CN112979069B

CN112979069B - Multi-level efficient sewage treatment aeration equipment

Info

Publication number: CN112979069B
Application number: CN202110203928.XA
Authority: CN
Inventors: 凌雪木
Original assignee: China Railway Construction Development Group Co Ltd
Current assignee: China Railway Construction Development Group Co Ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2022-08-30
Anticipated expiration: 2041-02-23
Also published as: CN112979069A

Abstract

The invention discloses a multi-level high-efficiency sewage treatment aeration device which comprises an aeration tank, wherein a beam frame is arranged at the top end of the aeration tank, a motor is arranged at the top end of the beam frame, the output end of the motor penetrates through the beam frame and extends to the interior of the aeration tank, a fixed disc is connected to the bottom end of the fixed disc, a plurality of groups of filtering frameworks are arranged on the outer side of a water suction pipe, and the bottom end of the water suction pipe is positioned in the aeration tank and is connected with a water pumping port. The aeration device provided by the invention can make sewage fully contact with air, is beneficial to decomposition of organic pollutants, improves the sewage treatment effect and treatment efficiency, and is convenient for cleaning sludge and inspection and maintenance.

Description

Multi-level efficient sewage treatment aeration equipment

Technical Field

The invention belongs to the technical field of environmental protection equipment, and particularly relates to a multi-layer high-efficiency sewage treatment aeration device.

Background

Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as building, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and increasingly enters the daily life of common people, and is classified according to sewage sources, the sewage treatment is generally divided into production sewage treatment and domestic sewage treatment, the production sewage comprises industrial sewage, agricultural sewage, medical sewage and the like, and the domestic sewage is sewage generated in daily life, and refers to complex mixtures of inorganic substances and organic substances in various forms, including: floating and suspended large and small solid particles; ② colloidal and gelatinous dispersions; ③ pure solution; the sewage treatment method generally comprises three methods, namely a physical method, a chemical method and a biological method, wherein the biological method has high efficiency and low secondary pollution and is generally used, and an aeration tank is the most common used equipment.

Present sewage treatment technique is not mature yet, still has a lot of defects, aeration tank generally adopts vertical stirring leaf to stir the aeration to sewage like current, can't make the air fully contact with sewage to sewage treatment efficiency has been reduced, gaseous drive liquid flow in aeration process, inconvenient silt deposits, make aeration tank inconvenient handle silt, influence the sewage treatment quality, it is great in aeration tank volume moreover, the complicated inconvenient aeration tank's of inner structure maintenance and change.

Disclosure of Invention

The invention provides a multi-level efficient sewage treatment aeration device, which aims to solve the problems of low sewage filtering efficiency, inconvenience in sludge removal and complex structure and inconvenience in maintenance. The aeration device provided by the invention can make sewage fully contact with air, is beneficial to decomposition of organic pollutants, improves the sewage treatment effect and treatment efficiency, and is convenient for cleaning sludge and inspection and maintenance.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a multi-layer efficient sewage treatment aeration device comprises an aeration tank, wherein a beam frame is arranged at the top end of the aeration tank, a motor is mounted at the top end of the beam frame, the output end of the motor penetrates through the beam frame and extends to the interior of the aeration tank to be connected with a fixed disc, the bottom end of the fixed disc is connected with a water suction pipe, a plurality of groups of filtering frameworks are arranged on the outer side of the water suction pipe, a plurality of groups of filtering membranes are arranged on the outer wall of the filtering frameworks, and the bottom end of the water suction pipe is positioned in the aeration tank and is connected with a water suction port; a water inlet is formed in one side of the aeration tank, a plurality of groups of sewage storage boxes are formed in the bottom end of the aeration tank, and a plurality of groups of aeration pressure dividing pipes are formed in the outer side of the aeration tank below the water inlet; one side of each of the aeration pressure-dividing pipes is provided with an air inlet which is communicated with external air supply equipment, the inner side of each aeration pressure-dividing pipe is provided with a plurality of groups of aeration pipes, the aeration pipes penetrate through the outer wall of the aeration tank and extend to the interior of the aeration tank to be connected with an inner ring pipe, and the top ends of the aeration pipes and the inner ring pipe are provided with a plurality of groups of one-way air valves; the outer wall of the fixed disc is provided with a plurality of groups of floating foam sweeping plates, one side of each floating foam sweeping plate is provided with an installation insertion block, each floating foam sweeping plate is connected with the fixed disc in a clamping manner through the installation insertion block, a foam filling layer is arranged inside each floating foam sweeping plate, the outer wall of the aeration tank is provided with a floating foam outlet, and the top end of each floating foam outlet and the height of each floating foam sweeping plate are positioned on the same horizontal line; a pressing plate is arranged above the water pumping port and inside the aeration tank, and the water suction pipe is clamped and connected with the water pumping port through the pressing plate; the outer wall of the water absorption pipe is provided with a plurality of groups of supporting frames, the bottom end of each group of supporting frames is clamped with the inner wall of the aeration tank, the outer wall of each supporting frame is provided with a plurality of groups of sludge sweeping plates, and the outer wall of each group of sludge sweeping plates is provided with a plurality of groups of sludge attaching grooves.

