CN215365128U

CN215365128U - A aeration tank for municipal sewage treatment

Info

Publication number: CN215365128U
Application number: CN202121515960.3U
Authority: CN
Inventors: 朱永生; 宝永祥; 洪云驹
Original assignee: Xinjiang Bisheng Keyuan Environmental Protection Co ltd
Current assignee: Xinjiang Bisheng Keyuan Environmental Protection Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-12-31
Anticipated expiration: 2031-07-05

Abstract

The utility model relates to the technical field of aeration equipment, and particularly discloses an aeration tank for municipal sewage treatment, which comprises: the pool body is connected with a water inlet pipe and a water outlet pipe; the rotating shaft is rotatably arranged in the tank body and is of a hollow structure, the rotating shaft is provided with stirring blades communicated with the rotating shaft, the stirring blades and the rotating shaft are both provided with through holes of a circular truncated cone structure, the bottom surface of the circular truncated cone structure with small radius is far away from the rotating shaft or the stirring blades, and the bottom surface is provided with a separation net; the driving mechanism is used for driving the rotating shaft to rotate; and the high-pressure fan is communicated with the rotating shaft and used for aerating the rotating shaft. This an aeration tank for municipal administration sewage treatment sets the aeration hole to round platform type structure to utilize high pressure positive blower and separate the net, avoid mud to block up the aeration hole on the one hand, on the other hand will be cut apart into the micro-bubble from the big bubble that the aeration hole produced, effectively improve the area of contact of dissolved oxygen and organic matter in the sewage, improve treatment effeciency.

Description

A aeration tank for municipal sewage treatment

Technical Field

The utility model relates to the technical field of aeration equipment, and particularly discloses an aeration tank for municipal sewage treatment.

Background

Aeration is a process of transferring and dispersing gas into liquid, and aims to obtain sufficient dissolved oxygen, prevent suspension in the tank from sinking, and strengthen contact between organic matters in the tank and microorganisms and the dissolved oxygen, so that the microorganisms in the tank can be guaranteed to perform oxidative decomposition on the organic matters in the sewage under the condition of sufficient dissolved oxygen.

The existing aeration device mostly generates large bubbles of more than 50 microns, so that the gas utilization rate is low and the aeration cost is high; or aeration holes of the used aeration device are easy to be blocked, which affects the normal operation of the equipment. Therefore, there is a need for an aeration apparatus for sewage treatment which has a high gas utilization rate and is free from clogging.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aeration tank for municipal sewage treatment, wherein aeration holes are arranged into a circular truncated cone structure, and a high-pressure fan and a separation net are utilized, so that the aeration holes are prevented from being blocked by sludge, large bubbles generated from the aeration holes are divided into tiny bubbles, the contact area of dissolved oxygen and organic matters in sewage is effectively increased, and the treatment efficiency is improved.

The utility model provides an aeration tank for municipal sewage treatment, which comprises:

the tank body is connected with a water inlet pipe and a water outlet pipe;

the rotating shaft is rotatably arranged in the tank body and is of a hollow structure, a plurality of stirring blades communicated with the rotating shaft are arranged on the rotating shaft, through holes of a circular truncated cone structure are formed in the rotating shaft and the stirring blades, the bottom surface with a small radius of the circular truncated cone structure is far away from the rotating shaft or the stirring blades, and a separation net is arranged on the bottom surface;

the driving mechanism is arranged on the outer side of the tank body and is used for driving the rotating shaft to rotate; and

and the high-pressure fan is communicated with the rotating shaft and is used for aerating in the rotating shaft.

Preferably, the water inlet pipe and the water outlet pipe are both provided with control valves.

Preferably, the driving mechanism is a driving motor, and an output shaft of the driving motor is fixedly connected with the rotating shaft.

Preferably, actuating mechanism sets up the top of cell body, the pivot is vertical to be set up, just one end of pivot runs through the roof of cell body and with actuating mechanism connects, and the other end is the free end.

