CN220443257U - Filter tank back flush anti-running filter material U-shaped weir plate mechanism - Google Patents
Filter tank back flush anti-running filter material U-shaped weir plate mechanism Download PDFInfo
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- CN220443257U CN220443257U CN202321187860.1U CN202321187860U CN220443257U CN 220443257 U CN220443257 U CN 220443257U CN 202321187860 U CN202321187860 U CN 202321187860U CN 220443257 U CN220443257 U CN 220443257U
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- filter
- filter tank
- weir plate
- baffle
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- 239000000463 material Substances 0.000 title claims abstract description 88
- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000001914 filtration Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 abstract description 35
- 238000011010 flushing procedure Methods 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a filter tank back flushing anti-running filter material U-shaped weir plate mechanism, which comprises a U-shaped weir plate arranged in a filter tank, wherein filter material layers are stacked and placed at the bottom of the filter tank, the U-shaped weir plate is positioned right above the filter material layers, the filter tank comprises a concrete weir, and a water outlet weir is arranged at a water outlet of the concrete weir. According to the embodiment of the utility model, the U-shaped weir plate mechanism of the filter tank backwash anti-running filter material is provided with the U-shaped weir plate, and the most main power source for the upward movement of the escaping filter material is the vertical upward air flow during air backwash, so that the upward air flow is eliminated after the escaping filter material passes through the left opening baffle of the U-shaped weir plate, the escaping filter material can be settled due to self gravity when flowing horizontally along with wastewater, the wastewater is settled to a U-shaped area before passing through the right opening baffle, and the wastewater is settled to the bottom of the filter tank through the recycling material opening, so that the filter tank anti-running filter material is effectively realized, the structure is simple and reliable, the cost is low, and the filter tank anti-running filter material has a better application prospect.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a U-shaped weir plate mechanism of a filter tank backwash anti-running filter material.
Background
Common filter systems such as V-shaped filter, biological aerated filter, denitrification deep bed filter and the like are widely applied to tap water production, municipal sewage treatment or industrial wastewater treatment, and can be provided with different types of filter materials: such as quartz sand, ceramsite and the like of heavy filter materials; anthracite, activated carbon, etc. of the light filter material. The heavy filter material and the light filter material adopt the air-water backflushing technology, namely, the air backflushing is firstly carried out to loosen the filter material layer, then the air and the water are simultaneously backflushed to wash out the particles accumulated in the filter material gap and ascend along with the water flow, and finally, the water backflushing is carried out to discharge the washed particles along with the wastewater.
The heavy filter material adopts a micro-expansion air-water backflushing technology, and generally has relatively high air backflushing strength and relatively low water backflushing strength. The lightweight filter material adopts an expansive air-water backflushing technology, and generally has lower air backflushing strength and higher water backflushing strength.
The filtering material is removed by back flushing of the air and water in the filtering tank, which is an unavoidable problem in the back flushing process of the air and water in the current filtering tank system, can cause the thickness reduction of the filtering material layer in the filtering tank to influence the water quality of the water, and a part of the filtering material escaping along with the wastewater can enter the wastewater tank along with the wastewater, so that the volume of the wastewater tank is reduced, the normal application is influenced, and the filtering material is difficult to clean in the wastewater tank. Another part can be deposited on the surface of the waste water discharge canal and the concrete weir, which affects the visual sense for the water works.
In the clear water backflushing process, the condition that the filter material particles escape the filter material layer to ascend along with the wastewater comprises:
when the water is independently backflushed, the light filter material is in a semi-suspension state, and the filter material cannot run as long as the wastewater drainage weir is high enough; the heavy filter material shows micro expansion, basically does not move, and has no problem of running filter material.
When the air is back-flushed alone, the air flow speed is faster, and the air passes through the filter material layer with larger turbulence, so that a small amount of filter material can be carried to escape from the filter material layer to enter the water area above the filter material layer and be flushed towards the surface of the water area above the filter material. The water level in the pool is lifted by 200-300mm by air backflushing, and the water level in the pool is lifted to turn over a water outlet weir to drain water, so that filter materials are discharged from the filter pool.
When air and water are backflushed simultaneously, turbulence formed by the air still enables a small amount of filter material to escape into a water area above the filter material layer, and the filter material is carried along with continuous rising of water level in the tank in the process of discharging wastewater.
