CN206767746U - A kind of biofilter provided with back purge system - Google Patents
A kind of biofilter provided with back purge system Download PDFInfo
- Publication number
- CN206767746U CN206767746U CN201720489230.8U CN201720489230U CN206767746U CN 206767746 U CN206767746 U CN 206767746U CN 201720489230 U CN201720489230 U CN 201720489230U CN 206767746 U CN206767746 U CN 206767746U
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- biofilter
- backwash
- baffle plate
- discharge outlet
- drainage arrangement
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Abstract
A kind of biofilter provided with back purge system is the utility model is related to, the biofilter includes upper strata clear water zone and lower floor's filter material layer；Clear water zone top drain-side sets backwash effluent weir；Backwash discharge outlet and corresponding drainage arrangement are set on water outlet side pool wall below the backwash effluent weir, above filter material layer；Draining baffle plate is provided with drainage arrangement, the draining baffle plate is adjacent on pool wall and covers backwash discharge outlet, and draining baffle plate can lift in the case where hand gear drives or electric device drives, and realize closing or the opening of backwash discharge outlet.The utility model can clean up caused aging biomembrane and suspension in biofilter on the premise of backwash water water is not increased, and thoroughly discharge outside pond；The phenomenon that biofilter blocks, filtrate is hardened is reduced, avoids filtrate from too washing away and causes biofilm detachment, so as to improve the Biochemical Treatment of biofilter.
Description
Technical field
It the utility model is related to a kind of biofilter, more particularly to a kind of biofilter provided with back purge system.
Background technology
The method that biofilter generally use air purge, air water wash, washes is backwashed, with remove the biomembrane of aging and
Suspension in biofilter.A large amount of suspensions are flowed out by backwash effluent weir with backwash water outlet during backwash, above filter material layer
It is used to prevent that filtrate is rushed out outside pond during backwash provided with clear water zone, the clear water zone water surface is less than backwash effluent weir；But in actual motion
In, backwash terminates still have the sewage containing a large amount of suspensions not discharge in rear clear water zone, and a portion sewage is with biofilter
Water outlet enters subsequent treatment process, and another part is deposited on above filter material layer.Biofilter subsequent technique is generally provided with filtering
System, the water outlet after backwash, which enters filtration system, can increase its facility load.If it is deposited on after each backwash above filter material layer
Suspension it is excessive, can only be rinsed using a large amount of backwash waters, not only waste water resource and electric energy, while substantial amounts of backwash water
Biomembrane is washed away, easily causes biofilm detachment, influences Biochemical Treatment；Other backwash water cistern and waste discharge
Pond needs enough volumes and provides backwash water and receive backwash draining, can also increase one-time investment.
The content of the invention
The utility model provides a kind of backwashing water drainage arrangement of biofilter, can not increase backwash water water
On the premise of caused aging biomembrane and suspension in biofilter are cleaned up, and thoroughly discharge pond outside；Reduce biology
The phenomenon that filter tank blocks, filtrate is hardened, avoids filtrate from too washing away and causes biofilm detachment, so as to improve the biochemistry of biofilter
Treatment effect.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of backwashing water drainage arrangement of biofilter, the biofilter include upper strata clear water zone and lower floor's filtrate
Layer；Clear water zone top drain-side sets backwash effluent weir；Set on water outlet side pool wall below the backwash effluent weir, above filter material layer
Backwash discharge outlet and corresponding drainage arrangement；Draining baffle plate is provided with drainage arrangement, the draining baffle plate is adjacent on pool wall and covered
Lid backwash discharge outlet, draining baffle plate can lift in the case where hand gear drives or electric device drives, and realize backwash discharge outlet
Closing is opened.
When the biofilter is newly-built biofilter, backwash discharge outlet is along pool wall length to the strip backwash opened up
Discharge outlet, corresponding drainage arrangement are electric drainage device, and draining baffle plate realizes lifting action under the driving of electric device.
The height of the strip backwash discharge outlet is not less than 100mm, and its lower edge is apart from 200~300mm at the top of filter material layer.
