Overflow sewage suspended matter reduction device
By designing the overflow sewage suspended substance reduction device, using the combined structure of the energy dissipation pool, intercepting pool, sediment pool and steady flow tank, combined with the settings of the intercept grating plate, deflector plate and filter plate, the problem of insufficient suspension reduction efficiency in the prior art is solved, and effective treatment of overflow sewage and protection of the water environment is achieved.
Patent Information
- Application Number
- CN202421888195.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-06
AI Technical Summary
In the prior art, when treating overflow sewage, the suspended material reduction efficiency is insufficient, resulting in the mixed sewage of rain and sewage carrying sewage directly into the receiving water body, causing water pollution.
A device for reducing overflow sewage suspension is designed, including energy dissipation tank, intercepting tank, sediment tank and steady flow tank. By setting up an intercepting grating plate, deflector and filtering plate, the water flow optimization of overflow sewage, large particulate interception, sediment collection and suspended filtration are achieved.
It effectively reduces the suspended matter in overflow sewage, optimizes the sewage flow, collects sewage, stabilizes the sewage flow, and significantly reduces pollution to the water environment.
Smart Images
Figure CN222956061U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of overflow sewage treatment, and particularly relates to an overflow sewage suspended solid reduction device. Background Art
[0002] Overflow pollution of the drainage system is the main cause of water body blackening and odor; on rainy days, rainwater with fast flow rate and large flow mixes with municipal sewage, impacts the sediments and large particulate matters in the drainage pipeline, including leaves, waste paper, plastic bags, etc., and discharges them into the river without treatment, causing sewage overflow pollution.
[0003] Suspended solid reduction and removal are one of the main measures to reduce overflow pollution; discharging after removing most of the particulate pollutants in the overflow sewage can greatly reduce the impact on the water environment in the rainy season; currently, the control of overflow sewage in the drainage system mainly focuses on water volume regulation and nitrogen and phosphorus nutrient reduction, and the sediment interception and suspended solid reduction efficiency are insufficient, resulting in the rain - sewage mixed sewage carrying sediments directly into the receiving water body, causing pollution to the water body. Content of the Utility Model
[0004] Aiming at the deficiencies in the prior art, the utility model provides an overflow sewage suspended solid reduction device, which has a simple structure and can effectively reduce the suspended solids in the overflow sewage.
[0005] An overflow sewage suspended solid reduction device includes a pool body, and the pool body is divided into an energy dissipation pool, an interception pool, and an outlet pool from left to right by a partition wall;
[0006] The energy dissipation pool is connected to an inlet pipe, the energy dissipation pool communicates with the interception pool through a first conveying pipe, and the interception pool communicates with the outlet pool through a second conveying pipe; an interception grid plate is arranged in the interception pool;
[0007] On the right side of the outlet pool, there are several first guide plates and second guide plates distributed cross -wise; the left - most first guide plate divides the outlet pool into a sedimentation pool and a steady - flow pool, the sedimentation pool is close to the interception pool, and a mud trough is arranged at the bottom, and the steady - flow pool is connected to an outlet pipe;
[0008] Several of the first guide plates are connected to the first side wall of the pool body at intervals and there is a gap between the second side wall opposite to the first side wall of the pool body, and several second guide plates are connected to the second side wall of the pool body at intervals and there is a gap between the first side wall of the pool body, so as to form a flow channel for the sewage to flow in a zigzag form.
[0009] Optionally, the bottom of the energy dissipation pool includes a first plane, a second plane, and a third plane that are distributed from left to right. The first plane and the third plane are on the same horizontal line, and the second plane is below the first plane. The first plane and the second plane are connected by a slope, and the second plane and the third plane are connected by a vertical surface. The slope of the slope is 0.1 to 0.2.
[0010] Optionally, the first conveying pipe and the second conveying pipe are respectively located on the left and right sides of the intercepting grille plate. There are at least two intercepting grille plates. The aperture of the intercepting grille plate on the left side is larger than the aperture of the intercepting grille plate on the right side.
[0011] The intercepting grille plate is inclined, and the inclination angle between the intercepting grille plate and the horizontal plane is 60° to 80°.
[0012] Optionally, a cleaning scraper is arranged on the side of the intercepting grille plate close to the energy dissipation pool. The cleaning scraper straddles the intercepting grille plate and contacts the surface of the intercepting grille plate. Under the action of a power mechanism, the cleaning scraper moves along the up and down direction of the intercepting grille plate.