The current common method for preventing the filter material from running out of the filter tank is a dewatering level air-water backflushing technology, the water level in the filter tank is firstly reduced to a certain height before the air-water backflushing of the filter tank is started, the air backflushing process and the air-water backflushing process are carried out simultaneously, the water level in the filter tank is below a water outlet weir, and no wastewater drainage is carried out so as to prevent the filter material from running out of the filter tank. However, the common filter is not realized due to a plurality of reasons, such as too low water outlet weir, so that the precipitation level is not realized. The water level lowering air-water backflushing needs to increase the final water backflushing strength, so that the waste water discharge efficiency is improved, and the water pump is preferably selected to have larger flow.
The filter material running out of the filter tank in the air-water backflushing process of the filter tank system is a common fault of the operation of the filter tank system, so that a backflushing mechanism capable of overcoming the filter material running out of the filter tank is currently in urgent need.
Disclosure of Invention
In order to overcome the defects of related products in the prior art, the utility model provides a U-shaped weir plate mechanism of a backwash anti-running filter material of a filter tank, which solves the problem of running the filter material of the filter tank.
The utility model provides a filter tank back flushing anti-running filter material U-shaped weir plate mechanism, which comprises: the filter tank comprises a U-shaped weir plate arranged in the filter tank, wherein filter material layers are stacked at the bottom of the filter tank, the U-shaped weir plate is positioned right above the filter material layers, the filter tank comprises a concrete weir, and a water outlet weir is arranged at a water outlet of the concrete weir; the U-shaped weir plate comprises a left perforated baffle plate and a right perforated baffle plate which are vertically arranged in parallel, bottom folded plates are arranged at the bottoms of the left perforated baffle plate and the right perforated baffle plate, two groups of bottom folded plates are oppositely inclined and staggered to form a U-shaped area, the left perforated baffle plate, the right perforated baffle plate and the corresponding bottom folded plates are matched to form a U-shaped weir plate structure, and gaps exist between the two groups of bottom folded plates, so that a recovery port extending downwards is formed; the right side trompil baffle interval sets up one side of water outlet weir, the left side trompil baffle sets up the opposite side at the right side trompil baffle, the left side trompil baffle is provided with one row of low-order hole, be provided with one row of high-order hole on the right side trompil baffle, the top height of high-order hole does not exceed the top height of water outlet weir, the top height of low-order hole does not exceed the top height of high-order hole.
In certain embodiments of the utility model, the height of the left side aperture stop is greater than the height of the right side aperture stop.
In some embodiments of the utility model, the low-level holes and the high-level holes are staggered in horizontal distance.
Compared with the prior art, the utility model has the following advantages:
according to the embodiment of the utility model, the U-shaped weir plate mechanism of the filter tank backwash anti-running filter material is provided with the U-shaped weir plate, and the most main power source for the upward movement of the escaping filter material is the vertical upward air flow during air backwash, so that the upward air flow is eliminated after the escaping filter material passes through the left opening baffle of the U-shaped weir plate, the escaping filter material can be settled due to self gravity when flowing horizontally along with wastewater, the wastewater is settled to a U-shaped area before passing through the right opening baffle, and the wastewater is settled to the bottom of the filter tank through the recycling material opening, so that the filter tank anti-running filter material is effectively realized, the structure is simple and reliable, the cost is low, and the filter tank anti-running filter material has a better application prospect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a U-shaped weir plate mechanism of a backwash anti-running filter material of a filter tank;
FIG. 2 is a schematic diagram of the structure of the air-water back flushing air and water flow patterns;
FIG. 3 is a schematic diagram of the structure of the filter tank backwash anti-run filter material U-shaped weir plate air-water flow state and filter material fall-back.
Reference numerals illustrate:
1. a filter tank; 2. a concrete weir; 3. a water outlet weir; 4. a filter material layer; 5. a clear water zone; 6. ascending bubbles; 7. an upstream water flow; 8. a horizontal flow of water; 9. a falling flowing water stream; 10. tilting the fluid water flow; 11. a low-level hole; 12. high-order holes; 13. the filter material is fallen back; 14. a recycling material port; 15. a U-shaped area; 16. a bottom flap; 17. a left side perforated baffle; 18. the right side is provided with a baffle plate.
