CN206375723U - The activated sludge settler being placed in aeration tank - Google Patents

Abstract

The utility model is related to technical field of sludge treatment, disclose a kind of activated sludge settler being placed in aeration tank, it is the precipitation cone cylinder and collection mud cone cylinder of opening including upper and lower side, precipitation cone cylinder and collection mud cone cylinder are inverted, cone cylinder is precipitated located at the top of collection mud cone cylinder, and the lower port of precipitation cone cylinder stretches into the upper port of collection mud cone cylinder, and the mixed liquor passage passed through for aeration mixed liquor is formed between precipitation cone cylinder and collection mud cone cylinder；The thin inflator that two ends are opening is provided with precipitation cone cylinder, dredge the internal face of inflator and limited jointly with precipitating the internal face of cone cylinder with precipitating the internal precipitate region that the lower port of cone cylinder is connected, the internal face for dredging the outside wall surface and precipitation cone cylinder of inflator limits outside precipitation zone jointly, dredges the separating liquid passage for being formed between the lower end of inflator and the internal face of precipitation cone cylinder and connecting internal precipitate region and outside precipitation zone.Second pond need not be built again using the utility model, shortens the sedimentation time, improve efficiency, reduction investment.

Description

The activated sludge settler being placed in aeration tank

Technical field

The utility model is related to technical field of sludge treatment, and more particularly to a kind of activated sludge being placed in aeration tank sinks Shallow lake device.

Background technology

Conventional biochemical wastewater treatment mode is to use to first pass through after the Air Exposure of aeration tank in the prior art, enters back into two The technique that heavy pond carries out precipitation separation.Microorganism is suspended in seizure organic pollution in water in aeration tank and is degraded or inhaled Attached, the aeration mixed liquor after aeration tank is handled is precipitated into follow-up second pond, and separation is formed positioned at upper after precipitation The supernatant layer in portion and the pollution layer positioned at bottom, wherein, supernatant layer thus becomes clean hygiene, so as to be able to row up to standard Put.

In the prior art, aeration tank is built respectively with second pond, and investment is high, and floor space is big；Conventional second pond is column type Or cartridge type, Chi Rong great, the required residence time will generally reach more than 2h；Because conventional second pond pond holds greatly, the residence time is long, It is difficult to form equipment；Aeration mixed liquor completes mud-water separation while precipitation in second pond, the gas floating pair isolated Sedimentation effect can be impacted, and the sedimentation time is lengthened；Only one of which bottom surface is precipitated in internal precipitate region, makes space Utilization ratio is low.In the prior art, the sedimentation time needed for being precipitated using second pond is long, and efficiency is low, and investment is big, it is difficult to shape Forming apparatus.

Utility model content

(1) technical problem to be solved

The purpose of this utility model is to provide a kind of activated sludge settler being placed in aeration tank, to solve existing skill Second pond is needed to use to carry out mud-water separation, it is necessary to build second pond again the mixed liquor of aeration tank in art, the sedimentation time is long, effect Rate is low, the problem of investing high.

(2) technical scheme

In order to solve the above-mentioned technical problem, the utility model provides a kind of activated sludge precipitation dress being placed in aeration tank Put, including upper and lower side is the precipitation cone cylinder and collection mud cone cylinder of opening, the precipitation cone cylinder and collection mud cone cylinder are inverted, described heavy Shallow lake cone cylinder is located at the top of the collection mud cone cylinder, and the lower port of the precipitation cone cylinder stretches into the upper port for collecting mud cone cylinder, The mixed liquor passage passed through for aeration mixed liquor is formed between the precipitation cone cylinder and collection mud cone cylinder；It is provided with the precipitation cone cylinder Two ends are the thin inflator of opening, and the internal face of the thin inflator and the internal face of precipitation cone cylinder are limited and precipitation cone cylinder jointly Lower port connection internal precipitate region, the internal face of the outside wall surface of the thin inflator and precipitation cone cylinder limits outside jointly Precipitation zone, forms between the lower end of the thin inflator and the internal face of the precipitation cone cylinder and connects internal precipitate region and outside The separating liquid passage of precipitation zone.

