Precise desanding device
By designing a precise sand removal device, using multiple sand removal discs and water diversion discs, the problem of insufficient removal capacity of fine gravel in traditional sand removal technology is solved, and the effect of efficient removal of fine gravel is achieved, and the advantages of small footprint and low energy consumption are provided.
Patent Information
- Application Number
- CN202421298795.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The traditional sand removal technology has seriously insufficient ability to remove fine gravel, resulting in a large amount of gravel entering the subsequent process treatment project.
A precise sand removal device is designed, including a sand removal pool and a sand removal disc. By setting up multiple sand removal discs, a stacked disc body is formed, and a structure composed of a water diversion plate, a sedimentation funnel and a diverting pipe is used to form a swirl flow and subside the sand particles into the collection box under the action of gravity, improving the efficiency of fine sand removal.
The device effectively separates sand particles and large-grain organic matter in sewage, improves the removal efficiency of fine sand, reduces the accumulation of sand and gravel on the surface of the sinking funnel, and has a small overall footprint and low energy consumption.
Smart Images
Figure CN222550206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand removal devices, in particular to a precise sand removal device. Background Art
[0002] At present, the common types of grit tanks in sewage treatment plants include vortex grit tanks, horizontal flow grit tanks, aerated grit tanks, etc. These types of grit tanks use different methods to remove sand from sewage. The removal principles of grit tanks are relatively simple, but how to remove the sand that has settled to the bottom of the tank has become a more troublesome operational problem in the operation and management of sewage treatment plants.
[0003] At present, the grit chamber cannot intercept sand particles at all, but the proportion of MLVSS in the sludge concentration in the biological pool is extremely low. This is mainly because the standard grit chambers designed at this stage are mainly designed to remove sand particles of 0.2 mm. If the particle size of the inorganic sand particles in the influent is less than 0.2 mm and the relative density is lower than 2.5, they cannot be effectively removed by the grit chamber, resulting in an increase in the inorganic components of the activated sludge in the biochemical stage.
[0004] As a result, traditional sand removal technology is seriously insufficient in its ability to remove fine sand and gravel, resulting in a large amount of sand and gravel entering the subsequent process treatment project. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a precise sand removal device, which solves the problem that the traditional sand removal technology is seriously insufficient in removing fine sand and gravel, resulting in a large amount of sand and gravel entering the subsequent process treatment project.
[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a precise sand removal device, including a sand removal pool and a sand removal disc, the sand removal disc is located inside the sand removal pool, a drain pipe is arranged on the left side of the surface of the sand removal pool, a support frame is arranged at the lower end of the inside of the sand removal pool, a collection box is arranged inside the sand removal pool on the inner side of the support frame, the upper end of the support frame and the sand removal disc are fixedly connected by a connecting assembly, and a cleaning assembly is arranged on the inner side of the sand removal disc;
[0007] The four sand removal discs are distributed at equal intervals, and the sand removal discs are composed of a water diversion disc, a sand settling funnel and a diversion pipe. The sand settling funnel is fixedly installed at the lower end of the inner side of the water diversion disc, and a diversion pipe is arranged on the outer side of the surface of the water diversion disc. The four diversion pipes are fixedly connected with a water inlet pipe at one end away from the water diversion disc, one end of the water inlet pipe is designed in a rectangular structure and is adapted to the diversion pipe, and the other end of the water inlet pipe is designed in a rectangular structure and extends to the outside of the desanding tank.
[0008] Preferably, an annular fixing plate is fixedly connected to the upper end of the support frame, and the inner diameter of the annular fixing plate is larger than the inner diameter of the water guide plate.
[0009] Preferably, the upper end of the collecting box is adapted to the lower end of the sand settling funnel, and an extraction interface is provided on the surface of the collecting box, and the extraction interface is externally connected to a suction pump through a pipeline.
[0010] Preferably, the connection assembly includes an outer fixing plate, the upper end of the annular fixing plate is fixedly connected to the outer fixing plate, the outer fixing plates are distributed in an annular array, and the inner side of the surface of the outer fixing plate is fixedly connected to a connecting block.
[0011] Preferably, the outer fixing plate is fixedly connected to the water guide tray, and the upper and lower ends of the connecting block are respectively connected to the surface of the water guide tray.
[0012] Preferably, the cleaning assembly includes a rotating shaft, a mounting seat is fixedly connected to the surface of the rotating shaft, a cleaning plate is fixedly connected to the mounting seat, the upper end of the outer fixed plate is fixedly connected to a motor seat, and a low-speed motor is installed on the upper end of the motor seat.
[0013] Preferably, the output end of the low-speed motor is fixedly connected to the upper end of the rotating shaft, the rotating shaft is rotatably connected to the motor seat, there are four mounting seats distributed at equal intervals and corresponding one to one with the sand removal discs, and two cleaning plates are arranged on the left and right sides of the rotating shaft, and the two cleaning plates are fitted and connected to the surface of the inner side of the sand settling funnel.
