Wastewater treatment system and method

Abstract

The invention discloses a wastewater treatment system and method, and relates to the technical field of wastewater treatment.The wastewater treatment system specifically comprises a pool body, a liquid discharge pipe is fixedly installed at the lower end of the right side of the pool body, a bottom plate is fixedly installed at the lower end of the pool body, and the right side of the front face of the bottom plate is fixedly connected with an impurity discharge pipe; a filter plate is movably clamped to the right side of the interior of the tank body, and a first stirring rod is movably mounted in the tank body. Through cooperation of the tank body, the quick-release assembly, the first stirring rod, the second stirring rod and the third stirring rod, the connection mode of the quick-release assembly, the side plates and the rollers is changed, so that the first stirring rod, the second stirring rod and the third stirring rod can be taken out from the interior of the tank body, and meanwhile, the stirring efficiency is improved. And the use positions of the first stirring rod, the second stirring rod and the third stirring rod can be conveniently adjusted, so that the flexibility of the first stirring rod, the second stirring rod and the third stirring rod in the actual use process is improved.

Description

Technical Field

[0001] The present invention relates to the field of wastewater treatment, and in particular to a wastewater treatment system and method. Background Art

[0002] The global photovoltaic and semiconductor industries are accelerating their transformation towards a "low-carbon, green, and circular" approach. However, the photovoltaic and semiconductor industries involve a large number of chemicals and special materials in their production processes, and the wastewater generated has complex composition, high pollutant concentrations, and various properties.

[0003] However, in the existing wastewater treatment process, a stirring rod is used to fully mix the wastewater and the chemical agent. Since the stirring rod used to mix the wastewater and the chemical agent is fixedly installed on the wastewater treatment tank, the fixed installation method between the stirring rod and the wastewater treatment tank makes it inconvenient to adjust the use position of the stirring rod according to actual usage, resulting in certain limitations in the use of the stirring rod. In addition, the fixed installation method is also inconvenient to remove the stirring rod from the wastewater treatment tank, which brings inconvenience to the cleaning of impurities wrapped around the surface of the stirring rod. Summary of the Invention

[0004] The present application proposes a wastewater treatment system and method, which has the advantages of: sufficient mixing of wastewater and chemical agents, facilitating the separation of impurities and water in the wastewater mixture, and simplifying the disassembly and assembly steps of the stirring rod, thereby solving the technical problems raised by the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a wastewater treatment system, including a pool body, wherein the lower end of the right side of the pool body is fixedly installed with a liquid discharge pipe, the lower end of the pool body is fixedly installed with a bottom plate, the right side of the front of the bottom plate is fixedly connected to the impurity discharge pipe, the filter plate is movably clamped on the right side of the inside of the pool body, and a first stirring rod is movably installed inside the pool body, and a second stirring rod and a third stirring rod are respectively provided on the front and rear sides of the first stirring rod, the front side of the upper end of the first stirring rod is connected to the second stirring rod through a first conveying assembly, the upper end of the first conveying assembly is fixedly connected to the mounting plate, the end of the mounting plate away from the first conveying assembly is fixedly installed with the second conveying assembly, and the lower end of the second conveying assembly is fixedly installed with the third stirring rod located behind the first stirring rod, the outside of the first conveying assembly and the second conveying assembly are fixedly installed with a box body, and rollers are fixedly installed at the front and rear ends of the box body, and the rollers are movably installed with side plates through a quick-release assembly, and the lower ends of the side plates are fixedly connected to the upper end of the pool body.

[0006] Preferably, a sealing plug is movably installed at the front end of the impurity discharge pipe, and the sealing plug is rotatably connected to a connecting line away from the outside of the impurity discharge pipe. A sleeve is fixedly installed at the rear end of the connecting line, and the rear end of the sleeve is fixedly connected to the front of the pool body.

