CN219879320U - Efficient spiral sand-water separator - Google Patents
Efficient spiral sand-water separator Download PDFInfo
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- CN219879320U CN219879320U CN202320943658.0U CN202320943658U CN219879320U CN 219879320 U CN219879320 U CN 219879320U CN 202320943658 U CN202320943658 U CN 202320943658U CN 219879320 U CN219879320 U CN 219879320U
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- tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 239000004576 sand Substances 0.000 claims abstract description 70
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000013049 sediment Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 9
- 239000006228 supernatant Substances 0.000 description 9
- 230000005484 gravity Effects 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model provides a high-efficiency spiral sand-water separator which comprises a water tank, a sand collecting groove, a spiral sheet and a driving piece, wherein the water tank, the sand collecting groove, the spiral sheet and the driving piece are obliquely arranged at the inner bottom of the water tank; the spiral sheet is arranged in the sand collecting groove, and one end of the spiral sheet is in transmission connection with the driving piece; the top end of the water tank is provided with a water inlet pipe, and the side wall of the upper part of the water tank is provided with a water outlet; the buffer piece is arranged at the upper part in the water tank and is positioned below the water outlet end of the water inlet pipe; the buffer piece comprises a chassis and a side wall, the side wall is arranged along the periphery of the chassis, and the side wall and the chassis form a buffer cavity with an upward opening; water outlets are uniformly distributed on the bottom plate and the side wall of the buffer piece. The high-efficiency spiral sand-water separator provided by the utility model reduces the interference to sand sediment at the bottom of the water tank and effectively improves the sand-water separation efficiency.
Description
Technical Field
The utility model belongs to the technical field of environmental protection, and particularly relates to a high-efficiency spiral sand-water separator.
Background
In the sewage treatment process, sand-water mixed liquid precipitated by a sand setting tank is subjected to sand and water separation in a spiral sand-water separator, sand grains with high density are freely settled at the bottom of an inclined U-shaped tank under the action of gravity, and the spiral in the U-shaped tank drives the sand grains at the bottom of the tank to move upwards along the direction of the inclined spiral axis, so that the sand grains fall into a sand container under the action of gravity when running to a discharge hole. The supernatant liquid after precipitation passes through a skimming plate to block scum, and is discharged through a water outlet. The efficiency of the spiral sand-water separators in the prior art is relatively low, typically expressed in: 1. the inflow water of the equipment directly enters from the upper part, the fluid is concentrated, the impact force is high, the sand grains which have sunk into the sand collecting groove are disturbed, the sedimentation effect is directly affected, and part of sand grains float upwards and flow out from the water outlet along with the supernatant, so that the separation effect is reduced; 2. a small amount of scum in the mixed liquid inevitably enters the sand-water separator, and although a dirt blocking body is arranged at a water outlet, only part of scum can be blocked, and the quality of supernatant liquid is affected.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the efficient spiral sand-water separator reduces interference to sand sediment at the bottom of the water tank and effectively improves sand-water separation efficiency.
In order to solve the technical problems, the embodiment of the utility model provides a high-efficiency spiral sand-water separator, which comprises a water tank, a sand collecting groove, a spiral sheet and a driving piece, wherein the water tank is obliquely arranged at the inner bottom of the water tank, the sand collecting groove is arranged in the water tank and is obliquely paved along the bottom of the water tank, and the higher end of the sand collecting groove extends out of the water tank; the spiral sheet is arranged in the sand collecting groove, and one end of the spiral sheet is in transmission connection with the driving piece; a water inlet pipe is arranged at the top end of the water tank, and a water outlet is arranged on the side wall of the upper part of the water tank; the buffer piece is arranged at the upper part in the water tank and is positioned below the water outlet end of the water inlet pipe; the buffer piece comprises a chassis and a side wall, the side wall is arranged along one circle of the chassis, and the side wall and the chassis form a buffer cavity with an upward opening; water outlets are uniformly distributed on the bottom plate and the side wall of the buffer piece.
As a further improvement of the embodiment of the present utility model, the chassis is rectangular or circular.
