Inclined plate sedimentation tank for sewage treatment

Abstract

The utility model discloses an inclined plate sedimentation tank for sewage treatment, which relates to the field of sewage treatment equipment and comprises a sedimentation tank body for providing space for sewage sedimentation, a drainage mechanism arranged at the upper end of the sedimentation tank body, a water inlet mechanism arranged at the lower end of the sedimentation tank body and a sewage discharge mechanism arranged at the bottom of the sedimentation tank body; the inclined plate mechanism is arranged in the cavity of the sedimentation tank body, is used for carrying out cavity separation sedimentation on the sewage, and is positioned above the water inlet mechanism and below the drainage mechanism; the stirring mechanism comprises a stirring rod and stirring blades, the stirring blades are arranged at one end of the stirring rod, the other end of the stirring rod is located on the outer side of the sedimentation tank body, the stirring blades are located in the sedimentation tank body and located below the inclined plate mechanism, and the stirring rod penetrates through the inclined plate mechanism. According to the utility model, the stirring mechanism penetrating through the inclined plate mechanism is arranged, so that sewage before precipitation can be stirred, and the purpose of thoroughly reacting a medicine reagent added from the water inlet mechanism with the sewage is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment equipment, in particular to an inclined plate sedimentation tank for sewage treatment. Background Art

[0002] Inclined plate sedimentation tanks for sewage treatment are highly efficient water treatment equipment widely used in industrial and municipal water treatment projects. Compared to traditional sedimentation tanks, inclined plate sedimentation tanks offer higher sedimentation efficiency, are more space-efficient, consume less energy, and are easier to maintain. They operate based on the principle of "shallow sedimentation." By installing diagonally arranged plates or pipes within the sedimentation tank, the sedimentation area is increased and the particle settling distance is shortened, thereby improving treatment efficiency. This design enables the inclined plate sedimentation tank to achieve efficient sedimentation in a relatively small space, saving floor space and making it particularly suitable for sites with limited space. Inclined plate sedimentation tanks can be divided into three different separation modes: co-current flow, counter-current flow, and lateral flow, depending on the relative movement of water and sludge. The flow between the inclined plates (or inclined pipes) changes from turbulent to laminar flow, further improving sedimentation efficiency. The plates (or pipes) are typically installed at a 45-60° angle to the horizontal plane to facilitate timely sludge discharge.

[0003] Most existing sedimentation tanks have a honeycomb-shaped inclined structure, which is easy to clog and difficult to clean. In addition, due to the limitations of the sedimentation tank structure, the added pharmaceutical reagents do not react completely with the sewage.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The purpose of the utility model is to provide an inclined plate sedimentation tank for sewage treatment, which can stir the sewage before sedimentation by arranging a stirring mechanism penetrating the inclined plate mechanism, so as to solve the problem of incomplete reaction between drug reagents and sewage in the prior art.

[0006] The present invention is implemented through the following technical solutions: The present invention provides an inclined plate sedimentation tank for sewage treatment, comprising:

[0007] The sedimentation tank body provides space for sewage sedimentation. The upper end of the sedimentation tank body is provided with a drainage mechanism, the lower end is provided with a water inlet mechanism, and the bottom is provided with a sewage discharge mechanism;

[0008] The inclined plate mechanism is arranged in the cavity of the sedimentation tank body and is used to separate the sewage into different chambers for sedimentation. The inclined plate mechanism is located above the water inlet mechanism and below the drainage mechanism.

[0009] The stirring mechanism comprises a stirring rod and a stirring blade, the stirring blade is arranged at one end of the stirring rod, the other end of the stirring rod is located outside the sedimentation tank body and can be rotated after being driven by the motor, the stirring blade is located inside the sedimentation tank body and below the inclined plate mechanism, and the stirring rod penetrates the inclined plate mechanism.

[0010] Preferably, the inclined plate mechanism comprises a support frame and a plurality of inclined plates, the support frame is connected with the inner wall of the sedimentation tank body, the inclined plates are installed on the support frame, and the inclined plates are arranged in the inclined plate mechanism.

[0011] Preferably, the support frame comprises an upper frame and a lower frame, the middle parts of the upper frame and the lower frame are connected through a connecting block, the upper end of each inclined plate is connected with the upper frame, and the lower end of each inclined plate is connected with the lower frame.

