A horizontal flow and inclined plate combined type sedimentation tank equipment
By incorporating inclined plates and employing a rational zoning design in the sedimentation tank equipment, the problems of complex structure, low processing capacity, and high maintenance costs of existing sedimentation tank equipment have been solved, achieving efficient sedimentation and stable operation, and reducing equipment costs and failure rates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-16
Smart Images
Figure CN224358063U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a composite sedimentation tank device of horizontal flow and inclined plate. Background Technology
[0002] Municipal wastewater often contains large amounts of suspended solids such as sand, sludge, and various types of garbage. To avoid these suspended solids adversely affecting the treatment effect of subsequent wastewater treatment processes, they need to be removed in a timely manner. Commonly used sedimentation tank types for municipal wastewater treatment include horizontal flow sedimentation tanks, vertical flow sedimentation tanks, inclined plate sedimentation tanks, and inclined tube sedimentation tanks, etc. However, these sedimentation tanks have relatively limited functions in removing sand, sludge, or other suspended solids, and their actual operating performance is often poor. To achieve ideal treatment results, it is usually necessary to use a combination of multiple types of sedimentation tanks in series. However, this not only significantly increases the land area required but also significantly increases the cost of wastewater treatment.
[0003] Patent application CN202221989410.X discloses a horizontal flow sedimentation tank with an inverted V-shaped inclined plate membrane structure. In this sedimentation tank, the water flow velocity is slowed by the inverted V-shaped inclined plate membrane structure, causing silt and other impurities in the wastewater to accumulate at the upper part of the inverted V-shaped inclined plate and settle downwards under gravity. Clear water flows through the middle of the inverted V-shaped inclined plate, achieving separation of water and sludge, improving water purification efficiency, shortening the sedimentation and filtration process, and thus reducing the footprint. Simultaneously, the flat plate membrane further enhances the water purification effect. However, this horizontal flow sedimentation tank has a relatively complex structure and low resistance to shock loads, which may prevent it from maintaining stable operation when facing large fluctuations in water quality and quantity. Furthermore, its construction, cleaning, and maintenance costs are also relatively high.
[0004] This invention provides a composite sedimentation tank device combining horizontal flow and inclined plate to solve the problems of complex structure, low processing capacity, and high maintenance cost of existing sedimentation tank devices. Utility Model Content
[0005] The purpose of this invention is to provide a composite sedimentation tank device combining horizontal flow and inclined plate, so as to solve the problems of complex structure, low processing capacity and high maintenance cost of existing sedimentation tank devices.
[0006] The technical solution of this utility model is: a horizontal flow and inclined plate composite sedimentation tank device, including a tank body; the interior of the tank body is divided into three areas by a first water-blocking baffle and a second water-blocking baffle, which are, in order, an inlet area, a sedimentation area and an outlet area;
[0007] A water inlet is provided on the side wall of the water inlet area and near the bottom of the water inlet area;
[0008] A water outlet is provided on the side wall of the water outlet area and near the top of the water outlet area;
[0009] The upper end of the first water-blocking baffle is provided with a first through hole; the water inlet area and the sedimentation area are connected through the first through hole;
[0010] The lower end of the second water-blocking baffle is provided with a second through hole; the sedimentation zone and the water outlet zone are connected through the second through hole;
[0011] A first inclined plate is provided in the sedimentation zone; a second inclined plate is provided in the effluent zone;
[0012] Both the first inclined plate and the second inclined plate are provided with inclined plate purge pipes at their upper ends;
[0013] Sludge collection pipes are installed inside the water inlet zone, the sedimentation zone, and the water outlet zone.
[0014] Preferably, the flow direction of the first inclined plate is downward or upward; the flow direction of the second inclined plate is opposite to that of the first inclined plate.
[0015] Preferably, the bottom of both the sedimentation zone and the effluent zone is designed in a cone shape; the sludge collection pipe is located at the bottom of the sedimentation zone and the effluent zone.
[0016] Preferably, a plurality of continuous sludge discharge channels are provided at the bottom of the sedimentation zone and / or the effluent zone; the sludge collection pipe is disposed in the sludge discharge channels;
[0017] Preferably, a sewage distribution pipe is also provided inside the sedimentation zone; the input end of the sewage distribution pipe is connected to the water inlet.
[0018] Preferably, a weir plate is further provided inside the water outlet area; one end of the weir plate is connected to the inner wall of the water outlet area and is located below the water outlet; the other end of the weir plate is higher than the water outlet.