As a further improvement of the embodiment of the utility model, the height of the water outlet end of the water inlet pipe is lower than that of the water outlet.
As a further improvement of the embodiment of the utility model, the distance between the opening of the buffer cavity of the buffer piece and the water outlet end of the water inlet pipe in the height direction is 20-150 mm.
As a further improvement of the embodiment of the utility model, the water tank further comprises a filter screen, wherein the filter screen is arranged at the upper part in the water tank, and the height of the filter screen is between the height of the water outlet and the height of the water outlet end of the water inlet pipe.
As a further improvement of the embodiment of the utility model, the diameter of the holes of the filter screen is 0.15-0.20 mm.
As a further improvement of the embodiment of the present utility model, the filter screen is wave-shaped.
As a further improvement of the embodiment of the utility model, the sand collecting tank is of a U-shaped structure, and a cover plate is arranged on a notch of the sand collecting tank positioned at the middle upper part in the water tank.
As a further improvement of the embodiment of the utility model, the bottom of the higher end of the sand collecting tank is provided with a discharge hole, and the height of the discharge hole is higher than that of the top end of the water tank.
As a further improvement of the embodiment of the utility model, the inclination angle of the sand collecting groove is 20-30 degrees.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects: according to the high-efficiency spiral sand-water separator provided by the utility model, the buffer piece is arranged below the water outlet end of the water inlet pipe, and the mixed liquid in the sedimentation tank falls into the buffer cavity of the buffer piece through the water inlet pipe; meanwhile, the small water flow flowing out of the side wall holes increases the coverage area of the falling water flow, and further prevents sand from floating upwards.
Drawings
Fig. 1 is a schematic structural view of a high-efficiency spiral sand-water separator according to an embodiment of the present utility model.
The drawings are as follows: the device comprises a driving piece 1, a spiral sheet 2, a sand collecting groove 3, a water tank 4, a filter screen 5, a water inlet pipe 6, a buffer piece 7, a water outlet 8 and a discharge hole 9.
Detailed Description
The technical scheme of the utility model is described in detail below with reference to the accompanying drawings.
The embodiment of the utility model provides a high-efficiency spiral sand-water separator, which is shown in fig. 1 and comprises a water tank 4, a sand collecting groove 3, a spiral sheet 2 and a driving piece 1, wherein the water tank is obliquely arranged at the inner bottom. The sand collecting tank 3 is arranged in the water tank 4 and is obliquely paved along the bottom of the water tank 4, and the higher end of the sand collecting tank 3 extends out of the water tank. The inclination angle of the inner bottom of the water tank is 20-30 degrees, and the inclination angle of the sand collecting groove 3 is consistent with the inner bottom of the water tank. The sand collecting tank 3 is of a U-shaped structure, and sand grains in the water tank fall into the sand collecting tank 3 after being freely precipitated. The bottom of the higher end of the sand collecting tank 3 is provided with a discharge hole 9, and the discharge hole 9 is used for discharging sand grains. Preferably, the height of the discharge hole 9 is higher than the top end of the water tank, which is favorable for dewatering sand grains. The spiral sheet 2 is arranged in the sand collecting groove 3, and one end of the spiral sheet 2 is in transmission connection with the driving piece 1. The top of the water tank 4 is provided with a water inlet pipe 6, and the side wall of the upper part of the water tank 4 is provided with a water outlet 8.
The high-efficiency spiral sand-water separator of the embodiment further comprises a buffer member 7, and as shown in fig. 1, the buffer member 7 is arranged at the upper part in the water tank and is positioned below the water outlet end of the water inlet pipe 6. The buffer 7 comprises a chassis and a side wall, the side wall is arranged along the periphery of the chassis, and the side wall and the chassis form a buffer cavity with an upward opening. Water outlets are uniformly distributed on the bottom plate and the side wall of the buffer piece. Preferably, the chassis is rectangular or circular.
