Anti-fouling and high-efficiency sedimentation tank system

Abstract

This utility model discloses a high-efficiency sedimentation tank system with anti-fouling properties, including a sedimentation tank body. Inside the sedimentation tank body, from the inlet to the outlet, there are sequentially arranged an inlet zone, a mixing reaction zone, a flocculation zone, a sedimentation zone, and an outlet zone. An inclined tube assembly is installed within the sedimentation zone, and pulse generators and flushing devices are arranged alternately above the inclined tube assembly. The pulse generator includes an air compressor, an air tank, a water tank, and a high-pressure water pump located outside the sedimentation zone, and several pulse tubes and several rotating nozzles located within the sedimentation zone. The flushing device includes a flushing pipe, nozzles, and a flushing pump. The flushing pipe is located above adjacent pulse tubes and is perpendicular to the pulse tubes. In this utility model, the pulse generators and flushing devices are arranged alternately. Through a combination of gas-liquid pulse impact and high-pressure water flushing, it can efficiently remove dirt from the surface of the inclined tube assembly, prevent clogging of the inclined tubes, ensure normal sedimentation effect in the sedimentation zone, and improve the treatment capacity and effluent quality of the sedimentation tank.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to a high-efficiency sedimentation tank system that prevents fouling and clogging. Background Technology

[0002] In wastewater treatment, high-efficiency sedimentation tanks are crucial equipment. They remove suspended solids and other impurities from wastewater through sedimentation, achieving solid-liquid separation and purifying the water. However, existing high-efficiency sedimentation tanks suffer from several problems during actual operation. Suspended solids and impurities in the wastewater easily accumulate in the inclined tubes and sludge discharge pipes of the sedimentation tank during sedimentation, causing blockages. Blockage in the inclined tubes severely affects the sedimentation effect, leading to poor effluent quality and excessive suspended solids. Blockage in the sludge discharge pipes prevents the normal discharge of sludge, affecting the normal operation of the sedimentation tank and potentially causing sludge fermentation within the tank, producing odors and further polluting the environment. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency sedimentation tank system that prevents clogging, in order to solve the problems of easy clogging and low treatment efficiency of existing high-efficiency sedimentation tanks.

[0004] To achieve the aforementioned objectives, the technical solution of this utility model is as follows:

[0005] A high-efficiency sedimentation tank system for preventing clogging includes a sedimentation tank body. Inside the sedimentation tank body, from the inlet to the outlet, there are sequentially arranged an inlet zone, a mixing reaction zone, a flocculation zone, a sedimentation zone, and an outlet zone. The inlet zone is connected to an inlet pipe, and the outlet zone is equipped with an outlet pipe. An inclined tube assembly is installed within the sedimentation zone. Above the inclined tube assembly, pulse generators and flushing devices are arranged at staggered intervals. The pulse generator includes an air compressor, an air storage tank, a water tank, and a high-pressure water pump located outside the sedimentation zone, and several pulse tubes and several rotating nozzles located within the sedimentation zone. The pulse tubes are arranged at intervals along the length of the sedimentation tank, and the rotating nozzles are arranged along the length of the pulse tubes. The nozzles are arranged at intervals along the direction of rotation, and the tilt angle of the rotating nozzles is the same as the tilt angle of the inclined tubes. One end of the air tank is connected to the air compressor, and the other end is connected to the pulse tube. One end of the high-pressure water pump is connected to the water tank, and the other end is connected to the pulse tube. The flushing device includes a flushing pipe, nozzles, and a flushing pump. One end of the flushing pump is connected to the water tank, and the other end is connected to the flushing pipe. The flushing pipe is located above the pulse tube and is perpendicular to the pulse tube. The nozzles are arranged at intervals along the length of the flushing pipe, and the tilt angle of the nozzles is smaller than the tilt angle of the rotating nozzles. The air compressor, high-pressure water pump, and flushing pump are electrically connected to an external control system.

[0006] Preferably, a sludge collection hopper is provided below the sedimentation zone, and a dredging device is provided inside the sludge collection hopper. The dredging device includes a horizontally arranged spiral conveyor shaft and a drive motor fixed to the end of the spiral conveyor shaft. The drive motor is located outside the sedimentation zone, and a sludge discharge pipe is provided at the outlet of the spiral conveyor shaft.

