Aeration stirring device for sewage treatment

Abstract

The utility model provides an aeration stirring device for sewage treatment belongs to sewage treatment equipment technical field, including the stirring motor of sewage treatment jar outer bottom fixed setting, the stirring shaft of sewage treatment jar in and stirring motor rotation connection, the tank cover of sewage treatment jar top open and close setting, a plurality of stirring subassembly is detachably established to the stirring shaft surface, the cavity is equipped with aeration pipe along its axial direction in the stirring shaft middle part, is equipped with a plurality of with the opening of cavity intercommunication on the shaft wall of stirring shaft, is provided with air compressor on the tank cover, the utility model discloses through the cavity on the stirring shaft and hollow external thread and opening intercommunication, make compressed gas through the vent of stirring rod and from the opening of stirring shaft and discharge, at this moment, the aeration pipe will be protected by the main body of the shaft when aeration, so that the plugging probability of the micropore on the aeration pipe can be reduced, and the centrifugal force generated by the rotation of the shaft body can shake off the impurities attached to the aeration port to a certain extent, thereby reducing the maintenance frequency.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment equipment, specifically to an aeration and stirring device for sewage treatment. Background Technology

[0002] The development of aeration and mixing devices for wastewater treatment stems from the need for efficient mass transfer and mixing in the activated sludge process. This equipment maintains the suspension of activated sludge by aeration and mixing in the wastewater tank, thereby promoting nitrogen and phosphorus removal.

[0003] In related technologies, by installing a stirring motor at the bottom of the sewage treatment tank and a stirring paddle inside the tank, and connecting the stirring paddle to the stirring motor, the liquid in the sewage tank is stirred. In conjunction with the aeration pipes installed at the bottom of the sewage tank, the stirred sewage is aerated, thereby improving the sewage treatment effect.

[0004] Currently, most aeration pipes are fixedly installed at the bottom of sewage treatment tanks. The micropores on the surface of the aeration pipes are prone to clogging after aeration and operation, requiring frequent mechanical aeration maintenance, which makes them inconvenient to use. To solve the above problems, an aeration and stirring device for sewage treatment is proposed. Utility Model Content

[0005] In view of this, the present invention provides an aeration and stirring device for sewage treatment. The present invention drives the stirring shaft to rotate through the stirring motor. The cavity on the stirring shaft is connected to the hollow external stud and the opening, so that the compressed gas is discharged through the air port on the stirring rod and the opening on the stirring shaft. At this time, the aeration pipe is protected by the main body of the shaft during aeration, thereby reducing the probability of blockage of the micropores on the aeration pipe. At the same time, the centrifugal force generated by the rotation of the shaft can, to a certain extent, throw off the impurities attached to the aeration port, reducing the maintenance frequency.

[0006] To solve the above-mentioned technical problems, this utility model provides an aeration and stirring device for sewage treatment, including a stirring motor fixedly installed at the bottom of the sewage treatment tank, a stirring shaft rotatably connected to the stirring motor inside the sewage treatment tank, a tank cover that can be opened and closed at the top of the sewage treatment tank, multiple stirring components detachably installed on the surface of the stirring shaft, a cavity provided along the axial direction in the middle of the stirring shaft, an aeration pipe installed in the cavity, multiple openings communicating with the cavity through the shaft wall of the stirring shaft, the openings being located between two stirring components, and an air compressor installed on the tank cover, the air compressor passing through the tank cover and connected to the aeration pipe.

[0007] The surface of the stirring shaft is provided with multiple threaded holes for installing external studs, thereby connecting the external studs to the stirring shaft. Each threaded hole is connected to the cavity.

[0008] Each stirring assembly includes an external stud that fits into a threaded hole. The external stud is used to install a connecting pipe, thereby connecting the connecting pipe to the stirring shaft. The external stud has a hollow design, and the end of the external stud away from the stirring shaft is connected to the connecting pipe. The connecting pipe is used to connect the external stud to the stirring rod, thereby connecting the stirring rod to the stirring shaft. When the stirring shaft rotates, the stirring rod rotates synchronously. The end of the connecting pipe away from the stirring shaft is equipped with the stirring rod.

[0009] The stirring rod has a hollow interior design, and several vents are provided on its surface. These vents allow the gas injected from the aeration pipe to be ejected through the stirring rod. The stirring rod is connected to the connecting pipe.

