CN212998548U

CN212998548U - Scum spraying device for water distribution tank of secondary sedimentation tank and secondary sedimentation tank

Info

Publication number: CN212998548U
Application number: CN202020973938.2U
Authority: CN
Inventors: 李佐规; 黄建锋; 陈圣; 黎卫; 何文礼; 吴杜
Original assignee: Changsha Economic And Technological Development Zone Water Purification Engineering Co ltd
Current assignee: Changsha Economic And Technological Development Zone Water Purification Engineering Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-04-20
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses a two heavy ponds distributing channel dross spray set and two heavy ponds, spray set includes the transport that lays along the direction of delivery of distributing channel and is responsible for, with the transport branch pipe of carrying the person in charge intercommunication, locate the nozzle that the mouth of pipe department of carrying the branch pipe was used for spraying towards the surface of water of distributing channel and with carry the person in charge be used for with the pumping installations that the water pump sent to carrying in being responsible for of intercommunication, carry the branch pipe towards the surface of water extension of distributing channel, carry the mouth of pipe of branch pipe to be located the top of the surface of water, a plurality of transport branch pipes are arranged along carrying the direction of delivery interval of being responsible for. The utility model discloses a two heavy pond distributing groove dross spray set lays a plurality of delivery branch pipes through carrying the person in charge along the direction of delivery interval to the nozzle that the mouth of pipe department installation that is used for towards the distributing groove of water sprays at the delivery branch pipe, thereby the foam that utilizes the water that sprays sewage in with the distributing groove breaks up, and increased the mobility of the surface of water, thereby avoided grease, foam, mud and impurity to mix and form the dross and pile up at the surface of water.

Description

Scum spraying device for water distribution tank of secondary sedimentation tank and secondary sedimentation tank

Technical Field

The utility model relates to a sewage treatment device field especially relates to a two heavy pond distributing channel dross spray set and two heavy ponds.

Background

During sewage treatment, sewage in the oxidation ditch flows into a water distribution tank of a secondary sedimentation tank, the sewage flows into a sedimentation tank from the bottom of the water distribution tank to be sedimentated and flows along the water distribution tank, the sewage in the oxidation ditch is treated by activated sludge to obtain sewage mixed with the sludge, organic matters in the sewage are respectively and generate a large amount of grease and foam, a part of grease is enriched in the sludge, and the flowing speed of the sewage along the water distribution tank is gradually reduced, so that the grease and the foam drive a part of sludge to float on the water surface and gradually accumulate in a downstream area of the water distribution tank to form a large amount of scum, a large amount of time is spent by cleaning personnel for cleaning, odor can be generated, the surrounding environment is polluted, and the health of the surrounding personnel is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a two heavy pond distributing channel dross spray set and two heavy ponds to solve the accumulational technical problem of dross in the distributing channel in two heavy ponds at present.

According to an aspect of the utility model, a two heavy ponds join in marriage basin dross spray set is provided, a dross is piled up in the join in marriage basin for preventing two heavy ponds, spray set includes the transport person in charge who lays along the direction of delivery of joining in marriage the basin, with carry the delivery branch pipe of being responsible for the intercommunication, locate the nozzle that is used for of the mouth of pipe department of delivery branch pipe to spray towards the surface of water of joining in charge basin and with carry the pumping installations who is used for delivering the water pump to the transport person in charge of the intercommunication, the delivery branch pipe extends towards the surface of water of joining in charge the basin, the mouth of pipe of delivery branch pipe is located the top of the surface of water, a plurality of delivery branch pipes.

Further, the pipe orifices of the delivery branch pipes face the same direction as the flowing direction of the sewage in the water distribution tank.

Furthermore, the nozzle is arranged at the pipe orifice of the output branch pipe, the nozzle orifice of the nozzle is inclined downwards, and the included angle between the direction of the nozzle orifice and the water surface of the water distribution tank is 30-60 degrees.

Further, the arrangement distance of the conveying branch pipes which are farther away from the water inlet of the water distribution tank on the conveying main pipe is smaller, and the arrangement distance of the conveying branch pipes which are closer to the water inlet of the water distribution tank is larger.

