CN110314419A - Sedimentation basin - Google Patents
Sedimentation basin Download PDFInfo
- Publication number
- CN110314419A CN110314419A CN201910596269.3A CN201910596269A CN110314419A CN 110314419 A CN110314419 A CN 110314419A CN 201910596269 A CN201910596269 A CN 201910596269A CN 110314419 A CN110314419 A CN 110314419A
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- Prior art keywords
- sedimentation basin
- water
- region
- declined
- district
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
Abstract
The present invention provides one kind to be provided with incline district, the sedimentation basin of transition region between declined region and incline district and declined region, the cross-sectional area of declined region is less than the cross-sectional area of incline district, when a certain amount of water incline district biggish from the lesser declined region inflow cross-sectional area of cross-sectional area, flow rate of water flow can become smaller, the design of transition region is between incline district and declined region, the sludge of incline district can slide to transition region, increase the quantity of transition region endoparticle, effectively improve granule density, promote the formation of dynamic suspension layer, dynamic suspension layer major part big absolutely is the particle having a size of 5-8 μm, particle of the small sized particles flowed through the especially size less than 5 μm can be intercepted, precipitate small sized particles, this does not only reach the effect for improving effluent quality, the pollution to ultrafiltration membrane can also effectively be lowered.
Description
Technical field
The present invention relates to solid-liquid separation technique field more particularly to a kind of improvement of water treatment facilities technology, more particularly to
A kind of sedimentation basin.
Background technique
The type of sedimentation basin is mainly flat flow and ramp type at present, for rectangular sedimentation tank, go water removal in
For grain mainly by the natural subsidence of particle, particle removal efficiency is bad；For ramp type sedimentation basin, existing major part is
V-type inclined-plate clarifying basin can generate speed difference when water flow passes through inclined plate, and particle is easy precipitating under the effect of gravity in water, but right
It can be done always in water in particle of the little particle especially size less than 5 μm since lighter weight is thus small by gravity
Random Brownian movement；And the small sized particles characteristics of motion is poor, and structural development not exclusively is difficult to be separated by solid-liquid separation, right
It is poor in the existing V-type inclined-plate clarifying basin sedimentation effect of the particle of such size.However, granule particles of the size less than 5 μm compared with
Small, specific surface is big and has huge surface energy, is easily made into organic matter and the carrier of other harmful substances in water, and makes
At more serious water pollution problems.
Therefore, the particle to size in water less than 5 μm is all difficult in view of existing sedimentation basin carry out preferable precipitating removal, it is anxious
Need to improve to existing sedimentation basin prevents from polluting to be removed this kind of particle.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of sedimentation basin, can to particle in water,
Especially particle of the size less than 5 μm carries out good removal, prevents water pollution caused by particle in water, blocking ultrafiltration membrane fenestra
The problems such as.
Technical scheme is as follows:
The present invention provides a kind of sedimentation basins, between sedimentation basin setting incline district, declined region and incline district and declined region
Transition region, the cross-sectional area of declined region is less than the cross-sectional area of incline district.
The beneficial effects of the present invention are: the present invention provides one kind be provided with incline district, declined region and incline district and under
The cross-sectional area of transition region and declined region inclined-plane between oblique area is less than the sedimentation basin of the cross-sectional area on incline district inclined-plane, to be precipitated
The water of processing flows successively through declined region, transition region and incline district, when a certain amount of water is flowed into from the lesser declined region of cross-sectional area
When the biggish incline district of cross-sectional area, flow rate of water flow can become smaller, in addition, water flow is when flowing through the inclined-plane of declined region and incline district,
Water flow can generate speed difference in gravity direction, can remove various sizes of particle, prevent the biggish particle of particle size from entering
Transition region increases the sludge quantity of incline district；Water flow flows upwards enters incline district by transition region, and the design of transition region is located at
Between incline district and declined region, the particle of the precipitating of incline district can slide the quantity that transition region endoparticle is increased to transition region,
Granule density is effectively improved, promotes the formation of dynamic suspension layer, dynamic suspension layer major part big absolutely is having a size of 5-8 μm
Grain, the effects of particle of the small sized particles flowed through the especially size less than 5 μm can be intercepted, be adsorbed, makes small size
Particle precipitating, this does not only reach the effect for improving effluent quality, can also effectively lower the pollution to ultrafiltration membrane.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of sedimentation basin of the present invention；
Fig. 2 is the top view of sedimentation basin in Fig. 1；
Fig. 3 is the cross-sectional view that the direction A-A is pressed in Fig. 2；
Fig. 4 is the schematic diagram of sedimentation basin flow rate of water flow in Fig. 1；
Fig. 5 is the schematic diagram in declined board direction in vertical view 3.