Wherein, in addition to water leg and drainpipe, the water leg is in the precipitation cone cylinder, and externally-located precipitation Region；The drainpipe is connected with the water leg.

Wherein, in addition to aqueduct, the drainpipe is connected by aqueduct with the water leg；The aqueduct is along institute The inwall for stating precipitation cone cylinder extends through the separating liquid passage and stretches out the lower port and the drainpipe of the precipitation cone cylinder Connection.

Wherein, the water leg is provided with the crest of weir that catchments.

Wherein, the water leg is annular groove, and the water leg is around the periphery located at the thin inflator.

Wherein, the aqueduct is a plurality of, the circumferential uniform row of madial wall of a plurality of aqueduct along the precipitation cone cylinder Row；The drainpipe is provided with ring segment, and the ring segment is connected with a plurality of aqueduct respectively.

Wherein, the upper port of the thin inflator is concordant with the upper port of the precipitation cone cylinder.

Wherein, in addition to discharge pipeline, the discharge pipeline is connected with the lower port of the collection mud cone cylinder.

Wherein, the thin inflator also tapered structure, and the thin inflator forward direction is arranged at described precipitate in cone cylinder.

Wherein, the precipitation cone cylinder, thin inflator and collection mud cone cylinder are taper cone barrel.

(3) beneficial effect

The activated sludge settler being placed in aeration tank that the utility model is provided, including upper and lower side are the heavy of opening Shallow lake cone cylinder and collection mud cone cylinder, precipitation cone cylinder are inverted with collection mud cone cylinder, and precipitation cone cylinder precipitates cone located at the top of collection mud cone cylinder The lower port of cylinder stretches into the upper port of collection mud cone cylinder, precipitates and is formed between cone cylinder and collection mud cone cylinder for mixing that aeration mixed liquor passes through Close liquid passage；The thin inflator that two ends are opening is provided with precipitation cone cylinder, the internal face and the internal face of precipitation cone cylinder of inflator is dredged Limit jointly and precipitate the internal precipitate region that the lower port of cone cylinder is connected, dredge the inwall of the outside wall surface and precipitation cone cylinder of inflator Face limits outside precipitation zone jointly, dredges and is formed between the lower end of inflator and the internal face of precipitation cone cylinder by internal precipitate area Domain and the separating liquid passage of outside precipitation zone.In use, the present apparatus is positioned in aeration tank, muddy water is completed in aeration tank Separation, it is not necessary to build second pond again, shortens the sedimentation time, improves efficiency, reduction investment.

Brief description of the drawings

Fig. 1 is the top view of the activated sludge settler embodiment of the present utility model being placed in aeration tank；

Fig. 2 is the left view of the activated sludge settler embodiment of the present utility model being placed in aeration tank；

Fig. 3 for the activated sludge settler embodiment of the present utility model being placed in aeration tank longitudinal sectional view (i.e. Along the sectional view in A-A directions in Fig. 2).

In figure, 1：Precipitate cone cylinder；2：Dredge inflator；3：Water leg；4：Aqueduct；5：Drainpipe；6：Collect mud cone cylinder；7：Spoil disposal Pipe；8：Internal precipitate region；9：Outside precipitation zone；31：Catchment crest of weir；51：Ring segment.

Embodiment

With reference to the accompanying drawings and examples, embodiment of the present utility model is described in further detail.Below Example is used to illustrate the utility model, but is not limited to scope of the present utility model.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

