CN218709687U

CN218709687U - Sewage treatment device for municipal sewage water supply and drainage

Info

Publication number: CN218709687U
Application number: CN202223146260.9U
Authority: CN
Inventors: 易琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-26
Filing date: 2022-11-26
Publication date: 2023-03-24
Anticipated expiration: 2032-11-26

Abstract

The utility model provides a sewage treatment plant of municipal administration sewage plumbing relates to municipal administration sewage treatment technical field. The method comprises the following steps: the device comprises a blower room, an aeration tank and a water inlet, wherein a first monitoring device is arranged below the water inlet and on the inner wall of the aeration tank, the aeration tank comprises a water outlet, a second monitoring device is arranged below the water outlet and on the inner wall of the aeration tank, the first monitoring device and the second monitoring device both comprise oxygen content detectors, and the oxygen content detectors are in communication connection with the blower room; the device has the effects of monitoring the dissolved oxygen content of the aeration tank and preventing the sludge from swelling and reducing sewage treatment caused by overhigh or overlow dissolved oxygen content.

Description

Sewage treatment device for municipal sewage water supply and drainage

Technical Field

The utility model relates to a municipal administration sewage treatment technical field particularly, relates to a sewage treatment plant of municipal administration sewage plumbing.

Background

Municipal wastewater treatment water is a source of water that varies greatly in quality and is difficult to treat, and the concentrations of total dissolved solids, COD, BOD, total silicon, ammonia and other contaminants vary very frequently, and in addition, the wastewater prior to treatment contains high concentrations of organic matter, microorganisms, etc., so any product designed to treat water must tolerate this variability and contain high concentrations of organic matter and active organisms.

The existing municipal sewage treatment process is a relatively mature sewage treatment process, and the main process comprises the following steps: the method comprises the steps of physical treatment, biological treatment, advanced treatment and the like, wherein an aeration tank is a common treatment device in the biological treatment step, the aeration tank mainly carries out biochemical reaction by mixing activated sludge and sewage, and the microorganisms in the activated sludge are kept in good performance by increasing the oxygen content in mixed liquid.

The utility model discloses a china utility model that current publication number is CN214360843U discloses an aeration tank for municipal wastewater treatment, including the aeration tank main part, the aeration tank main part includes the aeration tank body, the aeration tank body includes outlet pipe, intake pipe and aeration pipe, the outlet pipe is installed in inserting to one side of aeration tank body, the top fixed mounting of aeration tank body has rabbling mechanism, the inlet tube is installed in inserting to one side of aeration tank body, the inside fixed mounting of inlet tube has automatic water-saving valve, one side fixed mounting of aeration tank body has filtering mechanism, the inside fixed mounting of aeration tank body has the intake pipe.

In the prior art, the lack of a monitoring device for oxygen content can cause the problem that activated sludge expands after being generated, and the sewage treatment effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewage treatment plant of municipal administration sewage plumbing, its dissolved oxygen content that can monitor the aeration tank prevents that dissolved oxygen content from too high or crossing low sludge bulking reduction sewage treatment effect that causes.

The embodiment of the utility model is realized like this:

the embodiment of the application provides a sewage treatment plant of municipal administration sewage plumbing, it includes blower room, aeration tank and water inlet, the inner wall that lies in the aeration tank below the water inlet is provided with first monitoring devices, the aeration tank includes the delivery port, the delivery port below lies in the aeration tank inner wall and is provided with second monitoring devices, first monitoring devices and second monitoring devices all include the oxygen content detector, oxygen content detector communication connection is in blower room.

Through above-mentioned technical scheme, feed back the oxygen content monitoring value of water inlet and delivery port to the air-blower room, adjust dissolved oxygen content in the aeration tank through control regulation air output, prevent that dissolved oxygen content is too high or low excessively to cause the mud inflation to reduce sewage treatment effect.

In some embodiments of the present invention, the aeration tank is provided with a plurality of air inlet pipes inside, the air inlet pipe is connected to a plurality of air outlet heads, and one end of the air inlet pipe is connected to the blower room.

