Integrated efficient overflowing precipitation device
By designing an integrated and efficient overflow precipitation device to optimize the sludge separation and reflow structure, the problems of slow sludge drop and large land occupation in the existing sewage treatment system are solved, and efficient sludge separation and sludge return are achieved, reducing operating costs and land area.
Patent Information
- Application Number
- CN202421204227.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the existing sewage treatment system, the sludge discharge port of the overflow precipitation device is easily affected by water flow, causing the sludge to fall slowly and be easily blocked, affecting the sludge separation effect, and occupy a large area, high cost, and limited return volume of sludge, making the fixed pool scale inconvenient for transformation.
An integrated and efficient overflow precipitation device is designed, including a precipitation main frame, water collection tank, inclined plate solid-liquid separation zone, water distribution zone, mud discharge tank and mud collection zone. By optimizing the structure and circulation design, efficient separation and reflow of the sludge is achieved.
It realizes efficient separation and reflux of sludge, significantly improves the sludge separation effect, reduces land occupation and cost, and enhances the operation efficiency and water quality purification capacity of the sewage treatment system.
Smart Images
Figure CN222665592U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment devices, in particular to an integrated high-efficiency over-flow sedimentation device. Background Art
[0002] Mud and water separation is a commonly used process unit in the biochemical method of sewage treatment projects. Poor mud and water separation will lead to high turbidity and high suspended solids in the effluent, that is, the effluent does not meet the standards or cause the operating load of the next process unit to be too high. Poor mud and water separation will cause sludge to be entrained in the effluent, resulting in the loss of activated sludge, etc., which will affect the effect of the entire sewage treatment system. The mud and water separation effect determines the normal operation of the entire sewage treatment plant. At present, the sewage treatment industry generally achieves the purpose of mud and water separation by setting up an independent sedimentation tank at the back end of the biochemical link, and at the same time, a return pump is added to realize sludge return. A separate sedimentation tank must be set up, which occupies a large area and has a high cost. A sludge return pump must be installed, which increases the project investment, and the sludge return volume is limited. The scale of the sedimentation tank is fixed, which is not convenient for transformation and adjustment. Therefore, a flow sedimentation device is set in the biochemical tank to reduce costs.
[0003] The sludge discharge port of the current over-flow sedimentation device is easily affected by the water flow when the water in the biochemical pool flows, causing the precipitated sludge to fall slowly and be easily blocked. In addition, when the aeration device installed at the bottom of the biochemical pool is aerated, the falling sludge and the aeration produce convection, which easily flushes the sludge into the sedimentation device, affecting the discharge of the sludge after precipitation, thereby reducing the efficiency of sludge discharge and affecting the effect of mud-water separation. In addition, some sedimentation devices must be equipped with a separate sedimentation tank, which occupies a large area and has a high cost, or a sludge return pump must be installed, which increases the project investment, and the limited sludge return volume is a problem that is visible to the naked eye today. Some sedimentation tanks have a fixed scale and are not easy to transform and adjust. Utility Model Content
[0004] The purpose of the utility model is to provide an integrated high-efficiency over-flow sedimentation device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated high-efficiency flow sedimentation device, including a sedimentation main frame, the top of the sedimentation main frame is provided with fixed ears that engage with walkway plates on both sides, and the fixed ears are set higher than the walkway plates on both sides, and a water collecting trough is arranged at the lower end of the fixed ears, a water outlet is arranged at the central part of the water collecting trough corresponding to the outer side, and a serrated movable adjusting weir is arranged inside the water collecting trough, and the height of the serrated movable adjusting weir is set flush with the bottom of the water collecting trough, an inclined plate solid-liquid separation zone is arranged at the lower end of the water collecting trough, and a plurality of inclined plug plates are arranged inside the inclined plate solid-liquid separation zone.
[0006] Preferably, a flow fixing plate is arranged at the lower end of the inclined plug plate, and an isolation plate is arranged at the lower end of the flow fixing plate, and a water distribution area is arranged at the lower end of the isolation plate.
[0007] Preferably, an outer convex end is arranged on one side of the water distribution area, and a water inlet is arranged on the upper side of the outer convex end.
[0008] Preferably, a mud collection area is arranged at the lower side of the water inlet, and the two sides of the mud collection area are arranged by side panels, and the arrangement angle of the side panels on both sides is set to 45°.
[0009] Preferably, a mud discharge groove is provided at the junction of the side plates on both sides, and a reverse inclined plate is provided at the bottom end of the side plate on the side that is in contact with the water flow direction.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. Standard modular production, can be flexibly installed and modified according to actual needs, and the construction is convenient.
[0012] 2. The device is installed in the biochemical pool, and there is no need to set up a separate sedimentation tank, which greatly saves space.
[0013] 3. The mud-water separation structure is optimized in the device, and the separation effect is significantly improved.
[0014] 4. The separated sludge is almost 100% naturally returned to the biochemical pool, which not only has zero energy consumption and reduces the project cost and operating costs, but also greatly increases the sludge concentration in the biochemical pool and enhances the water purification effect.
[0015] 5. This device can be installed in biochemical pools with static or dynamic conditions of horizontal water flow, so it has a wide range of process matching and strong adaptability to transformation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a side view of the internal structure of the utility model;
[0017] Figure 2 This is a front view of the internal structure of the present invention.
