CN218403852U

CN218403852U - Novel mud is arranged in mud backward flow device

Info

Publication number: CN218403852U
Application number: CN202222879903.4U
Authority: CN
Inventors: 栗勇田; 丰元; 薛进; 叶慧敏; 王雪娇
Original assignee: Runtian Environmental Engineering Co ltd
Current assignee: Runtian Environmental Engineering Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-01-31
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a novel sludge backflow and sludge discharge device, which relates to the technical field of sewage treatment equipment and comprises a second sludge backflow pipe, wherein one end of the second sludge backflow pipe is provided with a connecting tee, one port of the connecting tee is connected with a first sludge backflow pipe, and a sludge discharge assembly for discharging sludge is arranged on the lower port of the connecting tee; the lower end opening of the first sludge return pipe is fixedly connected with a bell mouth, and a ventilation assembly for ventilating the interior of the first sludge return pipe is arranged on the bell mouth; the sludge backflow and discharge device adopts air stripping backflow, the aeration fan of the integrated equipment supplies air, a motor does not need to be additionally arranged, a sludge backflow pump is omitted, and the process operation cost is reduced.

Description

Novel mud is arranged in mud backward flow device

Technical Field

The utility model relates to a sewage treatment device technical field specifically is a novel mud is arranged in mud backward flow device.

Background

With the continuous attention of the country to the environmental problem, the requirement for sewage treatment is higher and higher in recent years, indexes such as nitrogen and phosphorus of sewage are brought into an examination range, an AAO (anaerobic-anoxic-oxic) process is the most widely applied denitrification and dephosphorization process in China at present, and integrated sewage treatment equipment is widely applied to the rural domestic sewage field and other small-sized sewage treatment fields.

However, due to the factors of width limitation, height limitation and the like of roads in China, the design of the sewage treatment integrated equipment has some limitations, and generally the height of the equipment is required to be not more than 3.2m, and the width of the equipment is also required to be not more than 3.0m. This results in the design of the integrated equipment not being fully designed to the relevant process and specifications.

The sewage treatment integrated equipment also adopts the AAO process mostly, the effect is influenced by the effect of the sedimentation tank besides the design and debugging of the biochemical section, and the prior sedimentation tank adopts an inclined tube sedimentation tank mostly, so that the sewage treatment integrated equipment has the advantages of high surface load, good effect, small occupied area and the like. But set up the sludge pump at the sedimentation tank and arrange mud as mud and backward flow on the one hand input cost and running cost are on the high side, and the maintenance of on the other hand sludge pump is inconvenient, and needs open the access hole on the pipe chute, influences the effect of sedimentation tank and the installation and the maintenance of pipe chute.

In view of the above problems, we provide a novel sludge backflow and discharge device to solve the above mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel mud is arranged in mud backward flow device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel sludge backflow and sludge discharge device comprises a second sludge backflow pipe, wherein one end of the second sludge backflow pipe is provided with a connecting tee, one end port of the connecting tee is connected with a first sludge backflow pipe, and a sludge discharge assembly for discharging sludge is arranged on the lower end port of the connecting tee;

the lower end opening of the first sludge return pipe is fixedly connected with a bell mouth, and a ventilation assembly for ventilating the interior of the first sludge return pipe is arranged on the bell mouth;

the one end that the second sludge return pipe is kept away from and connects the tee bend is equipped with the discharge port, the position that the second sludge return pipe is close to the discharge port still is equipped with manual valve, still be equipped with on the second sludge return pipe and be used for carrying out the maintenance subassembly of mediation maintenance to the second sludge return pipe.

As a further aspect of the present invention: the mud discharging assembly comprises a mud discharging pipe, one end of the mud discharging pipe is connected with a lower port of the connecting tee joint, a mud discharging valve is mounted on the mud discharging pipe, and a mud discharging port is formed in one end, far away from the connecting tee joint, of the mud discharging pipe.

As a further aspect of the present invention: the ventilation assembly comprises an air pipe, one end of the air pipe is communicated with the bottom of the bell mouth, and an air supply valve is further mounted at the upper end of the air pipe.

