CN217265067U - Novel sewage biochemical equipment - Google Patents

Abstract

The invention provides a novel sewage biochemical device, which relates to the field of sewage treatment and comprises an outer tank body, an inner cylinder body, an aeration device and a stirring device, wherein the stirring device comprises a motor, a rotating shaft and stirring blades; meanwhile, the floor area is saved; the inner part of the outer tank body forms a reduction area from bottom to top, and can form a gas stripping effect during aeration, so that the aeration capacity of an external gas source is fully utilized; 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

Novel sewage biochemical equipment

Technical Field

The invention relates to the field of sewage treatment, in particular to novel sewage biochemical equipment and a method.

Background

With the rapid development of economy in China, the quantity of domestic water of residents is continuously increased, the production quantity of domestic sewage is also continuously increased, and when the domestic sewage is randomly discharged, the risks of damage to the surrounding water environment and secondary pollution exist, so that the living environment and quality of the 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 dispersed areas such as rural areas and the like.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and provides novel sewage biochemical equipment and a method.

The invention is realized by the following technical scheme: a novel sewage biochemical device, which comprises an outer tank body, an inner cylinder body, a stirring device and an aeration device, wherein,

the inner cylinder comprises a central cylinder and a reflux device, the upper end of the inner cylinder is provided with a water outlet weir, the inner cylinder is of a funnel structure which is communicated from top to bottom, one side of the top end of the outer tank body is provided with a water inlet, one side of the lower part of the inner cylinder is provided with a sludge discharge port, the water inlet and the sludge discharge port are arranged at the top and the side of the outer tank body, the water inlet extends to the bottom of the outer tank body, and the upper part of the inner cylinder is provided with a water outlet;

the aeration device comprises aeration heads and aeration pipes, the aeration heads are arranged at the lower part of the outer tank body and are positioned at the upper side of the outlet at the lower end of the inner barrel body, and the aeration heads are divided into a plurality of groups;

the stirring device 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 the technical scheme, preferably, the inner wall fixedly connected with the top of the outer tank body is arranged at the upper part of the inner side of the inner cylinder body.

According to the technical scheme, preferably, the reflux device of the inner cylinder body comprises reflux pipes and reflux ports, the number of the reflux devices is N (N is more than or equal to 1), and the reflux amount is 100-200%.

According to the technical scheme, preferably, the outer tank body 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, a plurality of groups of spoilers are uniformly arranged on the inner side wall of the anoxic zone.

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 invention also provides a novel sewage biochemical treatment method, which adopts the novel sewage biochemical treatment device and comprises the following steps:

and (3) biochemical process: the sewage enters the anoxic zone of the outer tank body along the water inlet, is mixed with the air sprayed by the aeration device, and then enters the aerobic zone after being mixed to form an air stripping effect, so that the sewage, the sludge and the air flow upwards to realize the biochemical process of the sewage;

and (3) a separation process: sewage and sludge enter the inner cylinder body through the return port, the sludge sinks to the lower part of the inner cylinder body through the return pipe until entering the anoxic zone, the return of the sludge is realized, and treated water is remained in the inner cylinder body and enters the water outlet through the water outlet weir to be discharged.

The invention has the beneficial effects that:

(1) the traditional AO + secondary sedimentation tank process is integrated in a vertical device, the traditional internal reflux pump and the traditional external reflux pump are replaced, and the occupied area and the operation energy consumption are greatly saved;

(2) a shrinkage area is formed in the outer tank body from bottom to top, a gas stripping effect can be formed during aeration, and the aeration capacity of an external gas source is fully utilized;

(3) the sewage can effectively control the backflow amount of the sewage at the backflow port of the inner cylinder body, and the sewage treatment efficiency is improved;

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

Drawings

FIGS. 1, 2, 3 show schematic structural diagrams according to embodiments of the present invention;

in the figure: 1. an outer tank body; 2. an inner cylinder; 3. an aeration device; 4. a stirring device; 5. a water inlet; 6. a water outlet; 7. a spoiler; 8. a sludge discharge port; 9. a return port; 10. a return pipe; 11. a central barrel; 12. a motor; 13. an effluent weir; 14. an aeration pipe; 15. an aeration head; 16. a rotating shaft; 17. a stirring blade; 18. an aerobic zone; 19. an anoxic zone.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the figure, the invention provides a novel sewage biochemical device, which comprises an outer tank body 1, an inner cylinder body 2, an aeration device 3 and a stirring device 4, wherein,

the upper end of interior barrel 2 forms out the mill weir 13, and interior barrel 2 is the funnel structure of upper and lower intercommunication, and outer jar of body top one side is equipped with water inlet 5, and lower part one side is equipped with mud discharging port 8, and water inlet 5 and mud discharging port 8 lay in outer jar of body 1's top and side, and the upper portion of interior barrel 2 is equipped with delivery port 6, and the inboard upper portion of interior barrel 2 is equipped with the inner wall with outer jar of body 1 top fixed connection.

