Sewage treatment sedimentation tank

Abstract

The utility model provides a sewage treatment sedimentation tank, which belongs to the technical field of sewage treatment, and comprises a sedimentation tank body, concave filter screens are fixedly connected to the inner walls of the two sides of the sedimentation tank body, and first spiral transmission blades are rotatably connected to the inner walls of the two sides of the sedimentation tank body. A first motor is fixedly connected to one side end of the sedimentation tank body, an output shaft of the first motor drives a first spiral conveying blade to rotate in the concave filter screen, filtered impurities are further conveyed to notches in the two sides of the bottom of the concave filter screen, and due to the fact that the concave filter screen is designed to be inclined and is matched with rotation of the first spiral conveying blade, the impurities can be effectively filtered out. The impurities can be quickly and effectively conveyed to the inner wall of the bottom of the sedimentation tank body and finally discharged regularly through the blow-off pipe, so that the whole efficient separation and discharge process of the impurities in the sewage is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment sedimentation tank. Background Art

[0002] Sewage usually contains various particles and suspended matter. The existing treatment method is the static method, that is, using a sedimentation tank body (1) for sedimentation. The sedimentation tank body (1) is a building that uses sedimentation to remove suspended matter in water. It is a water purification device that uses the natural sedimentation or coagulation of water to remove suspended matter in water. The sedimentation tank body (1) has the advantages of simple structure and wide application.

[0003] Authorization publication number "CN219722017U" records a sewage treatment sedimentation tank, including a sedimentation tank body (1), a feed port is fixedly installed on one side of the sedimentation tank body (1), a servo motor is fixedly installed on one side of the feed port, and a first transmission rod is spline-connected to the output end of the servo motor. The sewage treatment sedimentation tank, through the matching arrangement of fixing bolts, connecting blocks and cleaning brushes, when in use, the connecting block is placed on the cleaning brush, and then fixed by fixing bolts, thereby facilitating the disassembly of the cleaning device, making it convenient to maintain the cleaning device, through the matching arrangement of the motor, the second transmission rod, the threaded rod and the rotating conveying blade, when in use, the second transmission rod is driven to rotate by the external power supply of the motor, and then the threaded rod is driven to rotate by the second transmission rod, and then the rotating conveying blade is driven to rotate by the threaded rod, thereby playing a role in uniformly transporting and cleaning the deposits.

[0004] The above patent drives the second transmission rod to rotate through the external power supply of the motor, and then drives the threaded rod to rotate through the second transmission rod, and then drives the rotating conveying blade to rotate through the threaded rod, thereby achieving the effect of uniformly transporting and cleaning the deposits. However, the above patent has certain shortcomings when used, and cannot effectively separate sewage and impurities. During the flow of sewage, the suspended matter gradually settles to the bottom of the pool, and the clarified water flows out from the surrounding overflow trough, while the impurities are discharged through the sewage outlet, resulting in extremely low sewage impurity precipitation efficiency. Utility Model Content

[0005] The utility model aims to provide a sewage treatment sedimentation tank, aiming to solve the problem in the prior art that sewage and impurities cannot be effectively separated, so that suspended matter gradually settles to the bottom of the tank during the flow of sewage, while clarified water flows out from the peripheral overflow trough, and impurities are discharged through the sewage outlet, resulting in extremely low sewage impurity sedimentation efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sewage treatment sedimentation tank, comprising:

[0008] A sedimentation tank body, wherein the inner walls on both sides of the sedimentation tank body are fixedly connected with concave filter screens, the inner walls on both sides of the sedimentation tank body are rotatably connected with first spiral transmission blades, one side end of the sedimentation tank body is fixedly connected with a first motor, and the output end of the first motor movably passes through one side end of the sedimentation tank body and is fixed to one end of the first spiral transmission blade;

[0009] A closing plate, the closing plate is fixedly connected to the top of the sedimentation tank body, and the top of the closing plate is fixedly connected with a transmission pipe;

[0010] A connecting pipe, the connecting pipe is fixedly connected to the circumferential surface of the transmission pipe, and the connecting pipe and the transmission pipe are communicated with each other;

[0011] a disc filter, the disc filter being slidably connected in the transmission pipe; and

[0012] A connecting mechanism is arranged in the transmission tube, and is used to drive the first rotating rod to rotate.