[0007] Preferably, the upper end of the bottom plate is set as a slope with the left side higher and the right side lower, and a guide groove with the back higher and the front lower is provided on the right side of the upper end of the slope, and the front end of the guide groove is connected to the rear end of the impurity discharge pipe. The upper end of the slope is evenly provided with grooves located below the filter plate, and the lower end surface of the bottom plate is fixedly mounted with support legs.

[0008] Preferably, a pull rod is fixedly installed on the upper end surface of the filter plate, protrusions are evenly distributed on the lower end surface of the filter plate, and the outer walls of the protrusions are movably engaged with the inner walls of the grooves, and limit blocks are fixedly installed on the front and rear sides of the filter plate, and the outer wall of the limit block away from one end of the filter plate is movably engaged with the inner wall of the pool body.

[0009] Preferably, the first conveying assembly includes a first synchronous wheel, a first conveyor belt and a second synchronous wheel, the lower end of the first synchronous wheel is fixedly connected to the upper end of the first stirring rod, the end of the first synchronous wheel away from the first stirring rod is fixedly connected to the lower end of the mounting plate, the outer wall of the first synchronous wheel is movably engaged with the inner wall of the rear end of the first conveyor belt, the inner wall of the front end of the first conveyor belt is movably engaged with the outer wall of the second synchronous wheel, and the lower end of the second synchronous wheel is fixedly connected to the upper end of the second stirring rod.

[0010] Preferably, the second conveying assembly includes a third synchronous wheel, a second conveyor belt and a second conveyor belt, the inner walls of the front and rear ends of the second conveyor belt are movably connected to the outer walls of the third synchronous wheel and the fourth synchronous wheel respectively, the lower end of the fourth synchronous wheel is fixedly connected to the upper end of the third stirring rod, and the lower end of the third synchronous wheel is fixedly connected to the upper end of the mounting plate.

[0011] Preferably, the upper end of the third synchronous wheel is fixedly connected to a rotating shaft, a rotating motor is fixedly installed on the end of the rotating shaft away from the third synchronous wheel, and a reducer is provided on the output shaft of the rotating motor, and a protective box is fixedly installed on the outside of the rotating motor, heat dissipation holes are evenly opened on the protective box, and the lower ends of the heat dissipation holes are fixedly connected to the upper end surface of the box body.

[0012] Preferably, a through hole is formed in the middle of the roller, and the through hole is movably connected to the quick-release assembly. An extension plate is fixedly mounted on the upper end surface of the roller, and the end of the extension plate away from the roller is fixedly connected to the upper end surface of the box.

[0013] Preferably, the quick-release assembly includes an insert rod, a pull plate and a spring, the outer wall of the insert rod is movably connected to the inner wall of the spring, the outer end of the insert rod is fixedly connected to the inner side of the pull plate, one end of the spring is fixedly connected to the outer side of the side plate, the other end of the spring is fixedly connected to the inner side of the pull plate, and the outer wall of the insert rod is movably connected to the inner wall of the side plate and the through hole respectively.

[0014] A wastewater treatment method, using the wastewater treatment system, comprises the following steps: S1. Adding the collected wastewater from the photovoltaic cell industry into the interior of the tank, and then adding chemicals into the interior of the tank; S2. Install the corresponding number of first stirring rods, second stirring rods, and third stirring rods according to actual needs, and use the rollers to roll in the side panels to adjust the use positions of the first stirring rods, second stirring rods, and third stirring rods. After the positions of the first stirring rods, second stirring rods, and third stirring rods are determined, the quick-release assembly is connected to the side panels and the rollers. The pull plate pulls the insertion rod to stretch the spring, and the insertion rod is used to connect the rollers and the side panels to position the use positions of the first stirring rods, second stirring rods, and third stirring rods. S3. Turning on the power of the rotating motor, which drives the second conveying assembly to rotate through the connection of the rotating shaft, and the rotation of the second conveying assembly drives the rotation of the third stirring rod. The second conveying assembly rotates simultaneously with the rotation of the mounting plate, and the rotation of the mounting plate drives the rotation of the first stirring rod and the second stirring rod through the connection of the first conveying assembly. The rotation of the first stirring rod, the second stirring rod, and the third stirring rod fully mix the wastewater and the chemical in the tank body; S4. After the wastewater and chemical agents are mixed, the mixed liquid is filtered through the filter plate and the liquid is discharged from the liquid discharge pipe to the outside of the pool body. The impurities blocked by the filter plate slide on the slope with higher left and lower right sides, and the impurities slide to the outlet trough. Since the outlet trough is set as a slope with higher back and lower front, the impurities will move to the impurity discharge pipe, separate the sealing plug from the impurity discharge pipe, and the impurities will be discharged from the impurity discharge pipe to the outside of the pool body.

