CN218810758U - Sewage treatment dephosphorization pond - Google Patents

Abstract

The utility model relates to a sewage treatment device field, concretely relates to sewage treatment dephosphorization pond, including cell body, lifting shaft, actuating mechanism, pivot, row's mud ware and dosing pipe, inside settling zone, intercommunication district and the clear liquid district that includes mutual intercommunication from inside to outside in proper order of cell body. The separation liquid obtained by concentrating the sludge concentration tank and the separation liquid obtained by processing by the sludge press are firstly collected into the lifting well, the separation liquid is pumped to the settling zone from the lifting well and then reacts with the phosphorus removing agent to generate granular non-soluble substances, the sediment and the sludge are discharged into the sludge discharge tank under the rotation of the sludge discharge device and are pumped to the outside, and the reacted clear liquid is discharged through the settling zone, the communicating zone, the clear liquid zone and the overflow tank.

Description

Sewage treatment dephosphorization pond

Technical Field

The utility model relates to a sewage treatment device field, specificly relate to a sewage treatment dephosphorization pond.

Background

The domestic sewage treatment process comprises the following steps: former sewage through thick grid promotes the back through sewage elevator pump, through grid or sand filter, later get into the grit chamber, the sewage through sand-water separation gets into primary sedimentation tank, the play water of primary sedimentation tank gets into biological treatment equipment, including activated sludge process and biofilm process, biological treatment equipment's play water gets into secondary sedimentation tank, the play water of secondary sedimentation tank discharges or gets into tertiary treatment through the disinfection, the mud partly backward flow of secondary sedimentation tank to primary sedimentation tank or biological treatment equipment, partly gets into the concentrated pond of mud, later get into the sludge digestion tank, behind dehydration and drying equipment, mud is utilized at last. In the separated liquid obtained by concentrating the sludge concentration tank and the separated liquid obtained by treating the sludge press, the phosphorus content may exceed the standard and does not meet the standard of sewage discharge, so the separated liquid needs to be further dephosphorized, and the conventional dephosphorizing method comprises the following steps: the phosphorus removing agent is directly added into the secondary sedimentation tank to reduce the mud content in the sewage, and the treatment mode has the defects that the existence of the sludge can block the reaction of the phosphorus removing agent and the sewage, so that a large amount of phosphorus removing agent needs to be consumed, the cost is high, and the scheme is produced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a sewage treatment dephosphorization pond to solve the problem that provides in the background art.

In order to solve the technical problem, the utility model discloses a technical scheme as follows: the utility model provides a sewage treatment dephosphorization pond which characterized in that: including cell body, lift well, actuating mechanism, pivot, mud discharging device and dosing pipe, inside settling zone, intercommunication district and the clear liquid district that includes mutual intercommunication from inside to outside in proper order of cell body, the settling zone below is equipped with a mud discharging groove, clear liquid district top is equipped with an overflow launder, the lift well passes through sewage pipeline and the inside intercommunication of settling zone, actuating mechanism sets up in the settling zone top, the pivot sets up in settling zone central authorities, mud discharging device sets up in the settling zone bottom, the top of pivot is connected with actuating mechanism's output, the bottom is connected with mud discharging device, mud discharging device lateral wall is equipped with into mud hole, the bottom is equipped with the mud discharging hole, mud discharging hole and mud discharging groove intercommunication, the cell body bottom is equipped with the mud discharging pipe that communicates with mud discharging groove, the top is equipped with the delivery port that communicates with clear liquid district, the bottom of dosing pipe extends to inside the settling zone.

Preferably, a first annular wall and a second annular wall are arranged inside the tank body, the second annular wall is sleeved outside the first annular wall, the settling zone is located inside the first annular wall, the communication zone is located between the first annular wall and the second annular wall, and the clear liquid zone is located between the side wall of the tank body and the second annular wall.

Preferably, the top of first annular wall is equipped with first intercommunication mouth, second annular wall bottom is equipped with the second intercommunication mouth, settling zone and intercommunication district are through first intercommunication mouth intercommunication, intercommunication district and clear solution district are through second intercommunication mouth intercommunication.

Preferably, the overflow groove is fixedly arranged at the top of the second annular wall.

Preferably, the top of the clear liquid area is also provided with an overflow pipe, one end of the overflow pipe is communicated with the overflow groove, and the other end of the overflow pipe is communicated with a water outlet of the pool body.

Preferably, the mud discharging device comprises a triangular pipe and a disc, the circular pipe is arranged at the bottom of the triangular pipe, the mud inlet holes are formed in two side faces of the triangular pipe, and the mud discharging holes are formed in the disc.