Meanwhile, the aeration device 3 comprises a plurality of groups of aeration pipes 14 and aeration heads 15 which are communicated with an external air source, the aeration heads 15 are arranged at the lower part of the outer tank body 1 and are positioned at the upper side of the outlet at the lower end of the inner barrel body 2, the external air source is preferably a blower, the inner part of the outer tank body 1 is divided into an aerobic zone 18 and an anoxic zone 19 which are communicated up and down through the aeration heads 15, and the water inlet 5 is communicated with the anoxic zone 19;

the stirring device 4 comprises a motor 12, a rotating shaft 16 and stirring blades 17, the motor 12 drives the stirring blades 17 to rotate through the rotating shaft 16, and the stirring blades 17 are arranged below the aeration head 15.

According to the above embodiment, preferably, the inner side wall of the anoxic zone 19 is uniformly provided with a plurality of groups of spoilers 7, which can form an omnidirectional three-dimensional stirring for the mud-water mixture together with the stirring blades 17.

Furthermore, the rotating shaft 16 is arranged in the inner cylinder 2, and the central axes of the rotating shaft 16, the inner cylinder 2 and the outer tank 1 are superposed, 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 13, which effectively controls the liquid level in the inner cylinder body.

The invention also provides a novel sewage biochemical treatment method, and the novel sewage biochemical treatment equipment comprises the following steps:

and (3) biochemical process: the sewage enters the anoxic zone 19 of the outer tank body 1 along the water inlet 5, then is mixed with the air sprayed by the aeration device 3, and then enters the aerobic zone 18 after being mixed to form an air stripping effect, so that the sewage, the sludge and the air flow upwards to realize the biochemical process of the sewage;

and (3) a separation process: the gas continuously rises and is discharged out of the outer tank body 1, sewage and sludge enter the inner cylinder body 2 through the return port 9, due to the reason of poor gravity, the sludge rapidly sinks to the lower part of the inner cylinder body 2 through the return pipe 10 until entering the anoxic zone 19, the return of the sludge is realized, the solid-liquid separation process is completed, the treated water is remained in the inner cylinder body 2 and enters the water outlet 6 through the water outlet weir 13 to be discharged, the three-phase separation of mud, water and gas can be completed only through the air blower in the process, the inner and outer return pumps are saved, and the energy consumption and the cost are reduced.

The beneficial effects of the invention are:

(1) the invention integrates the traditional AO + secondary sedimentation tank process into a vertical device, replaces the traditional internal reflux pump and external reflux pump, and greatly saves the occupied area and the operation energy consumption;

(2) a shrinkage reducing area is formed in the outer tank body from bottom to top, a gas stripping effect can be formed during aeration, and the aeration capacity of an external gas source is fully utilized;

(3) the sewage can effectively control the backflow amount of the sewage at the backflow port of the inner cylinder body, and the sewage treatment efficiency is improved;

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

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 describing the invention and simplifying the description, but 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 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 invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g., as being fixed or detachable or integral; 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 present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, those skilled in the art will appreciate 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 (8)

1. A novel sewage biochemical device is characterized by comprising an outer tank body, an inner cylinder body, an aeration device and a stirring device, wherein,

the inner cylinder comprises a central cylinder and a reflux device, the upper end of the inner cylinder is provided with a water outlet weir, the inner cylinder is of a funnel structure which is communicated from top to bottom, one side of the top end of the outer tank body is provided with a water inlet, one side of the lower part of the outer tank body is provided with a sludge discharge port, the water inlet and the sludge discharge port are arranged at the top and the side of the outer tank body, the water inlet extends to the bottom of the outer tank body, and the upper part of the inner cylinder is provided with a water outlet;

the aeration device comprises an aeration pipe and a plurality of groups of aeration heads which are communicated with the outside, and the aeration heads are arranged at the lower part of the outer tank body and positioned at the upper side of the outlet at the lower end of the inner cylinder body;

the stirring device 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.

2. The novel sewage biochemical device as claimed in claim 1, wherein an inner wall fixedly connected with the top of the outer tank body is arranged at the upper part of the inner cylinder body.

3. The novel sewage biochemical device according to claim 1, wherein the reflux unit of the inner cylinder comprises reflux pipes and reflux ports, the number of the reflux units is set to be N (N is more than or equal to 1), and the reflux amount is 100-200%.

4. The biochemical sewage treatment equipment according to claim 2, wherein the outer tank is divided into an aerobic zone and an anoxic zone which are communicated with each other up and down by the aeration head, and the water inlet is communicated with the anoxic zone.

5. The biochemical sewage treatment equipment according to claim 4, wherein the inner side wall of the anoxic zone is uniformly provided with a plurality of groups of spoilers.

6. The novel sewage biochemical device according to claim 4, wherein 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.

7. The biochemical sewage treatment equipment according to claim 4, wherein the front end of the water outlet is provided with a water outlet weir.

8. A novel sewage biochemical apparatus, characterized in that the novel sewage biochemical apparatus according to any one of claims 3 to 7 is used, comprising the steps of:

and (3) biochemical process: the sewage enters the anoxic zone of the outer tank body along the water inlet, is mixed with the air sprayed by the aeration device, and then enters the aerobic zone after being mixed to form an air stripping effect, so that the sewage, the sludge and the air flow upwards to realize the biochemical process of the sewage;

and (3) a separation process: sewage and sludge enter the inner cylinder body through the return port, the sludge sinks to the lower part of the inner cylinder body through the return pipe until entering the anoxic zone, the return of the sludge is realized, and treated water is remained in the inner cylinder body and enters the water outlet through the water outlet weir to be discharged.

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