CN216639031U - Anti-blocking aeration system - Google Patents

Abstract

The utility model discloses an anti-clogging aeration system which comprises an aeration tank, wherein an aeration pipe is introduced into the aeration tank, the bottom of the aeration tank is an inclined slope, a sludge discharge pipeline leading to the outside is arranged at the lowest point of the slope, and a sludge detector is arranged above the sludge discharge pipeline. The bottom of the aeration tank is designed into an inclined plane, so that the sulfur sludge can naturally settle at the lowest point of the inclined plane under the action of self gravity, and the solid content of other positions and heights of the aeration tank is kept low. The minimum point department on inclined plane is equipped with row mud pipeline and mud detector, can real-time supervision bottom of the pool mud thickness, when mud thickness reaches and sets for thickness, opens the valve of arranging the mud pipeline and can arrange mud, prevents that silt thickness is higher than aeration hole position siltation and blocks up aeration conduit.

Description

Anti-blocking aeration system

Technical Field

The utility model relates to the technical field of sewage treatment aeration, in particular to an anti-blocking aeration system which is used for sewage treatment in a system for removing harmful gases such as hydrogen sulfide through methane post-treatment.

Background

In the aerobic treatment process of sulfur-containing wastewater, problems are often encountered, for example, the sulfur-containing wastewater is biologically oxidized by aeration to generate elemental sulfur, sulfur sludge is accumulated and deposited at the bottom of an aeration tank, so that aeration holes are submerged, and even when the aeration is stopped, the sulfur-containing wastewater enters an aeration pipeline to block the aeration holes. When the problem is treated, the production is stopped to empty the aeration tank, circulating water and strains in the tank are emptied, an aeration pipeline laid at the bottom of the tank is disassembled, or the aeration pipeline enters the bottom of the tank manually to clean the interior of the pipeline and the periphery of aeration holes, and then the strains are inoculated, domesticated and debugged again, so that the production is influenced, and the labor cost is high. In addition, the solution for carrying out desulfurization treatment on the biogas has high conductivity, is easy to crystallize in aeration holes and pipelines and adheres to pipelines, so that aeration is hindered in the early stage, the pressure in the pipelines is suddenly increased, an aeration fan can be scrapped, the crystals agglomerate in the later stage to block the pipelines, the current of the aeration fan is overloaded and burned out, the aeration amount cannot be too much blown, sulfur bacteria do not have enough oxygen, oxidation cannot be carried out, the production effect is directly influenced, and even the aeration system is scrapped.

These problems result in the need to provide additional power to the aeration equipment, increase energy consumption for treatment, and have a significant impact on the operational life of the system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides an anti-blocking aeration system which can improve the aeration efficiency and prolong the service life.

The technical scheme of the utility model is detailed as follows:

an anti-blocking aeration system comprises an aeration tank, wherein an aeration pipe is introduced into the aeration tank, the bottom of the aeration tank is an inclined plane, a sludge discharge pipeline leading to the outside is arranged at the lowest point of the inclined plane, and a sludge detector is arranged above the sludge discharge pipeline.

Optionally or preferably, in the above anti-clogging aeration system, the aeration tank includes an aeration tank a and an aeration tank B that are independent of each other, wherein the aeration tank a is provided with a water inlet pipe, the aeration tank B is provided with a water drain pipe, the sludge discharge pipe and the sludge detector are disposed in the aeration tank B, and the aeration tank a and the aeration tank B are connected through a communication pipe.

Optionally or preferably, in the anti-clogging aeration system, the inclined plane at the bottom of the aeration tank a is lowest at one end of the water inlet pipe, the end of the communication pipe is highest, the inclined plane at the bottom of the aeration tank B is highest at one end of the communication pipe, and the inclined plane at the bottom of the drainage pipe is lowest at one end of the drainage pipe.

Alternatively or preferably, in the above anti-clogging aeration system, the aeration tank a and the aeration tank B are connected together and separated by a partition wall.

Optionally or preferably, in any of the above anti-clogging aeration systems, the inclination angle between the inclined plane and the horizontal plane is 3 degrees.

