CN206126976U - Dark bed denitrification biological filter - Google Patents
Dark bed denitrification biological filter Download PDFInfo
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- CN206126976U CN206126976U CN201621121183.3U CN201621121183U CN206126976U CN 206126976 U CN206126976 U CN 206126976U CN 201621121183 U CN201621121183 U CN 201621121183U CN 206126976 U CN206126976 U CN 206126976U
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- gas distribution
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- emitting hole
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Abstract
The utility model discloses a dark bed denitrification biological filter, including the cell body and install the fiber filtering material layer in the cell body, filter material supporting layer and water distribution gas distribution mechanism, water distribution gas distribution mechanism includes the distributing channel, two intake pipe, many gas distribution pipes, filter block layer and drainage channel, the distributing channel sets up the upper portion at the cell body, drainage channel sets up the bottom at the cell body, the fiber filtering material layer, filter material supporting layer and filter block layer set up from top to bottom in proper order, two intake pipe symmetries set up the both sides on the filter block layer, link to each other through many gas distribution pipes between two intake pipe, be provided with a plurality of gas distribution holes on the every gas distribution pipe, the interception apron is installed to the top on fiber filtering material layer, the otter board has been installed between filter block layer and the drainage channel, its whole filtration purification process of process of filtering sewage is quick, high -efficient, does benefit to denitrification of wastewater, especially get rid of sewage in total nitrogen effect obvious, it is effectual to go out water, and does not run off at back flush in -process filter material, the biomembrane that the domestication formed on the fiber filtering material layer is difficult for coming off.
Description
Technical field
The utility model is related to water-treatment technology field, specifically a kind of deep bed denitrification bio-filter.
Background technology
Common denitrification bio-filter is mainly used to remove the ammonia nitrogen in sewage, is held by pond body, filter material layer, filtrate mostly
The composition such as support layer and the water distribution gas distribution mechanism for backwash, typically using quartz sand as filler, biology is in quartz for its filter material layer
Growth and breeding form biomembrane in the sand filtration bed of material, therefore quartz sand filter media layer is biomembranous carrier, and the biomembrane is in Shui Chu
With waste water during reason, it is purified sewage.Existing denitrification bio-filter has that floor space is larger, filtering velocity compared with
Low problem, and quartz sand is used as filtrate, not easy to be filmed, additionally, in backwash, easily causing filterins media run-off, abrasion, biology
Film comes off or debris is introduced in filtration system, and the biological flora tamed can be reduced or destroyed to biomembranous coming off, most
The effluent quality and outlet effect in filter tank are affected eventually.
The content of the invention
Technical problem to be solved in the utility model is：For the deficiencies in the prior art, there is provided a kind of deep bed denitrification
Biofilter, its filtration, purification process to sewage is quick, efficient, beneficial to sewage water denitrification, especially removes total nitrogen effect in sewage
Substantially, outlet effect is good, and filtrate is not lost in backwash process, and the biomembrane of formation is tamed on fiber filtering layer not for fruit
It is easy to fall off.
The utility model solve the technical scheme that adopted of above-mentioned technical problem for：A kind of deep bed denitrification bio-filter,
Fiber filtering layer, filtrate supporting layer and water distribution gas distribution mechanism including pond body and in described pond body, described matches somebody with somebody
Water cloth mechanism of qi structure includes distributing channel, two air inlet pipe, many gas distribution pipes, filter block layer and drainage ditch, and described distributing channel is arranged on
The top of described pond body, described drainage ditch is arranged on the bottom of described pond body, described fiber filtering layer, filtrate support
Layer and filter block layer are setting up and down successively, and two described air inlet pipe are symmetricly set on the both sides of described filter block layer, and described two
Between root air inlet pipe by many described gas distribution pipes be connected, per the gas distribution pipe described in root on be provided with multiple qi-emitting holes, it is described
Fiber filtering layer above interception cover plate is installed, be equiped with web plate between described filter block layer and described drainage ditch.