Preferably, the buffer plate is arranged on the outer wall of the motor, the motor is fixedly connected with the beam frame through the buffer plate, the connecting ring is arranged on the outer side of the output end of the motor, the fixing plate is arranged on the outer wall of the connecting ring, and the output end of the motor is fixedly connected with the fixing disc through the connecting ring.

Preferably, the outer wall that absorbs water the pipe has seted up the first connecting pipe of multiunit, and the outer wall that absorbs water the pipe is located the top and the bottom of first connecting pipe and has all seted up the connecting block, and the ball has been seted up to the bottom that absorbs water the pipe, and the pipe that absorbs water passes through the ball and is connected with the mouth rotation that draws water.

Preferably, the outer wall of the aeration tank is provided with a climbing ladder.

Preferably, deposit the inside that the top opening of dirty box runs through the bottom of aeration tank and extend to the aeration tank, deposit the opening of dirty box and be located silt and sweep the below of board, deposit one side of dirty box and seted up the drain, and the drain runs through the outer wall of aeration tank and extends to the outside of aeration tank, and the internally mounted of drain has the valve.

Preferably, the second connecting pipe has been seted up to one side of filtering the skeleton, and the snap ring has been seted up to the outer wall of second connecting pipe, and the change has been cup jointed in the outside of second connecting pipe, the change passes through the snap ring and rotates with the second connecting pipe to be connected, one side of filtering the skeleton is located the top and the bottom of second connecting pipe and has all seted up spacing pin.

Preferably, the second connecting pipe passes through swivel and first connecting pipe fixed connection, the internally mounted of spacing pin has the bolt, and spacing pin passes through the bolt and is connected with the connecting block, the sealing ring has been seted up to one side of first connecting pipe, and first connecting pipe passes through the sealing ring and is connected with second connecting pipe block.

Compared with the prior art, the invention has the advantages and beneficial effects that:

1. the aeration device provided by the invention comprises a motor, a water suction pipe, a plurality of groups of filtering membranes, a water pumping port, an aeration pipe, an air valve, a floating foam discharge port and a floating foam sweeping plate, wherein sufficient sewage is filled into the aeration tank through a water inlet, the motor is started, an output end of the motor drives a fixed disc to rotate, the fixed disc drives the water suction pipe at the bottom end to rotate, the water suction pipe drives a plurality of groups of filtering frameworks to rotate, so that the sewage and the surfaces of the filtering membranes form a certain pressure, water is pressed into the filtering membranes to fully contact the sewage and air, the oxygen content of the sewage is improved, the water suction pipe rotates on the water pumping port through a ball arranged at the bottom end, a plurality of groups of support frames arranged at the outer side of the water suction pipe can reduce the friction between the water suction pipe and the water pumping port, the service life of the water suction pipe is prolonged, water is pumped from the water pumping port through external water pumping equipment, so that negative pressure is formed in the water suction pipe, and the sewage in the aeration tank is pumped into the filtering frameworks, when sewage passes through the filtering membrane, most of organic dirt and active bacteria can be attached to the filtering membrane, the rest water can enter the water suction pipe and reach the outside through the water suction port, the pressing plate can press the joint between the water suction port and the water suction pipe tightly to prevent the sewage from entering the water suction port and polluting the water suction port, sufficient air is filled into the aeration partial pressure pipe through the air inlet, the air enters the multiple groups of aeration pipes under the distribution of the aeration partial pressure pipe, then the air passes through the one-way air valve to be discharged into the sewage, and the organic dirt attached to the filtering membrane is decomposed under the action of oxygen in the air and the active bacteria, so that the sewage treatment efficiency can be effectively improved, and the problem of low sewage filtering efficiency is effectively solved;

2. the aeration device drives the supporting frame to rotate when the water suction pipe rotates through the arranged sewage storage box, the sewage discharge outlet, the sludge sweeping plate, the sludge attaching groove and the supporting frame, thereby driving a plurality of groups of sludge sweeping plates arranged on the outer side of the supporting frame to rotate, the sludge sweeping plates can sweep the sludge deposited at the bottom end part of the aeration tank into the sludge attaching groove, so that the sludge can not move along with the water flow, after the sludge sweeping plates move to the upper part of the sludge storage box, under the influence of gravity, the sludge can fall into the sludge storage box, so that the sludge is accumulated in the sludge storage box, and the sludge storage box is far away from the upper aeration position, thereby effectively avoiding the contact of the sludge with air flow and water flow, keeping the sludge in the sludge storage box, when the sludge is required to be cleared, the valve in the sewage discharge port is opened, so that the sludge is discharged along with partial sewage, the convenience in clearing the sludge is improved, and the problem that the sludge is inconvenient to clear is effectively solved;

3. the aeration device comprises a filtering framework, a swivel, a limit pin, a first connecting pipe, a second connecting pipe, a beam frame and a climbing ladder, when the aeration tank needs to be overhauled, firstly, sewage in the aeration tank is discharged, the beam frame is climbed through the climbing ladder, a motor is checked and maintained, then, the aeration tank enters the aeration tank, whether one-way air valves of a plurality of groups of aeration pipes are damaged or not is checked, then, the filtering membrane and the filtering framework are checked, whether the filtering membrane is damaged or not is checked, if the damage is found, the swivel is rotated to separate the first connecting pipe and the second connecting pipe, then, bolts in the limit pin are disassembled to separate the filtering framework from a water suction pipe, the damaged filtering membrane is disassembled, a new filtering membrane is replaced, the filtering membrane and the water suction pipe are fixed through the filtering framework, the first connecting pipe is communicated with the second connecting pipe through the swivel, the inside of the aeration tank can be conveniently checked and maintained, the maintenance efficiency is improved, and the problem of inconvenient maintenance with a complex structure is effectively solved.

Drawings

FIG. 1 is a schematic structural view of a multi-level high-efficiency sewage treatment aeration apparatus according to the present invention;

FIG. 2 is a schematic view of a cross-sectional structure of the multi-level high-efficiency sewage treatment aeration apparatus of the present invention;

FIG. 3 is a schematic top sectional view of the multi-layer aeration apparatus for efficiently treating sewage according to the present invention;

FIG. 4 is a schematic view of the bottom structure of the aeration tank of the present invention;

FIG. 5 is a schematic view of the dredging structure of the present invention;

FIG. 6 is a schematic view of the platen mounting structure of the present invention;

FIG. 7 is a schematic diagram of a floating foam sweeping plate structure according to the present invention;

FIG. 8 is a schematic view of a filter frame mounting arrangement according to the present invention;

fig. 9 is a schematic view of a swivel mounting structure of the present invention.