[0015] The present invention has the following beneficial effects: 1. The present invention adopts the method of changing the connection between the pool body, the quick-release assembly, the first stirring rod, the second stirring rod and the third stirring rod by cooperating with each other, and changing the connection method between the quick-release assembly and the side plate and the roller. This not only enables the first stirring rod, the second stirring rod and the third stirring rod to be taken out from the interior of the pool body, but also facilitates the adjustment of the use position of the first stirring rod, the second stirring rod and the third stirring rod, thereby improving the flexibility of the first stirring rod, the second stirring rod and the third stirring rod during actual use.

[0016] 2. The present invention cooperates among the filter plate, the pool body, the inclined surface and the outlet groove, utilizes the setting of the inclined surface with the left side higher and the right side lower, and combines the setting of the outlet groove with the back side higher and the front side lower, so that the impurities blocked by the filter screen slide on the floor and move to the inside of the outlet groove. The impurities in the outlet groove are then discharged from the liquid discharge pipe, thereby facilitating the discharge of impurities in the pool body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic diagram of the structure of the present invention; Figure 2 A top view of the rotating electrical machine in the structure of the present invention; Figure 3 In the structure of the present invention Figure 2 A magnified view of point A; Figure 4 A side view of the first stirring rod in the structure of the present invention; Figure 5 It is a top view of the box body in the structure of the present invention; Figure 6 A side view of the first transmission assembly in the structure of the present invention; Figure 7 A side view of the liquid discharge pipe in the structure of the present invention; Figure 8 A top view of the inclined surface in the structure of the present invention; Figure 9 A top view of the groove in the structure of the present invention; Figure 10 It is a side view of the filter plate in the structure of the present invention.

[0018] In the figure: 1, tank body; 2, liquid discharge pipe; 3, impurity discharge pipe; 4, bottom plate; 5, filter plate; 6, first stirring rod; 7, first conveyor assembly; 701, first synchronous wheel; 702, first conveyor belt; 703, second synchronous wheel; 8, mounting plate; 9, second conveyor assembly; 901, third synchronous wheel; 902, second conveyor belt; 903, fourth synchronous wheel; 10, box body; 11, roller; 12, quick release assembly; 1 21. Insert rod; 122. Pull plate; 123. Spring; 13. Support leg; 14. Side plate; 15. Sealing plug; 16. Connecting wire; 17. Sleeve; 18. Inclined surface; 19. Guide groove; 20. Groove; 21. Pull rod; 22. Bump; 23. Limit block; 24. Rotating shaft; 25. Rotating motor; 26. Protective box; 27. Heat dissipation hole; 28. Extension plate; 29. ​​Through hole; 30. Second stirring rod; 31. Third stirring rod. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the preferred embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 9, a wastewater treatment system includes a pool body 1, a liquid discharge pipe 2 is fixedly installed at the lower end of the right side of the pool body 1, a bottom plate 4 is fixedly installed at the lower end of the pool body 1, an impurity discharge pipe 3 is fixedly connected to the right side of the front of the bottom plate 4, a filter plate 5 is movably connected to the right side of the inside of the pool body 1, a first stirring rod 6 is movably installed inside the pool body 1, a second stirring rod 30 and a third stirring rod 31 are respectively provided on the front and rear sides of the first stirring rod 6, the front side of the upper end of the first stirring rod 6 is connected to the second stirring rod 30 through a first conveying assembly 7, the upper end of the first conveying assembly 7 is fixedly connected to a mounting plate 8, a second conveying assembly 9 is fixedly installed on the end of the mounting plate 8 away from the first conveying assembly 7, and the lower end of the second conveying assembly 9 is fixedly installed with the third stirring rod 31 located behind the first stirring rod 6, the first conveying assembly 7 A box body 10 is installed on the outside of the second transmission component 9, and rollers 11 are fixedly installed on the front and rear ends of the box body 10. The rollers 11 are movably installed with side panels 14 through quick-release components 12, and the lower ends of the side panels 14 are fixedly connected to the upper end of the pool body 1. Through the cooperation between the pool body 1, the quick-release component 12, the first stirring rod 6, the second stirring rod 30 and the third stirring rod 31, the connection method between the quick-release component 12 and the side panels 14 and the rollers 11 is changed, which not only enables the first stirring rod 6, the second stirring rod 30 and the third stirring rod 31 to be taken out from the inside of the pool body 1, but also facilitates the adjustment of the use positions of the first stirring rod 6, the second stirring rod 30 and the third stirring rod 31, thereby improving the flexibility of the first stirring rod 6, the second stirring rod 30 and the third stirring rod 31 during actual use.