[0007] Preferably, a guide tube is provided in the flocculation zone. The guide tube has a cylindrical structure with an open bottom and a closed top, and is provided with several guide holes. A flocculation agitator is provided above the guide tube. The flocculation agitation zone includes a flocculation motor, a stirring shaft, and stirring blades. The flocculation motor is fixed at the top of the flocculation zone. The top of the stirring shaft is connected to the flocculation motor, and the lower end is inserted into the guide tube. The stirring blades are evenly distributed along the circumference of the stirring shaft.

[0008] Preferably, a scraper located inside the guide tube is vertically fixedly connected to the stirring shaft, and the upper end face of the scraper is in contact with the upper end face of the guide tube.

[0009] Preferably, the upper part of the flow guide tube is provided with multiple layers of baffles, with the upper and lower layers of baffles arranged alternately, and the shape of the baffles is stepped.

[0010] Preferably, an anti-clogging device is provided in the flocculation zone. The anti-clogging device includes a cylinder, a pressure plate, and saw teeth. The cylinder is vertically fixed at the top of the flocculation zone. The pressure plate is vertically fixed to the piston rod of the cylinder. The saw teeth are arranged along the horizontal direction of the pressure plate, and the saw teeth are arranged one-to-one with the guide holes.

[0011] Preferably, a groove is vertically provided on the inner wall of the flocculation zone, and a slider is fixedly connected to the pressure plate, with the slider slidingly connected to the groove.

[0012] Preferably, the mixing reaction zone is equipped with a stirring device and a dosing device. The stirring device includes a stirring motor and a stirring blade. The stirring motor is fixed to the top of the sedimentation tank body, and the stirring blade extends into the mixing reaction zone. The stirring motor drives the stirring blade to rotate. The dosing device includes a reagent storage tank, a metering pump, and a dosing pipeline. The reagent storage tank is connected to the mixing reaction zone through the metering pump and the dosing pipeline.

[0013] The beneficial effects of this utility model are:

[0014] 1. In this utility model, the pulse generator and the flushing device are arranged alternately. By combining gas-liquid pulse impact and high-pressure water flushing, the dirt on the surface of the inclined tube assembly can be efficiently removed, the inclined tube can be prevented from being blocked, the normal sedimentation effect of the sedimentation zone can be guaranteed, and the treatment capacity and effluent quality of the sedimentation tank can be improved.

[0015] 2. The unblocking device inside the sludge collection hopper can effectively prevent sludge from sticking and clogging, ensure smooth sludge discharge pipes, improve sludge discharge efficiency, and reduce manual maintenance costs.

[0016] 3. The wastewater in the guide tube is evenly dispersed into the flocculation zone through the guide holes. The baffle plate can prolong the residence time of the wastewater in the flocculation zone and enhance the flocculation effect; the scraper and saw teeth can prevent the guide holes from being blocked. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the pulse generator and the rinsing device.

[0019] In the picture:

[0020] 1. Sedimentation tank body; 11. Inlet zone; 111. Inlet pipe; 12. Mixing reaction zone; 13. Flocculation zone; 131. Baffle plate; 14. Sedimentation zone; 141. Inclined tube assembly; 15. Outlet zone; 151. Outlet pipe; 2. Anti-clogging device; 21. Cylinder; 22. Pressure plate; 23. Serrated edge; 24. Sliding block; 25. Slide groove; 3. Pulse generator; 31. Air compressor; 32. Air storage tank; 33. Water tank; 34. High-pressure water pump; 35. Pulse pipe; 36. Rotary nozzle; 4. 41. Flushing device; 42. Flushing pipe; 43. Nozzle; 44. Flushing pump; 5. Sludge collection hopper; 6. Unblocking device; 61. Screw conveyor shaft; 62. Drive motor; 7. Guide tube; 71. Guide hole; 8. Flocculation agitator; 81. Flocculation motor; 82. Agitator shaft; 83. Agitator blades; 84. Scraper; 9. Agitator; 91. Agitator motor; 92. Agitator blades; 10. Dosing device; 101. Chemical storage tank; 102. Metering pump; 103. Dosing pipeline. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0022] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] Example 1

[0024] like Figure 1As shown, a high-efficiency sedimentation tank system for preventing clogging includes a sedimentation tank body 1. Inside the sedimentation tank body 1, from the inlet end to the outlet end, there are sequentially arranged an inlet zone 11, a mixing reaction zone 12, a flocculation zone 13, a sedimentation zone 14, and an outlet zone 15. The inlet zone 11 is connected to an inlet pipe 111, and the outlet zone 15 is equipped with an outlet pipe 151. A control system is provided outside the sedimentation tank body 1.

