Multistage sewage sedimentation tank

By setting up a cyclone precipitation mechanism and pushing assembly in a multi-stage sewage sedimentation tank, the sewage flow rate is increased, so that the sewage flows spiral in the cyclone, and the impurity precipitation is achieved by using centrifugal force, which solves the problem of slow sewage flow rate in the prior art. The long time of impurities precipitation of impurities in sewage has been solved, and the efficient precipitation of impurities in sewage is achieved.

CN222286475UActive Publication Date: 2025-01-03JIANGXI FIVE THOUSAND YEARS AGO ECOLOGICAL TECH CO LTD
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Patent Information

Application Number
CN202420879283.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-25
Publication Date
2025-01-03
Estimated Expiration
2034-04-25

AI Technical Summary

Technical Problem

In the existing multi-stage sewage sedimentation tank, the sewage flows from the first-stage tank into the second-stage tank is slow, resulting in a long time of impurities precipitation, making it difficult to efficiently complete the sedimentation of impurities in the sewage.

Method used

Design a multi-stage sewage sedimentation tank, including a first-stage, a second-stage and a third-stage tank. A cyclone sedimentation mechanism is installed in the secondary tank, which increases the sewage flow rate through conduction pipes and push-through components, so that the sewage is present in the cyclone tank. The flow is spiral, impurity precipitation is carried out using centrifugal force, and the flow rate and precipitation effect are further improved through the inclined cyclone.

Benefits of technology

The sewage flow rate and impurity precipitation efficiency are improved, the impurity precipitation time is shortened, and the efficient precipitation of impurities in the sewage is achieved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a multi-stage sewage sedimentation tank, and aims to solve the problems that sewage entering a second-stage tank from a first-stage tank does not have stronger kinetic energy, so that the flowing speed of the sewage is lower, the flowing speed of the sewage in the second-stage tank is lower, the sedimentation time of impurities in the sewage is longer, and the sedimentation efficiency of the impurities in the sewage is higher in the current multi-stage sewage sedimentation tank. The sewage treatment device comprises a first-stage tank, a second-stage tank and a third-stage tank, a rotational flow sedimentation mechanism is arranged in the center of the bottom end in the second-stage tank, and the rotational flow sedimentation mechanism is communicated with the first-stage tank; the top of one side, far away from the first-stage tank, of the second-stage tank is provided with a plurality of communicating grooves communicated with the third-stage tank at equal intervals, the rotational flow sedimentation mechanism comprises a rotational flow tank, the flow speed of sewage can be increased, the sewage flows spirally, impurities in the sewage are separated and settled through centrifugal force, and the sewage treatment efficiency is improved. The precipitation time of impurities in the sewage is shortened, and the impurities in the sewage can be efficiently precipitated.
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Description

Technical Field

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

[0002] Sedimentation treatment is a basic process in the sewage treatment process. It separates suspended matter by using the density difference between suspended matter and water. Its operating conditions directly affect the effluent quality. Common sedimentation structures used after sewage biochemical treatment include inlet pipe horizontal flow sedimentation tanks, vertical flow sedimentation tanks and ordinary radial flow sedimentation tanks. At present, large and medium-sized sewage treatment plants mostly use ordinary radial flow sedimentation tanks and horizontal flow sedimentation tanks for mud and water separation. In recent years, double-layer horizontal flow sedimentation tanks and three-layer horizontal flow sedimentation tanks have appeared, saving land and investment. However, this type of tank is only used in the purification of slightly polluted water sources and has not been widely used in the sewage treatment process.

[0003] At present, a multi-stage sewage sedimentation tank in the sewage treatment process generally adopts a multi-tank arrangement, which is gradually discharged after continuous sedimentation. In order to improve the sedimentation effect, the secondary sedimentation tank is mostly set as a ring structure, and the primary tank transports the sewage after the primary sedimentation to the center of the secondary tank.

[0004] However, in a multi-stage sewage sedimentation tank in the prior art, during the sewage sedimentation treatment process, the sewage entering the secondary tank from the primary tank does not have strong kinetic energy, resulting in a slow flow rate of the sewage. The slow flow rate of the sewage in the secondary tank causes a long precipitation time for impurities in the sewage, making it difficult to efficiently complete the precipitation of impurities in the sewage. In view of this, we propose a multi-stage sewage sedimentation tank. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, meet actual needs, and provide a multi-stage sewage sedimentation tank to solve the current multi-stage sewage sedimentation tank, in which the sewage entering the secondary tank from the first tank does not have strong kinetic energy, resulting in a slow flow rate of the sewage, which makes the flow rate of the sewage in the secondary tank slow, resulting in a long precipitation time of impurities in the sewage, making it difficult to efficiently complete the technical problem of precipitation of impurities in the sewage.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: design a multi-stage sewage sedimentation tank, including a primary tank, a secondary tank, and a tertiary tank;

