CN206492256U - Sedimentation basin and the sewage disposal system with it - Google Patents

Abstract

The utility model provides a kind of sedimentation basin and the sewage disposal system with it.Wherein, sedimentation basin includes：Pond body, multiple water-distributing gaps that pond body has internal cavity and connected with internal cavity, multiple water-distributing gap in the vertical directions are arranged at intervals；At least one exhalant canal, exhalant canal is arranged at intervals with water-distributing gap on first level direction；During the current direction exhalant canal flowing entered through multiple water-distributing gaps in internal cavity, the multilayer circulation flow field from top to bottom set gradually is formed in the perpendicular of pond body.The technical solution of the utility model can solve sedimentation basin only one of which precipitation surface in the prior art, and surface loading is smaller, the less problem of sewage load.

Description

Sedimentation basin and the sewage disposal system with it

Technical field

The utility model is related to technical field of sewage treatment equipment, in particular to a kind of sedimentation basin and with it Sewage disposal system.

Background technology

Sedimentation basin is that the precipitation for being more than buoyancy using gravity of the suspension in water and being settled goes in water removal to hang The sewage-treatment plant of float, sedimentation basin is widely used in the treatment of waste water.

Current enter in sedimentation basin from intake tunnel, during current flow through sedimentation basin to exhalant canal, current In suspension can be deposited in sedimentation basin bottom under gravity, and isolate the clear water after suspension then by exhalant canal Discharge outside sedimentation basin.The surface that the beds of precipitation have a common boundary with clear water layer in sedimentation basin is referred to as precipitation surface.The main technique ginseng of sedimentation basin Number is surface loading, and surface loading is the flow of current and the ratio between the cross-sectional area of sedimentation basin.

In the prior art, sedimentation basin only one of which water-distributing gap and an exhalant canal, so that individual layer flow field is formed, individual layer stream Field can be only formed a precipitation surface, and surface loading is smaller, and sewage load is smaller.

Utility model content

Main purpose of the present utility model is to provide a kind of sedimentation basin and the sewage disposal system with it, existing to solve There is sedimentation basin only one of which precipitation surface in technology, surface loading is smaller, the less problem of sewage load.

To achieve these goals, according to one side of the present utility model there is provided a kind of sedimentation basin, including：Pond body, Multiple water-distributing gaps that pond body has internal cavity and connected with internal cavity, multiple water-distributing gap in the vertical directions are arranged at intervals； At least one exhalant canal, exhalant canal is arranged at intervals with water-distributing gap on first level direction；Enter interior through multiple water-distributing gaps During current direction exhalant canal flowing in portion's cavity, form what is from top to bottom set gradually in the perpendicular of pond body Multilayer circulation flow field.

Further, water-distributing gap include the first water-distributing gap and the second water-distributing gap, exhalant canal include the first exhalant canal and Second exhalant canal, the first water-distributing gap and the second water-distributing gap are arranged at the first side of pond body, and the first exhalant canal is arranged on pond Second side relative with the first side of body, the second exhalant canal is located between the second water-distributing gap and the first exhalant canal, from first The water of water-distributing gap outflow flows through internal cavity and flowed out from the first exhalant canal, and the water flowed out from the second water-distributing gap flows through internal cavity From the outflow of the second exhalant canal.

Further, pond body include pond body bottom wall and be arranged on pond body bottom wall and sequentially the first side wall of head and the tail connection, Second sidewall, the 3rd side wall and the 4th side wall, wherein, the first side wall and the 3rd side wall are oppositely arranged, second sidewall and the 4th side Wall is oppositely arranged, and sedimentation basin also includes the distributing channel being arranged on the first side wall, and the first exhalant canal is arranged on the 3rd side wall, Second exhalant canal is arranged between distributing channel and the first exhalant canal, and the first water-distributing gap and the second water-distributing gap are arranged at water distribution On canal, distributing channel, the first exhalant canal and the second exhalant canal extend along the second horizontal direction, wherein, the second horizontal direction There is angle between first level direction.

Further, distributing channel includes the first circulation excessively for being arranged at intervals and vertically extending along first level direction Road and the second flow channels, the outlet of the first flow channels form the first water-distributing gap, and the outlet of the second flow channels forms second Water-distributing gap.

Further, distributing channel also includes the distributing channel bottom wall being arranged on the first side wall and is connected with distributing channel bottom wall Distributing channel riser, distributing channel riser upwardly extends relative to distributing channel bottom wall, and the first side wall, distributing channel bottom wall and distributing channel are vertical Distribution channel is surrounded between plate, distributing channel bottom wall is provided with spaced first distributing hole and the second distributing hole, the first distributing hole Connected with the first flow channels and distribution channel, the second distributing hole is connected with the second flow channels and distribution channel.

Further, distributing channel is also led including being arranged on the first deflector on distributing channel bottom wall and extended downwardly and second Plate is flowed, the first height L1 of the first deflector in the vertical direction is more than the second height of the second deflector in the vertical direction L2, the first distributing hole is located between the first deflector and the first side wall, and the second distributing hole is located at the first deflector and the second water conservancy diversion Between plate, the first flow channels, shape between the first deflector and the second deflector are formed between the first side wall and the first deflector Into the second flow channels.

