Sewage sedimentation tank

Abstract

The utility model discloses a sewage sedimentation tank, which belongs to the technical field of sewage treatment, and adopts the technical scheme that the sewage sedimentation tank is characterized by comprising a rectangular body, the interior of the body is divided into a water inlet area and a sedimentation area through a partition plate, and the upper end surface of the partition plate is flush with the upper end surface of the body; a boss is arranged at the other end of the interior of the body, a dirt discharge groove with the normally-open upper end is formed in the boss, and the upper end face of the dirt discharge groove is not higher than the lower end face of the partition plate; a water outlet communicated with the outside is formed in the side wall of the body and located in the settling zone, and the water outlet is located at the upper part of the body; a plurality of stirrers are rotationally arranged on the body and are positioned below the dirt discharge groove; a motor for driving the stirrer and a sludge pump are further included, and a sewage suction pipe inlet of the sludge pump extends into the bottom of the sewage discharge groove. The sewage sedimentation tank has the beneficial effect that the sewage sedimentation tank is provided.

Description

Technical Field

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

[0002] Sedimentation tanks are commonly used equipment in sewage treatment. Sedimentation tanks slow down the water flow and allow the solid particles suspended in the water to settle to the bottom, thereby separating the solid particles in the sewage. These solids include suspended matter, silt, etc., and through sedimentation, the water quality can be improved. Especially at construction sites, the sewage has a single component, mainly sand, and can generally be reused through simple sedimentation. Existing sedimentation tanks have been used for a long time, and a large amount of sludge and silt will remain at the bottom, which needs to be cleaned and treated regularly. When cleaning, the sludge is generally pumped out by a sludge pump and then treated. If the inlet of the sludge pump is directly extended into the bottom of the pool, the bottom particles are generally large, which can easily clog the sludge pump, affecting the sewage discharge efficiency and the service life of the sludge pump. Utility Model Content

[0003] The utility model aims to transform a sedimentation tank, design a sewage trough higher than the tank bottom, and clean part of the sludge in the sedimentation tank through the sewage trough.

[0004] The utility model is realized by the following measures: a sewage sedimentation tank, characterized in that it comprises a sedimentation tank, the sedimentation tank comprises a rectangular body, the interior of the body is divided into a water inlet area and a sedimentation area by a partition, the upper end surface of the partition is flush with the upper end surface of the body, the lower end surface of the partition is spaced from the bottom inner wall of the body, a boss is arranged at the other end of the body, a sewage trough with an upper end normally open is opened on the boss, and the upper end surface of the sewage trough is not higher than the lower end surface of the partition;

[0005] A drainage port communicating with the outside is opened on the side wall of the body and located in the sedimentation area, and the drainage port is located at the upper part of the body;

[0006] A plurality of agitators are rotatably arranged on the main body and below the sewage tank;

[0007] It also includes a motor for driving the agitator and a sludge pump, wherein the sewage suction pipe inlet of the sludge pump extends into the bottom of the sewage tank. The motor is a waterproof motor with a reducer, which is a prior art and will not be described in detail here.

[0008] Furthermore, the cross-sectional shape of the sewage trough is a trapezoid with a larger upper end and a smaller lower end.

[0009] Furthermore, a plurality of lower baffles and a plurality of upper baffles are arranged at intervals on the inner wall of the main body and above the sewage trough. The upper baffles are located above the lower baffles and have intervals therebetween. The upper baffles cover the intervals between two adjacent lower baffles. The top view orthographic projections of all the upper baffles and lower baffles cover the entire sedimentation area.

[0010] Furthermore, a water collecting pool is arranged on the outer wall of the main body, the water collecting pool is connected with the main body through the drain port, and a plurality of drain pipes connected with the outside are arranged at the bottom of the water collecting pool.

[0011] Furthermore, an installation cavity is provided on the boss and below the water collecting pool, the motor is provided in the installation cavity, and the shaft of the agitator passes through a sealing plate of the installation cavity and is rotatably provided on the sealing plate.

[0012] Furthermore, the other end of the shaft of the stirrer is rotatably arranged on the bottom plate of the body through a support plate, and the shaft is generally rotatably connected through a bearing.