Carried out before sewage disposal using deep bed denitrification bio-filter of the present utility model, needed on fiber filtering layer first
Domestication forms biomembrane, then carries out sewage disposal, and when carrying out sewage disposal, filter process is：Sewage is entered by distributing channel and filtered
Pond, Jing after fiber filtering layer is filtered, purified, by filter block layer water distribution uniformity, the water after purification collects again Jing after web plate enters drainage ditch
Middle discharge, whole filtration, purification process is quick, efficient, beneficial to sewage water denitrification, especially removes total nitrogen effect in sewage and substantially, goes out
Water effect is good.And backwash process with above-mentioned filter process conversely, washing backwash when, drainage ditch water inlet, distributing channel water outlet；
During the backwash of air purge, the qi-emitting hole on the air Jing gas distribution pipes with pressure is discharged, and through the gap between filter block system is entered.
Filtrate is not lost in backwash process, and the biomembrane that formation is tamed on fiber filtering layer is difficult for drop-off.
The fiber filtering layer that the biofilter adopts is easy to biofilm and forms biomembrane, and the biomembrane for being formed is firm, reliable,
Difficult for drop-off in filtration and backwash process, damage；Intercept filterins media run-off when cover plate is used to prevent from backwashing；Supporting layer is to fibre
Dimension filter material layer plays support and supporting role；Filter block layer plays water distribution uniformity effect, while playing one to fiber filtering layer and supporting layer
Fixed supporting role；Web plate equally plays interception function to filtrate, prevents filterins media run-off when filtering and backwashing, and can prevent anti-
Debris enter filter tank during flushing；Gas distribution pipe plays gas distribution effect in filter process, has air purge and washing concurrently in backwash process
Effect.
Preferably, described filter block layer is spliced by polylith filter block, joinery and its construction phase is passed through between adjacent filter block
Even；The bottom of described filter block layer is provided with the groove of some fovea superiors being adapted with many described gas distribution pipes, described
Many gas distribution pipes are located in a plurality of described groove.Filter block layer is spliced by polylith filter block Jing joinery and its constructions, is mated formation and is tieed up
Shield is easy, can be flexibly applied to different size of filter tank.Groove and the cooperation of gas distribution pipe, preferably positioning are played to filter block layer and are made
With while being easy to the installation and laying of filter block layer.
Preferably, being single pin filter block per the filter block described in block, the bottom per the filter block described in block is narrow end.Compared to biography
The four pin filter blocks or multiway filter block of system, the size of single pin filter block that the utility model biofilter adopts significantly reduces, its top
Area can be only 1/4 size of traditional filter block, it is even more little, therefore when filter block layer is laid in, in same laying area
Under, the gap area at least 50% between filter block and filter block can be increased, the corresponding gap gross area increased on filter block layer increases
The effective area of water distribution gas distribution, so as in backwash process, whether air purge or washes, water distribution gas distribution evenly, while
Dead angle can be reduced, and increases gas output of the unit area filter block layer within the unit interval, be conducive to increasing back washing strength and effect
Really.Further, the top per the filter block described in block and its bottom rounding off, per filter of the groove described in bar by described in polylith
Brick is surrounded.Every groove is surrounded by polylith list pin filter block, simple structure, ingenious, can simplify the structure design of filter block, and is reduced into
This.
Preferably, being provided with two tenons and two tongue-and-grooves per the top of the filter block described in block.The top of every piece of filter block
Two tenons and two tongue-and-grooves are set, it is visual good, facilitate implementation filter block it is quick, accurately mat formation, after mating formation, on every piece of filter block
Tenon and tongue-and-groove and the tongue-and-groove on adjacent filter block and tenon coordinate, realize the joinery and its construction connection between adjacent filter block.
Preferably, described fiber filtering layer is piled up by multiple fiber elements forming, the fiber element bag described in each
Include tow knot and the spacing filament tied in described tow.
Preferably, arranging in two rows per the multiple qi-emitting holes on the gas distribution pipe described in root, i.e. the first qi-emitting hole row and the
Two qi-emitting holes are arranged, and described the first qi-emitting hole row and described the second qi-emitting hole row is symmetricly set on per the gas distribution pipe described in root
Bottom, described first qi-emitting hole row is constituted by arranging multiple first qi-emitting holes at equal intervals along gas distribution pipe length direction, described
Second qi-emitting hole row is constituted by arranging multiple second qi-emitting holes at equal intervals along gas distribution pipe length direction, two the first adjacent gas distributions
Spacing between second qi-emitting hole adjacent with two of the spacing between hole is S, described the first qi-emitting hole row and described second
Qi-emitting hole arranges the distance of 1/2 S that staggers before and after the length direction of gas distribution pipe, and adjacent the first qi-emitting hole and the second qi-emitting hole exists
Angle in orthographic projection on gas distribution pipe cross section in the heart is 60～140 °.Multiple first qi-emitting holes and multiple straggly
Two qi-emitting holes can ensure that gas distribution pipe outlet is uniform, it is ensured that gas distribution effect.Further, the internal diameter of described gas distribution pipe be Φ 40～
60 mm, described the first qi-emitting hole and the aperture of the second described qi-emitting hole is the mm of Φ 2～10, in practice it has proved that, the size
Gas distribution pipe and qi-emitting hole can reach preferably uniform gas distribution effect.