Through the technical scheme, the plurality of air inlet pipes are annularly arranged on the inner side of the aeration tank, and the dissolved oxygen in the tank can be uniformly distributed through air supply of the air outlet heads.

In some embodiments of the present invention, a stirring fan is disposed at the bottom of the aeration tank, the lower end of the stirring fan is connected to a first power source, and the stirring fan is located below the gas outlet head.

Through the technical scheme, the bottom of the aeration tank is provided with the stirring fan, so that the activated sludge at the bottom can be stirred to fully mix the activated sludge and the sewage, and the biological reaction effect is improved. The gas outlet head is arranged above the stirring fan, so that the diameter of the stirring fan can be maximized.

The utility model discloses an in some embodiments, the below of above-mentioned stirring fan is provided with the mud groove, the mud groove includes second power supply and worm, the one end of worm is connected in the second power supply, the other end of worm is connected in the mud groove, the mud groove is kept away from the one end below of second power supply and has been seted up out the mud mouth.

Through above-mentioned technical scheme, the below of agitator fan sets up the mud groove, can regularly or the ration will sink the activated sludge discharge at the end, more does benefit to the mixture of activated sludge and sewage, reduces the piling up of dying mud.

In some embodiments of the utility model, above-mentioned aeration tank top is provided with row's mud conveyer belt, arrange mud conveyer belt one end slope and insert in the aeration tank, the other end of arranging the mud conveyer belt sets up in the aeration tank outside, it is connected with the support to arrange mud conveyer belt below.

Through above-mentioned technical scheme, the row's mud conveyer belt that aeration tank top set up inserts in the aeration tank through the mode of slope, passes through conveyer belt discharge aeration tank with the mud that floats in the sewage through the conveyer belt, promotes activated sludge's clean efficiency.

In some embodiments of the present invention, one side of the mud discharging conveyor belt is connected to a V-shaped baffle.

Through above-mentioned technical scheme, arrange the V type baffle of mud conveyer belt one side, can prevent to float mud and fall out the conveyer belt when mud is floated in the conveying.

In some embodiments of the present invention, the first power source and the second power source are hydraulic motors or pneumatic motors.

Through above-mentioned technical scheme, first power supply and second power supply adopt hydraulic motor or pneumatic motor, can avoid producing combustible gas with biological reaction and explode.

In some embodiments of the utility model, above-mentioned row's mud conveyer belt includes the conveyer belt, the conveyer belt outside is provided with the filter screen.

Through above-mentioned technical scheme, set up the filter screen in the conveyer belt outside, can increase the effect that the conveyer belt adsorbs the mud of floating.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

can monitor the dissolved oxygen content of the aeration tank and prevent the sludge from swelling and reducing the sewage treatment effect caused by overhigh or overlow dissolved oxygen content

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a flow diagram of a prior art municipal wastewater treatment process;

FIG. 2 is an isometric view of a sewage treatment plant for municipal sewage supply and drainage according to an embodiment of the present invention;

FIG. 3 is a top view of a sewage treatment apparatus for municipal sewage supply and drainage according to an embodiment of the present invention;

FIG. 4 is a partial enlarged view of a sewage treatment apparatus for municipal sewage supply and drainage according to an embodiment of the present invention;

FIG. 5 isbase:Sub>A sectional view taken along line A-A ofbase:Sub>A sewage treatment apparatus for municipal sewage supply and drainage according to an embodiment of the present invention;

FIG. 6 is a B-B sectional view of a sewage treatment apparatus for municipal sewage supply and drainage according to an embodiment of the present invention;

FIG. 7 is a D-D sectional view of a sewage treatment device for municipal sewage supply and drainage according to an embodiment of the present invention.

Icon: 1-an aeration tank; 2-a water inlet; 3, a water outlet; 4, an air inlet pipe; 5-a first monitoring device; 6-a second monitoring device; 7-stirring fan; 8-a first power source; 9-a sludge discharge groove; 10-a sludge discharge conveyor belt; 11-a second power source; 12-a worm; 13-gas outlet head; 14-V shaped baffles; 15-a mud outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 2-7, fig. 2-7 show an embodiment of the present application

The embodiment provides a sewage treatment plant of municipal administration sewage plumbing, it includes blower room, aeration tank 1 and water inlet 2, and the inner wall that lies in aeration tank 1 below water inlet 2 is provided with first monitoring devices 5, and aeration tank 1 includes

delivery port

3, and 3 below of delivery port lies in aeration tank 1 inner walls and is provided with second monitoring devices 6, and first monitoring devices 5 and second monitoring devices 6 include the oxygen content detector, and oxygen content detector communication connection is in blower room.

