CN221358659U

CN221358659U - Aeration circulation vertical flow grit chamber

Info

Publication number: CN221358659U
Application number: CN202323153160.3U
Authority: CN
Inventors: 陈燕波; 潘名宾; 刘金利; 程抗
Original assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Current assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2023-11-20
Filing date: 2023-11-20
Publication date: 2024-07-19
Anticipated expiration: 2033-11-20

Abstract

The utility model belongs to the technical field of sewage treatment, and provides an aeration circulation vertical flow grit chamber, which comprises a chamber body, a water distribution channel and a water outlet channel; the side wall of the water distribution channel is provided with a plurality of water distribution holes, and the side wall of the water outlet channel is provided with a plurality of water outlet weir crest; the aeration pipe is perforated upwards, and the bottom in the tank body is provided with a sand collecting groove. The aeration circulation vertical flow sand setting tank combines the 'dynamic' of aeration sand setting with the 'static' of vertical flow sand setting, and creates good sand setting environment and condition. The aeration scouring and lifting functions are utilized to form vertical large-proportion circulation of water flow, the circulating sand washing function is achieved on sewage, flocculent sludge adhered to the outside of gravel is effectively broken, the sand washing effect is improved, then the vertical flow sand setting separation is carried out, and the sand removal effect can be greatly improved.

Description

Aeration circulation vertical flow grit chamber

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to an aeration circulation vertical flow grit chamber.

Background

Grit chambers are important pretreatment facilities in sewage treatment. Found in practical engineering application, domestic common grit chambers, including an aeration grit chamber, a rotational flow grit chamber, a horizontal flow grit chamber, a vertical flow grit chamber and the like, especially the vertical flow grit chamber, often has the problem of poor sand removal effect during use, and the sewage after sand removal still carries a large amount of gravel to enter a subsequent biochemical treatment tank, thereby influencing the subsequent biochemical treatment efficiency. Therefore, measures are taken to improve the sand removal effect of the grit chamber.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model provides an aeration circulation vertical flow sand setting tank, which combines the 'dynamic' of aeration sand setting with the 'static' of vertical flow sand setting, namely, the scouring and lifting actions of aeration are utilized to form vertical large-proportion circulation of water flow, the effect of circulating sand washing is achieved on sewage, and then the sand removal effect can be greatly improved through vertical flow sand setting separation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an aeration circulation vertical flow grit chamber comprises a chamber body, a water distribution channel and a water outlet channel;

The water distribution canal and the water outlet canal are respectively arranged at two opposite sides of the pool body, a plurality of water distribution holes are formed in the side wall of the water distribution canal, the water distribution holes are communicated with the water distribution canal and the pool body, a plurality of water outlet weir ports are formed in the side wall of the water outlet canal, and the water outlet weir ports are communicated with the water outlet canal and the pool body;

The aeration pipe is positioned on one side of the first guide plate close to the water distribution channel, a guide opening is penetrated and arranged on the side wall of the top of the first guide plate, the second guide plate is positioned on one side of the first guide plate close to the water outlet channel, and a sand collecting groove is arranged at the bottom in the tank body.

Preferably, the water distribution channel and the water outlet channel are arranged along the length direction of the tank body.

Preferably, the first deflector, the second deflector and the aeration pipe are all arranged along the length direction of the tank body.

Preferably, a plurality of water distribution holes are uniformly arranged at intervals along the length direction of the tank body.

Preferably, the water outlet weir crest is uniformly arranged at intervals along the length direction of the tank body.

Preferably, the sand collecting device further comprises a truss-type sand discharging machine and a sand discharging groove, wherein the truss-type sand discharging machine comprises a walking truss and a sand discharging pipeline, the walking truss moves along the length direction of the tank body, the sand discharging pipeline is fixed with the walking truss, the bottom end of the sand discharging pipeline extends to the bottom in the sand collecting groove, the top end of the sand discharging pipeline extends to the upper part in the sand discharging groove, and a sand sucking pump is arranged on the sand discharging pipeline.

Preferably, the walking truss car comprises a support, a track, rollers and a motor, wherein the track is arranged along the length direction of the tank body, the rollers are rotatably mounted on the support and matched with the track, the motor is fixedly mounted on the support and used for driving the rollers to rotate, and the sand discharge pipeline is fixed with the support.

