CN221107097U - Turbulent device for flocculation area of high-density sedimentation tank - Google Patents
Turbulent device for flocculation area of high-density sedimentation tank Download PDFInfo
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- CN221107097U CN221107097U CN202322807580.2U CN202322807580U CN221107097U CN 221107097 U CN221107097 U CN 221107097U CN 202322807580 U CN202322807580 U CN 202322807580U CN 221107097 U CN221107097 U CN 221107097U
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- flocculation
- sedimentation tank
- thick bamboo
- flocculation zone
- density sedimentation
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- 238000005189 flocculation Methods 0.000 title claims abstract description 70
- 230000016615 flocculation Effects 0.000 title claims abstract description 70
- 238000004062 sedimentation Methods 0.000 title claims abstract description 27
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 18
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 18
- 241001330002 Bambuseae Species 0.000 claims abstract description 18
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 18
- 239000011425 bamboo Substances 0.000 claims abstract description 18
- 210000005056 cell body Anatomy 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003814 drug Substances 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 13
- 229940037003 alum Drugs 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model belongs to the technical field of flocculation precipitation, and particularly relates to a turbulence device for a flocculation zone of a high-density sedimentation tank. The technical proposal is as follows: a turbulent flow device for high density sedimentation tank flocculation zone, includes flocculation zone cell body, and the inlet tube is stretched into to the bottom of flocculation zone cell body, and the inlet tube upside sets up a central section of thick bamboo, and a central section of thick bamboo is fixed in the flocculation zone cell body, is provided with annular medicine adding pipe in the central section of thick bamboo, is provided with annular guide plate in the upper segment of a central section of thick bamboo, and there is circular guide plate at a central section of thick bamboo top through leg joint, and the agitator that stretches into in the central section of thick bamboo is installed to the flocculation zone cell body. The utility model provides a turbulent flow device for a flocculation zone of a high-density sedimentation tank, which reduces a vortex dead zone and enhances a mixing effect.
Description
Technical Field
The utility model belongs to the technical field of flocculation precipitation, and particularly relates to a turbulence device for a flocculation zone of a high-density sedimentation tank.
Background
A high-density sedimentation tank (hereinafter referred to as a high-density tank) is a device for integrating and optimizing various water treatment technologies, and is widely used in the field of sewage treatment. Compared with the traditional sedimentation tank, the high-density tank has larger water flow in unit time and unit area, and can generate compact and uniform flocs; the tank body has compact structure, the settling rate of the flocs is higher, and meanwhile, substances such as micro sand and the like can be added in the treatment process to thicken the flocs, and the sludge generated by the settling can be directly dehydrated by a dehydration device. In addition, the high-density tank can also directly treat raw water with different flow rates and components, so that the steps of material separation and the like are omitted, and the investment cost and the treatment time are saved. However, in the practical engineering application, if the high-density sedimentation tank is not designed well, the speed gradient of a flocculation area is not obvious, and the mixing reaction effect of the medicament is not good; the flocculation area has larger vortex, influences flocculation effect, causes the waste of high density pool volume scheduling problem.
The stirring flocculation area is an important area in the flocculation reaction of the high-density pond, the hydrolysis of the flocculant, the collision and net capturing of the floccule particles and the flocculant in the water are completed in the area, and large alum flowers are further formed in the plug flow flocculation area to perform good mud-water separation. Wherein, the inside of the central cylinder is the area with the most intense speed change and energy transmission, which is the design core of the stirring flocculation area.
As shown in fig. 5, the conventional design at present adopts a straight cylinder structure, and no flow guiding device is provided, so that the liquid circulated inside and outside the central cylinder cannot reach a good speed gradient, and large vortex is easily generated to cause a vortex dead zone, so that not only is part of reaction areas wasted, but also the flocculation reaction effect is not ideal, and the effluent quality of the subsequent sedimentation tank cannot be stably ensured for a long time.
Disclosure of utility model
In order to solve the problems in the prior art, the utility model aims to provide a turbulence device for a flocculation area of a high-density sedimentation tank, which reduces a vortex dead zone and enhances a mixing effect.
The technical scheme adopted by the utility model is as follows:
A turbulent flow device for high density sedimentation tank flocculation zone, includes flocculation zone cell body, and the inlet tube is stretched into to the bottom of flocculation zone cell body, and the inlet tube upside sets up a central section of thick bamboo, and a central section of thick bamboo is fixed in the flocculation zone cell body, is provided with annular medicine adding pipe in the central section of thick bamboo, is provided with annular guide plate in the upper segment of a central section of thick bamboo, and there is circular guide plate at a central section of thick bamboo top through leg joint, and the agitator that stretches into in the central section of thick bamboo is installed to the flocculation zone cell body.
The utility model skillfully combines the annular guide plate in the central cylinder of the flocculation area of the high-density tank, the circular guide plate above the central cylinder and the annular dosing pipe, thereby improving the mixing effect of the medicament and playing the role of guiding the sewage in the central cylinder. The annular guide plate is arranged in the central cylinder, and the circular guide plate is arranged above the central cylinder, so that the volume of the vortex dead zone in the reaction zone is reduced, the speed gradient outside the central cylinder can be enhanced, the volume of the flocculation zone of the high-density pool is utilized to the maximum extent, and the waste of the volume in the pool is reduced. The volume utilization rate of the high-density pool flocculation area in the structure after optimization can reach more than 90%, and the volume of vortex in the pool can be reduced by more than 60%.
