tanks.

[0016] The second water tank is equipped with a compression mechanism. One cylinder drives one air rod to raise and lower an inverted U-shaped plate. The inverted U-shaped plate pulls the multi-layer lifting plate and the folding structure composed of cross connecting arms to retract and unfold synchronously. When the lifting plate is pressed down, it squeezes the filling plates on both sides, and the adsorbent inside the filling plate comes into full contact with the sewage. Suspended pollutants and colloidal impurities in the water are captured by the adsorbent. When the lifting plate is raised, the sewage can circulate fully. The reciprocating compression increases the contact time between the adsorbent and the sewage, and enhances the sewage sedimentation, adsorption and purification effect.

[0017] The top of the third water tank is equipped with a multi-stage stirring mechanism driven by two motors. The drive shaft is installed with a slanted blade, a spiral lifting blade, and an anchor-type stirring frame from top to bottom. The three stirring components operate synchronously. The slanted blade disperses the floating flocs in the upper layer of water, the spiral lifting blade drives the water to circulate up and down, and the anchor-type stirring frame scrapes away the sediment and clumps at the bottom of the tank. This allows the water purification agent placed at the bottom of the tank to dissolve and disperse evenly inside the wastewater. The water purification agent and wastewater are fully mixed and reacted to completely degrade pollutants in the water and improve the quality of the final effluent. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an integrated wastewater treatment system according to the present invention; Figure 2 This is a schematic diagram of the internal partition structure of the main body of an integrated wastewater treatment system according to the present invention; Figure 3 This is a schematic diagram of the anti-clogging mechanism structure of an integrated wastewater treatment system according to the present invention; Figure 4 This is a schematic diagram of the V-shaped frame structure of an integrated wastewater treatment system according to the present invention; Figure 5 This is a schematic diagram of the internal structure of the second water tank in an integrated wastewater treatment system according to the present invention; Figure 6 This is a schematic diagram of the compression mechanism structure of an integrated wastewater treatment system according to the present invention; Figure 7 This is a schematic diagram of the internal structure of the third water tank in an integrated wastewater treatment system of the present invention.

[0020] In the diagram, 1. Solid-liquid separation tank; 2. Main body of the device; 3. Inlet; 4. Outlet; 5. First filter plate; 6. Second filter plate; 7. Side cavity; 8. Inclined surface; 9. Anti-clogging mechanism; 10. First water tank; 11. Second water tank; 12. Third water tank; 13. Inlet pipe; 14. First water delivery pipe; 15. Compression mechanism; 16. Second water delivery pipe; 17. Water pump; 18. Water purification agent; 19. Outlet; 20. Inclined guide plate; 21. Third filter plate; 22. Lead screw; 23. Threaded block; 24. Fixing plate; 25. Guide sleeve; 26. Guide... 27. Brush plate; 28. Support; 29. ​​Coupling; 30. V-frame; 31. Protrusion; 32. L-shaped seat; 33. Drive rod; 34. Motor 1; 35. Main pulley; 36. Secondary pulley; 37. Belt; 38. First mounting seat; 39. Cylinder 1; 40. Second mounting seat; 41. Air rod 1; 42. Inverted U-shaped plate; 43. Filler plate; 44. Guide rod 1; 45. Lifting plate; 46. Connecting arm; 47. Motor 2; 48. Drive shaft; 49. Inclined paddle; 50. Spiral lifting paddle; 51. Anchor-type mixing frame. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-7 This invention provides a technical solution for an integrated wastewater treatment system, comprising a solid-liquid separation tank 1 and a main body 2. The solid-liquid separation tank 1 has an inlet 3 at its top and a drain 4 on one side of its bottom. Inside the solid-liquid separation tank 1, from top to bottom, are arranged a first filter plate 5 and a second filter plate 6. The first filter plate 5 has side cavities 7 on both sides of its top, and symmetrical inclined surfaces 8 on the top of each side cavity 7. The first filter plate 5 has an anti-clogging mechanism 9 on its top, with the drive unit of the anti-clogging mechanism 9 located within one side cavity 7. The main body 2 is divided into a first water tank 10, a second water tank 11, and a third water tank 12. 2; The lower side of the solid-liquid separation tank 1 is connected to the top of the first water tank 10 through the water inlet pipe 13; the first water tank 10 is connected to the second water tank 11 through the first water supply pipe 14, the second water tank 11 is equipped with a compression mechanism 15, the second water tank 11 is connected to the third water tank 12 through the second water supply pipe 16, and water pumps 17 are connected to both the second water supply pipe 16 and the first water supply pipe 14; the third water tank 12 is equipped with a stirring mechanism, and a clean water agent dosing box or water purification agent filler 18 is placed at the bottom; the bottom side of the third water tank 12 away from the second water tank 11 is equipped with a water outlet 19.