[0014] Beneficial Effects
[0015] The utility model provides a precise sand removal device. Compared with the prior art, it has the following beneficial effects:
[0016] 1. The precise sand removal device is equipped with a sand removal disc, a water inlet pipe and a collection box. Multiple sand removal discs form a stacked disc body. When water enters, it is drained by the water inlet pipe and is drained into the water guide disc through multiple diversion pipes to form a vortex. Under the action of gravity, it naturally slides along the inclined surface of each sand settling funnel to the central opening and finally settles into the collection box. It can effectively separate the sand particles and large-grained organic matter in the sewage and improve the removal efficiency of fine sand.
[0017] 2. The precise sand removal device is equipped with a water guide plate and a cleaning component. When the sewage flows in the water guide plate, it flows on the hydrophobic inclined surface, which greatly reduces the accumulation of grease and keeps the water guide plate clean. The multi-stage stacking distribution method has the advantages of small footprint, low energy consumption, and good removal effect on fine sand. It also increases the contact area between the sewage and the plate during sand settling and shortens the sedimentation distance. At the same time, the rotating shaft drives the cleaning plate to rotate, cleans the precipitated sand and gravel, and reduces the accumulation of sand and gravel on the surface of the sand settling funnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the support frame structure of the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the sand removal disc of the utility model;
[0021] Figure 4 It is a schematic diagram of the cleaning component structure of the utility model.
[0022] In the figure: 1. sand removal tank; 2. sand removal disc; 21. water guide plate; 22. sand settling funnel; 23. diversion pipe; 24. water inlet pipe; 3. drainage pipe; 4. support frame; 41. annular fixing plate; 5. collection box; 51. extraction interface; 6. connecting assembly; 61. outer fixing plate; 62. connecting block; 7. cleaning assembly; 71. rotating shaft; 72. mounting seat; 73. cleaning plate; 74. motor seat; 75. low-speed motor. DETAILED DESCRIPTION
[0023] 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.
[0024] See also Figure 1-4 The utility model provides a technical solution: a precise sand removal device, including a sand removal pool 1 and a sand removal disc 2, the sand removal disc 2 is located inside the sand removal pool 1, and four sand removal discs 2 are evenly spaced. The sand removal disc 2 is composed of a water guide plate 21, a sand settling funnel 22 and a diversion pipe 23. The lower end of the inner side of the water guide plate 21 is fixedly installed with a sand settling funnel 22, and the outer side of the surface of the water guide plate 21 is provided with a diversion pipe 23. The ends of the four diversion pipes 23 away from the water guide plate 21 are fixedly connected with a water inlet pipe 24, and one end of the water inlet pipe 24 is designed in a rectangular structure, and is connected to the diversion pipe 23 is adapted, and the other end of the water inlet pipe 24 is designed in a rectangular structure and extends to the outside of the desanding tank 1. Multiple desanding discs 2 form a stacked disc body, so that when water enters, it is drained by the water inlet pipe 24 and is drained into the water guide disc 21 through multiple diversion pipes 23 to form a vortex. Under the action of gravity, it naturally slides down to the central opening along the inclined surface of each sand settling funnel 22, which is convenient for sand removal. It has the advantages of small overall footprint, low energy consumption, and good removal effect on fine sand. In the sand settling process, the contact area between the sewage and the disc body is increased, and the sedimentation distance is shortened;
[0025] A drainage pipe 3 is arranged on the left side of the surface of the sand removal pool 1, a support frame 4 is arranged at the lower end of the interior of the sand removal pool 1, an annular fixing plate 41 is fixedly connected to the upper end of the support frame 4, the inner diameter of the annular fixing plate 41 is larger than the inner diameter of the water guide plate 21, a collecting box 5 is arranged inside the sand removal pool 1 on the inner side of the support frame 4, the upper end of the collecting box 5 is adapted to the lower end of the sand settling funnel 22, an extraction interface 51 is opened on the surface of the collecting box 5, the extraction interface 51 is connected to an external suction pump through a pipeline, and the upper end of the support frame 4 and the sand removal disc 2 are connected by a connecting assembly. The connecting assembly 6 is fixedly connected to the outer fixing plate 61. The upper end of the annular fixing plate 41 is fixedly connected to the outer fixing plate 61. The outer fixing plates 61 are distributed in an annular array. The inner side of the surface of the outer fixing plate 61 is fixedly connected to a connecting block 62. The outer fixing plate 61 is fixedly connected to the water diversion plate 21. The upper and lower ends of the connecting block 62 are respectively connected to the surface of the water diversion plate 21. The gravel enters the collecting box 5 under the action of gravity for collection, and the gravel can be pumped to the outside by connecting an extraction pump to separate the sand and water.
