CN212451069U

CN212451069U - Cylindrical domestic sewage treatment integrated equipment

Info

Publication number: CN212451069U
Application number: CN202020852567.2U
Authority: CN
Inventors: 冯志林
Original assignee: Chengdu Chuangding Environmental Protection Equipment Co ltd
Current assignee: Chengdu Chuangding Environmental Protection Equipment Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-02-02
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a domestic sewage treatment integration equipment of cylinder belongs to domestic sewage treatment technical field. The domestic sewage treatment integration equipment of cylinder, including clean water basin, oxygen deficiency pond, anaerobism pond, good oxygen pond and sedimentation tank, anaerobism pond, oxygen deficiency pond, sedimentation tank are cyclic annular distribution around the clean water basin in order, and wherein, be equipped with the sewage import on the anaerobism pond, anaerobism pond and oxygen deficiency pond communicate each other, and oxygen deficiency pond and good oxygen pond communicate each other, and good oxygen pond and sedimentation tank communicate each other, and sedimentation tank and clean water basin communicate each other. The traditional integrated domestic sewage treatment equipment is rectangular, has poor appearance and large occupied area, the utility model adopts a cylindrical structure, each treatment tank is arranged in the circumferential direction, and a central cylinder is a clean water tank and is added with fiber bundle for filtration; not only saves space, but also has better filtering effect.

Description

Cylindrical domestic sewage treatment integrated equipment

Technical Field

The utility model relates to a domestic sewage treatment technical field, more specifically the domestic sewage treatment integration equipment that relates to a cylinder that says so.

Background

The traditional integrated domestic sewage treatment equipment is rectangular, poor in appearance and large in occupied area. In the traditional domestic sewage treatment process, a fermentation tank (generally comprising an anaerobic tank, an aerobic tank and the like) needs microorganisms for fermentation, and sludge contains a plurality of microorganisms, so that the sludge is often required to be lifted into the fermentation tank.

The traditional sewage treatment sludge lifting is realized by adopting a submersible sewage pump, and the submersible sewage pump is easy to block, so that a high-power motor is required to be adopted by the submersible sewage pump, but relatively small sewage treatment equipment is adopted, and the submersible sewage pump adopting the high-power motor has the advantages of low equipment utilization rate, high energy consumption and low efficiency; meanwhile, the equipment is easy to corrode, block and block, and is inconvenient to operate and maintain and high in cost.

In the traditional domestic sewage treatment, sewage is mostly discharged by directly carrying out precipitation treatment, so that the treated water quality does not reach the standard, the treated water quality is poor and the water quality is unstable; or a small amount of MBR membrane filtration is adopted, although water quality can reach the standard by adopting the MBR membrane filtration, the sewage treatment is cleaner, but the cost for filtering domestic sewage by adopting the MBR membrane is very high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a domestic sewage treatment integration equipment of cylinder to solve the technical problem who exists among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a domestic sewage treatment integration equipment of cylinder, includes clean water basin, oxygen deficiency pond, anaerobism pond, good oxygen pond and sedimentation tank, anaerobism pond, oxygen deficiency pond, sedimentation tank are cyclic annular distribution around the clean water basin in order, wherein, are equipped with the sewage import on the anaerobism pond, and anaerobism pond and oxygen deficiency pond communicate each other, and oxygen deficiency pond and good oxygen pond communicate each other, and good oxygen pond and sedimentation tank communicate each other, and sedimentation tank and clean water basin communicate each other.

Further, through setting up first water conservancy diversion mouth intercommunication between anaerobism pond and the oxygen deficiency pond, through setting up second water conservancy diversion mouth intercommunication between oxygen deficiency pond and the good oxygen pond, through setting up third water conservancy diversion mouth intercommunication between good oxygen pond and the sedimentation tank, through setting up fourth water conservancy diversion mouth intercommunication between sedimentation tank and the clean water basin, first water conservancy diversion mouth, second water conservancy diversion mouth, third water conservancy diversion mouth, fourth water conservancy diversion mouth are cascaded setting by height to low in proper order.

