Automatic flocculation screen removing device for sewage

Abstract

The application discloses an automatic flocculation screen removal device for sewage and an implementation method thereof, and belongs to the technical field of sewage treatment. The application is provided with a separation tank, the separation tank is provided with a separation disc, the separation disc is uniformly provided with screening grooves inside, and dirt in water in the separation tank can be separated along with rotation of the separation disc. The separated clean water flows into other places for storage. The separation tank bottom is further provided with an aeration pipeline, the upper portion of the separation tank is further fixedly connected with a sludge pipeline, the aeration pipeline is connected with an air compressor at the tail end, and the aeration pipeline is further fixedly connected with an aeration assembly on one side. The aeration assembly can form tiny air bubbles by compressed air generated by the air compressor, the tiny air bubbles are combined with separated dirt and float upwards, and the separated dirt is discharged from the separation tank through the sludge pipeline, so that the sewage treatment effect and efficiency are improved.

Description

Technical Field

[0001] This invention is an automatic flocculation and screening device for wastewater, belonging to the technical field of wastewater treatment. Background Technology

[0002] During the wastewater treatment process, a large amount of excrement, shed biofilm, algae, debris and other solid pollutants are continuously generated in the wastewater. These substances enter the wastewater treatment system, resulting in high concentration of suspended solids, high organic load and high turbidity in the wastewater. By mixing chemical flocculants through a stirring mechanism, the suspended solids are precipitated in the treatment tank and then discharged after further filtration by a filtration mechanism.

[0003] However, the flocculated sediment in the sewage treatment tank requires manual cleaning after regular shutdowns, making it impossible for the sewage treatment system to operate automatically and continuously. This increases maintenance costs and time consumption. At the same time, the filter cloth used to filter the flocculated sediment in the sewage treatment tank is prone to clogging, leading to increased effluent resistance in the sewage treatment tank. This necessitates frequent replacement or cleaning of the filter cloth, affecting the long-term stability of the equipment and causing unstable sewage treatment results. To address these issues, some people in the art have developed an automatic sewage flocculation and screening device to overcome the problems mentioned above. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic flocculation and screening device for sewage in order to address the above-mentioned shortcomings. The present invention can automatically screen and separate flocs in sewage, and can also screen out the screened flocs, thereby improving the sewage treatment efficiency and effect and enhancing the stability of sewage treatment operation.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: An automatic flocculation and screening device for wastewater includes a separation tank. An inlet pipe is connected to the upper part of the separation tank, and an inlet valve is installed on the inlet pipe. A separation motor is fixedly connected to the outer surface of the separation tank. A drive gear is fixedly connected to the end of the drive shaft of the separation motor, and the drive gear is located inside the separation tank. A separation shaft is also located at the center of the separation tank. A rotating gear is fixedly connected to the upper end of the separation shaft. Both the drive gear and the rotating gear are conical and mesh with each other through their teeth. The separation shaft is hollow inside, and a separation disc is uniformly fixed to its outer surface. Screening grooves are uniformly formed inside the separation discs. The screening grooves are spiral-shaped, with the same spiral direction and facing the separation shaft. The screening grooves are connected to the hollow separation shaft. A clean water pipe is connected to the lower end of the separation shaft. A mechanical seal is provided at the connection between the separation shaft and the clean water pipe. The clean water pipe extends outside the separation tank and is equipped with a clean water filter and a connecting valve. The end of the clean water pipe is connected to a clean water tank. A level gauge is also installed at the bottom of the separation tank. An aeration pipe is also laid at the bottom of the separation tank, and aeration structures are uniformly distributed on one side of the aeration pipe at the bottom of the separation tank.

[0006] Furthermore, a flocculation pipe is connected above the separation tank, and a flocculation valve is installed on the flocculation pipe.

[0007] Furthermore, an air compressor is connected to the end of the aeration pipe, and an aeration valve is also installed on the aeration pipe. The air compressor and the aeration valve are located outside the separation tank.

[0008] Furthermore, the aeration structure includes an aeration column, which is hollow inside. The aeration column and the aeration pipe are placed vertically, and a self-sealing column is provided at their intersection. The self-sealing column is hollow inside, with one end open and the other end closed. The open end of the self-sealing column is connected to the aeration pipe. An aeration column is fixed above the self-sealing column. The aeration column is hollow and communicates with the hollow interior of the self-sealing column. A self-sealing disc and a spring are also provided inside the hollow self-sealing column.