According to the high-efficiency spiral sand-water separator, the buffer piece is arranged below the water outlet end of the water inlet pipe, mixed liquid in the sedimentation tank falls into the buffer cavity of the buffer piece through the water inlet pipe, and as the water outlet holes are formed in the chassis and the side wall, the mixed liquid is decomposed into a plurality of small water flows through the water outlet holes, the mixed liquid flows into the water tank through the water outlet holes, the downward impact force of the water flow is reduced, the interference on sand sediment at the bottom of the water tank is reduced, and sand floating is prevented. Meanwhile, the small water flow flowing out of the side wall holes increases the coverage area of the falling water flow, and further prevents sand from floating upwards.
Preferably, the distance between the opening of the buffer cavity of the buffer member 7 and the water outlet end of the water inlet pipe 6 in the height direction is 20-150 mm.
Preferably, the high-efficiency spiral sand-water separator of this embodiment further includes a filter screen 5, as shown in fig. 1, the filter screen 5 is horizontally disposed at the upper portion in the water tank, the height of the water outlet end of the water inlet pipe 6 is lower than the height of the water outlet 8, and the height of the filter screen is between the height of the water outlet and the height of the water outlet end of the water inlet pipe. Preferably, the diameter of the holes of the filter screen 5 is 0.15-0.20 mm. Part of the fine sand grains in the water tank move upwards along with the supernatant, and when the sand grains go upwards to the filter screen 5, the filter screen plays a role in filtering the mixed liquid again, and the supernatant filtered again by the filter screen flows out from the water outlet 8. The scum and the fine sand with the grain diameter larger than the diameter of the holes of the filter screen are trapped below the filter screen, and the sand moves to the bottom of the box under the continuous driving of gravity and water inflow, finally falls into the sand collecting groove and is taken away by the rotating spiral sheets.
Preferably, the screen 5 is wavy. The small amount of scum entering the tank with the incoming water floats under the screen due to its lower density. The wavy filter screen makes the contact of scum and the filter screen become line contact or point contact instead of surface contact, so that the scum is not easy to adhere to the lower surface of the filter screen to block the holes of the filter screen, and meanwhile, the scum cannot pass through the filter screen to be discharged from the water outlet 8, thereby improving the separation efficiency of the sand-water separator and effectively improving the quality of supernatant fluid.
Preferably, a cover plate is arranged on the notch of the sand collecting groove 3 positioned at the middle upper part in the water tank 4. On the one hand, the interference of the fluid in the water tank on sand grains in the sand collecting tank 3 is reduced, and on the other hand, the sand grains which are freely precipitated at the upper part of the water tank can slide downwards into the lower half section of the sand collecting tank.
The working process of the high-efficiency spiral sand-water separator of the embodiment is as follows:
the sand-water mixed solution in the sedimentation tank falls into the buffer cavity of the buffer piece 7 through the water inlet pipe 6, the mixed solution is decomposed into a plurality of small water flows through the water outlet holes, the mixed solution flows into the water tank through the water outlet holes, the downward impact force of the water flows is reduced, the interference to sand sediment at the bottom of the water tank is reduced, and sand floating is prevented. Meanwhile, water flows into the water tank from the holes on the side wall and the bottom of the buffer piece, so that the coverage area of the falling water flow is increased, and the floating of sand grains is further prevented.
The sand grains in the mixed liquid in the water tank 4 move downwards under the action of gravity, when falling into the sand collecting groove 3, the sand grains are driven by the spiral piece 2 to move obliquely upwards, and when reaching the discharge hole 9, the sand grains fall into the sand container.
Part of sand grains in the water tank move upwards along with the supernatant liquid, and when the sand grains ascend to the lower surface of the filter screen 5, the filter screen filters the mixed liquid again, and filtered supernatant liquid flows out from the water outlet 8. And the sand particles with the particle size larger than the diameter of the holes of the filter screen are trapped, and move towards the bottom of the tank under the continuous driving of gravity and water inflow, and continuously fall into the sand collecting tank 3 to be carried away by the rotating spiral piece 2.