[0013] As a preferred solution of the utility model, the connecting mechanism includes:

[0014] A first rotating rod, wherein the first rotating rod is rotatably connected to the circumferential inner wall of the transmission tube, and one end of the first rotating rod movably penetrates the circumferential inner wall of the transmission tube and is rotatably connected to the circumferential outer surface of the transmission tube;

[0015] Cam wheels, two of which are provided, and both of which are fixedly connected to the circumferential surface of the first rotating rod;

[0016] A sliding rod, wherein two sliding rods are provided and both sliding rods are fixedly connected to the circumferential surface of the protective sleeve;

[0017] Springs, wherein two springs are provided, and the two springs are respectively fixedly connected to the bottom ends of the two sliding rods;

[0018] A limiting rod, wherein two limiting rods are provided, the two limiting rods are respectively fixedly connected to the lower inner walls of the two limiting grooves, and the two sliding rods are respectively slidably connected to the circumferential surfaces of the two limiting rods;

[0019] A connecting plate, the connecting plate being fixedly connected to the circumferential inner wall of the transmission pipe;

[0020] a second rotating rod, the second rotating rod being rotatably connected to the connecting plate, and a second spiral transmission blade being fixedly connected to a circumferential surface of the second rotating rod;

[0021] A transmission assembly is arranged on the upper side of the closing plate, and is used to drive the second rotating rod to rotate.

[0022] As a preferred solution of the utility model, the transmission assembly includes:

[0023] A second motor, the second motor is rotatably connected to the circumferential inner wall of the transmission tube, one end of the second motor movably penetrates the circumferential inner wall of the transmission tube and is rotatably connected to the circumferential outer surface of the transmission tube;

[0024] Transmission gears, two of which are provided, and the two transmission gears are respectively fixedly connected to the circumferential surfaces of the first rotating rod and the second motor;

[0025] A toothed belt, the toothed belt drive meshingly connected to the circumferential surfaces of the two transmission gears;

[0026] A first bevel gear, wherein the first bevel gear is fixedly connected to a circumferential surface of the second motor;

[0027] a second bevel gear, the second bevel gear being fixedly connected to a circumferential surface of the second rotating rod;

[0028] A protective sleeve, wherein the protective sleeve is fixedly connected to the circumferential inner wall of the transmission tube, and the protective sleeve is sleeved on the outer surfaces of the first bevel gear and the second bevel gear.

[0029] As a preferred solution of the utility model, the top end of the transmission pipe is fixedly connected with a second flange, and the circumferential surface of the connecting pipe is fixedly connected with a first flange.

[0030] As a preferred solution of the utility model, a connecting seat is fixedly connected to the bottom end of the sedimentation tank body, and a plastic sleeve is fixedly connected to the circumferential surface of the transmission pipe.

[0031] As a preferred solution of the utility model, the front end of the sedimentation tank body is fixedly connected with an intelligent controller.

[0032] Compared with the prior art, the beneficial effects of the utility model are:

[0033] 1. In this scheme, first, the external sewage is sent into the sedimentation tank body through the connecting pipe. When the sewage in the sedimentation tank body reaches a certain liquid level, the excess will be discharged through the transmission pipe. In this process, the sewage will first pass through the protective sleeve for preliminary filtration, and large particles of impurities will be trapped under the protective sleeve. Then, the operator starts the second motor through the intelligent controller, and its output shaft drives the first rotating rod to rotate in the transmission pipe, thereby prompting the two cam wheels to rotate synchronously. The two cam wheels alternately lift the protective sleeve and form a vibration mechanism through the sliding rod and spring to shake off the impurities attached to the lower side of the protective sleeve. Water impurities, then, the detached impurities are spirally transported by the second spiral transmission blade to the concave filter below. When the intelligent controller starts the first motor, the output shaft of the first motor drives the first spiral transmission blade to rotate inside the concave filter, and further transmits the filtered impurities to the gaps on both sides of the bottom of the concave filter. Since the concave filter is designed to be inclined, with the rotation of the first spiral transmission blade, the impurities can be quickly and effectively transported to the bottom inner wall of the sedimentation tank body, and finally discharged regularly through the sewage pipe, completing the efficient separation and discharge process of impurities in the entire sewage.