As shown in Figures 1 to 3, the one of a kind of activated sludge settler being placed in aeration tank of the present utility model is shown Individual embodiment, including upper and lower side are the precipitation cone cylinder 1 and collection mud cone cylinder 6 of opening.Precipitation cone cylinder 1 and collection mud cone cylinder 6 are inverted, I.e. precipitation cone cylinder 1 and collection mud cone cylinder 6 are that upper port diameter is more than lower port diameter.It should be noted that cone cylinder is taper cone barrel Or pyramid cylinder, when cone cylinder is pyramid cylinder, the diameter should refer to equivalent diameter, such as circumscribed circle or inscribed circle.Precipitation cone Cylinder 1 is located at the top of collection mud cone cylinder 6, and the lower port of precipitation cone cylinder 1 stretches into the upper port for collecting mud cone cylinder 6, precipitation cone cylinder 1 and collection The mixed liquor passage passed through for aeration mixed liquor is formed between mud cone cylinder 6.Specifically, the outer surface of precipitation cone cylinder 1 and collection mud cone There is gap, the gap forms mixed liquor passage between the upper port of cylinder 6.It is preferred that, precipitate the lower port diameter and collection of cone cylinder 1 The upper port diameter ratio of mud cone cylinder 6 is 2/3~4/5.The thin inflator 2 that two ends are opening is provided with precipitation cone cylinder 1, inflator is dredged 2 internal face is limited with precipitating the internal precipitate region 8 that the lower port of cone cylinder 1 is connected jointly with precipitating the internal face of cone cylinder 1, The internal face for dredging the outside wall surface and precipitation cone cylinder 1 of inflator 2 limits outside precipitation zone 9 jointly, dredges lower end and the precipitation of inflator 2 The separating liquid passage of connection internal precipitate region 8 and outside precipitation zone 9 is formed between the internal face of cone cylinder 1.It is preferred that, precipitation The center line of cone cylinder 1, thin inflator 2 and collection mud cone cylinder 6 is point-blank.

Also include discharge pipeline 7, for discharging sludge, discharge pipeline 7 is connected with collecting the lower port of mud cone cylinder 6.Specifically, spoil disposal One end of pipe 7 is connected with collecting the lower port of mud cone cylinder 6, the other end of discharge pipeline 7 and the external connection of aeration tank.

Device is integrally placed directly within aeration tank, wherein, the upper port of precipitation cone cylinder is higher than the liquid level of aeration tank.Collect mud cone The upper port of cylinder 7 is higher than the lower port for precipitating cone cylinder 1, so that aeration mixed liquor is between precipitation cone cylinder 1 and collection mud cone cylinder 6 Mixed liquor passage from top to bottom enters below the lower port of precipitation cone cylinder 1, in this course, a large amount of gases in mixed liquor by Separate, be upwardly into aeration tank in light specific gravity, remaining a small amount of air is rolled over down and then up in company with aeration mixed liquor In the internal precipitate region 8 for rotating into the bottom of precipitation cone cylinder 1, internally in precipitation zone 8, the overwhelming majority in aeration mixed liquor Gas is separated and risen with muddy water, is drained into by the upper port for dredging inflator 2 in air, the supernatant of separation is then by precipitation cone cylinder Separating liquid passage between 1 and thin inflator 2 rises to precipitation cone cylinder 1 and thin inflator 2 is constituted in outside precipitation zone 9, and sludge Precipitate, and skidded off by the base opening of precipitation cone cylinder 1 on the internal face of the bottom of precipitation cone cylinder 1, into collection mud cone cylinder 6, from collection mud The lower port discharge of cone cylinder 6, sludge is slipped into collection mud cone cylinder 6 by the lower port of precipitation cone cylinder 1, and further in collection mud cone cylinder 6 Concentration, when needing spoil disposal, opens the road of discharge pipeline 7, sludge is discharged to outside.Supernatant can discharge precipitation cone in many ways Cylinder, for example, can be extracted out using water pump.

One specific embodiment, precipitates back cut diameter 2.4m, the high 3m of stack shell of cone cylinder, cylinder internal volume is about 6m³.To stop Time 15min is calculated, and theoretical treatment water is 24m³/ h, 576m³/d；One day handled 10,000 m³/ d sewage plant, by the institute of example 1 Specification is stated, in theory using 18 sets of equipments, you can meet precipitation demand.

The utility model, which precipitates cone cylinder and collected in the case that mud cone cylinder uses pyramidal structure, same desilting area, can reduce one More than half Chi Ronghe residence times；Directly it is installed in when the present apparatus is used in aeration tank, it is not necessary to separately set second pond, has saved base Build investment；Precipitation cone cylinder be divided into above and below two regions, aeration mixed liquor in gas separated in lower interior portion precipitation zone 8, and Discharged by dredging inflator, the mixed liquor isolated floats to outside precipitation zone 9 by separating liquid passage, outside precipitation zone 9 is sunk The influence separated during shallow lake without gas, makes precipitated form more they tend to stabilization, preferably ensures outlet effect；Precipitate below cone cylinder as collection Mud cone cylinder, aeration mixed liquor has mixed liquor passage between the two to enter precipitation cone cylinder, forces mixed liquor entering internal precipitate Moved downwards before region 8, the air in mixed liquor into internal precipitate region 8 is greatly reduced, and collection mud cone cylinder Below the lower port of precipitation cone cylinder, it also avoid aeration mixed liquor and internal precipitate area directly impacted by the lower port of precipitation cone cylinder Domain 8, so that quiet heavy effect is ensured in settling zone.