In the figure: 1. an aeration tank; 101. a beam frame; 102. a froth discharge port; 103. climbing a ladder; 2. a motor; 201. a buffer plate; 202. fixing the disc; 203. floating foam sweeping plate; 204. a connecting ring; 205. a fixing plate; 206. installing an inserting block; 207. a foam filling layer; 3. a suction pipe; 301. a support frame; 302. sweeping the sludge; 303. a sludge adhesion tank; 304. a ball bearing; 305. pressing a plate; 306. connecting blocks; 307. a first connecting pipe; 308. a seal ring; 4. an aeration pressure-dividing pipe; 401. an air inlet; 402. an aeration pipe; 403. an inner ring pipe; 404. a one-way air valve; 5. a water inlet; 6. a water pumping port; 7. a dirt storage box; 701. a sewage draining outlet; 8. filtering the framework; 801. a filtration membrane; 802. rotating the ring; 803. a limit pin; 804. a snap ring; 805. a second connecting pipe.

Detailed Description

The invention is described in further detail below with reference to specific embodiments and the attached drawings. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

Example 1

As shown in the accompanying drawings 1-9, the multi-level sewage aeration apparatus for efficient treatment of the present invention comprises an aeration tank 1, wherein a beam frame 101 is disposed at the top end of the aeration tank 1, a motor 2 is mounted at the top end of the beam frame 101, an output end of the motor 2 penetrates through the beam frame 101 and extends to the interior of the aeration tank 1 to be connected with a fixed disc 202, the bottom end of the fixed disc 202 is connected with a water suction pipe 3, the outer side of the water suction pipe 3 is provided with a plurality of sets of filter frameworks 8, the outer wall of the filter frameworks 8 is provided with a plurality of sets of filter membranes 801, the bottom end of the water suction pipe 3 is located inside the aeration tank 1 to be connected with a water pumping port 6, one side of the aeration tank 1 is provided with a water inlet 5, the bottom end of the aeration tank 1 is provided with a plurality of sets of sewage storage boxes 7, and the outer side of the aeration tank 1 is located below the water inlet 5 to be provided with a plurality of aeration pressure distribution pipes 4; air inlet 401 has all been seted up to one side of multiunit aeration bleeder 4, and air inlet 401 and external air feeder switch-on, multiunit aeration pipe 402 has been seted up to the inboard of aeration bleeder 4, and aeration pipe 402 runs through the outer wall of aeration tank 1 and extends to the internal connection of aeration tank 1 and has interior ring pipe 403, aeration pipe 402 has all seted up multiunit check valve 404 with the top of interior ring pipe 403, can provide the air of capacity in the sewage through multiunit aeration pipe 402, the pivoted pipe 3 that absorbs water drives filter frame 8 and breaks up the air, make the even distribution of air in the sewage.

The outer wall of fixed disk 202 is provided with the multiunit and floats board 203, the installation inserted block 206 has been seted up to the one side that board 203 was swept to the superficial foam, the board 203 is swept through installation inserted block 206 and fixed disk 202 block connection to the superficial foam, and the foam filling layer 207 has been seted up to the inside that board 203 was swept to the superficial foam, froth discharge port 102 has been seted up to the outer wall of aeration tank 1, and the top that board 203 was swept to the top that floats froth discharge port 102 and superficial foam highly lie in same horizontal line, sweep the board 203 through the superficial foam and can scrape off the superficial foam that sewage aeration produced, make the superficial foam enter into froth discharge port 102.

The top that draws water mouth 6 is located aeration tank 1's inside has seted up clamp plate 305, and the pipe 3 that absorbs water is connected with the 6 block of mouth that draws water through clamp plate 305, can seal the junction that draws water mouth 6 and the pipe 3 that absorbs water through clamp plate 305, guarantees that sewage can not enter into in the mouth 6 that draws water.