[0026] The inner side of the sand removing disc 2 is provided with a cleaning assembly 7, which includes a rotating shaft rod 71, a mounting seat 72 is fixedly connected to the surface of the rotating shaft rod 71, and a cleaning plate 73 is fixedly connected to the mounting seat 72. The upper end of the outer fixed plate 61 is fixedly connected to a motor seat 74, and a low-speed motor 75 is installed on the upper end of the motor seat 74. The output end of the low-speed motor 75 is fixedly connected to the upper end of the rotating shaft rod 71, and the rotating shaft rod 71 is rotatably connected to the motor seat 74. There are four mounting seats 72 distributed at equal intervals and corresponding to the sand removing disc 2 one by one. Two cleaning plates 73 are arranged on the left and right sides of the rotating shaft rod 71. The two cleaning plates 73 are fitted and connected to the surface of the inner side of the sand settling funnel 22, and the rotating shaft rod 71 is driven by the low-speed motor 75 to rotate so that the cleaning plate 73 rotates to clean the surface of the sand settling funnel 22, brush off the precipitated sand and gravel, and reduce the accumulation of sand and gravel on the surface of the sand settling funnel 22.
[0027] During operation, multiple sand removal discs 2 form a stacked disc body, so that when water enters, it is drained by the water inlet pipe 24, and is drained into the water guide disc 21 through multiple diversion pipes 23 to form a vortex. Under the action of gravity, it naturally slides along the inclined surface of each sand settling funnel 22 to the central opening, which is convenient for sand removal. It has the advantages of small overall footprint, low energy consumption, and good removal effect on fine sand. In the sand settling process, the contact area between the sewage and the disc body is increased, and the sedimentation distance is shortened. Under the action of gravity, the gravel enters the collection box 5 for collection, and the gravel can be extracted to the outside by connecting the extraction pump to separate sand and water. The low-speed motor 75 is used to drive the rotating shaft 71 to rotate, so that the cleaning plate 73 rotates to clean the surface of the sand settling funnel 22, brush off the precipitated gravel, and reduce the accumulation of gravel on the surface of the sand settling funnel 22.
[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
Claims
1. A precise sand removal device, comprising a sand removal tank (1) and a sand removal disc (2), characterized in that: The sand removal disc (2) is located inside the sand removal pool (1); a drainage pipe (3) is provided on the left side of the surface of the sand removal pool (1); a support frame (4) is provided at the lower end inside the sand removal pool (1); a collection box (5) is provided inside the sand removal pool (1) and located inside the support frame (4); the upper end of the support frame (4) and the sand removal disc (2) are fixedly connected via a connecting assembly (6); and a cleaning assembly (7) is provided inside the sand removal disc (2); Four desanding discs (2) are distributed at equal intervals. The desanding discs (2) are composed of a water guide disc (21), a sand settling funnel (22) and a diversion pipe (23). The lower end of the inner side of the water guide disc (21) is fixedly mounted with the sand settling funnel (22). The outer side of the surface of the water guide disc (21) is provided with a diversion pipe (23). One end of the four diversion pipes (23) away from the water guide disc (21) is fixedly connected with a water inlet pipe (24). One end of the water inlet pipe (24) is designed in a rectangular structure and is adapted to the diversion pipe (23). The other end of the water inlet pipe (24) is designed in a rectangular structure and extends to the outer side of the desanding tank (1).
2. The precise sand removal device according to claim 1, characterized in that: An annular fixing plate (41) is fixedly connected to the upper end of the support frame (4), and the inner diameter of the annular fixing plate (41) is larger than the inner diameter of the water guide plate (21).
3. The precise sand removal device according to claim 1, characterized in that: The upper end of the collection box (5) is adapted to fit the lower end of the sand settling funnel (22), and an extraction interface (51) is provided on the surface of the collection box (5), and the extraction interface (51) is externally connected to a suction pump through a pipeline.
4. The precise sand removal device according to claim 2, characterized in that: The connection assembly (6) comprises an outer fixing plate (61), the upper end of the annular fixing plate (41) is fixedly connected to the outer fixing plate (61), the outer fixing plates (61) are distributed in an annular array, and the inner side of the surface of the outer fixing plate (61) is fixedly connected to a connecting block (62).
5. The precise sand removal device according to claim 4, characterized in that: The outer fixing plate (61) is fixedly connected to the water guide plate (21), and the upper and lower ends of the connecting block (62) are respectively connected to the surface of the water guide plate (21).
6. The precise sand removal device according to claim 5, characterized in that: The cleaning assembly (7) comprises a rotating shaft (71), a mounting seat (72) is fixedly connected to the surface of the rotating shaft (71), a cleaning plate (73) is fixedly connected to the mounting seat (72), the upper end of the outer fixed plate (61) is fixedly connected to a motor seat (74), and a low-speed motor (75) is installed at the upper end of the motor seat (74).
7. The precise sand removal device according to claim 6, characterized in that: The output end of the low-speed motor (75) is fixedly connected to the upper end of the rotating shaft (71), the rotating shaft (71) is rotatably connected to the motor seat (74), four mounting seats (72) are evenly spaced and correspond one to one with the sand removal discs (2), two cleaning plates (73) are arranged on the left and right sides of the rotating shaft (71), and the two cleaning plates (73) are fitted and connected to the surface of the inner side of the sand settling funnel (22).