High-efficiency cyclone and inclined pipe combined sewage treatment sedimentation tank

Abstract

The utility model relates to sewage treatment technical field, concretely relates to a high -efficient cyclone and inclined pipe combined sewage treatment sedimentation tank, including the pool body, the water inlet, the water outlet that set up in the pool body side wall and close to the pool body top position department, set up in the pool body inside inclined pipe, inclined pipe blowing pipe, sludge collection pipe, wherein, the pool body designs into the upside wide, bottom narrow inverted convex character shape, and, the upper portion of in the pool body is defined as the sedimentation area, and the bottom is defined as sludge collection area, the inclined pipe sets up in the sedimentation area, the inclined pipe blowing pipe sets up in the lower extreme of the inclined pipe, the sludge collection pipe sets up in the sludge collection area, the inside of the pool body still is provided with sewage water distribution pipe. Rely on the centrifugal force and the auxiliary action of inclined pipe that cyclone produced, have accelerated the sedimentation rate of suspended solids in sewage, have improved the sedimentation effect, make this sewage treatment sedimentation tank have excellent treatment effect and treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a high-efficiency vortex and inclined tube combined wastewater treatment sedimentation tank. Background Technology

[0002] Municipal wastewater often contains large amounts of suspended solids such as sand, sludge, and various types of garbage. Failure to effectively remove these suspended solids in a timely manner will adversely affect the treatment efficiency of subsequent wastewater treatment processes, making it difficult for the treated water to meet discharge standards. In the field of wastewater treatment, common sedimentation tank types include horizontal flow sedimentation tanks, vertical flow sedimentation tanks, inclined plate sedimentation tanks, and inclined tube sedimentation tanks. However, these sedimentation tanks have relatively limited functionality in removing sand, sludge, or other suspended solids, and their actual operating results are often unsatisfactory. To achieve ideal treatment results, a series combination process is usually required; however, this not only significantly increases the land area required but also substantially raises wastewater treatment costs.

[0003] Patent application number 202220257913.1 discloses a horizontal flow inclined tube combined sedimentation tank device. By dividing the sedimentation zone into a combination of horizontal flow sedimentation tank and inclined tube sedimentation tank, the device utilizes the weight of suspended solids to improve sedimentation efficiency and accelerate the sedimentation rate, resulting in faster and better wastewater treatment. However, because the inclined tubes of this device are set on a triangular apex outlet block, the triangular apex outlet block is prone to collapse during long-term operation, leading to a decrease in the overall stability of the device and indirectly limiting its treatment capacity to some extent. Furthermore, this device has high requirements for influent water quality and is not adaptable to fluctuations in influent water quality. When parameters such as influent suspended solids concentration and sediment particle size distribution deviate from the design conditions, sedimentation efficiency fluctuations or even a decrease in treatment capacity are likely to occur. This device also faces problems such as high cleaning and maintenance costs.

[0004] This invention provides a high-efficiency vortex and inclined tube combined wastewater treatment sedimentation tank to solve the problems of limited treatment capacity, high requirements for influent water quality, and high maintenance costs of existing sedimentation tank equipment. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency vortex and inclined tube combined wastewater treatment sedimentation tank to solve the problems of limited treatment capacity, high requirements for influent water quality, and high maintenance costs of existing sedimentation tank equipment.

[0006] The technical solution of this utility model is: a high-efficiency vortex and inclined tube combined sewage treatment sedimentation tank, including a tank body, an inlet and an outlet set on the side wall of the tank body and near the top of the tank body, and an inclined tube, an inclined tube purge pipe and a sludge collection pipe set inside the tank body.

[0007] The pool body is designed in an inverted U-shape, wider at the top and narrower at the bottom. The upper part of the pool body is set as a sedimentation zone, and the bottom part is set as a sludge collection zone.

[0008] The inclined tube is disposed within the sedimentation zone; the inclined tube purge pipe is disposed at the lower end of the inclined tube; and the sludge collection pipe is disposed within the sludge collection zone.

[0009] The pool body is also equipped with a sewage distribution pipe; the input end of the sewage distribution pipe is connected to the water inlet.

[0010] Preferably, the inclined tube includes a first inclined tube and a second inclined tube; the flow direction of the first inclined tube is downward or upward; the flow direction of the second inclined tube is opposite to that of the first inclined tube.

[0011] Preferably, the interior of the pool is provided with an L-shaped water outlet weir plate; one end of the water outlet weir plate is connected to the inner side wall of the pool and is located below the water outlet; the other end of the water outlet weir plate is higher than the water outlet.

[0012] Preferably, the tank body is further provided with a stirrer; the stirrer extends from the top of the tank body to the sludge collection area at the bottom of the tank body.