The outer wall that absorbs water tub 3 has seted up multiunit support frame 301, and the bottom of every group support frame 301 and aeration tank 1's inner wall block, the outer wall of support frame 301 has been seted up multiunit silt and has been swept board 302, and the outer wall that board 302 was swept to every group silt has all been seted up multiunit silt adhering groove 303, can be with most gravity distribution that absorbs water tub 3 in aeration tank 1's bottom through support frame 301, reduce the friction that absorbs water tub 3 and draw water between the mouth 6, improve the life that absorbs water tub 3.

As shown in fig. 1 and 2, a buffer plate 201 is disposed on an outer wall of the motor 2, the motor 2 is fixedly connected to the beam frame 101 through the buffer plate 201, a connection ring 204 is disposed on an outer side of an output end of the motor 2, a fixing plate 205 is disposed on an outer wall of the connection ring 204, and the output end of the motor 2 is fixedly connected to a fixing plate 202 through the connection ring 204.

As shown in fig. 2, fig. 6 and fig. 7, the outer wall of the water suction pipe 3 is provided with a plurality of sets of first connection pipes 307, the outer wall of the water suction pipe 3 is provided with connection blocks 306 at the top end and the bottom end of the first connection pipes 307, the bottom end of the water suction pipe 3 is provided with balls 304, and the water suction pipe 3 is rotatably connected with the water suction port 6 through the balls 304.

As shown in fig. 1, the outer wall of the aeration tank 1 is provided with a climbing ladder 103.

Please refer to fig. 2 and fig. 4, the top opening of the dirt storage box 7 penetrates the bottom end of the aeration tank 1 and extends to the inside of the aeration tank 1, the opening of the dirt storage box 7 is located below the sludge sweeping plate 302, a drain 701 is disposed on one side of the dirt storage box 7, the drain 701 penetrates the outer wall of the aeration tank 1 and extends to the outer side of the aeration tank 1, and a valve is mounted inside the drain 701, so that the dirt storage box 7 can hold the sludge, and the sludge is prevented from being moved around by the air current at the aeration position.

As shown in fig. 5, a second connecting pipe 805 is disposed on one side of the filter frame 8, a snap ring 804 is disposed on an outer wall of the second connecting pipe 805, a swivel 802 is sleeved on an outer side of the second connecting pipe 805, the swivel 802 is rotatably connected to the second connecting pipe 805 through the snap ring 804, and a limit pin 803 is disposed on a top end and a bottom end of the second connecting pipe 805 on one side of the filter frame 8.

As shown in fig. 9, the second connection pipe 805 is fixedly connected to the first connection pipe 307 through a swivel 802, a bolt is installed inside the limit pin 803, the limit pin 803 is connected to the connection block 306 through a bolt in a snap-fit manner, a sealing ring 308 is disposed on one side of the first connection pipe 307, the first connection pipe 307 is connected to the second connection pipe 805 through the sealing ring 308 in a snap-fit manner, and when the swivel 802 is rotated, the sealing ring 308 can gradually abut against the outer wall of the second connection pipe 805, so that the connection between the second connection pipe 805 and the first connection pipe 307 is sealed.

