CN220182986U

CN220182986U - Clarification treatment device

Info

Publication number: CN220182986U
Application number: CN202223012569.9U
Authority: CN
Inventors: 辜琦; 冯巍; 李社锋
Original assignee: Wuhan Thought Of Forging Anew Environment Engineering Co ltd; Hubei Yinianyuan Jingji Intelligent Manufacturing Co ltd; Wuhan Polytechnic University
Current assignee: Wuhan Thought Of Forging Anew Environment Engineering Co ltd; Hubei Yinianyuan Jingji Intelligent Manufacturing Co ltd; Wuhan Polytechnic University
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-12-15
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to a clarification treatment device, which comprises a buffer tank, a first coagulation tank, a second coagulation tank, a flocculation tank and a clarification tank which are sequentially connected, wherein the buffer tank is provided with a water inlet pipe and a coagulant adding unit; a horizontal water distribution wall is arranged in the first coagulation tank, and is positioned below a stirrer in the first coagulation tank and above a water inlet at the bottom of the first coagulation tank; the horizontal water distribution wall comprises two strakes and a plurality of water distribution beams, the two strakes are arranged on two opposite tank walls of the first coagulation tank, the water distribution beams are arranged in parallel at intervals, and two ends of each water distribution beam are respectively supported on the two strakes. According to the utility model, the horizontal water distribution wall is arranged in the first coagulation tank, so that the effect of uniformly distributing water to the first coagulation tank can be achieved, and the sewage coagulation effect is improved; the purpose of controlling the water flow rate in the first coagulation tank can be achieved by increasing or decreasing the number of the water distribution beams, so that the sewage treatment process can be controlled reasonably, and the sewage treatment effect and efficiency are improved.

Description

Clarification treatment device

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a clarification device.

Background

The high-efficiency clarifying device is a supporting device for sewage treatment, and mainly utilizes particles in raw water and an added flocculating agent to mix and flocculate to form floccules and separate water, so that sewage is clarified, and the adopted structural form is mainly mechanical stirring clarification at present. The high-efficiency clarification device generally adopts a plug-flow sewage circulation mode, so that the sewage circulation uniformity, the sewage residence time, the treatment flow and the like are not easy to control, and the sewage treatment effect is affected.

Disclosure of Invention

The utility model relates to a clarification device which can at least solve part of the defects in the prior art.

The utility model relates to a clarification treatment device, which comprises a buffer tank, a first coagulation tank, a second coagulation tank, a flocculation tank and a clarification tank which are sequentially connected along the sewage flowing direction, wherein the buffer tank is provided with a water inlet pipe and a coagulant adding unit, the flocculation tank is provided with a flocculant adding unit, and stirrers are arranged in the first coagulation tank, the second coagulation tank and the flocculation tank; a horizontal water distribution wall is arranged in the first coagulation tank, and is positioned below a stirrer in the first coagulation tank and above a water inlet at the bottom of the first coagulation tank; the horizontal water distribution wall comprises two strakes and a plurality of water distribution beams, the two strakes are arranged on two opposite tank walls of the first coagulation tank, the water distribution beams are arranged at intervals in parallel, and two ends of each water distribution beam are respectively supported on the two strakes.

As one of the implementation modes, a plurality of shelving grooves are formed in the shelf, the shelving grooves on two sides are the same in number and are opposite to each other one by one, and two ends of the water distribution beam are respectively located in the shelving grooves on the corresponding sides.

As one embodiment, the groove width of the placing groove is Liang Kuanda-30 mm larger than that of the water distribution beam.

As one of implementation modes, the top of the water distribution beam is provided with a hanging ring.

As one of implementation modes, a first partition wall is adopted to separate the buffer tank from the first coagulation tank, a second partition wall is adopted to separate the first coagulation tank from the second coagulation tank, the first partition wall is opposite to the second partition wall in parallel, a water inlet at the bottom of the tank is positioned on the first partition wall, and two shelves are respectively positioned on the first partition wall and the second partition wall.

As one of the implementation modes, the length direction of the water distribution beam is perpendicular to the wall surface of the first partition wall.

As one of the implementation modes, the second partition wall is provided with a water passing channel, and the water passing channel is positioned below the horizontal water distribution wall.

As one embodiment, the water passing channel comprises a plurality of water passing holes formed on the second partition wall.