Furthermore, a partition plate is arranged in the aerobic tank to divide the aerobic tank into a primary aerobic tank communicated with the anoxic tank and a secondary aerobic tank communicated with the sedimentation tank, and a fifth flow guide port for connecting the primary aerobic tank and the secondary aerobic tank is arranged at the bottom of the partition plate; biological floating ball grids are respectively arranged at the first diversion port, the second diversion port, the third diversion port and the fifth diversion port; and a water inlet grid is arranged on the anaerobic tank at a position opposite to the sewage inlet.

Furthermore, a sludge lifting system for reversely spraying and refluxing sludge at the bottom of the sedimentation tank into the anoxic tank is arranged in the sedimentation tank, the sludge lifting system comprises an air chamber arranged at the bottom of the sedimentation tank, a one-way valve for passing the sludge at the bottom of the sedimentation tank is arranged on the side wall of the air chamber, the air chamber is communicated with the anoxic tank through a sludge lifting pipe, and the air chamber is connected with a compression fan arranged in the equipment room through an air pipe; the equipment room is arranged between the anaerobic tank and the sedimentation tank; the sludge lifting pipe is connected with a first sludge outlet pipe communicated with the primary aerobic tank and a second sludge outlet pipe communicated with the sludge tank; the section size of the air chamber is 1.5-10 times of the cross section of the sludge lifting pipe.

Further, be equipped with in the equipment room and be used for to the interior blast air aeration system that blast air aeration used of one-level good oxygen pond and second grade good oxygen pond, blast air aeration system is including setting up a plurality of first shower nozzles of giving vent to anger in the one-level good oxygen pond, a plurality of second in the second grade good oxygen pond shower nozzle of giving vent to anger, and a plurality of first shower nozzles of giving vent to anger are connected through first gas-supply pipe and compression fan, and a plurality of second is given vent to anger the shower nozzle and is connected through second gas.

Furthermore, be equipped with tow filtration system in the clean water basin, tow filtration system is equipped with hold-down mechanism including setting up the tow to the sewage filtering action below the fourth guiding opening in the clean water basin, is equipped with power unit on the clean water basin, and hold-down mechanism compresses tightly the tow under power unit's drive, realizes the separation of the clear water after tow filtration and the filter residue of crossing.

Further, hold-down mechanism includes fly leaf and bottom plate, the bottom plate is fixed inside the clean water basin, has seted up a plurality of holes that leak on the bottom plate, and the bottom in bottom plate and clean water basin has formed the water storage chamber, goes up the fly leaf and has passed through the rope and be connected with power unit, and the bottom of tow is fixed on the bottom plate, and the top of tow is fixed on last fly leaf.

Furthermore, the pressing mechanism also comprises a guide rod, the top of the guide rod is fixed at the top of the clean water tank, the bottom of the guide rod is fixed on the lower fixed plate, and the upper movable plate is arranged on the guide rod in a sliding manner; the pressing mechanism further comprises a guide block, the guide block is arranged on the guide rod in a sliding mode, and the guide block is fixedly arranged on the upper movable plate.

Further, the power mechanism is arranged at the top outside the clean water tank and is a lifting machine, and the lifting machine is connected with the upper movable plate through a rope; the upper part of the hoister is provided with an upper limit switch, the lower part of the hoister is provided with a lower limit switch, and the ropes corresponding to the upper limit switch and the lower limit switch are provided with limit stoppers.

Further, an air outlet pipe is arranged in the water storage cavity and connected with a compression fan in the equipment room through an air inlet pipe; the water storage cavity is connected with a clean water outlet pipe and a slag outlet pipe, the water inlet of the clean water outlet pipe is close to the lower fixing plate, and the inlet of the slag outlet pipe is arranged on the bottom wall of the filter tank.

Compared with the prior art, the utility model beneficial effect who has is:

1. the traditional integrated domestic sewage treatment equipment is rectangular, has poor appearance and large occupied area, the utility model adopts a novel cylinder structure, each treatment tank is arranged in the circumferential direction, and the central cylinder is a clean water tank and is added with fiber bundle for filtration; not only saves space, but also has better filtering effect.