[0013] Preferably, an inclined plate is provided at the bottom of the pool body; one end of the inclined plate is connected to the inner side wall of the pool body, and the other end is connected to the bottom wall of the pool body, so that the bottom of the pool body is cone-shaped.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] (1) The present invention provides a high-efficiency vortex and inclined tube combined sewage treatment sedimentation tank. The sewage treatment sedimentation tank distributes the sewage to be treated evenly in the tank body in a vortex manner through the sewage distribution pipe. With the centrifugal force generated by the vortex and the auxiliary effect of the inclined tube, the sedimentation speed of suspended solids in the sewage is accelerated and the sedimentation effect is improved. In addition, by designing the bottom of the tank body into a cone shape, it is beneficial for sludge to concentrate around the sludge collection pipe, which improves the sludge collection and discharge efficiency and reduces the investment and maintenance costs. This makes the sewage treatment sedimentation tank have excellent treatment effect and efficiency. The use of vortex water distribution and the use of a stirrer to stir the liquid in the sludge collection area not only helps to improve the sewage treatment capacity and efficiency of the sewage treatment sedimentation tank, but also reduces the requirements of the sewage treatment sedimentation tank for the influent water quality. This solves the problems of limited treatment capacity, high requirements for influent water quality and high maintenance costs of existing sedimentation tank equipment in the prior art. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is the structural formula of the wastewater treatment sedimentation tank described in this utility model;

[0018] Figure 2 The structure of the wastewater treatment sedimentation tank in this utility model is an inverted U-shaped tank body;

[0019] Figure 3 This invention relates to the structural design of a wastewater treatment sedimentation tank with a cone-shaped bottom, as described in this utility model.

[0020] The components are: 1. Tank body; 11. Sedimentation zone; 12. Sludge collection zone; 2. Inlet; 3. Outlet; 4. Inclined tube; 41. First inclined tube; 42. Second inclined tube; 5. Inclined tube purge pipe; 6. Sludge collection pipe; 7. Sewage distribution pipe; 8. Outlet weir plate; 9. Agitator; 10. Inclined plate. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to specific embodiments:

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "side", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0023] A high-efficiency vortex and inclined tube combined wastewater treatment sedimentation tank, such as Figure 1As shown, the system includes a tank body 1, an inlet 2 and an outlet 3 located on the side wall of the tank body 1 near the top of the tank body 1, and inclined pipes 4, inclined pipe purge pipes 5, sludge collection pipes 6, and sewage distribution pipes 7 located inside the tank body 1. The upper part of the tank body 1 is designated as a sedimentation zone 11, and the bottom is designated as a sludge collection zone 12. The inclined pipes 4 are located in the sedimentation zone 11 within the tank body 1 and are connected to the inner side wall of the tank body 1 via connectors. The inclined pipe purge pipes 5 are located at the lower end of the inclined pipes 4 and are also connected to the inner side wall of the tank body 1 via connectors. The sludge collection pipes 6 are located within the sludge collection zone 12. The input end of the sewage distribution pipes 7 is connected to the inlet 2. The output end of the sewage distribution pipes 7 distributes the wastewater to be treated evenly in a swirling manner within the sedimentation zone 11 of the tank body 1 to improve the sedimentation effect. Wastewater to be treated is introduced into the tank 1 through inlet 2 and wastewater distribution pipe 7. After being treated in sedimentation zone 11 by inclined pipe 4 and inclined pipe purge pipe 5, suspended solids such as sand and sludge in the wastewater are deposited in sludge collection zone 12 and collected and discharged through sludge collection pipe 6. The relatively pure water obtained after treatment is discharged through outlet 3. In actual operation, the height of sludge collection pipe 6 and the height and angle of inclined pipe 4 can be adjusted according to the operating effect to control the sedimentation effect and sludge collection effect in tank 1, thereby achieving the best wastewater treatment effect. Tank 1 can be made of materials such as corrosion-resistant carbon steel or stainless steel, depending on different requirements; tank 1 can also be made of reinforced concrete structure.

[0024] When the upper and lower parts of the tank 1 are designed with the same inner diameter, the volume of the sludge collection area 12 is relatively large, causing the suspended solids such as sand and sludge deposited in the sludge collection area 12 to be in a relatively dispersed state. In this case, it is difficult to achieve rapid and complete extraction of these suspended solids through the sludge collection pipe 6, and the efficiency is low. If a rapid and comprehensive extraction effect is to be achieved, multiple sludge collection pipes 6 need to be added, which will undoubtedly significantly increase the construction cost and energy consumption during operation. To solve this problem, the structure of the tank 1 has been further optimized and designed in this application.