The working principle is as follows: the aeration tank is connected with an external power supply to ensure that the device can normally operate, then the water pumping port is connected with external negative pressure equipment, sufficient sewage is filled into the aeration tank 1 through the water inlet 5, the motor 2 is started, the output end of the motor 2 drives the fixed disc 202 to rotate, the fixed disc 202 drives the water suction pipe 3 at the bottom end to rotate, the water suction pipe 3 drives the multiple groups of filter frameworks 8 to rotate, so that the sewage and the surface of the filter membrane 801 form certain pressure, water is pressed into the filter membrane 801 to fully contact the sewage and air, the oxygen content of the sewage is improved, the water suction pipe 3 rotates on the water pumping port 6 through balls arranged at the bottom end, the multiple groups of support frames 301 arranged at the outer side of the water suction pipe 3 can reduce the friction between the water suction pipe 3 and the water pumping port 6, the service life of the water suction pipe 3 is prolonged, the water pumping is performed on the water pumping port 6 through the external water pumping equipment to ensure that negative pressure is formed in the water suction pipe 3, therefore, sewage in the aeration tank 1 is pumped into the filtering framework 8, when the sewage passes through the filtering membrane 801, most of organic dirt and active bacteria can be attached to the filtering membrane 801, the rest of water can enter the water suction pipe 3 and reach the outside through the water suction port 6, the pressing plate 305 can press the connection between the water suction port 6 and the water suction pipe 3 tightly to prevent the sewage from entering the water suction port 6 and polluting the water suction port 6, then sufficient air is filled into the aeration partial pressure pipe 4 through the air inlet 401, the air enters the plurality of groups of aeration pipes 402 under the distribution of the aeration partial pressure pipe 4, then the air passes through the one-way air valve 404 and is discharged into the sewage, the organic dirt attached to the filtering membrane 801 is decomposed under the action of oxygen and the active bacteria in the air, the treatment efficiency of the sewage can be effectively improved, the supporting frame 301 can be driven to rotate when the water suction pipe 3 rotates, thereby driving a plurality of groups of sludge sweeping plates 302 arranged on the outer side of the supporting frame 301 to rotate, the sludge sweeping plates 302 can sweep partial precipitated sludge at the bottom end of the aeration tank 1 into the sludge attaching groove 303, so that the sludge can not move along with water flow, after the sludge sweeping plates 302 move to the upper part of the sludge storage box 7, the sludge can fall into the sludge storage box 7 under the influence of gravity, so that the sludge is accumulated in the sludge storage box 7, and the sludge storage box 7 is far away from the upper aeration position, thereby effectively avoiding the contact of the sludge with air flow and water flow, keeping the sludge in the sludge storage box 7, when sludge cleaning is needed, opening a valve in a sewage outlet 701, discharging partial sewage along with the sludge, improving the convenience of cleaning the sludge, when the aeration tank needs to be maintained, firstly discharging the sewage in the aeration tank 1, climbing the beam frame 101 on the ascending ladder 103, checking and maintaining the motor 2, and then entering the aeration tank 1, whether one-way air valve 404 of inspection is damaged to multiunit aeration pipe 402, inspect filtration membrane 801 and filtration skeleton 8 afterwards, whether inspection filtration membrane 801 damages, if the discovery has the damage, it makes first connecting pipe 307 to rotate the change, the separation of second connecting pipe 805, dismantle the bolt in spacing pin 803 afterwards, make filtration skeleton 8 and the pipe separation that absorbs water, dismantle the filtration membrane 801 that damages, change new filtration membrane 801, fix filtration membrane 801 and the pipe 3 that absorbs water through filtration skeleton 8, switch on first connecting pipe 307 and second connecting pipe 805 through change 802, can be convenient to aeration tank 1 inside inspection maintenance, the efficiency of maintenance has been improved.

The foregoing is a further detailed description of the invention in connection with specific/preferred embodiments and it is not intended to limit the invention to the specific embodiments described. It will be apparent to those skilled in the art that numerous alterations and modifications can be made to the described embodiments without departing from the inventive concepts herein, and such alterations and modifications are to be considered as within the scope of the invention.