As a further aspect of the present invention: the maintenance subassembly includes the access hole, the access hole is installed at second sludge return pipe intermediate position, access hole upper end position is equipped with the closing cap.

As a further aspect of the present invention: the sealing cover is in threaded connection with the access hole.

As the utility model discloses further scheme again: the lower end of the vertical pipe of the first sludge return pipe is connected with a bell mouth by adopting two 45-degree elbows.

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

1. the sludge reflux and discharge device is energy-saving, adopts air stripping reflux, uses an aeration fan of integrated equipment for air supply, does not need to additionally increase a motor, cancels a sludge reflux pump, and reduces the process operation cost.

2. Cost control, this mud backward flow row mud device replaces former mud backwash pump, and only needs a set of air stripping device, and equipment input cost obtains reducing.

3. Convenient high-efficient, this mud backflow row mud device does not destroy sedimentation tank pipe chute integrality, guarantees the sedimentation tank effect of deposiing, and the change and the maintenance of pipe chute are also more convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the structure schematic diagram of the mud discharging component in the utility model.

Fig. 3 is a schematic view of a partial structure of the present invention.

Wherein: 1. a first sludge return pipe; 2. a bell mouth; 3. an air tube; 4. an air supply valve; 5. connecting a tee joint; 6. a second sludge return pipe; 7. a mud valve; 8. a sludge discharge pipe; 9. sealing the cover; 10. an access hole; 11. a manual valve; 12. an outlet port; 13. a sludge discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in an embodiment of the present invention, a novel sludge backflow and discharging device includes a second sludge backflow pipe 6, a connecting tee 5 is disposed at one end of the second sludge backflow pipe 6, a first sludge backflow pipe 1 is connected to one port of the connecting tee 5, and a sludge discharging assembly for discharging sludge is disposed at a lower port of the connecting tee 5; the sludge discharge assembly comprises a sludge discharge pipe 8, one end of the sludge discharge pipe 8 is connected with the lower port of the connecting tee joint 5, a sludge discharge valve 7 is mounted on the sludge discharge pipe 8, and a sludge discharge port 13 is formed in one end, far away from the connecting tee joint 5, of the sludge discharge pipe 8; the lower end of the vertical pipe of the first sludge return pipe 1 is connected with the bell mouth 2 by two 45-degree elbows.

When the sludge discharging device is used, sludge is discharged to the anaerobic tank along the second sludge return pipe 6, a branch pipe is arranged on the second sludge return pipe 6 and is used as a sludge discharging pipe 8, a sludge discharging valve 7 is arranged on the sludge discharging pipe 8, the sludge discharging valve 7 adopts an electric valve and is opened and closed at regular time, and the sludge in the pipe is discharged to the sludge tank along the sludge discharging pipe 8 preferentially under the action of gravity and outlet pressure when the sludge discharging valve 7 is opened because the sludge discharging pipe 8 is lower than the first sludge return pipe by about 100mm (the height can be adjusted according to actual use requirements); when the sludge discharge valve 7 is closed, the sludge flows back to the anaerobic tank along the second sludge return pipe 6. Mud backward flow mud discharging device is used for the sedimentation tank more, generally sets up the intermediate position at the sedimentation tank mud bucket because set up the pipe chute more in the sedimentation tank, can destroy pipe chute integrality when the mud pipeline passes through the pipe chute, influences the sedimentation tank and deposits the effect, consequently, 1 bottom of first mud back flow sets up two 45 elbows in this scheme, guarantees that the mud pipeline stretches out from the pipe chute clearance, does not influence the pipe chute integrality.

The lower port of the first sludge return pipe 1 is fixedly connected with a bell mouth 2, and a ventilation component for ventilating the interior of the first sludge return pipe 1 is arranged on the bell mouth 2; the ventilation assembly comprises an air pipe 3, one end of the air pipe 3 is communicated with the bottom of the bell mouth 2, and an air supply valve 4 is further mounted at the upper end of the air pipe 3; during operation, compressed air enters the first sludge return pipe 1 from the lower part of the bell mouth 2 through the air supply valve 4, and the air supply valve 4 is arranged for adjusting the size of air inflow.