Optionally or preferably, in any of the above anti-clogging aeration systems, the aeration pipe is provided with aeration holes, the aperture of each aeration hole is 8mm, the distance between adjacent aeration holes is 5-8cm, the center of each aeration hole and the pipe diameter center line of the aeration pipe form an included angle of 30 degrees, and the distance between each aeration pipe and the bottom of the aeration tank is 10 cm.

Optionally or preferably, in any of the above anti-clogging aeration systems, the outside of the aeration pipe is respectively connected to an air source and a dosing tank, the dosing tank is filled with a cleaning agent for cleaning the aeration pipe, the dosing tank is connected to the aeration pipe through a pipeline, and the pipeline is provided with a metering pump.

Optionally or preferably, in any of the above anti-clogging aeration systems, the aeration pipe is provided with a dosing hole at a position 0.5 m above the highest liquid level in the aeration tank, and the dosing hole is connected with the dosing tank through a pipeline.

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

the aeration system of the utility model designs the bottom of the aeration tank into an inclined slope, so that the sulfur sludge can be naturally settled at the lowest point of the slope under the action of self gravity, thereby keeping the solid content of other positions and heights of the aeration tank lower. The minimum point department on inclined plane is equipped with row mud pipeline and mud detector, can real-time supervision bottom of the pool mud thickness, when mud thickness reaches and sets for thickness, opens the valve of arranging the mud pipeline and can arrange mud, prevents that silt thickness is higher than aeration hole position siltation and blocks up aeration conduit.

Through redesigning the open pore position, height, angle, aperture and the like of the aeration hole, the aeration mode is more suitable for the characteristic that sulfur-containing sewage simple substance sulfur is easy to attach and floats, the blockage degree of the aeration hole is reduced, and meanwhile, the sulfur sludge is ensured not to be gathered at the bottom of the tank and is smoothly gathered at the lowest point of the inclined plane.

The aeration tanks are designed into two and are connected through a communicating pipeline, and valves are arranged on the communicating pipeline, so that each aeration tank can be used independently and can be used together after being communicated.

In view of the fact that the sewage contains salt and crystalline components, the aeration system is additionally provided with a dosing tank which is filled with cleaning agents, and after the aeration pipe is used for a period of time, the cleaning agents can be conveyed into the aeration pipe through a metering pump to clean the aeration pipe.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the anti-clogging aeration system.

Reference numerals:

1-an aeration tank A, 2-an aeration tank B, 3-partition walls, 4-aeration pipes, 41-an aeration main pipeline, 42-aeration branch pipelines, 5-a communication pipeline, 6-an inclined plane, 7-a water inlet pipe, 8-a water outlet pipe, 9-a sludge discharge pipeline, 10-a sludge detector, 11-a dosing tank, 12-a main pipeline, 13-a metering pump, 14-a detachable hose and 15-a dosing hole control valve.

Detailed Description

The technical solutions of the present invention are explained and illustrated in detail below with reference to the accompanying drawings and preferred embodiments so that those skilled in the art can better understand the present invention and implement the present invention.

Referring to fig. 1, an anti-clogging aeration system comprises an aeration tank, wherein the aeration tank comprises an aeration tank A1 and an aeration tank B2, the two parts are separated by a partition wall 3, and each aeration tank is communicated with an aeration pipe 4. The side walls of the two aeration tanks are connected through a communicating pipeline 5, valves are arranged on the communicating pipeline 5, each part of tank body can be used independently after the valves are closed, and the tank bodies are communicated after the valves are opened and used as one tank body.

One end of an aeration tank A1 is connected with a water inlet pipe 7, one end of an aeration tank B2 is connected with a water drain pipe 8, the bottoms of the aeration tank A1 and the aeration tank B2 are both inclined planes 6 which form an angle of 3 degrees with the horizontal plane, wherein the inclined plane 6 of the aeration tank A1 is the lowest at one end of the water inlet pipe 7, and the end of a communication pipeline 5, namely the highest end close to the partition wall 3; the bottom slope 6 of the aeration tank B2 is the highest at the end of the communication pipe 5 close to the partition wall 5 and the lowest at the end of the drainage pipe 8, and is determined according to the actual civil foundation layout. The inclined plane 6 can make the sulfur mud naturally settle at the lowest corner, thereby keeping the solid content at other positions and heights of the aeration tank lower.