Preferably, the high pressure positive blower sets up the outside lower extreme of cell body, be connected with communicating pipe on the high pressure positive blower, communicating pipe pass through the bearing with the pivot deviates from actuating mechanism's end connection.

Preferably, the bottom of the tank body is provided with support legs.

Preferably, be equipped with fill type discharge gate on the diapire of cell body, just be located on the diapire of cell body the cell body internalization is equipped with and is used for the shutoff the closing plate of fill type discharge gate, just the one end of closing plate is located in the cell body, the other end runs through the lateral wall of cell body is located the cell body is outside.

Preferably, dovetail grooves with opposite positions are formed in the bottom wall of the tank body, sliding blocks matched with the dovetail grooves are fixedly arranged on the lower surface of the sealing plate, and the sliding blocks are connected in the dovetail grooves in corresponding positions in a sliding mode.

Preferably, a handle is fixedly arranged at one end of the sealing plate positioned outside the tank body.

Preferably, the surface of the sealing plate is provided with a rubber sealing layer.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the aeration tank for municipal sewage treatment, the driving motor drives the rotating shaft to rotate, so that the stirring blades are driven to stir sewage in the tank body, the high-pressure fan aerates the rotating shaft, gas overflows from the through hole of the circular truncated cone-shaped structure through the hollow structure of the rotating shaft and the stirring blades, so that the through hole can be effectively prevented from being blocked by sludge in the sewage, meanwhile, the arrangement of the separation net can also divide the gas at the outlet of the through hole, so that the generated bubbles are micro-bubbles, the contact area of dissolved oxygen and organic matters in the sewage is increased, the treatment effect is effectively improved, and the aeration cost is reduced.

2. The butt is equipped with the closing plate on the diapire of cell body, and the upper strata after the discharge treatment is handled after water, the pulling closing plate can make fill type discharge gate and the inside intercommunication of cell body to the sediment that makes the production falls down from this fill type discharge gate department is automatic, accomplishes the emission of sediment.

3. When the tank body needs to be cleaned, cleaning water can be introduced into the tank body, high-pressure air is conveyed into the tank body through the high-pressure fan, and impact air flow is formed at the through hole by the high-pressure air, so that sundries attached to the separation net are washed away; meanwhile, in the rotating process of the stirring blades, due to the flowing effect of water flow, impurities attached to the tank body, the stirring blades and the rotating shaft can be washed away, and the purpose of cleaning is achieved; after the cleaning is finished, the sealing plate is pulled, so that the cleaning water can drive sundries to be discharged from the hopper-shaped discharge hole together, and the operation is simple and convenient.

Drawings

FIG. 1 is a schematic diagram of the structure of an aeration tank for municipal sewage treatment provided by the utility model;

FIG. 2 is an enlarged view at F of FIG. 1;

FIG. 3 is a schematic view of the connection between the sealing plate and the bottom wall of the tank body.

Description of reference numerals: 100-a pool body; 101-a water inlet pipe; 102-a water outlet pipe; 103-a control valve; 104-a bearing; 105-a leg; 106-bucket type discharge port; 107-sealing plate; 108-a dovetail groove; 109-a slider; 200-a rotating shaft; 201-stirring blade; 202-a through hole; 203-separation net; 300-a high pressure fan; 301-communicating tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, the aeration tank for municipal wastewater treatment according to the embodiment of the present invention includes a tank body 100, a rotating shaft 200, a driving mechanism and a high pressure fan 300, wherein the tank body 100 is connected with a water inlet pipe 101 and a water outlet pipe 102, wastewater to be treated enters from the water inlet pipe 101, treated water completely treated by the aeration tank is discharged through the water outlet pipe 102, and the water inlet pipe 101 and the water outlet pipe 102 are both provided with control valves 103; the rotating shaft 200 is rotatably arranged in the tank body 100, the rotating shaft 200 is provided with a stirring blade 201, the rotating shaft 200 and the stirring blade 201 are hollow structures which are communicated with each other, the stirring blade 201 and the rotating shaft 200 are both provided with through holes 202 of a circular truncated cone structure, the bottom surface of the circular truncated cone structure with small radius is far away from the rotating shaft 200 or the stirring blade 201, and the surface is provided with a separation net 203; the driving mechanism is used for driving the rotating shaft 200 to rotate; the high pressure fan 300 is communicated with the rotating shaft 200 and used for aerating the rotating shaft 200, and the high pressure fan 300 can be a constant Geer (HENGGEER) high pressure vortex fan.

