CN210764568U

CN210764568U - Vertical integrated sewage treatment device

Info

Publication number: CN210764568U
Application number: CN201920839743.6U
Authority: CN
Inventors: 迟金宝; 陈凯华; 潘建通; 张雷; 汪翠萍; 张鹤; 赵嫱
Original assignee: Beijing Bohuite Environmental Technology Co ltd
Current assignee: Beijing Bohuite Environmental Technology Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-06-16
Anticipated expiration: 2029-06-04

Abstract

The utility model relates to a vertical integrated sewage treatment device, which comprises a shell (100), wherein a horn-shaped isolation cylinder (21) is arranged in the shell (100), the horn mouth of the horn-shaped isolation cylinder (21) faces the bottom of the shell (100), the horn-shaped isolation cylinder (21) divides the inner space of the shell (100) into a sedimentation tank (3) positioned at the periphery of the horn-shaped isolation cylinder (21) and a sewage treatment area (200) positioned in the horn-shaped isolation cylinder (21) and extending to the bottom of the shell (100), and a water outlet pipe (34) is communicated with the upper part of the sedimentation tank (3); a flow guide device for guiding sewage to flow to the bottom of the sedimentation tank (3) is arranged at the periphery of the horn-shaped isolation cylinder (21) in the shell (100). The device has the advantages of simple and compact structure, stable and reliable effluent quality, high treatment efficiency, small volume, small occupied area, low energy consumption and the like.

Description

Vertical integrated sewage treatment device

Technical Field

The utility model relates to a sewage treatment technical field, more specifically say, it relates to vertical integrated sewage treatment plant.

Background

With the rapid development of the economy of China and the continuous improvement of the living standard of people, the discharge amount of wastewater is increased, and the protection of the ecological environment and water resources of China is very severe. The biochemical method is the most commonly accepted main treatment method with relative economy in sewage treatment plants (stations) with various sizes at present, and mainly comprises the steps of using AO and A²O process and its improvement process, conventional activated sludge process represented by oxidation ditch, etc., biofilm process represented by Biological Aerated Filter (BAF), biological contact oxidation process and Moving Bed Biofilm Reactor (MBBR), and high concentration activated sludge process represented by Membrane Bioreactor (MBR). In practical application of the various methods, the anaerobic zone, the anoxic zone and the aerobic zone are basically arranged in a plane in the aspect of spatial arrangement, so that the occupied area is large, land resources cannot be efficiently utilized, and the method is not applied in areas with tense land utilization.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a vertical integrated sewage treatment device which has the advantages of simple and compact structure, stable and reliable water quality of discharged water, high treatment efficiency, small volume, less occupied area, low energy consumption and the like.

In order to achieve the above purpose, the utility model provides a following technical scheme: the device comprises a shell, wherein the lower part of the shell is communicated with a water inlet pipe, the upper part of the shell is communicated with a water outlet pipe, a horn-shaped isolation cylinder is arranged in the shell, a horn opening of the horn-shaped isolation cylinder faces the bottom of the shell, the internal space of the shell is divided into a sedimentation tank positioned at the periphery of the horn-shaped isolation cylinder and a sewage treatment area positioned in the horn-shaped isolation cylinder and extending to the bottom of the shell by the horn-shaped isolation cylinder, and the water outlet pipe is communicated with the upper part of the sedimentation; and a flow guide device for guiding the treated sewage flowing out of the top of the horn-shaped isolation cylinder to flow to the bottom of the sedimentation tank is arranged on the periphery of the horn-shaped isolation cylinder in the shell.

Preferably, the guide device comprises a horn-shaped guide cylinder, the coaxial line of which is sleeved at the upper part of the horn-shaped isolation cylinder, the horn mouth of the horn-shaped guide cylinder faces the bottom of the shell, the top end of the horn-shaped guide cylinder is higher than the top end of the horn-shaped isolation cylinder, and the bottom end of the horn-shaped guide cylinder is higher than the bottom of the sedimentation tank; an annular flow channel is formed between the inner wall of the horn-shaped guide cylinder and the outer wall of the horn-shaped isolation cylinder.

More preferably, the bottom edge of the trumpet-shaped isolation cylinder is connected with the inner wall of the shell; the bottom of the sedimentation tank is communicated with an outer return pipe, and the outer return pipe is communicated with the water inlet pipe.

Or, the bottom edge of a tubaeform isolating cylinder links to each other with shells inner wall, and the junction open along casing circumference has a plurality of backward flow mouths, the backward flow mouth is connected with the interior back flow that accesss to the sewage treatment district.