[0012] Preferably, the stirring rod penetrates the connecting block, the stirring rod can be vertically displaced relative to the connecting block after being driven, and the lower end of the connecting block is provided with a receiving groove for receiving the stirring blade.

[0013] Preferably, the stirring blade is rectangular or cylindrical, the shape and size of the receiving groove are matched with the shape and size of the stirring blade, and the bottom surface of the stirring blade is flush with the bottom surface of the connecting block when the stirring blade is received by the receiving groove.

[0014] Preferably, a plurality of opposite limiting grooves are arranged on the two sides of the upper frame, the limiting grooves are used for limiting the position of each inclined plate, and a plurality of opposite limiting grooves are arranged on the two sides of the lower frame.

[0015] The limiting grooves of the upper frame are downwardly open, the limiting grooves of the lower frame are upwardly open, and the limiting grooves of the upper frame and the limiting grooves of the lower frame are jointly arranged to support the inclined plates to be placed in an inclined manner.

[0016] Preferably, the inclined plates on the left side of the connecting block are placed in an inclined manner to the left, and the inclined plates on the right side of the connecting block are placed in an inclined manner to the right.

[0017] Preferably, a left guide plate and a right guide plate are further arranged in the sedimentation tank body, the left guide plate is arranged below the inclined plate mechanism and is used for guiding the sludge on the inclined plates on the left side of the connecting block to the sludge discharge mechanism,

[0018] the right guide plate is arranged below the inclined plate mechanism and is used for guiding the sludge on the inclined plates on the right side of the connecting block to the sludge discharge mechanism, and the sludge discharge mechanism is arranged between the left guide plate and the right guide plate.

[0019] Preferably, the left guide plate is arranged in an inclined manner to the right, the right guide plate is arranged in an inclined manner to the left, and the left guide plate and the right guide plate are arranged in an axial symmetry.

[0020] Preferably, two supporting feet are arranged in an axial symmetry at the bottom of the sedimentation tank body.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] 1. The inclined plate sedimentation tank provided by the embodiment of the present invention has an inclined plate mechanism arranged inside the sedimentation tank body. The inclined plate mechanism separates the sewage into chambers for sedimentation. Each inclined plate is equivalent to an independent small sedimentation tank, which increases the effective sedimentation area, shortens the distance for particle sedimentation, and improves the sedimentation efficiency. The key to the embodiment of the present invention is that a stirring blade is installed under the inclined plate mechanism, and a stirring rod passes through the inclined plate mechanism. The outside of the stirring rod is driven to rotate by a motor to drive the stirring blade to rotate, thereby achieving stirring of the sewage before sedimentation in the sedimentation tank body, so that the drug reagent (such as flocculant) added from the water inlet mechanism can be evenly distributed and fully contact with the suspended matter in the sewage, thereby improving the reaction efficiency. The structural setting of the stirring mechanism can not only ensure the thoroughness of the reaction between the drug reagent and the sewage, but also will not affect the sedimentation efficiency of the sewage in the sedimentation tank body.

[0023] 2. The inclined plate mechanism provided in the embodiment of the present invention includes a connecting block connecting the upper frame and the lower frame, the stirring rod passes through the connecting block, and a receiving groove is provided on the connecting block. When the sedimentation tank body is in the process of sewage sedimentation, force can be applied to the stirring rod so that the stirring rod drives the stirring blade to move upward, thereby accommodating the stirring blade in the receiving groove to reduce the influence of the stirring blade on the sedimentation efficiency.

[0024] 3. The inclined plates of this embodiment are positioned together with the limiting grooves in the upper and lower frames to ensure stable installation at a reasonable tilt angle. This also precisely limits the position between two adjacent inclined plates, improving sedimentation efficiency while preventing blockage. This detachable connection facilitates cleaning and maintenance, increasing the flexibility of the sedimentation tank.

[0025] In general, the inclined plate sedimentation tank provided in the embodiment of the present invention can stir the sewage before sedimentation by providing a stirring mechanism that penetrates the inclined plate mechanism, so as to achieve the purpose of allowing the drug reagent added from the water inlet mechanism to react thoroughly with the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of the structure of the inclined plate sedimentation tank provided in an embodiment of the utility model;

[0028] Figure 2 A schematic structural diagram of a support frame provided by an embodiment of the present utility model;

[0029] Figure 3 A schematic diagram of the bottom structure of the connecting block provided in an embodiment of the present utility model;

[0030] Figure 4 A schematic diagram of the upper frame structure provided by an embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the stirring mechanism structure provided in an embodiment of the present utility model.