Aeration tank B2 bottom inclined plane minimum is equipped with the row mud pipeline 9 to outside, arranges mud pipeline 9 and sets up in the diagonal angle below of drain pipe 8 one side, separates the certain distance with drainage pipe, avoids the drainage mixed flow to influence being unfavorable for in time row mud that mud deposit leads to. Be equipped with electric valve on the row's mud pipeline 9, be equipped with sludge testing appearance 10 above row's mud pipeline 9, sludge testing appearance 10 and electric valve all are connected with central control system (not shown in the figure), and sludge testing appearance 10 conveys mud thickness data to central control system in real time, and when reaching preset thickness value, central control system can control to open the electric valve row's mud on row's mud pipeline 9, realizes automatic operation. Among the original desulfurization sewage treatment system, place the sedimentation tank at the aeration tank top, pump the sewage water pump of aeration tank to the sedimentation tank in, utilize gravity to subside naturally, artifical observation subsides the effect, then manually opens the valve and carries out sulphur mud discharge operation. The scheme of the embodiment replaces the function of a sedimentation tank in the original desulfurization system, and the automatic control means replaces manual operation by installing the sludge detector, so that the process design is simplified. When the sludge detector detects that the sludge thickness reaches 8cm, the electric valve of the sludge discharge pipeline can be automatically opened to discharge sludge, so that the sludge thickness is prevented from being higher than the position of the aeration hole to cause deposition and blockage of the aeration pipeline.

The aeration pipe 4 comprises a main aeration pipe 41 and branch aeration pipes 42 respectively connected with the main aeration pipe 41, the main aeration pipe 41 is externally connected with the air source and the dosing tank 11 respectively, and in the embodiment, the two branch aeration pipes 42 respectively extend into an aeration tank A1 and an aeration tank B2. Wherein the gas source is supplied by a Roots variable frequency fan, so that the constant pressure of the outlet of the main aeration pipeline 41 is ensured. The aeration branch pipeline 42 is provided with a dosing hole (namely a backwashing water inlet hole) at a position 0.5 m above the highest liquid level in the aeration tank, namely, each aeration tank is independently corresponding to one dosing hole, a dosing hole control valve 15 is arranged at each dosing hole, and the dosing holes are connected with a dosing tank through pipelines. The preferred scheme is that the pipeline includes adds medicine main pipe 12 and respectively with add the detachable hose 14 that medicine main pipe is connected, installs measuring pump 13 on adding medicine main pipe 12, detachable hose 14 respectively with add the medicine jogged joint. The chemical tank 11 is filled with a cleaning agent composed of a sulfide solution and a weakly acidic solution, and the aeration pipe 4 is cleaned by a metering pump at a concentration of 2% to 5%, so that crystal components formed in the main aeration pipe 41 and the branch aeration pipes 42 can be removed. The metering pump 13 can likewise be connected to a central control system, which controls the operation. The aeration pipe 4 of every half year is washd, the valve of communicating pipe 5 is closed, the sewage of aeration tank A1 is discharged to aeration tank B2 through the water pump, with removable hose 14 connection dosing tank and medicine hole, open aeration pipe that aeration tank A1 corresponds and add medicine hole control valve 15, pump into the cleaner to aeration tank A1, through the mode that the cleaner reuse water pump in aeration tank A1 is taken out to the dosing tank or is collected alone and carry out the secondary pump, can recycle, final discharge system, because aeration tank B2 still normally operates, make even during the washing, also do not influence the operation of entire system. The same is true when the aeration pipeline of the aeration tank B2 is cleaned.