Specific embodiment
The present invention provides what one kind can well remove particle of the especially size of fine particle in water less than 5 μm
Sedimentation basin, it is to make the purpose of the present invention, technical solution and effect clearer, clear and definite, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
It should be noted that the cross-sectional area of the present embodiment is the maximum area that confession under directions pending water flows through.
Fig. 1-3, the upper end opening and setting inner cavity (not shown) of sedimentation basin 1 are please referred to, sedimentation basin 1 presents brief summary lower greatly
Structure, sedimentation basin 1 set gradually water distribution area 8, declined region 6, transition region 5, incline district 4, spacer region 9 and sedimentation basin 1 from bottom to top
The arranged side by side water blocking member 3 and reservoir 2 in top.Because the incline district 4 of sedimentation basin 1, transition region 5 and declined region 6 are set gradually,
The cross-sectional area of declined region 6 is less than the cross-sectional area of incline district 4, and the water of processing to be precipitated flows successively through declined region 6, transition region 5
With incline district 4, when a certain amount of water incline district 4 biggish from the lesser inflow of declined region 6 cross-sectional area of cross-sectional area, water flow
Flow velocity can become smaller, in addition, water flow, when flowing through the inclined-plane of declined region 6 and incline district 4, water flow can generate speed in gravity direction
Difference can remove various sizes of particle, prevent the biggish particle of particle size from entering transition region 5, increase the sludge of incline district 4
Amount；Water flow flows upwards enters incline district 4 by transition region 5, the design of transition region 5 be located at incline district 4 and declined region 6 it
Between, the sludge of incline district 4 can slide the quantity that 5 endoparticle of transition region is increased to transition region 5, effectively improve granule density, promote
Into the formation of dynamic suspension layer, dynamic suspension layer major part big absolutely is the particle having a size of 5-8 μm, can be to the small ruler flowed through
Particle of the very little particle especially size less than 5 μm is intercepted, and precipitates small sized particles, this does not only reach improvement effluent quality
Effect, can also effectively lower the pollution to ultrafiltration membrane.
Referring to figure 3., water distribution area 8 is arranged in the lower part of sedimentation basin 1, and water distribution area 8 is much smaller than precipitating along the width of water (flow) direction
The upper end opening in pond 1, in this way, water distribution area 8 is shorter along water (flow) direction, it is uniform to improve 1 water distribution of sedimentation basin, solves existing water distribution area
The water distribution unevenness of the excessive generation of 8 width makes the problem that particle removal effect is bad in water.Water inlet 7 is arranged in water distribution area 8, enters water
Mouth 7 can be one or more, and the side wall of the water distribution area 8 of the present embodiment water inlet 7 spaced along the vertical direction is two,
Two water inlets 7 are close to declined region 6, it is preferable that and two water inlets 7 are preferably set side by side, when two water inlets 7 are arranged,
The area of flow velocity large area in transition region 5 is effectively increased, has more greater particle size particle wadding bodies under this condition herein
Region suspends, so that superposed layer area granule density increases, is more advantageous to interception of the superposed layer to small sized particles, improves settling vessel
The removal effect of 1 pair of small sized particles especially particle of the size less than 5 μm.
Please continue to refer to Fig. 3 and Fig. 5, after the water distribution uniformity of water distribution area 8, water flow flows through declined region 6,5 and of transition region
Several upper runners 41 are arranged in incline district 4, the inclined-plane of incline district 4, and the cross-sectional area of declined region 6 is less than incline district 4, when a certain amount of
When water flows into cross-sectional area biggish incline district 4 from the lesser declined region 6 of cross-sectional area, water flow can become smaller, and be conducive to in water
The precipitating stage by stage of different-grain diameter particle, several lower flow channels 61 of inclined-plane setting of declined region 6, upper runner 41 and lower flow channel 61 are set
Set can there are many, upper runner 41 on the inclined-plane of incline district 4 with the angled setting of horizontal plane, the angle is at 0-90 °
It is ok in range, is also 0-90 ° for the angular range of lower flow channel 61.For the formation side of upper runner 41 and lower flow channel 61
Formula can be set to corresponding inclined-plane and be formed using modes such as plate, pieces, and the present embodiment uses the inclined-plane interval in incline district 4 solid
Surely setting inclined board 42 forms upper runner 41, and the inclined-plane interval fixed setting declined board 62 of declined region 6 forms lower flow channel 61,
In, upper runner 41 is less than gradient of the lower flow channel 61 on 6 inclined-plane of declined region, 41 He of upper runner in the gradient on 4 inclined-plane of incline district
The tilt angle of lower flow channel 61 can be depending on situation, it is preferable that inclination of the upper runner 41 on 4 inclined-plane of incline district between horizontal plane
Angle can be 45 °, and tilt angle of the lower flow channel 61 on 6 inclined-plane of declined region between horizontal plane can be 60 °, 41 He of upper runner
Lower flow channel 61 is obliquely installed the high efficiency precipitating be conducive to particle in water, and the width of upper runner 41 is less than the width of lower flow channel 61