[0021] A sealing plug 15 is movably installed at the front end of the impurity discharge pipe 3. When the sealing plug 15 is installed on the impurity discharge pipe 3, it can block the discharge of impurities in the pool body 1. At the same time, when the sealing plug 15 is removed from the impurity discharge pipe 3, the impurities in the pool body 1 can be discharged. The sealing plug 15 is rotated away from the outside of the impurity discharge pipe 3 and is connected to a connecting line 16. The connecting line 16 prevents the sealing plug 15 from being lost. A sleeve 17 is fixedly installed at the rear end of the connecting line 16, and the rear end of the sleeve 17 is fixedly connected to the front face of the pool body 1.

[0022] The upper end of the bottom plate 4 is set as a slope 18 with a higher left side and a lower right side. A guide groove 19 with a higher back and a lower front side is opened on the right side of the upper end of the slope 18, and the front end of the guide groove 19 is connected to the rear end of the impurity discharge pipe 3. The upper end of the slope 18 is evenly provided with grooves 20 located below the filter plate 5, and the lower end surface of the bottom plate 4 is fixedly installed with a support leg 13.

[0023] like Figure 6 、 Figure 7 、 Figure 8 and Figure 10A pull rod 21 is fixedly installed on the upper end surface of the filter plate 5. The installation of the pull rod 21 facilitates the removal of the filter plate 5 from the pool body 1. Bumps 22 are evenly distributed on the lower end surface of the filter plate 5, and the outer wall of the bump 22 is movably engaged with the inner wall of the groove 20. Limit blocks 23 are fixedly installed on the front and rear sides of the filter plate 5, and the outer wall of the limit block 23 away from the filter plate 5 is movably engaged with the inner wall of the pool body 1.

[0024] The first conveying assembly 7 includes a first synchronous wheel 701, a first conveyor belt 702 and a second synchronous wheel 703. The lower end of the first synchronous wheel 701 is fixedly connected to the upper end of the first stirring rod 6. The end of the first synchronous wheel 701 away from the first stirring rod 6 is fixedly connected to the lower end of the mounting plate 8. The outer wall of the first synchronous wheel 701 is movably engaged with the inner wall of the rear end of the first conveyor belt 702. The setting of the first conveyor belt 702 serves to connect the first synchronous wheel 701 and the second synchronous wheel 703. The inner wall of the front end of the first conveyor belt 702 is movably engaged with the outer wall of the second synchronous wheel 703. The lower end of the second synchronous wheel 703 is fixedly connected to the upper end of the second stirring rod 30.

