CN214105999U

CN214105999U - Sewage treatment equipment

Info

Publication number: CN214105999U
Application number: CN202121871347.5U
Authority: CN
Inventors: 余明达; 王辉; 韩增辉; 潘静怡
Original assignee: Hunan Xiangxin Water Environmental Protection Investment And Construction Co ltd
Current assignee: Hunan Xiangxin Water Environmental Protection Investment And Construction Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-09-03
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a sewage treatment device, include: a sewage inlet pipe, an annular tank body, a plurality of groups of water distribution pipes, an effluent weir and a sludge discharge device. The inner space of the annular tank body is divided into an anaerobic tank, an aerobic tank and a sedimentation tank which are sequentially communicated, wherein the anaerobic tank is arranged at the middle upper part of the inner space of the annular tank body, the aerobic tank is arranged below the anaerobic tank, and the sedimentation tank is arranged at the outer sides of the anaerobic tank and the aerobic tank in a surrounding manner; the water distribution pipes are arranged above the anaerobic tank at intervals and are communicated with one end of the sewage inlet pipe; the water outlet weir is arranged at the edge above the annular tank body and is communicated with the water outlet of the sedimentation tank; the sludge discharge device is used for discharging the sludge precipitated at the bottom of the sedimentation tank. The utility model discloses a sewage treatment device has the degree of integrating height, energy consumption low, the high-quality advantage of play water.

Description

Sewage treatment equipment

Technical Field

The utility model relates to a sewage treatment technical field, in particular to sewage treatment equipment.

Background

In recent years, the urbanization process of China is rapidly developed, and urban sewage treatment plants are vigorously built, so that the direct pollution of sewage to the ecological environment is effectively avoided. Because the current sewage treatment system is usually formed by combining a plurality of structures, the integration degree is generally not high, the civil engineering and equipment investment cost is higher, and particularly, an aeration system, a reflux system and other equipment are required to be arranged in a biochemical reaction tank, so that the energy consumption of the sewage treatment system is higher, and the operation and the application of a small sewage plant are not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a sewage treatment device that degree of integrating is high.

According to the utility model discloses a sewage treatment device, include: a sewage inlet pipe, an annular tank body, a plurality of groups of water distribution pipes, an effluent weir and a sludge discharge device. The inner space of the annular tank body is divided into an anaerobic tank, an aerobic tank and a sedimentation tank which are sequentially communicated, wherein the anaerobic tank is arranged at the middle upper part of the inner space of the annular tank body, the aerobic tank is arranged below the anaerobic tank, and the sedimentation tank is arranged at the outer sides of the anaerobic tank and the aerobic tank in a surrounding manner; the water distribution pipes are arranged above the anaerobic tank at intervals and are communicated with one end of the sewage inlet pipe; the water outlet weir is arranged at the edge above the annular tank body and is communicated with the water outlet of the sedimentation tank; the sludge discharge device is used for discharging the sludge precipitated at the bottom of the sedimentation tank.

According to the utility model discloses above-mentioned embodiment's sewage treatment device has following beneficial effect at least: 1. the internal space of the annular tank body is divided into an anaerobic tank, an aerobic tank and a sedimentation tank which are communicated in sequence, so that the occupied area of equipment and the investment cost of the equipment can be greatly saved; 2. firstly, sewage is primarily degraded through the anaerobic tank, and then the sewage is further degraded through the aerobic tank, so that the quality of effluent can be optimized; 3. the sedimentation tank is arranged around the outer ring of the annular tank body and positioned outside the anaerobic tank and the aerobic tank, and the redundant space of the annular tank body can be fully utilized.

According to some embodiments of the present invention, the anaerobic tank is filled with a fixed filler for increasing the sludge concentration.

According to some embodiments of the present invention, the aerobic tank is filled with spherical packing.

According to some embodiments of the utility model, the sewage treatment device still includes agitating unit, agitating unit including arranging in actuating mechanism outside the annular tank body, with the actuating mechanism transmission is connected and is run through the anaerobism pond extends to the transmission shaft in good oxygen pond, fixes epaxial multiunit rotating vane of transmission.

According to some embodiments of the present invention, a backflow barrier is provided at a position close to the drain outlet of the aerobic tank.

According to some embodiments of the invention, the aerobic tank is separated from the sedimentation tank by a sludge slide plate and a perforated plate connected together.

According to some embodiments of the invention, the sedimentation tank is a tube settler or a plate settler.

According to some embodiments of the utility model, the sludge discharging device include with the sludge pump of sedimentation tank intercommunication, with the sludge discharge pipe of the delivery outlet intercommunication of sludge pump.