Or an annular backflow flow channel is formed between the bottom edge of the horn-shaped isolation cylinder and the inner wall of the shell.

Preferably, any cross section of the trumpet-shaped guide shell is circular or regular n-sided, and n is more than or equal to 4 or rectangular.

Preferably, any cross section of the shell and the trumpet-shaped isolating cylinder is circular or regular n-polygon, and n is more than or equal to 4 or rectangular.

Preferably, a water distribution device and a sludge discharge and emptying pipe are arranged at the bottom of the sewage treatment area, and the water distribution device is communicated with the water inlet pipe; the upper part of the sedimentation tank is provided with a water outlet collecting tank which is communicated with a water outlet pipe; the bottom of the sedimentation tank is communicated with an outer return pipe, and the outer return pipe is communicated with the water distribution device through a water inlet pipe.

Preferably, the sewage treatment zone at least comprises an anoxic zone and an aerobic zone from bottom to top, or the lower part of the anoxic zone is also provided with an anaerobic zone; and an air charging device is arranged at the bottom of the aerobic zone and is communicated with an air inlet pipeline.

Preferably, the cross-sectional geometry of the housing corresponding to the portion above the bottom of the settling tank is larger than the cross-sectional geometry corresponding to the bottom of the settling tank.

To sum up, the utility model discloses following beneficial effect has:

the vertical integrated sewage treatment device provided by the utility model has simple structure, compact layout and small occupied area; in addition, through the horn-shaped isolation cylinder, an independent sewage treatment area and a sedimentation tank can be arranged in the shell, and an anaerobic area, an anoxic area and an aerobic area can be arranged in the sewage treatment area at the same time, so that the functions of carbon removal, nitrogen removal, phosphorus removal and the like in the same tank are realized, and the outlet water is more reliable and stable due to the independent sedimentation tank structure; in addition, through the tubaeform draft tube that sets up, help guiding the processing back sewage that flows out from tubaeform isolating cylinder top to flow to the sedimentation tank bottom with the velocity of flow relatively very fast, improve mud-water separation efficiency, reduce the energy consumption.

Drawings

FIG. 1 is a schematic structural view of an embodiment 1 of a vertical integrated sewage treatment plant provided by the present invention;

FIG. 2 is a schematic structural view of embodiment 2 of the vertical integrated sewage treatment plant provided by the present invention;

FIG. 3 is a schematic structural view of embodiment 3 of the vertical integrated sewage treatment plant provided by the present invention;

FIG. 4 is a schematic structural view of embodiment 4 of the vertical integrated sewage treatment plant provided by the present invention;

fig. 5 is a schematic structural view of embodiment 4 of the vertical integrated sewage treatment device provided by the present invention.

Reference numerals:

3. a sedimentation tank; 10. an anoxic zone; 11. a water distribution device; 13. a water inlet pipe; 15. a sludge discharge and emptying pipe; 20. an aerobic zone; 21. a horn-shaped isolation cylinder; 211. separating the screen; 22. an inflator; 23. an air intake duct; 31. a horn-shaped guide shell; 311. a cylindrical portion; 312. a flared part; 32. an annular flow passage; 33. an effluent collection device; 34. a water outlet pipe; 35. an outer return pipe; 41. a return port; 42 an inner return pipe; 43. an annular return flow channel; 310. a reflux pump; 100. a housing; 200. a sewage treatment area.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1, the vertical integrated sewage treatment apparatus provided in embodiment 1 of the present invention includes a housing 100, a sewage treatment area 200 disposed at a lower portion of the housing 100, and a sedimentation tank 3 disposed at an upper portion of the housing 100. The side surface of the lower part of the shell 100 is communicated with a water inlet pipe 13, a water distribution device 11 such as a common water distributor connected with the water inlet pipe 13 is arranged in the shell 100, the side surface of the upper part of the shell 100 is communicated with a water outlet pipe 34, and the side surface of the lower part of the sedimentation tank 3 is connected with an external return pipe 35.

The utility model discloses in, the cross section of casing 100 can be for circular, or positive n limit shape, and n is greater than or equal to 4, perhaps the rectangle. In the embodiments, the cross section of the casing 100 is circular to illustrate the present invention, but this does not limit the present invention.

A flared isolation cylinder 21 is arranged in the shell 100, and the flared opening of the flared isolation cylinder 21 faces the bottom of the shell 100. The trumpet-shaped isolation cylinder 21 divides the inner space of the shell 100 into a sedimentation tank 3 positioned at the periphery of the trumpet-shaped isolation cylinder 21 and a sewage treatment area 200 positioned inside the trumpet-shaped isolation cylinder 21 and extending to the bottom of the shell 100.