Preferably, described distributing channel is twice, the distributing channel described in twice is symmetricly set on the upper of described pond body
The both sides in portion, the distributing channel described in per pass is surrounded by the side side wall of a flap and described pond body, the top of described flap
Corrugated part is provided with, described corrugated part is arranged along the length direction of described flap.Twice distributing channel and the ripple on flap top
The setting in line portion, uniform fluid flow when being conducive to uniform fluid flow during water process to enter biofilter or backwash discharges biological filter
Pond.
Compared with prior art, the utility model has the advantage of：The deep bed denitrification biological filter that the utility model is provided
The fiber filtering layer that pond adopts is easy to biofilm and forms biomembrane, and the biomembrane for being formed firmly, it is reliable, filtering and backwashed
Difficult for drop-off in journey, damage；Intercept filterins media run-off when cover plate is used to prevent from backwashing；Supporting layer to fiber filtering layer rise support and
Supporting role；Filter block layer plays water distribution uniformity effect, while playing certain supporting role to fiber filtering layer and supporting layer；Web plate
It is same that interception function is risen to filtrate, filterins media run-off when filtering and backwashing is prevented, and debris enter filter when can prevent backwash
Pond；Gas distribution pipe plays gas distribution effect in filter process, has air purge and washing effect concurrently in backwash process；The biofilter mistake
Filter sewage process be：Sewage enters filter tank by distributing channel, Jing after fiber filtering layer is filtered, purified, by the uniform cloth of filter block layer
Water, the water after purification is concentrated Jing after web plate enters drainage ditch discharge again, and whole filtration, purification process is quick, efficient, beneficial to sewage
Denitrogenation, substantially, outlet effect is good especially to remove total nitrogen effect in sewage, and backwash process with above-mentioned filter process conversely,
When sending out flushing, drainage ditch water inlet, distributing channel water outlet, filtrate is not lost in backwash process, and domestication on fiber filtering layer is formed
Biomembrane it is difficult for drop-off.
Description of the drawings
Fig. 1 is the structural representation of the deep bed denitrification bio-filter of embodiment 1；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the outside drawing of filter block layer in embodiment 2；
Fig. 4 is the front view of filter block layer in embodiment 2；
Fig. 5 is the outside drawing of single pin filter block in embodiment 2；
Fig. 6 is the outside drawing of a bit of gas distribution pipe in embodiment 3；
Fig. 7 is that orthographic projection of the first qi-emitting hole adjacent in embodiment 3 with the second qi-emitting hole on gas distribution pipe cross section is put
Big figure.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
The deep bed denitrification bio-filter of embodiment 1, as depicted in figs. 1 and 2, including pond body 1 and in pond body 1
Fiber filtering layer 2, filtrate supporting layer 3 and water distribution gas distribution mechanism, fiber filtering layer 2 is by multiple fiber elements（Not shown in figure）
Accumulation is formed, and each fiber element includes tow knot and the spacing filament tied in tow；Water distribution gas distribution mechanism includes water distribution
4, two air inlet pipe 51 of canal, many gas distribution pipes 5, filter block layer 6 and drainage ditch 7, distributing channel 4 is arranged on the top of pond body 1, distributing channel
4 is twice, and twice distributing channel 4 is symmetricly set on the both sides on the top of pond body 1, and per pass distributing channel 4 is by a flap 41 and pond body 1
Side side wall is surrounded, and the top of flap 41 is provided with corrugated part 42, and corrugated part 42 is arranged along the length direction of flap 41, drainage ditch
7 bottoms for being arranged on pond body 1, fiber filtering layer 2, filtrate supporting layer 3 and filter block layer 6 are setting up and down successively, two air inlet pipe 51
The both sides of filter block layer 6 are symmetricly set on, are connected by many gas distribution pipes 5 between two air inlet pipe 51, arranged on every gas distribution pipe 5
The top for having multiple qi-emitting holes, fiber filtering layer 2 is provided with interception cover plate 8, and filter block layer 6 is spliced by polylith filter block 61, phase
It is connected by joinery and its construction between adjacent filter block 61, the bottom of filter block layer 6 is provided with some be adapted with many gas distribution pipes 5
The groove 62 of fovea superior, many gas distribution pipes 5 are located in a plurality of groove 62, and web plate 9 is equiped between filter block layer 6 and drainage ditch 7.