Degree, the width of lower flow channel 61 is big, can remove a part of larger-size particle in water removal, prevents the bulky grain in water from flowing into transition
Area 5 keeps the particle in the water flow by incline district 4 abundant in addition, the length on the inclined-plane of declined region 6 is less than the inclined-plane of incline district 4
Precipitating enters transition region 5.In the present embodiment, the cross-sectional area of water distribution area 8 and declined region 6 is constant, the cross-sectional area of transition region 5
The structure being gradually increased, transition region 5 are in the structure that width is gradually increased, and water flow flows into transition region 5 from the lesser water distribution area 8 of width
Afterwards, because 5 width of transition region is gradually increased, flow velocity and water (flow) direction is caused to change, the flow rate of water flow close to sidewall areas is small,
It is greater than the flow rate of water flow of both sides sidewall areas positioned at the flow rate of water flow of 5 intermediate region of transition region, positioned at 5 intermediate region of transition region
Flow rate of water flow can create preferable waterpower item with the larger size particle in support water flow greatly for the formation of stable suspersion layer
Part is arranged several baffle (not shown) and constitutes several lower V-type runners 63, phase in Fig. 5 between the adjacent declined board 62 of declined region 6
Several lower V-type runners 63 being arranged between adjacent declined board 62 constitute lower flow channel 61, and the lower V-type runner 63 being arranged in lower flow channel 61 is advantageous
The precipitating of particle in water similarly may also set up several baffles and constitute several upper V-types between the adjacent inclined board 42 of incline district 4
Runner (not shown), several upper V-type runners being arranged between the adjacent inclined board 42 of incline district 4 constitute upper runners 41.
Referring to figure 4., Fig. 4 is flow velocity schematic diagram of the pending water in sedimentation basin 1, is in the flow velocity B of water distribution area 8, water
Be it is variable, when to enter its flow velocity of water distribution area 8 B maximum for the rigid water in-out port 7 of water, later, by the water distribution effect in water distribution area 8,
Water is gradually reduced during flowing to declined region 6, since the cross-sectional area of water distribution area 8 is small, is flowing into the entrance of declined region 6
Water flow is more uniform, and when water flows through the inclined-plane of declined region 6, the flow velocity C of water is gradually reduced, and flow velocity of the water in transition region 5 is divided into two
A region, the larger area D of flow velocity1And flow velocity is compared with cell D2, when water flows into transition region 5 from declined region 6, a small amount of water can be encountered
It crosses the side wall in area 5 and turns back to form flow velocity compared with cell D2, most water can directly flow through transition region 5 formed the larger area D of flow velocity1,
In the larger area D of flow velocity1The biggish dynamic pressure area of pressure can be formed, due to the larger area D of flow velocity1Flow velocity is larger, can with support its larger ruler
Very little particle creates preferable hydraulics for the formation of stable suspersion layer.Water flows into incline district 4, the stream of incline district 4 later
Fast E gradually becomes smaller, and facilitates the precipitating of lower particle in water, and the little particle of precipitating falls into transition region 5 and contributes to form and stablize outstanding
Floating layer, later, water flow into spacer region 9, flow rate F is gradually reduced, in short, water flow successively through water distribution area 8, declined region 6, transition region 5,
The flow velocity of incline district 4 and spacer region 9 is in the trend being gradually reduced.
Please refer to Fig. 1-3, the spacer region 9 of sedimentation basin 1, the top of sedimentation basin 1 water blocking member 3 and reservoir 2 arranged side by side,
Water blocking member 3 is connected to reservoir 2, and barrier plate 21 is arranged between water blocking member 3 and reservoir 2, and water blocking member 3 is set to barrier plate 21, is kept off
Water part 3 can stop water outlet, and the water outlet for being conducive to sedimentation basin 1 is uniform, and the structure of water blocking member 3 can be diversified forms, this
In embodiment, water blocking member 3 uses perforated plate structure, and covers multilayer perforated plate on the top of sedimentation basin 1, is discharged sedimentation basin 1
Uniformly, water outlet 22 is arranged in reservoir 2.
In the present embodiment, water to be precipitated enters water distribution area 8 from water inlet 7 and goes by the precipitation of declined region 6
Larger-size particle in water removal, water flows into transition region 5 and incline district 4, under the precipitation of incline district 4, precipitating later
Particle moves down returns to transition region 5, forms dynamic suspension layer in transition region 5, the particle in dynamic suspension layer is to the thin of process
Little particle generates the effects of stopping, adsorbing, and promotes the precipitating of particle of the fine particle especially size less than 5 μm in water, it
Afterwards, spacer region 9 and water blocking member 3 that short grained water passes through 1 top of sedimentation basin are removed, outlet of the water uniformly from reservoir 2 is made
It is discharged in 22.Therefore, the present invention is realized using the Precipitation of particle in water by the way that different zones are arranged in sedimentation basin 1
Different-grain diameter particle in water stage by stage, is efficiently removed, and creatively produces dynamic suspension layer and is improved to reach
To the removal effect of fine particle in water, and removal process does not consume other energy, solves and removes to fine particle in water
Problem.