The aeration branch pipe 42 is respectively led into an aeration tank A1 and an aeration tank B2, aeration holes are formed in the aeration branch pipe 42, the aperture of each aeration hole is 8mm, the distance between every two adjacent aeration holes is 5-8cm, the center of each aeration hole and the pipe diameter center line of each aeration pipe form an included angle of 30 degrees, and the distance between each aeration pipe and the bottom of each aeration tank is 10 cm. In the scheme, according to the characteristic that elemental sulfur is easy to attach and floats, a perforation aeration mode is adopted, and in order to prevent blockage, the position, height, angle, aperture and the like of an aeration opening are subjected to experimental analysis, and the perforation aeration is improved, so that the aeration mode is more suitable for the treatment of the sewage. The traditional perforation aeration aperture, the aperture interval and the pipe diameter are changed while the air pressure is ensured, the aperture is enlarged by 5mm and adjusted to 8mm while the pipe diameter is reduced, the opening density is increased, the aperture interval is adjusted to 5-8cm from 10cm, the opening angle is adjusted, the opening center and the pipe diameter central line form an included angle of 30 degrees, and the aeration pipeline is 10cm away from the bottom of the tank. The mode ensures that the sulfur sludge is not gathered at the bottom of the pool and is smoothly gathered at the lowest point of the inclined plane.

The aeration system can effectively prevent sulfur sludge from blocking the aeration pipeline, so that the aeration tank achieves the effect of a sedimentation tank in the original desulfurization system, and meanwhile, the sedimentation tank is removed, and the process design is simplified. The aeration pipe is connected with the dosing tank, can directly send into the aeration pipe with the cleaner, clears away the simple substance sulphur and the carbonate crystallization in the aeration pipe, improves aeration efficiency and aeration system service life. And meanwhile, the aeration holes are improved, so that the aeration efficiency is increased, and the sulfur sludge can be effectively prevented from silting by utilizing aeration.

The inventive concept is explained in detail herein using specific examples, which are given only to aid in understanding the core concepts of the utility model. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are included in the scope of the present invention.

Claims (5)

1. An anti-clogging aeration system comprises an aeration tank, wherein an aeration pipe is introduced into the aeration tank, and the anti-clogging aeration system is characterized in that the bottom of the aeration tank is an inclined slope, a sludge discharge pipeline leading to the outside is arranged at the lowest point of the slope, and a sludge detector is arranged above the sludge discharge pipeline;

the aeration tank comprises an aeration tank A and an aeration tank B which are mutually independent, wherein the aeration tank A is provided with a water inlet pipe, the aeration tank B is provided with a water outlet pipe, a sludge discharge pipeline and a sludge detector are arranged in the aeration tank B, and the aeration tank A and the aeration tank B are connected through a communication pipeline;

the bottom inclined plane of the aeration tank A is lowest at one end of the water inlet pipe, the end of the communicating pipeline is highest, the bottom inclined plane of the aeration tank B is highest at one end of the communicating pipeline and lowest at one end of the water drain pipe;

the aeration tank A and the aeration tank B are connected together and separated by a partition wall.

2. The anti-clogging aeration system of claim 1, wherein the angle of inclination between the inclined surface and the horizontal is 3 degrees.

3. The anti-clogging aeration system according to claim 1, wherein the aeration pipe is provided with aeration holes, the diameter of each aeration hole is 8mm, the distance between adjacent aeration holes is 5-8cm, the center of each aeration hole and the diameter center line of the pipe of the aeration pipe form an included angle of 30 degrees, and the distance between each aeration pipe and the bottom of the aeration tank is 10 cm.

4. The anti-clogging aeration system according to claim 1, wherein an air source and a dosing tank are connected to the outside of the aeration pipe, respectively, a cleaning agent for cleaning the aeration pipe is contained in the dosing tank, the dosing tank is connected to the aeration pipe through a pipeline, and a metering pump is disposed on the pipeline.

5. The anti-clogging aeration system according to claim 4, wherein the aeration pipe is provided with a dosing hole at a position 0.5 m above the highest liquid level in the aeration tank, and the dosing hole is connected with the dosing tank through a pipeline.

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