CN216106232U

CN216106232U - Rural sewage treatment plant of low energy consumption

Info

Publication number: CN216106232U
Application number: CN202122752501.3U
Authority: CN
Inventors: 王学科; 谢迎辉; 刘春良; 焦海亮; 张春苗; 穆童
Original assignee: Tianjin Enew Environmental Protection Engineering Co ltd
Current assignee: Tianjin Enew Environmental Protection Engineering Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-03-22
Anticipated expiration: 2031-11-10

Abstract

The utility model provides a low-energy-consumption rural sewage treatment device, which relates to the field of rural sewage treatment and comprises an outer tank body, an inner cylinder body, a stirring mechanism and an aeration mechanism, wherein the inner cylinder body divides the inner space of the outer tank body into an outer cavity and an inner cavity which are communicated with each other, and the stirring mechanism comprises a motor, a rotating shaft and stirring blades; meanwhile, the occupied area is saved; the outer cavity of the utility model forms a shrinkage area from bottom to top, and can form a gas stripping effect during aeration, thereby fully utilizing the aeration capacity of an external gas source; the sewage can effectively improve the backflow amount in the inner cylinder body, and the sewage treatment capacity and efficiency are improved; because no power equipment is installed underwater, the maintenance cost is reduced.

Description

Rural sewage treatment plant of low energy consumption

Technical Field

The utility model relates to the field of rural sewage treatment, in particular to a low-energy-consumption rural sewage treatment device.

Background

With the development and progress of rural agriculture in China, the number of rural tap water users is continuously increased, the generation amount of domestic sewage is also continuously increased, compared with the urban domestic sewage treatment difficulty is higher due to the shortage of infrastructure and the living dispersity, and when the domestic sewage is randomly discharged, the rural water environment has the risks of damage and pollution, so that the living environment and quality of residents are seriously influenced.

The existing domestic sewage treatment method mainly adopts a method of primary pretreatment and secondary biochemical treatment, mainly comprises a biological contact method, an SBR method, an oxidation ditch method and the like, but the existing sludge treatment system and equipment have the disadvantages of complex operation, non-compact structure, high energy consumption, low treatment efficiency and difficulty in adapting to rural areas.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a low-energy-consumption rural sewage treatment device.

The utility model is realized by the following technical scheme: a low-energy-consumption rural sewage treatment device, which comprises an outer tank body, an inner cylinder body, a stirring mechanism and an aeration mechanism, wherein,

the inner barrel divides the inner space of the outer tank into an outer cavity and an inner cavity which are communicated, the upper end of the inner barrel forms a water falling weir, the inner barrel is of a funnel structure which is communicated up and down, the lower part of the outer cavity is provided with a water inlet and a sludge discharge port, the water inlet and the sludge discharge port are arranged at two sides of the outer tank, and the upper part of the inner cavity is provided with a water outlet;

the aeration mechanism comprises a plurality of groups of aeration heads communicated with an external air source, and the aeration heads are arranged at the lower part of the outer cavity and positioned at the upper side of the lower end outlet of the inner cylinder;

the stirring mechanism comprises a motor, a rotating shaft and stirring blades, the motor drives the stirring blades to rotate through the rotating shaft, and the stirring blades are arranged below the aeration head.

According to above-mentioned technical scheme, preferred, the inboard upper portion of interior barrel be equipped with outer jar of body top fixed connection's inner wall, the inner wall extends downwards inside the funnel structure.

According to the technical scheme, preferably, the outer cavity is divided into an aerobic zone and an anoxic zone which are communicated up and down through the aeration head, and the water inlet is communicated with the anoxic zone.

According to the technical scheme, preferably, the inner side wall of the anoxic zone is uniformly provided with a plurality of groups of spoilers.

According to the technical scheme, preferably, the rotating shaft is arranged in the inner cylinder body, and the central axes of the rotating shaft, the inner cylinder body and the outer tank body are overlapped.

According to the technical scheme, preferably, the front end of the water outlet is provided with a water outlet weir.

The utility model has the beneficial effects that:

(1) the utility model effectively reduces the installation quantity of equipment, greatly saves the operation energy consumption and improves the stability of the process operation; meanwhile, the occupied area is saved;

(2) the outer cavity of the utility model forms a shrinkage area from bottom to top, and can form a gas stripping effect during aeration, thereby fully utilizing the aeration capacity of an external gas source;

(3) the sewage can effectively improve the backflow amount in the inner cylinder body, and the sewage treatment capacity and efficiency are improved;

(4) because no power equipment is installed underwater, the maintenance cost is reduced.

Drawings

FIG. 1 shows a schematic structural diagram according to an embodiment of the utility model;

FIG. 2 is a schematic diagram of a structure in operation according to an embodiment of the present invention;

in the figure: 1. an outer tank body; 2. an inner cylinder; 3. a stirring mechanism; 4. an aeration mechanism; 5. an outer cavity; 6. an inner cavity; 7. a water falling weir; 8. a water inlet; 9. a sludge discharge port; 10. a water inlet flow channel; 11. an aeration head; 12. an aerobic zone; 13. an anoxic zone; 14. a motor; 15. a rotating shaft; 16. stirring blades; 17. a spoiler; 18. and (4) an effluent weir.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