[0013] Optionally, the mud trough is an inverted cone, and a mud discharging pipe is connected to the bottom of the mud trough. The mud discharging pipe is connected to a mud discharging pump.
[0014] Optionally, a mud retaining plate is further arranged in the sedimentation pool. The mud retaining plate is located on the right side of the mud trough. The water-facing surface of the mud retaining plate is an inclined surface, and the included angle with the horizontal plane is 45° to 60°.
[0015] Optionally, a plurality of filter media plates are further arranged in the flow stabilization pool. Some of the filter media plates are installed between the first guide plate and the second guide plate, and the rest of the filter media plates are installed on the third side wall of the pool body and the first guide plate or the second guide plate adjacent thereto.
[0016] Optionally, a plurality of card slots are arranged on the opposite surfaces of the first guide plate and the second guide plate. A plurality of card slots are arranged on the third side wall of the pool body, and a plurality of card slots facing the third side wall of the pool body are also arranged on the first guide plate or the second guide plate adjacent to the third side wall of the pool body. The filter media plate is installed between the first guide plate, the second guide plate, or the third side wall of the pool body through the card slots.
[0017] Optionally, the filter media of the filter media plate includes ceramsite, limestone, and zeolite. The particle size of the zeolite is 5 to 10 mm. The particle size of the ceramsite is 20 to 40 mm. The particle size of the limestone is 40 to 100 mm.
[0018] Optionally, both the first conveying pipe and the second conveying pipe include 2 to 5 and are both located at the lower part of the intercepting pool.
[0019] The part of the water outlet pipe extending out of the pool body is provided with a solid monitoring sensor.
[0020] The beneficial effects of the present utility model are as follows:
[0021] (1) By setting up an energy dissipation pool, the water flow of the overflow sewage is optimized; by setting up an interception pool, large particulate matter in the overflow sewage is intercepted; by setting up a sedimentation pool, sediments in the overflow sewage are collected; by setting up a flow stabilization pool, the water flow of the overflow sewage is stabilized. The structure is simple and can effectively reduce the suspended matter in the overflow sewage.
[0022] (2) The flow stabilization pool is also provided with a number of filter plates; some of the filter plates are installed between the first guide plate and the second guide plate, and the rest of the filter plates are installed on the third side wall of the pool body and the adjacent first guide plate or second guide plate; the setting of the filter plates can further filter the suspended matter in the overflow sewage; in addition, the number of filter plates can be increased, decreased and the position can be adjusted according to needs, thus improving the operability. Description of the Drawings
[0023] Figure 1 is the overall structural schematic diagram of the present utility model;
[0024] Figure 2 is the top view of the flow stabilization pool of the present utility model;
[0025] Figure 3 is the schematic diagram of the interception grille plate of the present utility model.
[0026] In the figure, the labels are: 1 is the pool body, 11 is the water inlet pipe, 12 is the water outlet pipe, 2 is the energy dissipation pool, 21 is the first conveying pipe, 22 is the second conveying pipe, 23 is the first plane, 24 is the second plane, 25 is the third plane, 26 is the slope, 27 is the vertical surface, 3 is the interception pool, 31 is the interception grille plate, 32 is the cleaning scraper, 4 is the first guide plate, 5 is the second guide plate, 6 is the sedimentation pool, 61 is the mud trough, 62 is the sludge discharge pipe, 63 is the sludge discharge pump, 64 is the mud baffle, 7 is the flow stabilization pool, 71 is the card slot, 72 is the filter plate, 8 is the solid monitoring sensor. Detailed Embodiment
[0027] The present utility model will be described in detail below with reference to the drawings.
[0028] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "rear", etc. cited in the utility model are only for the convenience of narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.
[0029] Such as Figure 1As shown in the figure, an overflow sewage suspended solid reduction device is provided, including a pool body 1, and the pool body 1 is divided into an energy dissipation pool 2, an interception pool 3, and an outlet pool from left to right by a partition wall; that is, the energy dissipation pool 2 and the interception pool 3 share a partition wall, and the outlet pool and the interception pool 3 share a partition wall.