[0025] like Figure 2As shown, the tank body 1 is designed in an inverted U-shape, wider at the top and narrower at the bottom. The larger upper section of the tank body 1 is designated as the sedimentation zone 11, and the bottom as the sludge collection zone 12. Inclined pipes 4 are installed in the sedimentation zone 11 within the tank body 1, and sludge collection pipes 6 are installed in the sludge collection zone 12. The inclined pipes 4 include a first inclined pipe 41 and a second inclined pipe 42. The first inclined pipe 41 can be configured for either downward or upward flow; while the second inclined pipe 42 flows in the opposite direction to the first inclined pipe 41. By installing inclined pipes, the sedimentation area is effectively increased, and the bidirectional flow design helps reduce the disturbance of water flow to the sediment, thus improving sedimentation efficiency. An L-shaped weir plate 8 is also installed inside the pool body 1. One end of the weir plate 8 is connected to the inner side wall of the pool body 1 and is located below the outlet 3, so that the horizontal surface of the weir plate 8 is lower than or flush with the bottom of the outlet 3; the vertical surface of the weir plate 8 is higher than the outlet 3. The purpose of setting the weir plate 8 is to allow the treated supernatant to be discharged from the outlet 3, and to prevent the water flow from directly impacting the outlet 3 while ensuring uniform water output, thus ensuring the stability of the water quality. A stirrer 9 is also installed inside the tank body 1. The stirrer 9 extends from the top of the tank body 1 into the sludge collection area 12 at the bottom of the tank body 1. It is used to stir the sand, sludge and other suspended matter deposited in the sludge collection area 12 when needed, to promote the uniform distribution of sand, sludge and suspended matter, and to prevent sand, sludge and suspended matter from clumping and clogging the sludge collection pipe 6. In addition, the stirrer 9 can increase the swirling of the liquid in the tank body 1. Working together with the sludge collection pipe 6, it can efficiently extract the sand, sludge and other suspended matter in the sludge collection area 12, thereby improving the treatment efficiency and treatment effect of the sedimentation tank.

[0026] To further improve the discharge efficiency of suspended solids such as sand and sludge deposited in sludge collection area 12, such as Figure 3 As shown, an inclined plate 10 is also provided at the bottom of the pool body 1; one end of the inclined plate 10 is connected to the inner side wall of the pool body 1, and the other end is connected to the bottom wall of the pool body 1, so that the bottom of the pool body 1 is cone-shaped, which can better collect the sand, sludge and other suspended matter deposited in the sludge collection area 12 around the sludge collection pipe 6, thereby improving the sludge collection and discharge efficiency.

[0027] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A high-efficiency vortex and inclined tube combined wastewater treatment sedimentation tank, characterized in that, Includes a pool body (1), an inlet (2) and an outlet (3) located on the side wall of the pool body (1) and near the top of the pool body (1), and an inclined tube (4), an inclined tube purging pipe (5), and a sludge collection pipe (6) located inside the pool body (1). The pool body (1) is designed as an inverted U-shape with a wide top and a narrow bottom. The upper part of the pool body (1) is set as a sedimentation zone (11), and the bottom is set as a sludge collection zone (12). The inclined tube (4) is disposed in the sedimentation zone (11); the inclined tube purge pipe (5) is disposed at the lower end of the inclined tube (4); the sludge collection pipe (6) is disposed in the sludge collection zone (12); The pool body (1) is also equipped with a sewage distribution pipe (7); the input end of the sewage distribution pipe (7) is connected to the water inlet (2).

2. The high-efficiency vortex and inclined tube combined wastewater treatment sedimentation tank according to claim 1, characterized in that: The inclined tube (4) includes a first inclined tube (41) and a second inclined tube (42); the flow direction of the first inclined tube (41) is downward or upward; the flow direction of the second inclined tube (42) is opposite to that of the first inclined tube (41).

3. The high-efficiency vortex and inclined tube combined sewage treatment sedimentation tank according to claim 2, characterized in that: The pool body (1) is provided with an L-shaped water outlet weir plate (8); one end of the water outlet weir plate (8) is connected to the inner side wall of the pool body (1) and is located below the water outlet (3); the other end of the water outlet weir plate (8) is higher than the water outlet (3).

4. The high-efficiency vortex and inclined tube combined sewage treatment sedimentation tank according to claim 2, characterized in that: The tank (1) is also equipped with a stirrer (9); the stirrer (9) extends from the top of the tank (1) into the sludge collection area (12) at the bottom of the tank (1).

5. The high-efficiency vortex and inclined tube combined sewage treatment sedimentation tank according to claim 2, characterized in that: An inclined plate (10) is provided at the bottom of the pool body (1); one end of the inclined plate (10) is connected to the inner side wall of the pool body (1), and the other end is connected to the bottom wall of the pool body (1), so that the bottom of the pool body (1) is cone-shaped.

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