[0025] The second conveying assembly 9 includes a third synchronous wheel 901, a second conveyor belt 902 and a second conveyor belt 902. The inner walls of the front and rear ends of the second conveyor belt 902 are movably connected to the outer walls of the third synchronous wheel 901 and the fourth synchronous wheel 903 respectively. The setting of the second conveyor belt 902 serves to connect the third synchronous wheel 901 and the fourth synchronous wheel 903. The lower end of the fourth synchronous wheel 903 is fixedly connected to the upper end of the third stirring rod 31, and the lower end of the third synchronous wheel 901 is fixedly connected to the upper end of the mounting plate 8.

[0026] The upper end of the third synchronous wheel 901 is fixedly connected to a rotating shaft 24, and a rotating motor 25 is fixedly installed on the end of the rotating shaft 24 away from the third synchronous wheel 901, and a reducer is provided on the output shaft of the rotating motor 25. A protective box 26 is fixedly installed on the outside of the rotating motor 25, and heat dissipation holes 27 are evenly opened on the protective box 26, and the lower ends of the heat dissipation holes 27 are fixedly connected to the upper end surface of the box body 10.

[0027] like Figure 3 、 Figure 6 and Figure 9 A through hole 29 is formed in the middle of the roller 11, and the through hole 29 is movably connected to the quick-release assembly 12. An extension plate 28 is fixedly installed on the upper end surface of the roller 11, and the end of the extension plate 28 away from the roller 11 is fixedly connected to the upper end surface of the box 10.

[0028] The quick-release assembly 12 includes an insert rod 121, a pull plate 122 and a spring 123. The outer wall of the insert rod 121 is movably connected to the inner wall of the spring 123, the outer end of the insert rod 121 is fixedly connected to the inner side of the pull plate 122, one end of the spring 123 is fixedly connected to the outer side of the side plate 14, and the other end of the spring 123 is fixedly connected to the inner side of the pull plate 122. The outer wall of the insert rod 121 is movably connected to the inner wall of the side plate 14 and the through hole 29 respectively.

[0029] A wastewater treatment method, using the wastewater treatment system, comprises the following steps: S1, adding the collected wastewater from the photovoltaic cell industry into the interior of the cell body 1, and then adding chemical agents into the interior of the cell body 1; S2. Install the corresponding number of first stirring rods 6, second stirring rods 30 and third stirring rods 31 according to actual needs, and use the roller 11 to roll in the side plate 14 to adjust the use position of the group of first stirring rods 6, second stirring rods 30 and third stirring rods 31. After the positions of the group of first stirring rods 6, second stirring rods 30 and third stirring rods 31 are determined, the quick-release assembly 12 is connected to the side plate 14 and the roller 11. The pull plate 122 pulls the insertion rod 121, the spring 123 is stretched, and the insertion rod 121 is used to connect the roller 11 to the side plate 14. The use position of the group of first stirring rods 6, second stirring rods 30 and third stirring rods 31 can be positioned; S3. Turn on the power of the rotating motor 25. The turning on of the rotating motor 25 drives the rotation of the second conveying assembly 9 through the connection of the rotating shaft 24. The rotation of the second conveying assembly 9 drives the rotation of the third stirring rod 31. The second conveying assembly 9 rotates simultaneously with the rotation of the mounting plate 8. The rotation of the mounting plate 8 drives the rotation of the first stirring rod 6 and the second stirring rod 30 through the connection of the first conveying assembly 7. The rotation of the first stirring rod 6, the second stirring rod 30 and the third stirring rod 31 fully mix the wastewater and the chemical agent in the tank body 1. S4. After the wastewater and the chemical agent are mixed, the mixed liquid is filtered by the filter plate 5 and the liquid is discharged from the liquid discharge pipe 2 to the outside of the pool body 1. The impurities blocked by the filter plate 5 slide on the inclined surface 18 with a higher left side and a lower right side, and the impurities slide to the outlet groove 19. Since the outlet groove 19 is set as an inclined surface with a higher back side and a lower front side, the impurities will move to the impurity discharge pipe 3, separating the sealing plug 15 from the impurity discharge pipe 3, and the impurities will be discharged from the impurity discharge pipe 3 to the outside of the pool body 1.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wastewater treatment system, comprising a tank body (1), characterized in that: A liquid discharge pipe (2) is fixedly mounted on the lower end of the right side of the pool body (1), a bottom plate (4) is fixedly mounted on the lower end of the pool body (1), an impurity discharge pipe (3) is fixedly connected to the right side of the front of the bottom plate (4), a filter plate (5) is movably connected to the right side of the inside of the pool body (1), a first stirring rod (6) is movably mounted inside the pool body (1), a second stirring rod (30) and a third stirring rod (31) are respectively provided on the front and rear sides of the first stirring rod (6), the front side of the upper end of the first stirring rod (6) is connected to the second stirring rod (30) through a first transmission component (7), and the first transmission component The upper end of the (7) is fixedly connected to a mounting plate (8), the end of the mounting plate (8) away from the first conveying assembly (7) is fixedly mounted with a second conveying assembly (9), and the lower end of the second conveying assembly (9) is fixedly mounted with a third stirring rod (31) located behind the first stirring rod (6), the first conveying assembly (7) and the second conveying assembly (9) are externally mounted with a box (10), the front and rear ends of the box (10) are fixedly mounted with rollers (11), the rollers (11) are movably mounted with side plates (14) through quick-release assemblies (12), and the lower ends of the side plates (14) are fixedly connected to the upper end of the pool body (1).