In a preferred embodiment, the sewage treatment zone 200 may at least comprise an anoxic zone 10 and an aerobic zone 20 from bottom to top. In a more preferred embodiment, an anaerobic zone (not shown) may also be provided within or below the anoxic zone 10 in the wastewater treatment zone 200. Activated sludge (containing biological bacteria that can adapt to aerobic or anoxic or anaerobic environments) is typically added to the wastewater treatment zone 200.

The bottom of the aerobic zone 20 is also provided with an aerating device 22 for aeration in sewage treatment, and the aerating device 22 comprises an air inlet pipeline 23 communicated with the side surface of the middle part of the shell 100. In addition, a sludge and air discharge pipe 15 is connected to the bottom of the sewage treatment area 200 in the housing 100.

The utility model discloses in, the periphery that lies in tubaeform isolating cylinder 21 in casing 100 is equipped with the guiding device that is used for guiding the processing back sewage flow that flows from tubaeform isolating cylinder 21 top to 3 bottoms of sedimentation tank.

As shown in fig. 1, the guiding device may include a flared guiding cylinder 31 coaxially sleeved on the upper portion of the flared separating cylinder 21, and the mouth of the flared guiding cylinder 31 is also facing the bottom of the housing 100, so that an annular flow passage 32 is formed between the inner wall of the flared guiding cylinder 31 and the outer wall of the flared separating cylinder 21. In addition, in the utility model, the top end of the horn-shaped guide cylinder 31 is higher than the top end of the horn-shaped isolation cylinder 21, and the horn-shaped guide cylinder can be flush with the top of the shell 100, so that the sewage is prevented from directly entering the sedimentation tank 3 from the upper part of the sedimentation tank 3; and, the bottom end of the trumpet-shaped guide shell 31 is ensured to be higher than the bottom of the sedimentation tank 3. By adopting the structure, the sewage from the sewage treatment area 200 can rapidly flow through the annular flow channel 32 at a proper flow speed and enter the sedimentation tank 3, so that under the dual actions of upward water flow and self weight of the sludge in the sedimentation tank 3, a suspended sludge layer can be automatically formed at the middle upper part of the sedimentation tank 3, the filtering action can be realized, the sedimentation effect can be improved, and the effluent is better. Preferably, the trumpet-shaped guide shell 31 comprises a cylindrical part 311 and a flared part 312 connected with the cylindrical part 311, and the joint of the cylindrical part 311 and the flared part 312 approximately corresponds to the position of a suspended sludge layer in the sedimentation tank 3, so that a stable sludge storage area is reserved at the bottom of the sedimentation tank 3. In order to improve the effect of mud-water separation, other settling devices such as an inclined tube settling assembly and the like can be arranged in the settling tank 3.

The utility model discloses in, do not do special restriction to the concrete structure of tubaeform isolating cylinder 21 and tubaeform draft tube 31, can set up its structure according to actual need, tubaeform isolating cylinder 21 and tubaeform draft tube 31's arbitrary cross section can be circular respectively, perhaps positive n limit, and n is more than or equal to 4, perhaps the rectangle. In the embodiments, the cross sections of the trumpet-shaped isolation cylinder 21 and the trumpet-shaped guide cylinder 31 are circular, but this is not a limitation of the present invention.

In a preferred embodiment, the sewage treatment zone 200 may also be filled with stationary or dispersed fillers, and the like. In this embodiment, a separation screen 211 having a detachable edge connected to the inner wall of the trumpet-shaped separation cylinder 21 may be coaxially disposed in the trumpet-shaped separation cylinder 21 to intercept large particles, such as filler, in the sewage treatment area 200.

Furthermore, an effluent collection tank 33 may be provided at the upper part of the sedimentation basin 3 in communication therewith, said effluent collection tank 33 being in communication with an outlet pipe 34. In practice, the effluent collection tank 33 may be provided inside or outside the settling tank 3.

In addition, the sludge mixed liquor precipitated in the sedimentation tank 3 can be refluxed into the sewage treatment zone 200 by adopting an applicable reflux process, such as an internal reflux mode or an external reflux mode, so that the sludge concentration in the sewage treatment zone 200 is improved, and particularly, a suspended sludge layer with high concentration can be formed in the anoxic zone and the anaerobic zone, so that the denitrification efficiency of the anoxic zone can be greatly improved, and the phosphorus release step of the anaerobic zone in the phosphorus removal process is enhanced.