The electric device is Electrohydraulic push rod；The both sides of draining baffle plate set Electrohydraulic push rod, and 2 Electrohydraulic push rod synchronizations respectively
Action.
Corresponded in the newly-built biofilter and vertically set slideway, draining on the pool wall of draining baffle plate one or both sides
Baffle plate one or both sides are slidably matched with slideway.
The biofilter be biofilter when, backwash discharge outlet be rectangle or circle backwash discharge outlet, it is right
The drainage arrangement answered is manual drainage device, and draining baffle plate realizes lifting action under the drive of hand gear.
The length of side or diameter of the rectangle or circular backwash discharge outlet are not less than 200mm, and its lower edge is apart from the top of filter material layer
200~300mm of portion.
The hand gear is hand hoisting bar, and the bottom of hand hoisting bar is fixedly connected with draining baffle plate；Draining baffle plate
It is slidably matched on the pool wall of both sides by expansion bolt ground way, both sides and the slideway of draining baffle plate.
The draining baffle plate is made using stainless-steel sheet.
Compared with prior art, the beneficial effects of the utility model are：
1) can be on the premise of backwash water water not be increased by caused aging biomembrane and suspension in biofilter
Clean up, and thoroughly discharge outside pond；
2) phenomenon that biofilter blocks, filtrate is hardened is reduced, avoids filtrate from too washing away and causes biofilm detachment, so as to
Improve the Biochemical Treatment of biofilter；
3) backwashing water water consumption is saved, operating cost is saved, does not increase backwash water cistern and waste discharge pool volume,
Reduce one-time investment.
Brief description of the drawings
Fig. 1 is a kind of (the electronic dress of front view one of the backwashing water drainage arrangement of biofilter described in the utility model
Put).
Fig. 2 is Fig. 1 top view.
Fig. 3 is a kind of (dress manually of front view two of the backwashing water drainage arrangement of biofilter described in the utility model
Put).
Fig. 4 is Fig. 3 top view.
In figure：1. the draining baffle plate of biofilter 2. filter material layer, 3. clear water zone 4. backwash discharge outlet, 5. Electrohydraulic push rod 6.
7. the hand hoisting bar of 8. backwash effluent weir of slideway 9.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As Figure 1-Figure 4, the backwashing water drainage arrangement of a kind of biofilter described in the utility model, the biological filter
Pond 1 includes upper strata clear water zone 3 and lower floor's filter material layer 2；The top drain-side of clear water zone 3 sets backwash effluent weir 8；The backwash water outlet
Backwash discharge outlet 4 and corresponding drainage arrangement are set on water outlet side pool wall above the lower section of weir 8, filter material layer 2；It is provided with drainage arrangement
Draining baffle plate 6, the draining baffle plate 6 are adjacent on pool wall and cover backwash discharge outlet 4, draining baffle plate 6 hand gear drive or
It can be lifted under electric device driving, realize closing or the opening of backwash discharge outlet 4.
As shown in Figure 1 and Figure 2, when the biofilter 1 is newly-built biofilter, backwash discharge outlet 4 be along pool wall length to
The strip backwash discharge outlet opened up, corresponding drainage arrangement are electric drainage device, driving of the draining baffle plate 6 in electric device
Under realize lifting action.
The height of the strip backwash discharge outlet is not less than 100mm, its lower edge apart from the top of filter material layer 2 200~
300mm。
The electric device is Electrohydraulic push rod 5；The both sides of draining baffle plate 6 set Electrohydraulic push rod 5, and 2 Electrohydraulic push rods 5 respectively
Synchronization action.
Corresponded in the newly-built biofilter and slideway 7 is vertically set on the pool wall of the one or both sides of draining baffle plate 6, arranged
The one or both sides of water baffle plate 6 are slidably matched with slideway 7.
As shown in Figure 3, Figure 4, the biofilter 1 be biofilter when, backwash discharge outlet 4 is rectangle or circle
Backwash discharge outlet, corresponding drainage arrangement is manual drainage device, and draining baffle plate 6 realizes lifting under the drive of hand gear
Action.