[0032] Markings and corresponding parts names in the accompanying drawings:

[0033] 1- sedimentation tank body, 2- drainage mechanism, 3- water inlet mechanism, 4- sewage discharge mechanism, 5- inclined plate mechanism, 6- stirring mechanism, 7- stirring blade, 8- stirring rod, 9- supporting frame, 10- inclined plate, 11- upper frame, 12- lower frame, 13- connecting block, 14- receiving groove, 15- limiting groove, 16- left guide plate, 17- right guide plate, 18- supporting foot. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] Example

[0039] like Figure 1As shown, an embodiment of the utility model provides an inclined plate sedimentation tank for sewage treatment, comprising: a sedimentation tank body 1, which provides space for sewage sedimentation, a drainage mechanism 2 is provided at the upper end of the sedimentation tank body 1 to discharge clean water after sedimentation treatment, and a water inlet mechanism 3 is provided at the lower end thereof, which is responsible for evenly distributing the sewage and pharmaceutical reagents to be treated into the sedimentation tank, and a sewage discharge mechanism 4 is provided at the bottom thereof for regularly or continuously discharging the deposited sludge; it should be noted that the drainage mechanism 2, the water inlet mechanism 3 and the sewage discharge mechanism 4 respectively include control valves, which are used to control their opening or closing.

[0040] The inclined plate mechanism 5 is arranged in the cavity of the sedimentation tank body 1 and is used to separate the chambers for sedimentation of the sewage. The inclined plate mechanism 5 is located above the water inlet mechanism 3 and below the drainage mechanism 2, ensuring that the sewage has enough time and space to settle when flowing between the inclined plates. The stirring mechanism 6 includes a stirring rod 8 and a stirring blade 7. The stirring blade 7 is arranged at one end of the stirring rod 8, and the other end of the stirring rod 8 is located outside the sedimentation tank body 1 and can be driven by a motor to rotate to promote the mixing of suspended matter in the sewage with the flocculant. The stirring blade 7 is located in the sedimentation tank body 1 and below the inclined plate mechanism 5. The stirring rod 8 passes through the inclined plate mechanism 5. The motor drive can adjust the stirring speed and time to adapt to different treatment requirements. The stirring blade 7 is located below the inclined plate mechanism 5 to ensure that the sewage rising through the inclined plate mechanism 5 is fully mixed with the flocculant. The inclined plate sedimentation tank provided by the embodiment of the utility model improves the sedimentation efficiency through the chamber sedimentation effect of the inclined plate mechanism 5. At the same time, the stirring mechanism 6 ensures the full mixing of the sewage and the flocculant, thereby improving the effect of sewage treatment. The setting of the sewage discharge mechanism 4 enables the sludge to be discharged effectively, avoids the accumulation of sludge at the bottom of the tank, and reduces the maintenance workload. The overall structure takes into account both the sewage treatment efficiency and the simplicity of operation and convenience of maintenance.

[0041] During use, the sewage to be treated and the reagents and drugs continuously enter the sedimentation tank body 1 from the water inlet mechanism 3. The stirring mechanism 6 is driven by a motor to rotate, so that the sewage under the inclined plate mechanism 5 is fully mixed with the inclined plate mechanism 5 and then the stirring is stopped. The mixed sewage rises from the inclined plate mechanism 5 to the liquid level. When the liquid level rises to a certain height, it begins to settle. The clear water after sedimentation is discharged and collected from the drainage mechanism 2. The sludge sinks to the bottom of the sedimentation tank body 1 through its own gravity and the guidance of the inclined plate mechanism 5, and can be discharged through the sewage discharge mechanism 4. This structure not only has high sedimentation and separation efficiency, but also the sewage and the reagents and drugs react fully, and the stirring mechanism 6 does not affect the sedimentation efficiency.

