CN218665577U

CN218665577U - Hydrolysis acidification pool

Info

Publication number: CN218665577U
Application number: CN202222764970.1U
Authority: CN
Inventors: 刘铁梁; 尹旋
Original assignee: Jieshou Chuangye Water Co ltd
Current assignee: Jieshou Chuangye Water Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-21
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a hydrolytic acidification pond draws together cell body and sludge discharge pipe, the cell body has the reaction tank, the sludge discharge pipe with the reaction tank intercommunication still includes recoil pipe, dredge pump, wherein: the feed end of the sludge pump is communicated with the sludge discharge pipe, the other end of the sludge pump is connected with one end of the back flushing pipe, and the other end of the back flushing pipe is communicated with the reaction tank. The utility model has simple structure, and the arrangement of the backflushing pipeline and the mud pump backflushes the bottom of the hydrolysis acidification pool, thereby improving the ascending flow velocity of the hydrolysis acidification pool, keeping the flow velocity to reach 0.3-0.6m/h and greatly increasing the acidification effect; the effect of hydrolysis acidification and methane production similar to UASB can be realized by increasing the ascending flow velocity, and the removal rate of COD is further improved; and the bottom of the hydrolysis acidification tank is backflushed by a backflushing pipeline and a sludge discharge pump to avoid sludge accumulation and blockage of the water distributor.

Description

Hydrolysis acidification pool

Technical Field

The utility model relates to a relevant equipment technical field of sewage treatment especially relates to a hydrolytic acidification pond.

Background

Traditional hydrolytic acidification pond is equipped with multiple spot water distribution and filler structure, and it is still can to operate under the condition that does not have branch water distributor to block up, but to the stirring mixing apparatus who does not design stirring, mud scraping, mud pump, and the air supporting pond goes out water and hydrolytic acidification pond water inlet difference in height design and is slightly littleer, only relies on water-locator rivers impact to mix, and the effect is relatively poor. On-site observation shows that the filler in the hydrolysis acidification tank is difficult to form a film in an anaerobic environment, and the expected effect of installing the filler cannot be achieved. Therefore, for the hydrolysis acidification tank without a mud scraping and stirring device, the problems of avoiding the sedimentation of the sludge at the bottom of the hydrolysis acidification tank, avoiding the blockage of the water distributor and increasing the removal rate of COD are faced at present.

For example: since the operation of a hydrolytic acidification tank of a centralized sewage treatment plant of the Guangwu circulating economic industry park of the pioneer city entrepreneurial Water affair Limited company in 2018 to the present, the operation effect of the hydrolytic acidification tank does not reach the ideal state all the time, and the pressure of subsequent working sections is increased.

The authorization notice number is: CN 205258137U, entitled "a hydrolysis acidification tank" discloses a technical effect of adding a water distribution branch pipe to ensure uniform water distribution and prevent the water flow impact force from depositing mud in a water distribution pipeline.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem that exists among the background art, the utility model provides a hydrolysis-acidification pool.

The utility model provides a hydrolytic acidification pond, the same with prior art, draw together cell body and sludge discharge pipe, the cell body has the reaction tank, the sludge discharge pipe with the reaction tank intercommunication still includes recoil pipe, dredge pump, wherein:

the feed end of the sludge pump is communicated with the sludge discharge pipe, the other end of the sludge pump is connected with one end of the back flushing pipe, and the other end of the back flushing pipe is communicated with the reaction tank.

As a further optimized solution of the present invention, the recoil pipe is installed at a first side of the cell body, the drain pipe is installed at a second side of the cell body, the first side is opposite to the second side.

As the utility model discloses further optimized scheme, the bottom surface of reaction tank is for being close to from first side is towards keeping away from the inclined plane of first side downward sloping gradually.

As the utility model discloses further optimized scheme, it has into mud mouth and mud discharging port to open on the cell body, the mud pipe with the mud discharging port is connected, the recoil pipe with it connects to advance the mud mouth, it highly is higher than to advance the mud mouth the height of mud discharging port.

As a further optimized proposal of the utility model, the back flushing pipe is provided with a valve.

As a further optimized scheme of the utility model, the recoil pipe includes first recoil pipe and second recoil pipe, first recoil pipe with the second recoil pipe through first three-way pipe with the sludge pump is connected, first recoil pipe with the second recoil pipe all with the reaction tank intercommunication, first recoil pipe with the position of reaction tank intercommunication is higher than the second recoil pipe with the position of reaction tank intercommunication.