Preferably, the sand collecting groove comprises a guiding slope fixedly arranged at the inner bottom of the tank body, and an included angle between the inclined surface of the guiding slope and the horizontal plane is not smaller than 55 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

1. The aeration circulating vertical flow sand setting tank combines the 'dynamic' of aeration sand setting and the 'static' of vertical flow sand setting, and creates good sand setting environment and condition. The aeration scouring and lifting functions are utilized to form vertical large-proportion circulation of water flow, the circulating sand washing function is achieved on sewage, flocculent sludge adhered to the outside of gravel is effectively broken, the sand washing effect is improved, then the vertical flow sand setting separation is carried out, and the sand removal effect can be greatly improved.

2. The aeration circulation vertical flow grit chamber provided by the utility model adopts a long-side water inlet and long-side water outlet mode, has low water inlet and outlet flow rates, can realize uniform water inlet and water outlet, creates good water inlet and water outlet conditions, and improves the tank capacity utilization efficiency and grit effect.

Drawings

FIG. 1 is a schematic cross-sectional view of an aeration cycle vertical flow grit chamber according to an embodiment of the present utility model;

Fig. 2 is a schematic top view of an aeration circulation vertical flow grit chamber according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of an aeration cycle vertical flow grit chamber according to an embodiment of the present utility model;

Fig. 4 is a schematic side view structure of a walking truss of an aeration cycle vertical flow grit chamber and related parts thereof according to an embodiment of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. A water inlet pipe; 2. a distribution canal; 3. a cell body; 4. a water outlet channel; 5. a water outlet pipe; 6. a truss-type sand discharging machine; 7. a sand discharge groove; 21. a water distribution hole; 33. a sand collecting groove; 34. an aeration pipe; 35. a first deflector; 36. a second deflector; 37. a water outlet weir mouth; 61. a walking truss; 62. a sand discharge pipeline; 610. a bracket; 611. a track; 612. a roller; 613. and a motor.

Detailed Description

The present utility model will be described in further detail with reference to specific examples so as to more clearly understand the present utility model by those skilled in the art.

It should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, unless otherwise specifically indicated and defined. The specific meaning of such terms in this patent will be understood by those of ordinary skill in the art as the case may be.

As shown in fig. 1, the aeration circulation vertical flow grit chamber provided by the embodiment comprises a tank body 3, a water distribution channel 2 and a water outlet channel 4;

The water distribution canal 2 and the water outlet canal 4 are respectively arranged on the left side and the right side of the pool body 3, a plurality of water distribution holes 21 are formed in the right side wall of the water distribution canal 2, the water distribution holes 21 are communicated with the water distribution canal 2 and the pool body 3, a plurality of water outlet weir openings 37 are formed in the left side wall of the water outlet canal 4, the water outlet weir openings 37 are communicated with the water outlet canal 4 and the pool body 3, the water distribution canal 2 is communicated with the water inlet pipe 1, and the water outlet canal 4 is communicated with the water outlet pipe 5.

The aeration pipe 34, the first guide plate 35 and the second guide plate 36 are sequentially and fixedly arranged in the tank body 3 from left to right, the second guide plate 36 divides the tank body 3 into two areas, the left side is an aeration circulation sand washing area, the right side is a vertical flow sand sedimentation area, the aeration pipe 34 and the first guide plate 35 are both positioned in the aeration circulation sand washing area, the first guide plate 35 divides the aeration circulation sand washing area into two vertical channels, a guide opening used for communicating the two vertical channels is penetrated through the side wall at the top of the first guide plate 35, the aeration pipe 34 is arranged at the lower part of the left vertical channel, the aeration pipe 34 is perforated upwards, and a sand collecting groove 33 is arranged at the bottom of the tank body 3.