The length of side or diameter of the rectangle or circular backwash discharge outlet are not less than 200mm, and its lower edge is apart from the top of filter material layer 2
200~300mm of portion.
The hand gear is hand hoisting bar 9, and the bottom of hand hoisting bar 9 is fixedly connected with draining baffle plate 6；Draining is kept off
It is slidably matched on the pool wall of the both sides of plate 6 by expansion bolt ground way 7, both sides and the slideway 7 of draining baffle plate 6.
The draining baffle plate 6 is made using stainless-steel sheet.
Biofilter 1 described in the utility model be respectively newly-built biofilter or biofilter, wherein
Biofilter be to be transformed on the basis of original biofilter.
As shown in Figure 1 and Figure 2, for newly-built biofilter 1, the water outlet below backwash effluent weir 8, above filter material layer 2
The backwash discharge outlet 4 of strip is opened up on the pool wall of side along its length, and sets electric drainage device；In the electric drainage device
Provided with draining baffle plate 6, the draining baffle plate 6 is adjacent on pool wall and covers backwash discharge outlet 4, and draining baffle plate 6 drives in draining and filled
It can be lifted under the driving put, realize closing or the opening of backwash discharge outlet 4；
As shown in Figure 3, Figure 4, for biofilter 1, the water outlet below backwash effluent weir 8, above filter material layer 2
The backwash discharge outlet 4 of rectangle or circle is opened up on the pool wall of side, and sets manual drainage device；The row of being provided with the manual drainage device
Water baffle plate 6, the draining baffle plate 6 is adjacent on pool wall and covers backwash discharge outlet 4, and backwash can be realized after hand-operated lifting
The closing of discharge outlet 4 or opening；
Elder generation's air purge, loose by filtrate when biofilter 1 backwashes；Air water is washed again, and the biomembrane of aging is rushed from filtrate
Elution falls；Wash again, the suspension in biofilter 1 is gone out into biofilter 1 by backwash effluent weir 8；
After the effluent sewerage of backwash effluent weir 8, draining baffle plate 6 is slowly fallen, from up to down will be clear by backwash discharge outlet 4
Sewage in pool 3 is further vented；
When the water level decreasing in biofilter 1 can not extremely flow automatically discharge or suspension obvious sediment in biofilter 1,
Backwash blower fan is opened, bubble uniformly closes backwash blower fan afterwards everywhere in biofilter 1, and suspension is blown into suspension using bubble
State；
The water intaking valve of biofilter 1 is opened, is gone out the dirt in biofilter 1 from backwash discharge outlet 4 using water inlet；Treat
After water outlet is clean, it is lifted up draining baffle plate 6 and closes backwash discharge outlet 4；Backwash process terminates, and biofilter 1 recovers normal
Water process state.
The opening size of backwash discharge outlet 4 determines according to the sewage efflux time of clear water zone 3 of setting, backwash discharge outlet 4
It is to prevent filtrate from being flowed out with current higher than filter material layer 2.Draining baffle plate 6 is arranged on the inner side of backwash discharge outlet 4, for preventing
Filtrate is rushed out from backwash discharge outlet 4 during backwash, and the surrounding of draining baffle plate 6 exceeds the segment distance of backwash discharge outlet 4 one, prevents
Filtrate is spilt.
From backwash 4 sewer of discharge outlet when, draining baffle plate 6 progressively declines from top to bottom, prevent flow rate of water flow cross senior general filter
Material is gone out；Slideway 7, which is used to provide draining baffle plate 6, supports and can play position-limiting action.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its design is subject to equivalent substitution or change, should all cover within the scope of protection of the utility model.
Claims (9)
1. a kind of backwashing water drainage arrangement of biofilter, the biofilter includes upper strata clear water zone and lower floor's filter material layer；
Clear water zone top drain-side sets backwash effluent weir；Characterized in that, the water outlet side below the backwash effluent weir, above filter material layer
Backwash discharge outlet and corresponding drainage arrangement are set on pool wall；Draining baffle plate is provided with drainage arrangement, the draining baffle plate is adjacent in pond
On wall and backwash discharge outlet is covered, draining baffle plate can lift in the case where hand gear drives or electric device drives, and realize backwash
The closing of discharge outlet or opening.