[0042] Exemplarily, the inclined plate mechanism 5 includes a support frame 9 and a plurality of inclined plates 10. The support frame 9 is connected to the inner wall of the sedimentation tank body 1. The inclined plates 10 are mounted on the support frame 9. An inclined sedimentation channel is formed between two adjacent inclined plates 10. The sedimentation channel connects the entire space inside the sedimentation tank body 1. Specifically, the support frame 9 is connected to the inner wall of the sedimentation tank body 1, providing a stable support structure. The setting of the support frame 9 ensures the fixation and stability of the inclined plates 10, and can withstand the pressure generated during the flow and sedimentation of sewage. The inclined plates 10 are mounted on the support frame 9 to form a plurality of inclined planes to optimize the sedimentation effect. It should be noted that the connection between the support frame 9 and the inner wall of the sedimentation tank body 1 can be connected by bonding, threading, clamping, etc., and there is no limitation here, as long as the purpose of sufficient connection stability can be achieved. As a preferred embodiment of the present invention, an outwardly protruding support platform can be provided on the inner wall of the sedimentation tank body 1, and the support frame 9 can be placed on the support platform.

[0043] More specifically, if Figure 2 As shown, the support frame 9 includes an upper frame 11 and a lower frame 12, the middle portions of which are connected by a connecting block 13. The upper end of a single inclined plate 10 is connected to the upper frame 11, and the lower end is connected to the lower frame 12. The upper frame 11 and the lower frame 12 respectively constitute the upper and lower boundaries of the inclined plate mechanism 5, providing fixation and support for the inclined plate 10. The middle portions of the upper frame 11 and the lower frame 12 are connected by a connecting block 13. This connecting block 13 not only serves as a connection but also provides structural strength and stability, ensuring the stability of the inclined plate mechanism 5 during operation. The upper end of a single inclined plate 10 is connected to the upper frame 11, and the lower end is connected to the lower frame 12, ensuring stable positioning of the inclined plate 10. The inclined sedimentation channels formed between adjacent inclined plates 10 are the core of the inclined plate sedimentation tank. The arrangement of these channels facilitates the sedimentation of suspended particles by gravity. The sedimentation channels connect the entire interior of the sedimentation tank body 1, ensuring uniform flow of wastewater throughout the entire sedimentation tank, increasing the sedimentation area and improving sedimentation efficiency. The setting of the support frame 9 allows the inclined plates 10 to be evenly distributed. Of course, in other embodiments, it can also be set to optimize the sedimentation efficiency and adapt to different treatment needs by adjusting the distance between the upper frame 11 and the lower frame 12 (i.e., the inclination angle of the inclined plates). The setting of the support frame 9 of the embodiment of the present invention can adapt to sewage treatment needs of different scales by flexibly increasing or reducing the number of inclined plates. Through its unique support frame 9 structure and inclined plate 10 layout, the efficiency and effect of sewage treatment are improved, while ensuring the stability and maintainability of the structure. It should also be noted that the specific layout of the inclined plates 10 is not limited here, and can be designed according to actual needs.

[0044] Further, if Figure 3 and Figure 5As shown, the stirring rod 8 is connected to the connecting block 13. After the stirring rod 8 is driven, it can be vertically displaced relative to the connecting block 13. The lower end of the connecting block 13 is provided with a receiving groove 14, which is used to accommodate the stirring blade 7. Specifically, the stirring rod 8 passes through the connecting block 13 and can be adjusted to an appropriate vertical position, which can more effectively stir the sewage, promote the mixing of the flocculant and the sewage, and improve the reaction efficiency. The lower end of the connecting block 13 is provided with a receiving groove 14 for accommodating the stirring blade 7. In conjunction with the vertical adjustment function of the stirring rod 8, the stirring blade 7 can be accommodated when the stirring rod 8 rises to a certain position to avoid interference with the inclined plate mechanism 5. It is also convenient to clean and maintain the stirring blade 7. It should be noted that the shape of the stirring blade 7 is not limited here. For example, the stirring blade 7 is rectangular or cylindrical. It is preferred that the shape and size of the receiving groove 14 are adapted to the shape and size of the stirring blade 7, and when the stirring blade 7 is accommodated by the receiving groove 14, the bottom surface of the stirring blade 7 is flush with the bottom surface of the connecting block 13. The shape and size of the receiving groove 14 are adapted to those of the stirring blade 7. This configuration ensures that the stirring blade 7 can be completely accommodated within the groove, reducing wear and tear on the stirring blade 7 when not in operation, while also facilitating inspection and maintenance. When the stirring blade 7 is accommodated in the receiving groove 14, the bottom surface of the stirring blade 7 is flush with the bottom surface of the connecting block 13. This design ensures that when the stirring rod 8 is raised to a certain position, the stirring blade 7 does not protrude from the internal structure of the sedimentation tank, thereby preventing the stirring blade 7 from interfering with the operation of the inclined plate mechanism 5.