Furthermore, the pumping device is arranged at the bottom of a water outlet groove of the secondary sedimentation tank, so that the clear water after sedimentation and separation in the water outlet groove is pumped into the main conveying pipe.

Further, the pumping means is mounted close to the area of the distribution tank where the water flow velocity is slowest.

Further, the arrangement distance of the conveying branch pipes is 2-9 meters.

Furthermore, the main conveying pipe is erected on the wall of the water distribution tank along the conveying direction of the water distribution tank, or the main conveying pipe is embedded in the wall of the water distribution tank along the conveying direction of the water distribution tank.

Furthermore, a control valve is arranged on the delivery branch pipe.

According to another aspect of the invention, the invention also provides a secondary sedimentation tank, which comprises the scum spraying device of the secondary sedimentation tank water distribution tank.

The utility model discloses following beneficial effect has:

the utility model discloses a two heavy ponds distributing channel dross spray set, lay through the direction of delivery along the distributing channel and carry the person in charge, and deliver to the transport person in charge through the water pump among the pumping installations with water supply system, lay a plurality of delivery branch pipes through carrying the person in charge along the direction of delivery interval, and the nozzle that the mouth of pipe department installation that is used for towards the surface of water spraying of distributing channel at the delivery branch pipe, thereby the foam that utilizes the water that sprays to break up the sewage in the distributing channel, and the mobility of the surface of water has been increased, thereby avoid the grease, the foam, mud and impurity mix and form the dross and pile up at the surface of water.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural view of a scum spraying device in a distributing tank of a secondary sedimentation tank according to a preferred embodiment of the present invention.

Illustration of the drawings:

100. a secondary sedimentation tank; 101. a water distribution tank; 102. a water outlet groove; 103. a sedimentation tank; 104. a suction dredge; 105. a scum baffle; 106. a slag discharge hopper; 107. a slag discharge well; 108. a slag discharge flushing device; 11. a main conveying pipe; 12. a delivery branch pipe; 13. a pumping device.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.

As shown in fig. 1, the scum spraying apparatus of the distribution tank of the secondary sedimentation tank of this embodiment is used for preventing scum from being accumulated in the distribution tank 101, and the spraying apparatus includes a main delivery pipe 11 arranged along the delivery direction of the distribution tank 101, a branch delivery pipe 12 communicated with the main delivery pipe 11, a nozzle arranged at the pipe orifice of the branch delivery pipe 12 and used for spraying towards the water surface of the distribution tank 101, and a pumping apparatus 13 communicated with the main delivery pipe 11 and used for pumping water into the main delivery pipe 11, wherein the branch delivery pipe 12 extends towards the water surface of the distribution tank 101, the pipe orifice of the branch delivery pipe 12 is located above the water surface, and the branch delivery pipes 12 are arranged at intervals along the delivery direction of the main delivery pipe 11. The utility model discloses a two heavy 100 distributing flume 101 dross spray set in pond, lay through the direction of delivery along distributing flume 101 and carry and be responsible for 11, and deliver to the water pump in the water supply system through pumping installations 13 and carry and be responsible for 11, through laying a plurality of delivery branch pipes 12 along the direction of delivery interval on carrying and being responsible for 11, and the nozzle that the mouth of pipe department installation that is used for towards distributing flume 101 at delivery branch pipe 12 sprays, thereby the foam that utilizes the water that sprays to break up the sewage in distributing flume 101, and the mobility of the surface of water has been increased, thereby avoid the grease, the foam, mud and impurity mix and form the dross and pile up at the surface of water.

The pipe orifice of the delivery branch pipe 12 is oriented in the same direction as the flow direction of the sewage in the distribution tank 101. The water sprayed by the conveying branch pipe 12 is prevented from falling into the water distribution tank 101 to splash sewage mixed with sludge so as to block the pipeline opening of the conveying branch pipe 12. The nozzle is arranged at the pipe orifice of the output branch pipe, the nozzle orifice of the nozzle inclines downwards, and the included angle between the direction of the nozzle orifice and the water surface of the water distribution groove 101 is 30-60 degrees. In this embodiment, the nozzle orifice is in the shape of a straight line. The linear nozzle of the nozzle is parallel to the width direction of the water distribution tank 101, and the spraying range is wider. Alternatively, the delivery branch pipe 12 includes a branch pipe arranged on the delivery main pipe 11 in the width direction of the distribution tank 101 and a plurality of nozzles arranged in the delivery direction of the branch pipe on the branch pipe for spraying toward the water surface of the distribution tank 101. Optionally, the distance between the nozzle and the water surface is 0.1-0.3 meters. The splashing of the sewage caused by the fact that the nozzle is too close to the water surface is avoided. The problem that the sprayed water cannot break up the foam in the sewage due to the fact that the spray nozzle is too far away from the water surface is avoided.