Further, following relation is met between the first height L1 and the second height L2：2L2≤L1≤3L2, wherein, 150cm≤L1≤300cm。

Further, the top of distributing channel riser is less than the top of the first side wall, the top of distributing channel riser and the first side The distance between top of wall L3 meets following relation：30cm≤L3≤50cm.

Further, the first distributing hole and the second distributing hole are multiple, between two the first distributing holes of arbitrary neighborhood Spacing L4 is more than the spacing L5 between two the second distributing holes of arbitrary neighborhood, and meets following relation：40cm≤L4≤100cm, 30cm≤L5≤80cm。

Further, sparge pipe is equipped with the first distributing hole and the second distributing hole, the diameter D of sparge pipe is met with ShiShimonoseki System：4cm≤D≤10cm.

Further, the first exhalant canal is connected by the 3rd side wall, with the 3rd side wall the first bottom wall and with the first bottom First riser of wall connection is surrounded, and has angle between the first bottom wall and the first riser, and distributing channel includes being arranged on the first side wall On distributing channel bottom wall and the distributing channel riser that is connected with distributing channel bottom wall, the second exhalant canal is by distributing channel riser, with matching somebody with somebody Second bottom wall of water channel riser connection and the second riser being connected with the second bottom wall are surrounded, between the second bottom wall and the second riser With angle.

Further, the top of the first riser is less than the top of the 3rd side wall, the top of the second riser and the first riser Top is flushed, and the top of the first riser meets following relation to the distance between the top of the 3rd side wall L6：90cm≤L6≤ 110cm。

Further, sedimentation basin also includes being arranged in the first side wall and the junction of pond body bottom wall and internally positioned cavity Diversion division, diversion division has inclined surface, has water conservancy diversion angle α between inclined surface and pond body bottom wall, and water conservancy diversion angle α is met Following relation：55°≤α≤65°.

Further, sedimentation basin also includes blowdown apparatus and the spoil disposal passage being arranged on the outside of pond body, and blowdown apparatus is used for The sludge of sedimentation basin bottom is drained into spoil disposal passage.

According to other side of the present utility model there is provided a kind of sewage disposal system, including reaction unit and with it is anti- The sedimentation basin for answering device to connect, sedimentation basin is foregoing sedimentation basin.

Using the technical solution of the utility model, pond body has internal cavity, the multiple water-distributing gaps connected with internal cavity And with water-distributing gap on first level direction at least one spaced exhalant canal, multiple water-distributing gap in the vertical directions It is arranged at intervals, can be in pond body during the current direction exhalant canal flowing entered through multiple water-distributing gaps in internal cavity The multilayer circulation flow field from top to bottom set gradually is formed in perpendicular, so that sedimentation basin be divided into along the depth direction of pond body Suspension in multilayer, every lamellar field can be precipitated in this layer under gravity, so as to form multiple heavy in sedimentation basin Shallow lake surface, so, in the case where not changing water-distributing gap flow, multiple water-distributing gaps can improve the sewage load of sedimentation basin Many times, and then the surface loading and sewage load of sedimentation basin can be substantially improved in the case of identical floor space.

Brief description of the drawings

The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings：

Fig. 1 shows the sectional view of the embodiment according to sedimentation basin of the present utility model；And

Fig. 2 shows the dimensional structure diagram of Fig. 1 sedimentation basin.

Wherein, above-mentioned accompanying drawing is marked including the following drawings：

10th, pond body；11st, internal cavity；12nd, pond body bottom wall；13rd, the first side wall；14th, second sidewall；15th, the 3rd side wall； 16th, diversion division；20th, distributing channel；21st, distributing channel bottom wall；22nd, distributing channel riser；23rd, the first distributing hole；24th, the second distributing hole； 25th, the first deflector；26th, the second deflector；27th, the first water-distributing gap；28th, the second water-distributing gap；30th, the first exhalant canal；31st, One bottom wall；32nd, the first riser；40th, the second exhalant canal；41st, the second bottom wall；42nd, the second riser；50th, spoil disposal passage.

Embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The utility model provides a kind of sedimentation basin and the sewage disposal system with it.

Sewage disposal system includes reaction unit and the sedimentation basin connected with reaction unit.

Reaction unit can be wholely set with sedimentation basin, can also be set with sedimentation basin split.Reaction unit and sedimentation basin When being wholely set, together with reaction unit can be built jointly with sedimentation basin, directly connect.Reaction unit is set with sedimentation basin split When, reaction unit can be connected by pipeline etc. with sedimentation basin.

In embodiment of the present utility model, reaction unit can be coagulation reactor, and oil removal reactor, oxidation or reduction are anti- Answer one in device, acid-base neutralization reaction device, reactor for hydrolysis and acidification, anaerobic biochemical reactor, aerobic biochemical reactor etc. or Multiple combinations.

In embodiment of the present utility model, in order to solve sedimentation basin only one of which precipitation surface of the prior art, surface Load is smaller, the less problem of sewage load, and the structure to sedimentation basin is improved, specifically described below：

As depicted in figs. 1 and 2, in embodiment of the present utility model, sedimentation basin includes pond body 10, and pond body 10 has inner chamber Body 11 and the multiple water-distributing gaps connected with internal cavity 11, multiple water-distributing gap in the vertical directions are arranged at intervals.Sedimentation basin is also wrapped At least one exhalant canal is included, exhalant canal is arranged at intervals with water-distributing gap on first level direction.Enter through multiple water-distributing gaps During current direction exhalant canal flowing in internal cavity 11, formed in the perpendicular of pond body 10 from top to bottom successively The multilayer circulation flow field of setting.Wherein, first level direction is the left and right directions shown in Fig. 2.