[0019] Compared with the prior art, the advantages of this utility model are:
[0020] (1) The present invention provides a composite sedimentation tank device of horizontal flow and inclined plate. This sedimentation tank device is a new type of sedimentation tank device that combines the traditional horizontal flow sedimentation tank and the traditional inclined plate sedimentation tank. By setting inclined plates inside the tank, the self-weight of suspended solids and the auxiliary effect of the inclined plates can be utilized. Combined with reasonable inlet and outlet water design and inclined plate flow direction design, the sedimentation speed of suspended solids can be accelerated, and the sedimentation effect and sedimentation efficiency can be improved. This sedimentation equipment has excellent treatment capacity and treatment effect, and can treat larger flow rates of sewage to meet the sewage treatment needs of different scales. The sedimentation tank device effectively reduces the manufacturing cost and installation and commissioning difficulty of the equipment through simple structural design and reasonable zoning. In addition, the first inclined plate and the second inclined plate can be cleaned regularly through the inclined plate purge pipe, which reduces the probability of blockage and failure inside the equipment and reduces the maintenance difficulty and cost of the equipment. It solves the problems of complex structure, low treatment capacity and high maintenance cost of existing sedimentation tank equipment in the prior art. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0022] Figure 1 This is a schematic diagram of the sedimentation tank equipment described in this utility model;
[0023] Figure 2 This is a schematic diagram of the sedimentation tank equipment described in this utility model;
[0024] Figure 3 This is a schematic diagram of the sedimentation tank equipment described in this utility model;
[0025] The components are: 1. Pool body; 2. Inlet area; 21. Inlet; 3. Sedimentation area; 31. Sludge discharge channel; 32. Sewage distribution pipe; 4. Outlet area; 41. Outlet; 42. Outlet weir; 5. First baffle plate; 51. First through hole; 6. Second baffle plate; 61. Second through hole; 7. First inclined plate; 8. Second inclined plate; 9. Inclined plate purging pipe; 10. Sludge collection pipe. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to specific embodiments:
[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "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.
[0028] A composite sedimentation tank device combining horizontal flow and inclined plate, such as Figure 1 As shown, the tank 11 includes a tank body 1 composed of side walls, bottom walls, and a top. Two baffles, a first baffle 5 and a second baffle 6, are installed within the tank body 1. These baffles divide the interior of the tank body 1 into three zones: an inlet zone 2, a sedimentation zone 3, and an outlet zone 4, from left to right. A first through-hole 51 is provided at the upper end of the first baffle 5, allowing the inlet zone 2 and sedimentation zone 3 to communicate with each other. A second through-hole 61 is provided at the lower end of the second baffle 6, allowing the sedimentation zone 3 and outlet zone 4 to communicate with each other. This zoned design makes the flow path of wastewater within the sedimentation tank clearer, facilitating the implementation of different treatment functions. An inlet 21 is located on one side wall of the inlet zone 2, near the bottom of the zone. This inlet 21 is positioned on the side wall of the inlet zone 2, near the bottom wall, and is used to introduce the wastewater to be treated into the sedimentation tank. A sludge collection pipe 10 is installed in the middle ring of the inlet zone to effectively remove deposited sludge. This design allows the wastewater to enter the inlet zone 2 smoothly from the bottom of the tank 1, where primary sedimentation occurs. This not only promotes uniform wastewater distribution but also reduces the requirements of the sedimentation tank for wastewater quality. An outlet 41 is located on one side wall of the outlet zone 4, near the top of the zone. This outlet 41 is positioned on the side wall of the outlet zone 4, near the top of the tank, and is used to discharge the treated clean water. Positioning the outlet 41 near the top ensures that the upper layer of clean water after sedimentation can be discharged smoothly, preventing unsettled suspended solids from being discharged with the water flow. The pool body 1, the first water-blocking baffle 5, and the second water-blocking baffle 6 can all be made of carbon steel anti-corrosion plate or stainless steel plate; or they can be made of reinforced concrete structure.
[0029] A first inclined plate 7 is installed in the sedimentation zone 3, and a second inclined plate 8 is installed in the effluent zone 4. Inclined plate purge pipes 9 are installed at the upper ends of both the first and second inclined plates 7 and 8. The purpose of installing the first and second inclined plates 7 and 8 is to improve the sedimentation rate and effect of suspended solids such as sludge in the sedimentation zone 3 and effluent zone 4, thereby improving the treatment capacity and efficiency of the sedimentation tank for municipal sewage. During operation, sludge and other impurities may accumulate on the first and second inclined plates 7 and 8. The inclined plate purge pipes 9 can be used to periodically purge the first and second inclined plates 7 and 8 to prevent blockage and ensure the normal operation of the sedimentation tank. The flow direction of the first inclined plate 7 can be designed as either downward or upward, while the flow direction of the second inclined plate 8 is opposite to that of the first inclined plate 7. This opposite flow direction design optimizes the sedimentation effect and water flow distribution, making the flow of sewage in the sedimentation zone 3 and effluent zone 4 more rational, further improving sedimentation efficiency. Both the sedimentation zone 3 and the effluent zone 4 are equipped with at least one sludge collection pipe 10 to collect settled sludge for subsequent centralized treatment. During the operation of this sedimentation tank, the sedimentation effect on suspended solids in wastewater and the sludge collection effect can be controlled by adjusting the height of the sludge collection pipe 10, as well as the height and angle of the first inclined plate 7 and the second inclined plate 8, to achieve the best sedimentation effect.