2. A wastewater treatment system according to claim 1, characterized in that: A sealing plug (15) is movably mounted on the front end of the impurity discharge pipe (3); the sealing plug (15) is rotatably connected to a connecting line (16) away from the outer side of the impurity discharge pipe (3); a sleeve (17) is fixedly mounted on the rear end of the connecting line (16); and the rear end of the sleeve (17) is fixedly connected to the front face of the tank body (1).

3. A wastewater treatment system according to claim 2, characterized in that: The upper end of the bottom plate (4) is provided with a slope (18) that is higher on the left and lower on the right. A guide groove (19) that is higher at the back and lower at the front is provided on the right side of the upper end of the slope (18). The front end of the guide groove (19) is internally connected to the rear end of the impurity discharge pipe (3). The upper end of the slope (18) is evenly provided with grooves (20) located below the filter plate (5). A support leg (13) is fixedly mounted on the lower end surface of the bottom plate (4).

4. A wastewater treatment system according to claim 3, characterized in that: A pull rod (21) is fixedly mounted on the upper end surface of the filter plate (5), protrusions (22) are evenly distributed on the lower end surface of the filter plate (5), and the outer wall of the protrusion (22) is movably engaged with the inner wall of the groove (20), and limiting blocks (23) are fixedly mounted on the front and rear sides of the filter plate (5), respectively, and the outer wall of the limiting block (23) away from one end of the filter plate (5) is movably engaged with the inner wall of the pool body (1).

5. A wastewater treatment system according to claim 1, characterized in that: The first conveying assembly (7) includes a first synchronous wheel (701), a first conveyor belt (702) and a second synchronous wheel (703), wherein the lower end of the first synchronous wheel (701) is fixedly connected to the upper end of the first stirring rod (6), the end of the first synchronous wheel (701) away from the first stirring rod (6) is fixedly connected to the lower end of the mounting plate (8), the outer wall of the first synchronous wheel (701) is movably connected to the inner wall of the rear end of the first conveyor belt (702), the inner wall of the front end of the first conveyor belt (702) is movably connected to the outer wall of the second synchronous wheel (703), and the lower end of the second synchronous wheel (703) is fixedly connected to the upper end of the second stirring rod (30).

6. A wastewater treatment system according to claim 3, characterized in that: The second conveying assembly (9) includes a third synchronous wheel (901), a second conveyor belt (902) and a second conveyor belt (902). The inner walls of the front and rear ends of the second conveyor belt (902) are movably connected to the outer walls of the third synchronous wheel (901) and the fourth synchronous wheel (903), respectively. The lower end of the fourth synchronous wheel (903) is fixedly connected to the upper end of the third stirring rod (31), and the lower end of the third synchronous wheel (901) is fixedly connected to the upper end of the mounting plate (8).