When using, the aquatic oxygen content detector that the selected signal is RHA-8403 is as first monitoring devices 5 and second monitoring devices 6's main part, set up first monitoring devices 5 and be used for monitoring the dissolved oxygen content in near water inlet 2 sewage on aeration tank 1 inner wall of water inlet 2 below, second monitoring devices 6 set up the below at delivery port 3, be used for monitoring the dissolved oxygen content near delivery port 3, will detect numerical value feedback to the air-blower room, through the dissolved oxygen content of first monitoring devices 5 of contrast and second monitoring devices 6, can analyze out:

1. when the dissolved oxygen content of the water inlet 2 is at a normal value and the dissolved oxygen content of the water outlet 3 is at a normal value, the whole aeration tank 1 works normally;

2. when the content of the dissolved oxygen in the water inlet 2 is at a normal value and the content of the dissolved oxygen in the water outlet 3 is lower than the normal value, the whole aeration tank 1 is anoxic, and a fan of a blower room is started to increase oxygen;

3. when the dissolved oxygen content of the water inlet 2 is at a normal value and the dissolved oxygen content of the water outlet 3 is higher than the normal value, the whole aeration tank 1 is rich in oxygen, the performance of the activated sludge is reduced, and the activated sludge needs to be replaced.

The normal value of the dissolved oxygen content is 0.2mg/L to 3mg/L.

Through above-mentioned technical scheme, feed back the air-blower room with the oxygen content monitoring value of water inlet and delivery port, adjust dissolved oxygen content in the aeration tank through control regulation air supply, prevent that dissolved oxygen content is too high or cross low and cause the mud inflation to reduce sewage treatment effect.

In a preferred embodiment, a plurality of air inlet pipes 4 are provided inside the aeration tank 1, a plurality of air outlets 13 are connected to the air inlet pipes 4, and one end of each air inlet pipe 4 is connected to a blower room through a pipeline.

When the air blower is used, the air blower room is connected with four air inlet pipes 4, the lower parts of the air inlet pipes 4 are arranged into 90-degree arc-shaped bent pipes, the inner sides of the arc-shaped bent pipes are connected with a plurality of air outlet heads 13, the air outlet heads 13 are made of honeycomb-shaped stone materials, and spherical air outlet heads of the fish tank aerator can also be adopted.

Through above-mentioned technical scheme, a plurality of intake pipes 4 are cyclic annular to be set up in the aeration tank inboard, through a plurality of gas outlet head 13 air supplies, make the dissolved oxygen that can make in the pond distribute evenly at the air supply, and gas outlet head 13 of honeycomb stone material preparation can avoid leading to the gas outlet because mud adheres to.

In a preferred embodiment, a stirring fan 7 is disposed at the bottom of the aeration tank 1, a first power source 8 is connected to the lower end of the stirring fan 7, and the stirring fan 7 is located below the gas outlet head 13.

The bottom of the aeration tank 1 is connected with a stirring fan 7 through a sealed bearing, the stirring fan 7 is in a double-blade propeller type and is driven by a first power source 8 arranged below, the first power source 8 adopts a hydraulic motor, the hydraulic system of the whole hydraulic motor is a known technology, the installation can be completed by technicians in the field without creative work, the installation is not separately described, and the height of the stirring fan 7 is not more than that of an air outlet head 13.

When the sewage treatment device is used, the hydraulic motor is started, the stirring fan 7 is rotated to stir the activated sludge precipitated at the bottom of the aeration tank 1, so that the activated sludge and the sewage are fully mixed, and organic matters in the municipal sewage are decomposed through microorganisms in the activated sludge.

