CN212374995U

CN212374995U - Integrated SBR reaction device for rural domestic sewage treatment

Info

Publication number: CN212374995U
Application number: CN202020805918.4U
Authority: CN
Inventors: 王巧; 肖光雨; 陈小珍
Original assignee: Hunan University Design Institute Co ltd
Current assignee: Hunan University Design Institute Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-01-19
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to a distributed processing technology field of rural domestic sewage especially relates to an integration SBR reaction unit that rural domestic sewage treatment used, has solved among the prior art that rural distributed processing apparatus is complicated, the investment is big, and the operation energy consumption is higher, the maintenance technical requirement is higher, the higher problem of cost. An integrated SBR reaction device for treating rural domestic sewage comprises a box body, wherein the interior of the box body is divided into a regulation area and an SBR reaction area by a partition plate, and the top of the box body is respectively provided with a first cover plate and a second cover plate which are communicated with the regulation area and the SBR reaction area; the outside of box is equipped with the fan, and the air outlet of fan is equipped with the main trachea that one end inserted the box inside, and the tracheal one end of main trachea communicates respectively has trachea one, trachea two and trachea three of the same internal diameter. The utility model discloses a sequencing batch activated sludge reactor, and adjustment zone and SBR reaction zone adopt the layering overall arrangement, compact structure, area are little.

Description

Integrated SBR reaction device for rural domestic sewage treatment

Technical Field

The utility model relates to a distributed processing technology field of rural domestic sewage especially relates to an integration SBR reaction unit that rural domestic sewage treatment used.

Background

In vast rural areas of China, domestic sewage generated by villages and residents with dispersed residents is directly discharged into a river channel to cause non-point source pollution, and if a centralized treatment mode is adopted, a large number of official nets need to be built, so that the cost is very high. The distributed rural sewage treatment facility is more economical and practical.

The biochemical treatment technology of domestic sewage is mature at present, and the alternative processes comprise a common activated sludge method, an oxidation ditch method, a Sequencing Batch Reactor (SBR), A2O and the like, and evolution processes, and also an ecological treatment method suitable for mountainous towns, such as an artificial wetland, and a combined process of aerobic treatment, namely 'contact aerobic + artificial wetland'. The SBR process is different from a continuous flow treatment process which is divided by space, does not need to return sludge, does not have a special anaerobic zone, an anoxic zone and an aerobic zone, and carries out stirring, aeration and precipitation in different periods in the same container to form an anaerobic and aerobic alternate treatment process. The method is suitable for medium and small sewage treatment plants.

However, the existing commonly used integrated SBR reaction device usually needs to be provided with a civil engineering adjusting tank, and system equipment comprises a lift pump, a fan and a decanter, so that the rural distributed treatment equipment is complex, large in occupied area, large in investment, high in operation energy consumption, high in maintenance technical requirement and high in cost.

Therefore, the SBR reactor is to be further optimized, making it more economical and practical.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integration SBR reaction unit that rural domestic sewage treatment used, separate into regulatory region and SBR reaction zone with the water tank through the baffle, it needs to be equipped with the civil engineering equalizing basin to have solved among the prior art, system's equipment includes the elevator pump, the fan with strain the hydrophone, it is complicated to rural distributed treatment facility, the investment is big, the running energy consumption is higher, it is higher to maintain the technical requirement, the higher problem of cost, this scheme is the sequencing batch type activated sludge reactor, and regulatory region and SBR reaction zone adopt the layering overall arrangement, compact structure, area is little.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an integrated SBR reaction device for treating rural domestic sewage comprises a box body, wherein the interior of the box body is divided into a regulation area and an SBR reaction area by a partition plate, and the top of the box body is respectively provided with a first cover plate and a second cover plate which are communicated with the regulation area and the SBR reaction area;

a fan is arranged on the outer side of the box body, a main air pipe with one end inserted into the box body is arranged at an air outlet of the fan, one end of the main air pipe is respectively communicated with a first air pipe, a second air pipe and a third air pipe which have the same inner diameter, the first air pipe, the second air pipe and the third air pipe control exhaust through control valves, the exhaust end of the first air pipe is located in the adjusting area, and the second air pipe and the third air pipe are located in the SBR reaction area;

one end of the adjusting area penetrates through the water inlet pipe of the box body, a basket type grating is arranged inside the adjusting area, and when sewage of the water inlet pipe flows into the adjusting area, the basket type grating preliminarily filters the sewage;

an aerator communicated with a third air pipe is arranged inside the SBR reaction area, a water outlet pipe with one end penetrating through the box body is arranged inside the SBR reaction area, the water inlet end of the water outlet pipe is in a bell mouth shape, and the air outlet end of the first air pipe is in a bell mouth shape inserted into the water outlet pipe;

the adjustment zone is communicated with the SBR reaction zone through a communicating pipe, the sewage in the adjustment zone is conveyed to the SBR reaction zone through the communicating pipe, the water inlet end of the communicating pipe is in a horn mouth shape, and the air outlet end of the air pipe III is in a horn mouth shape inserted into the water pipe.