[0034] 2. In this solution, automation and efficient cleaning: the device automatically starts the second motor through the intelligent controller to drive the first rotating rod and the cam wheel to rotate, thereby realizing the periodic and efficient lifting and vibration removal of impurities in the protective cover, spiral transmission and efficient separation: the second spiral transmission blade and the first spiral transmission blade utilize the spiral transmission principle, which can spirally transmit the filtered sewage impurities downward and discharge them to the bottom inner wall of the sedimentation tank body. Among them, the first spiral transmission blade can accurately discharge impurities from the gaps on both sides of the concave filter screen, ensuring the effective collection and precipitation of impurities, and greatly improving the solid-liquid separation effect of sewage treatment.

[0035] 3. In this scheme, convenient sewage discharge and energy saving and consumption reduction: the inclined design of the concave filter itself, combined with the spiral transmission mechanism, is conducive to the rapid discharge of impurities in sewage, reducing the residence time inside the sedimentation tank body, and reducing the possibility of secondary pollution. In addition, impurities can be discharged regularly, conveniently and quickly through the sewage pipe, reducing the need for manual intervention and reducing the energy consumption of the entire device, thereby providing a more economical and environmentally friendly solution for the sewage treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 It is a three-dimensional diagram of the utility model;

[0038] Figure 2 This is an exploded stereogram from the first perspective of the present invention;

[0039] Figure 3 This is a cutaway stereogram of the utility model from a first viewing angle;

[0040] Figure 4 For the utility model Figure 2 A partial enlarged view of point A.

[0041] In the figure: 1. sedimentation tank body; 2. connecting seat; 3. closing plate; 4. plastic sleeve; 401. toothed belt; 402. transmission gear; 403. first rotating rod; 404. cam wheel; 5. transmission pipe; 501. limiting groove; 502. spring; 503. sliding rod; 504. limiting rod; 6. connecting pipe; 7. first flange; 8. second flange; 9. drain pipe; 10. intelligent controller; 11. first motor; 12. first spiral transmission blade; 13. concave filter; 14. protective sleeve; 15. second spiral transmission blade; 16. second rotating rod; 17. first bevel gear; 18. second bevel gear; 19. second motor; 20. disc filter. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] Example 1

[0044] See also Figure 1-Figure 4 , the utility model provides the following technical solutions:

[0045] A sewage treatment sedimentation tank, comprising:

[0046] A sedimentation tank body 1, the inner walls of both sides of the sedimentation tank body 1 are fixedly connected with concave filter screens 13, the inner walls of both sides of the sedimentation tank body 1 are rotatably connected with first spiral transmission blades 12, one side end of the sedimentation tank body 1 is fixedly connected with a first motor 11, and the output end of the first motor 11 movably passes through one side end of the sedimentation tank body 1 and is fixed to one end of the first spiral transmission blade 12;

[0047] A closing plate 3, the closing plate 3 is fixedly connected to the top of the sedimentation tank body 1, and a transmission pipe 5 is fixedly connected to the top of the closing plate 3;

[0048] A connecting pipe 6, the connecting pipe 6 is fixedly connected to the circumferential surface of the transmission pipe 5, and the connecting pipe 6 and the transmission pipe 5 are communicated with each other;

[0049] A disc filter 20, the disc filter 20 is slidably connected in the transmission pipe 5; and

[0050] The connecting mechanism is disposed in the transmission tube 5 , and is used to drive the first rotating rod 403 to rotate.