Preferably, the sludge discharge groove is provided with an opening with the size matched with that of the disc, and the disc is arranged in the opening.

Preferably, the lift well includes the well body, stealthily dirty pump and sewage inlet tube, stealthily dirty pump sets up in well body bottom, well body top is located to the well lid, sewage inlet tube and the internal portion of well intercommunication, stealthily dirty pump passes through sewage pipeline and the inside intercommunication of settling zone.

Preferably, a valve is arranged on the sewage conveying pipeline.

As can be seen from the above description, the utility model provides a sewage treatment dephosphorization pond has following beneficial effect: the separation liquid obtained by concentrating the sludge concentration tank and the separation liquid obtained by processing by the sludge press are firstly collected into the lifting well, the separation liquid is pumped to the settling zone from the lifting well and then reacts with the phosphorus removing agent to generate granular non-soluble substances, the sediment and the sludge are discharged into the sludge discharge tank under the rotation of the sludge discharge device and are pumped to the outside, and the reacted clear liquid is discharged through the settling zone, the communicating zone, the clear liquid zone and the overflow tank.

Drawings

FIG. 1 is a schematic structural diagram of a sewage treatment dephosphorization tank.

Fig. 2 is a schematic structural diagram of the sludge discharge device.

Fig. 3 is a schematic diagram of the structure of the lift well.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in the figure, the utility model discloses sewage treatment dephosphorization pond, including cell body 1, lift well 2, actuating mechanism 3, pivot 4, sludge discharger 5 and dosing pipe 6, cell body 1 is inside from inside to outside includes the settling zone 11 of mutual intercommunication in proper order, intercommunication district 12 and clear liquid district 13, settling zone 11 below is equipped with a sludge discharge groove 14, clear liquid district 13 top is equipped with an overflow launder 15, lift well 2 passes through sewage pipeline 24 and 11 inside intercommunications in settling zone, actuating mechanism 3 sets up in settling zone 11 top, pivot 4 sets up in settling zone central authorities, sludge discharger 5 sets up in the settling zone bottom, the top of pivot 4 is connected with actuating mechanism 3's output, the bottom is connected with sludge discharger 5, sludge discharger 5 lateral wall is equipped with into mud hole 51, the bottom is equipped with mud discharge hole 52, sludge discharge hole 52 and sludge discharge groove 14 intercommunication, cell body 1 bottom is equipped with the sludge discharge pipe with sludge discharge groove 14 intercommunication, the top is equipped with the delivery port that clear liquid district 13 communicates, the bottom of dosing pipe 6 extends to settling zone 11 inside, actuating mechanism 3 is motor and sludge discharge, the speed reducer, pivot 4, the rotating speed reducer is rotatory. The mud pipe and the concentrated pond of 1 bottoms of cell body are connected, and dephosphorization pond position is higher than the concentrated pond, discharges silt to the concentrated pond under the action of gravity in, and the clear liquid of the delivery port exhaust at top flows back to the end of intaking of sewage treatment line.

The separation liquid obtained by concentrating the sludge concentration tank and the separation liquid obtained by processing by the sludge press are firstly collected into the lifting well 2, the separation liquid is pumped to the settling zone 11 from the lifting well 2 and then reacts with the phosphorus removing agent to generate granular non-soluble substances, under the rotation of the sludge discharger 5, the precipitate and sludge are discharged into the sludge discharge tank 14 and are further concentrated by discharging the sludge concentration tank through gravity, and the reacted clear liquid is discharged through the settling zone 11, the communicating zone 12, the clear liquid zone 13 and the overflow tank 15.

The inside of the tank body 1 is provided with a first annular wall 16 and a second annular wall 17, the second annular wall 17 is sleeved outside the first annular wall 16, the settling zone 11 is positioned in the first annular wall 16, the communicating zone 12 is positioned between the first annular wall 16 and the second annular wall 17, and the clear liquid zone 13 is positioned between the side wall of the tank body 1 and the second annular wall 17.

The top of the first annular wall 16 is provided with a first communication port 18, the bottom of the second annular wall 17 is provided with a second communication port 19, the settling zone 11 is communicated with the communicating zone 12 through the first communication port 18, and the communicating zone 12 is communicated with the clear liquid zone 13 through the second communication port 19.

The overflow groove 15 is fixedly arranged on the top of the second annular wall 17, and the overflow groove 15 is annular.

The top of the clear liquid region 13 is further provided with an overflow pipe 110, one end of the overflow pipe 110 is communicated with the overflow groove 15, and the other end is communicated with the water outlet of the tank body 1.