During the use, driving motor drives pivot 200, thereby it stirs to drive stirring leaf 201 to the sewage in the cell body 100, high pressure positive blower 300 is to pivot 200 interior aeration, gaseous hollow structure through pivot 200 and stirring leaf 201, spill over from in the through-hole 202, because the through-hole 202 is round platform type structure, and be provided with on the through-hole 202 and separate net 203, can prevent effectively that the mud in the sewage from blockking up through-hole 202, it can also cut apart gaseous exit at the through-hole 202 to separate the setting of net 203 simultaneously, make the bubble of production be tiny bubble, the area of contact of dissolved oxygen with organic matter in the sewage has been increased, thereby effectively improve the treatment effect, the aeration cost is reduced.

In the above embodiment, the driving mechanism is a driving motor, and an output shaft of the driving motor is fixedly connected with the rotating shaft 200. Specifically, the method comprises the following steps: the driving mechanism is arranged at the top end of the tank body 100, the rotating shaft 200 is vertically arranged, one end of the rotating shaft 200 penetrates through the top wall of the tank body 100 and is connected with the driving mechanism, and the other end of the rotating shaft is a free end. Under this kind of setting, the rotatable bearing that is provided with on high pressure positive blower 300's the play tuber pipe, be provided with the conveyer belt on driving motor's the output shaft, the conveyer belt drives the bearing and rotates, bearing and pivot 200 rigid coupling, go out the tuber pipe and set up with pivot 200 at bearing department intercommunication, like this when driving motor passes through the conveyer belt and drives pivot 200 and rotate, high pressure positive blower 300 can be simultaneously to pivot 200 interior transport air.

As another embodiment of the present invention, the connection mode of the high pressure fan 300 and the rotating shaft 200 may be further configured as follows: the high pressure fan 300 is disposed at the lower end of the outer side of the tank body 100, the high pressure fan 300 is connected with a communication pipe 301, and the communication pipe 301 is connected with the end of the rotating shaft 200 departing from the driving mechanism through a bearing 104, please continue to refer to fig. 1.

As another preferred embodiment of the present invention, in order to facilitate the discharge of sludge generated after aeration treatment, legs 105 are provided at the bottom of the tank body 100. A hopper-shaped discharge port 106 is arranged on the bottom wall of the tank body 100, a sealing plate 107 for sealing the hopper-shaped discharge port 106 is movably arranged on the inner bottom wall of the tank body 100, one end of the sealing plate 107 is positioned in the tank body 100, and the other end of the sealing plate runs through the side wall of the tank body 100 and is positioned outside the tank body 100. After the treated upper layer treated water is discharged from the water outlet pipe 102, the sealing plate 107 is pulled, so that the hopper-shaped discharge port 106 is communicated with the inside of the tank body 100, and the generated precipitate automatically falls from the hopper-shaped discharge port 106.

In the above embodiment, as shown in fig. 3, in order to facilitate pulling of the sealing plate 107 and ensure the sealing performance between the sealing plate 107 and the bottom wall of the tank body 100, dovetail grooves 108 are formed on the bottom wall of the tank body 100 at opposite positions, a slider 109 matched with the dovetail grooves 108 is fixedly arranged on the lower surface of the sealing plate 107, the slider 109 is slidably connected in the corresponding dovetail grooves 108, and the slider 109 and the dovetail grooves 108 are arranged to facilitate pulling of the sealing plate 107 and to reduce the gap between the sealing plate 107 and the bottom wall of the tank body 100 as much as possible.