[0051] In a specific embodiment of the utility model, a sewage treatment sedimentation tank body 1 is used as the main part, and a concave filter screen 13 is fixedly installed on the inner walls of both sides thereof. The filter screen is used to intercept and precipitate solid particles in the sewage, thereby realizing preliminary solid-liquid separation. The first spiral transmission blade 12 can transport the sludge and other particulate matter settled at the bottom of the tank downward. A first motor 11 is fixedly installed on one end face of the sedimentation tank body 1. The output end of the first motor 11 is connected to one end of the first spiral transmission blade 12 by moving through one end face of the sedimentation tank body 1. When the first motor 11 is running, it can drive the first spiral transmission blade 12 to rotate, thereby realizing effective lifting and transmission of the sludge at the bottom of the sedimentation tank body 1. A closing plate 3 is fixedly connected to the top of the sedimentation tank body 1, and the closing plate 3 is fixedly connected to the top of the sedimentation tank body 1. The top of the plate 3 is further fixedly connected with a transmission pipe 5, which serves to guide the lifted sludge and particulate matter to subsequent treatment facilities. In order to realize continuous transportation of sludge, the connecting pipe 6 is fixedly connected to the circumferential surface of the transmission pipe 5, and is interconnected with the inside of the transmission pipe 5, ensuring the smooth transfer of solid particles. Different from the previous concave filter 13, the disc filter 20 is arranged inside the transmission pipe 5 and is slidably connected to the inner wall of the transmission pipe 5, further finely filtering the rising sludge and particles to prevent large particles from entering the subsequent treatment device. It should be noted that the specific type of the first motor 11 to be used is selected by relevant technical personnel familiar with this field, and the above-mentioned first motor 11 and the like belong to the prior art and will not be elaborated in this scheme.

[0052] For details, please refer to Figure 1-Figure 4 , the connection mechanism includes:

[0053] A first rotating rod 403, the first rotating rod 403 is rotatably connected to the circumferential inner wall of the transmission tube 5, one end of the first rotating rod 403 movably penetrates the circumferential inner wall of the transmission tube 5 and is rotatably connected to the circumferential outer surface of the transmission tube 5;

[0054] Cam wheels 404, two cam wheels 404 are provided, and both cam wheels 404 are fixedly connected to the circumferential surface of the first rotating rod 403;

[0055] Sliding rods 503, two sliding rods 503 are provided, and both sliding rods 503 are fixedly connected to the circumferential surface of the protective cover 14;

[0056] Spring 502, two springs 502 are provided, and the two springs 502 are respectively fixedly connected to the bottom ends of the two sliding rods 503;

[0057] The limiting rods 504 are provided with two limiting rods 504, the two limiting rods 504 are respectively fixedly connected to the lower inner walls of the two limiting grooves 501, and the two sliding rods 503 are respectively slidably connected to the circumferential surfaces of the two limiting rods 504;

[0058] A connecting plate, the connecting plate is fixedly connected to the circumferential inner wall of the transmission pipe 5;

[0059] A second rotating rod 16, the second rotating rod 16 is rotatably connected to the connecting plate, and a second spiral transmission blade 15 is fixedly connected to the circumferential surface of the second rotating rod 16;

[0060] The transmission assembly is arranged on the upper side of the closing plate 3 , and is used to drive the second rotating rod 16 to rotate.