[0010] A crossbeam is fixedly installed at the bottom of the sewage treatment tank. The crossbeam is used to install the first coupling. The first coupling is fixedly installed in the center of the crossbeam. The first coupling is used to connect the connecting shaft and the stirring shaft. A connecting shaft is rotatably installed at the lower end of the first coupling. The connecting shaft is used to connect the first coupling to the second coupling, so that the connecting shaft, the stirring shaft and the output shaft of the stirring motor are linked. The connecting shaft is connected to the output shaft of the stirring motor through the second coupling. The second coupling is sealed at the bottom of the sewage treatment tank.

[0011] A pivot seat is located in the center of the bottom of the can lid. The pivot seat is used to fix the upper end of the stirring shaft, so that the stirring shaft is more stable and prevents shaking when rotating. The pivot seat is adapted to the rotation of the stirring shaft.

[0012] A sealing ring is installed at the upper end of the aeration pipe. The sealing ring is used to seal the connection between the aeration pipe and the air supply pipe to prevent air leakage. The upper end of the sealing ring passes through the tank cover and is connected to the air supply pipe. The air supply pipe is used to connect the air compressor to the aeration pipe and is connected to the air outlet of the air compressor.

[0013] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0014] 1. The stirring motor drives the stirring shaft to rotate, and the air compressor is started to supply air to the aeration pipe. The compressed gas is then connected to the hollow external stud and opening through the cavity on the stirring shaft, so that the compressed gas is discharged through the air port on the stirring rod and the opening on the stirring shaft. At this time, the aeration pipe is protected by the main body of the shaft during aeration, which can reduce the probability of blockage of the micropores on the aeration pipe. At the same time, the centrifugal force generated by the rotation of the shaft can throw off the impurities attached to the aeration port to a certain extent, reducing the maintenance frequency.

[0015] 2. The external stud has a hollow design. The external stud is used to install the connecting pipe, thereby connecting the connecting pipe to the stirring shaft. The connecting pipe is used to connect the external stud to the stirring rod, thereby connecting the stirring rod to the stirring shaft. The vent is used to allow the gas injected by the aeration pipe to be ejected through the stirring rod, thereby improving the practicality of the stirring assembly.

[0016] 3. The threaded hole is used to install an external stud, thereby enabling a detachable connection between the external stud and the stirring shaft, which facilitates subsequent maintenance and replacement of the component. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the assembly structure of this utility model;

[0019] Figure 3 This is a front sectional view of the present invention;

[0020] Figure 4 This utility model Figure 3 A magnified view of part A.

[0021] Explanation of reference numerals in the attached drawings: 100, wastewater treatment tank; 101, stirring motor; 102, stirring shaft; 103, tank cover; 104, air compressor; 105, threaded hole; 200, stirring assembly; 201, external stud; 202, through pipe; 203, stirring rod; 204, vent; 300, cavity; 301, aeration pipe; 302, opening; 303, sealing ring; 304, air supply pipe; 400, crossbeam; 401, first coupling; 402, connecting shaft; 403, second coupling; 404, shaft seat. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figure 1-4As shown: This embodiment provides an aeration and stirring device for wastewater treatment, including a stirring motor 101 fixedly mounted on the bottom of a wastewater treatment tank 100. The stirring motor 101 is fixed to the bottom wall of the wastewater treatment tank 100 via a motor bracket. A stirring shaft 102, rotatably connected to the stirring motor 101 inside the wastewater treatment tank 100, is made of corrosion-resistant materials such as stainless steel. A tank cover 103 is provided on the top of the wastewater treatment tank 100. Multiple stirring components 200 are detachably mounted on the surface of the stirring shaft 102. The stirring components 200 are used to stir the wastewater inside the wastewater treatment tank 100. A cavity 300 is provided in the middle along its axial direction. The cavity 300 facilitates the flow of compressed gas. An aeration pipe 301 is installed in the cavity 300. The aeration pipe 301 is used to aerate the liquid in the sewage treatment tank 100. Multiple openings 302 communicating with the cavity 300 are provided through the shaft wall of the stirring shaft 102. The openings 302 facilitate the contact between the gas ejected from the aeration pipe 301 and the sewage. The openings 302 are located between the two stirring components 200. An air compressor 104 is installed on the tank cover 103. The air compressor 104 is used to provide compressed gas to the aeration pipe 301. The air compressor 104 passes through the tank cover 103 and is connected to the aeration pipe 301.