2. The traditional integrated domestic sewage treatment equipment does not adopt fiber bundle filtration; the utility model adopts the fiber bundle filtration, and compared with the direct discharge through the sedimentation treatment, the water quality of the discharged water is stable and is easy to reach the standard; compared with MBR membrane filtration treatment, the device has the advantages of low cost, no blockage in operation, convenience in maintenance, long service life and low operation cost on the premise of standard effluent quality. The operation is not blocked, the maintenance is convenient, the service life is long, and the operation cost is low.

3. The device is provided with an air chamber at the bottom of the sedimentation tank, sludge enters the air chamber through a one-way valve under the action of water pressure, compressed air is introduced into the air chamber through an air pipe, and sludge in the air chamber is pressed into a sludge lifting pipe under the action of the compressed air and is respectively conveyed into an anoxic tank, a primary aerobic tank and a sludge tank. Under the concentrated action of the compressed air in the air chamber, the water and sludge discharge amount is large, the efficiency is high, and the effect is good. The problems that the traditional sludge lifting adopts a submersible sewage pump to block easily and the power consumption is large are solved.

Drawings

FIG. 1 is an expanded view of the cylindrical domestic sewage treatment integrated apparatus of the present invention.

FIG. 2 is a top view of the cylindrical domestic sewage treatment integrated apparatus of the present invention.

FIG. 3 is a schematic view of a sludge lifting system of the cylindrical domestic sewage treatment integrated apparatus of the present invention;

FIG. 4 is a schematic view of a fiber bundle filtration system of a cylindrical domestic sewage treatment integrated apparatus according to the present invention.

The labels in the figure are: 1-an anaerobic tank, 2-an anoxic tank, 3-a primary aerobic tank, 4-a secondary aerobic tank, 5-a partition plate, 6-a sedimentation tank, 7-a plant room, 8-a clean water tank, 9-a water inlet grille, 10-a biological floating ball grille, 11-a submersible sewage pump, 12-a pipeline, 13-a first air outlet nozzle, 14-a second air outlet nozzle, 15-a first air conveying pipe, 16-a second air conveying pipe, 17-an air chamber, 18-an air pipe, 19-a sludge lifting pipe, 20-a first sludge outlet pipe, 21-a second sludge outlet pipe, 22-a compression fan, 23-a lifting machine, 24-an upper limit switch, 25-a limit stop, 26-a rope, 27-a lower limit switch, 28-a guide rod and 29-a guide block, 30-an upper movable plate, 31-a fiber bundle, 32-a lower fixed plate, 33-an air outlet pipe, 34-a clear water outlet pipe, 35-a slag outlet pipe, 36-an air inlet pipe, 37-a first diversion port, 38-a second diversion port, 39-a third diversion port, 41-a fourth diversion port and 42-a fifth diversion port.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 and 2, a life sewage treatment integration equipment of cylinder, including clean water basin 8, oxygen deficiency pond 2, anaerobism pond 1, good oxygen pond and sedimentation tank 6, anaerobism pond 1, oxygen deficiency pond 2, good oxygen pond, sedimentation tank 6 are cyclic annular distribution around clean water basin 8 in order, wherein, are equipped with the sewage import on the anaerobism pond 1, and anaerobism pond 1 and oxygen deficiency pond 2 communicate each other, and oxygen deficiency pond 2 and good oxygen pond communicate each other, and good oxygen pond and sedimentation tank 6 communicate each other, and sedimentation tank 6 and clean water basin 8 communicate each other. It should be noted here that the closed figure formed by connecting the anaerobic tank 1, the anoxic tank 2, the aerobic tank and the sedimentation tank 6 in sequence may not only be a circle, but also be a rectangle or an ellipse, etc.

In this embodiment, communicate through setting up first water conservancy diversion mouth 37 between anaerobism pond 1 and the oxygen deficiency pond 2, communicate through setting up second water conservancy diversion mouth 38 between oxygen deficiency pond 2 and the good oxygen pond, communicate through setting up third water conservancy diversion mouth 39 between good oxygen pond and the sedimentation tank 6, communicate through setting up fourth water conservancy diversion mouth 41 between sedimentation tank 6 and the clean water basin 8, first water conservancy diversion mouth 37, second water conservancy diversion mouth 38, third water conservancy diversion mouth 39, fourth water conservancy diversion mouth 41 are cascaded setting by high to low in proper order. The stepped arrangement is to make water flow from the upper pool to the lower pool by the gravity of the water itself.