A discharge port 12 is formed in one end, far away from the connecting tee 5, of the second sludge return pipe 6, a manual valve 11 is further arranged at a position, close to the discharge port 12, of the second sludge return pipe 6, and a maintenance assembly for dredging and maintaining the second sludge return pipe 6 is further arranged on the second sludge return pipe 6; the maintenance assembly comprises a maintenance opening 10, the maintenance opening 10 is arranged in the middle of the second sludge return pipe 6, and a sealing cover 9 is arranged at the upper end of the maintenance opening 10; the cover 9 is in threaded connection with the access opening 10.

The second sludge return pipe 6 is provided with a manual valve 11 and an access hole 10, if the second sludge return pipe 6 is blocked, the manual valve 11 is opened, water is injected into the manual valve 11 to dredge the second sludge return pipe 6, and if the sludge discharge pipe 8 is blocked, the manual valve 11 is closed, and water is injected into the access hole 10 to dredge the sludge discharge pipe 8.

The utility model discloses a theory of operation is: when the anaerobic tank works, compressed air enters the first sludge return pipe 1 from the lower part of the bell mouth 2 through the air supply valve 4, the density of mixed liquid is lower than that of liquid outside the pipe due to the mixing of air and sludge, so that density difference is formed, at the moment, the low-density mixed liquid in the pipe rises to form low pressure, so that the liquid outside the pipe is pressed into the pipe to form backflow, and the mixed liquid reaches the top of the first sludge return pipe 1 and then flows to the anaerobic tank along the second sludge return pipe 6. Set up a branch pipe as mud pipe 8 in second mud back flow 6 below, set up a mud valve 7 on the mud pipe 8, mud valve 7 is closed during daily operation, and equipment normally carries out the mud backward flow, and mud valve 7 is opened when the sedimentation tank need arrange mud, because the effect of gravity, mixes liquid and gets into the sludge impoundment along mud pipe 8, and the mud time of arranging is confirmed by motorised valve opening time.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Although the present description is described in terms of embodiments, not every embodiment includes only one technical solution, and such description of the embodiments is merely for clarity, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The utility model provides a novel mud is arranged in mud backward flow device, includes second mud back flow (6), its characterized in that: one end of the second sludge return pipe (6) is provided with a connecting tee joint (5), one port of the connecting tee joint (5) is connected with the first sludge return pipe (1), and a sludge discharge assembly for discharging sludge is arranged at the lower port of the connecting tee joint (5);

the lower port of the first sludge return pipe (1) is fixedly connected with a bell mouth (2), and a ventilation assembly for ventilating the interior of the first sludge return pipe (1) is arranged on the bell mouth (2);

one end of the second sludge return pipe (6) far away from the connecting tee joint (5) is provided with a discharge port (12), the position of the second sludge return pipe (6) close to the discharge port (12) is further provided with a manual valve (11), and the second sludge return pipe (6) is further provided with an overhauling assembly for dredging and overhauling the second sludge return pipe (6).

2. The novel sludge backflow and discharging device as claimed in claim 1, wherein the sludge discharging assembly comprises a sludge discharging pipe (8), one end of the sludge discharging pipe (8) is connected with the lower port of the connecting tee joint (5), a sludge discharging valve (7) is mounted on the sludge discharging pipe (8), and a sludge discharging port (13) is formed in one end, away from the connecting tee joint (5), of the sludge discharging pipe (8).

3. The novel sludge backflow and discharging device is characterized in that the air vent assembly comprises an air pipe (3), one end of the air pipe (3) is communicated with the bottom of the bell mouth (2), and an air supply valve (4) is further mounted at the upper end of the air pipe (3).

4. The novel sludge backflow and discharging device as claimed in claim 1, wherein the maintenance assembly comprises a maintenance opening (10), the maintenance opening (10) is installed in the middle of the second sludge backflow pipe (6), and a sealing cover (9) is arranged at the upper end of the maintenance opening (10).

5. The novel sludge backflow and discharging device as claimed in claim 4, wherein the sealing cover (9) is in threaded connection with the access opening (10).

6. The novel sludge return and discharge device as claimed in claim 1, wherein the lower end of the vertical pipe of the first sludge return pipe (1) is connected with the bell mouth (2) by two 45-degree elbows.