As shown in the figure, the utility model provides a low-energy-consumption rural sewage treatment device, which comprises an outer tank body 1, an inner cylinder body 2, a stirring mechanism 3 and an aeration mechanism 4, wherein,

the inner barrel 2 divides the inner space of the outer tank body 1 into an outer cavity 5 and an inner cavity 6 which are communicated, the upper end of the inner barrel 2 forms a water falling weir 7, the inner barrel 2 is of a funnel structure which is communicated up and down, the lower part of the outer cavity 5 is provided with a water inlet 8 and a mud discharging port 9, the water inlet 8 and the mud discharging port 9 are arranged at two sides of the outer tank body 1, the upper part of the inner cavity 6 is provided with a water outlet, the upper part of the inner side of the inner barrel 2 is provided with an inner wall which is fixedly connected with the top of the outer tank body 1, the inner wall extends downwards to the inside of the funnel structure, and a water inlet flow channel 10 entering the inner cavity 6 is formed between the inner wall and the inner barrel 2;

meanwhile, the aeration mechanism 4 comprises a plurality of groups of aeration heads 11 communicated with an external air source, the aeration heads 11 are distributed at the lower part of the outer cavity 5 and are positioned at the upper side of the outlet at the lower end of the inner barrel 2, the external air source is preferably a blower, the outer cavity 5 is divided into an aerobic zone 12 and an anoxic zone 13 which are communicated up and down through the aeration heads 11, and the water inlet 8 is communicated with the anoxic zone 13;

the stirring mechanism 3 comprises a motor 14, a rotating shaft 15 and stirring blades 16, the motor 14 drives the stirring blades 16 to rotate through the rotating shaft 15, and the stirring blades 16 are arranged below the aeration head 11.

According to the above embodiment, preferably, the inner side wall of the anoxic zone 13 is uniformly provided with a plurality of groups of spoilers 17, which can form an omnidirectional three-dimensional stirring for the mud-water mixture together with the stirring blades 16.

Further, the rotating shaft 15 is arranged in the inner cylinder 2, and the central axes of the rotating shaft 15, the inner cylinder 2 and the outer cylinder 1 are overlapped, so that the mixing uniformity of the sludge and the sewage is effectively enhanced.

Furthermore, the front end of the water outlet is provided with a water outlet weir 18 which effectively controls water flow and liquid level.

The utility model also provides a low-energy-consumption rural sewage treatment method, and the low-energy-consumption rural sewage treatment device comprises the following steps:

and (3) biochemical process: sewage enters an anoxic zone 13 of the outer cavity 5 along the water inlet 8, is mixed with air sprayed by the aeration mechanism 4, enters an aerobic zone 12 after being mixed, forms an air stripping effect, and flows upwards to the top of the outer cavity 5, so that the biochemical process of the sewage is realized;

and (3) a separation process: the gas continuously rises and is discharged, the sewage and the sludge enter the inner cavity 6 through the water falling weir 7, and the sludge continuously slides downwards through the inner cavity due to the particle size and gravity difference, so that the solid-liquid separation is completed; the sludge sinks to the lower part of the inner cavity 6 until entering the anoxic zone 13, the return flow of the sludge is realized, the treated water is discharged through the water outlet, the whole separation process of gas, water and sludge only needs the air blower to complete the return flow, and compared with the traditional sewage treatment biochemical section, the internal and external return pumps are saved, and the energy consumption is reduced.

The utility model has the beneficial effects that:

(2) the outer cavity 5 of the utility model forms a shrinkage area from bottom to top, and can form a gas stripping effect during aeration, thereby fully utilizing the aeration capacity of an external gas source;

(3) the sewage can effectively improve the backflow amount in the inner cylinder body 2, and the sewage treatment capacity and efficiency are improved;

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low-energy-consumption rural sewage treatment device which is characterized by comprising an outer tank body, an inner cylinder body, a stirring mechanism and an aeration mechanism, wherein,

the inner cylinder body divides the inner space of the outer tank body into an outer cavity and an inner cavity which are communicated, the upper end of the inner cylinder body forms a water falling weir, the inner cylinder body is of a funnel structure which is communicated up and down, the lower part of the outer cavity body is provided with a water inlet and a sludge discharge port, the water inlet and the sludge discharge port are arranged on two sides of the outer tank body, and the upper part of the inner cavity body is provided with a water outlet;

the aeration mechanism comprises a plurality of groups of aeration heads communicated with an external air source, and the aeration heads are arranged at the lower part of the outer cavity and positioned at the upper side of the lower end outlet of the inner barrel;

2. The rural sewage treatment plant of low energy consumption of claim 1, wherein the inner upper part of the inner cylinder is provided with an inner wall fixedly connected with the top of the outer tank body, and the inner wall extends downwards to the inside of the funnel structure.

3. The rural sewage treatment plant of claim 2 with low energy consumption is characterized in that the outer cavity is divided into an aerobic zone and an anoxic zone which are communicated up and down through the aeration head, and the water inlet is communicated with the anoxic zone.

4. The rural sewage treatment plant of claim 3 with low energy consumption is characterized in that a plurality of groups of spoilers are uniformly arranged on the inner side wall of the anoxic zone.

5. The rural sewage treatment plant of claim 3 with low energy consumption is characterized in that the rotating shaft is arranged in the inner cylinder body, and the central axes of the rotating shaft, the inner cylinder body and the outer tank body are coincident.

6. The low-energy-consumption rural sewage treatment device according to claim 3, wherein the front end of the water outlet is provided with a water outlet weir.