[0024] During use, the stirring motor 101 drives the stirring shaft 102 to rotate, and the air compressor 104 starts to supply air to the aeration pipe 301. Then, the cavity 300 on the stirring shaft 102 is connected to the hollow external stud 201 and the opening 302, so that the compressed gas is discharged through the vent 204 on the stirring rod 203 and the opening 302 on the stirring shaft 102. At this time, the aeration pipe 301 is protected by the main body of the shaft during aeration, which reduces the probability of blockage of the micropores on the aeration pipe 301. At the same time, the centrifugal force generated by the rotation of the shaft can throw away the impurities attached to the aeration port to a certain extent, reducing the maintenance frequency.

[0025] This embodiment provides an aeration and stirring device for wastewater treatment.

[0026] like Figure 2 , 3 As shown in Figure 4: The surface of the stirring shaft 102 is provided with multiple threaded holes 105. The threaded holes 105 are embedded in the shaft wall of the stirring shaft 102. The threaded holes 105 are used to install external studs 201, so that the external studs 201 are connected to the stirring shaft 102. Each threaded hole 105 is connected to the cavity 300.

[0027] Its effect is that the threaded hole 105 is used to install the external stud 201, thereby enabling the external stud 201 to be detachably connected to the stirring shaft 102.

[0028] like Figure 2 , 3As shown in Figure 4: Each stirring assembly 200 includes an external stud 201 adapted to the threaded hole 105. The external stud 201 is welded to and concentrically connected to the through pipe 202. The external stud 201 is used to install the through pipe 202, thereby connecting the through pipe 202 to the stirring shaft 102. The external stud 201 is hollow. The end of the external stud 201 away from the stirring shaft 102 is connected to the through pipe 202. The through pipe 202 is welded to and connected to the stirring rod 203. The through pipe 202 is used to connect the external stud 201 to the stirring rod 203, thereby connecting the stirring rod 203 to the stirring shaft 102. When the stirring shaft 102 rotates, the stirring rod 203 rotates synchronously. The end of the through pipe 202 away from the stirring shaft 102 is provided with the stirring rod 203, which is hollow trapezoidal.

[0029] Its effect is as follows: the external stud 201 is hollow and is used to install the through pipe 202, thereby connecting the through pipe 202 to the stirring shaft 102. The through pipe 202 is used to connect the external stud 201 to the stirring rod 203, thereby connecting the stirring rod 203 to the stirring shaft 102.

[0030] like Figure 2 , 3 As shown in Figure 4: The stirring rod 203 has a hollow interior design, and several air vents 204 are provided through the surface of the stirring rod 203. The air vents 204 are used to allow the gas injected by the aeration pipe 301 to be ejected through the stirring rod 203. The stirring rod 203 is connected to the pipe 202.

[0031] Its effect is that the air vent 204 allows the gas injected by the aeration pipe 301 to be ejected through the stirring rod 203.

[0032] like Figure 2 , 3 As shown: A crossbeam 400 is fixedly installed at the bottom of the sewage treatment tank 100. The crossbeam 400 is welded to the inner wall of the sewage treatment tank 100. The crossbeam 400 is used to install a first coupling 401, which is embedded in the middle of the crossbeam 400. The first coupling 401 is fixedly installed in the center of the crossbeam 400. The first coupling 401 is rotatably and sealingly connected to the stirring shaft 102. The first coupling 401 is used to connect the connecting shaft 402 to the stirring shaft 102. A connecting shaft 402 is rotatably provided at the lower end of the device 401. The connecting shaft 402 is used to connect the first coupling 401 and the second coupling 403, thereby linking the connecting shaft 402, the stirring shaft 102 and the output shaft of the stirring motor 101. The connecting shaft 402 is connected to the output shaft of the stirring motor 101 through the second coupling 403. The second coupling 403 is sealed at the bottom of the sewage treatment tank 100 and is embedded in the bottom wall of the sewage treatment tank 100.

[0033] Its effect is as follows: the crossarm 400 is used to install the first coupling 401, the first coupling 401 is used to connect the connecting shaft 402 to the stirring shaft 102, and the connecting shaft 402 is used to connect the first coupling 401 to the second coupling 403, so that the connecting shaft 402, the stirring shaft 102 and the output shaft of the stirring motor 101 are linked together.

[0034] like Figure 1 , 2 As shown in Figures 3 and 4: A pivot seat 404 is provided at the center of the bottom of the can lid 103. The pivot seat 404 is fixedly connected to the can lid 103. A circular groove is provided on the pivot seat 404 for the stirring shaft 102 to rotate. The pivot seat 404 is used to fix the upper end of the stirring shaft 102, so that the stirring shaft 102 is more stable and prevents shaking when rotating. The pivot seat 404 is adapted to the rotation of the stirring shaft 102.