By above-mentioned setting, the process of the current direction exhalant canal flowing entered through multiple water-distributing gaps in internal cavity 11 In, the multilayer circulation flow field from top to bottom set gradually can be formed in the perpendicular of pond body 10, so that by sedimentation basin edge The depth direction of pond body 10 is divided into multilayer, and the suspension in every lamellar field can be precipitated in this layer under gravity, so that Multiple precipitation surfaces are formed in sedimentation basin, so, in the case where not changing water-distributing gap flow, multiple water-distributing gaps will can sink The sewage load in shallow lake pond improves many times, and then the surface of sedimentation basin can be substantially improved in the case of identical floor space bears Lotus and sewage load.

When exhalant canal only one of which, the exhalant canal is spaced on first level direction with least one water-distributing gap and set Put.There can be interval between two neighboring water-distributing gap on first level direction, interval can not also be set.

As shown in figure 1, in embodiment of the present utility model, multiple water-distributing gaps include the first water-distributing gap 27 and the second water-distributing gap 28.Exhalant canal includes the first exhalant canal 30 and the second exhalant canal 40.First water-distributing gap 27 and the second water-distributing gap 28 are all provided with Put in the first side of pond body 10, the first exhalant canal 30 is arranged on second side relative with the first side of pond body 10, the second water outlet Passage 40 is located between the second water-distributing gap 28 and the first exhalant canal 30.The water flowed out from the first water-distributing gap 27 flows through internal cavity 11 flow out from the first exhalant canal 30, and the water flowed out from the second water-distributing gap 28 flows through internal cavity 11 and flowed from the second exhalant canal 40 Go out.

In above-mentioned setting, sedimentation basin has two water-distributing gaps and two exhalant canals, forms the sedimentation basin that goes with each other all the time.From The water of one water-distributing gap 27 outflow flows through internal cavity 11 and flowed out from the first exhalant canal 30, the current flowed out from the second water-distributing gap 28 Flowed out through internal cavity 11 from the second exhalant canal 40.So, double-deck flow field, position can be formed in the perpendicular of pond body 10 It is divided into two layers in depth direction of the water in sedimentation basin along pond body 10, so that two precipitation surfaces are formed, with only monolayer deposition The sedimentation basin on surface is compared, and can double the sewage load of sedimentation basin in the case of identical floor space.

Further, the first water-distributing gap 27 is arranged on the first side of pond body 10, and the first exhalant canal 30 is arranged on pond body 10 The second side, so, the current flowed out from the first water-distributing gap 27 flow out through internal cavity 11 from the first exhalant canal 30, can be with Make current that there is longer flow distance, so that the suspension in current is fully precipitated, improve the sedimentation effect of sedimentation basin.

Same reason, the second exhalant canal 40 is located between the second water-distributing gap 28 and the first exhalant canal 30, from second The current that water-distributing gap 28 flows out are passed through after internal cavity 11, transfer the to pond body 10 during the second sidewall face for flowing to pond body 10 Side is flowed, and is flowed out from the second exhalant canal 40, and further the flow distance of increase current, improves sedimentation effect.

Preferably, in embodiment of the present utility model, the height of the first exhalant canal 30 is higher than the first water-distributing gap 27, second The height of exhalant canal 40 is higher than the second water-distributing gap 28.

So, the flowing of current formation straight up can be made, it is to avoid the sludge that disturbance pond body 10 bottom has been precipitated, together When, during current are flowed up can further separating suspension and clear water, improve the sedimentation effect of sedimentation basin.

Alternatively, in the unshowned alternate embodiment of accompanying drawing, the first water-distributing gap 27 can also be arranged on pond body 10 First side, the second water-distributing gap 28 is arranged on the second side of pond body 10.

So, the current reverse flow flowed out from the first water-distributing gap 27 and the second water-distributing gap 28, forms double-deck flow field.

As depicted in figs. 1 and 2, in embodiment of the present utility model, pond body 10 includes pond body bottom wall 12 and is arranged on pond body The first side wall 13, second sidewall 14, the 3rd side wall 15 and the 4th side wall sequentially connected on bottom wall 12 and from beginning to end.Wherein, first The side wall 15 of side wall 13 and the 3rd is oppositely arranged, and the side wall of second sidewall 14 and the 4th is oppositely arranged.Sedimentation basin also includes being arranged on the Distributing channel 20 on side wall 13, the first exhalant canal 30 is arranged on the 3rd side wall 15, and the second exhalant canal 40, which is arranged on, matches somebody with somebody Between the exhalant canal 30 of water channel 20 and first, the first water-distributing gap 27 and the second water-distributing gap 28 are arranged on distributing channel 20.Water distribution Canal 20, the first exhalant canal 30 and the second exhalant canal 40 extend along the second horizontal direction.Wherein, the second horizontal direction and the There is angle between one horizontal direction.