[0025] like Figure 1 As shown, a stirring device 9 and a dosing device 10 are installed in the mixing reaction zone 12. The stirring device 9 includes a stirring motor 91 and a stirring blade 92. The stirring motor 91 is fixed to the top of the sedimentation tank body 1, and the stirring blade 92 extends into the mixing reaction zone 12. The stirring motor 91 drives the stirring blade 92 to rotate. The dosing device 10 is used to add coagulant and coagulant aid to the mixing reaction zone 12. The dosing device 10 includes a reagent storage tank 101, a metering pump 102, and a dosing pipeline 103. The reagent storage tank 101 is connected to the mixing reaction zone 12 through the metering pump 102 and the dosing pipeline 103.

[0026] like Figure 1 As shown, a guide tube 7 is installed within the flocculation zone 13. The guide tube 7 has a cylindrical structure with an open bottom and a closed top, and is equipped with several guide holes 71. A flocculation agitator 8 is installed above the guide tube 7. The flocculation agitation zone includes a flocculation motor 81, a stirring shaft 82, and stirring blades 83. The flocculation motor 81 is fixed to the top of the flocculation zone 13. The top of the stirring shaft 82 is connected to the flocculation motor 81, and the lower end extends into the guide tube 7. The stirring blades 83 are evenly distributed along the circumference of the stirring shaft 82. A scraper 84 located inside the guide tube 7 is vertically fixed to the stirring shaft 82, and the upper end face of the scraper 84 contacts the upper end face of the guide tube 7. A multi-layer baffle plate 131 is installed above the guide tube 7. The upper and lower layers of baffle plates 131 are arranged alternately, and the shape of the baffle plates 131 is stepped.

[0027] like Figure 1 As shown, an anti-blocking device 2 is installed in the flocculation zone 13. The anti-blocking device 2 includes a cylinder 21, a pressure plate 22, and saw teeth 23. The cylinder 21 is vertically fixed to the top of the flocculation zone 13. The pressure plate 22 is vertically fixed to the piston rod of the cylinder 21. The saw teeth 23 are arranged along the horizontal direction of the pressure plate 22, and each saw tooth 23 corresponds to a guide hole 71. A sliding groove 25 is vertically formed on the inner side wall of the flocculation zone 13. A slider 24 is fixedly connected to the pressure plate 22, and the slider 24 is slidably connected to the sliding groove 25.

[0028] like Figure 1 and Figure 2As shown, a slanted tube assembly 141 is installed in the sedimentation zone 14. A pulse generator 3 and a flushing device 4 are arranged alternately above the slanted tube assembly 141. The pulse generator 3 includes an air compressor 31, an air tank 32, a water tank 33, a high-pressure water pump 34, several pulse tubes 35, and several rotating nozzles 36. The air compressor 31, air tank 32, water tank 33, and high-pressure water pump 34 are located outside the sedimentation zone 14. The pulse tubes 35 are located above the slanted tube assembly 141 and are arranged at intervals along the length of the sedimentation zone 14. The rotating nozzles 36 are evenly spaced along the length of the pulse tubes 35, and the tilt angle of the rotating nozzles 36 is consistent with the tilt angle of the slanted tube assembly 141. The spray direction is directed towards the surface of the slanted tube, ensuring that the pulse impact force acts on the dirt along the tilt direction of the slanted tube assembly 141, conforming to the structure of the slanted tube assembly 141, and reducing the lateral impact force on the packing. One end of the air storage tank 32 is connected to the air compressor 31, and the other end is connected to the pulse tube 35. One end of the high-pressure water pump 34 is connected to the water tank 33, and the other end is connected to the pulse tube 35.