7. A wastewater treatment system according to claim 6, characterized in that: The upper end of the third synchronous wheel (901) is fixedly connected to a rotating shaft (24), an end of the rotating shaft (24) away from the third synchronous wheel (901) is fixedly mounted with a rotating motor (25), and a reducer is provided on the output shaft of the rotating motor (25), and a protective box (26) is fixedly mounted on the outside of the rotating motor (25), and heat dissipation holes (27) are evenly opened on the protective box (26), and the lower ends of the heat dissipation holes (27) are fixedly connected to the upper end surface of the box body (10).

8. A wastewater treatment system according to claim 7, characterized in that: A through hole (29) is formed in the middle of the roller (11), and the through hole (29) is movably connected to the quick-release assembly (12). An extension plate (28) is fixedly mounted on the upper end surface of the roller (11), and an end of the extension plate (28) away from the roller (11) is fixedly connected to the upper end surface of the box (10).

9. A wastewater treatment system according to claim 8, characterized in that: The quick-release assembly (12) includes an insert rod (121), a pull plate (122) and a spring (123). The outer wall of the insert rod (121) is movably connected to the inner wall of the spring (123). The outer end of the insert rod (121) is fixedly connected to the inner side of the pull plate (122). One end of the spring (123) is fixedly connected to the outer side of the side plate (14). The other end of the spring (123) is fixedly connected to the inner side of the pull plate (122). The outer wall of the insert rod (121) is movably connected to the inner wall of the side plate (14) and the through hole (29).

10. A wastewater treatment method using the wastewater treatment system according to claim 9, characterized in that: The following steps are involved: S1, adding the collected wastewater from the photovoltaic cell industry into the interior of the pool (1), and then adding chemical agents into the interior of the pool (1); S2. Install the corresponding number of first stirring rods (6), second stirring rods (30) and third stirring rods (31) according to actual needs, and use the roller (11) to roll in the side plate (14) to adjust the use position of a group of first stirring rods (6), second stirring rods (30) and third stirring rods (31). After the positions of a group of first stirring rods (6), second stirring rods (30) and third stirring rods (31) are determined, the quick-release assembly (12) is connected to the side plate (14) and the roller (11). By pulling the insertion rod (121) by the pull plate (122), the spring (123) is stretched, and then the insertion rod (121) is used to connect the roller (11) and the side plate (14), so that the use position of a group of first stirring rods (6), second stirring rods (30) and third stirring rods (31) can be positioned; S3. Turn on the power of the rotating motor (25). The turning on of the rotating motor (25) drives the rotation of the second conveying assembly (9) through the connection of the rotating shaft (24). The rotation of the second conveying assembly (9) drives the rotation of the third stirring rod (31). The second conveying assembly (9) rotates while the mounting plate (8) rotates. The mounting plate (8) rotates through the connection of the first conveying assembly (7) to drive the rotation of the first stirring rod (6) and the second stirring rod (30). The rotation of the first stirring rod (6), the second stirring rod (30) and the third stirring rod (31) fully mix the wastewater and the chemical agent in the pool body (1); S4. After the wastewater and the chemical agent are mixed, the mixed liquid is filtered by the filter plate (5) and the liquid is discharged from the liquid discharge pipe (2) to the outside of the pool body (1). The impurities blocked by the filter plate (5) slide on the inclined surface (18) with a higher left side and a lower right side, and the impurities slide to the outlet groove (19). Since the outlet groove (19) is set as an inclined surface with a higher back side and a lower front side, the impurities will move to the impurity discharge pipe (3), separate the sealing plug (15) from the impurity discharge pipe (3), and the impurities will be discharged from the impurity discharge pipe (3) to the outside of the pool body (1).

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