In this embodiment, the external return pipe 35 may be connected to the bottom of the sedimentation tank 3, the external return pipe 35 may be connected to the water inlet pipe 13, and the return pump 310 and the adjustment valve may be disposed on the external return pipe 35.

The working process of adopting the device to carry out sewage treatment is as follows: the mixed liquid of the nitrified liquid and the sludge in the sewage and the outer return pipe 35 enters the sewage treatment area 200 from the water inlet pipe 13 at the bottom of the shell 100, is uniformly distributed on the cross section of the anoxic area 10 or an anaerobic area further arranged through the water distribution device 11, flows upwards through the sewage treatment area 200, is aerated through the aerating device 22, then flows out of the top of the aerobic area 20, enters the bottom of the sedimentation tank 3 through the annular flow channel 32, is precipitated, is collected by the water outlet collecting device 33 at the top of the sedimentation tank 3 and is discharged through the water outlet pipe 34, the precipitated sludge is completely mixed with the sewage in the water inlet pipe 13 through the outer return pipe 35 and then returns to the bottom of the sewage treatment area 200 to participate in the biochemical reaction again, and only a small amount of residual sludge is discharged through the sludge discharge and discharge pipe 15.

Example 2

As shown in fig. 2, the present embodiment is different from embodiment 1 in that the sectional geometry of the casing 100 corresponding to the portion above the bottom of the sedimentation tank 3 is larger than that corresponding to the bottom of the sedimentation tank 3. Since the cross-section of the housing 100 is circular in this embodiment, the cross-sectional geometry is the inner diameter of the housing 100.

In fact, those skilled in the art can make various modifications according to the concept of the present embodiment, so that the inner diameter of the housing 100 is increased upward from the upper and lower positions at or near the junction of the trumpet-shaped insulation can 21 and the housing 100.

With this structure, the inner diameter of the casing 100 corresponding to the part above the bottom of the sedimentation tank 3 is larger than the inner diameter corresponding to the bottom of the sedimentation tank 3, that is, the flow area at the bottom of the sedimentation tank 3 or the positions near the upper and lower parts of the bottom is increased, so that the surface load of the sedimentation tank 3 can be reduced, the sludge sedimentation time can be increased, and the sludge-water separation effect can be improved.

In the embodiment of the present invention, other devices capable of promoting the separation of mud and water, such as inclined plate or inclined tube settling device, can be used in the settling tank 3, which is not limited by the claims of the present invention.

Example 3

As shown in fig. 3, the present embodiment is different from embodiment 2 in that the sedimentation tank 3 is not provided with an outer return pipe 35, but a plurality of return ports 41 are opened along the circumferential direction of the housing 100 at the connection part of the bottom edge of the trumpet-shaped isolation cylinder 21 and the inner wall of the housing 100, and each return port 41 is connected with an inner return pipe 42 leading to the sewage treatment area 200. Through the arrangement of the plurality of inner return pipes 42, under the condition of not adopting a return pump, a larger return flow can be realized, such as the return flow more than 5 times, thereby reducing the energy consumption and improving the sewage treatment efficiency.

Example 4

As shown in fig. 4, the present embodiment is different from embodiment 2 in that the external return pipe 35 is not provided in the sedimentation tank 3, and the bottom edge of the trumpet-shaped separation cylinder 21 is not connected to the inner wall of the casing 100, thereby forming an annular return flow channel 43. With this structure, the mixed solution obtained after the treatment in the sewage treatment area 200 flows into the sedimentation tank 3, and then directly flows into the sewage treatment area 200 through the annular backflow passage 43, and further participates in the reaction.

By adopting the internal reflux manner of the annular reflux flow channel 43 in the embodiment 4, a larger reflux amount can be realized without adopting a reflux pump, such as a reflux amount more than 5 times, thereby improving the sewage treatment efficiency and reducing the cost.

Example 5

As shown in fig. 5, the present embodiment is different from embodiment 4 in that the inner diameter of the housing 100 starts to increase upward from a position below the bottom end corresponding to the trumpet-shaped insulation tube 21.

With this configuration, on the one hand, a large amount of reflux can be easily achieved as in embodiment 4, and on the other hand, disturbance of the upward flow ejected from the air distributor 23 to the downward reflux liquid can be prevented, so that most of the reflux liquid entering the sewage treatment area 200 from the sedimentation tank 3 can directly reflux to the bottom of the sewage treatment area 200, which is advantageous for improving the sewage treatment efficiency.

