Sedimentation tank for domestic sewage treatment

Abstract

The utility model relates to a settling pond for domestic sewage treatment, which comprises a box body, a floating pond and a settling pond are arranged in the box body, a water inlet tank is arranged on the box body above the floating pond, one side of the outer part of the box body is connected with a No.1 filter cartridge and a No.2 filter cartridge, and a No.2 delivery pipe is connected between the bottom of the No.1 filter cartridge and the top of the No.2 filter cartridge; a primary filter cartridge is rotatably connected to the inside of the water inlet tank, a floating block is movably connected to the side, located outside the water inlet tank, of the primary filter cartridge, and a first sealing cone is arranged at a water outlet of the primary filter cartridge. The filter screen is prevented from being blocked quickly due to single filtering, and frequent cleaning is not needed; heavy impurities and light impurities in the sewage can be respectively separated by the floating tank and the sedimentation tank, so that the sewage treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, specifically to a sedimentation tank for treating domestic sewage. Background Technology

[0002] In daily life, a large amount of domestic sewage is generated. In rural areas and other places where there are no centralized collection systems such as sewers, the sewage can only be discharged directly. However, domestic sewage contains a lot of impurities, and direct discharge will cause environmental pollution. Therefore, preliminary treatment is required before discharge. In existing technologies, traditional domestic sewage treatment mostly involves simple filtration. With the passage of time, the filter screen is prone to clogging, which leads to a decrease in treatment efficiency and requires frequent cleaning of the filter screen. To address this, a sedimentation tank for domestic sewage treatment is proposed to improve both treatment efficiency and treatment effect. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems by providing a sedimentation tank for domestic sewage treatment.

[0004] The technical solution adopted by this utility model to solve the technical problem is: a sedimentation tank for domestic sewage treatment, including a tank body, the inside of which is provided with a floating tank and a sedimentation tank, an inlet tank located above the floating tank, a first filter cartridge and a second filter cartridge connected to the outside of the tank body, a second conveying pipe connected between the bottom of the first filter cartridge and the top of the second filter cartridge, a primary filter cartridge rotatably connected inside the inlet tank, a float movably connected to the outside of the primary filter cartridge, and a first sealing cone provided at the outlet of the primary filter cartridge.

[0005] As a preferred technical solution of this utility model, the top of the first filter cylinder is connected to the first conveying pipe, which is connected to the bottom of the flotation tank, and the bottom of the second filter cylinder is connected to the third conveying pipe, which is connected to the top of the sedimentation tank.

[0006] As a preferred technical solution of this utility model, filter frames are fixedly connected inside the floating pool and the sedimentation pool, respectively, at the positions of the No. 1 conveying pipe and the No. 3 conveying pipe, and filter screens are detachably connected inside the filter frames.

[0007] As a preferred technical solution of this utility model, the water inlet tank is provided with an inlet pipe at a position relative to the first sealing cone, a spring is fixedly connected between the first sealing cone and the inlet pipe, the first sealing cone is inserted into the outlet of the primary filter cartridge, and a second sealing cone is fixedly connected to one end of the first sealing cone near the inlet pipe, and the second sealing cone is inserted into the inlet pipe.

[0008] As a preferred embodiment of this utility model, a water outlet pipe is provided on the side of the tank near the sedimentation tank, and the water outlet pipe is connected to the bottom of the sedimentation tank.

[0009] As a preferred embodiment of this utility model, the connecting rod at the top of the float is slidably connected to the outer wall of the inlet tank, and a transmission plate is rotatably connected to the top of the connecting rod of the float. The end of the transmission plate away from the float is rotatably connected to the primary filter cartridge.

[0010] The present invention has the following advantages: The device is equipped with a flotation tank and a sedimentation tank, which, together with the pretreatment of the inlet tank, achieves the purpose of graded treatment of sewage, avoiding the rapid clogging of the filter screen caused by single filtration and eliminating the need for frequent cleaning; the flotation tank and the sedimentation tank can separate heavier and lighter impurities in the sewage respectively, thereby improving the sewage treatment effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the connection structure of the filter cartridge according to a preferred embodiment of the present invention;

[0012] Figure 2 This is a top view of a preferred embodiment of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of the water inlet tank according to a preferred embodiment of the present invention;

[0014] Figure 4 This is a cross-sectional structural diagram of the water inlet tank according to a preferred embodiment of the present invention.

[0015] Explanation of reference numerals in the attached diagram: 1. Box body; 2. Floating tank; 3. Sedimentation tank; 4. Inlet tank; 5. Primary filter cartridge; 6. Float; 7. Transmission plate; 8. Filter cartridge No. 1; 9. Filter cartridge No. 2; 10. Conveyor pipe No. 1; 11. Conveyor pipe No. 2; 12. Conveyor pipe No. 3; 13. Filter screen frame; 14. Outlet pipe; 15. Inlet pipe; 16. Spring; 17. Sealing cone No. 1; 18. Sealing cone No. 2. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Please refer to the following: Figure 1-4 This utility model discloses a sedimentation tank for domestic sewage treatment, comprising a tank body 1, inside which are a floating tank 2 and a sedimentation tank 3. Above the floating tank 2, the tank body 1 is provided with an inlet tank 4. A first filter cartridge 8 and a second filter cartridge 9 are connected to one side of the outside of the tank body 1. A second conveying pipe 11 is connected between the bottom of the first filter cartridge 8 and the top of the second filter cartridge 9. A primary filter cartridge 5 is rotatably connected inside the inlet tank 4. A float 6 is movably connected to the outside of the primary filter cartridge 5. A first sealing cone 17 is provided at the outlet of the primary filter cartridge 5.