In above-mentioned setting, distributing channel 20 is arranged on the first side wall 13, the first exhalant canal 30 is arranged on the 3rd side wall It on 15, can maximize flow distance of the current on first level direction.By the first water-distributing gap 27 and the second water-distributing gap 28 The structure of sedimentation basin can be simplified by being arranged on distributing channel 20.Distributing channel 20, the first exhalant canal 30 and the second exhalant canal 40 extend along the second horizontal direction, can form uniformity in the section in the second horizontal direction in sedimentation basin Flow field.

Specifically, as depicted in figs. 1 and 2, in embodiment of the present utility model, the cross section of pond body 10 is rectangle, first Side wall 13, second sidewall 14, the 3rd side wall 15 and the 4th side wall are each perpendicular to pond body bottom wall 12 and set, so as to form rectangle precipitation Pond, the angle between the second horizontal direction and first level direction is 90 °.

As shown in Fig. 2 in embodiment of the present utility model, bearing of trend and the first level side of the length of second sidewall 14 To parallel, the bearing of trend of the length of the first side wall 13 and the second horizontal direction parallel.

Rectangle sedimentation tank has capacity utilization high compared with the sedimentation basin of prior art, and surface loading is big, the residence time Short, effluent quality is good, construction investment is low, the good advantage of applicability, and large, medium and small type sewage plant and multiple-quality water can apply square Shape sedimentation basin.

As shown in figure 1, in embodiment of the present utility model, distributing channel 20 includes being arranged at intervals along first level direction and edge The first flow channels and the second flow channels of vertical direction extension.The outlet of first flow channels forms the first water-distributing gap 27, The outlet of second flow channels forms the second water-distributing gap 28.

By above-mentioned setting, the current into distributing channel 20 are first split into two-way, respectively along the first flow channels and second Flow channels flow straight down, because the first water-distributing gap 27 and the in the vertical direction of the second water-distributing gap 28 are arranged at intervals, therefore The two-way current flowed out from the first water-distributing gap 27 and the second water-distributing gap 28 successively switch to bottom horizontal flow sheet, and respectively along first level side To through internal cavity 11, so as to advantageously form the double-deck flow field being independent of each other.

As shown in figure 1, in embodiment of the present utility model, distributing channel 20 also includes the water distribution being arranged on the first side wall 13 Canal bottom wall 21 and the distributing channel riser 22 being connected with distributing channel bottom wall 21.Distributing channel riser 22 relative to distributing channel bottom wall 21 to Upper extension, distribution channel is surrounded between the first side wall 13, distributing channel bottom wall 21 and distributing channel riser 22.Distributing channel bottom wall 21 is provided with The spaced distributing hole 24 of first distributing hole 23 and second.First distributing hole 23 is connected with the first flow channels, the second water distribution Hole 24 is connected with the second flow channels.

In above-mentioned setting, distribution channel can form the intake tunnel of sedimentation basin, and is arranged at intervals on distributing channel bottom wall 21 One distributing hole 23 and the second distributing hole 24 can be in order to forming two-way water inlet current.

Preferably, as shown in figure 1, distributing channel bottom wall 21 is vertical with the first side wall 13 is connected, distributing channel riser 22 and water distribution Canal bottom wall 21 is vertically connected, and the first distributing hole 23 and the second distributing hole 24 are along first level direction interval, and the first distributing hole 23 Vertically set with the axis of the second distributing hole 24.Distributing channel bottom wall 21 and distributing channel riser 22 are along the second level side To extension.

By above-mentioned setting, the rectangle distribution channel extended along the second horizontal direction can be formed, is easy to current in distribution channel Interior Uniform Flow, while the water inlet current that two-way flows straight down can be formed, is conducive in the perpendicular of pond body 10 Form the double-deck flow field being independent of each other.

As shown in figure 1, in embodiment of the present utility model, distributing channel 20 also include being arranged on distributing channel bottom wall 21 and to The first deflector 25 and the second deflector 26 of lower extension.First height L1 of the in the vertical direction of the first deflector 25 is more than the Second height L2 of the in the vertical direction of two deflector 26.First distributing hole 23 be located at the first deflector 25 and the first side wall 13 it Between, the second distributing hole 24 is located between the first deflector 25 and the second deflector 26.The deflector 25 of the first side wall 13 and first it Between form the first flow channels, form the second flow channels between the first deflector 25 and the second deflector 26.

By above-mentioned setting, current in distribution channel are two road direction ponds by 24 points of the first distributing hole 23 and the second distributing hole Water distribution in body 10, and flowed separately down in the presence of the first deflector 25 and the second deflector 26, then again respectively to pond The center flow of body 10, in the process, current can follow the minimum flow principle of on-way resistance, in the work of the second deflector 26 Under, on-way resistance is minimum during the current formation O shape flow fields discharged out of second flow channels, in the effect of the first deflector 25 Under, on-way resistance is minimum during the current formation U-shaped flow field discharged out of first flow channels.

Specifically, because the height on the vertical direction of the second deflector 26 is smaller, the current flowed out from the second distributing hole 24 By the second flow channels, the horizontal velocity to the center flow of pond body 10 is produced first under the guiding of the second deflector 26, should Road current switch to rise flowing when flowing to the 3rd side wall 15 along first level direction, in the central bus to pond body 10 and rising During isolate clear water, and reversely flow to the second exhalant canal 40, form the flow field of approximate O shapes, suspension is then deposited to The bottom of sedimentation basin.