In this embodiment, a partition plate 5 is arranged in the aerobic tank to divide the aerobic tank into a primary aerobic tank 3 communicated with the anoxic tank 2 and a secondary aerobic tank 4 communicated with the sedimentation tank 6, and a fifth diversion port 42 for connecting the primary aerobic tank 3 and the secondary aerobic tank 4 is arranged at the bottom of the partition plate 5; biological floating ball grids 10 are respectively arranged at the first diversion port 37, the second diversion port 38, the third diversion port 39 and the fifth diversion port 42; and a water inlet grid 9 is arranged on the anaerobic tank 1 at a position opposite to the sewage inlet. The water inlet grille 9 filters plastic and other suspended impurities in the sewage. Suspended biological filler balls are put into the anaerobic tank 1, the anoxic tank 2, the primary aerobic tank 3 and the secondary aerobic tank 4, and in order to prevent the suspended biological filler balls from flowing into a downstream tank along with water, a biological floating ball grid 10 is arranged to block the suspended biological filler balls.

As shown in fig. 3, in this embodiment, a sludge lifting system for reversely spraying and returning sludge at the bottom of the sedimentation tank 6 to the anoxic tank 2 is arranged in the sedimentation tank 6, the sludge lifting system includes an air chamber 17 arranged at the bottom of the sedimentation tank 6, a one-way valve for passing sludge at the bottom of the sedimentation tank 6 is arranged on a side wall of the air chamber 17, the air chamber 17 is communicated with the anoxic tank 2 through a sludge lifting pipe 19, and the air chamber 17 is connected with a compression fan 22 arranged in the equipment room 7 through an air pipe 18; the equipment room 7 is arranged between the anaerobic tank 1 and the sedimentation tank 6; the sludge lifting pipe 19 is connected with a first sludge outlet pipe 20 communicated with the primary aerobic tank 3 and a second sludge outlet pipe 21 communicated with the sludge tank; the section size of the air chamber 17 is 1.5-10 times of the cross section of the sludge lifting pipe 19.

The device is characterized in that an air chamber 17 is arranged at the bottom of the sedimentation tank 6, sludge enters the air chamber 17 through a one-way valve under the action of water pressure, compressed air generated by a compression fan 22 is introduced into the air chamber 17 through an air pipe 18, and the sludge in the air chamber 17 is pressed into a sludge lifting pipe 19 under the action of the compressed air and is respectively conveyed into the anoxic tank 2, the primary aerobic tank 3 and the sludge tank. Under the concentrated action of the compressed air in the air chamber 17, the amount of the discharged water and the sludge is large, the efficiency is high, and the effect is good. Simple structure, uncomplicated structure, difficult blockage and blocking, convenient operation and maintenance and low cost.

In this embodiment, the outlet end of the sludge lift pipe 19, the first sludge outlet pipe 20 and the second sludge outlet pipe 21 are respectively provided with a valve; the amount of sludge can be adjusted by a valve.

In this embodiment, a blast aeration system for blast aeration to the primary aerobic tank 3 and the secondary aerobic tank 4 is arranged in the equipment room 7, the blast aeration system includes a plurality of first air outlet nozzles 13 arranged in the primary aerobic tank 3 and a plurality of second air outlet nozzles 14 arranged in the secondary aerobic tank 4, the plurality of first air outlet nozzles 13 are connected with a compression fan 22 through a first air pipe 15, and the plurality of second air outlet nozzles 14 are connected with the compression fan 22 through a second air pipe 16. Aeration treatment is carried out on the first-stage aerobic tank 3 and the second-stage aerobic tank 4 through a blast aeration system, and oxygen is added, so that biochemical organic matters in the sewage are decomposed into inorganic matters by aerobic bacteria.