[0013] Furthermore, the stirrer is a spiral stirrer or a paddle stirrer.

[0014] Usage: Sewage enters from the upper end of the water inlet area and flows into the sedimentation area from the bottom of the partition. Suspended solids and silt sink to the bottom of the sedimentation tank. Clean water flows into the water collection tank through the drain port and flows out through the drain pipe connected to the water collection tank.

[0015] When the sludge in the sedimentation tank needs to be cleaned, the motor can be started to drive the agitator to rotate. The agitator will stir up the sludge, and some solid particles will enter the top of the sewage tank and settle to the bottom of the sewage tank. When the sludge in the sewage tank reaches a certain height, it can be cleaned by starting the sludge pump. In this way, online real-time cleaning can be achieved, and the sludge in the sedimentation tank can be kept in a suitable state. In addition, after long-term use, in order to avoid excessive sludge in the sedimentation tank, and most of the particles stirred up by the agitator are small, in order to ensure the normal use of the sedimentation tank, it is also necessary to clean it with mechanical equipment.

[0016] In addition, after the agitator is stirring, in order to prevent too many particles from floating up, upper and lower baffles are set up, which can effectively reduce the floating of fixed particles and ensure the quality of the water output.

[0017] This application is generally used in construction sites where sewage has a single component and can be reused simply after sedimentation.

[0018] The technical solution provided by the embodiment of the utility model has the following beneficial effects: a sewage trough is designed to be higher than the bottom of the pool, part of the sludge and sediment is stirred up by an agitator, and the sludge in the sewage trough is continuously cleaned by a sludge pump. Since the outer diameter of the stirred up particles is small, the clogging of the sludge pump is avoided and the sediment can be cleaned online in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present utility model, a brief introduction will be given to the drawings used in the embodiments below. Obviously, the drawings listed below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the body after being cut open in the embodiment of the utility model;

[0022] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0023] In the attached drawings, the components represented by each number are listed as follows: 1. Main body; 2. Partition; 3. Water collecting tank; 4. Upper baffle; 5. Lower baffle; 6. Sewage suction pipe; 7. Drain pipe; 8. Boss; 9. Agitator; 10. Motor; 11. Drain outlet; 12. Sewage trough; 13. Installation cavity. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] See also Figure 1-Figure 3 A sewage sedimentation tank, characterized in that it includes a sedimentation tank, the sedimentation tank includes a rectangular body 1, the interior of the body 1 is divided into a water inlet area and a sedimentation area by a partition 2, the upper end surface of the partition 2 is flush with the upper end surface of the body 1, and there is a gap between the lower end surface of the partition 2 and the bottom inner wall of the body 1, and a boss 8 is provided at the other end of the body 1, and a sewage trough 12 with an upper end normally open is opened on the boss 8, and the upper end surface of the sewage trough 12 is not higher than the lower end surface of the partition 2;

[0026] A drainage port 11 communicating with the outside is opened on the side wall of the body 1 and located in the sedimentation area. The drainage port 11 is located at the upper part of the body 1;

[0027] A plurality of agitators 9 are rotatably arranged on the main body 1 and below the sewage tank 12;

[0028] It also includes a motor 10 for driving the agitator 9 and a sludge pump, and the inlet of the sludge pump's suction pipe 6 extends into the bottom of the sewage tank 12. The motor 10 is a waterproof motor 10 with a reducer, which is a prior art and will not be repeated here.

[0029] The cross-sectional shape of the sewage trough 12 is a trapezoid with a larger upper end and a smaller lower end.

[0030] A plurality of lower baffles 5 and a plurality of upper baffles 4 are arranged at intervals on the inner wall of the main body 1 and above the sewage trough 12. The upper baffles 4 are located above the lower baffles 5 and have intervals therebetween. The upper baffles 4 cover the intervals between two adjacent lower baffles 5. The top view orthographic projections of all the upper baffles 4 and the lower baffles 5 cover the entire sedimentation area.

[0031] A water collecting pool 3 is arranged on the outer wall of the main body 1 , and the water collecting pool 3 is connected with the main body 1 through a drain port 11 . A plurality of drain pipes 7 connected with the outside are arranged at the bottom of the water collecting pool 3 .