Detailed Description
In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present utility model with reference to the accompanying drawings. It is apparent that the described embodiments are only some embodiments of the utility model, but not all embodiments, and that the preferred embodiments of the utility model are shown in the drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein, but rather is provided to provide a more thorough understanding of the present disclosure.
Referring to fig. 1-3, the filter tank back flushing anti-running filter material U-shaped weir plate mechanism comprises a U-shaped weir plate arranged in a filter tank 1, wherein a filter material layer 4 is stacked and placed at the bottom of the filter tank 1, the U-shaped weir plate is positioned right above the filter material layer 4, the filter tank 1 comprises a concrete weir 2, and a water outlet weir 3 is arranged at a water outlet of the concrete weir 2; the U-shaped weir plate comprises a left perforated baffle 17 and a right perforated baffle 18 which are vertically arranged in parallel, bottom flaps 16 are arranged at the bottoms of the left perforated baffle 17 and the right perforated baffle 18, two groups of bottom flaps 16 are oppositely and obliquely arranged in a staggered manner to form a U-shaped area 15, the left perforated baffle 17, the right perforated baffle 18 and the corresponding bottom flaps 16 are matched to form a U-shaped weir plate structure, and gaps exist between the two groups of bottom flaps 16 to form a recovery material opening 14 which extends downwards; the right perforated baffle 18 is arranged at intervals on one side of the water outlet weir 3 (i.e. near the water outlet), the left perforated baffle 17 is arranged on the other side of the right perforated baffle 18 (i.e. far from the water outlet), the left perforated baffle 17 is provided with a row of low-level holes 11, the right perforated baffle 18 is provided with a row of high-level holes 12, the top height of the high-level holes 12 does not exceed the top height of the water outlet weir 3, the top height of the low-level holes 11 does not exceed the top height of the high-level holes 12, the right perforated baffle 18 is used for uniformly distributing water and uniformly discharging wastewater when the water in the filter tank 1 is in backflushing, and the wastewater is turned over the right perforated baffle 18 to finish wastewater discharge; the horizontally spaced high-level holes 12 on the right perforated baffle 18 are used to change the horizontal flow pattern of the wastewater passing through the left perforated baffle 17 and falling into the U-shaped area 15, and then continuing to flow to the high-level holes 12 and passing through the right perforated baffle 18.
In the embodiment of the present utility model, the height of the left perforated baffle 17 is greater than that of the right perforated baffle 18, so that the clear water area 5 above the filter material layer 4 can be buffered to a certain extent; a drop flow zone, i.e., U-shaped zone 15, is constructed before the wastewater passes through right apertured baffle 18. The wastewater falls and flows in the area, so that the filter material can be conveniently escaped to settle; the left perforated baffle 17 is horizontally provided with low-level holes 11 at intervals, the top of the low-level holes 11 is leveled with or slightly lower than the centers of the high-level holes 12 on the right perforated baffle 18, and the low-level holes 11 and the high-level holes 12 are distributed in staggered manner on the horizontal distance, namely, the centers of the low-level holes 11 are positioned between the centers of two adjacent high-level holes 12; for changing the flow state of the upward bubbles 6 carried by the wastewater when the wastewater passes through the left-side perforated baffle 17, thereby reducing or lowering the power of escaping filter materials.
An obliquely downward bottom folded plate 16 is arranged below the right opening baffle 18 and the left opening baffle 17 and used for preventing upward air from entering the U-shaped area 15, waste water falls into the U-shaped area 15, escaped filter materials settle in the U-shaped area 15, and fall back into the pool of the filter tank 1 through an obliquely downward recycling material opening 14.