Meanwhile, a denitrification return system is arranged in the first-stage aerobic tank 3 and comprises a submersible sewage pump 11 and a pipeline 12, and part of nitrified liquid in the first-stage aerobic tank 3 is returned to the anoxic tank 2 through the submersible sewage pump 11, so that macromolecular organic matters in the sewage are subjected to hydrolytic acidification and methanation more thoroughly.

As shown in fig. 4, in this embodiment, a fiber bundle 31 filtering system is arranged in the clean water tank 8, the fiber bundle 31 filtering system includes a fiber bundle 31 arranged below the fourth diversion port 41 and having a function of filtering sewage, a pressing mechanism is arranged in the clean water tank 8, a power mechanism is arranged on the clean water tank 8, the pressing mechanism is driven by the power mechanism to press the fiber bundle 31, and separation of clean water and filter residue after being filtered by the fiber bundle 31 is achieved.

In this embodiment, the pressing mechanism includes an upper movable plate 30 and a lower fixed plate 32, the lower fixed plate 32 is fixed inside the clean water tank 8, a plurality of water leakage holes are opened on the lower fixed plate 32, a water storage cavity is formed at the bottom of the clean water tank 8 and the lower fixed plate 32, the upper movable plate 30 is connected with the power mechanism through a rope 26, the bottom of the fiber bundle 31 is fixed on the lower fixed plate 32, and the top of the fiber bundle 31 is fixed on the upper movable plate 30. The rope 26 is preferably a steel wire rope.

In this embodiment, the upper movable plate 30 descends by its own gravity to compress the fiber bundle 31, so that the fiber bundle 31 is in a dense state, clear water in the water to be filtered is squeezed away, and the filtered residue is left in the fiber bundle 31. And the upper movable plate 30 ascends by driving the wire rope through the power mechanism. The continuous filtration of the sewage is realized by the repeated operation.

In this embodiment, the pressing mechanism further comprises a guide rod 28, the top of the guide rod 28 is fixed on the top of the clean water tank 8, the bottom of the guide rod 28 is fixed on a lower fixing plate 32, and an upper movable plate 30 is slidably arranged on the guide rod 28; the pressing mechanism further comprises a guide block 29, the guide block 29 is slidably arranged on the guide rod 28, and the guide block 29 is fixedly arranged on the upper movable plate 30. The upper movable plate 30 can be made more stable when ascending or descending by providing the guide bar 28 and the guide block 29.

In this embodiment, the power mechanism is disposed at the top outside the clean water tank 8, and the power mechanism is a hoisting machine 23, which can also be implemented by an industrial electric push rod. The hoisting machine 23 is connected with the upper movable plate 30 through a rope 26; an upper limit switch 24 is provided on the upper part of the hoist 23, a lower limit switch 27 is provided on the lower part of the hoist 23, and limit stoppers 25 are provided on ropes 26 corresponding to the upper limit switch 24 and the lower limit switch 27. The limit stop 25 is contacted with the upper limit switch 24 or the limit stop 25 is contacted with the lower limit switch 27, so that the elevator 23 can stop working.

In this embodiment, an air outlet pipe 33 is arranged in the water storage cavity, and the air outlet pipe 33 is connected with the compression fan 22 in the equipment room 7 through an air inlet pipe 36; be connected with clear water exit tube 34 and slag pipe 35 on the reservoir chamber, the water inlet of clear water exit tube 34 is close to bottom plate 32 and sets up, and the import of slag pipe 35 sets up on the diapire of filtering ponds.

When the system is in operation and filtration, the hoisting machine 23 drives the steel wire rope and the upper movable plate 30 to reach the lower limit position, namely, the limit stop 25 on the steel wire rope touches the lower limit switch 27, the fiber bundle 31 is in a compact state, the clear water outlet pipe 34 is opened to discharge water, and the slag outlet pipe 35 is closed. After the operation is repeated for a period of time, the elevator 23 drives the steel wire rope and the upper movable plate 30 to move upwards to the upper limit position, that is, the limit stop 25 on the steel wire rope touches the upper limit switch 24, the upper movable plate 30 drives the fiber bundle 31 to be in a loose state, meanwhile, the clear water outlet pipe 34 is closed, and the residue discharge pipe 35 is opened to discharge the filtered residue.