[0045] In order to further improve the installation stability of the inclined plate 10, as Figure 4 As shown, multiple opposing limiting grooves 15 can be provided on both sides of the upper frame 11. The limiting grooves 15 are used to limit the position of a single inclined plate 10. Multiple opposing limiting grooves 15 are also provided on both sides of the lower frame 12. The limiting grooves 15 of the upper frame 11 open downward, while the limiting grooves 15 of the lower frame 12 open upward. The limiting grooves 15 of the upper frame 11 and the limiting grooves 15 of the lower frame 12 are jointly configured to support the inclined plate 10 for tilted placement. Specifically, these limiting grooves 15 are used to limit and fix the position of a single inclined plate 10, ensuring the precise positioning of the inclined plate in the sedimentation tank and preventing the inclined plate from shifting or tilting due to the impact of water flow. The limiting groove 15 of the upper frame 11 opens downward, while the limiting groove 15 of the lower frame 12 opens upward, that is, the relative opening arrangement enables the limiting groove 15 to jointly clamp the upper and lower ends of the inclined plate 10, thereby supporting the inclined plate for inclined placement. Through the limiting grooves 15 of the upper frame 11 and the lower frame 12, the inclined plate is fixed at a predetermined inclination angle, which helps to guide the water flow along the surface of the inclined plate and promote the sedimentation of suspended particles. At the same time, it reduces the direct impact of the water flow on the inclined plate and reduces the risk of blockage. This structure ensures the stable arrangement of the inclined plate, which is crucial to maintaining the long-term and effective operation of the inclined plate sedimentation tank.

[0046] As a preferred embodiment of the present invention, the inclined plate 10 on the left side of the connecting block 13 is tilted to the left, and the inclined plate 10 on the right side of the connecting block 13 is tilted to the right. This can divide the sedimentation path of the sludge into two paths, reducing local accumulation. In order to better achieve the above purpose, in the embodiment of the present invention, a left guide plate 16 and a right guide plate 17 are also provided in the sedimentation tank body 1. The left guide plate 16 is provided below the inclined plate mechanism 5 and is used to guide the sludge on the inclined plate 10 on the left side of the connecting block 13 to the sewage discharge mechanism 4; the right guide plate 17 is provided below the inclined plate mechanism 5 and is used to guide the sludge on the inclined plate 10 on the right side of the connecting block 13 to the sewage discharge mechanism 4. The sewage discharge mechanism 4 is provided between the left guide plate 16 and the right guide plate 17. Specifically, this structure ensures that the sludge can be effectively separated from the inclined plate surface and guided to the centralized treatment point, namely the sewage discharge mechanism 4. More specifically, the sewage discharge mechanism 4 is arranged between the left guide plate 16 and the right guide plate 17, so that the sludge from the guide plates on both sides is gathered at one point, which is convenient for centralized treatment and also makes the cleaning and maintenance of the sludge easier. When it is necessary to clean the inclined plate or perform maintenance, the sludge can be easily removed, reducing the difficulty of maintenance.

[0047] More preferably, the left guide plate 16 is tilted to the right, and the right guide plate 17 is tilted to the left, with the left guide plate 16 and the right guide plate 17 being axially symmetrically arranged. This axially symmetrical arrangement provides a balanced structural layout, helping to evenly distribute the sludge load on both sides of the inclined plates while smoothly guiding the sludge to the sewage discharge mechanism 4 in the central area. Of course, two axially symmetrical support legs 18 can also be arranged at the bottom of the sedimentation tank body 1. The axially symmetrical support legs 18 provide uniform support force, ensuring the stability of the sedimentation tank body 1 in any direction and preventing tilting or deformation caused by uneven ground or uneven load.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention. It should be noted that the structures and components illustrated in the accompanying drawings are not necessarily drawn to scale, and that descriptions of known components, processing techniques, and processes are omitted to avoid unnecessarily limiting the present invention.