[0009] Furthermore, the aeration column is also equipped with a bearing, which is fixed to the lower inner surface of the aeration column by a connecting rod. The bearing is equipped with a central shaft, and an impeller disk is fixed to the lower part of the central shaft. Spiral blades are distributed on the surface of the impeller disk.

[0010] Furthermore, a steering assembly is provided at the outlet of the aeration column. The steering assembly includes a reverse shaft, which is located on the surface of the central shaft. A first bevel gear is also provided on the surface of the central shaft, and a second bevel gear is fixedly connected to the lower part of the reverse shaft.

[0011] Furthermore, a fixing rod is fixedly connected to the inner wall of the aeration column, and a third bevel gear is provided at the end of the fixing rod. The third bevel gear can rotate at the end of the fixing rod. The first bevel gear, the second bevel gear and the third bevel gear are placed vertically and mesh with each other through their teeth. Air flotation nets are also fixedly connected to the surfaces of the central shaft and the reverse shaft.

[0012] Furthermore, the separator is also equipped with a spiral disc, which floats on the water surface of the separator, and the diameter of the spiral disc is the same as the inner diameter of the separator.

[0013] Furthermore, a photoelectric switch is fixed to the upper surface of the spiral disc center, a funnel is connected to the lower part of the spiral disc center, a sludge pipe is fixed to the upper part of the separation tank, the sludge pipe is under negative pressure, a sludge valve is also installed on the sludge pipe, and the sludge pipe is connected to the hopper discharge port through a flexible hose.

[0014] Furthermore, a disinfection pipe is fixedly connected to the upper part of the clean water tank, and a disinfection valve is installed on the disinfection pipe. A clean water tank level gauge is also installed at the bottom of the clean water tank, and a water outlet pipe is also connected to the bottom of the clean water tank. A water outlet motor is also installed on the water outlet pipe.

[0015] The present invention adopts the above technical solution and has the following technical effects compared with the prior art: 1. The present invention includes a separation tank, inside which is a separation shaft. The separation shaft is hollow inside, and a separation disc is uniformly fixed to the outer surface of the separation shaft. Screening grooves are uniformly distributed inside the separation disc. As the separation disc and the screening grooves rotate, solid and water in the separation tank can be separated, thereby improving the stability of sewage treatment operation.

[0016] 2. The bottom of the separation tank of the present invention is also provided with an aeration pipe, and a sludge pipe is also fixedly connected to the upper part of the separation tank. An air compressor is connected to the end of the aeration pipe, and an aeration valve is also provided on the aeration pipe. An aeration component is also fixedly connected to one side of the aeration pipe. The aeration component can form tiny bubbles from the compressed air generated by the air compressor, which combine with the flocculated dirt in the separation tank and float to the surface, and are discharged from the separation tank through the sludge pipe, thereby improving the wastewater treatment efficiency and treatment effect. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale and orientation.

[0018] Figure 1 This is a schematic diagram of the structural connection of the present invention; Figure 2 This is a cross-sectional view of the connection between the separating shaft and the separating disk structure of the present invention; Figure 3 This is a schematic diagram showing the connection between the aeration structure and the aeration pipe structure of the present invention; Figure 4 This is a top view schematic diagram of the connection between the separation tank, sludge pipe and spiral disc structure of the present invention.

[0019] In the diagram: 1-Inlet pipe, 2-Inlet valve, 3-Rotating gear, 4-Flocculation pipe, 5-Drive gear, 6-Outlet pipe, 7-Screening groove, 8-Function funnel, 9-Clear water filter screen, 10-Flocculation valve, 11-Separation tank, 12-Separation motor, 13-Sludge pipe, 14-Separation shaft, 15-Separation disc, 16-Spiral disc, 17-Air flotation screen, 18-Air compressor, 19-Aeration pipe, 20-Aeration valve, 21-Aeration structure, 22-Mechanical seal, 23- 24-Clear water pipe, 25-Disinfection pipe, 26-Disinfection valve, 27-Outlet motor, 28-Sludge valve, 29-Photoelectric switch, 30-Separation tank level gauge, 31-Clear water tank level gauge, 32-Connecting valve, 33-Reverse shaft, 34-Aeration column, 35-Self-sealing column, 36-Self-sealing disc, 37-Bearing, 38-Fixed rod, 39-Impeller disc, 40-Second bevel gear, 41-Third bevel gear, 42-Central shaft, 43-First bevel gear. Detailed Implementation