[0023] See Figure 1 , Figure 3 , Figure 4The solid-liquid separation tank 1 has an inclined guide plate 20 at its bottom that slopes towards the drain outlet 4. A third filter plate 21 is located on the side of the first water tank 10 away from the inlet pipe 13. The anti-clogging mechanism 9 includes a lead screw 22, one end of which is connected to a drive unit. A threaded block 23 is fitted onto the lead screw 22. A fixing plate 24 is located on the top of the threaded block 23. Guide sleeves 25 are located on both sides of the bottom of the fixing plate 24. A second guide rod 26 is inserted through the middle of the guide sleeve 25 and fixed between the two sides of the outer wall of the side cavity 7. Brush plates 27 are located at the bottom of both the guide sleeves 25 and the threaded block 23. Supports 28 are located on both sides of the top of the fixing plate 24, and a connecting shaft 29 passes through the supports 28. Several V-shaped frames 30 are evenly fitted at both ends and the middle of the connecting shaft 29. A protrusion 31 is provided at the center of one side of the bottom side wall of the V-shaped frame 30. L-shaped seats 32 are provided on both sides of the outer wall of the side cavity 7 away from the drive unit. A drive rod 33 is provided on the lower part of the side of the L-shaped seat 32. The other end of the drive rod 33 is movably connected to the side of the corresponding protrusion 31. The drive unit includes a motor 34. The motor 34 is fixed to the inner wall of the side cavity 7. The output end of the motor 34 is connected to a main pulley 35. A secondary pulley 36 is provided above the main pulley 35. The secondary pulley 36 is connected to the main pulley 35 through a belt 37. A shaft is provided in the middle of the secondary pulley 36. The shaft passes through the side cavity 7 and is connected to the end of the lead screw 22 for transmission.

[0024] See Figure 2 , Figure 5-6 The compression mechanism 15 includes a first mounting base 38, which is fixedly installed at the center of one side wall inside the second water tank 11. A cylinder 39 is mounted on the first mounting base 38, and a second mounting base 40 is mounted on the upper part of the cylinder 39. The second mounting base 40 is fixedly installed at the upper part of the center of the inner side of the second water tank 11. A rod 41 is installed inside the cylinder 39, penetrating the cylinder, and a U-shaped plate 42 is provided at its top. Filling plates 43 are provided on both sides of the first mounting base 38, filled with a precipitating adsorbent. Guide rods 44 are provided at both ends of the top side of the filling plate 43. 4. The top is fixed inside the second water tank 11 on both sides. Several lifting plates 45 are provided above the filling plate 43. The guide rod 44 passes through the lifting plate 45. The corresponding sides of the lifting plates 45 on both sides are connected by a folding structure. The topmost lifting plate 45 is fixed to the side of the inverted U-shaped plate 42. The folding structure includes several connecting arms 46. The outer cross ends of the connecting arms 46 are connected by a movable shaft. The middle cross ends of the connecting arms 46 are movably connected to the center of the corresponding lifting plate 45 side by a movable shaft. The middle lifting plate 45 is fixed to the inner wall of the second water tank 11 on the side away from the folding structure.

[0025] See Figure 7The stirring mechanism includes a second motor 47, which is fixedly installed on the top of the third water tank 12. The output end of the second motor 47 is connected to a drive shaft 48, which passes through the main body 2 of the device. The drive shaft 48 is equipped with a slanted paddle 49, a spiral lifting paddle 50 and an anchor stirring frame 51, which are arranged sequentially from top to bottom inside the third water tank 12. Valves are provided on the water inlet pipe 13, the first water delivery pipe 14 and the second delivery pipe 16.

[0026] The structures involved, such as circuits, electronic components, control modules, and equipment cavities with heat dissipation holes and maintenance doors, are all existing technologies that can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve improvements to software and methods, or to heat dissipation and maintenance.