Because the height on the vertical direction of the first deflector 25 is larger, the current flowed out from the first distributing hole 23 pass through first Switch to the center to sedimentation basin after flow channels, the depth that pool bottom sludge face is dropped to close under the guiding of the first deflector 25 Flowing, current switch to rise flowing when flowing to the 3rd side wall 15 along first level direction, in the central bus to pond body 10 and Clear water is isolated during rising, and flows to the first exhalant canal 30, the flow field of approximate U shape is formed.The road current are because elder generation Flow down to behind the relatively low position of pond body 10 and slowly flowed to the center of pond body 10 again, suspension meeting theoretical based on shallow layer precipitating Pool bottom sludge layer is deposited to quickly.The current in O shapes flow field and U-shaped flow field form upper and lower two precipitation surfaces in sedimentation basin, The surface loading of sedimentation basin is added, while also increasing the thickness of the beds of precipitation and clear water layer in sedimentation basin, suspension is improved Deposition efficiency.

As depicted in figs. 1 and 2, the first deflector 25 and the second deflector 26 is vertical with distributing channel bottom wall 21 is connected.The Two deflectors 26 extend straight down along distributing channel riser 22.

So, the first flow channels and the second flow channels vertically extended can be formed, so that first matches somebody with somebody The motion of the current formation that the distributing hole 24 of water hole 23 and second flows out straight down.

In embodiment of the present utility model, the depth of pond body 10 is 5m-6m.

In the prior art, the depth generally 3.5m-4.5m of rectangle sedimentation tank is out when entering, pond is deeply shallower.This practicality is new By increasing the depth of pond body 10 in the embodiment of type, it can be ensured that the suspension in two lamellar fields have enough sedimentations away from From so as to improve the treating capacity of sewage while sedimentation effect is ensured.

Further, it can also be avoided in the prior art in embodiment of the present utility model by increasing the depth of pond body 10 The sludge that easily agitation bottom has been settled when the flow velocity of current is larger, causes out water suspension content to raise, and effluent characteristics are deteriorated The problem of.

Preferably, following relation is met between the first height L1 and the second height L2：2L2≤L1≤3L2, wherein, 150cm ≤L1≤300cm。

So, the current that can flow through the first flow channels drop to close to after the depth in pool bottom sludge face switch to heavy The center flow in shallow lake pond so that suspension rapid subsidence to pool bottom sludge layer.Meanwhile, effectively two-way can be intake mutual Separation, so as to form non-interfering double-deck flow field.

Preferably, in embodiment of the present utility model, the first height L1 is 240cm, and the first height L1 is the second height L2 3 times.

As shown in figure 1, in embodiment of the present utility model, the top of distributing channel riser 22 is less than the top of the first side wall 13 The distance between portion, the top of distributing channel riser 22 and the top of the first side wall 13 L3 meets following relation：30cm≤L3≤ 50cm。

By above-mentioned setting, the current in distribution channel can be avoided to overflow outside the pond body 10 of sedimentation basin.

Further, the top of distributing channel riser 22 is higher than the liquid level in distribution channel, so as to prevent in distribution channel Current are overflowed outside distribution channel, the flowing of current in influence pond body 10.

In embodiment of the present utility model, the first distributing hole 23 and the second distributing hole 24 are multiple.For convenience of processing, appoint The spacing L5 that the spacing L4 between two neighboring first distributing hole 23 that anticipates is all higher than between two the second distributing holes 24 of arbitrary neighborhood, And meet following relation：40cm≤L4≤100cm, 30cm≤L5≤80cm.

By above-mentioned setting, the current that more equably can be distributed along the second horizontal direction in distribution channel.While U-shaped stream Along journey distance than O shapes flow field along journey apart from short, the separative efficiency of suspension is low compared with O shapes flow field, therefore using between larger Away from L4, so that the ratio of the current of the first distributing hole 23 distribution is relatively small, the sedimentation effect of two lamellar fields is balanced.

Certainly, in unshowned alternate embodiment, between two neighboring first distributing hole 23 of an acceptable setting unit Spacing L4 be more than two neighboring second distributing hole 24 in part between spacing L5.

Alternatively, the first distributing hole 23 and the second distributing hole 24 are arranged at intervals to be multiple, and hole section is circular circle Hole.

Certainly, the first distributing hole 23 and the second distributing hole 24 can also be the rectangular opening of hole rectangular cross-section, the first water distribution The distributing hole 24 of hole 23 and second is respectively provided with one, and the first distributing hole 23 and the second distributing hole 24 extend along the second horizontal direction.

Preferably, in order to form uniform flow field in the second horizontal direction of sedimentation basin, arbitrary neighborhood two first is matched somebody with somebody Spacing L4 between water hole 23 is identical, and the spacing L5 between two the second distributing holes 24 of arbitrary neighborhood is identical.

Specifically, the spacing L4 between two neighboring first distributing hole 23 be 80cm, two neighboring second distributing hole 24 it Between spacing L5 be 50cm.

Certainly, the multiple spacing L4 formed between multiple first distributing holes 23 can be differed, multiple second distributing holes 24 Between multiple spacing L5 for being formed can also differ.

As shown in figure 1, being equipped with sparge pipe in the first distributing hole 23 and the second distributing hole 24, the diameter D of sparge pipe is met Following relation：4cm≤D≤10cm.The length of sparge pipe is identical with the thickness of distributing channel bottom wall 21.