According to some embodiments of the utility model, the delivery outlet of sludge pump with be equipped with the mud back flow between the sewage inlet tube.

According to some embodiments of the utility model, the mud discharge pipe the input port of mud back flow with all establish ties between the delivery outlet of sludge pump has the mud control valve.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Reference numerals:

the device comprises a sewage inlet pipe 100, an annular tank body 200, an anaerobic tank 210, a fixed filler 211, an aerobic tank 220, a spherical filler 221, a reflux partition plate 222, a sedimentation tank 230, a sludge sliding plate 231 and a perforated plate 232;

the water distribution pipe 300, the water outlet weir 400, the sludge discharge device 500, the sludge pump 510, the sludge discharge pipe 520, the sludge return pipe 530 and the sludge control valve 540;

stirring device 600, drive mechanism 610, transmission shaft 620, rotating blade 630.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless explicitly defined otherwise, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention by combining the specific contents of the technical solutions.

Referring to fig. 1, for the utility model discloses a sewage treatment device, include: the sewage treatment system comprises a sewage inlet pipe 100, an annular tank 200, a plurality of groups of water distribution pipes 300, a water outlet weir 400 and a sludge discharge device 500.

The inner space of the annular tank body 200 is divided into an anaerobic tank 210, an aerobic tank 220 and a sedimentation tank 230 which are communicated in sequence. Organic pollutants in the sewage, especially organic pollutants difficult to biodegrade, are decomposed into small molecular organic acids by the abundant anaerobic and facultative floras in the anaerobic tank 210, and the small molecular organic acids enter the aerobic tank 220 to be further subjected to oxidative metabolism by microorganisms under aerobic conditions. Specifically, the anaerobic tank 210 is disposed at the middle upper portion of the inner space of the annular tank 200, and the aerobic tank 220 is disposed below the anaerobic tank 210.

The water distribution pipes 300 are arranged above the anaerobic tank 210 at intervals and are communicated with one end of the sewage inlet pipe 100, and sewage is firstly discharged into the water distribution pipes 300 from the sewage inlet pipe 100 and then discharged into the anaerobic tank 210 through the water distribution pipes 300.

The sewage flows into the sedimentation tank from the aerobic tank 220, and the sludge-water separation process is completed in the sedimentation tank 230, and specifically, the sedimentation tank 230 is arranged around the outer sides of the anaerobic tank 210 and the aerobic tank 220.

The water outlet weir 400 is arranged at the upper edge of the annular tank 200 and is communicated with the water outlet of the sedimentation tank 230, and further, the water outlet weir 400 is an annular weir, so that the water outlet is more stable and reliable.

The sludge discharging device 500 is used to discharge the sludge settled at the bottom of the settling tank 230.

In some embodiments of the present invention, the anaerobic tank 210 is filled with a fixed filler 211 for increasing the sludge concentration. The fixed filler 211 can further increase the sludge concentration in the anaerobic tank 210, thereby better constructing an anaerobic environment to primarily degrade pollutants in the sewage.

In some embodiments of the present invention, the aerobic tank 220 is filled with the spherical filler 221, the spherical filler 221 is adopted in the aerobic tank 220, and the sewage after the initial degradation in the anaerobic tank 210 is degraded again under the combined action of the activated sludge in the aerobic tank 220 and the biological film on the surface of the spherical filler 221.

In some embodiments of the present invention, the sewage treatment apparatus further comprises an agitator 600, the agitator 600 comprises a driving mechanism 610 disposed outside the ring-shaped tank 200, a transmission shaft 620 connected to the driving mechanism 610 and extending through the anaerobic tank 210 and into the aerobic tank 220, and a plurality of sets of rotating blades 630 fixed on the transmission shaft 620. The stirring device 600 can form internal reflux in the aerobic tank 220, thereby greatly promoting the composition of the multilayer biological film on the surface of the spherical filler 221 and forming an anoxic and aerobic alternate environment. Further, the rotating blade 630 is disposed in the middle of the aerobic tank 220, and the middle of the aerobic tank 220 has high stirring strength, sufficient oxygen dissolution and low oxygen content on both sides, so that the denitrification capability of the aerobic tank 220 can be improved.

In some embodiments of the present invention, a backflow baffle 222 is disposed near the drain of the aerobic tank 220. Under the stirring action of the stirring device 600, the sewage flows around the spherical filler 221 and the backflow partition plate 222, the lifting flow rate Q1 can generally reach 3-4 times of the inflow water flow rate, and the backflow flow rate Q2 can reach 2-3 times of the inflow water flow rate, so that the composition of a multilayer biological film on the surface of the filler can be greatly promoted, and the degradation capability of the aerobic tank 220 on pollutants in the sewage can be promoted.