The also tapered structure of inflator 2 is dredged in the present embodiment, and dredges the forward direction of inflator 2 and is arranged in precipitation cone cylinder 1.Precipitate cone cylinder 1 uses pyramidal structure, forms precipitation inclined-plane, and the inside of precipitation cone cylinder 1, which is set, dredges inflator 2, and it is the positive taper set to dredge inflator 2 Cylinder, dredges the outer surface of inflator 2 also simultaneously as the precipitation surface of outside precipitation zone 9, so that desilting area further increases, sinks Distance of forming sediment further shortening, so that sedimentation effect is greatly improved, it is possible to the sedimentation time is greatly shortened.Further, Cone cylinder 1 is precipitated, inflator 2 is dredged and collects mud cone cylinder 6 and uses circular cone barrel structure.

Equipment is directly installed in aeration tank, as long as 15 minutes or so residence time of the mixed liquor in equipment, to aeration Pool volume has not significant impact, thus may insure the biology aerobic biochemical residence time.

Mud-water separation is completed in the internal precipitate region 8 of precipitation cone cylinder 1, it is to avoid gas is precipitated to the outside of precipitation cone cylinder 1 The influence of the separating effect in region 9, it is ensured that effluent characteristics.

Because the residence time is short, volume of equipment significantly reduces, and can form equipment, is easy to processing to transport, and improve Device fabrication precision.

It is pyramidal structure to precipitate cone cylinder 1, collection mud cone cylinder 6, and barrel is smooth surface, without different shape raised structures, Thus it is easy to multiple devices to merge transport (cylinder superposition), without cutting or welding on cylinder when equipment is assembled at the scene, protects The smooth of drum surface is demonstrate,proved, to ensure operational effect.

Further, for convenience in discharge supernatant, the activated sludge settler being placed in aeration tank also includes collection Tank 3 and drainpipe 5, water leg 3 is in precipitation cone cylinder 1, and the externally-located precipitation zone 9 of water leg 3；Drainpipe 5 and collection Tank 3 is connected.Supernatant enters outside precipitation zone 9 by supernatant passage, wherein a small amount of sludge carried secretly continues in precipitation Precipitated on cone cylinder inwall and the outer wall of thin inflator 2, supernatant of the sludge precipitated between precipitation cone cylinder 1 and thin inflator 2 leads to Road is snapped down to settling zone lower half, and continues to be snapped down to the lower port of precipitation cone cylinder 1.Supernatant enter water leg 3, and via with The discharge precipitation cone cylinder 1 of drainpipe 5 that water leg 3 is connected, and further discharge aeration tank.Intake for convenience, water leg 3 is provided with Catchment crest of weir 31.

Further, the activated sludge settler being placed in aeration tank also includes aqueduct 4, and drainpipe 5 passes through diversion Pipe 4 is connected with water leg 3；Inwall of the aqueduct 4 along precipitation cone cylinder 1 extends through separating liquid passage and stretches out precipitation cone cylinder 1 Lower port is connected with drainpipe 5.Aqueduct 4 is drawn from the lower port of precipitation cone cylinder 1, it is not necessary to opened up in precipitation cone cylinder 1 Through hole, is convenient to manufacture, transports, and improves security performance.It is preferred that, water leg 3 is annular groove, and water leg 3 is around located at thin The periphery of inflator 2.Aqueduct 4 is a plurality of, and madial wall of a plurality of aqueduct 4 along precipitation cone cylinder 1 is circumferentially evenly distributed；Drainpipe 6 Provided with ring segment 51, ring segment 51 is connected with a plurality of aqueduct 4 respectively, it is not necessary to add bypass pipe, and processing transport is easier, As illustrated, in the present embodiment, aqueduct 4 is preferably but not limited to use 4.