The deep bed denitrification bio-filter of embodiment 2, the basic phase of structure with the deep bed denitrification bio-filter of embodiment 1
Together, difference is in embodiment 2, and every piece of filter block 61 is single pin filter block, and the bottom of every piece of filter block 61 is narrow end, every piece of filter block
61 top is provided with two tenons 63 and two tongue-and-grooves 64, the top of every piece of filter block 61 and its bottom rounding off, recessed per bar
Groove 62 is surrounded by polylith filter block 61.As shown in Figure 3 and Figure 4, single pin filter block is as shown in Figure 5 for filter block layer in embodiment 2.
The deep bed denitrification bio-filter of embodiment 3, the basic phase of structure with the deep bed denitrification bio-filter of embodiment 1
Together, difference is in embodiment 3, as shown in fig. 6, the multiple qi-emitting holes on every gas distribution pipe 5 are arranged in two rows, i.e., first
Qi-emitting hole is arranged and the second qi-emitting hole row, and the first qi-emitting hole row is symmetricly set on the bottom of every gas distribution pipe 5 with the second qi-emitting hole row,
First qi-emitting hole row is constituted by arranging multiple first qi-emitting holes 52 at equal intervals along the length direction of gas distribution pipe 5, the second qi-emitting hole row by
Arrange multiple second qi-emitting holes 53 at equal intervals along the length direction of gas distribution pipe 5 to constitute, between two the first adjacent qi-emitting holes 52 between
Spacing away between second qi-emitting hole 53 adjacent with two is S, and the first qi-emitting hole row is arranged along gas distribution pipe 5 with the second qi-emitting hole
Stagger the distance of 1/2 S before and after length direction, and adjacent the first qi-emitting hole 52 and the second qi-emitting hole 53 are on the cross section of gas distribution pipe 5
Orthographic projection in angle in the heart be 120 °, as shown in Figure 7.
In embodiment 3, the internal diameter of gas distribution pipe 5 can be the aperture of the mm of Φ 40～60, the first qi-emitting hole and the second qi-emitting hole
Can be the mm of Φ 2～10.
Filter block used is multiway filter block in embodiment 1, and filter block used is single pin filter block in embodiment 2.In actual applications,
The filter block with other structures and shape can also be selected.
Claims (9)
1. a kind of deep bed denitrification bio-filter, including pond body and fiber filtering layer, filtrate in described pond body
Supporting layer and water distribution gas distribution mechanism, it is characterised in that：Described water distribution gas distribution mechanism include distributing channel, two air inlet pipe, many
Gas distribution pipe, filter block layer and drainage ditch, described distributing channel is arranged on the top of described pond body, and described drainage ditch is arranged on institute
The bottom of the pond body stated, two air inlet setting up and down successively, described of described fiber filtering layer, filtrate supporting layer and filter block layer
Pipe is symmetricly set on the both sides of described filter block layer, is connected by many described gas distribution pipes between two described air inlet pipe,
Multiple qi-emitting holes are provided with per the gas distribution pipe described in root, interception cover plate is installed above described fiber filtering layer, it is described
Filter block layer and described drainage ditch between be equiped with web plate.
2. a kind of deep bed denitrification bio-filter according to claim 1, it is characterised in that：Described filter block layer is by polylith
Filter block is spliced, and is connected by joinery and its construction between adjacent filter block；The bottom of described filter block layer be provided with it is described
The groove of some fovea superiors that many gas distribution pipes are adapted, many described gas distribution pipes are located in a plurality of described groove.
3. a kind of deep bed denitrification bio-filter according to claim 2, it is characterised in that：It is list per the filter block described in block
Pin filter block, the bottom per the filter block described in block is narrow end.