The smaller the arrangement pitch of the branch pipes 12 in the region of the main pipe 11 which is farther from the water inlet of the distribution tank 101, the larger the arrangement pitch of the branch pipes 12 which is closer to the water inlet of the distribution tank 101. Scum build-up tends to occur due to slower water flow velocities in areas of the distribution tank 101 that are further from the inlet. By providing more delivery legs 12 in areas with slower water flow rates and fewer delivery legs 12 in areas with faster water flow rates, better distribution and utilization of energy is achieved and scum build-up in areas with slower water flow rates is better avoided. In the embodiment, the arrangement distance of the conveying branch pipes 12 is 2-9 meters. The distribution pitch of the branch pipes 12 in the upstream area of the distribution tank 101 is 2 m. The distribution interval of the branch pipes 12 in the midstream region of the distribution tank 101 is 4 m. The distribution pitch of the branch pipes 12 in the downstream area of the distribution tank 101 was 9 m.

The pumping device 13 is installed at the bottom of the outlet tank 102 of the secondary sedimentation tank 100, so as to pump the clear water separated by sedimentation in the outlet tank 102 into the main delivery pipe 11. The clear water in the water distribution tank 101 of the secondary sedimentation tank 100 is effectively utilized without providing clear water by other water supply systems. The pumping means 13 is mounted close to the region of the distribution tank 101 where the water flow velocity is the slowest. Since the flow velocity and pressure of the water flow in the main delivery pipe 11 are lower as the distance of delivery is longer. By installing the pumping device 13 at the bottom of the water outlet tank 102 of the secondary sedimentation tank 100 and corresponding to the region with the slowest water flow speed in the water distribution tank 101, the water flow speed in the region closer to the pumping device 13 in the water distribution tank 101 is lower, and then the water flow with higher flow speed and pressure is sprayed to the region with the lower water flow speed through the main delivery pipe 11, so that the energy is better distributed and utilized, and scum accumulation in the region with the slowest water flow speed is better avoided. In this embodiment, the water distribution tank 101 has a ring shape, and the pumping device 13 is installed at a position opposite to the water inlet of the water distribution tank 101.

Alternatively, the main conveying pipe 11 is erected on a wall of the distribution tank 101 in the conveying direction of the distribution tank 101. The main conveyor pipe 11 is easy to maintain. Alternatively, the main transport pipe 11 is buried in the wall of the distribution tank 101 along the transport direction of the distribution tank 101. Is beneficial to prolonging the service life of the main conveying pipe 11. In this embodiment, the delivery manifold 12 is provided with a control valve. The amount of water sprayed from the delivery manifold 12 is regulated by a control valve.

The secondary sedimentation tank 100 of the present embodiment includes the scum spraying apparatus of the water distribution tank of the secondary sedimentation tank. The secondary sedimentation tank 100 comprises a water distribution tank 101, a water outlet tank 102 and a sedimentation tank 103 positioned in the center from outside to inside in sequence. The sewage mixed with the sludge in the aerobic tank enters the water distribution tank 101 from a water inlet of the water distribution tank 101, the sewage in the water distribution tank 101 is conveyed to a middle layer of the sedimentation tank 103 from a water distribution pipe at the bottom of the water distribution tank 101 for sedimentation, the sewage is settled and then is positioned at a lower layer of the sedimentation tank 103 and is discharged from a sludge outlet at the bottom of the sedimentation tank 103, the clear water at an upper layer of the sedimentation tank 103 overflows to the water outlet tank 102, and a part of the clear water in the water outlet tank 102 is pumped to the scum spraying device of the secondary sedimentation tank water distribution tank by the submersible pump arranged at the bottom of the water outlet tank 102, so that the water surface of the water distribution tank 101 is sprayed, the scum accumulation in the water distribution tank 101 is effectively prevented, a large amount of manpower and material resources are.