The utility model has at least the following beneficial effects:

according to the utility model, the horizontal water distribution wall is arranged in the first coagulation tank, so that the effect of uniformly distributing water to the first coagulation tank can be achieved, and the sewage coagulation effect is improved; the purpose of controlling the water flow rate in the first coagulation tank can be achieved by increasing or decreasing the number of the water distribution beams, so that the sewage treatment process can be controlled reasonably, and the sewage treatment effect and efficiency are improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic plan view of a sewage clarifying treatment apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a second coagulation tank-flocculation tank-clarification tank provided by an embodiment of the utility model;

FIG. 3 is a schematic cross-sectional view of a front mixing unit according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a horizontal water distribution wall according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1, the embodiment of the utility model provides a clarification device, which comprises a buffer tank 11, a first coagulation tank 12, a second coagulation tank 13, a flocculation tank 2 and a clarification tank 3 which are sequentially connected along the sewage flowing direction, wherein the buffer tank 11 is provided with a water inlet pipe and a coagulant adding unit, the flocculation tank 2 is provided with a flocculant adding unit, and the first coagulation tank 12, the second coagulation tank 13 and the flocculation tank 2 are respectively provided with a stirrer; a horizontal water distribution wall 121 is arranged in the first coagulation tank 12, and the horizontal water distribution wall 121 is positioned below a stirrer in the first coagulation tank 12 and above a water inlet at the bottom of the first coagulation tank 12; the horizontal water distribution wall 121 comprises two shelves and a plurality of water distribution beams 122, wherein the two shelves are arranged on two opposite tank walls of the first coagulation tank 12, the water distribution beams 122 are arranged in parallel and at intervals, and two ends of each water distribution beam 122 are respectively supported on the two shelves.

The clarification device provided in this embodiment is disposed behind the secondary sedimentation tank, and the buffer tank 11 receives incoming water from the secondary sedimentation tank, so that the water inlet pipe extends to be connected with the secondary sedimentation tank. In one embodiment, the water inlet pipe includes a horizontal section, a vertical section, and a transition bend section connecting the horizontal section and the vertical section, the horizontal section is disposed on the tank body of the buffer tank 11 in a penetrating manner, the axis of the horizontal section is parallel to the vertical direction, the vertical section is disposed in the tank body of the buffer tank 11, and a pipe body bracket can be disposed on the tank wall to fix the vertical section. The top of vertical section is its exit end, and this top is close to the design liquid level of buffer tank 11, and the delivery port of buffer tank 11 is located its bottom, consequently can make intaking turn to the back subsidence, the come-up of the large granule material in the sewage of being convenient for to also prolonged the dwell time of sewage in buffer tank 11. A gate valve can be arranged at the water outlet of the buffer tank 11, and an actuator of the gate valve can be arranged at the top of the tank.

As shown in fig. 1 and 3, as a preferable scheme, the buffer tank 11, the first coagulation tank 12 and the second coagulation tank 13 adopt integrally formed front mixing tank bodies, and the three tanks are separated by partition walls to form corresponding tank areas. Wherein, the water outlet of the buffer tank 11 is arranged at the bottom of the partition wall between the buffer tank 11 and the first coagulation tank 12, and the water outlet of the buffer tank 11 is correspondingly the water inlet at the bottom of the first coagulation tank 12. A certain distance is reserved between the partition wall between the first coagulation tank 12 and the second coagulation tank 13 and the tank top of the front mixing tank body, so that a water flow channel between the first coagulation tank 12 and the second coagulation tank 13 is formed, and water flows in from the bottom of the first coagulation tank 12 and overflows from the top of the first coagulation tank.

The second coagulation tank 13 adopts a bottom water outlet mode, a tank bottom water outlet pipe 131 is arranged at the tank bottom, and the tank bottom water outlet pipe 131 is buried and extends to the lower part of the flocculation tank 2. Further, as shown in fig. 2, a central water inlet cylinder 21 is disposed at the bottom of the flocculation tank 2, and the water outlet pipe 131 at the bottom of the flocculation tank is connected to the central water inlet cylinder 21.