Claims

1. A sloping plate sedimentation tank for sewage treatment, characterized in that: include: The sedimentation tank body (1) provides space for sewage sedimentation. The upper end of the sedimentation tank body (1) is provided with a drainage mechanism (2), the lower end thereof is provided with a water inlet mechanism (3), and the bottom thereof is provided with a sewage discharge mechanism (4); An inclined plate mechanism (5) is provided in the cavity of the sedimentation tank body (1) and is used for separating and settling sewage into separate chambers. The inclined plate mechanism (5) is located above the water inlet mechanism (3) and below the drainage mechanism (2); The stirring mechanism (6) comprises a stirring rod (8) and a stirring blade (7), wherein the stirring blade (7) is arranged at one end of the stirring rod (8), and the other end of the stirring rod (8) is located outside the sedimentation tank body (1) and can be driven by a motor to rotate, the stirring blade (7) is located inside the sedimentation tank body (1) and below the inclined plate mechanism (5), and the stirring rod (8) passes through the inclined plate mechanism (5).

2. The inclined plate sedimentation tank for sewage treatment according to claim 1, characterized in that: The inclined plate mechanism (5) comprises a support frame (9) and a plurality of inclined plates (10), wherein the support frame (9) is connected to the inner wall of the sedimentation tank body (1), and the inclined plates (10) are mounted on the support frame (9). An inclined sedimentation channel is formed between two adjacent inclined plates (10), and the sedimentation channel is connected to the entire space inside the sedimentation tank body (1).

3. The inclined plate sedimentation tank for sewage treatment according to claim 2, characterized in that: The support frame (9) comprises an upper frame (11) and a lower frame (12), wherein the middle portions of the upper frame (11) and the lower frame (12) are connected via a connecting block (13), and the upper end of a single inclined plate (10) is connected to the upper frame (11), and the lower end is connected to the lower frame (12).

4. The inclined plate sedimentation tank for sewage treatment according to claim 3, characterized in that: The stirring rod (8) tube passes through the connecting block (13); the stirring rod (8) can be vertically displaced relative to the connecting block (13) after being driven; a receiving groove (14) is provided at the lower end of the connecting block (13); the receiving groove (14) is used to accommodate the stirring blade (7).

5. The inclined plate sedimentation tank for sewage treatment according to claim 4, characterized in that: The stirring blade (7) is rectangular or cylindrical, the shape and size of the receiving groove (14) are adapted to the shape and size of the stirring blade (7), and when the stirring blade (7) is received by the receiving groove (14), the bottom surface of the stirring blade (7) is flush with the bottom surface of the connecting block (13).

6. The inclined plate sedimentation tank for sewage treatment according to claim 3, characterized in that: A plurality of relative limiting grooves (15) are provided on both sides of the upper frame (11), and the limiting grooves (15) are used to limit the position of a single inclined plate (10); a plurality of relative limiting grooves (15) are provided on both sides of the lower frame (12); The limiting groove (15) of the upper frame (11) opens downward, and the limiting groove (15) of the lower frame (12) opens upward. The limiting groove (15) of the upper frame (11) and the limiting groove (15) of the lower frame (12) are jointly configured to support the inclined plate (10) for tilted placement.

7. The inclined plate sedimentation tank for sewage treatment according to claim 6, characterized in that: The inclined plate (10) on the left side of the connecting block (13) is placed tilted to the left, and the inclined plate (10) on the right side of the connecting block (13) is placed tilted to the right.

8. The inclined plate sedimentation tank for sewage treatment according to claim 7, characterized in that: A left guide plate (16) and a right guide plate (17) are further provided in the sedimentation tank body (1). The left guide plate (16) is provided below the inclined plate mechanism (5) and is used to guide the sludge on the inclined plate (10) on the left side of the connecting block (13) to the sewage discharge mechanism (4). The right guide plate (17) is arranged below the inclined plate mechanism (5) and is used to guide the sludge on the inclined plate (10) on the right side of the connecting block (13) to the sewage discharge mechanism (4). The sewage discharge mechanism (4) is arranged between the left guide plate (16) and the right guide plate (17).

9. The inclined plate sedimentation tank for sewage treatment according to claim 8, characterized in that: The left guide plate (16) is arranged to be tilted to the right, and the right guide plate (17) is arranged to be tilted to the left. The left guide plate (16) and the right guide plate (17) are arranged axially symmetrically.

10. The inclined plate sedimentation tank for sewage treatment according to claim 1, characterized in that: Two supporting legs (18) are axially symmetrically provided at the bottom of the sedimentation tank body (1).

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