The secondary sedimentation tank 100 further comprises a scum baffle 105 arranged between the effluent tank 102 and the sedimentation tank 103, and an effluent triangular weir plate arranged between the effluent tank 102 and the scum baffle 105. The scum baffle 105 is at a higher elevation than the triangular weir to prevent scum from the water level in the settling tank 103 from flowing directly into the effluent trough 102. The secondary sedimentation tank 100 further comprises a slag discharge hopper 106 arranged at the inner side of the scum board, a slag discharge pipe connected with a slag discharge port at the bottom of the slag discharge hopper 106, and a slag discharge well 107 arranged at the outer side of the secondary sedimentation tank 100 and connected with the slag discharge pipe. The scum baffle 105 is also provided with a scum flushing device 108 on the inside. The center of the bottom of the sedimentation tank 103 is provided with a sludge suction machine 104 which is used for scraping sludge at the bottom of the sedimentation tank 103 to a sludge outlet at the bottom of the sedimentation tank. The bottom of the water outlet tank 102 is provided with a water outlet pipe for conveying clean water to the contact tank for disinfection treatment. In this embodiment, the orientation of the slag inlet of the slag discharging hopper 106 is opposite to the rotation direction of the suction dredge 104, and the flow direction of the water surface in the sedimentation tank 103 is the same as the rotation direction of the suction dredge 104, so that the scum is automatically driven to flow into the slag discharging hopper 106 from the slag outlet when the water surface in the sedimentation tank 103 flows.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A scum spraying device of a distributing tank of a secondary sedimentation tank is used for preventing scum from being accumulated in the distributing tank (101) of the secondary sedimentation tank (100),

the spraying device comprises a main conveying pipe (11) arranged along the conveying direction of the water distribution tank (101), a branch conveying pipe (12) communicated with the main conveying pipe (11), a nozzle arranged at the pipe orifice of the branch conveying pipe (12) and used for spraying towards the water surface of the water distribution tank (101), and a pumping device (13) communicated with the main conveying pipe (11) and used for pumping water into the main conveying pipe (11),

the conveying branch pipes (12) extend towards the water surface of the water distribution tank (101), the pipe openings of the conveying branch pipes (12) are located above the water surface, and the plurality of conveying branch pipes (12) are arranged at intervals along the conveying direction of the conveying main pipe (11).

2. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 1,

the pipe orifice of the delivery branch pipe (12) faces the same direction as the flowing direction of the sewage in the water distribution tank (101).

3. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 2,

the nozzle is arranged at the pipe orifice of the output branch pipe, the nozzle orifice of the nozzle inclines downwards, and the included angle between the direction of the nozzle orifice and the water surface of the water distribution groove (101) is 30-60 degrees.

4. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 1,

the arrangement distance of the conveying branch pipes (12) which are farther away from the water inlet of the water distribution tank (101) on the conveying main pipe (11) is smaller, and the arrangement distance of the conveying branch pipes (12) which are closer to the water inlet of the water distribution tank (101) is larger.

5. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 4,

the pumping device (13) is arranged at the bottom of the water outlet groove (102) of the secondary sedimentation tank (100), so that the clear water precipitated and separated in the water outlet groove (102) is pumped into the main conveying pipe (11).

6. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 5,

the pumping device (13) is mounted close to the region of the distribution tank (101) where the water flow velocity is the slowest.

7. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 4,

the arrangement distance of the conveying branch pipes (12) is 2-9 meters.

8. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 1,

the main conveying pipe (11) is erected on the wall of the water distribution tank (101) along the conveying direction of the water distribution tank (101), or the main conveying pipe (11) is embedded in the wall of the water distribution tank (101) along the conveying direction of the water distribution tank (101).

9. The scum spraying apparatus of the secondary sedimentation tank water distribution tank as claimed in claim 1,

the delivery branch pipe (12) is provided with a control valve.

10. A secondary sedimentation tank, characterized by comprising the scum spraying device of the secondary sedimentation tank water distribution tank of any one of claims 1 to 9.