Based on the above structure, when the aeration pipe 34 is opened, as shown in fig. 1, the sewage to be treated enters the distribution channel 2 from the water inlet pipe 1, and then enters the left vertical passage in the tank body 3 through the water distribution holes 21. At this time, the aeration pipe 34 sweeps upwards, so that the water flow in the left vertical channel flows upwards, then flows into the right vertical channel through the diversion opening, then flows downwards along the right vertical channel, the water at the bottom of the right vertical channel can partially flow towards the left vertical channel due to the suction effect formed by aeration, so that a large vertical proportion circulation of water flow is formed, the sewage is circulated and washed, flocculent sludge adhered to the outside of gravel is effectively broken, sand grains are facilitated to be deposited in the sand collecting groove 33, the sand washing effect is improved, meanwhile, the water at the bottom of the right vertical channel can partially flow rightwards into the vertical flow sand settling zone for static sand settling separation, and supernatant at the top of the vertical flow sand settling zone can enter the water outlet channel 4 through the water outlet weir opening 37 and is finally discharged by the water outlet pipe 5. In order to ensure the sand washing effect, the residence time of the sewage in the tank body 3 is not less than 5min.

In summary, the aeration circulation vertical flow sand sedimentation tank provided by the embodiment combines the 'movement' of the aeration circulation sand washing area with the 'static' of the vertical flow sand sedimentation area, thereby creating good sand sedimentation environment and conditions. The aeration scouring and lifting functions are utilized to form vertical large-proportion circulation of water flow, the circulating sand washing function is achieved on sewage, flocculent sludge adhered to the outside of gravel is effectively broken, the sand washing effect is improved, then the vertical flow sand setting separation is carried out, and the sand removal effect can be greatly improved.

In this embodiment, as shown in fig. 2, the water distribution channel 2 and the water outlet channel 4 are both arranged along the length direction of the tank body 3. And a plurality of water distribution holes 21 are uniformly arranged at intervals along the length direction of the tank body 3. The water outlet weir crest 37 is uniformly arranged at intervals along the length direction of the pool body 3. The setting like this, the grit chamber adopts long limit water inflow and long limit water outlet's mode, and water inflow, water outlet velocity of flow are low, can realize even water inflow and water outlet, create good water inflow and water outlet condition, improve pond appearance utilization efficiency and sand setting effect.

The first deflector 35, the second deflector 36, and the aeration pipe 34 are all disposed along the length direction of the tank body 3. The aeration direction is parallel to the two vertical channels, so that the vertical large-proportion circulation of water flow can be formed quickly.

The sand separated from the sand in the tank body 3 is deposited in the sand collecting tank 33, so that the sand deposited in the sand collecting tank 33 can be discharged in time. As shown in fig. 1 and 3, the aeration cycle vertical flow sand basin provided in this embodiment further includes a truss-type sand discharging machine 6 and a sand discharging groove 7, the truss-type sand discharging machine 6 includes a traveling truss 61 and a sand discharging pipe 62, the traveling truss 61 can move along the length direction of the basin body 3, the sand discharging pipe 62 is fixed with the traveling truss 61, the bottom end of the sand discharging pipe 62 extends to the bottom in the sand collecting groove 33, the top end of the sand discharging pipe 62 extends to the upper part in the sand discharging groove 7, and a sand sucking pump is arranged on the sand discharging pipe 62. The sand discharge grooves 7 are arranged along the length direction of the tank body 3, and the sand discharge grooves 7 are fixedly arranged on the inner wall of the tank body 3.

When the walking truss car 61 moves back and forth along the length direction of the tank body 3, the sand discharge pipeline 62 can be driven to move back and forth along the length direction of the tank body 3, and then the sand suction pump is started, so that sand deposition at different positions of the bottom in the tank body 3 can be sucked into the sand discharge groove 7. It should be noted that the top end of the sand discharging pipe 62 extends into the sand discharging groove 7 from above, so that the sand discharging pipe 62 and the sand discharging groove 7 do not interfere with each other when the sand discharging pipe 62 moves back and forth along the length direction of the tank body 3.

Specifically, as shown in fig. 4, the walking truss 61 includes a support 610, a track 611, a roller 612, and a motor 613, where the track 611 is disposed along the length direction of the tank body 3, the roller 612 is rotatably mounted on the support 610, the roller 612 is matched with the track 611, the motor 613 is fixedly mounted on the support 610, the motor 613 is used for driving the roller 612 to rotate, and the sand discharge pipe 62 is fixed with the support 610.

The motor 613 is fixedly mounted on the support 610, the power output end of the motor 613 can be coaxially fixed with the roller 612, and the roller 612 can be driven to roll through rotation of the power output end of the motor 613.