[0061] In this embodiment: the connecting mechanism is composed of a series of precisely matched parts, which are used to drive the first rotating rod 403 and the second rotating rod 16 to rotate, so as to realize the effective transmission and treatment of the sludge in the sedimentation tank body 1. The first rotating rod 403 is rotatably connected to the circumferential inner wall of the transmission pipe 5, and one end movably penetrates the inner and outer walls of the transmission pipe 5 to ensure that it can rotate freely inside the transmission pipe 5 while generating linkage with external parts. The two cam wheels 404 are fixed on the circumferential surface of the first rotating rod 403. When the first rotating rod 403 rotates, the cam wheel 404 rotates accordingly, contacts with other matching parts and transmits power. Sliding rod 503 and spring 502: two sliding rods 503 are provided, which are fixed on the circumferential surface of the protective cover 14, and the bottom end of the sliding rod 503 is fixed with a spring 502. Under the action of the spring 502, the sliding rod 503 can slide on the circumferential surface of the limiting rod 504, thereby realizing the response and buffering of the movement of the first rotating rod 403. The limiting rod 504 and the limiting groove 501: the two limiting rods 504 are respectively fixed on the lower inner wall of the limiting groove 501, and the sliding rod 503 slides on this limiting rod 504, providing guidance and limiting functions for the sliding rod 503, ensuring its stability during movement. The connecting plate and the second rotating rod 16: the connecting plate is fixed to the circumferential inner wall of the transmission pipe 5, and the second rotating rod 16 is rotatably connected in the connecting plate, and the second spiral transmission blade 15 is fixed on its circumferential surface. When the second rotating rod 16 is driven to rotate by the transmission assembly, the second spiral transmission blade 15 will follow the rotation to further transmit and process the sludge in the transmission pipe 5.

[0062] For details, please refer to Figure 1-Figure 3 , the transmission components include:

[0063] A second motor 19, the second motor 19 is rotatably connected to the circumferential inner wall of the transmission tube 5, one end of the second motor 19 movably penetrates the circumferential inner wall of the transmission tube 5 and is rotatably connected to the circumferential outer surface of the transmission tube 5;

[0064] Transmission gear 402, two transmission gears 402 are provided, and the two transmission gears 402 are respectively fixedly connected to the circumferential surface of the first rotating rod 403 and the second motor 19;

[0065] A toothed belt 401, the toothed belt 401 is transmission-engaged and connected to the circumferential surfaces of two transmission gears 402;

[0066] A first bevel gear 17, wherein the first bevel gear 17 is fixedly connected to a circumferential surface of a second motor 19;

[0067] A second bevel gear 18, the second bevel gear 18 is fixedly connected to the circumferential surface of the second rotating rod 16;

[0068] The protective sleeve 14 is fixedly connected to the circumferential inner wall of the transmission tube 5 , and the protective sleeve 14 is sleeved on the outer surfaces of the first bevel gear 17 and the second bevel gear 18 .

[0069] In this embodiment: the second motor 19 is installed on the circumferential inner wall of the transmission tube 5 in a rotating connection manner, and one end of the second motor 19 is connected to the outer surface of the transmission tube 5 by a movable penetration. After the motor is started, it can drive the relevant transmission components to rotate. The two transmission gears 402 are respectively fixed on the circumferential surface of the first rotating rod 403 and the second motor 19. The two realize the meshing transmission of power through the toothed belt 401. The toothed belt 401 surrounds the circumferential surface of the two transmission gears 402. Through the meshing action, when the second motor 19 rotates, its power is transmitted to the first rotating rod 403 through the toothed belt 401, so that the first rotating rod 403 starts to rotate. The first bevel gear 17 is fixed on the circumferential surface of the second motor 19. The second bevel gear 18 is fixed on the circumferential surface of the second rotating rod 16, and the two are meshed to form a bevel gear transmission mechanism. In order to protect the bevel gear from the influence of the external environment and ensure the stability of the transmission process, the protective sleeve 14 is fixedly connected to the circumferential inner wall of the transmission pipe 5 and wraps the outer surface of the first bevel gear 17 and the second bevel gear 18. Through the transmission assembly, the second motor 19 is used as the power source. Through the transmission cooperation of the transmission gear 402, the toothed belt 401 and the first bevel gear 17 and the second bevel gear 18, the synchronous rotation of the first rotating rod 403 and the second rotating rod 16 is realized, thereby ensuring the efficient transmission and treatment of the sludge inside the sewage treatment sedimentation tank body 1.

[0070] For details, please refer to Figure 2 The top end of the transmission pipe 5 is fixedly connected with a second flange 8 , and the circumferential surface of the connecting pipe 6 is fixedly connected with a first flange 7 .

[0071] In this embodiment: the second flange 8 and the first flange 7 are respectively welded to the top of the transmission pipe 5 and the circumferential surface of the connecting pipe 6 to ensure the tightness and stability of the connection between the two, so as to facilitate reliable connection and sealing with other components.