A kind of 2. backwashing water drainage arrangement of biofilter according to claim 1, it is characterised in that the biological filter
When pond is newly-built biofilter, backwash discharge outlet is along pool wall length to the strip backwash discharge outlet opened up, corresponding draining
Device is electric drainage device, and draining baffle plate realizes lifting action under the driving of electric device.
A kind of 3. backwashing water drainage arrangement of biofilter according to claim 2, it is characterised in that the strip
The height of backwash discharge outlet is not less than 100mm, and its lower edge is apart from 200~300mm at the top of filter material layer.
A kind of 4. backwashing water drainage arrangement of biofilter according to claim 2, it is characterised in that the electronic dress
It is set to Electrohydraulic push rod；The both sides of draining baffle plate set Electrohydraulic push rod, and 2 Electrohydraulic push rod synchronization actions respectively.
A kind of 5. backwashing water drainage arrangement of biofilter according to claim 2, it is characterised in that the newly-built life
Corresponded in thing filter tank and slideway is vertically set on the pool wall of draining baffle plate one or both sides, draining baffle plate one or both sides and cunning
Road is slidably matched.
A kind of 6. backwashing water drainage arrangement of biofilter according to claim 1, it is characterised in that the biological filter
Pond be biofilter when, backwash discharge outlet be rectangle or circle backwash discharge outlet, corresponding drainage arrangement is manual
Drainage arrangement, draining baffle plate realize lifting action under the drive of hand gear.
A kind of 7. backwashing water drainage arrangement of biofilter according to claim 6, it is characterised in that the rectangle or
The length of side or diameter of circular backwash discharge outlet are not less than 200mm, its lower edge 200~300mm apart from the top of filter material layer.
A kind of 8. backwashing water drainage arrangement of biofilter according to claim 6, it is characterised in that the dress manually
Hand hoisting bar is set to, the bottom of hand hoisting bar is fixedly connected with draining baffle plate；By swollen on the pool wall of draining baffle plate both sides
Swollen bolt ground way, both sides and the slideway of draining baffle plate are slidably matched.
A kind of 9. backwashing water drainage arrangement of biofilter according to claim 1, it is characterised in that the draining gear
Plate is made using stainless-steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489230.8U CN206767746U (en) | 2017-05-04 | 2017-05-04 | A kind of biofilter provided with back purge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489230.8U CN206767746U (en) | 2017-05-04 | 2017-05-04 | A kind of biofilter provided with back purge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206767746U true CN206767746U (en) | 2017-12-19 |
Family
ID=60649137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720489230.8U Active CN206767746U (en) | 2017-05-04 | 2017-05-04 | A kind of biofilter provided with back purge system |
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| Country | Link |
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| CN (1) | CN206767746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368768A (en) * | 2018-11-21 | 2019-02-22 | 江南大学 | A kind of Method of blockage removal of rainwater bio-slow sand filtration |
| WO2019222938A1 (en) * | 2018-05-22 | 2019-11-28 | 湖南深拓智能设备股份有限公司 | Treatment process and apparatus of submerged lifting circulation type biological membrane filter tank |
-
2017
- 2017-05-04 CN CN201720489230.8U patent/CN206767746U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019222938A1 (en) * | 2018-05-22 | 2019-11-28 | 湖南深拓智能设备股份有限公司 | Treatment process and apparatus of submerged lifting circulation type biological membrane filter tank |
| US11420888B2 (en) | 2018-05-22 | 2022-08-23 | Hunan Scientop Automatic Equipment Shares Co. Ltd | Treatment process and device for submerged lifting circulation type bio-membrane filter |
| CN109368768A (en) * | 2018-11-21 | 2019-02-22 | 江南大学 | A kind of Method of blockage removal of rainwater bio-slow sand filtration |
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