[0030] The sedimentation zone 3 is also equipped with a sewage distribution pipe 32, the inlet of which is connected to the first through hole 51. The sewage distribution pipe 32 can evenly distribute the sewage in the inlet zone 2 to the sedimentation zone 3, preventing localized high or low concentrations and thus improving sedimentation effect and efficiency. The outlet zone 4 is also equipped with an outlet weir 42. One end of the weir 42 is connected to the inner wall of the outlet zone 4 and positioned below the outlet 41, while the other end is higher than the outlet 41. This ensures uniform effluent flow and guarantees effluent quality. The wastewater to be treated flows gently into the inlet zone 2 through inlet 21 and undergoes initial sedimentation. When the water level in the inlet zone 2 reaches a certain height, the wastewater in the inlet zone 2 enters the sedimentation zone 3 through the first through hole 51 and the wastewater distribution pipe 32, and enters the outlet zone 4 through the second through hole 61. In the sedimentation zone 3 and the outlet zone 4, the suspended matter in the wastewater can not only settle by its own weight, but also be accelerated by the set flat first inclined plate and second inclined plate. After sedimentation, the clear water in the upper layer of the outlet zone 4 is discharged through the outlet 41. The sludge and other suspended matter deposited at the bottom are collected by the sludge collection pipe 10 and discharged.
[0031] In order to better aggregate the deposited sludge and other suspended matter, and to allow the sludge to flow more smoothly into the sludge collection pipe 10, such as... Figure 2As shown, the bottoms of sedimentation zone 3 and effluent zone 4 can both be designed in a cone shape, with sludge collection pipe 10 installed at the bottom of both zones; this cone-shaped design facilitates sludge collection and discharge. Figure 3 As shown, several continuous sludge discharge channels 31 can also be set at the bottom of the sedimentation zone 3 and / or the effluent zone 4; the sludge collection pipe 10 is arranged in the sludge discharge channel 31, which can guide the deposited sludge to flow to the sludge collection pipe 10, improve the efficiency of sludge collection, and reduce the sludge residue at the bottom of the equipment. Alternatively, the bottom of the sedimentation zone 3 can be set as several continuous sludge discharge channels 31, while the bottom of the effluent zone 4 can be designed as a cone shape, or the bottom of the sedimentation zone 3 can be designed as a cone shape, and the bottom of the effluent zone 4 can be set as several continuous sludge discharge channels 31.
[0032] 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 composite sedimentation tank device combining horizontal flow and inclined plate, characterized in that, It includes a pool body (1); the interior of the pool body (1) is divided into three areas by a first water-blocking baffle (5) and a second water-blocking baffle (6), namely, the water inlet area (2), the sedimentation area (3) and the water outlet area (4). A water inlet (21) is provided on the side wall of the water inlet area (2) and near the bottom of the water inlet area (2); An outlet (41) is provided on the side wall of the water outlet area (4) and near the top of the water outlet area (4). The upper end of the first water-blocking baffle (5) is provided with a first through hole (51); the water inlet area (2) and the sedimentation area (3) are connected through the first through hole (51); The lower end of the second water baffle (6) is provided with a second through hole (61); the sedimentation zone (3) and the water outlet zone (4) are connected through the second through hole (61); A first inclined plate (7) is provided in the sedimentation zone (3); a second inclined plate (8) is provided in the effluent zone (4); The upper ends of the first inclined plate (7) and the second inclined plate (8) are both provided with inclined plate purge pipes (9); Sludge collection pipes (10) are installed inside the water inlet zone (2), the sedimentation zone (3), and the water outlet zone (4).
2. The composite sedimentation tank equipment of horizontal flow and inclined plate as described in claim 1, characterized in that: The flow direction of the first inclined plate (7) is downward or upward; the flow direction of the second inclined plate (8) is opposite to that of the first inclined plate (7).
3. The composite sedimentation tank equipment of horizontal flow and inclined plate as described in claim 2, characterized in that: The bottom of the sedimentation zone (3) and the effluent zone (4) are both designed in a cone shape; the sludge collection pipe (10) is set at the bottom of the sedimentation zone (3) and the effluent zone (4).
4. The composite sedimentation tank equipment of horizontal flow and inclined plate according to claim 2, characterized in that: Several continuous sludge discharge channels (31) are provided at the bottom of the sedimentation zone (3) and / or the effluent zone (4); the sludge collection pipe (10) is provided in the sludge discharge channel (31).
5. The composite sedimentation tank equipment of horizontal flow and inclined plate as described in claim 2, characterized in that: The sedimentation zone (3) is also equipped with a sewage distribution pipe (32); the input end of the sewage distribution pipe (32) is connected to the water inlet (21).
6. The composite sedimentation tank equipment of horizontal flow and inclined plate according to claim 2, characterized in that: The water outlet area (4) is also provided with a water outlet weir plate (42); one end of the water outlet weir plate (42) is connected to the inner wall of the water outlet area (4) and is connected at a position below the water outlet (41); the other end of the water outlet weir plate (42) is higher than the water outlet (41).