Through the technical scheme, the stirring fan 7 is arranged at the bottom of the aeration tank 1, so that the activated sludge at the bottom can be stirred to fully mix the activated sludge with the sewage, and the biological reaction effect is improved. The air outlet head 13 is arranged above the stirring fan to maximize the diameter of the stirring fan.

It should be noted that activated sludge is a generic term for microbial populations and organic and inorganic substances to which they are attached, and is mainly used for treating sewage and wastewater. The activated sludge process is an aerobic process for treating organic sewage by using suspended growth microbial floc, and when the activated sludge process is used, the activated sludge has two failure modes, namely dead sludge and floating sludge, wherein the dead sludge is a state that the sludge concentration is higher and the microbial population is dead and loses activity when the sludge age is too long. The floating sludge is characterized in that the activated sludge flocs are loose due to the over-high content of dissolved oxygen, the unit mass is lightened, even the flocs are separated, and the separation of the activated sludge and the treated sewage is influenced.

As a preferred embodiment, a sludge discharge groove 9 is arranged below the stirring fan 7, the sludge discharge groove 9 comprises a second power source 11 and a worm 12, one end of the worm 12 is connected to the second power source 11, the other end of the worm 12 is connected to the sludge discharge groove 9, and a sludge outlet 15 is formed below one end of the sludge discharge groove 9 far away from the second power source 11.

When using, mud groove 9 is pour through concrete and aeration tank 1 integration and is formed, worm 12 one end is fixed through the embedded bearing at mud groove 9 end, when deriving the activated sludge activity reduction through monitoring devices, when needing to change dead mud, start stirring fan 7 with the end of sinking die during mud promotes the mud groove 9 that gets into aeration tank 1 bottom, through second power supply 11, worm 12 in the drive mud groove 9 rotates, will die mud discharge aeration tank 1, through the mud outlet 15 that mud groove 9 below was seted up, can send into next technology link with dying mud.

It should be noted that, after the activated sludge is sufficiently precipitated before the second power source 11 is started, the first power source 8 is slowly started to move the settled sludge.

Through above-mentioned technical scheme, the below of stirring fan 7 sets up mud groove 9, can regularly or the ration will sink the activated sludge discharge at the end, more does benefit to the mixture of activated sludge and sewage, reduces the piling up of dying mud.

As shown in fig. 7, as a preferred embodiment, a sludge discharge conveyor 10 is provided above the aeration tank 1, one end of the sludge discharge conveyor 10 is inserted into the aeration tank 1 in an inclined manner, the other end of the sludge discharge conveyor 10 is provided outside the aeration tank 1, and a support is connected below the sludge discharge conveyor 10.

As shown in fig. 7, in use, the sludge discharge conveyor 10 is adjusted by the bracket such that one end thereof is inserted into the sewage in the aeration tank 1 and the other end thereof is suspended higher than the inserted portion to the outside of the aeration tank 1, and the left side of the sludge discharge conveyor 10 is higher than the right side and the drive motor is disposed at the left side. When the stirring fan 7 rotates anticlockwise, the floating sludge is attached to the conveyor belt through the sewage rotating anticlockwise, and is discharged out of the aeration tank 1 through the sludge discharge conveyor belt 10, and enters the next process flow together with the dead sludge discharged from the sludge discharge groove 9.

Through above-mentioned technical scheme, the row's mud conveyer belt 10 that aeration tank 1 top set up inserts aeration tank 1 through the mode of slope in, passes through conveyer belt discharge aeration tank 1 with the mud that floats in the sewage through the conveyer belt, promotes activated sludge's clean efficiency.

As shown in fig. 7, as a preferred embodiment, a V-shaped baffle 14 is connected to one side of the sludge discharge conveyor 10.

When the device is used, the V-shaped baffle 14 slightly higher than the sludge discharge conveyor belt 10 is arranged on the right side of the sludge discharge conveyor belt 10, the V-shaped baffle 14 is arranged from the edge of the aeration tank to the position which is 20cm away from the upper end of the sludge discharge conveyor belt 10, the floating sludge is conveyed outwards through the sludge discharge conveyor belt 10 positioned in the aeration tank 1, and after the floating sludge is discharged out of the range of the aeration tank 1, the floating sludge can be prevented from spilling outside the aeration tank 1 through the V-shaped baffle 14.