[0072] For details, please refer to Figure 1-Figure 4 The bottom end of the sedimentation tank body 1 is fixedly connected with a connecting seat 2, and the circumferential surface of the transmission pipe 5 is fixedly connected with a plastic sleeve 4.

[0073] In this embodiment: the connecting seat 2 and the sedimentation tank body 1 are integrally formed with high-strength materials or are firmly connected by welding, mechanical fixation, etc., to ensure that the bottom of the sedimentation tank body 1 can stably bear and effectively transport the processed substances inside through the connecting seat 2 to the outside. The circumferential surface of the transmission pipe 5 is covered with a fixed plastic sleeve 4. The plastic sleeve 4 has excellent corrosion resistance and good sealing effect. It is precisely fitted and fixed on the circumferential surface of the transmission pipe 5. It can not only effectively protect the transmission pipe 5 and reduce the corrosion and wear caused by the external environment, but also enhance the sealing performance of the contact part between the pipeline and the outside world during the transmission process to prevent leakage. In addition, the design of the plastic sleeve 4 can also slow down the vibration of the transmission pipe 5 during operation, thereby improving the safety and stability of the operation of the entire device.

[0074] For details, please refer to Figure 1-Figure 3 The front end of the sedimentation tank body 1 is fixedly connected with an intelligent controller 10.

[0075] In this embodiment: the intelligent controller 10 has advanced automatic control functions, which can monitor and accurately adjust various operating parameters inside the sedimentation tank body 1 in real time, such as liquid level, temperature, pH value, etc., so as to achieve effective control and optimization of the sedimentation process.

[0076] The working principle and use process of the utility model are as follows: when treating sewage, the connecting pipe 6 is used to transmit external sewage to the sedimentation tank body 1. When the sewage in the sedimentation tank body 1 is full, it will be discharged through the transmission pipe 5. The transmission pipe 5 is connected to the external sewage transmission pipe 5, and the sewage will be filtered through the protective sleeve 14, so that the impurities in the sewage will stay on the lower side of the protective sleeve 14. Then the personnel will start the second motor 19 in the intelligent controller 10, and the output shaft of the second motor 19 will immediately drive the first rotating rod 403 to complete the rotation in the transmission pipe 5. When the first rotating rod 403 rotates, it will drive the two cam wheels 404 on the surface to rotate, so that the two cam wheels 404 can lift the protective sleeve 14 at the same time, so that when the protective sleeve 14 is lifted and moved, it will drive the two sliding rods 503 on the surface to move upward, and then the two sliding rods 503 will drive the two springs 502 at the bottom to expand. When the protective sleeve 14 is not lifted When the filter 10 is lifted, the two springs 502 will respectively drive the two sliding rods 503 to move downward, the elasticity of the two springs 502 will shrink, and the protective cover 14 will vibrate when it is continuously lifted, shaking off the sewage impurities attached to the lower side, and the second spiral transmission blade 15 will spirally transmit the impurities downward to prevent the impurities from overflowing. The impurities will fall into the concave filter screen 13, and then the first motor 11 will be started by using the intelligent controller 10. The output shaft of the first motor 11 will immediately drive the first spiral transmission blade 12 to rotate in the concave filter screen 13. The first spiral transmission blade 12 will transmit the impurities to the notches on both sides of the bottom of the concave filter screen 13, so that the impurities will eventually fall into the bottom inner wall of the sedimentation tank body 1. The concave filter screen 13 itself is inclined, and with the first spiral transmission blade 12, the sewage impurities can be quickly discharged from the bottom inner wall of the sedimentation tank body 1, and then the impurities are finally provided to the sewage pipe 9 for regular discharge.