[0007] A cyclone sedimentation mechanism is provided at the bottom center of the secondary pool, and the cyclone sedimentation mechanism is connected to the primary pool, and a plurality of conducting grooves connected to the tertiary pool are equidistantly provided at the top of the secondary pool away from the primary pool;

[0008] The cyclone sedimentation mechanism comprises a cyclone pool fixedly arranged at the bottom center of the secondary pool, one side of the outer edge surface of the cyclone pool is obliquely connected to a conducting pipe for making the sewage spirally flow in the cyclone pool, and one end of the conducting pipe away from the cyclone pool is connected to the primary pool, and a plurality of cyclone grooves connected to the secondary pool are arranged in a circular array on the top of the outer edge surface of the cyclone pool, and the plurality of cyclone grooves are all obliquely arranged;

[0009] The conducting pipe is provided with a flow-pushing assembly installed on the top of the primary pool. The flow-pushing assembly includes a driving mechanism fixed to the top of the primary pool, a blade mechanism and a transmission belt arranged in the conducting pipe for pushing the movement of sewage. Power is transmitted between the driving mechanism and the blade mechanism through the transmission belt.

[0010] Preferably, the blade mechanism comprises a transmission shaft, the transmission shaft is arranged at the center of the guide tube, and a plurality of transmission impellers are equidistantly arranged on one side of the outer edge surface of the blade mechanism.

[0011] Preferably, a pulley B is fixedly mounted on one side of the outer edge surface of the transmission shaft, and brackets are rotatably mounted on both sides of the outer edge surface of the transmission shaft, and the brackets are fixedly arranged in the conducting tube.

[0012] Preferably, the driving mechanism includes a base and a support fixed to one side of the base, a support is rotatably provided on the outer edge surface of the support, and a servo motor is rotatably provided on the outer edge surface of the support, a pulley A is fixedly installed on one end of the motor shaft of the servo motor, and the pulley A is connected to the pulley B through the transmission belt.

[0013] Preferably, a threaded rod is hingedly installed in the center of the side of the bottom end of the support away from the support, and an axle rod is rotatably provided on the outer edge surface of the threaded rod, a hinge seat is rotatably installed on one end of the outer edge surface of the axle rod, and the hinge seat is constructed on one side of the bottom end of the support.

[0014] Preferably, two fastening nuts are threadedly mounted on the outer edge surface of the threaded rod, and the two fastening nuts are respectively abutted against two sides of the shaft rod.

[0015] Preferably, a plurality of water inlets are equidistantly provided at the top of the first-level pool on a side away from the second-level pool, and input pipes are fixedly installed in the plurality of water inlets; a plurality of water outlets are equidistantly provided at the top of the tertiary pool on a side away from the second-level pool, and output pipes are fixedly installed in the plurality of water outlets.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model completes multi-stage sedimentation of sewage through a primary pool, a secondary pool, and a tertiary pool, and the sewage entering the secondary pool from the primary pool first enters the cyclone pool through a guide pipe, and the driving mechanism cooperates with the transmission belt to drive the blade mechanism to rotate in the guide pipe, thereby increasing the flow rate of the sewage entering the cyclone pool through the guide pipe, increasing the kinetic energy of the sewage when entering the cyclone pool, and then increasing the flow rate of the sewage, so that the sewage flows in a spiral shape in the cyclone pool, and the impurities in the sewage are separated and precipitated by centrifugal force, shortening the precipitation time of the impurities in the sewage, and efficiently completing the precipitation of impurities in the sewage.

[0018] 2. The utility model pre-treats the sewage entering the secondary pool through a cyclone pool, and the treated sewage is discharged through a plurality of cyclone grooves arranged obliquely, so that the sewage discharged through the plurality of cyclone grooves pushes the sewage in the secondary pool to move in a spiral manner, further increasing the flow rate of the sewage in the secondary pool, thereby further improving the effect of precipitation of impurities in the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the cyclone sedimentation mechanism in the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the push flow assembly in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the blade mechanism in the utility model;

[0024] Figure 6 It is a partial structural sectional view of the driving mechanism in the utility model.

