Rotational flow grit chamber for sewage treatment
By designing sand guide covers, oblique cutouts and conical blocks in the cyclone sand sink tank, the problem of sediment disorder in the traditional cyclone sand sink tank is solved, the sewage treatment efficiency is improved, and the centrifugal efficiency is enhanced through the design of the deflector and arc plate.
Patent Information
- Application Number
- CN202422011078.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-20
AI Technical Summary
When the traditional cyclone sand sink tank is injected with new sewage, the original cyclone effect inside will be affected, resulting in disorder in the sediment and sand, reducing the efficiency of sewage treatment.
A cyclone sand sink tank is designed, including a sand guide cover set up on the inner wall of the cylinder, oblique incision and conical blocks of the cylinder. Through the design of the sand guide cover and oblique incision, the mud and sand are thrown toward the inner wall of the cylinder during the cyclone and discharged through the sand guide cover to avoid the occurrence of mud and sand disorder.
It effectively reduces the disorder of silt and sand when injecting new sewage, improves the efficiency of sewage treatment, and extends the cyclone of silt and sand through the design of deflectors and curved plates, and enhances centrifugal efficiency.
Smart Images
Figure CN222969267U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment, in particular to a swirl grit chamber for sewage treatment. Background Technique
[0002] A swirl grit chamber is a grit removal device that uses mechanical force to control the flow pattern and velocity of water, accelerate the precipitation of sand particles, and let organic matter be carried away by the water flow.
[0003] In the prior art, as disclosed in Chinese Patent No.: CN215388118U, there is disclosed a swirl grit removal device for sewage treatment, which includes a bottom plate, a housing, and a sand discharge box. A motor is fixedly installed in the middle of the top of the housing. The output end of the motor is fixedly connected to a rotating rod. On the left and right sides of the lower end of the outer surface of the rotating rod, rotating brackets are fixedly connected, and a brush plate is fixedly connected to the other side of the rotating bracket. Through the functions of the motor, rotating rod, rotating bracket, brush plate, material guiding block, material guiding groove, sand guiding pipe, sand discharge box, sand level observation window, sealing plate, solenoid valve, electric telescopic rod, push plate, filter box, and filter plate, the utility model solves the problems that in the sand discharge process of the existing swirl grit removal device, sediment is likely to adhere to the inner wall of the grit chamber, resulting in incomplete sand discharge, poor sewage treatment effect, and at the same time, when the swirl grit chamber discharges sand, it contains a large amount of water body and needs to be separated again, which is very inconvenient.
[0004] In the above patent, although the device solves the problem of sediment adhering to the inner wall of the grit chamber, however, when new sewage is injected into the traditional swirl chamber, the original swirl effect inside will inevitably be affected, resulting in the disorder of the sediment that has been thrown to the pool wall, thereby reducing the sewage treatment efficiency. Therefore, the utility model provides a swirl grit chamber for sewage treatment. Content of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the utility model provides a swirl grit chamber for sewage treatment, which solves the problem that when new sewage is injected into the traditional swirl chamber, the original swirl effect inside will inevitably be affected, resulting in the disorder of the sediment that has been thrown to the pool wall, thereby reducing the sewage treatment efficiency.
[0006] To achieve the above object, the utility model is realized through the following technical solutions: A vortex grit chamber for sewage treatment, including a cylinder body, wherein a plurality of sand guiding covers are arranged at a position close to the middle of the inner wall of the cylinder body, and the inside of the sand guiding cover is arranged as a cavity. A cylinder is fixedly installed at the inner bottom of the cylinder body. A plurality of inclined cuts are formed through the outer surface of the cylinder. A conical block is arranged at a position close to the bottom of the inner wall of the cylinder. A swirling mechanism is arranged inside the cylinder body. The swirling mechanism includes a rotating shaft. A plurality of guide plates are fixedly installed at a position in the middle section of the cylinder body on the outer wall of the swirling mechanism. The top of the guide plate is fixedly connected with a plurality of sand cutting plates.
[0007] Preferably, a water inlet pipe is fixedly communicated with the outer wall of the cylinder body close to the top, and a sewage discharge pipe is fixedly communicated with the bottom of the cylinder body.
[0008] Preferably, an observation window is arranged at a position close to the bottom of the outer wall of the cylinder body, and a bracket is fixedly installed at a position close to the top of the inner wall of the cylinder body.
[0009] Preferably, a motor for driving the rotation of the rotating shaft is fixedly installed at the top of the bracket, and a plurality of arc-shaped plates are fixedly installed at a position in the lower half section of the cylinder body on the outer wall of the rotating shaft.
[0010] Preferably, a conical cover is fixedly connected at a position below the sand guiding cover on the inner wall of the cylinder body. The bottom end of the conical cover is fixedly connected with the top end of the cylinder. A sand discharge pump is arranged at a position close to the bottom of the outer wall of the cylinder body.
[0011] Preferably, the gap between the opposite side surfaces of the cylinder, the conical cover and the cylinder body forms a sediment chamber for accommodating sediment.