Preferably, in embodiment of the present utility model, a diameter of 8cm of sparge pipe.

As shown in figure 1, in embodiment of the present utility model, the first exhalant canal 30 is by the 3rd side wall 15 and the 3rd side wall First bottom wall 31 of 15 connections and the first riser 32 being connected with the first bottom wall 31 are surrounded, the first bottom wall 31 and the first riser 32 Between there is angle, distributing channel 20 include being arranged on distributing channel bottom wall 21 on the first side wall 13 and with the phase of distributing channel bottom wall 21 Distributing channel riser 22 even, the second bottom wall 41 that the second exhalant canal 40 is connected by distributing channel riser 22, with distributing channel riser 22 And the second riser 42 being connected with the second bottom wall 41 is surrounded, there is angle between the second bottom wall 41 and the second riser 42.

By above-mentioned setting, the first exhalant canal 30 and the second exhalant canal 40 can reduce positioned at the both sides of pond body 10 Influencing each other for two lamellar field reclaimed water streams, while increasing the flow distance of current, makes suspension more efficiently settle.By second Exhalant canal 40 is arranged on distributing channel riser 22, simple in construction, is easy to construction.

Specifically, as shown in figure 1, distributing channel bottom wall 21 is arranged on the top of the first side wall 13, the first bottom wall 31 is vertically set Put on the top of the 3rd side wall 15.First bottom wall 31 is vertical with distributing channel riser 22 to be connected, the first riser 32 and the first bottom wall 31 Vertical connection, the second riser 42 is vertical with the second bottom wall 41 to be connected.

By above-mentioned setting, the first exhalant canal 30 and the second exhalant canal 40 are respectively positioned on the top of pond body 10, according to edge The minimum flow principle of journey resistance, can make current form upward flowing when flowing to the 3rd side wall 15, it is to avoid agitation pond The sludge at bottom.Meanwhile, the first exhalant canal 30 and the second exhalant canal 40 are rectangular recess, have angle of inclination with wall Trapezoidal groove or circular groove are compared, and clear water can be avoided to produce the flowing velocity along first level direction in flow process And flow to outside the first exhalant canal 30 and the second exhalant canal 40, it is ensured that clear water is along the first exhalant canal 30 and the second exhalant canal 40 reliably discharge outside sedimentation basin.

As shown in figure 1, in embodiment of the present utility model, the top of the first riser 32 is less than the top of the 3rd side wall 15, The top of second riser 42 is flushed with the top of the first riser 32.The top of first riser 32 is between the top of the 3rd side wall 15 Meet following relation apart from L6：90cm≤L6≤110cm.

By above-mentioned setting, water outlet current can be avoided to overflow outside sedimentation basin, while being less than the top of the second riser 42 The top of distributing channel riser 22, can prevent water outlet current from flowing into distribution channel.

Further, the top of the first riser 32 and the second riser 42 is less than 2~5cm of liquid level in sedimentation basin, so as to The clear water of upper flowing easily enters the first exhalant canal 30 and the second exhalant canal 40.

As depicted in figs. 1 and 2, in embodiment of the present utility model, sedimentation basin also includes being arranged on the first side wall 13 and pond Diversion division 16 in the junction of body bottom wall 12 and internally positioned cavity 11.Diversion division 16 have inclined surface, inclined surface with There is water conservancy diversion angle α, water conservancy diversion angle α meets following relation between pond body bottom wall 12：55°≤α≤65°.

By above-mentioned setting, on the one hand water conservancy diversion inclined-plane can reduce the turbulent fluctuation of current, by current and sludge to precipitation The middle part horizontal translocation in pond, on the other hand also makes the bottom of distribution channel and exhalant canal be not easy to accumulate sludge, consequently facilitating dirty The discharge of mud.

Preferably, as depicted in figs. 1 and 2, in embodiment of the present utility model, diversion division 16 is on the depth direction of pond body 10 Section be right-angled trapezium, water conservancy diversion angle α be 60 °.

As depicted in figs. 1 and 2, it also is provided with diversion division in the 3rd side wall 15 of sedimentation basin and the junction of pond body bottom wall 12 16。

As depicted in figs. 1 and 2, in embodiment of the present utility model, sedimentation basin also includes blowdown apparatus and is arranged on pond body The spoil disposal passage 50 in 10 outsides, blowdown apparatus is used to the sludge of sedimentation basin bottom draining into spoil disposal passage 50.

In above-mentioned setting, the sludge of sedimentation basin bottom can drain into spoil disposal passage 50 by blowdown apparatus, and logical from spoil disposal Road 50 is drained into follow-up sludge treatment equipment.

Specifically, spoil disposal passage 50 is surrounded by the 3rd bottom wall, the 3rd riser and the 3rd side wall 15, wherein, the 3rd bottom wall with 3rd side wall is vertically connected, and the 3rd riser is vertical with the 3rd bottom wall to be connected.The top of 3rd riser and the top of the 3rd side wall 15 Flush, the 3rd bottom wall is flushed with the first bottom wall 31.

Alternatively, blowdown apparatus can inhale mud scraper or airlift pump.Inhaling mud scraper can be across in pond body 10, back and forth Operation, is cleaned using suction nozzle in sedimentation basin bottom.Pumping or airlift pump can suction out the sludge of sedimentation basin bottom precipitation And spoil disposal passage 50 is discharged into by pipeline.