[0025] In the figure: 1. primary pool; 2. secondary pool; 3. tertiary pool; 4. vortex pool; 401. vortex trough; 5. guide pipe; 6. flow push assembly; 601. transmission belt; 7. driving mechanism; 701. base; 702. support; 703. support platform; 704. servo motor; 705. pulley A; 706. threaded rod; 707. shaft rod; 708. hinge seat; 709. fastening nut; 8. blade mechanism; 801. transmission shaft; 802. transmission impeller; 803. pulley B; 804. bracket; 9. input pipe; 10. output pipe. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0027] Example: A multi-stage sewage sedimentation tank, see Figure 1 , Figure 2 , including a primary pool 1, a secondary pool 2, and a tertiary pool 3, wherein the primary pool 1 is provided with a plurality of water inlets at equal intervals on the top of a side away from the secondary pool 2, and an input pipe 9 is fixedly arranged in each of the plurality of water inlets, and the tertiary pool 3 is provided with a plurality of water outlets at equal intervals on the top of a side away from the secondary pool 2, and an output pipe 10 is fixedly arranged in each of the plurality of water outlets;

[0028] Furthermore, in order to further improve the effect of precipitation of impurities in sewage, see Figure 1 , Figure 2 , Figure 3 A cyclone sedimentation mechanism is provided at the bottom center of the secondary pool 2, and the cyclone sedimentation mechanism is connected to the primary pool 1. A plurality of conducting grooves connected to the tertiary pool 3 are equidistantly provided at the top of the secondary pool 2 away from the primary pool 1. The cyclone sedimentation mechanism includes a cyclone pool 4 fixedly provided at the bottom center of the secondary pool 2, and a conducting pipe 5 for making the sewage spirally flow in the cyclone pool 4 is obliquely connected to one side of the outer edge surface of the cyclone pool 4, and the conducting pipe 5 is connected to the one end away from the cyclone pool 4. The secondary pool 1 is provided with a plurality of cyclone grooves 401 connected to the secondary pool 2 in a circular array on the top of the outer edge surface of the cyclone pool 4, and the plurality of cyclone grooves 401 are all arranged obliquely. The sewage entering the secondary pool 2 is pre-treated by the cyclone pool 4, and the treated sewage is discharged through the plurality of obliquely arranged cyclone grooves 401, so that the sewage discharged through the plurality of cyclone grooves 401 pushes the sewage in the secondary pool 2 to move in a spiral manner, further increasing the flow rate of the sewage in the secondary pool 2, thereby further improving the effect of precipitation of impurities in the sewage.

[0029] Furthermore, in order to shorten the sedimentation time of impurities in sewage, see Figure 2 , Figure 4 , Figure 5 , Figure 6The conducting pipe 5 is provided with a flow-pushing assembly 6 installed on the top of the primary pool 1. The flow-pushing assembly 6 includes a driving mechanism 7 fixed on the top of the primary pool 1, a blade mechanism 8 and a transmission belt 601 arranged in the conducting pipe 5 for promoting the movement of sewage. The driving mechanism 7 and the blade mechanism 8 are powered by the transmission belt 601. The blade mechanism 8 includes a transmission shaft 801, which is arranged at the center of the conducting pipe 5, and a plurality of transmission impellers 802 are equidistantly arranged on one side of the outer edge surface of the blade mechanism 8. A pulley B803 is fixedly installed on one side of the outer edge surface of the transmission shaft 801, and brackets 804 are rotatably installed on both sides of the outer edge surface of the transmission shaft 801. The bracket 804 is fixedly arranged in the conducting pipe 5. The driving mechanism 7 includes a base 701 and a support 702 fixed on one side of the base 701. A support 703 is rotatably arranged on the outer edge surface of the support 702, and a servo motor 70 is rotatably arranged on the outer edge surface of the support 703. 4. A pulley A705 is fixedly installed at one end of the motor shaft of the servo motor 704, and the pulley A705 is connected to the pulley B803 through the transmission belt 601, and the multi-stage sedimentation of the sewage is completed through the primary pool 1, the secondary pool 2, and the tertiary pool 3. The sewage entering the secondary pool 2 from the primary pool 1 first enters the cyclone pool 4 through the guide pipe 5, and the pulley A705 is driven to rotate by the servo motor 704, thereby driving the transmission shaft 801 equipped with the pulley B803 to rotate with the help of the transmission belt 601, thereby driving multiple transmission impellers 802 to rotate in the guide pipe 5, thereby pushing the sewage into the cyclone pool 4, thereby increasing the flow rate of the sewage entering the cyclone pool 4 through the guide pipe 5, increasing the kinetic energy of the sewage when entering the cyclone pool 4, and then increasing the flow rate of the sewage, so that the sewage flows in the cyclone pool 4 in a spiral shape, and the impurities in the sewage are separated and precipitated by centrifugal force, shortening the precipitation time of the impurities in the sewage, and efficiently completing the precipitation of impurities in the sewage.