Preferably, a handle is fixedly arranged at one end of the sealing plate 107 positioned outside the tank body 100, and a rubber sealing layer is arranged on the surface of the sealing plate 107. The arrangement of the handle and the rubber sealing layer further ensures the convenience of the sealing plate 107 during pulling and the sealing performance between the sealing plate 107 and the bottom wall of the pool body 100.

It should be noted that when the tank body 100 needs to be cleaned, cleaning water can be introduced into the tank body, and high-pressure air is conveyed into the tank body 100 through the high-pressure fan 300, the high-pressure air forms an air flow at the through hole 202, so that impurities attached to the separation net 203 are washed away by the high-pressure air flow, and meanwhile, in the rotation process of the stirring blade 201, due to the flowing effect of water flow, impurities attached to the tank body 100, the stirring blade 201 and the rotating shaft 200 can also be washed away, so that the cleaning purpose is achieved; after the cleaning, the sealing plate 107 is pulled, so that the cleaning water drives the impurities to be discharged from the hopper-shaped discharge hole 106.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An aeration tank for municipal sewage treatment, comprising:

a tank body (100) connected with a water inlet pipe (101) and a water outlet pipe (102);

the rotating shaft (200) is rotatably arranged in the tank body (100), the rotating shaft (200) is of a hollow structure, a plurality of stirring blades (201) communicated with the rotating shaft (200) are arranged on the rotating shaft (200), through holes (202) of a circular truncated cone structure are formed in the rotating shaft (200) and the stirring blades (201), the bottom surface of the circular truncated cone structure with a small radius is far away from the rotating shaft (200) or the stirring blades (201), and a separation net (203) is arranged on the bottom surface;

the driving mechanism is arranged on the outer side of the tank body (100) and is used for driving the rotating shaft (200) to rotate; and

and the high-pressure fan (300) is communicated with the rotating shaft (200) and is used for aerating the rotating shaft (200).

2. The aeration tank for municipal sewage treatment according to claim 1, wherein a control valve (103) is provided on each of the inlet pipe (101) and the outlet pipe (102).

3. The aeration tank for municipal sewage treatment according to claim 1, wherein the driving mechanism is a driving motor, and an output shaft of the driving motor is fixedly connected to the rotating shaft (200).

4. The aeration tank for municipal sewage treatment according to claim 1, wherein the driving mechanism is disposed at the top end of the tank body (100), the rotating shaft (200) is vertically disposed, and one end of the rotating shaft (200) penetrates through the top wall of the tank body (100) and is connected with the driving mechanism, and the other end is a free end.

5. The aeration tank for municipal sewage treatment according to claim 1, wherein the high pressure fan (300) is disposed at the outer lower end of the tank body (100), a communicating pipe (301) is connected to the high pressure fan (300), and the communicating pipe (301) is connected to the end of the rotating shaft (200) away from the driving mechanism through a bearing (104).

6. The aeration tank for municipal sewage treatment according to claim 1, wherein feet (105) are provided at the bottom of the tank body (100).

7. The aeration tank for municipal wastewater treatment according to claim 6, wherein a hopper-shaped discharge outlet (106) is provided on the bottom wall of the tank body (100), a sealing plate (107) for sealing the hopper-shaped discharge outlet (106) is movably provided on the bottom wall of the tank body (100) and inside the tank body (100), and one end of the sealing plate (107) is located inside the tank body (100) and the other end thereof penetrates through the side wall of the tank body (100) and is located outside the tank body (100).

8. The aeration tank for the municipal sewage treatment according to claim 7, wherein dovetail grooves (108) are formed in the bottom wall of the tank body (100) in opposite positions, slide blocks (109) matched with the dovetail grooves (108) are fixedly arranged on the lower surface of the sealing plate (107), and the slide blocks (109) are slidably connected in the dovetail grooves (108) in the corresponding positions.

9. The aeration tank for municipal sewage treatment according to claim 7, wherein a handle (110) is fixedly attached to one end of the sealing plate (107) located outside the tank body (100).

10. The aeration tank for municipal sewage treatment according to claim 7, wherein the surface of the sealing plate (107) is provided with a rubber sealing layer.