[0020] like Figure 1 and Figure 2 As shown, an automatic flocculation and screening device for wastewater includes a separation tank 11. An inlet pipe 1 is connected to the upper part of the separation tank 11, and an inlet valve 2 is installed on the inlet pipe 1. A separation motor 12 is fixedly connected to the outer surface of the separation tank 11. A drive gear 5 is fixedly connected to the end of the drive shaft of the separation motor 12, and the drive gear 5 is located inside the separation tank 11. A separation shaft 14 is also provided at the center inside the separation tank 11. A rotating gear 3 is fixedly connected to the upper end of the separation shaft 14. Both the drive gear 5 and the rotating gear 3 are conical and mesh with each other through teeth. The separation shaft 14 is hollow inside, and separation discs are uniformly fixed to its outer surface. 15. The separation disc 15 has uniformly distributed screening grooves 7 inside. The screening grooves 7 are spiral in shape, with the same spiral direction and facing the separation shaft 14. The screening grooves 7 are hollowly connected to the separation shaft 14. The lower end of the separation shaft 14 is connected to a clean water pipe 23. A mechanical seal 22 is provided at the connection between the separation shaft 14 and the clean water pipe 23. The clean water pipe 23 extends out of the separation tank 11. A clean water filter screen 9 and a connecting valve 32 are also provided on the clean water pipe 23. The end of the clean water pipe 23 is connected to a clean water tank 24. A separation tank level gauge 30 is also provided at the bottom of the separation tank 11. The separation tank level gauge 30 is used to detect the liquid level of the sewage in the separation tank 11.

[0021] The separation tank 11 is also connected to a flocculation pipe 4, which is equipped with a flocculation valve 10. The flocculation valve 10 is used to add flocculant to the separation tank 11 at regular intervals. The flocculant neutralizes and captures the suspended particles in the separation tank 11, causing the dispersed particles to agglomerate.

[0022] Wastewater is collected in the separator 11 through the inlet pipe 1. When the wastewater level in the separator 11 reaches the set level, the separator motor 12 starts and the connecting valve 32 opens, driving the separator shaft 14 and separator disc 15 to rotate. The wastewater in the separator 11 is neutralized and coagulated by the flocculant to form dirt, which then rotates with the separator disc 15. Due to the different centripetal forces of water and dirt, clean water enters the separator shaft 14 through the screening groove 7 of the separator disc 15, is further filtered by the clean water filter screen 9, and then flows into the clean water tank 24 for storage. The separated dirt remains in the separator 11.

[0023] The bottom of the separator 11 is also provided with an aeration pipe 19, and an air compressor 18 is connected to the end of the aeration pipe 19. An aeration valve 20 is also provided on the aeration pipe 19. The air compressor 18 and the aeration valve 20 are located outside the separator 11. Aeration structures 21 are also evenly distributed on one side of the aeration pipe 19 at the bottom of the separator 11.

[0024] like Figure 1 and Figure 3As shown, the aeration structure 21 includes an aeration column 34, which is hollow inside. The aeration column 34 and the aeration pipe 19 are placed vertically, and a self-sealing column 35 is provided at their intersection. The self-sealing column 35 is hollow inside, with one end open and the other end closed. The open end of the self-sealing column 35 is connected to the aeration pipe 19. An aeration column 34 is fixed above the self-sealing column 35. The aeration column 34 is hollow and communicates with the hollow interior of the self-sealing column 35. A self-sealing disc 36 and a spring are also provided inside the hollow self-sealing column 35. Normally, the self-sealing disc 36 extends into the aeration pipe 19 under the action of the spring, sealing the air outlet of the aeration pipe 19.

[0025] The aeration column 34 is also equipped with a bearing 37, which is fixed to the lower inner surface of the aeration column 34 by a connecting rod. The bearing 37 is equipped with a central shaft 42, and the lower part of the central shaft 42 is also fixed to an impeller disk 39. The surface of the impeller disk 39 is distributed with spiral blades.

[0026] The outlet of the aeration column 34 is also provided with a steering assembly, which includes a reverse shaft 33. The reverse shaft 33 is located on the surface of the central shaft 42 and can rotate on the surface of the central shaft 42. The surface of the central shaft 42 is also provided with a first bevel gear 43. A second bevel gear 40 is fixedly connected to the lower part of the reverse shaft 33. A fixed rod 38 is also fixedly connected to the inner wall of the aeration column 34. A third bevel gear 41 is also provided at the end of the fixed rod 38. The third bevel gear 41 can rotate at the end of the fixed rod 38. The first bevel gear 43, the second bevel gear 40 and the third bevel gear 41 are placed vertically and mesh with each other through teeth. An air flotation net 17 is also fixedly connected to the surface of the central shaft 42 and the reverse shaft 33.