Preferably, the basket type grating is connected with the inner wall of the box body in a sliding mode.

Preferably, the first cover plate and the second cover plate are both circular or square, and the diameter or the side length of the inspection hole of the cover plate is 600-800 mm.

Preferably, the inner diameters of the water inlet pipe and the water outlet pipe are the same as the inner diameter of the communicating pipe, and the cross-sectional area ratio of the first air pipe to the communicating pipe is 1: 2.

Preferably, the distance between the horn interfaces of the air pipe II and the water outlet pipe and the bottom of the inner wall of the box body is 150-200 mm.

Preferably, the volume ratio of the adjusting zone to the SBR reaction zone is 2-1.5: 1.5-1.

Preferably, the distance between the grid bars obtained by the basket type grid is 15-40 mm.

Preferably, the horn interface of the second air pipe and the water outlet pipe is positioned at 1/2-1/3 parts of the upper part of the SBR reaction zone.

The utility model discloses possess following beneficial effect at least:

compared with the prior art, the system equipment comprises a lifting pump, a fan and a decanter, the occupied area is large, the scheme is a sequencing batch activated sludge reactor, and the adjusting area and the SBR reaction area are in layered arrangement, so that the structure is compact and the occupied area is small;

air pressure in the box body is lifted through the fan and the air pipe, sewage is forced to be discharged along the water pipe, compared with the prior art, system equipment comprises a lifting pump, a fan and a decanter, rural distributed treatment equipment is complex, investment is large, operation energy consumption is high, maintenance technical requirements are high, cost is high, in the scheme, air lifting is adopted for sewage conveying, the air lifting type aeration system and the aeration system share fan equipment, equipment such as the lifting pump and the decanter is simplified and removed, equipment cost and energy consumption are greatly reduced, and equipment idle rate and equipment fault risk are remarkably reduced.

The aerator is a tubular microporous aerator, and has high oxygen utilization rate, good treatment effect and easy maintenance.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a rear partial sectional view of fig. 1.

In the figure: 1. a box body; 2. a partition plate; 3. a regulatory region; 4. an SBR reaction zone; 5. a fan; 6. a main air pipe; 7. a first trachea; 8. a second trachea; 9. a third trachea; 10. controlling a valve gate; 11. an aerator; 12. a basket-type grid; 13. a water inlet pipe; 14. a communicating pipe; 15. a water outlet pipe; 16. a first cover plate; 17. and a second cover plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-2, an integrated SBR reaction device for rural domestic sewage treatment comprises a box body 1, the interior of the box body 1 is divided into a regulation area 3 and an SBR reaction area 4 through a partition plate 2, the bottom of the partition plate 2 and the inner wall of the bottom of the box body 1 are supported through supporting blocks, the stability of the partition plate 2 is guaranteed, a first cover plate 16 and a second cover plate 17 which are communicated with the regulation area 3 and the SBR reaction area 4 are respectively arranged at the top of the box body 1, the isolation area and the SBR reaction area 4 and the corresponding cover plates guarantee the sealing performance of the areas, the residence time of sewage in the regulation area 3 is 6-8 hours, so that the impact of water quality and water quantity on the SBR reaction area 4 is reduced, and the stable operation of a;

a fan 5 is arranged on the outer side of the box body 1, a main air pipe 6 with one end inserted into the box body 1 is arranged at an air outlet of the fan 5, one end of the main air pipe 6 is respectively communicated with a first air pipe 7, a second air pipe 8 and a third air pipe 9 with the same inner diameter, the first air pipe 7, the second air pipe 8 and the third air pipe 9 control exhaust through a control valve brake 10, the exhaust end of the first air pipe 7 is positioned in the adjusting area 3, and the second air pipe 8 and the third air pipe 9 are positioned in the SBR reaction area 4;