4. a kind of deep bed denitrification bio-filter according to claim 3, it is characterised in that：Per the top of the filter block described in block
End and its bottom rounding off, surround per filter block of the groove described in bar by described in polylith.
5. a kind of deep bed denitrification bio-filter according to Claims 2 or 3 or 4, it is characterised in that：Per the filter described in block
The top of brick is provided with two tenons and two tongue-and-grooves.
6. a kind of deep bed denitrification bio-filter according to claim 1, it is characterised in that：Described fiber filtering layer by
Multiple fiber elements are piled up and are formed, and the fiber element described in each includes tow knot and the spacing fiber tied in described tow
Silk.
7. a kind of deep bed denitrification bio-filter according to claim 1, it is characterised in that：Per on the gas distribution pipe described in root
Multiple qi-emitting holes arrange in two rows, i.e. the first qi-emitting hole row and the second qi-emitting hole row, described first qi-emitting hole row and described
The second qi-emitting hole row be symmetricly set on bottom per the gas distribution pipe described in root, the first described qi-emitting hole is arranged by along gas distribution pipe range
Degree direction arranges at equal intervals multiple first qi-emitting holes and constitutes, described the second qi-emitting hole row by along gas distribution pipe length direction at equal intervals
Arrange multiple second qi-emitting holes to constitute, between second qi-emitting hole adjacent with two of the spacing between two the first adjacent qi-emitting holes
Spacing is S, and the first described qi-emitting hole is arranged and staggers 1/2 before and after the length direction of gas distribution pipe with the second described qi-emitting hole row
The distance of S, the angle in the orthographic projection of adjacent the first qi-emitting hole with the second qi-emitting hole on gas distribution pipe cross section in the heart is
60～140 °.
8. a kind of deep bed denitrification bio-filter according to claim 7, it is characterised in that：The internal diameter of described gas distribution pipe
For the mm of Φ 40～60, described the first qi-emitting hole and the aperture of the second described qi-emitting hole is the mm of Φ 2～10.
9. a kind of deep bed denitrification bio-filter according to claim 1, it is characterised in that：Described distributing channel is two
Road, the distributing channel described in twice is symmetricly set on the both sides on the top of described pond body, and the distributing channel described in per pass is by a flap
Surround with the side side wall of described pond body, the top of described flap is provided with corrugated part, and described corrugated part is along described
The length direction of flap is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621121183.3U CN206126976U (en) | 2016-10-14 | 2016-10-14 | Dark bed denitrification biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621121183.3U CN206126976U (en) | 2016-10-14 | 2016-10-14 | Dark bed denitrification biological filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206126976U true CN206126976U (en) | 2017-04-26 |
Family
ID=58573101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621121183.3U Active CN206126976U (en) | 2016-10-14 | 2016-10-14 | Dark bed denitrification biological filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN206126976U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277367A (en) * | 2016-10-14 | 2017-01-04 | 浙江德安科技股份有限公司 | A kind of deep bed denitrification bio-filter |
| CN113443708A (en) * | 2021-08-12 | 2021-09-28 | 中冶华天工程技术有限公司 | Connecting and fixing device for denitrification deep-bed filter bricks |
-
2016
- 2016-10-14 CN CN201621121183.3U patent/CN206126976U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277367A (en) * | 2016-10-14 | 2017-01-04 | 浙江德安科技股份有限公司 | A kind of deep bed denitrification bio-filter |
| CN113443708A (en) * | 2021-08-12 | 2021-09-28 | 中冶华天工程技术有限公司 | Connecting and fixing device for denitrification deep-bed filter bricks |
| CN113443708B (en) * | 2021-08-12 | 2024-06-07 | 中冶华天工程技术有限公司 | Connecting and fixing device for denitrification deep bed filter bricks |
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| CP02 | Change in the address of a patent holder |
Address after: 315812 Zhejiang province Ningbo Daxie Development Zone Xinggang Road No. 1 Patentee after: Zhejiang Dean Technology Co., Ltd. Address before: West Industrial Zone, Beilun District 315812 Zhejiang Daxie Pavilion in Ningbo city 8-6-2 block Patentee before: Zhejiang Dean Technology Co., Ltd. |
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| CP02 | Change in the address of a patent holder |