[0027] When the separation motor 12 is turned on, the air compressor 18 and the aeration valve 20 are simultaneously opened. The generated compressed air pushes the sealing disc 36 away from the outlet of the aeration pipe 19 and enters the aeration column 34. The compressed air is then ejected from the aeration column 34, forming an upward rapid airflow that drives the impeller disc 39 to rotate. The rotation of the impeller disc 39 drives the central shaft 42 to rotate, which in turn drives the first bevel gear 43 to rotate. Then, through the third bevel gear 41, the second bevel gear 40 rotates in the opposite direction. The reverse rotation of the second bevel gear 40... The rotation causes the reverse shaft 33 to rotate in the opposite direction relative to the central shaft 42, thereby achieving the opposite rotation of the air flotation net 17 on the surface of the reverse shaft 33 and the central shaft 42. Compressed air is cut by the air flotation net 17 in both directions, forming upward microbubbles. The dirt separated in the separation tank 11 combines with the microbubbles and floats upward to the surface of the water in the separation tank 11. When the air compressor 18 and the aeration valve 20 are closed, the air pressure disappears, and the self-sealing disc 36 is reset under the action of the spring, preventing the water in the separation tank 11 from entering the aeration pipe 19.

[0028] like Figure 1 and Figure 4As shown, the separator 11 is also equipped with a spiral disc 16, which floats on the water surface of the separator 11. The diameter of the spiral disc 16 is the same as the inner diameter of the separator 11. A photoelectric switch 29 is fixedly connected to the upper surface of the center of the spiral disc 16. A funnel 8 is connected to the lower part of the center of the spiral disc 16. A sludge pipe 13 is also fixedly connected to the upper part of the separator 11. The sludge pipe 13 is under negative pressure. A sludge valve 28 is also provided on the sludge pipe 13. The sludge pipe 13 is connected to the discharge port of the funnel 8 through a flexible hose.

[0029] When the separation motor 12 rotates, the dirt floating on the water surface rotates in the water body. Following the rotation direction of the spiral disk 16, the dirt moves towards the feed inlet of the central funnel 8 of the spiral disk 16. When the photoelectric switch 29 detects that the dirt has reached this point, the sludge valve 28 opens, and the dirt floating on the water surface is sucked into the sludge pipe 13 and discharged from the separation tank 11.

[0030] The upper part of the clean water tank 24 is fixedly connected to a disinfection pipe 25, and a disinfection valve 26 is provided on the disinfection pipe 25. The disinfection valve 26 is used to close and open the disinfection pipe 25 and add disinfectant into the clean water tank 24. A clean water tank level gauge 31 is also provided at the bottom of the clean water tank 24. The clean water tank level gauge 31 is used to detect the liquid level in the clean water tank 24. A water outlet pipe 6 is also connected to the bottom of the clean water tank 24. A water outlet motor 27 is provided on the water outlet pipe 6. The water outlet motor 27 is used to pump clean water out of the clean water tank 24. When the water level in the clean water tank 24 reaches the set height, the water outlet motor 27 starts and pumps the water in the clean water tank 24 to the next sewage treatment process.

[0031] The description of this invention is provided for illustrative purposes and is not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An automatic wastewater flocculation and screening device, characterized in that: The system includes a separation tank (11), with an inlet pipe (1) connected to the upper part of the separation tank (11). An inlet valve (2) is provided on the inlet pipe (1). A separation motor (12) is fixedly connected to the outer surface of the separation tank (11). A drive gear (5) is fixedly connected to the end of the drive shaft of the separation motor (12). The drive gear (5) is located inside the separation tank (11). A separation shaft (14) is also provided in the center of the separation tank (11). A rotating gear (3) is fixedly connected to the upper end of the separation shaft (14). The drive gear (5) and the rotating gear (3) are both conical. The drive gear (5) and the rotating gear (3) mesh with each other through teeth. The separation shaft (14) is hollow inside. A separation disc (15) is uniformly fixedly connected to the outer surface of the separation shaft (14). Screening grooves (7) are uniformly opened inside the separation disc (15). The screening groove (7) is spiral in shape, with the same direction of rotation and facing the separation shaft (14). The screening groove (7) and the separation shaft (14) are hollow and connected. The lower end of the separation shaft (14) is connected to a clean water pipe (23). A mechanical seal (22) is provided at the connection between the separation shaft (14) and the clean water pipe (23). The clean water pipe (23) extends out of the separation tank (11). A clean water filter screen (9) and a connecting valve (32) are also provided on the clean water pipe (23). A clean water tank (24) is connected to the end of the clean water pipe (23). A separation tank level gauge (30) is also provided at the bottom of the separation tank (11). An aeration pipe (19) is also laid at the bottom of the separation tank (11). An aeration structure (21) is also evenly distributed on one side of the aeration pipe (19) at the bottom of the separation tank (11).