[0035] Its effect is that the rotating shaft seat 404 is used to fix the upper end of the stirring shaft 102, so that the stirring shaft 102 is more stable and prevents shaking when rotating.

[0036] like Figure 3 , 4 As shown: A sealing ring 303 is provided at the upper end of the aeration pipe 301. The sealing ring 303 is sleeved at the connection between the aeration pipe 301 and the air supply pipe 304. The sealing ring 303 is used to seal the connection between the aeration pipe 301 and the air supply pipe 304 to prevent air leakage. The upper end of the sealing ring 303 passes through the tank cover 103 and is connected to the air supply pipe 304. The air supply pipe 304 is sealed to the air outlet pipe of the air compressor 104. The air supply pipe 304 is used to connect the air compressor 104 and the aeration pipe 301. The air supply pipe 304 is connected to the air outlet of the air compressor 104.

[0037] Its effect is as follows: the sealing ring 303 is used to seal the connection end between the aeration pipe 301 and the air supply pipe 304, thereby preventing air leakage. The air supply pipe 304 is used to connect the air compressor 104 and the aeration pipe 301.

[0038] Working principle: The stirring motor 101 drives the connecting shaft 402 to rotate, which in turn drives the stirring shaft 102 to rotate. The aeration pipe 301 remains stationary within the cavity 300 of the stirring shaft 102 as it rotates. Then, the air compressor 104 is started to supply air to the aeration pipe 301, and the compressed gas is discharged through the vent 204 on the stirring rod 203 and through the opening 302 on the stirring shaft 102. At this time, the aeration pipe 301 is protected by the shaft body during aeration, which reduces the probability of blockage of the micropores on the aeration pipe 301. At the same time, the centrifugal force generated by the rotation of the shaft can dislodge impurities attached to the aeration port to a certain extent, reducing the maintenance frequency.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An aeration and stirring device for wastewater treatment, comprising a stirring motor (101) fixedly mounted on the bottom of a wastewater treatment tank (100), a stirring shaft (102) rotatably connected to the stirring motor (101) inside the wastewater treatment tank (100), and a tank cover (103) that opens and closes on the top of the wastewater treatment tank (100), characterized in that: Multiple stirring components (200) are detachably provided on the surface of the stirring shaft (102). A cavity (300) is provided in the middle of the stirring shaft (102) along its axial direction. An aeration pipe (301) is provided in the cavity (300). Multiple openings (302) communicating with the cavity (300) are provided through the shaft wall of the stirring shaft (102). The openings (302) are located between two of the stirring components (200). An air compressor (104) is provided on the tank cover (103). The air compressor (104) passes through the tank cover (103) and is connected to the aeration pipe (301).

2. The aeration and stirring device for wastewater treatment as described in claim 1, characterized in that: The surface of the stirring shaft (102) is provided with a plurality of threaded holes (105), each of which is connected to the cavity (300).

3. The aeration and stirring device for wastewater treatment as described in claim 2, characterized in that: Each of the stirring components (200) includes an external stud (201) adapted to the threaded hole (105). The external stud (201) is hollow. A through pipe (202) is connected to one end of the external stud (201) away from the stirring shaft (102). A stirring rod (203) is provided at one end of the through pipe (202) away from the stirring shaft (102).

4. The aeration and stirring device for wastewater treatment as described in claim 3, characterized in that: The stirring rod (203) has a hollow interior and several vents (204) are provided through the surface of the stirring rod (203). The stirring rod (203) is connected to the pipe (202).

5. The aeration and stirring device for wastewater treatment as described in claim 4, characterized in that: A crossbeam (400) is fixedly installed at the bottom of the sewage treatment tank (100). A first coupling (401) is fixedly installed in the center of the crossbeam (400). A connecting shaft (402) is rotatably installed at the lower end of the first coupling (401). The connecting shaft (402) is connected to the output shaft of the stirring motor (101) through a second coupling (403). The second coupling (403) is sealed at the bottom of the sewage treatment tank (100).

6. The aeration and stirring device for wastewater treatment as described in claim 5, characterized in that: The bottom of the can lid (103) is centrally located with a rotating shaft seat (404), which is rotatably adapted to the stirring shaft (102).

7. The aeration and stirring device for wastewater treatment as described in claim 6, characterized in that: A sealing ring (303) is provided at the upper end of the aeration pipe (301). The upper end of the sealing ring (303) passes through the tank cover (103) and is connected to an air supply pipe (304). The air supply pipe (304) is connected to the air outlet of the air compressor (104).

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