a water inlet pipe 13 with one end penetrating through the box body 1 is arranged in the adjusting area 3, a basket type grating 12 is arranged in the adjusting area 3, and when sewage of the water inlet pipe 13 flows into the adjusting area 3, the basket type grating 12 primarily filters the sewage;

an aerator 11 communicated with a third air pipe 9 is arranged inside the SBR reaction zone 4, a water outlet pipe 15 with one end penetrating through the box body 1 is arranged inside the SBR reaction zone 4, the water outlet bottom elevation of the upper end of the water outlet pipe 15 is higher than the water surface of the reaction zone, the water inlet end of the water outlet pipe 15 is in a bell mouth shape, and the air outlet end of the first air pipe 7 is in a bell mouth shape inserted into the water outlet pipe 15;

regulation area 3 and SBR reaction area 4 are through communicating pipe 14 intercommunication, and the upper end of communicating pipe 14 is gone out the bottom of water elevation and should be higher than the 3 surface of water in regulation area, and communicating pipe 14 carries the sewage of regulation area 3 to SBR reaction area 4, and the end of intaking of communicating pipe 14 is the horn mouth form, and the end of giving vent to anger of trachea three 9 is for inserting the inside horn mouth form of water pipe.

The scheme has the following working processes:

when rural sewage is treated, sewage enters from a water inlet pipe 13, the sewage enters into a regulation area 3 through a basket type grating 12, the basket type grating 12 filters large-particle garbage in the sewage, after the sewage is kept still in the regulation area 3 for a period of time, a fan 5 is started, a control valve gate 10 of a first air pipe 7 is opened, the fan 5 blows air, the air is discharged from a bell-mouthed end of the first air pipe 7, the air pressure in the regulation area 3 is increased, the sewage is subjected to the pressure in a box body 1 and the air flow of the bell-mouthed end of the first air pipe 7, the sewage is discharged from a communicating pipe 14, the sewage enters into an SAR reaction area to react, in the reaction process, the fan 5 is started again, the control valve gate 10 of a third air pipe 9 is opened, the air is discharged from the surface of an aerator 11 to treat the sewage, the clear liquid of the sewage is layered with turbid liquid, finally, the control valve gate 10 of the third air, the air pressure in the SBR reaction zone 4 is increased, the bell mouth of the air pipe II 8 blows air, the supernatant is discharged along with the blowing pipe, and the sewage treatment is finished.

According to the working process, the following steps are known:

the water tank is divided into a regulating area 3 and an SBR reaction area 4 through the partition board 2, compared with the prior art, the system equipment comprises a lifting pump, a fan 5 and a decanter, the occupied area is large, the scheme is a sequencing batch activated sludge reactor, and the regulating area 3 and the SBR reaction area 4 adopt a layered layout, the structure is compact, and the occupied area is small;

air pressure in the box body 1 is lifted through the fan 5 and the air pipe, sewage is forced to be discharged along the water pipe, compared with the prior art, system equipment comprises a lifting pump, the fan 5 and a decanter, rural distributed treatment equipment is complex and large in investment, high in operation energy consumption, high in maintenance technical requirement and high in cost, the sewage conveying in the scheme adopts an air lifting mode, the fan 5 equipment is shared by the sewage conveying system and an aeration system, equipment such as the lifting pump, the decanter and the like is simplified and removed, equipment cost and energy consumption are greatly reduced, and equipment idle rate and equipment fault risk are remarkably reduced.

Furthermore, the basket type grating 12 is connected with the inner wall of the box body 1 in a sliding mode, so that the basket type grating 12 and the box body 1 can be conveniently disassembled and assembled, and the basket type grating 12 is conveniently pulled out to intercept the garbage for clearing and transporting.

Further, the first cover plate 16 and the second cover plate 17 are circular or square, and the diameter or side length of the inspection hole of the cover plate is 600-800 mm, so that the basket grid can be conveniently cleaned and the pipe fittings and the gate valve can be conveniently maintained.

Furthermore, the inner diameters of the water inlet pipe 13 and the water outlet pipe 15 are the same as the inner diameter of the communicating pipe 14, and the cross-sectional area ratio of the first air pipe 7 to the communicating pipe 14 is 1:2, so that the first air stripping system has certain sludge lifting capacity while lifting sewage.

Further, the distance between the horn interfaces of the second air pipe 8 and the water outlet pipe 15 and the bottom of the inner wall of the box body 1 is 150-200 mm, so that excessive deposition of silt and sludge in the adjusting area 3 is avoided.