In some embodiments of the present invention, the aerobic tank 220 is separated from the sedimentation tank 230 by the sludge sliding plate 231 and the perforated plate 232 which are connected together, the sewage portion degraded by the aerobic tank 220 flows into the sedimentation tank 230 through the perforated plate 232, and the sludge in the sewage is discharged into the bottom of the sedimentation tank 230 along with the sludge sliding plate 231.

The utility model discloses an in some embodiments, the sedimentation tank 230 adopts pipe chute or inclined plate sedimentation tank for pipe chute or inclined plate sedimentation tank, has improved the throughput of sedimentation tank 230, has shortened pollutant settling distance and settling time, has increased the area of sedimentation tank 230 to the treatment effeciency has been improved. After passing through the inclined pipe or the inclined plate, the sewage flows out of the effluent weir 400.

In some embodiments of the present invention, the sludge discharging device 500 comprises a sludge pump 510 communicated with the sedimentation tank 230, and a sludge discharging pipe 520 communicated with the output port of the sludge pump 510, wherein the sludge pump 510 first sucks the sludge precipitated at the bottom of the sedimentation tank 230, and then discharges the sludge through the sludge discharging pipe 520.

In some embodiments of the present invention, a sludge return pipe 530 is disposed between the output port of the sludge pump 510 and the sewage inlet pipe 100 to supply the amount of sludge in the anaerobic tank 210.

In some embodiments of the present invention, in order to control the proportion of the returned sludge, a sludge control valve 540 is connected in series between the input ports of the sludge discharge pipe 520 and the sludge return pipe 530 and the output port of the sludge pump 510, i.e. a sludge control valve 540 is connected in series between the input port of the sludge discharge pipe 520 and the output port of the sludge pump 510, and a sludge control valve 540 is also connected in series between the input port of the sludge return pipe 530 and the output port of the sludge pump 510.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An apparatus for treating wastewater, comprising:

a sewage inlet pipe (100);

the anaerobic tank comprises an annular tank body (200), the inner space of the annular tank body is divided into an anaerobic tank (210), an aerobic tank (220) and a sedimentation tank (230) which are communicated in sequence, the anaerobic tank (210) is arranged at the middle upper part of the inner space of the annular tank body (200), the aerobic tank (220) is arranged below the anaerobic tank (210), and the sedimentation tank (230) is arranged at the outer sides of the anaerobic tank (210) and the aerobic tank (220) in a surrounding manner;

a plurality of groups of water distribution pipes (300), wherein the water distribution pipes (300) are arranged above the anaerobic tank (210) at intervals and are communicated with one end of the sewage inlet pipe (100);

the water outlet weir (400) is arranged at the upper edge of the annular tank body (200) and is communicated with the water outlet of the sedimentation tank (230);

a sludge discharge device (500) for discharging the sludge settled at the bottom of the settling tank (230).

2. The wastewater treatment apparatus according to claim 1, wherein the anaerobic tank (210) is filled with a fixed filler (211) for increasing the sludge concentration.

3. The wastewater treatment plant according to claim 1, characterized in that the aerobic tank (220) is filled with spherical packing (221).

4. The wastewater treatment apparatus according to claim 3, further comprising a stirring device (600), wherein the stirring device (600) comprises a driving mechanism (610) disposed outside the annular tank (200), a transmission shaft (620) in transmission connection with the driving mechanism (610) and extending through the anaerobic tank (210) and to the aerobic tank (220), and a plurality of sets of rotating blades (630) fixed on the transmission shaft (620).

5. The wastewater treatment plant according to claim 4, characterized in that a return baffle (222) is provided adjacent to the discharge opening of the aerobic tank (220).

6. The wastewater treatment plant according to claim 1, characterized in that the aerobic tank (220) is separated from the sedimentation tank (230) by a sludge slide plate (231) and a perforated plate (232) connected together.

7. The wastewater treatment plant according to claim 1, wherein the sedimentation tank (230) is a tube settler or a plate settler.

8. The wastewater treatment plant according to claim 1, wherein the sludge discharge device (500) comprises a sludge pump (510) in communication with the sedimentation tank (230), a sludge discharge pipe (520) in communication with an output of the sludge pump (510).

9. The wastewater treatment plant according to claim 8, characterized in that a sludge return pipe (530) is provided between the output of the sludge pump (510) and the wastewater inlet pipe (100).

10. The wastewater treatment plant according to claim 9, characterized in that a sludge control valve (540) is connected in series between the sludge discharge pipe (520), the input of the sludge return pipe (530) and the output of the sludge pump (510).