[0030] The energy dissipation pool 2 is connected to the water inlet pipe 11, and the water inlet pipe 11 is used for the inlet of overflow sewage. The interception pool 3 communicates with the energy dissipation pool 2 through the first conveying pipe 21, and the interception pool 3 communicates with the outlet pool through the second conveying pipe 22. That is, the overflow sewage enters the energy dissipation pool 2 through the water inlet pipe 11, then enters the interception pool 3 through the first conveying pipe 21, enters the outlet pool through the second conveying pipe 22, and the overflow sewage after passing through the outlet pool is discharged from the pool body 1 through the water outlet pipe 12 and enters the receiving water body.
[0031] Optionally, both the first conveying pipe 21 and the second conveying pipe 22 include 2 to 5 and are both located at the lower part of the interception pool 3; the pipe diameters of the first conveying pipe 21, the second conveying pipe 22, the water inlet pipe 11, and the water outlet pipe 12 are all 100 to 300 mm.
[0032] The bottom of the energy dissipation pool 2 includes a first plane 23, a second plane 24, and a third plane 25 distributed from left to right. The first plane 23 and the third plane 25 are on the same horizontal line, and the second plane 24 is below the first plane 23; the first plane 23 is connected to the second plane 24 through a slope 26, and the second plane 24 is connected to the third plane 25 through a vertical surface 27; the slope of the slope 26 is 0.1 to 0.2; the slope 26, the second plane 24, and the vertical surface 27 form a bottom flow energy dissipation tank, which can effectively reduce the flow rate of the overflow sewage, thereby reducing hydrodynamic damage.
[0033] An interception grid plate 31 is arranged in the interception pool 3, and the first conveying pipe 21 and the second conveying pipe 22 are respectively located on the left and right sides of the interception grid plate 31; the interception grid plate 31 is inclined, and the inclination angle between the interception grid plate 31 and the horizontal plane is 60° to 80°; there are at least two interception grid plates 31, and the grid aperture of the interception grid plate 31 on the left side is larger than the aperture of the interception grid plate 31 on the right side. That is, the interception grid plate 31 on the left side is a coarse grid for intercepting large floating objects and suspended solids in the overflow sewage, and the interception grid plate 31 on the right side is a fine grid for intercepting fine particulate matters and suspended solids.
[0034] Optionally, as Figure 3As shown, the intercepting grid plate 31 is provided with a plurality of transverse connecting bars and longitudinal connecting bars. For the coarse grid, the spacing between two adjacent transverse connecting bars or between two adjacent longitudinal connecting bars is 50 to 100 mm; for the fine grid, the spacing between two adjacent transverse connecting bars or between two adjacent longitudinal connecting bars is 10 to 20 mm.
[0035] like Figure 3 As shown, in some other embodiments, a cleaning scraper 32 is provided on the interception grid plate 31 facing the first conveying pipe 21 side, and the cleaning scraper 32 spans the interception grid plate 31 and contacts the surface of the interception grid plate 31; the cleaning scraper 32 moves along the up and down directions of the interception grid plate 31 under the action of a power mechanism, and the power mechanism is located on the outside of the top of the interception pool 3; the power mechanism can refer to the prior art, and the material of the cleaning scraper 32 can refer to the prior art. The cleaning scraper 32 can undergo a certain amount of deformation when scraping the surface of the interception grid plate 31, thereby avoiding wear of the interception grid plate 31.
[0036] As an optional option, the cleaning scraper 32 is slidably connected to the interception grid plate 31, and the power mechanism is a belt and a motor that drives the belt. One end of the belt is located at the bottom of the interception pool 3, and the other end extends to the top of the interception pool 3. The cleaning scraper 32 is connected to the belt, and the motor drives the belt to rotate forward or reverse, so that the cleaning scraper 32 moves to the top or bottom of the pool.
[0037] As another option, the cleaning scraper 32 is slidably connected to the intercepting grid plate 31, and the power mechanism includes a rack, a gear and a motor. The motor drives the gear to rotate, and the rack is meshed with the gear. The end of the rack is connected to the cleaning scraper 32, and the motor controls the moving direction of the cleaning scraper 32 by forward and reverse rotation.
[0038] like Figure 1 and 2 As shown, a plurality of cross-distributed first guide plates 4 and second guide plates 5 are arranged on the right side of the outlet pool; the first guide plate 4 located on the far left separates the outlet pool into a sedimentation pool 6 and a stabilization pool 7, the sedimentation pool 6 is close to the interception pool 3, and a mud trough 61 is arranged at the bottom, and the stabilization pool 7 is connected to the water outlet pipe 12.