The walking truss 61 may include two sets of rails 611 and two sets of rollers 612, where the two sets of rails 611 are respectively and fixedly installed at top ends of two opposite side walls of the tank 3, and the two sets of rails 611 are respectively located above two long sides of the tank 3, so that the support 610 spans across the tank 3 in the width direction, and the two sets of rollers 612 are respectively matched with the two sets of rails 611. So that the walking truss 61 is more stable when moving back and forth along the length direction of the tank body 3.

In this embodiment, the sand collecting tank 33 includes two guiding slopes fixedly disposed at the bottom in the tank body 3, and an included angle between an inclined plane of the guiding slopes and a horizontal plane is not smaller than 55 °. The guiding slope can be plain concrete blocks, and the two guiding slopes jointly form a groove-shaped guiding structure.

Mechanisms, components, and members not described in the specific structure of the present utility model are all existing structures already existing in the prior art. Can be purchased directly from the market.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The foregoing is merely a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An aeration circulation vertical flow grit chamber is characterized by comprising a tank body (3), a water distribution channel (2) and a water outlet channel (4);

The water distribution canal (2) and the water outlet canal (4) are respectively arranged on two opposite sides of the pool body (3), a plurality of water distribution holes (21) are formed in the side wall of the water distribution canal (2), the water distribution holes (21) are communicated with the water distribution canal (2) and the pool body (3), a plurality of water outlet weir ports (37) are formed in the side wall of the water outlet canal (4), and the water outlet weir ports (37) are communicated with the water outlet canal (4) and the pool body (3);

The utility model discloses a water distribution ditch, including cell body (3), aeration pipe (34), first guide plate (35), second guide plate (36) are equipped with to cell body (3) internal fixation, aeration pipe (34) perforation is upwards, aeration pipe (34) are located first guide plate (35) are close to water distribution ditch (2) one side, run through on first guide plate (35) top lateral wall and be equipped with the water conservancy diversion mouth, second guide plate (36) are located first guide plate (35) are close to water outlet ditch (4) one side, bottom in cell body (3) is equipped with sand collecting tank (33).

2. An aerated circulating vertical flow grit chamber according to claim 1, wherein the distribution canal (2) and the outlet canal (4) are arranged along the length of the chamber body (3).

3. An aerated circulation vertical flow grit chamber as in claim 2, wherein said first baffle (35), said second baffle (36), and said aeration tubes (34) are all disposed along the length of said chamber (3).

4. An aerated circulation vertical flow grit chamber as in claim 2, wherein a plurality of said water distribution holes (21) are uniformly spaced along the length of said chamber (3).

5. An aerated circulating vertical flow grit chamber according to claim 2, wherein a plurality of said water outlet weirs (37) are evenly spaced along the length of the chamber (3).

6. The aeration circulation vertical flow sand basin according to claim 1, further comprising a truss-type sand discharging machine (6) and a sand discharging groove (7), wherein the truss-type sand discharging machine (6) comprises a traveling truss (61) and a sand discharging pipeline (62), the traveling truss (61) moves along the length direction of the basin body (3), the sand discharging pipeline (62) is fixed with the traveling truss (61), the bottom end of the sand discharging pipeline (62) extends to the inner bottom of the sand collecting groove (33), the top end of the sand discharging pipeline (62) extends to the inner upper part of the sand discharging groove (7), and a sand sucking pump is arranged on the sand discharging pipeline (62).

7. An aeration cycle vertical flow grit chamber according to claim 6, wherein the walking truss car (61) comprises a support (610), a track (611), rollers (612) and a motor (613), wherein the track (611) is arranged along the length direction of the tank body (3), the rollers (612) are rotatably mounted on the support (610), the rollers (612) are matched with the track (611), the motor (613) is fixedly mounted on the support (610), the motor (613) is used for driving the rollers (612) to rotate, and the sand discharge pipeline (62) is fixed with the support (610).

8. An aeration cycle vertical flow grit chamber according to claim 1, wherein said grit chamber (33) comprises a guiding slope fixedly provided at the inner bottom of said chamber body (3), and the inclined surface of said guiding slope forms an angle of not less than 55 ° with the horizontal plane.