The existing precipitation position for outing rectangle sedimentation tank when entering only has a precipitation surface, it is desirable to increase sewage disposal Amount, then must accordingly increase the floor space of sedimentation basin, nervous sewage treatment facility building site or original pond in soil In the project that structural reform is made, this pond type will be greatly limited.

Sedimentation basin in embodiment of the present utility model is the rectangle sedimentation tank gone with each other all the time, by pond body bottom wall 12 and setting The first side wall 13, second sidewall 14, the 3rd side wall 15 and the 4th side wall sequentially connected on pond body bottom wall 12 and from beginning to end is constituted The rectangle pond body 10 of sedimentation basin.Distributing channel 20 is provided with the first side wall 13, distributing channel 20 includes being arranged on the first side wall 13 Distributing channel bottom wall 21 and the distributing channel riser 22 that is connected with distributing channel bottom wall 21, distributing channel bottom wall 21 is provided with the first water distribution Hole 23, the second distributing hole 24 and the first deflector 25 and the second deflector 26 extended straight down.Sedimentation basin also include by 3rd side wall 15 and the first bottom wall 31 being arranged on the 3rd side wall 15 and the structure of the first riser 32 being connected with the first bottom wall 31 Into the first exhalant canal 30, by distributing channel riser 22 and the second bottom wall 41 being arranged on distributing channel riser 22 and with second The second exhalant canal 40 that the second riser 42 that bottom wall 41 is connected is constituted.

By above-mentioned setting, the current flowed out from the second distributing hole 24 first flow straight down, then in the second deflector The horizontal velocity to the center flow of pond body 10 is produced under 26 guiding first, and the 3rd side wall 15 is flow to along first level direction When switch to rise flowing, reversely flow to the second exhalant canal 40 when rising towards sedimentation basin liquid level, form the stream of approximate O shapes .The current flowed out from the first distributing hole 23 first flow straight down, then drop under the guiding of the first deflector 25 and connect Switch to the center flow to sedimentation basin after the depth in nearly pool bottom sludge face, current flow to the 3rd side wall 15 along first level direction When switch to rise flowing, and flow to the first exhalant canal 30, form the flow field of approximate U shape.O shapes flow field and the current in U-shaped flow field Upper and lower two precipitation surfaces are formd in sedimentation basin, the surface loading of sedimentation basin is added, are not changing water-distributing gap flow In the case of, the sewage load of sedimentation basin can be doubled, and then can significantly be carried in the case of identical floor space Rise the surface loading and sewage load of sedimentation basin.

As can be seen from the above description, the utility model the above embodiments realize following technique effect：Pond body The first water-distributing gap and the second water-distributing gap connected with internal cavity, with internal cavity, be correspondingly arranged with the first water-distributing gap One exhalant canal, and the second exhalant canal being correspondingly arranged with the second water-distributing gap, current are from the first water-distributing gap and the second water distribution , can be in the vertical flat of pond body during mouth is respectively enterd in pond body and flowed to the first exhalant canal and the second exhalant canal Two layers of the circulation flow field from top to bottom set gradually is formed in face, so that the depth direction by sedimentation basin along pond body is divided into many two, Suspension in per lamellar field can be precipitated in this layer under gravity, so as to form two precipitation tables in sedimentation basin Face, so, in the case where not changing water-distributing gap flow, the sewage load of sedimentation basin can be improved one by two water-distributing gaps Again, and then in the case of identical floor space the surface loading and sewage load of sedimentation basin can be substantially improved.

It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.

It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating herein Or the order beyond those of description is implemented.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (15)

1. a kind of sedimentation basin, it is characterised in that including：

Pond body (10), the pond body (10) has internal cavity (11) and the multiple water distributions connected with the internal cavity (11) Mouthful, multiple water-distributing gap in the vertical directions are arranged at intervals；

At least one exhalant canal, the exhalant canal is arranged at intervals with the water-distributing gap on first level direction；

During exhalant canal flowing described in the current direction entered through multiple water-distributing gaps in the internal cavity (11), The multilayer circulation flow field from top to bottom set gradually is formed in the perpendicular of the pond body (10).

2. sedimentation basin according to claim 1, it is characterised in that the water-distributing gap includes the first water-distributing gap (27) and second Water-distributing gap (28), the exhalant canal includes the first exhalant canal (30) and the second exhalant canal (40), first water-distributing gap (27) and second water-distributing gap (28) is arranged at the first side of the pond body (10), first exhalant canal (30) is set In second side relative with first side of the pond body (10), second exhalant canal (40) is located at second water distribution Between mouth (28) and first exhalant canal (30), the water flowed out from first water-distributing gap (27) flows through the internal cavity (11) flowed out from first exhalant canal (30), the water flowed out from second water-distributing gap (28) flows through the internal cavity (11) flowed out from second exhalant canal (40).