[0039] The mud trough 61 is an inverted cone, and a mud discharge pipe 62 is connected to the bottom of the mud trough 61, and the mud discharge pipe 62 is connected to a mud discharge pump 63; the mud trough 61 is used to collect and deposit sediments of overflow sewage, and the mud discharge pump 63 is closed during the sewage overflow and opened after the sewage overflow ends, so as to discharge the sediments collected in the mud trough 61 out of the pool body 1.
[0040] The sedimentation tank 6 is also provided with a mud guard 64 ; the mud guard 64 is located on the right side of the mud trough 61 ; the water-facing surface of the mud guard 64 is an inclined surface, and the angle with the horizontal plane is 45° to 60°. The setting of the mud guard 64 can improve the collection effect of the mud trough 61 .
[0041] like Figure 2 As shown, a plurality of the first guide plates 4 are connected to the first side wall of the tank body 1 at intervals, and a gap is retained between the first guide plates 4 and the second side wall of the tank body 1, and a plurality of the second guide plates 5 are connected to the second side wall of the tank body 1 at intervals, and a gap is retained between the first side wall of the tank body 1, so as to form a flow channel for the sewage to flow in a zigzag form, and the first side wall of the tank body 1 is opposite to the second side wall; after passing through the sedimentation tank 6, the overflow sewage enters the flow channel formed by the first guide plate 4, the second guide plate 5 and the tank body 1, and the flow channel is in the shape of a zigzag line, so that the overflow sewage can flow steadily.
[0042] In some other embodiments, the stabilizing pool 7 is further provided with a plurality of filter plates 72; some of the filter plates 72 are installed between the first guide plate 4 and the second guide plate 5, and the remaining filter plates 72 are installed on the third side wall of the pool body 1 and the first guide plate 4 or the second guide plate 5 adjacent thereto. Figure 2 In the figure, the third side wall of the pool body 1 is adjacent to the second guide plate 5 on the far right, but in actual application, the number of the first guide plate 4 and the second guide plate 5 can be adjusted as needed. Therefore, there is a third side wall of the pool body 1 adjacent to the first guide plate 4.
[0043] The first guide plate 4 and the second guide plate 5 are both provided with a plurality of slots 71 on their opposite surfaces; the third side wall of the pool body 1 is provided with a plurality of slots 71, and the first guide plate 4 or the second guide plate 5 adjacent to the third side wall of the pool body 1 is also provided with a plurality of slots 71 facing the third side wall of the pool body 1; the filter plate 72 is installed between the first guide plate 4, the second guide plate 5 or the third side wall of the pool body 1 through the slots 71; when the filter plate 72 is located between the first guide plate 4 and the second guide plate 5, the corresponding slots 71 on the first guide plate 4 and the second guide plate 5 are located The two slots 71 are a pair. Normally, the number of the slots 71 located on the first guide plate 4 and the second guide plate 5 is 2 to 5 pairs. When the filter plate 72 is located between the second guide plate 5 and the third side wall of the pool body 1, the two corresponding slots 71 located on the second guide plate 5 and the pool body 1 are also a pair, and the number of the slots 71 located on the second guide plate 5 and the third side wall of the pool body 1 is also 2 to 5 pairs. The filter plate 72 can be installed on different pairs of slots 71 as needed to adjust the position of the filter plate 72. Of course, the number of filter plates 72 can also be increased or decreased as needed.
[0044] The filter material of the filter plate 72 includes ceramsite, limestone and zeolite; the particle size of the zeolite is 5 to 10 mm; the particle size of the ceramsite is 20 to 40 mm; the particle size of the limestone is 40 to 100 mm; the proportions of ceramsite, limestone and zeolite can be adjusted according to actual needs or existing technology; ceramsite, limestone and zeolite can be installed in the filter plate 72 in a uniformly mixed manner, or can be installed in the filter plate 72 according to other distribution methods of the existing technology. The filter plate 72 allows overflow sewage to pass through, thereby further filtering the suspended matter in the overflow sewage.
[0045] The portion of the outlet pipe 12 extending out of the tank body 1 is provided with a solid monitoring sensor 8 , and the solid detection sensor is used to detect the total suspended solids of the overflow sewage flowing out of the outlet pipe 12 .
[0046] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0047] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.