Claims

1. The utility model provides a multi-level high efficiency sewage treatment aeration equipment which characterized in that: the water-absorbing aeration device comprises an aeration tank, wherein a beam frame is arranged at the top end of the aeration tank, a motor is arranged at the top end of the beam frame, the output end of the motor penetrates through the beam frame and extends to the interior of the aeration tank to be connected with a fixed disc, the bottom end of the fixed disc is connected with a water absorbing pipe, a plurality of groups of filtering frameworks are arranged on the outer side of the water absorbing pipe, a plurality of groups of filtering membranes are arranged on the outer wall of each filtering framework, and the bottom end of the water absorbing pipe is positioned in the aeration tank and is connected with a water pumping port; a water inlet is formed in one side of the aeration tank, a plurality of groups of sewage storage boxes are formed in the bottom end of the aeration tank, and a plurality of groups of aeration pressure dividing pipes are formed in the outer side of the aeration tank below the water inlet; one side of each of the aeration pressure-dividing pipes is provided with an air inlet which is communicated with external air supply equipment, the inner side of each aeration pressure-dividing pipe is provided with a plurality of groups of aeration pipes, the aeration pipes penetrate through the outer wall of the aeration tank and extend to the interior of the aeration tank to be connected with an inner ring pipe, and the top ends of the aeration pipes and the inner ring pipe are provided with a plurality of groups of one-way air valves; the outer wall of the fixed disc is provided with a plurality of groups of floating foam sweeping plates, one side of each floating foam sweeping plate is provided with an installation insertion block, each floating foam sweeping plate is connected with the fixed disc in a clamping manner through the installation insertion block, a foam filling layer is arranged inside each floating foam sweeping plate, the outer wall of the aeration tank is provided with a floating foam outlet, and the top end of each floating foam outlet and the height of each floating foam sweeping plate are positioned on the same horizontal line; a pressing plate is arranged above the water pumping port and inside the aeration tank, and the water suction pipe is connected with the water pumping port in a clamping manner through the pressing plate; the outer wall of the water absorption pipe is provided with a plurality of groups of supporting frames, the bottom end of each group of supporting frames is clamped with the inner wall of the aeration tank, the outer wall of each supporting frame is provided with a plurality of groups of sludge sweeping plates, and the outer wall of each group of sludge sweeping plates is provided with a plurality of groups of sludge attaching grooves.

2. The multi-level aeration apparatus for high efficiency sewage treatment according to claim 1, wherein: the buffer plate has been seted up to the outer wall of motor, and the motor passes through buffer plate and roof beam structure fixed connection, and the go-between has been seted up in the output outside of motor, and the fixed plate has been seted up to the outer wall of go-between, and the output of motor passes through go-between and fixed disk fixed connection.

3. The multi-level aeration apparatus for high efficiency sewage treatment according to claim 1, wherein: the outer wall that absorbs water the pipe has seted up the first connecting pipe of multiunit, and the outer wall that absorbs water the pipe is located the top and the bottom of first connecting pipe and has all seted up the connecting block, absorbs water the bottom of pipe and has seted up the ball, absorbs water the pipe and rotate with the mouth that draws water through the ball and be connected.

4. The multi-level aeration apparatus for high efficiency sewage treatment according to claim 1, wherein: the outer wall of the aeration tank is provided with a climbing ladder.

5. The multi-level aeration apparatus for high efficiency sewage treatment according to claim 1, wherein: deposit dirty box's top opening and run through the bottom of aeration tank and extend to the inside of aeration tank, deposit the below that the opening of dirty box is located silt and sweeps the board, deposit one side of dirty box and seted up the drain, and the drain runs through the outer wall of aeration tank and extends to the outside of aeration tank, and the internally mounted of drain has the valve.

6. The multi-layer high-efficiency sewage treatment aeration device according to claim 1, which is characterized in that: the second connecting pipe has been seted up to one side of filtering the skeleton, and the snap ring has been seted up to the outer wall of second connecting pipe, and the change has been cup jointed in the outside of second connecting pipe, the change passes through the snap ring and rotates with the second connecting pipe to be connected, one side of filtering the skeleton is located the top and the bottom of second connecting pipe and has all seted up spacing pin.

7. The multi-level aeration apparatus for high efficiency sewage treatment according to claim 6, wherein: the second connecting pipe passes through swivel and first connecting pipe fixed connection, the internally mounted of spacing pin has the bolt, and spacing pin passes through the bolt and is connected with the connecting block, the sealing ring has been seted up to one side of first connecting pipe, and first connecting pipe passes through the sealing ring and is connected with second connecting pipe block.