Flexible pipe is used using drainpipe 5 and aqueduct 4, precipitation cone cylinder 1, draining are drawn by the lower port of precipitation cone cylinder 1 Pipe forms annular tube structure on the outside of the lower port of precipitation cone cylinder 1, does not set the obstacles such as bypass branch pipe in barrel, barrel is use up can Can be smooth, and it is easy to scale installation and transportation；

It is preferred that, the upper port for dredging inflator 2 is not higher than the upper port of precipitation cone cylinder 1.

In work progress, collection mud cone cylinder 6 is first set up, precipitation cone cylinder 1 is installed in collection mud cone cylinder, in precipitation cone cylinder successively Install and dredge inflator 2 and water leg 3.During installation, collection mud cone cylinder 6 and precipitation cone cylinder 1 are respectively adopted pylon and are fixed, and dredge inflator 2 Installed with water leg 3 using the steelframe for being arranged on the precipitation madial wall of cone cylinder 1.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model Protection domain within.

Claims (10)

1. a kind of activated sludge settler being placed in aeration tank, it is characterised in that：It is the precipitation of opening including upper and lower side Cone cylinder and collection mud cone cylinder, the precipitation cone cylinder and collection mud cone cylinder are inverted, and the precipitation cone cylinder is upper located at the collection mud cone cylinder Side, and the lower port of the precipitation cone cylinder stretches into the upper port for collecting mud cone cylinder, between the precipitation cone cylinder and collection mud cone cylinder Form the mixed liquor passage passed through for aeration mixed liquor；The thin inflator that two ends are opening is provided with the precipitation cone cylinder, it is described Dredge the internal face of inflator and limited jointly with precipitating the internal face of cone cylinder with precipitating the internal precipitate area that the lower port of cone cylinder is connected Domain, the internal face of the outside wall surface and precipitation cone cylinder of the thin inflator is limited under outside precipitation zone, the thin inflator jointly Hold the separating liquid passage for being formed between the internal face of the precipitation cone cylinder and connecting internal precipitate region and outside precipitation zone.

2. the activated sludge settler as claimed in claim 1 being placed in aeration tank, it is characterised in that：Also include water leg And drainpipe, the water leg is in the precipitation cone cylinder, and externally-located precipitation zone；The drainpipe catchments with described Groove is connected.

3. the activated sludge settler as claimed in claim 2 being placed in aeration tank, it is characterised in that：Also include diversion Pipe, the drainpipe is connected by aqueduct with the water leg；Inwall of the aqueduct along the precipitation cone cylinder is extended through Cross the separating liquid passage and stretch out the lower port for precipitating cone cylinder and be connected with the drainpipe.

4. the activated sludge settler as claimed in claim 2 being placed in aeration tank, it is characterised in that：The water leg is set There is the crest of weir that catchments.

5. the activated sludge settler as claimed in claim 3 being placed in aeration tank, it is characterised in that：The water leg is Annular groove, the water leg is around the periphery located at the thin inflator.

6. the activated sludge settler as claimed in claim 5 being placed in aeration tank, it is characterised in that：The aqueduct is A plurality of, madial wall of a plurality of aqueduct along the precipitation cone cylinder is circumferentially evenly distributed；The drainpipe is provided with ring segment, institute Ring segment is stated to be connected with a plurality of aqueduct respectively.

7. the activated sludge settler as claimed in claim 1 being placed in aeration tank, it is characterised in that：The thin inflator Upper port is concordant with the upper port of the precipitation cone cylinder.

8. the activated sludge settler as claimed in claim 1 being placed in aeration tank, it is characterised in that：Also include spoil disposal Pipe, the discharge pipeline is connected with the lower port of the collection mud cone cylinder.

9. the activated sludge settler as claimed in claim 1 being placed in aeration tank, it is characterised in that：The thin inflator Tapered structure, and the thin inflator forward direction is arranged at described precipitate in cone cylinder.

10. the activated sludge settler as claimed in claim 9 being placed in aeration tank, it is characterised in that：The precipitation cone Cylinder, thin inflator and collection mud cone cylinder are taper cone barrel.