[0029] like Figure 1 and Figure 2 As shown, the rinsing device 4 includes a rinsing pipe 41, nozzles 42, and a rinsing pump 43. One end of the rinsing pump 43 is connected to the water tank 33, and the other end is connected to the rinsing pipe 41. The rinsing pipe 41 is located above the pulse pipe 35 and is perpendicular to the pulse pipe 35. The nozzles 42 are evenly spaced along the length of the rinsing pipe 41, and the tilt angle of the nozzles 42 is smaller than the tilt angle of the inclined tube assembly 141. The spray direction forms a 10° angle with the surface of the inclined tube assembly 141, ensuring that the rinsing water flows downward along the inclined tube assembly 141 and carries away the dirt loosened by the pulse, rather than splashing in the opposite direction.

[0030] like Figure 1 As shown, a sludge collection hopper 5 is provided below the sedimentation zone 14. A dredging device 6 is provided inside the sludge collection hopper 5. The dredging device 6 includes a screw conveyor shaft 61 and a drive motor 62 fixed to the end of the screw conveyor shaft 61. The drive motor 62 is located outside the sedimentation zone 14. A sludge discharge pipe is provided at the outlet of the screw conveyor shaft 61.

[0031] A control system is installed outside the sedimentation tank body 1. An air compressor 31, a high-pressure water pump 34, a flushing pump 43, a drive motor 62, a flocculation motor 81, a cylinder 21, a stirring motor 91, and a metering pump 102 are electrically connected to the control system.

[0032] In summary,

[0033] The wastewater to be treated enters the inlet zone 11 through the inlet pipe 111 and then flows into the mixing reaction zone 12. In the mixing reaction zone 12, the stirring motor 91 drives the stirring blades 92 to rotate, so that the wastewater and the coagulant and coagulant aid added by the dosing device 10 are fully mixed and reacted to form tiny flocs.

[0034] After mixing and reaction, the wastewater flows into the flocculation zone 13. The flocculation motor 81 drives the stirring shaft 82 and stirring blades 83 to rotate, further promoting the growth and aggregation of flocs. The wastewater flows inside the guide tube 7 and enters other parts of the flocculation zone 13 through the guide hole 71. The scraper 84 scrapes away the flocs on the top of the guide tube 7 as the stirring shaft 82 rotates, preventing them from clogging the guide hole 71. The baffle plate 131 changes the direction of water flow, prolonging the residence time of the water in the flocculation zone 13 and enhancing the flocculation effect. When the guide hole 71 becomes blocked, the cylinder 21 pushes the pressure plate 22 downward, and the saw teeth 23 insert into the guide hole 71 to clear the blockage.

[0035] After flocculation, the wastewater enters the sedimentation zone 14. Under the action of the inclined tube assembly 141, the flocs and impurities settle to the bottom of the sedimentation zone 14, while the clear water rises and is discharged from the outlet pipe 151 of the outlet zone 15. During the sedimentation process, the pulse generator 3 and the flushing device 4 can be activated by the external control system according to the blockage of the inclined tube assembly 141. The air compressor 31 compresses and stores air in the air storage tank 32. The high-pressure water pump 34 pressurizes the water in the water tank 33 and mixes it with the compressed air in the pulse pipe 35. The mixture is then sprayed out through the rotating nozzle 36 to form a gas-liquid pulse, which impacts and cleans the inclined tube assembly 141. The flushing pump 43 pressurizes the water in the water tank 33 and sprays it out through the flushing pipe 41 and the nozzle 42 to further flush the inclined tube assembly 141, ensuring that the surface of the inclined tube assembly 141 is clean and preventing blockage.

[0036] The sludge at the bottom of the sedimentation zone 14 enters the sludge collection hopper 5 under the action of gravity. The drive motor 62 drives the screw conveyor shaft 61 to rotate, discharging the sludge from the sludge discharge pipe, while preventing the sludge from sticking and clogging the sludge discharge pipe.