As a preferable scheme of the utility model, the bottom of the central cylinder is a bell mouth, and the annular dosing tube is arranged on a straight tube section above the bell mouth of the central cylinder.
As a preferable mode of the utility model, the conical angle of the bell mouth is 45-60 degrees.
As a preferable scheme of the utility model, the length of the water inlet pipe extending into the flocculation area tank body is 0-200 mm.
As a preferable scheme of the utility model, the distance between the central cylinder and the bottom of the flocculation area tank body is 300-500 mm.
As a preferable scheme of the utility model, the annular deflector is positioned at 1/3-2/5 of the center cylinder from top to bottom.
As a preferable scheme of the utility model, the area of the annular guide plate covering the central cylinder is 10% -30%.
As a preferable mode of the utility model, the diameter of the circular guide plate is 1.1-1.3 times of the diameter of the central cylinder.
As a preferable scheme of the utility model, the bracket comprises 3-6 flat steels, and the height of the bracket is 100-300 mm.
As a preferable scheme of the utility model, the bottom of the annular dosing tube is uniformly provided with dosing holes with the diameter of 3-6 mm, and the number of the dosing holes is not less than 20.
The beneficial effects of the utility model are as follows:
The utility model skillfully combines the annular guide plate in the central cylinder of the flocculation area of the high-density tank, the circular guide plate above the central cylinder and the annular dosing pipe, thereby improving the mixing effect of the medicament and playing the role of guiding the sewage in the central cylinder. The annular guide plate is arranged in the central cylinder, and the circular guide plate is arranged above the central cylinder, so that the volume of the vortex dead zone in the reaction zone is reduced, the speed gradient outside the central cylinder can be enhanced, the volume of the flocculation zone of the high-density pool is utilized to the maximum extent, and the waste of the volume in the pool is reduced. The volume utilization rate of the high-density pool flocculation area in the structure after optimization can reach more than 90%, and the volume of vortex in the pool can be reduced by more than 60%.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a circular baffle;
FIG. 3 is a schematic view of the structure of an annular deflector;
FIG. 4 is a schematic view of the structure of the annular dosing tube;
fig. 5 is a schematic diagram of a conventional high-density sedimentation tank.
In the figure: 1-a flocculation area tank body; 2-a water inlet pipe; 3-a central cylinder; 4-horn mouth; 5-a circular deflector; 6-an annular deflector; 7-an annular dosing tube; 8-a stirrer; 9-bracket.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
As shown in fig. 1 to 4, the turbulence device for the flocculation area of the high-density sedimentation tank in this embodiment comprises a flocculation area tank body 1, wherein the bottom of the flocculation area tank body 1 extends into a water inlet pipe 2, a central cylinder 3 is arranged on the upper side of the water inlet pipe 2, the central cylinder 3 is fixed in the flocculation area tank body 1, an annular dosing pipe 7 is arranged in the central cylinder 3, an annular guide plate 6 is arranged in the upper section of the central cylinder 3, the top of the central cylinder 3 is connected with a circular guide plate 5 through a bracket 9, and a stirrer 8 extending into the central cylinder 3 is arranged in the flocculation area tank body 1. The bottom of the central cylinder 3 is provided with a bell mouth 4, and an annular dosing tube 7 is arranged at a straight tube section above the bell mouth 4 of the central cylinder 3.
The reaction flow of the utility model is that wastewater firstly enters a reaction tank and PAC to be mixed for adsorption bridging reaction and then enters a flocculation stage, the wastewater enters a flocculation zone tank body 1 from the bottom of the reaction tank to be mixed with PAM and sludge reflowed by a pre-sedimentation concentration zone, and energy is provided by stirring and rotation of a stirrer 8 in a central cylinder 3 so as to realize rapid flocculation reaction and complete lifting and internal circulation. The slow flocculation reaction is carried out outside the central cylinder 3, so that energy dispersion is facilitated, large and compact alum flowers are formed, the alum flowers enter a subsequent pre-sedimentation concentration zone in a plug flow mode, a large amount of alum flowers are settled at the bottom of the pre-sedimentation concentration zone, and part of sludge flows back to the flocculation zone through a sludge circulating pump to promote flocculation effect. The waste water flows upwards to intercept the residual alum blossom through the inclined tube, and the clear water enters the water outlet pipe to enter the next treatment unit after being collected by the water collecting tank.
Wherein the conical angle of the bell mouth 4 is 45-60 degrees.
The length of the water inlet pipe 2 extending into the flocculation area tank body 1 is 0-200 mm.
The distance between the central cylinder 3 and the bottom of the flocculation area tank body 1 is 300-500 mm.
The annular guide plate 6 is positioned at 1/3-2/5 of the center cylinder 3 from top to bottom.
The area of the annular guide plate 6 covering the central cylinder 3 is 10% -30%.