3. sedimentation basin according to claim 2, it is characterised in that the pond body (10) includes pond body bottom wall (12) and set On the pond body bottom wall (12) and sequentially the first side wall (13) of head and the tail connection, second sidewall (14), the 3rd side wall (15) and 4th side wall, wherein, the first side wall (13) and the 3rd side wall (15) are oppositely arranged, the second sidewall (14) and institute State the 4th side wall to be oppositely arranged, the sedimentation basin also includes the distributing channel (20) being arranged on the first side wall (13), described First exhalant canal (30) is arranged on the 3rd side wall (15), and second exhalant canal (40) is arranged on the distributing channel (20) between first exhalant canal (30), first water-distributing gap (27) and second water-distributing gap (28) are arranged at On the distributing channel (20), the distributing channel (20), first exhalant canal (30) and second exhalant canal (40) are Extend along the second horizontal direction, wherein, there is angle between second horizontal direction and the first level direction.

4. sedimentation basin according to claim 3, it is characterised in that the distributing channel (20) is included along between first level direction Every the first flow channels and the second flow channels for setting and vertically extending, the outlet of first flow channels is formed First water-distributing gap (27), the outlet of second flow channels forms second water-distributing gap (28).

5. sedimentation basin according to claim 3, it is characterised in that the distributing channel (20) also includes being arranged on described first Distributing channel bottom wall (21) on side wall (13) and the distributing channel riser (22) being connected with the distributing channel bottom wall (21), it is described to match somebody with somebody Water channel riser (22) is upwardly extended relative to the distributing channel bottom wall (21), the first side wall (13), the distributing channel bottom wall (21) distribution channel is surrounded between distributing channel riser (22), the distributing channel bottom wall (21) is provided with spaced first water distribution Hole (23) and the second distributing hole (24), first distributing hole (23) connect with the first flow channels and the distribution channel, institute The second distributing hole (24) is stated to connect with the second flow channels and the distribution channel.

6. sedimentation basin according to claim 5, it is characterised in that the distributing channel (20) also includes being arranged on the water distribution On canal bottom wall (21) and the first deflector (25) and the second deflector (26) that extend downwardly, first deflector (25) is perpendicular The first upward height L1 of Nogata is more than the second height L2 of the second deflector (26) in the vertical direction, and described first matches somebody with somebody Water hole (23) is located between first deflector (25) and the first side wall (13), and second distributing hole (24) is located at institute State between the first deflector (25) and second deflector (26), the first side wall (13) and first deflector (25) Between form first flow channels, described is formed between first deflector (25) and second deflector (26) Two flow channels.

7. sedimentation basin according to claim 6, it is characterised in that between the first height L1 and the second height L2 Meet following relation：2L2≤L1≤3L2, wherein, 150cm≤L1≤300cm.

8. sedimentation basin according to claim 5, it is characterised in that the top of the distributing channel riser (22) is less than described the The distance between the top of side wall (13), the top of the distributing channel riser (22) and the top of the first side wall (13) L3 Meet following relation：30cm≤L3≤50cm.

9. sedimentation basin according to claim 5, it is characterised in that first distributing hole (23) and second distributing hole (24) it is multiple, spacing L4 between first distributing hole (23) of arbitrary neighborhood two is more than arbitrary neighborhood two described the Spacing L5 between two distributing holes (24), and meet following relation：40cm≤L4≤100cm, 30cm≤L5≤80cm.

10. sedimentation basin according to claim 5, it is characterised in that first distributing hole (23) and second water distribution Sparge pipe is equipped with hole (24), the diameter D of the sparge pipe meets following relation：4cm≤D≤10cm.

11. the sedimentation basin according to any one of claim 3 to 10, it is characterised in that first exhalant canal (30) The first bottom wall (31) for being connected by the 3rd side wall (15), with the 3rd side wall (15) and with first bottom wall (31) The first riser (32) of connection is surrounded, and has angle between first bottom wall (31) and first riser (32), described to match somebody with somebody Water channel (20) include being arranged on distributing channel bottom wall (21) on the first side wall (13) and with the distributing channel bottom wall (21) Connected distributing channel riser (22), second exhalant canal (40) is stood by the distributing channel riser (22), with the distributing channel The second bottom wall (41) and surrounded with the second riser (42) that second bottom wall (41) is connected, described second that plate (22) is connected There is angle between bottom wall (41) and second riser (42).

12. sedimentation basin according to claim 11, it is characterised in that the top of first riser (32) is less than described the The top of three side walls (15), the top of second riser (42) at the top of first riser (32) with flushing, and described first The top of riser (32) meets following relation to the distance between the top of the 3rd side wall (15) L6：90cm≤L6≤ 110cm。

13. the sedimentation basin according to any one of claim 3 to 10, it is characterised in that the sedimentation basin also includes setting In the junction of the first side wall (13) and the pond body bottom wall (12) and the diversion division in the internal cavity (11) (16), the diversion division (16) has inclined surface, between the inclined surface and the pond body bottom wall (12) there is water conservancy diversion to press from both sides Angle α, the water conservancy diversion angle α meets following relation：55°≤α≤65°.

14. the sedimentation basin according to any one of claim 3 to 10, it is characterised in that the sedimentation basin also includes blowdown Device and the spoil disposal passage (50) being arranged on the outside of the pond body (10), the blowdown apparatus are used for the sedimentation basin bottom Sludge drains into the spoil disposal passage (50).

15. a kind of sewage disposal system, including reaction unit and the sedimentation basin that is connected with the reaction unit, it is characterised in that The sedimentation basin is the sedimentation basin any one of claim 1 to 14.