[0012] Beneficial effects
[0013] The utility model provides a vortex grit chamber for sewage treatment. Compared with the prior art, the following beneficial effects are achieved:
[0014] (1). For the vortex grit chamber for sewage treatment, part of the sediment thrown to the inner wall of the cylinder body by centrifugal force will enter the sand guiding cover, and this part of the sediment will be discharged from the conical cover through the outlet obliquely below the sand guiding cover. When the sediment enters the inside of the cylinder, under the action of centrifugal force, it enters the sediment chamber outside the cylinder through the inclined cut. And the sediment in the sediment chamber will only rotate along the swirling direction close to the inner wall of the cylinder body and is difficult to enter the inside of the cylinder through the inclined cut from the sediment chamber. This reduces the disorder phenomenon of the sediment that has been thrown to the pool wall when injecting new sewage, and improves the sewage treatment effect.
[0015] (2) The cyclone grit chamber for sewage treatment drives the rotating shaft to rotate by starting the motor. At this time, the guide plate and the arc plate will rotate counterclockwise according to the swirling direction. On the one hand, it is to improve the swirling effect. On the other hand, the guide plate will slightly cut the sewage upward, thereby prolonging the swirling period of the sediment, increasing part of the residence time for the sediment to be thrown towards the inner wall of the cylinder, so as to achieve a better centrifugal effect. At the same time, the sand cutting plate is tangent to the sewage, which will accelerate the sediment being thrown towards the inner wall of the cylinder, thereby improving the centrifugal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three-dimensional external view schematic diagram of the present utility model;
[0017] Figure 2 is a sectional view of the cylinder body of the present utility model;
[0018] Figure 3 is a three-dimensional external view schematic diagram of the swirling mechanism of the present utility model;
[0019] Figure 4 is a sectional view of the cylinder of the present utility model;
[0020] Figure 5 is a three-dimensional external view schematic diagram of the sand guide cover of the present utility model.
[0021] In the figure: 1. Cylinder body; 11. Water inlet pipe; 12. Observation window; 13. Sewage discharge pipe; 14. Support; 2. Swirling mechanism; 21. Motor; 22. Rotating shaft; 23. Guide plate; 24. Sand cutting plate; 25. Arc plate; 3. Cylinder; 31. Oblique cut; 4. Conical block; 5. Sand guide cover; 6. Conical cover; 7. Sand discharge pump. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] The present utility model provides two technical solutions:
[0024] Figures 1 - 5The first embodiment is shown: A cyclone grit chamber for sewage treatment includes a cylindrical body 1. A plurality of sand guide covers 5 are arranged at a position near the middle of the inner wall of the cylindrical body 1, and the inside of the sand guide cover 5 is provided with a cavity. The sand guide cover 5 is inclined, which facilitates the sediment to slide down along the direction of the swirling flow. A cylinder 3 is fixedly installed at the inner bottom of the cylindrical body 1. A plurality of inclined cuts 31 are penetrated on the outer surface of the cylinder 3. A conical block 4 is arranged at a position near the bottom of the inner wall of the cylinder 3. The conical block 4 can prevent the sediment from accumulating in the cylinder 3. A swirling mechanism 2 is arranged inside the cylindrical body 1. The swirling mechanism 2 includes a rotating shaft 22. A plurality of guide plates 23 are fixedly installed at a position in the middle section of the cylindrical body 1 on the outer wall of the swirling mechanism 2. The top of the guide plate 23 is fixedly connected with a plurality of sand cutting plates 24. The guide plate 23 will slightly cut the sewage upward, thereby prolonging the swirling period of the sediment and increasing the residence time of the sediment thrown to the inner wall of the cylindrical body 1 to achieve a better centrifugal effect. At the same time, the sand cutting plate 24 is tangent to the sewage, which will accelerate the sediment being thrown to the inner wall of the cylindrical body 1, thereby improving the centrifugal efficiency.
[0025] A water inlet pipe 11 is fixedly communicated with the outer wall of the cylindrical body 1 near the top. Sewage can enter the inside along the tangent direction of the cylindrical body 1 through the water inlet pipe 11 and form a vortex. A sewage discharge pipe 13 is fixedly communicated with the bottom of the cylindrical body 1. By setting the sewage discharge pipe 13, it is convenient to discharge the residual sewage inside the cylindrical body 1 during later maintenance.
[0026] An observation window 12 is arranged at a position near the bottom of the outer wall of the cylindrical body 1. A support 14 is fixedly installed at a position near the top of the inner wall of the cylindrical body 1. By setting the observation window 12, it is convenient for personnel to observe the sediment situation inside the cylindrical body 1.
[0027] Figures 1 - 5 The second embodiment is shown. The main difference from the first embodiment is that: A motor 21 for driving the rotation of the rotating shaft 22 is fixedly installed at the top of the support 14. A plurality of arc-shaped plates 25 are fixedly installed at a position in the lower half of the cylindrical body 1 on the outer wall of the rotating shaft 22. Through the arc-shaped plates 25, the sewage in the area at the bottom of the cylindrical body 1 continuously has centrifugal force, so that the sediment in the sediment chamber cannot enter the inside of the cylinder 3.