The escape filter material ascends along with the vertically upward air flow and the backwash wastewater, when the wastewater level of the upward water flow 7 ascends to the low-level holes 11 arranged on the left perforated baffle 17, the vertically upward air flow and the wastewater flow state are changed into horizontal flow state (namely, the horizontally flowing water flow 8), the escape filter material loses the upward power and falls to the U-shaped area 15 along with the wastewater (namely, the falling flowing water flow 9) through the low-level holes 11; when the liquid level of the U-shaped area 15 rises to the high-level holes 12 arranged on the right-side perforated baffle 18, as the low-level holes 11 and the high-level holes 12 have certain intervals in the horizontal direction and the vertical direction, the horizontal flow state of the wastewater is changed into the inclined flow state (namely, the inclined flow state water flow 10) with a certain angle in the horizontal direction and the vertical direction, the wastewater discharge time of the U-shaped area 15 is prolonged, and the escape filter material (namely, the falling filter material 13) falling to the U-shaped area 15 has more sufficient time to fall back into the pool of the filter tank 1 through the recovery material opening 14.
In the embodiment of the present utility model, the U-shaped weir plate is fixed in the filter tank 1 by an external supporting structure, and may be fixed by a conventional manner such as hooking, clamping or screwing, which is not limited in the embodiment of the present utility model.
According to the filter tank back flushing anti-running filter material U-shaped weir plate mechanism, the U-shaped weir plate is arranged, and as the main upward power source of the escaping filter material is the vertical upward air flow during air back flushing, the escaping filter material eliminates the upward air flow after passing through the left side perforated baffle 17 of the U-shaped weir plate, the escaping filter material can be settled due to self gravity when flowing horizontally along with wastewater, and the wastewater is settled to the U-shaped area 15 before passing through the right side perforated baffle 18, and is settled to the bottom of the filter tank 1 through the recycling port 14, so that the filter tank 1 anti-running filter material is effectively realized, the structure is simple, the reliability is low, and the filter tank has a better application prospect.
What is not described in detail in this specification is prior art known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the present utility model may be modified or equivalents substituted for some of the features thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.
Claims (3)
1. The utility model provides a filtering pond back flush anti-running filter material U-shaped weir plate mechanism which characterized in that includes: the filter comprises a U-shaped weir plate arranged in a filter tank (1), wherein a filter material layer (4) is stacked at the bottom of the filter tank (1), the U-shaped weir plate is positioned right above the filter material layer (4), the filter tank (1) comprises a concrete weir (2), and a water outlet weir (3) is arranged at a water outlet of the concrete weir (2); the U-shaped weir plate comprises a left perforated baffle (17) and a right perforated baffle (18) which are vertically arranged in parallel, bottom folded plates (16) are arranged at the bottoms of the left perforated baffle (17) and the right perforated baffle (18), two groups of the bottom folded plates (16) are obliquely arranged in opposite directions in a staggered manner to form a U-shaped region (15), the left perforated baffle (17), the right perforated baffle (18) and the corresponding bottom folded plates (16) are matched to form a U-shaped weir plate structure, and gaps exist between the two groups of the bottom folded plates (16), so that a recovery material opening (14) extending downwards is formed; wherein, right side trompil baffle (18) interval sets up one side of play weir (3), left side trompil baffle (17) set up the opposite side at right side trompil baffle (18), left side trompil baffle (17) are provided with one row of low level hole (11), be provided with one row of high level hole (12) on right side trompil baffle (18), the top height of high level hole (12) is not more than the top height of play weir (3), the top height of low level hole (11) is not more than the top height of high level hole (12).
2. The filter tank backwash anti-running filter material U-shaped weir plate mechanism according to claim 1, wherein: the left side opening baffle (17) has a large height and (3) opening the height of the baffle plate (18) at the right side.
3. The filter tank backwash anti-running filter material U-shaped weir plate mechanism according to claim 1, wherein: the low-level holes (11) and the high-level holes (12) are distributed in a staggered manner on the horizontal distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321187860.1U CN220443257U (en) | 2023-05-17 | 2023-05-17 | Filter tank back flush anti-running filter material U-shaped weir plate mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321187860.1U CN220443257U (en) | 2023-05-17 | 2023-05-17 | Filter tank back flush anti-running filter material U-shaped weir plate mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220443257U true CN220443257U (en) | 2024-02-06 |
Family
ID=89740492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321187860.1U Active CN220443257U (en) | 2023-05-17 | 2023-05-17 | Filter tank back flush anti-running filter material U-shaped weir plate mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220443257U (en) |
-
2023
- 2023-05-17 CN CN202321187860.1U patent/CN220443257U/en active Active
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