The present invention has been described in detail with reference to the drawings and examples, but the above description is only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. After reading this description, those skilled in the art can make modifications to the present invention as needed without inventive contribution, but are protected by patent laws only within the scope of the claims of the present invention.

Claims

1. Vertical integrated sewage treatment plant, including casing (100), casing (100) lower part intercommunication has inlet tube (13), casing (100) upper portion intercommunication has outlet pipe (34), its characterized in that, be equipped with tubaeform isolation cylinder (21) in casing (100), the horn mouth of tubaeform isolation cylinder (21) is towards casing (100) bottom, tubaeform isolation cylinder (21) separates casing (100) inner space into and is located tubaeform isolation cylinder (21) outlying sedimentation tank (3) and is located inside tubaeform isolation cylinder (21) and extend to sewage treatment zone (200) of casing (100) bottom, outlet pipe (34) and sedimentation tank (3) upper portion intercommunication; and a flow guide device for guiding the treated sewage flowing out of the top of the horn-shaped isolation cylinder (21) to flow to the bottom of the sedimentation tank (3) is arranged at the periphery of the horn-shaped isolation cylinder (21) in the shell (100).

2. The vertical integrated sewage treatment device according to claim 1, wherein the flow guide device comprises a horn-shaped flow guide cylinder (31) coaxially sleeved on the upper part of the horn-shaped isolation cylinder (21), the horn mouth of the horn-shaped flow guide cylinder (31) faces the bottom of the shell (100), the top end of the horn-shaped flow guide cylinder (31) is higher than the top end of the horn-shaped isolation cylinder (21), and the bottom end of the horn-shaped flow guide cylinder (31) is higher than the bottom of the sedimentation tank (3); an annular flow passage (32) is formed between the inner wall of the horn-shaped guide shell (31) and the outer wall of the horn-shaped isolation shell (21).

3. The vertical integrated sewage treatment device according to claim 2, wherein the bottom edge of the trumpet-shaped isolation cylinder (21) is connected with the inner wall of the housing (100); the bottom in sewage treatment district (200) is equipped with water distribution device (11), water distribution device (11) with inlet tube (13) intercommunication, the bottom intercommunication of sedimentation tank (3) has outer back flow (35), outer back flow (35) with water distribution device (11) intercommunication.

4. The vertical integrated sewage treatment device according to claim 2, wherein the bottom edge of the horn-shaped isolation cylinder (21) is connected with the inner wall of the shell (100), a plurality of return ports (41) are formed in the connection position along the circumferential direction of the shell (100), and the return ports (41) are connected with an inner return pipe (42) leading to the sewage treatment area (200).

5. The vertical integrated sewage treatment device according to claim 2, wherein an annular backflow flow channel (43) is formed between the bottom edge of the horn-shaped separation cylinder (21) and the inner wall of the housing (100).

6. The vertical integrated sewage treatment device according to claim 2, wherein any cross section of the trumpet-shaped guide cylinder (31) is circular or regular n-sided, and n is more than or equal to 4 or rectangular.

7. The vertical integrated sewage treatment device according to any one of claims 1 to 6, wherein any cross section of the shell (100) and any cross section of the trumpet-shaped isolation cylinder (21) are respectively circular or regular n-sided polygon, and n is more than or equal to 4 or rectangular.

8. The vertical integrated sewage treatment device according to claim 1, wherein a water distribution device (11) and a sludge and air discharge pipe (15) are arranged at the bottom of the sewage treatment area (200), and the water distribution device (11) is communicated with the water inlet pipe (13); a water outlet collecting tank (33) is arranged at the upper part of the sedimentation tank (3), and the water outlet collecting tank (33) is communicated with a water outlet pipe (34); the bottom of the sedimentation tank (3) is communicated with an outer return pipe (35), and the outer return pipe (35) is communicated with the water distribution device (11) through the water inlet pipe (13).

9. The vertical integrated sewage treatment device according to claim 1, wherein the sewage treatment zone (200) at least comprises an anoxic zone (10) and an aerobic zone (20) from bottom to top, or an anaerobic zone is further arranged at the lower part of the anoxic zone (10); an air charging device (22) is arranged at the bottom of the aerobic zone (20), and the air charging device (22) is communicated with an air inlet pipeline (23).

10. The vertical integrated sewage treatment device according to claim 1, wherein the cross-sectional geometrical dimension of the housing (100) corresponding to the portion above the bottom of the sedimentation tank (3) is larger than the cross-sectional geometrical dimension thereof corresponding to the bottom of the sedimentation tank (3).