[0020] The top of filter cartridge 8 is connected to conveying pipe 10, which connects to the bottom of floating tank 2. The bottom of filter cartridge 9 is connected to conveying pipe 12, which connects to the top of sedimentation tank 3. Filter frames 13 are fixedly connected inside both floating tank 2 and sedimentation tank 3, respectively, at the positions of conveying pipe 10 and conveying pipe 12. Filter frames 13 are detachably connected to filter screens. Through multiple filter screens, the wastewater is purified sequentially. Inlet tank 4 has an inlet pipe 15 located opposite sealing cone 17. A spring 16 is fixedly connected between sealing cone 17 and inlet pipe 15. Sealing cone 17 is inserted into the outlet of primary filter cartridge 5. The end of sealing cone 17 closest to inlet pipe 15 is connected to the inlet pipe 15. A second sealing cone 18 is fixedly connected and inserted into the inlet pipe 15. The connecting rod at the top of the float 6 is slidably connected to the outer wall of the inlet tank 4. A transmission plate 7 is rotatably connected to the top of the connecting rod of the float 6. The end of the transmission plate 7 away from the float 6 is rotatably connected to the primary filter cartridge 5. When the liquid level in the floating pool 2 rises, the float 6 rises under the action of buoyancy. Through the pull of the transmission plate 7, the primary filter cartridge 5 rotates in the opposite direction. The outlet of the primary filter cartridge 5 rotates to the position of the first sealing cone 17. After squeezing the spring 16, the first sealing cone 17 is inserted into the outlet of the primary filter cartridge 5, and the second sealing cone 18 is inserted into the inlet pipe 15 to prevent sewage from continuously flowing in. An outlet pipe 14 is opened on the side of the tank 1 near the sedimentation tank 3. The outlet pipe 14 is connected to the bottom of the sedimentation tank 3.

[0021] Specifically, when using this utility model, the sewage discharge pipe is connected to the primary filter cartridge 5. During sewage discharge, the liquid level inside the floating pool 2 is low, and the float 6 slides downward. The transmission plate 7 pulls the primary filter cartridge 5 downward to rotate, so that the outlet of the primary filter cartridge 5 faces downward and leaves the first sealing cone 17. The sewage enters the inlet tank 4 and flows into the floating pool 2 through the inlet pipe 15. The lighter impurities in the sewage in the floating pool 2 float on the top, while the sewage at the bottom enters the first filter cartridge 8 through the first conveying pipe 10. When passing through the first conveying pipe 10, the larger impurities in the sewage are filtered by the filter screen in the filter frame 13. The smaller particles of impurities continue to float on the top in the first filter cartridge 8 and the second filter cartridge 9. The sewage then enters the sedimentation tank 3 through the third conveying pipe 12 and is discharged through the outlet pipe 14, thus achieving the purpose of stratified filtration of sewage.

[0022] As the filtration and sedimentation time increases, the filter screen becomes clogged, the liquid level in the flotation tank 2 rises, and the float 6 rises under the action of buoyancy. Through the pull of the transmission plate 7, the primary filter cylinder 5 rotates in the opposite direction. The outlet of the primary filter cylinder 5 rotates to the position of the first sealing cone 17. After squeezing the spring 16, the first sealing cone 17 is inserted into the outlet of the primary filter cylinder 5, and the second sealing cone 18 is inserted into the inlet pipe 15, preventing sewage from continuously flowing in and facilitating the cleaning of the filter screens of the flotation tank 2 and the sedimentation tank 3.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0024] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sedimentation tank for treating domestic sewage, characterized in that, The system includes a housing (1), inside which are a floating pool (2) and a sedimentation pool (3). Above the floating pool (2), the housing (1) has an inlet tank (4). On the outside of the housing (1), a first filter cylinder (8) and a second filter cylinder (9) are connected. A second conveying pipe (11) is connected between the bottom of the first filter cylinder (8) and the top of the second filter cylinder (9). Inside the inlet tank (4), a primary filter cylinder (5) is rotatably connected. On the outside of the inlet tank (4), a float (6) is movably connected. The outlet of the primary filter cylinder (5) is equipped with a first sealing cone (17).

2. A sedimentation tank for domestic sewage treatment as described in claim 1, characterized in that, The top of the first filter cylinder (8) is connected to the first conveying pipe (10), which is connected to the bottom of the floating pool (2). The bottom of the second filter cylinder (9) is connected to the third conveying pipe (12), which is connected to the top of the sedimentation tank (3).

3. A sedimentation tank for domestic sewage treatment as described in claim 1, characterized in that, The floating pool (2) and the sedimentation pool (3) are both fixedly connected to filter frames (13) at the positions of the first conveying pipe (10) and the third conveying pipe (12), respectively. The filter frames (13) are detachably connected to filter screens.

4. A sedimentation tank for domestic sewage treatment as described in claim 1, characterized in that, The water inlet tank (4) has an inlet pipe (15) at a position relative to the first sealing cone (17). A spring (16) is fixedly connected between the first sealing cone (17) and the inlet pipe (15). The first sealing cone (17) is inserted into the outlet of the primary filter cartridge (5). A second sealing cone (18) is fixedly connected to one end of the first sealing cone (17) near the inlet pipe (15). The second sealing cone (18) is inserted into the inlet pipe (15).

5. A sedimentation tank for domestic sewage treatment as described in claim 1, characterized in that, The box (1) has an outlet pipe (14) on the side near the sedimentation tank (3), and the outlet pipe (14) is connected to the bottom of the sedimentation tank (3).

6. A sedimentation tank for domestic sewage treatment as described in claim 1, characterized in that, The connecting rod at the top of the float (6) is slidably connected to the outer wall of the water inlet tank (4). The top of the connecting rod of the float (6) is rotatably connected to a transmission plate (7). The end of the transmission plate (7) away from the float (6) is rotatably connected to the primary filter cartridge (5).

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