High-density sedimentation tank additionally provided with double layers of inclined plates
By designing a double-layer inclined plate structure in a high-density sedimentation tank, using a 50 mm small-hole inclined plate and an 80 mm large-hole inclined plate, the problem of degradation of water quality of inclined plates in a high-density sedimentation tank is solved, and the precipitation effect and treatment capacity are significantly improved.
Patent Information
- Application Number
- CN202421470483.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-25
AI Technical Summary
After long-term use of the existing high-density sedimentation tank, the water quality of the inclined plate effluent decreases and the turbidity is high, resulting in an increase in the scaling tendency of the circulating water system.
A high-density sedimentation tank with double-layer inclined plates was designed, using multiple small-hole inclined plates with apertures of 50 mm and multiple large-hole inclined plates with apertures of 80 mm. The cross-sectional size of the precipitation unit was optimized through the double-layer inclined plate precipitation test.
The precipitation effect is improved, the ability to treat small frames is enhanced, and the theoretical effective precipitation area of the precipitation part of the inclined plate is significantly improved, and the stability of the water quality of the inclined plate is extended.
Smart Images
Figure CN222752610U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-density sedimentation tanks, and more specifically, to a high-density sedimentation tank with double-layer inclined plates added. Background Art
[0002] The high-density sedimentation tank is based on the traditional inclined tube coagulation sedimentation tank. It optimizes the combination of three processes: mechanical mixing and coagulation, mechanical enhanced flocculation, and inclined tube sedimentation and separation. That is, the mixing zone, flocculation zone and sedimentation zone are connected in a straight line on the plane to form an organic whole.
[0003] Although the high-density sedimentation tank in the prior art can be used normally, it still has many disadvantages in actual use. For example, after a long period of use, the inclined plate sedimentation tank in the high-density sedimentation tank purifies sewage, the water quality of the inclined plate effluent decreases and the turbidity remains high. This is mainly due to the increase in side filtration backwash water and the shortened residence time of sewage in the inclined plate sedimentation tank, which causes the fine flocs in the sewage to fail to settle in time, resulting in the reddening phenomenon. The turbidity and suspended solids of the inclined plate effluent are high, which increases the scaling tendency of the circulating water system. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a high-density sedimentation tank with an additional double-layer inclined plate. By providing a plurality of small-hole inclined plates with a hole diameter of 50 mm and a plurality of large-hole inclined plates with a hole diameter of 80 mm, according to the analysis of the double-layer inclined plate sedimentation test results, the sedimentation effect will be greatly improved due to the change in the cross-sectional size of the sedimentation unit, and the ability to handle small frames will be greatly enhanced. At the same time, due to the addition of small-hole inclined plates, the theoretical effective sedimentation area of the inclined plate sedimentation part will also be significantly improved, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-density sedimentation tank with a double-layer inclined plate, comprising a water inlet, a mixing part is arranged on one side of the water inlet, the mixing part is connected with the water inlet, a flocculant dosing pipe is arranged on the front side of the mixing part, the flocculant dosing pipe passes through the outer wall of the mixing part and extends to the inside of the mixing part, a flocculation part is arranged on one side of the water inlet of the mixing part, a water supply pipe is arranged on one side of the flocculation part, an inclined plate sedimentation part is arranged at one end of the water supply pipe away from the flocculation part, a plurality of water outlet weir plates are arranged at the bottom of the inclined plate sedimentation part, a perforated mud discharge pipe is arranged between every two adjacent water outlet weir plates, a plurality of small-hole inclined plates are fixedly installed on the top side of the inclined plate sedimentation part, a large-hole inclined plate is arranged at the bottom of each of the small-hole inclined plates, and a plurality of large-hole inclined plates are fixedly installed inside the inclined plate sedimentation part.
[0006] In a preferred embodiment, the aperture of the plurality of small hole inclined plates is set to 50 mm.
[0007] In a preferred embodiment, the aperture of the plurality of large-hole inclined plates is set to 80 mm.
[0008] In a preferred embodiment, the length of the plurality of small hole inclined plates is set to 0.5 meters.
[0009] In a preferred embodiment, the length of the plurality of large-hole inclined plates is set to 1 meter.
[0010] In a preferred embodiment, the distance between the large-hole inclined plate and the outlet weir plate is 1.1 meters.
[0011] Technical effects and advantages of the utility model:
[0012] The utility model is provided with a plurality of small-hole inclined plates with a hole diameter of 50 mm and a plurality of large-hole inclined plates with a hole diameter of 80 mm. According to the analysis of the double-layer inclined plate sedimentation test results, the sedimentation effect will be greatly improved due to the change in the cross-sectional size of the sedimentation unit, and the ability to handle small frames will be greatly enhanced. At the same time, due to the addition of the small-hole inclined plates, the theoretical effective sedimentation area of the inclined plate sedimentation part will also be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] The figures are marked as follows: 1. water inlet; 2. mixing section; 3. flocculant dosing pipe; 4. flocculation section; 5. water delivery pipe; 6. inclined plate sedimentation section; 7. outlet weir plate; 8. perforated mud discharge pipe; 9. small-hole inclined plate; 10. large-hole inclined plate. DETAILED DESCRIPTION
[0015] 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.