In addition, it is necessary to sink, it is emphasized that sedimentation basin 1 of the invention is not limited to the structure of above-mentioned setting inner cavity, upper opening
Shallow lake pond 1 can also be the open architecture for being not provided with inner cavity, set gradually incline district 4, transition region 5 and declined region 6, other structures
It can other sedimentation basins as obtained from the same replacement of those of ordinary skill in the art.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of sedimentation basin, which is characterized in that sedimentation basin setting incline district, declined region and the incline district and it is described under
Transition region between oblique area, the cross-sectional area of the declined region are less than the cross-sectional area of the incline district.
2. sedimentation basin according to claim 1, which is characterized in that the inclined-plane of the incline district tiltedly sets several upper runners, institute
The inclined-plane for stating declined region tiltedly sets several lower flow channels.
3. sedimentation basin according to claim 2, which is characterized in that the inclined-plane interval setting inclined board of the incline district is formed
The inclined-plane interval setting declined board of the upper runner, the declined region forms the lower flow channel.
4. sedimentation basin according to claim 2, which is characterized in that the angle of the upper runner and horizontal plane be less than it is described under
The angle of runner and horizontal plane.
5. according to any sedimentation basin of claim 2-4, which is characterized in that the width of the upper runner is less than described flow down
The width in road.
6. sedimentation basin according to claim 1, which is characterized in that the upper end opening of the sedimentation basin and setting inner cavity, institute
It states and is set to the inner cavity in incline district, the declined region and the transition region.
7. sedimentation basin according to claim 6, which is characterized in that water distribution area, the cloth is arranged in the lower part of the sedimentation basin
Pool is much smaller than the opening along the width of water (flow) direction.
8. sedimentation basin according to claim 7, which is characterized in that the side wall of the water distribution area is spaced setting along the vertical direction
Two water inlets.
9. sedimentation basin according to claim 8, which is characterized in that the cross-sectional area of the transition region is gradually increased.
10. sedimentation basin according to claim 6, which is characterized in that the top of the sedimentation basin be arranged side by side water blocking member and
Water outlet, the water blocking member are connected to the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596269.3A CN110314419B (en) | 2019-07-03 | 2019-07-03 | Sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596269.3A CN110314419B (en) | 2019-07-03 | 2019-07-03 | Sedimentation tank |
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| Publication Number | Publication Date |
|---|---|
| CN110314419A true CN110314419A (en) | 2019-10-11 |
| CN110314419B CN110314419B (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910596269.3A Active CN110314419B (en) | 2019-07-03 | 2019-07-03 | Sedimentation tank |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52135461A (en) * | 1976-03-17 | 1977-11-12 | Tsuneo Tsubokawa | Selffwasher for tilted plate type sedimentation and separation systems |
| CN2560634Y (en) * | 2002-07-25 | 2003-07-16 | 长春联创水务有限责任公司 | Efficient rectangle pipe chute and efficient combined tube settler |
| CN1806885A (en) * | 2005-12-15 | 2006-07-26 | 景兴 | Cone laminated concentric ring bevel deposition device |
| CN102358646A (en) * | 2011-08-11 | 2012-02-22 | 江苏新宇天成环保工程有限公司 | High-efficiency deposition device for mines |
| CN208869448U (en) * | 2018-07-19 | 2019-05-17 | 深圳信息职业技术学院 | A kind of high-performance bio chemistry sewage-treatment plant |
-
2019
- 2019-07-03 CN CN201910596269.3A patent/CN110314419B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52135461A (en) * | 1976-03-17 | 1977-11-12 | Tsuneo Tsubokawa | Selffwasher for tilted plate type sedimentation and separation systems |
| CN2560634Y (en) * | 2002-07-25 | 2003-07-16 | 长春联创水务有限责任公司 | Efficient rectangle pipe chute and efficient combined tube settler |
| CN1806885A (en) * | 2005-12-15 | 2006-07-26 | 景兴 | Cone laminated concentric ring bevel deposition device |
| CN102358646A (en) * | 2011-08-11 | 2012-02-22 | 江苏新宇天成环保工程有限公司 | High-efficiency deposition device for mines |
| CN208869448U (en) * | 2018-07-19 | 2019-05-17 | 深圳信息职业技术学院 | A kind of high-performance bio chemistry sewage-treatment plant |
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| Publication number | Publication date |
|---|---|
| CN110314419B (en) | 2021-10-22 |
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