Through the technical scheme, the V-shaped baffle 14 on one side of the mud discharging conveyor belt 10 can prevent floating mud from falling out of the conveyor belt when conveying floating mud.

In a preferred embodiment, the first power source 8 and the second power source 11 are hydraulic motors or pneumatic motors.

When the electric spark plug is used, because the activated sludge reacts with sewage to generate combustible gas, if the electric spark plug is driven by an electric motor, the electric spark has explosion risk, and the hydraulic motor and the starting motor can effectively avoid the risk.

Through the technical scheme, the first power source 8 and the second power source 11 adopt hydraulic motors or air pressure motors, and the explosion of combustible gas generated by biological reaction can be avoided.

As a preferred embodiment, the mud discharging conveyor 10 comprises a conveyor belt, and a filter screen is arranged outside the conveyor belt.

When in use, a layer of filter screen is additionally arranged on the outer side of the mud discharging conveyor belt 10, so that the friction between the conveyor belt and floating mud can be increased.

To sum up, the embodiment of the utility model provides a sewage treatment plant of municipal sewage plumbing, it compares with prior art has following at least and is a bit:

1. can monitor the dissolved oxygen content of the aeration tank and prevent the sludge from expanding and reducing the sewage treatment effect caused by overhigh or overlow dissolved oxygen content.

2. The gas outlet head is not easy to block;

3. the stirring fan arranged at the bottom has better mixing effect;

4. can automatically discharge dead mud at the bottom of the aeration tank;

5. the floating mud in the aeration tank can be automatically discharged;

6. the safety is high.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a sewage treatment plant of municipal administration sewage plumbing, includes air blower room, aeration tank (1) and water inlet (2), its characterized in that, the inner wall that is located aeration tank (1) below water inlet (2) is provided with first monitoring devices (5), aeration tank (1) includes delivery port (3), delivery port (3) below is located aeration tank (1) inner wall and is provided with second monitoring devices (6), first monitoring devices (5) and second monitoring devices (6) all include the oxygen content detector, oxygen content detector communication connection is in air blower room.

2. The sewage treatment device for municipal sewage supply and drainage according to claim 1, wherein a plurality of air inlet pipes (4) are arranged inside the aeration tank (1), a plurality of air outlet heads (13) are connected to the air inlet pipes (4), and one end of each air inlet pipe (4) is connected to a blower room through a pipeline.

3. The sewage treatment device for municipal sewage supply and drainage according to claim 1, wherein a stirring fan (7) is arranged at the bottom of the aeration tank (1), a first power source (8) is connected to the lower end of the stirring fan (7), and the stirring fan (7) is positioned below the air outlet head (13).

4. The municipal sewage water supply and drainage sewage treatment device according to claim 3, wherein a sludge discharge groove (9) is formed below the stirring fan (7), the sludge discharge groove (9) comprises a second power source (11) and a worm (12), one end of the worm (12) is connected to the second power source (11), the other end of the worm (12) is connected to the sludge discharge groove (9), and a sludge outlet (15) is formed below one end, far away from the second power source (11), of the sludge discharge groove (9).

5. The sewage treatment device for municipal sewage supply and drainage according to claim 1, wherein a sludge discharge conveyor belt (10) is arranged above the aeration tank (1), one end of the sludge discharge conveyor belt (10) is obliquely inserted into the aeration tank (1), the other end of the sludge discharge conveyor belt (10) is arranged outside the aeration tank (1), and a support is connected below the sludge discharge conveyor belt (10).

6. The sewage treatment plant for municipal sewage supply and drainage according to claim 5, wherein a V-shaped baffle (14) is attached to one side of the sludge discharge conveyor (10).

7. The municipal sewage treatment apparatus according to claim 4, wherein the first and second power sources (8, 11) are hydraulic or pneumatic motors.

8. The sewage treatment plant for municipal sewage water supply and drainage according to claim 5, wherein the sludge discharge conveyor (10) comprises a conveyor belt, and a filter screen is arranged outside the conveyor belt.