[0027] In use, rural domestic sewage enters the solid-liquid separation tank 1 through the top inlet 3. The sewage first flows through the first filter plate 5, where large solid particles are intercepted. The remaining water flows downward through the first filter plate 5, while fine silt and flocculent impurities are intercepted by the second filter plate 6 below. The two filter plates complete the initial solid-liquid separation. The inclined guide plate 20 at the bottom of the tank guides the falling sludge to the discharge port 4. The sludge can be discharged by opening the discharge port 4 periodically. Motor 34 operates continuously, driving secondary pulley 36 to rotate via main pulley 35 and belt 37. Secondary pulley 36 drives lead screw 22 to rotate synchronously. Threaded block 23 on lead screw 22 moves horizontally back and forth along guide rod 26. Threaded block 23 continuously rubs and cleans the surface of first filter plate 5 with brush plate 27 at the bottom of guide sleeve 25, scraping away dirt clogging the filter holes. When fixed plate 24 moves synchronously with threaded block 23, support 28 and connecting shaft 29 drive multiple sets of V-shaped frames 30 to move synchronously. Drive rod 33 connected to the side protrusion of V-shaped frame 30 performs reciprocating push-pull motion based on L-shaped seat 32. V-shaped frame 30 continuously swings to scrape away scum accumulated on the inclined surface 8 of side cavity 7, continuously cleaning the filter plate and scum in side cavity 7 throughout the process to prevent clogging of the filtration channel.

[0028] The clean water that has completed solid-liquid separation is collected at the bottom of the solid-liquid separation tank 1. The valve of the water inlet pipe 13 is opened, and the matching water pump delivers the clean water to the first water tank 10 inside the main body 2 of the device. After the water flows into the first water tank 10, the third filter plate 21 on the side away from the water inlet pipe 13 intercepts the small suspended matter remaining in the water, completing the third stage of filtration.

[0029] The valve of the first water supply pipe 14 and the matching water pump 17 are opened, and the filtered water in the first water tank 10 is transported to the second water tank 11. The cylinder 39 controls the air rod 41 to repeatedly rise and fall. The inverted U-shaped plate 42 at the top of the air rod 41 pulls the uppermost lifting plate 45 up and down. The multi-layer lifting plates 45 are synchronously closed and opened by the folding structure formed by the cross connecting arms 46. During the downward pressing of the lifting plate 45, the filling plates 43 on both sides are squeezed. The precipitated adsorbent in the filling plate 43 fully contacts the sewage and adsorbs colloidal and suspended pollutants in the water. During the lifting phase of the lifting plate 45, the water flows freely. The reciprocating squeezing action prolongs the contact time between the sewage and the adsorbent, completing the adsorption, sedimentation and purification.

[0030] The valve on the second water supply pipe 16 and the matching water pump 17 are opened, and the water treated in the second water tank 11 is transported to the third water tank 12. The motor 47 at the top of the third water tank 12 is started, driving the main shaft 48 to rotate continuously. The inclined paddle 49 on the upper part of the main shaft stirs the upper water and disperses the floating flocs. The spiral lifting paddle 50 in the middle drives the water to circulate and flow up and down. The anchor-type stirring frame 51 at the bottom continuously scrapes the bottom of the tank. The water purification agent placed at the bottom of the tank is completely dissolved and evenly mixed into the sewage under the action of the multi-layer stirring components. The water purification agent and sewage undergo a full purification reaction, degrading various pollutants inside the water. After all the treatment processes are completed, the purified water that meets the standards is continuously discharged from the outlet 19 at the bottom side of the third water tank 12.

[0031] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated wastewater treatment system, characterized in that, The device includes a solid-liquid separation tank (1) and a main body (2). The solid-liquid separation tank (1) has an inlet (3) at the top and a drain outlet (4) on one side of the bottom. The solid-liquid separation tank (1) has a first filter plate (5) and a second filter plate (6) arranged from top to bottom in the lower part of the solid-liquid separation tank (1). The first filter plate (5) has side cavities (7) on both sides of the top. The side cavities (7) have symmetrical inclined surfaces (8) on the top. The first filter plate (5) has an anti-blocking mechanism (9) on the top. The driving part of the anti-blocking mechanism (9) is located in the side cavity (7) on one side. The main body (2) of the device is divided into a first water tank (10), a second water tank (11) and a third water tank (12); the lower side of the solid-liquid separation tank (1) is connected to the top of the first water tank (10) through a water inlet pipe (13); the first water tank (10) is connected to the second water tank (11) through a first water supply pipe (14); the second water tank (11) is equipped with a compression mechanism (15); the second water tank (11) is connected to the third water tank (12) through a second water supply pipe (16); water pumps (17) are connected to both the second water supply pipe (16) and the first water supply pipe (14); the third water tank (12) is equipped with a stirring mechanism, and a clean water agent dosing box or water purification agent filler (18) is placed at the bottom; the bottom side of the third water tank (12) away from the second water tank (11) is equipped with a water outlet (19).