[0032] An installation cavity 13 is provided on the boss 8 and below the water collecting tank 3 . A motor 10 is provided in the installation cavity 13 . The shaft of the stirrer 9 passes through a sealing plate of the installation cavity 13 and is rotatably provided on the sealing plate.

[0033] The other end of the shaft of the stirrer 9 is rotatably arranged on the bottom plate of the body 1 through a support plate, and the shaft is generally rotatably connected through a bearing.

[0034] The stirrer 9 is a spiral stirrer 9 or a paddle stirrer 9 .

[0035] Usage: Sewage enters from the upper end of the water inlet area and flows into the sedimentation area from the bottom of the partition 2. Suspended solids and silt sink to the bottom of the sedimentation tank. Clean water flows into the water collection tank 3 through the drain port 11 and flows out through the drain pipe 7 connected to the water collection tank 3.

[0036] When the sludge in the sedimentation tank needs to be cleaned, the motor 10 can be started to drive the agitator 9 to rotate, and the agitator 9 stirs up the sludge, and some solid particles will enter the top of the sewage tank 12 and settle to the bottom of the sewage tank 12. After the sludge in the sewage tank 12 reaches a certain height, it can be cleaned by starting the sludge pump, so that online real-time cleaning can be achieved, and the sludge in the sedimentation tank can be kept in a suitable state. In addition, after long-term use, in order to avoid excessive sludge in the sedimentation tank, and most of the particles stirred up by the agitator 9 are small, in order to ensure the normal use of the sedimentation tank, it is also necessary to clean it by mechanical equipment.

[0037] In addition, after the stirrer 9 stirs, in order to prevent excessive particles from floating up, an upper baffle 4 and a lower baffle 5 are provided, which can effectively reduce the floating of fixed particles and ensure the quality of the water output.

[0038] This application is generally used in construction sites where sewage has a single component and can be reused simply after sedimentation.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage sedimentation tank, characterized in that: The utility model comprises a rectangular body, wherein the interior of the body is divided into a water inlet area and a sedimentation area by a partition, wherein the upper end surface of the partition is flush with the upper end surface of the body, and there is a gap between the lower end surface of the partition and the bottom inner wall of the body, and a boss is arranged at the other end of the interior of the body, and a sewage trough with an upper end normally open is opened on the boss, and the upper end surface of the sewage trough is not higher than the lower end surface of the partition; A drainage port communicating with the outside is opened on the side wall of the body and located in the sedimentation area, and the drainage port is located at the upper part of the body; A plurality of agitators are rotatably arranged on the main body and below the sewage tank; It also includes a motor for driving the agitator and a sludge pump, wherein the sewage suction pipe inlet of the sludge pump extends into the bottom of the sewage tank.

2. The sewage sedimentation tank according to claim 1, characterized in that: The cross-sectional shape of the sewage trough is a trapezoid with a larger upper end and a smaller lower end.

3. The sewage sedimentation tank according to claim 1, characterized in that: A plurality of lower baffles and a plurality of upper baffles are arranged at intervals on the inner wall of the main body and above the sewage trough. The upper baffles are located above the lower baffles and have intervals therebetween. The upper baffles cover the intervals between two adjacent lower baffles. The top view orthographic projections of all the upper baffles and lower baffles cover the entire sedimentation area.

4. The sewage sedimentation tank according to claim 1, characterized in that: A water collecting pool is arranged on the outer wall of the main body, the water collecting pool is communicated with the main body through the drain port, and a plurality of drain pipes communicated with the outside are arranged at the bottom of the water collecting pool.

5. The sewage sedimentation tank according to claim 4, characterized in that: An installation cavity is provided on the boss and below the water collecting tank, the motor is provided in the installation cavity, and the shaft of the stirrer passes through a sealing plate of the installation cavity and is rotatably provided on the sealing plate.

6. The sewage sedimentation tank according to claim 5, characterized in that: The other end of the shaft of the stirrer is rotatably arranged on the bottom plate of the body through a supporting plate.

7. The sewage sedimentation tank according to any one of claims 1 to 6, characterized in that: The stirrer is a spiral stirrer or a paddle stirrer.

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