As shown in fig. 2, which is a schematic structural view of the sludge discharging device 5 in fig. 1 after rotating 90 degrees, the sludge discharging device 5 includes a triangular tube 53 and a circular disc 54, the circular tube is disposed at the bottom of the triangular tube 53, the sludge inlet 51 is disposed on two side surfaces of the triangular tube 53, and the sludge discharge 52 is disposed on the circular disc 54 and is communicated with the triangular tube 53. The triangular pipe 53 has two closed ends, hollow inside and communicated bottom with the sludge discharge hole 52, and during the rotation of the sludge discharger 5, the side wall of the sludge discharger contacts with sludge and sediments at the bottom of the settling zone 11, and the sediments enter the triangular pipe 53 and the sludge discharge tank 14 from the sludge inlet 51 and are finally discharged out of the tank body 1.

The trough 14 is provided with an opening sized to fit the disc 54, and the disc 54 is disposed within the opening.

The lift well 2 comprises a well body 21, a submersible sewage pump 22 and a sewage inlet pipe 23, the submersible sewage pump 22 is arranged at the bottom of the well body 21, the well cover is arranged at the top of the well body 21, the sewage inlet pipe 23 is communicated with the inside of the well body 21, and the submersible sewage pump 22 is communicated with the inside of the settling area 11 through a sewage conveying pipeline 24. The submersible sewage pump 22 is used for lifting the separation liquid in the lifting well 2 into the settling area 11, more than two submersible sewage pumps 22 can be arranged, and the sewage conveying pipeline 24 is provided with a valve 25.

The aforesaid is only a plurality of concrete implementation manners of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (9)

1. The utility model provides a sewage treatment dephosphorization pond which characterized in that: including cell body, lift well, actuating mechanism, pivot, mud discharging device and dosing pipe, inside settling zone, intercommunication district and the clear liquid district that includes mutual intercommunication from inside to outside in proper order of cell body, the settling zone below is equipped with a mud discharging groove, clear liquid district top is equipped with an overflow launder, the lift well passes through sewage pipeline and the inside intercommunication of settling zone, actuating mechanism sets up in the settling zone top, the pivot sets up in settling zone central authorities, mud discharging device sets up in the settling zone bottom, the top of pivot is connected with actuating mechanism's output, the bottom is connected with mud discharging device, mud discharging device lateral wall is equipped with into mud hole, the bottom is equipped with the mud discharging hole, mud discharging hole and mud discharging groove intercommunication, the cell body bottom is equipped with the mud discharging pipe that communicates with mud discharging groove, the top is equipped with the delivery port that communicates with clear liquid district, the bottom of dosing pipe extends to inside the settling zone.

2. The sewage treatment dephosphorization pond of claim 1, wherein: the inside first annular wall and the second annular wall that are equipped with of cell body, first annular wall outside is located to the second annular wall cover, the sedimentation zone is located first annular wall, the district that communicates is located between first annular wall and the second annular wall, clear liquid zone is located between cell body lateral wall and the second annular wall.

3. The sewage treatment dephosphorization pond of claim 2, wherein: the top of first annular wall is equipped with first intercommunication mouth, second annular wall bottom is equipped with the second intercommunication mouth, sedimentation zone and intercommunication district are through first intercommunication mouth intercommunication, intercommunication district and clear liquid district are through second intercommunication mouth intercommunication.

4. The sewage treatment dephosphorization pond of claim 2, wherein: the overflow groove is fixedly arranged at the top of the second annular wall.

5. The sewage treatment dephosphorization pond of claim 1, wherein: and the top of the clear liquid area is also provided with an overflow pipe, one end of the overflow pipe is communicated with the overflow groove, and the other end of the overflow pipe is communicated with a water outlet of the pool body.

6. The sewage treatment dephosphorization pond of claim 1, wherein: the mud discharging device comprises a triangular pipe and a disc, the disc is arranged at the bottom of the triangular pipe, mud inlet holes are formed in two side faces of the triangular pipe, and the mud discharging holes are formed in the disc.

7. The sewage treatment dephosphorization pond of claim 6, wherein: the mud discharging groove is provided with an opening matched with the disc in size, and the disc is arranged in the opening.

8. The sewage treatment dephosphorization pond of claim 1, wherein: the lift well includes the well body, stealthily dirty pump and sewage inlet tube, stealthily dirty pump sets up in well body bottom, well body top lid is equipped with the well lid, sewage inlet tube and the internal portion intercommunication of well, stealthily dirty pump passes through sewage pipeline and the inside intercommunication of settling zone.

9. The sewage treatment dephosphorization pond of claim 1, wherein: and a valve is arranged on the sewage conveying pipeline.

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