It should be noted that, when the filter residue is discharged, it takes a certain time to discharge the filter residue. The fourth diversion port 41 is filled with a large amount of high-pressure clear water for washing, so that the filter residues in the fiber bundle 31 are washed away along with water flow, enter the water storage cavity through the water leakage holes in the lower fixing plate 32, and then flow away through the residue discharge pipe 35.

In order to achieve a better filter residue discharging effect, an air outlet pipe 33 is arranged in the water storage cavity, and the air outlet pipe 33 is connected with the compression fan 22 in the equipment room 7 through an air inlet pipe 36. The compression fan 22 is started to blow the air supply pipe 33, the fiber bundle 31 is blown, generally 2-20S, vibration of the fiber bundle 31 is strengthened, the slag removing effect is improved conveniently, the slag removing time is shortened, and the equipment efficiency is improved. The system delays (5-60min) to finish slag removal and enters a filtering state.

In this embodiment, the inlet of the clean water outlet pipe 34 is disposed near the lower fixing plate 32, and the inlet of the slag outlet pipe 35 is disposed on the bottom wall of the filtering tank. The clear water after the filtration is earlier through the hole that leaks on the bottom plate 32 storage in the water storage intracavity, the benefit that the water inlet of clear water exit tube 34 was close to bottom plate 32 setting is just can flow away through clear water exit tube 34 when making the water storage of water storage intracavity to certain height, and reach the in-process of this height at the clear water, the water in the water storage intracavity can deposit once more, ensure that the water that flows away through clear water exit tube 34 is through filtering once more and deposits, and the water of clear water exit tube 34 water inlet lower part then flows away from slag pipe 35 when wasing the filter residue.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a domestic sewage treatment integration equipment of cylinder, its characterized in that, includes clean water basin (8), oxygen deficiency pond (2), anaerobism pond (1), good oxygen pond and sedimentation tank (6), anaerobism pond (1), oxygen deficiency pond (2), good oxygen pond, sedimentation tank (6) are cyclic annular distribution around clean water basin (8) in order, wherein, are equipped with the sewage import on anaerobism pond (1), and anaerobism pond (1) and oxygen deficiency pond (2) communicate each other, and oxygen deficiency pond (2) and good oxygen pond communicate each other, and good oxygen pond and sedimentation tank (6) communicate each other, and sedimentation tank (6) and clean water basin (8) communicate each other.

2. The cylindrical domestic sewage treatment integrated equipment according to claim 1, wherein the anaerobic tank (1) is communicated with the anoxic tank (2) by arranging a first diversion port (37), the anoxic tank (2) is communicated with the aerobic tank by arranging a second diversion port (38), the aerobic tank is communicated with the sedimentation tank (6) by arranging a third diversion port (39), the sedimentation tank (6) is communicated with the clean water tank (8) by arranging a fourth diversion port (41), and the first diversion port (37), the second diversion port (38), the third diversion port (39) and the fourth diversion port (41) are arranged in a stepped manner from high to low in sequence.

3. The cylindrical domestic sewage treatment integrated equipment according to claim 2, wherein a partition plate (5) is arranged in the aerobic tank to divide the aerobic tank into a primary aerobic tank (3) communicated with the anoxic tank (2) and a secondary aerobic tank (4) communicated with the sedimentation tank (6), and a fifth diversion port (42) for connecting the primary aerobic tank (3) and the secondary aerobic tank (4) is arranged at the bottom of the partition plate (5); biological floating ball grids (10) are respectively arranged at the first diversion port (37), the second diversion port (38), the third diversion port (39) and the fifth diversion port (42); and a water inlet grid (9) is arranged on the anaerobic tank (1) at a position opposite to the sewage inlet.