Claims
1. An overflow sewage suspended solids reduction device, comprising a tank body (1), characterized in that: The pool body (1) is divided from left to right by a partition wall into an energy dissipation pool (2), an interception pool (3), and an outlet pool; The energy dissipation pool (2) is connected to the water inlet pipe (11), the energy dissipation pool (2) is connected to the interception pool (3) through a first delivery pipe (21), and the interception pool (3) is connected to the outlet pool through a second delivery pipe (22); an interception grid plate (31) is arranged in the interception pool (3); A plurality of cross-distributed first guide plates (4) and second guide plates (5) are arranged on the right side of the outlet pool; the first guide plate (4) located on the leftmost side divides the outlet pool into a sedimentation pool (6) and a stabilization pool (7); the sedimentation pool (6) is close to the interception pool (3) and has a mud trough (61) at the bottom; and the stabilization pool (7) is connected to a water outlet pipe (12); A plurality of the first guide plates (4) are connected to the first side wall of the tank body (1) at intervals, and a gap is retained between the second side wall opposite to the first side wall of the tank body (1); a plurality of the second guide plates (5) are connected to the second side wall of the tank body (1) at intervals, and a gap is retained between the first side wall of the tank body (1), so as to form a flow channel for sewage to flow in a zigzag form.
2. The overflow sewage suspended solids reduction device according to claim 1, characterized in that: The bottom of the energy dissipation pool (2) comprises a first plane (23), a second plane (24) and a third plane (25) which are distributed from left to right, wherein the first plane (23) and the third plane (25) are located on the same horizontal line, and the second plane (24) is located below the first plane (23); the first plane (23) and the second plane (24) are connected via a slope (26), and the second plane (24) and the third plane (25) are connected via a vertical surface (27); and the slope (26) has a gradient of 0.1 to 0.
2.
3. The overflow sewage suspended solids reduction device according to claim 1, characterized in that: The first conveying pipe (21) and the second conveying pipe (22) are respectively located on the left and right sides of the intercepting grid plate (31); there are at least two intercepting grid plates (31), and the grid aperture of the intercepting grid plate (31) located on the left side is larger than the aperture of the intercepting grid plate (31) located on the right side; The intercepting grid plate (31) is arranged tilted, and the inclination angle between the intercepting grid plate (31) and the horizontal plane is 60° to 80°.
4. The overflow sewage suspended solids reduction device according to claim 1, characterized in that: A cleaning scraper (32) is provided on the intercepting grid plate (31) near the energy dissipation pool (2); the cleaning scraper (32) spans the intercepting grid plate (31) and contacts the surface of the intercepting grid plate (31); and the cleaning scraper (32) moves in the up and down directions of the intercepting grid plate (31) under the action of a power mechanism.
5. The overflow sewage suspended solids reduction device according to claim 1, characterized in that: The mud trough (61) is an inverted cone, and a mud discharge pipe (62) is connected to the bottom of the mud trough (61), and the mud discharge pipe (62) is connected to a mud discharge pump (63).
6. The overflow sewage suspended solids reduction device according to claim 1, characterized in that: The sedimentation tank (6) is further provided with a fender (64); the fender (64) is located on the right side of the mud trough (61); the water-facing surface of the fender (64) is an inclined surface, and the angle between the fender and the horizontal plane is 45° to 60°.
7. The overflow sewage suspended solids reduction device according to claim 1, characterized in that: The stabilizing pool (7) is also provided with a plurality of filter plates (72); some of the filter plates (72) are installed between the first guide plate (4) and the second guide plate (5), and the remaining filter plates (72) are installed on the third side wall of the pool body (1) and the first guide plate (4) or the second guide plate (5) adjacent thereto.
8. The overflow sewage suspended solids reduction device according to claim 7, characterized in that: The first guide plate (4) and the second guide plate (5) are both provided with a plurality of slots (71) on their mutually facing surfaces; the third side wall of the pool body (1) is provided with a plurality of slots (71); the first guide plate (4) or the second guide plate (5) adjacent to the third side wall of the pool body (1) is also provided with a plurality of slots (71) facing the third side wall of the pool body (1); the filter plate (72) is installed between the first guide plate (4), the second guide plate (5) or the third side wall of the pool body (1) via the slots (71).
9. The overflow sewage suspended solids reduction device according to claim 1, characterized in that: The first delivery pipe (21) and the second delivery pipe (22) each include 2 to 5 pipes, and are both located at the lower part of the interception tank (3); The portion of the water outlet pipe (12) extending out of the pool body (1) is provided with a solid monitoring sensor (8).