[0028] A conical cover 6 is fixedly connected at a position on the inner wall of the cylindrical body 1 below the sand guide cover 5. By setting the conical cover 6, it is convenient to accumulate some sediment inside the cylindrical body 1. The bottom end of the conical cover 6 is fixedly connected with the top end of the cylinder 3. A sand discharge pump 7 is arranged at a position near the bottom of the outer wall of the cylindrical body 1. By setting the sand discharge pump 7, it is convenient to discharge the sediment precipitated inside the cylindrical body 1.
[0029] The gap between the opposite side surfaces of the cylinder 3, the conical cover 6 and the cylindrical body 1 forms a sediment bin for accommodating sediment.
[0030] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0031] During operation, sewage enters the interior along the tangential direction of the cylinder body 1 through the water inlet pipe 11 and forms a vortex. Under the action of centrifugal force, the sediment in the sewage is thrown towards the inner wall of the cylinder body 1, and some sediment will enter the sand guide cover 5. This part of the sediment is discharged from the conical cover 6 through the outlet diagonally below the sand guide cover 5. When the sediment enters the inner side of the cylinder 3, under the action of centrifugal force, it enters the sediment chamber on the outer side of the cylinder 3 through the inclined cut 31. The sediment in the sediment chamber can only rotate along the swirling flow direction close to the inner wall of the cylinder body 1 and is difficult to enter the inner side of the cylinder 3 through the inclined cut 31. This reduces the phenomenon of sediment that has been thrown towards the pool wall being disturbed when new sewage is injected, improves the sewage treatment effect, and when the sediment enters the sand guide cover 5, the sediment content in the sewage in the middle and upper regions near the inner part of the cylinder body 1 will be reduced to a certain extent, thereby reducing the resistance of the remaining sediment being thrown towards the inner wall to a certain extent and improving the sediment swirling effect. By starting the motor 21 to drive the rotation of the rotating shaft 22, at this time, the guide plate 23 and the arc plate 25 will rotate counterclockwise along the swirling flow direction. On the one hand, it is to improve the vortex effect. On the other hand, the guide plate 23 will slightly cut the sewage upwards, thereby prolonging the swirling period of the sediment and increasing the residence time of the sediment being thrown towards the inner wall of the cylinder body 1 to achieve a better centrifugal effect. At the same time, the sediment cutting plate 24 is tangent to the sewage, which will accelerate the throwing of the sediment towards the inner wall of the cylinder body 1, thereby improving the centrifugal efficiency. And through the arc plate 25, the sewage in the area at the bottom of the cylinder body 1 continuously has centrifugal force, so that the sediment in the sediment chamber cannot enter the inner side of the cylinder 3.
[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cyclone grit chamber for sewage treatment, comprising a cylinder (1), characterized in that: A plurality of sand guide covers (5) are arranged near the middle of the inner wall of the cylinder (1), and the interior of the sand guide covers (5) is arranged in a hollow cavity. A cylinder (3) is fixedly mounted on the inner bottom of the cylinder (1), and a plurality of oblique cuts (31) are formed through the outer surface of the cylinder (3). A conical block (4) is arranged near the bottom of the inner wall of the cylinder (3); A swirl mechanism (2) is arranged inside the cylinder (1), the swirl mechanism (2) comprises a rotating shaft (22), a plurality of guide plates (23) are fixedly mounted on the outer wall of the swirl mechanism (2) at a position in the middle section of the cylinder (1), and a plurality of sand cutting plates (24) are fixedly connected to the top of the guide plates (23).
2. A cyclone grit chamber for sewage treatment according to claim 1, characterized in that: A water inlet pipe (11) is fixedly connected to a position near the top of the outer wall of the cylinder (1), and a sewage discharge pipe (13) is fixedly connected to the bottom of the cylinder (1).
3. A cyclone grit chamber for sewage treatment according to claim 1, characterized in that: An observation window (12) is provided on the outer wall of the cylinder (1) near the bottom, and a bracket (14) is fixedly mounted on the inner wall of the cylinder (1) near the top.
4. A cyclone grit chamber for sewage treatment according to claim 3, characterized in that: A motor (21) for driving the rotating shaft (22) to rotate is fixedly mounted on the top of the bracket (14), and a plurality of arc-shaped plates (25) are fixedly mounted on the outer wall of the rotating shaft (22) at a position located in the lower half of the cylinder (1).
5. The cyclone grit chamber for sewage treatment according to claim 1, characterized in that: A conical cover (6) is fixedly connected to the inner wall of the cylinder (1) at a position below the sand guide cover (5); the bottom end of the conical cover (6) is fixedly connected to the top end of the cylinder (3); and a sand discharge pump (7) is provided on the outer wall of the cylinder (1) near the bottom.
6. A cyclone grit chamber for sewage treatment according to claim 5, characterized in that: The gaps between the cylinder (3), the conical cover (6) and the opposite side surfaces of the cylinder body (1) form a sediment bin for containing sediment.