[0016] As attached Figure 1As shown, the utility model provides a high-density sedimentation tank with an added double-layer inclined plate, comprising a water inlet portion 1, a mixing portion 2 is arranged on one side of the water inlet portion 1, the mixing portion 2 is communicated with the water inlet portion 1, a flocculant dosing pipe 3 is arranged on the front side of the mixing portion 2, the flocculant dosing pipe 3 penetrates the outer wall of the mixing portion 2 and extends to the inside of the mixing portion 2, a flocculation portion 4 is arranged on one side of the mixing portion 2 on the principle of the water inlet portion 1, a water delivery pipe 5 is arranged on one side of the flocculation portion 4, an inclined plate sedimentation portion 6 is arranged at one end of the water delivery pipe 5 away from the flocculation portion 4, a plurality of water outlet weir plates 7 are arranged at the bottom of the inclined plate sedimentation portion 6, a perforated mud discharge pipe 8 is arranged between every two adjacent water outlet weir plates 7, a plurality of small-hole inclined plates 9 are fixedly installed on the top side of the inclined plate sedimentation portion 6, a large-hole inclined plate 10 is arranged at the bottom of each of the small-hole inclined plates 9, and a plurality of large-hole inclined plates 10 are fixedly installed inside the inclined plate sedimentation portion 6.
[0017] The apertures of the plurality of small hole inclined plates 9 are set to 50 mm.
[0018] The aperture of the plurality of large-hole inclined plates 10 is set to 80 mm.
[0019] The length of the plurality of small hole inclined plates 9 is set to 0.5 meters.
[0020] The length of the plurality of large-hole inclined plates 10 is set to 1 meter.
[0021] The distance between the large hole inclined plate 10 and the water outlet weir plate 7 is 1.1 meters.
[0022] The specific implementation method is as follows: when using the utility model, a layer of small-hole inclined plate 9 with a length of 0.5m and an aperture of 50mm is added above the large-hole inclined plate 10 to increase the sedimentation area. In addition, a small-at-the-top and large-at-the-bottom aperture is adopted. In this way, the floating mud and mud running caused by unstable water flow are avoided at the junction of the large-hole inclined plate 10 and the small-hole inclined plate 9. Moreover, the flocs precipitated on the small-hole inclined plate 9 will not be in a suspended state again in the process of sliding down to the large-hole inclined plate 10, thereby reducing the phenomenon of being stirred up by the water flow and being carried out of the inclined plate sedimentation part 6. After the addition, the distance between the large-hole inclined plate 10 and the outlet weir plate 7 is 1.1m. According to the analysis of the double-layer inclined plate sedimentation test results, due to the change in the cross-sectional size of the sedimentation unit, the sedimentation effect will be greatly improved, and the ability to handle small frames will be greatly enhanced. At the same time, due to the addition of the small-hole inclined plate 9, the theoretical effective sedimentation area of the inclined plate sedimentation part 6 will also be significantly improved.
[0023] Working principle of this utility model:
[0024] Refer to the instruction manual Figure 1When using the utility model, by providing a plurality of small-hole inclined plates 9 with a hole diameter of 50 mm and a plurality of large-hole inclined plates 10 with a hole diameter of 80 mm, according to the analysis of the double-layer inclined plate sedimentation test results, the sedimentation effect will be greatly improved due to the change in the cross-sectional size of the sedimentation unit, and the ability to handle small frames will be greatly enhanced. At the same time, due to the addition of the small-hole inclined plates 9, the theoretical effective sedimentation area of the inclined plate sedimentation part 6 will also be significantly improved.
[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A high-density sedimentation tank with double-layer inclined plates, comprising a water inlet (1), characterized in that: A mixing section (2) is arranged on one side of the water inlet section (1), the mixing section (2) is in communication with the water inlet section (1), a flocculant dosing pipe (3) is arranged on the front side of the mixing section (2), the flocculant dosing pipe (3) penetrates the outer wall of the mixing section (2) and extends into the interior of the mixing section (2), a flocculation section (4) is arranged on one side of the mixing section (2) from the water inlet section (1), a water delivery pipe (5) is arranged on one side of the flocculation section (4), the water delivery pipe (5) is away from the flocculation section (1), and the water delivery pipe (5) is arranged on the front side of the mixing section (2). An inclined plate sedimentation portion (6) is provided at one end of the portion (4), a plurality of water outlet weir plates (7) are provided at the bottom of the inclined plate sedimentation portion (6), a perforated mud discharge pipe (8) is provided between every two adjacent water outlet weir plates (7), a plurality of small hole inclined plates (9) are fixedly installed on the top side of the inclined plate sedimentation portion (6), a large hole inclined plate (10) is provided at the bottom of each of the small hole inclined plates (9), and the plurality of large hole inclined plates (10) are fixedly installed inside the inclined plate sedimentation portion (6).
2. A high-density sedimentation tank with double-layer inclined plates according to claim 1, characterized in that: The apertures of the plurality of small hole inclined plates (9) are set to 50 mm.
3. A high-density sedimentation tank with double-layer inclined plates according to claim 1, characterized in that: The hole diameters of the plurality of large-hole inclined plates (10) are set to 80 mm.
4. The high-density sedimentation tank with double-layer inclined plates according to claim 1, characterized in that: The length of the plurality of small hole inclined plates (9) is set to 0.5 meters.
5. The high-density sedimentation tank with double-layer inclined plates according to claim 1, characterized in that: The length of the plurality of large-hole inclined plates (10) is set to 1 meter.
6. The high-density sedimentation tank with double-layer inclined plates according to claim 1, characterized in that: The distance between the large-hole inclined plate (10) and the water outlet weir plate (7) is 1.1 meters.