A small amount of scum with smaller density entering the water tank floats below the wavy filter screen, and the scum can not block the holes of the filter screen and can not pass through the filter screen to be discharged from the water outlet 8, so that the separation efficiency of the sand-water separator is improved, and the quality of supernatant is effectively improved. When a part of scum in the water tank moves to one side of the sand collecting groove 3 under the deflection of the inflow water, the scum moves upwards under the drive of the rotating spiral sheet 2 until being discharged from the discharge hole 9.
The operation time of the equipment is comprehensively considered according to the content of the scum in the mixed liquor, the cross-sectional area of the sand-water separator, the amount of the scum discharged and the like. When the scum in the equipment needs to be cleaned, water inflow is stopped, sewage in the box body is discharged, the scum in the box body falls into the sand collecting groove 3, and all the scum is discharged by the rotating spiral piece. And then re-feeding water, and carrying out a sand-water separation process.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the specific embodiments described above, and that the above specific embodiments and descriptions are provided for further illustration of the principles of the present utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. The efficient spiral sand-water separator is characterized by comprising a water tank (4), a sand collecting groove (3), spiral sheets (2) and a driving piece (1), wherein the water tank (4) is obliquely arranged at the inner bottom, the sand collecting groove (3) is arranged in the water tank (4) and is obliquely paved along the bottom of the water tank (4), and the higher end of the sand collecting groove (3) extends out of the water tank; the spiral sheet (2) is arranged in the sand collecting groove (3), and one end of the spiral sheet (2) is in transmission connection with the driving piece (1); a water inlet pipe (6) is arranged at the top end of the water tank (4), and a water outlet (8) is arranged on the side wall of the upper part of the water tank (4); the water tank also comprises a buffer piece (7), wherein the buffer piece (7) is arranged at the upper part in the water tank and is positioned below the water outlet end of the water inlet pipe (6); the buffer piece (7) comprises a chassis and side walls, the side walls are arranged along the periphery of the chassis, and the side walls and the chassis form a buffer cavity with an upward opening; water outlets are uniformly distributed on the bottom plate and the side wall of the buffer piece.
2. The high efficiency spiral grit-water separator of claim 1 wherein the chassis is rectangular or circular.
3. A high efficiency spiral sand-water separator according to claim 1, characterized in that the height of the water outlet end of the water inlet pipe (6) is lower than the height of the water outlet (8).
4. A high efficiency spiral sand-water separator as claimed in claim 1, characterized in that the distance between the buffer chamber opening of the buffer member (7) and the water outlet end of the water inlet pipe (6) in the height direction is 20-150 mm.
5. A high efficiency spiral sand-water separator as claimed in claim 3, further comprising a filter screen (5), the filter screen (5) being arranged at the upper part in the water tank, the height of the filter screen being between the height of the water outlet and the height of the water outlet end of the water inlet pipe.
6. A high efficiency spiral sand-water separator as claimed in claim 5, characterized in that the diameter of the holes of the filter screen (5) is 0.15-0.20 mm.
7. A high efficiency spiral grit-water separator as in claim 5 wherein said screen (5) is wave-shaped.
8. The efficient spiral sand-water separator according to claim 1, wherein the sand collecting tank (3) is of a U-shaped structure, and a cover plate is arranged on a notch of the sand collecting tank (3) positioned at the middle upper part in the water tank (4).
9. The efficient spiral sand-water separator according to claim 1, wherein a discharge port (9) is arranged at the bottom of the higher end of the sand collecting groove (3), and the height of the discharge port (9) is higher than that of the top end of the water tank.
10. A high efficiency spiral sand-water separator according to claim 1, characterized in that the inclination angle of the sand collection trough (3) is 20-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320943658.0U CN219879320U (en) | 2023-04-24 | 2023-04-24 | Efficient spiral sand-water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320943658.0U CN219879320U (en) | 2023-04-24 | 2023-04-24 | Efficient spiral sand-water separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219879320U true CN219879320U (en) | 2023-10-24 |
Family
ID=88408085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320943658.0U Active CN219879320U (en) | 2023-04-24 | 2023-04-24 | Efficient spiral sand-water separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219879320U (en) |
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2023
- 2023-04-24 CN CN202320943658.0U patent/CN219879320U/en active Active
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