Furthermore, the volume ratio of the adjusting area 3 to the SBR reaction area 4 is 2-1.5: 1.5-1, so that the sewage can be reacted conveniently.

Furthermore, the distance between the grid bars obtained by the basket type grid 12 is 15-40 mm, so that the basket type grid 12 can conveniently isolate the garbage in the sewage.

Furthermore, the horn interface of the second air pipe 8 and the water outlet pipe 15 is positioned at 1/2-1/3 at the upper part of the SBR reaction zone 4 so as to avoid carrying scum and precipitated sludge when discharging supernatant.

And (3) discharging 1/3 reaction area sewage to a subsequent process, a sludge treatment unit or a sludge tank truck through a PLC control module in an aeration process at regular intervals so as to realize sludge discharge.

And the PLC control module is used for the automatic control and the remote control of the integrated device.

The PLC control module is connected with the control fan 5 and the control gate valve so as to improve the automation degree of the integrated device and realize the automatic control, remote control and multi-station centralized control of the integrated device.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An integrated SBR reaction device for rural domestic sewage treatment is characterized by comprising a box body (1), wherein the inside of the box body (1) is divided into a regulation area (3) and an SBR reaction area (4) through a partition plate (2), and the top of the box body (1) is respectively provided with a first cover plate (16) and a second cover plate (17) which are communicated with the regulation area (3) and the SBR reaction area (4);

a fan (5) is arranged on the outer side of the box body (1), a main air pipe (6) with one end inserted into the box body (1) is arranged at an air outlet of the fan (5), one end of the main air pipe (6) is respectively communicated with a first air pipe (7), a second air pipe (8) and a third air pipe (9) with the same inner diameter, the first air pipe (7), the second air pipe (8) and the third air pipe (9) control exhaust through a control valve brake (10), the exhaust end of the first air pipe (7) is located in the adjusting area (3), and the second air pipe (8) and the third air pipe (9) are located in the SBR reaction area (4);

a water inlet pipe (13) with one end penetrating through the box body (1) is arranged inside the adjusting area (3), a basket type grating (12) is arranged inside the adjusting area (3), and when sewage of the water inlet pipe (13) flows into the adjusting area (3), the basket type grating (12) primarily filters the sewage;

an aerator (11) communicated with a third air pipe (9) is arranged inside the SBR reaction zone (4), a water outlet pipe (15) with one end penetrating through the box body (1) is arranged inside the SBR reaction zone (4), the water inlet end of the water outlet pipe (15) is in a bell mouth shape, and the air outlet end of the first air pipe (7) is in a bell mouth shape inserted into the water outlet pipe (15);

regulation district (3) and SBR reaction area (4) are through communicating pipe (14) intercommunication, communicating pipe (14) carry the sewage of regulation district (3) to SBR reaction area (4), the end of intaking of communicating pipe (14) is the horn mouth form, the end of giving vent to anger of trachea three (9) is for inserting the inside horn mouth form of water pipe.

2. The integrated SBR reaction device for rural domestic sewage treatment according to claim 1, wherein the basket type grating (12) is connected with the inner wall of the box body (1) in a sliding way.

3. The integrated SBR reaction device for rural domestic sewage treatment according to claim 1, wherein the first cover plate (16) and the second cover plate (17) are both circular or square, and the diameter or side length of the inspection hole of the cover plates is 600-800 mm.

4. The integrated SBR reaction device for rural domestic sewage treatment according to claim 1, wherein the inner diameters of the water inlet pipe (13), the water outlet pipe (15) and the communicating pipe (14) are the same, and the cross-sectional area ratio of the first air pipe (7) to the communicating pipe (14) is 1: 2.

5. The integrated SBR reaction device for rural domestic sewage treatment according to claim 1, wherein the distance between the horn connectors of the second air pipe (8) and the water outlet pipe (15) and the bottom of the inner wall of the box body (1) is 150-200 mm.

6. The integrated SBR reaction device for rural domestic sewage treatment according to claim 1, wherein the volume ratio of the adjusting area (3) to the SBR reaction area (4) is 2-1.5: 1.5-1.

7. The integrated SBR reaction device for rural domestic sewage treatment according to claim 1, wherein the basket type grating (12) has a grating bar spacing of 15-40 mm.

8. The integrated SBR reaction device for rural domestic sewage treatment according to claim 1, wherein a horn interface of the second air pipe (8) and the water outlet pipe (15) is positioned at 1/2-1/3 of the upper part of the SBR reaction zone (4).