[0030] Furthermore, in order to adjust the tension of the transmission belt 601 to ensure the stability of power transmission, see Figure 4 , Figure 6A threaded rod 706 is hingedly installed in the center of one side of the bottom end of the support 703 away from the support 702, and an axle rod 707 is rotatably arranged on the outer edge surface of the threaded rod 706, and an articulated seat 708 is rotatably installed on one end of the outer edge surface of the axle rod 707, and the articulated seat 708 is constructed on one side of the bottom end of the support 703, and two fastening nuts 709 are threadedly installed on the outer edge surface of the threaded rod 706, and the two fastening nuts 709 are respectively abutted against the two sides of the axle rod 707. By adjusting the positions of the two fastening nuts 709, the length of the threaded rod 706 passing through the axle rod 707 can be adjusted, and then the lifting angle of the support 703 can be adjusted, thereby realizing the tension adjustment of the transmission belt 601 and ensuring the stability of power transmission.

[0031] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A multi-stage sewage sedimentation tank, characterized in that: It includes the primary pool (1), the secondary pool (2), and the tertiary pool (3); A cyclone sedimentation mechanism is arranged at the center of the bottom end of the secondary pool (2), and the cyclone sedimentation mechanism is connected to the primary pool (1); a plurality of conducting grooves connected to the tertiary pool (3) are equidistantly arranged at the top of the secondary pool (2) on a side away from the primary pool (1); The cyclone sedimentation mechanism comprises a cyclone pool (4) fixedly arranged at the bottom center of the secondary pool (2), one side of the outer edge surface of the cyclone pool (4) is obliquely connected to a conducting pipe (5) for causing sewage to spirally flow in the cyclone pool (4), and one end of the conducting pipe (5) away from the cyclone pool (4) is connected to the primary pool (1), and a plurality of cyclone grooves (401) connected to the secondary pool (2) are formed in a circular array at the top of the outer edge surface of the cyclone pool (4), and the plurality of cyclone grooves (401) are all obliquely arranged; The guide pipe (5) is provided with a flow-pushing assembly (6) installed on the top of the primary pool (1), and the flow-pushing assembly (6) comprises a driving mechanism (7) fixed on the top of the primary pool (1), a blade mechanism (8) provided in the guide pipe (5) for pushing the movement of sewage, and a transmission belt (601), wherein power is transmitted between the driving mechanism (7) and the blade mechanism (8) via the transmission belt (601).

2. A multi-stage sewage sedimentation tank as claimed in claim 1, characterized in that: The blade mechanism (8) comprises a transmission shaft (801), the transmission shaft (801) is arranged at the center of the guide tube (5), and a plurality of transmission impellers (802) are equidistantly arranged on one side of the outer edge surface of the blade mechanism (8).

3. A multi-stage sewage sedimentation tank as claimed in claim 2, characterized in that: A pulley B (803) is fixedly mounted on one side of the outer edge surface of the transmission shaft (801), and brackets (804) are rotatably mounted on both sides of the outer edge surface of the transmission shaft (801), and the brackets (804) are fixedly arranged in the conduction pipe (5).

4. A multi-stage sewage sedimentation tank as claimed in claim 3, characterized in that: The driving mechanism (7) comprises a base (701) and a support (702) fixed to one side of the base (701); a support platform (703) is rotatably provided on the outer edge surface of the support platform (702); and a servo motor (704) is rotatably provided on the outer edge surface of the support platform (703); a pulley A (705) is fixedly installed on one end of the motor shaft of the servo motor (704); and the pulley A (705) is connected to the pulley B (803) via the transmission belt (601).

5. A multi-stage sewage sedimentation tank as claimed in claim 4, characterized in that: A threaded rod (706) is hingedly mounted in the center of one side of the bottom end of the support platform (703) away from the support (702), and an axle rod (707) is rotatably mounted on the outer edge surface of the threaded rod (706), and a hinge seat (708) is rotatably mounted on one end of the outer edge surface of the axle rod (707), and the hinge seat (708) is constructed on one side of the bottom end of the support platform (703).

6. A multi-stage sewage sedimentation tank as claimed in claim 5, characterized in that: Two fastening nuts (709) are threadedly mounted on the outer edge surface of the threaded rod (706), and the two fastening nuts (709) are respectively abutted against two sides of the shaft rod (707).

7. A multi-stage sewage sedimentation tank as claimed in claim 1, characterized in that: The top of the first-stage pool (1) on a side away from the second-stage pool (2) is provided with a plurality of water inlets at equal distances, and input pipes (9) are fixedly arranged in the plurality of water inlets; the top of the third-stage pool (3) on a side away from the second-stage pool (2) is provided with a plurality of water outlets at equal distances, and output pipes (10) are fixedly arranged in the plurality of water outlets.