[0018] In the figure: walkway plate 1, water collecting trough 2, inclined plate solid-liquid separation area 3, water distribution area 4, mud discharge trough 5, mud collecting area 6, outer convex end 7, fixed lifting ear 8, sawtooth movable regulating weir 9, sedimentation main frame 10, water outlet end 11, inclined plug plate 12, reverse inclined plate 13, isolation plate 14. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1 to Figure 2 , the utility model provides a technical solution:
[0021] Figure 1 This is a side view of the internal structure of the device. The main body is a sedimentation main frame 10. The top of the sedimentation main frame 10 is provided with fixed ears 8 that mesh with the walkway boards 1 on both sides, and the fixed ears 8 are set higher than the walkway boards 1 on both sides. The recessed ends of the walkway boards 1 on both sides are set at the corresponding positions, and the fixed ears 8 are placed in the recessed ends for effective meshing, so as to ensure the stability of both sides of the device after installation, and will not cause deviation due to the long-term influence of water flow during use. At the same time, a water collecting trough 2 is set at the lower end of the fixed ears 8, and a water outlet 11 is set at the central part of the water collecting trough 2 corresponding to the outer side, and a sawtooth movable regulating weir 9 is arranged inside the water collecting trough 2. The setting of the water collecting trough 2 is convenient for the isolation and storage of mud and water after natural separation in the early stage of the device, and it can be managed separately in advance, and the setting of the sawtooth movable regulating weir 9 is used to solve the different water storage and water outlet heights caused by different water levels. The problem is that the height of the sawtooth movable adjustment weir 9 is set flush with the bottom of the water collecting tank 2, the lower end of the water collecting tank 2 is set with an inclined plate solid-liquid separation area 3, and a number of inclined plug plates 12 are set inside the inclined plate solid-liquid separation area 3, and a flow fixing plate is placed at the lower end of the inclined plug plate 12, and an isolation plate 14 is set at the lower end of the flow fixing plate. A large insertion hole is set on the isolation plate 14 to start the first separation, and the flow port on the flow fixing plate is set according to the gap between the inclined plug plates 12, so that the muddy water can be separated while letting the clean water out from the upper end and the muddy water settle from the lower end. At the same time, a water distribution area 4 is set at the lower end of the isolation plate 14, and a convex end 7 is set on one side of the water distribution area 4, and a water inlet is set on the upper side of the convex end 7. The placement of the convex end 7 allows one side of the water distribution area 4 to contact the outside world, and serves as the only inlet of the sedimentation device to allow the muddy water to enter the sedimentation device for subsequent sedimentation operations;
[0022] Figure 2 This is a front view of the internal structure of the device. The main body is the water inlet. A mud collecting area 6 is arranged on the lower side of the water inlet, and the two sides of the mud collecting area 6 are arranged by side panels. At the same time, the arrangement angle of the side panels on both sides is set to 45°. A mud discharge trough 5 is arranged at the junction of the two side panels. The arrangement of the mud discharge trough 5 is convenient for handling the mud that falls after separation, to prevent blockage and cause the device to stop flowing, and a reverse inclined plate 13 is arranged at the bottom end of the side panel on the side that fits the water flow direction to avoid backflow.
[0023] In actual use, the sewage in the biochemical pool first enters the device from the water inlet, and the water is evenly distributed in the water distribution area 4 to slow down the flow rate of the water body; then the mud and water are efficiently separated in the inclined plate solid-liquid separation area 3, and the sludge naturally sinks to the mud collection area 6, and finally naturally drains back to the biochemical pool from the mud discharge trough 5. The upper clear water is collected by the overflow of the water collection tank 2 and then discharged to the subsequent purification unit. The sawtooth regulating weir overflowing to the water collection tank 2 is a movable component, which can be adjusted in time according to the water level elevation requirements during installation. In addition, when the concentration of activated sludge in the biochemical pool is very high or it has a large viscosity, the inclined plate filler of the inclined plate solid-liquid separation area 3 can be replaced by a three-phase separator to avoid sludge blockage while achieving the mud and water separation effect.
[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An integrated high-efficiency over-flow sedimentation device, comprising a sedimentation main frame (10), wherein a fixed lug (8) engaging with walkway plates (1) on both sides is arranged at the top of the sedimentation main frame (10), and the fixed lug (8) is arranged higher than the walkway plates (1) on both sides, and a water collecting trough (2) is arranged at the lower end of the fixed lug (8), characterized in that: A water outlet (11) is arranged at the central part of the water collecting trough (2) corresponding to the outer side, and a sawtooth movable regulating weir (9) is arranged inside the water collecting trough (2), and the sawtooth movable regulating weir (9) is arranged at a height flush with the bottom of the water collecting trough (2). An inclined plate solid-liquid separation area (3) is arranged at the lower end of the water collecting trough (2), and a plurality of inclined plug plates (12) are arranged inside the inclined plate solid-liquid separation area (3).
2. The integrated high-efficiency over-flow sedimentation device according to claim 1 is characterized in that: A circulation fixing plate is arranged at the lower end of the inclined insert plate (12), and an isolation plate (14) is arranged at the lower end of the circulation fixing plate. Meanwhile, a water distribution area (4) is arranged at the lower end of the isolation plate (14).
3. The integrated high-efficiency over-flow sedimentation device according to claim 2 is characterized in that: An outer convex end (7) is provided on one side of the water distribution area (4), and a water inlet is provided on the upper side of the outer convex end (7).
4. The integrated high-efficiency over-flow sedimentation device according to claim 3 is characterized in that: A mud collection area (6) is arranged at the lower side of the water inlet, and the two sides of the mud collection area (6) are arranged by side panels, and the arrangement angle of the side panels on both sides is set to 45 degrees.
5. The integrated high-efficiency over-flow sedimentation device according to claim 4, characterized in that: A mud discharge groove (5) is provided at the junction of the side plates on both sides, and a reverse oblique plate (13) is provided at the bottom end of the side plate on the side in contact with the water flow direction.