In this embodiment, by providing the horizontal water distribution wall 121 in the first coagulation tank 12, the effect of uniformly distributing water into the first coagulation tank 12 can be achieved, and the sewage coagulation effect can be improved. In particular, the purpose of controlling the water flow rate in the first coagulation tank 12 can be achieved by increasing or decreasing the number of the water distribution beams 122, so that the sewage treatment process can be controlled reasonably, and the sewage treatment effect and efficiency can be improved.

In one embodiment, as shown in fig. 4, a plurality of rest slots are provided on the shelf, and two ends of the water distribution beam 122 are respectively located in the rest slots on the corresponding sides. Obviously, the number of resting grooves on both sides is the same and opposite one another. By arranging the placing groove, the water distribution beam 122 is convenient to accurately position and place, and the uniformity of water distribution is ensured. Further preferably, the groove width of the placing groove is larger than the beam width of the water distribution beam 122, preferably slightly larger than the beam width of the water distribution beam 122, so that the water distribution beam 122 is convenient to place and hang off; in this embodiment, the groove width of the rest groove is 10 to 30mm larger than the beam width of the water distribution beam 122.

In one embodiment, the top of the water distribution beam 122 is provided with hanging rings, and the water distribution beam 122 can be placed and lifted off by a lifting device.

Preferably, the length direction of the water distribution beam 122 is perpendicular to the partition wall surface between the first coagulation tank 12 and the buffer tank 11, so that the uniformity of water distribution can be improved,

in a further preferred embodiment, as shown in fig. 3, a water passing channel 123 is further provided on the partition wall between the first coagulation tank 12 and the second coagulation tank 13, and the water passing channel 123 is located below the horizontal water distribution wall 121. Based on the scheme, the water pressure in the first coagulation tank 12 and the second coagulation tank 13 can be adaptively adjusted, and the water pressure stability and the water flow smoothness in the first coagulation tank 12 and the second coagulation tank 13 are ensured. The water passage 123 may include a plurality of water holes, and each water hole may be arranged side by side and in a direction parallel to a length direction of the shelf.

In one embodiment, as shown in fig. 1 and 3, the buffer tank 11, the first coagulation tank 12 and the second coagulation tank 13 are sequentially arranged and connected in a transverse direction to form a pre-mixing unit 1, and the pre-mixing unit 1, the flocculation tank 2 and the clarification tank 3 are sequentially arranged in a longitudinal direction. Based on the structure, the sewage treatment flow and the sewage line are reasonable in design, the layout compactness is high, and the occupied area of the device can be reduced;

further, the clarifier 3 is provided with a sludge return pipe 44 connected to the sludge circulation pump 41 and an excess sludge suction pipe 45 connected to the sludge absorption pump 42, a sludge circulation pipe 46 provided with the sludge circulation pump 41 is connected to the flocculation tank 2, and a sludge discharge pipe provided with the sludge absorption pump 42 extends to the outside of the apparatus.

Further, as shown in fig. 2, the sludge circulation pipe 46 is connected to the center feed water drum 21. Wherein, the connection point of the sludge circulation pipe 46 is positioned above the connection point of the bottom water outlet pipe 131, so that the water outlet of the bottom water outlet pipe 131 can carry the circulating sludge in an upward manner into the flocculation tank 2 without additional power, and the mixing effect of sewage and the circulating sludge is better.

In one embodiment, as shown in fig. 1, the lateral width of the pre-mixing unit 1 is the same as that of the flocculation tank 2, that is, the lateral width of the pre-mixing tank body is the same as that of the flocculation tank 2, so that the arrangement and the management are convenient. Generally, the lateral width of the flocculation tank 2 is smaller than that of the clarification tank 3, and based on the width difference, when two groups of clarification treatment devices are arranged side by side, enough space is arranged between the two groups of flocculation tanks 2, so that the layout compactness of the device can be improved, the occupied area of the device can be reduced, and particularly, the pump group is arranged between the two groups of flocculation tanks 2, is closer to the flocculation tank 2 and the clarification tank 3, is convenient for sludge circulation, and can reduce the power energy consumption. Optionally, a pump house 4 is provided between the two sets of flocculation tanks 2 for centrally accommodating the pump sets.

Further, each set of clarification devices also comprises a flushing water pump 43, which flushing water pump 43 may be arranged centrally with the pump package described above, e.g. also housed in the pump house 4 described above. The flushing water pump 43 is used to supply flushing water, and can flush the sludge circulation pump 41, the sludge absorption pump 42, and the like.