2. The integrated wastewater treatment system according to claim 1, characterized in that, The solid-liquid separation tank (1) has an inclined guide plate (20) at the bottom that is inclined toward the drain outlet (4).

3. The integrated wastewater treatment system according to claim 1, characterized in that, A third filter plate (21) is provided on the side of the first water tank (10) away from the water inlet pipe (13).

4. The integrated wastewater treatment system according to claim 1, characterized in that, The anti-blocking mechanism (9) includes a lead screw (22), one end of which is connected to the drive unit for transmission. A threaded block (23) is sleeved on the lead screw (22). A fixing plate (24) is provided on the top of the threaded block (23). Guide sleeves (25) are provided on both sides of the bottom of the fixing plate (24). A second guide rod (26) is inserted through the middle of the guide sleeve (25). The second guide rod (26) is fixed between the two sides of the outer wall of the side cavity (7). Brush plates (27) are provided at the bottom of both the guide sleeve (25) and the threaded block (23). Supports (28) are provided on both sides of the top of the plate (24). A connecting shaft (29) is provided between the supports (28). Several V-shaped frames (30) are evenly fitted at both ends and the middle of the connecting shaft (29). A protrusion (31) is provided at the center of one side of the bottom side wall of the V-shaped frame (30). L-shaped seats (32) are provided on both sides of the outer wall of the side cavity (7) away from the drive unit. A drive rod (33) is provided on the lower side of the L-shaped seat (32). The other end of the drive rod (33) is movably connected to the side of the corresponding protrusion (31).

5. The integrated wastewater treatment system according to claim 4, characterized in that, The drive unit includes a motor (34), which is fixed to the inner wall of the side cavity (7). The output end of the motor (34) is connected to a main pulley (35). A secondary pulley (36) is provided above the main pulley (35). The secondary pulley (36) is connected to the main pulley (35) through a belt (37). A shaft is provided in the middle of the secondary pulley (36). The shaft passes through the side cavity (7) and is connected to the end of the lead screw (22) for transmission.

6. The integrated wastewater treatment system according to claim 1, characterized in that, The compression mechanism (15) includes a first mounting base (38), which is fixedly installed at the center of one side wall of the second water tank (11). A cylinder (39) is provided on the first mounting base (38), and a second mounting base (40) is provided on the upper part of the cylinder (39). The second mounting base (40) is fixedly installed at the upper part of the center of the inner side of the second water tank (11). A rod (41) is provided inside the cylinder (39), and the rod (41) passes through the cylinder (39) and has an inverted U-shaped plate (42) on the top. The first mounting base (38) has a filling plate (43) on both sides. The filling plate (43) is filled with a sediment adsorbent. The top side of the filling plate (43) has a guide rod (44) at both ends. The top of the guide rod (44) is fixed to the corresponding sides of the top of the second water tank (11). Several lifting plates (45) are provided above the filling plate (43). The guide rod (44) passes through the lifting plate (45). The corresponding sides of the lifting plates (45) on both sides are connected by a folding structure. The topmost lifting plate (45) is fixed to the side of the inverted U-shaped plate (42).

7. The integrated wastewater treatment system according to claim 6, characterized in that, The folding structure includes several connecting arms (46). The outer ends of the connecting arms (46) are connected by a movable shaft. The middle ends of the connecting arms (46) are movably connected to the center of the side of the corresponding lifting plate (45) by a movable shaft. The middle lifting plate (45) is fixed to the inner wall of the second water tank (11) on the side away from the folding structure.

8. The integrated wastewater treatment system according to claim 1, characterized in that, The stirring mechanism includes a second motor (47), which is fixedly installed on the top of the third water tank (12). The output end of the second motor (47) is connected to a drive shaft (48), which passes through the main body (2) of the device. The drive shaft (48) is equipped with a slant paddle (49), a spiral lifting paddle (50), and an anchor stirring frame (51) in the third water tank (12) from top to bottom.

9. The integrated wastewater treatment system according to claim 1, characterized in that, Valves are provided on the inlet pipe (13), the first water delivery pipe (14), and the second delivery pipe (16).

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