[0077] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sewage treatment sedimentation tank, characterized in that: include: A sedimentation tank body (1), wherein concave filter screens (13) are fixedly connected to the inner walls on both sides of the sedimentation tank body (1), first spiral transmission blades (12) are rotatably connected to the inner walls on both sides of the sedimentation tank body (1), a first motor (11) is fixedly connected to one side end of the sedimentation tank body (1), and an output end of the first motor (11) movably passes through one side end of the sedimentation tank body (1) and is fixed to one end of the first spiral transmission blade (12); A closing plate (3), the closing plate (3) being fixedly connected to the top of the sedimentation tank body (1), and the top of the closing plate (3) being fixedly connected to a transmission pipe (5); A connecting pipe (6), the connecting pipe (6) being fixedly connected to the circumferential surface of the transmission pipe (5), the connecting pipe (6) and the transmission pipe (5) being in communication with each other; A disc filter (20), wherein the disc filter (20) is slidably connected in the transmission pipe (5); as well as A connecting mechanism is arranged in the transmission tube (5), and is used to drive the first rotating rod (403) to rotate.

2. A sewage treatment sedimentation tank according to claim 1, characterized in that: The connecting mechanism comprises: A first rotating rod (403), the first rotating rod (403) being rotatably connected to the circumferential inner wall of the transmission tube (5), one end of the first rotating rod (403) movably passing through the circumferential inner wall of the transmission tube (5) and being rotatably connected to the circumferential outer surface of the transmission tube (5); A cam wheel (404), wherein two cam wheels (404) are provided, and both cam wheels (404) are fixedly connected to the circumferential surface of the first rotating rod (403); A sliding rod (503), wherein two sliding rods (503) are provided, and both sliding rods (503) are fixedly connected to the circumferential surface of the protective sleeve (14); A spring (502), wherein two springs (502) are provided, and the two springs (502) are respectively fixedly connected to the bottom ends of the two sliding rods (503); A limiting rod (504), wherein two limiting rods (504) are provided, and the two limiting rods (504) are respectively fixedly connected to the lower inner walls of the two limiting grooves (501), and the two sliding rods (503) are respectively slidably connected to the circumferential surfaces of the two limiting rods (504); A connecting plate, the connecting plate being fixedly connected to the circumferential inner wall of the transmission pipe (5); A second rotating rod (16), the second rotating rod (16) being rotatably connected to the connecting plate, and a second spiral transmission blade (15) being fixedly connected to a circumferential surface of the second rotating rod (16); A transmission assembly is arranged on the upper side of the closing plate (3), and is used to drive the second rotating rod (16) to rotate.

3. A sewage treatment sedimentation tank according to claim 2, characterized in that: The transmission assembly comprises: a second motor (19), the second motor (19) being rotatably connected to the circumferential inner wall of the transmission tube (5), one end of the second motor (19) movably passing through the circumferential inner wall of the transmission tube (5) and being rotatably connected to the circumferential outer surface of the transmission tube (5); A transmission gear (402), wherein two transmission gears (402) are provided, and the two transmission gears (402) are respectively fixedly connected to the circumferential surface of the first rotating rod (403) and the second motor (19); a toothed belt (401), the toothed belt (401) being drivingly meshedly connected to the circumferential surfaces of two transmission gears (402); A first bevel gear (17), the first bevel gear (17) being fixedly connected to a circumferential surface of a second motor (19); A second bevel gear (18), the second bevel gear (18) being fixedly connected to a circumferential surface of the second rotating rod (16); A protective sleeve (14), wherein the protective sleeve (14) is fixedly connected to the circumferential inner wall of the transmission tube (5), and the protective sleeve (14) is sleeved on the outer surfaces of the first bevel gear (17) and the second bevel gear (18).

4. A sewage treatment sedimentation tank according to claim 3, characterized in that: The top end of the transmission pipe (5) is fixedly connected to a second flange (8), and the circumferential surface of the connecting pipe (6) is fixedly connected to a first flange (7).

5. A sewage treatment sedimentation tank according to claim 4, characterized in that: The bottom end of the sedimentation tank body (1) is fixedly connected to a connection seat (2), and the circumferential surface of the transmission pipe (5) is fixedly connected to a plastic sleeve (4).

6. A sewage treatment sedimentation tank according to claim 5, characterized in that: An intelligent controller (10) is fixedly connected to the front end of the sedimentation tank body (1).

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