Wherein, preferably, as shown in fig. 2, a central cylinder is arranged at the bottom of the actuator of the clarifier 3, and the inlet end of the sludge return pipe 44 extends into the central cylinder; the bottom of the clarification tank 3 is provided with a mud collecting tank, and the inlet end of the residual mud suction pipe 45 is arranged at the bottom of the mud collecting tank. Part of the activated sludge in the clarification tank 3 flows back to the flocculation tank 2, so that the sewage treatment effect can be improved.

In one embodiment, the buffer tank 11 and/or the first coagulation tank 12 is provided with a secondary sedimentation tank sludge supply pipe, and the secondary sedimentation tank sludge supply pipe is used for supplying secondary sedimentation tank sludge. By adding secondary sedimentation tank sludge to the buffer tank 11 and the first coagulation tank 12, the sewage treatment effect can be improved.

In one embodiment, as shown in fig. 1, the flocculant adding unit comprises an annular flocculation distribution pipe arranged in the flocculation tank 2, and the flocculation distribution pipe is connected with a water supply pipe 22 and a flocculant supply pipe 23. In the flocculation distributing pipe, the flocculant is pre-mixed with the water supply, so that the flocculation effect of the sewage can be effectively improved. Preferably, the flocculation distribution pipe has two water supply ends, and the two water supply ends are respectively connected with one water supply pipe 22; the two water supply ends are adjacently arranged and are opposite to the outlet end of the flocculant supply pipe 23, and the two water supply ends fully wrap flocculant particles and mutually collide and mix, so that good flocculation liquid preparation effect and efficiency can be obtained.

Further preferably, a guide cylinder is arranged in the center of the flocculation tank 2, and the flocculation distribution pipe and the corresponding stirrer are arranged in the guide cylinder; the central water inlet cylinder 21 extends into the guide cylinder, the sewage and the flocculating agent are fully mixed in advance through the restraint and the guide of the guide cylinder, and the flocculation reaction is carried out in the flocculation tank 2 for enough time, so that the volume of the flocculation tank 2 can be reduced. Preferably, an annular shelf is provided on the inner wall of the guide cylinder, and the flocculation distribution pipe is placed on the annular shelf.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The clarification treatment device comprises a buffer tank, a first coagulation tank, a second coagulation tank, a flocculation tank and a clarification tank which are sequentially connected along the sewage flowing direction, wherein the buffer tank is provided with a water inlet pipe and a coagulant adding unit, the flocculation tank is provided with a flocculant adding unit, and the first coagulation tank, the second coagulation tank and the flocculation tank are internally provided with stirrers; the method is characterized in that: a horizontal water distribution wall is arranged in the first coagulation tank, and is positioned below a stirrer in the first coagulation tank and above a water inlet at the bottom of the first coagulation tank; the horizontal water distribution wall comprises two strakes and a plurality of water distribution beams, the two strakes are arranged on two opposite tank walls of the first coagulation tank, the water distribution beams are arranged at intervals in parallel, and two ends of each water distribution beam are respectively supported on the two strakes.

2. The clarification device of claim 1, wherein: the shelf is provided with a plurality of shelving grooves, the shelving grooves on two sides are the same in number and are opposite one to one, and two ends of the water distribution beam are respectively positioned in the shelving grooves on the corresponding sides.

3. The clarification device of claim 2, wherein: the groove width of the placing groove is Liang Kuanda-30 mm larger than that of the water distribution beam.

4. The clarification device of claim 1, wherein: and the top of the water distribution beam is provided with a hanging ring.

5. The clarification device of claim 1, wherein: the buffer pool is separated from the first coagulation pool by a first partition wall, the first coagulation pool is separated from the second coagulation pool by a second partition wall, the first partition wall is parallel and opposite to the second partition wall, a water inlet at the bottom of the pool is positioned on the first partition wall, and two joists are respectively positioned on the first partition wall and the second partition wall.

6. The clarification device according to claim 5, wherein: the length direction of the water distribution beam is perpendicular to the wall surface of the first partition wall.

7. The clarification device according to claim 5, wherein: and a water passing channel is arranged on the second partition wall and is positioned below the horizontal water distribution wall.

8. The clarification device of claim 7, wherein: the water passing channel comprises a plurality of water passing holes formed in the second partition wall.