2. The automatic wastewater flocculation and screening device as described in claim 1, characterized in that: The separation tank (11) is also connected to a flocculation pipe (4), and a flocculation valve (10) is provided on the flocculation pipe (4).

3. The automatic wastewater flocculation and screening device as described in claim 1, characterized in that: An air compressor (18) is connected to the end of the aeration pipe (19), and an aeration valve (20) is also provided on the aeration pipe (19). The air compressor (18) and the aeration valve (20) are located outside the separator (11).

4. The automatic flocculation and screening device for wastewater as described in claim 1, characterized in that: The aeration structure (21) includes an aeration column (34), which is hollow inside. The aeration column (34) and the aeration pipe (19) are placed vertically, and a self-sealing column (35) is provided at the intersection of the two. The self-sealing column (35) is hollow inside, and one end of the self-sealing column (35) is open and the other end is closed. The open end of the self-sealing column (35) is connected to the aeration pipe (19). An aeration column (34) is fixed above the self-sealing column (35). The aeration column (34) is hollow and communicates with the hollow inside of the self-sealing column (35). A self-sealing disc (36) and a spring are also provided inside the hollow self-sealing column (35).

5. The automatic wastewater flocculation and screening device as described in claim 4, characterized in that: The aeration column (34) is also provided with a bearing (37), which is fixed to the lower inner surface of the aeration column (34) by a connecting rod. The bearing (37) is provided with a central shaft (42), and an impeller disk (39) is fixed to the lower part of the central shaft (42). Spiral blades are distributed on the surface of the impeller disk (39).

6. The automatic wastewater flocculation and screening device as described in claim 5, characterized in that: The outlet of the aeration column (34) is also provided with a steering component, which includes a reverse shaft (33). The reverse shaft (33) is located on the surface of the central shaft (42). The surface of the central shaft (42) is also provided with a first bevel gear (43). A second bevel gear (40) is fixedly connected to the lower part of the reverse shaft (45).

7. The automatic wastewater flocculation and screening device as described in claim 6, characterized in that: A fixed rod (38) is also fixedly connected to the inner wall of the aeration column (34). A third bevel gear (41) is also provided at the end of the fixed rod (38). The third bevel gear (41) can rotate at the end of the fixed rod (38). The first bevel gear (43), the second bevel gear (40) and the third bevel gear (41) are placed vertically and mesh with each other through their teeth. An air flotation net (17) is also fixedly connected to the surface of the central shaft (42) and the reverse shaft (45).

8. The automatic wastewater flocculation and screening device as described in claim 1, characterized in that: The separator (11) is also equipped with a spiral disk (16), which floats on the water surface of the separator (11), and the diameter of the spiral disk (16) is the same as the inner diameter of the separator (11).

9. The automatic wastewater flocculation and screening device as described in claim 8, characterized in that: A photoelectric switch (29) is fixedly attached to the upper surface of the center of the spiral disc (16). A funnel (8) is connected to the lower part of the center of the spiral disc (16). A sludge pipe (13) is also fixedly attached to the upper part of the separation tank (11). The sludge pipe (13) is under negative pressure. A sludge valve (28) is also provided on the sludge pipe (13). The sludge pipe (13) and the discharge port of the funnel (8) are connected by a flexible hose.

10. The automatic wastewater flocculation and screening device as described in claim 1, characterized in that: The upper part of the clean water tank (24) is fixed with a disinfection pipe (25), and a disinfection valve (26) is provided on the disinfection pipe (25). The bottom of the clean water tank (24) is also provided with a clean water tank level gauge (31). The bottom of the clean water tank (24) is also connected with a water outlet pipe (6), and a water outlet motor (27) is also provided on the water outlet pipe (6).

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