[0037] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A high-efficiency sedimentation tank system for preventing fouling and clogging, comprising a sedimentation tank body, characterized in that, The sedimentation tank is equipped with an inlet zone, a mixing and reaction zone, a flocculation zone, a sedimentation zone and an outlet zone, arranged sequentially from the inlet end to the outlet end. The inlet zone is connected to the inlet pipe, and the outlet zone is equipped with an outlet pipe. An inclined tube assembly is provided in the sedimentation zone, and pulse generators and rinsing devices are arranged alternately above the inclined tube assembly. The pulse generator includes an air compressor, an air tank, a water tank, and a high-pressure water pump located outside the sedimentation zone, as well as several pulse tubes and several rotating nozzles located inside the sedimentation zone. The pulse tubes are arranged at intervals along the length of the sedimentation tank, and the rotating nozzles are arranged at intervals along the length of the pulse tubes. The tilt angle of the rotating nozzles is the same as the tilt angle of the inclined tubes. One end of the air tank is connected to the air compressor, and the other end is connected to the pulse tube. One end of the high-pressure water pump is connected to the water tank, and the other end is connected to the pulse tube. The flushing device includes a flushing pipe, nozzles, and a flushing pump. One end of the flushing pump is connected to a water tank, and the other end is connected to the flushing pipe. The flushing pipe is located above the pulse tube and is perpendicular to the pulse tube. The nozzles are arranged at intervals along the length of the flushing pipe, and the nozzle tilt angle is smaller than the tilt angle of the rotating nozzle. The air compressor, high-pressure water pump, and flushing pump are electrically connected to the external control system.

2. The anti-fouling and high-efficiency sedimentation tank system according to claim 1, characterized in that, A sludge collection hopper is installed below the sedimentation zone. A dredging device is installed inside the sludge collection hopper. The dredging device includes a horizontally arranged spiral conveyor shaft and a drive motor fixed to the end of the spiral conveyor shaft. The drive motor is located outside the sedimentation zone and is electrically connected to an external control system. A sludge discharge pipe is installed at the outlet of the spiral conveyor shaft.

3. The anti-fouling and high-efficiency sedimentation tank system according to claim 2, characterized in that, A guide tube is provided in the flocculation zone. The guide tube is a cylindrical structure with an open bottom and a closed top, and is provided with several guide holes. A flocculation agitator is installed above the guide tube. The flocculation zone includes a flocculation motor, a stirring shaft, and stirring blades. The flocculation motor is fixed at the top of the flocculation zone and is electrically connected to the control system. The top of the stirring shaft is connected to the flocculation motor, and the lower end is inserted into the guide tube. The stirring blades are evenly distributed along the circumference of the stirring shaft.

4. The anti-fouling and high-efficiency sedimentation tank system according to claim 3, characterized in that, A scraper located inside the guide tube is vertically fixed to the stirring shaft, and the upper end face of the scraper is in contact with the upper end face of the guide tube.

5. The anti-fouling and high-efficiency sedimentation tank system according to claim 4, characterized in that, The upper part of the flow guide tube is provided with multiple layers of baffles, with the upper and lower layers of baffles arranged alternately, and the shape of the baffles is stepped.

6. The anti-fouling and high-efficiency sedimentation tank system according to claim 4, characterized in that, An anti-clogging device is installed in the flocculation zone. The anti-clogging device includes a cylinder, a pressure plate, and saw teeth. The cylinder is vertically fixed at the top of the flocculation zone and electrically connected to the control system. The pressure plate is vertically fixed to the piston rod of the cylinder. The saw teeth are arranged along the horizontal direction of the pressure plate, and the saw teeth are set one-to-one with the guide holes.

7. The anti-fouling and high-efficiency sedimentation tank system according to claim 6, characterized in that, A vertical groove is provided on the inner wall of the flocculation zone, and a slider is fixedly connected to the pressure plate, with the slider slidingly connected to the groove.

8. The anti-fouling and high-efficiency sedimentation tank system according to claim 1, characterized in that, The mixing reaction zone is equipped with a stirring device and a dosing device. The stirring device includes a stirring motor and a stirring blade. The stirring motor is fixed to the top of the sedimentation tank body, and the stirring blade extends into the mixing reaction zone. The stirring motor drives the stirring blade to rotate. The dosing device includes a reagent storage tank, a metering pump, and a dosing pipeline. The reagent storage tank is connected to the mixing reaction zone through the metering pump and the dosing pipeline.

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