The diameter of the circular guide plate 5 is 1.1-1.3 times of the diameter of the central cylinder 3.
The support 9 comprises 3-6 flat steels, and the height of the support 9 is 100-300 mm.
The bottom of the annular dosing tube 7 is uniformly provided with dosing holes with the diameter of 3-6 mm, and the number of the dosing holes is not less than 20.
The utility model skillfully combines the annular guide plate 6 in the central cylinder 3 of the flocculation area of the high-density tank, the circular guide plate 5 above the central cylinder 3 and the annular dosing pipe 7, thereby not only improving the medicament mixing effect, but also playing the role of guiding sewage in the central cylinder 3. The annular guide plate 6 is arranged in the central cylinder 3, and the circular guide plate 5 is arranged above the central cylinder 3, so that the volume of a vortex dead zone in the reaction zone is reduced, the speed gradient outside the central cylinder 3 can be enhanced, the volume of a flocculation zone of a high-density pool is utilized to the maximum, and the waste of the volume in the pool is reduced. The volume utilization rate of the high-density pool flocculation area in the structure after optimization can reach more than 90%, and the volume of vortex in the pool can be reduced by more than 60%.
Examples:
Taking a wastewater amount of 10000m 3/d as an example, removing suspended matters in the wastewater by a high-density pool, wherein the high-density pool adopts the turbulence device provided by the utility model.
As shown in fig. 1, the turbulence device consists of a flocculation area tank body 1, a water inlet pipe 2, a central cylinder 3, a horn mouth 4, a circular guide plate 5, an annular guide plate 6, an annular dosing pipe 7, a stirrer 8 and a bracket 9. In the embodiment, a bell mouth 4 with the angle of 60 degrees is arranged to be connected with the lower edge of a cylindrical central cylinder 3 with the diameter of 1.8m, 6 flat steel brackets 9 with the height of 300mm are arranged above the upper edge of the central cylinder 3 and are welded and fixed with a circular guide plate 5 with the diameter of 2.0m, an annular guide plate 6 with the width of 200mm is arranged at the position, which is away from the upper edge 1m, of the inner part of the central cylinder 3, an annular dosing tube 7 with the diameter of 25mm is arranged at the upper edge of the bell mouth 4 and is closely attached to the inner wall of the central cylinder 3, 40 circular dosing holes with the diameter of 5mm are uniformly distributed at the bottom of the dosing tube, the lower edge of the central cylinder 3 is away from the bottom of a flocculation zone by 500mm, and a water inlet pipe 2 with the diameter of 150mm penetrates into the position, which is away from the bottom of a flocculation zone pool body 1, of the lower edge of the bell mouth 4 of the central cylinder 3 by 100 mm.
The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model.
Claims (10)
1. A turbulent device for a flocculation zone of a high-density sedimentation tank, characterized in that: including flocculation area cell body (1), the bottom of flocculation area cell body (1) stretches into inlet tube (2), and inlet tube (2) upside sets up central section of thick bamboo (3), and in central section of thick bamboo (3) were fixed in flocculation area cell body (1), be provided with annular dosing tube (7) in central section of thick bamboo (3), be provided with annular guide plate (6) in the upper segment of central section of thick bamboo (3), be connected with circular guide plate (5) at central section of thick bamboo (3) top through support (9), agitator (8) in stretching into central section of thick bamboo (3) are installed in flocculation area cell body (1).
2. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the bottom of the central cylinder (3) is provided with a bell mouth (4), and the annular dosing tube (7) is arranged at a straight tube section above the bell mouth (4) of the central cylinder (3).
3. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 2, wherein: the conical angle of the horn mouth (4) is 45-60 degrees.
4. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the length of the water inlet pipe (2) extending into the flocculation area tank body (1) is 0-200 mm.
5. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the distance between the central cylinder (3) and the bottom of the flocculation area tank body (1) is 300-500 mm.
6. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the annular guide plate (6) is positioned at 1/3-2/5 of the center cylinder (3) from top to bottom.
7. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the area of the annular guide plate (6) covering the central cylinder (3) is 10% -30%.
8. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the diameter of the circular guide plate (5) is 1.1-1.3 times of the diameter of the central cylinder (3).
9. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the support (9) comprises 3-6 flat steels, and the height of the support (9) is 100-300 mm.
10. A turbulator for a flocculation zone of a high density sedimentation tank as claimed in claim 1, wherein: the bottom of the annular dosing tube (7) is uniformly provided with dosing holes with the diameter of 3-6 mm, and the number of the dosing holes is not less than 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322807580.2U CN221107097U (en) | 2023-10-18 | 2023-10-18 | Turbulent device for flocculation area of high-density sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322807580.2U CN221107097U (en) | 2023-10-18 | 2023-10-18 | Turbulent device for flocculation area of high-density sedimentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221107097U true CN221107097U (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322807580.2U Active CN221107097U (en) | 2023-10-18 | 2023-10-18 | Turbulent device for flocculation area of high-density sedimentation tank |
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| Country | Link |
|---|---|
| CN (1) | CN221107097U (en) |
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- 2023-10-18 CN CN202322807580.2U patent/CN221107097U/en active Active
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