4. The cylindrical domestic sewage treatment integrated equipment according to claim 3, wherein a sludge lifting system for back-spraying and returning sludge at the bottom of the sedimentation tank (6) into the anoxic tank (2) is arranged in the sedimentation tank (6), the sludge lifting system comprises an air chamber (17) arranged at the bottom of the sedimentation tank (6), a one-way valve for passing sludge at the bottom of the sedimentation tank (6) is arranged on the side wall of the air chamber (17), the air chamber (17) is communicated with the anoxic tank (2) through a sludge lifting pipe (19), and the air chamber (17) is connected with a compression fan (22) arranged in the equipment room (7) through an air pipe (18); the equipment room (7) is arranged between the anaerobic tank (1) and the sedimentation tank (6); the sludge lifting pipe (19) is connected with a first sludge outlet pipe (20) communicated with the primary aerobic tank (3) and a second sludge outlet pipe (21) communicated with the sludge tank; the size of the section of the air chamber (17) is 1.5-10 times of the cross section of the sludge lifting pipe (19).

5. The cylindrical domestic sewage treatment integrated equipment according to claim 4, wherein a blast aeration system for blast aeration in the primary aerobic tank (3) and the secondary aerobic tank (4) is arranged in the equipment room (7), the blast aeration system comprises a plurality of first air outlet nozzles (13) arranged in the primary aerobic tank (3) and a plurality of second air outlet nozzles (14) arranged in the secondary aerobic tank (4), the plurality of first air outlet nozzles (13) are connected with the compression fan (22) through first air conveying pipes (15), and the plurality of second air outlet nozzles (14) are connected with the compression fan (22) through second air conveying pipes (16).

6. The cylindrical domestic sewage treatment integrated equipment according to claim 2, wherein a fiber bundle (31) filtration system is arranged in the clean water tank (8), the fiber bundle (31) filtration system comprises a fiber bundle (31) which is arranged below the fourth diversion port (41) and has a function of filtering sewage, a compressing mechanism is arranged in the clean water tank (8), a power mechanism is arranged on the clean water tank (8), and the compressing mechanism is driven by the power mechanism to compress the fiber bundle (31) so as to separate clean water filtered by the fiber bundle (31) from filter residue.

7. The cylindrical domestic sewage treatment integrated equipment according to claim 6, wherein the pressing mechanism comprises an upper movable plate (30) and a lower fixed plate (32), the lower fixed plate (32) is fixed inside the clean water tank (8), a plurality of water leakage holes are formed in the lower fixed plate (32), a water storage cavity is formed at the bottom of the lower fixed plate (32) and the bottom of the clean water tank (8), the upper movable plate (30) is connected with the power mechanism through a rope (26), the bottom of the fiber bundle (31) is fixed on the lower fixed plate (32), and the top of the fiber bundle (31) is fixed on the upper movable plate (30).

8. The cylindrical domestic sewage treatment integrated equipment according to claim 7, wherein the pressing mechanism further comprises a guide rod (28), the top of the guide rod (28) is fixed on the top of the clean water tank (8), the bottom of the guide rod (28) is fixed on the lower fixing plate (32), and the upper movable plate (30) is slidably arranged on the guide rod (28); the pressing mechanism further comprises a guide block (29), the guide block (29) is arranged on the guide rod (28) in a sliding mode, and the guide block (29) is fixedly arranged on the upper movable plate (30).

9. The cylindrical domestic sewage treatment integrated equipment according to claim 8, wherein the power mechanism is arranged at the top outside the clean water tank (8), and the power mechanism is a lifter (23), and the lifter (23) is connected with the upper movable plate (30) through a rope (26); an upper limit switch (24) is arranged at the upper part of the hoisting machine (23), a lower limit switch (27) is arranged at the lower part of the hoisting machine (23), and limit stoppers (25) are arranged on ropes (26) corresponding to the upper limit switch (24) and the lower limit switch (27).

10. The cylindrical domestic sewage treatment integrated equipment according to claim 9, wherein an air outlet pipe (33) is arranged in the water storage cavity, and the air outlet pipe (33) is connected with a compression fan (22) in the equipment room (7) through an air inlet pipe (36); be connected with clear water exit tube (34) and slag pipe (35) on the water storage chamber, the water inlet of clear water exit tube (34) is close to bottom plate (32) and sets up, and the import of slag pipe (35) sets up on the diapire of filtering ponds.