As a further optimized scheme of the utility model, be equipped with first valve on the first recoil pipe, be equipped with the second valve on the second recoil pipe.

As the utility model discloses the scheme of further optimization still includes mud pipe and row's mud valve, mud pipe with the discharge end intercommunication of mud pump, row's mud valve is established go out on the mud pipe.

The utility model has simple structure, the bottom of the hydrolysis and acidification tank is backflushed through the arrangement of the backflushing pipeline and the sludge discharge pump, the ascending flow speed of the hydrolysis and acidification tank is improved, the flow speed can be kept to reach 0.3-0.6m/h, and the acidification effect is greatly increased; the effect of hydrolysis acidification and methane production similar to UASB can be realized by increasing the ascending flow velocity, and the removal rate of COD is further improved; and the bottom of the hydrolysis acidification tank is backflushed by a backflushing pipeline and a sludge discharge pump to avoid sludge accumulation and blockage of the water distributor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the second embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

A hydrolytic acidification tank as shown in fig. 1, the same as the prior art, includes a tank body 1 and a sludge discharge pipe 12, the tank body 1 has a reaction tank 10, the sludge discharge pipe 12 is communicated with the reaction tank 10, there is a water distributor 2 in the reaction tank 10 (since the structure of the water distributor is not shown in detail in the prior art), the difference from the prior art is that it further includes a backwash pipe 3 and a sludge discharge pump 4, wherein:

the feed end of the sludge pump 4 is communicated with a sludge discharge pipe 12, the other end of the sludge pump 4 is connected with one end of a back-flushing pipe 3, and the other end of the back-flushing pipe 3 is communicated with the reaction tank 10;

in this embodiment, it is preferable that the backwash pipe 3 is installed at a first side surface 100 of the tank body 1, the drain pipe is installed at a second side surface 101 of the tank body 1, and the first side surface 100 is opposite to the second side surface 101, so as to facilitate the flow of sludge in the tank body 1.

In this embodiment, the bottom surface of the reaction tank 10 is preferably an inclined surface gradually inclined downward from the position close to the first side surface 100 to the position away from the first side surface 100, so as to further increase the flow of sludge in the tank body 1.

In the embodiment, preferably, the tank body 1 is provided with a sludge inlet 102 and a sludge outlet 103, the sludge discharge pipe 12 is connected with the sludge outlet 103, the backwash pipe 3 is connected with the sludge inlet 102, and the height of the sludge inlet 102 is higher than that of the sludge outlet 103, so as to further facilitate the washing of the sludge in the reaction tank 10.

In the embodiment, preferably, the backwash pipe 3 is provided with a valve 5, and further comprises a sludge outlet pipe 9 and a sludge discharge valve 11, the sludge outlet pipe 9 is communicated with the discharge end of the sludge discharge pump 4, and the sludge discharge valve 11 is arranged on the sludge outlet pipe 9;

specifically, the sludge outlet pipe 9 and the backflushing pipe 3 are connected with the sludge pump 4 through a second three-way pipe 13, so that sludge is conveniently discharged.

In the hydrolysis acidification process, the sludge pump 4 is used for pumping sludge at the bottom of the reaction tank 10 into the backwash pipe 3, the backwash pipe 3 is used for discharging sludge in the sludge pump 4 into the reaction tank 10 to carry out backwash on the sludge in the reaction tank 10 so as to realize the flow of the sludge at the bottom of the reaction tank 10, the acidification effect is further increased, and the COD removal rate is further improved by improving the ascending flow rate of the hydrolysis acidification tank through the backwash sludge; in addition, the cost is reduced for the subsequent biochemical section and the ozone section of water treatment, and resources are saved;

experiments show that the dredge pump 4 needs to be cleaned 3-4 times per month, and each time takes 500 yuan, which is about 2000 yuan; 15 water distributors need to be dredged every month, 6 workers are needed about every month, the cost is about 840 yuan, except 5000 yuan for fixed investment, all the expenses are integrated, and 4.876 ten thousand yuan can be saved every month. The specific details are as follows:

item	Amount of saving	Unit price of	The total cost is ten thousand yuan
				Liquid oxygen	27.39 ton	1000 yuan/ton	2.74
Ozone electric quantity	35280 kilowatt-hour	0.6867 yuan/kilowatt hour	2.42
				Expenditure of			-0.284
Totaling:			4.876

example two

As shown in fig. 2, the present embodiment is different from the above embodiments in that:

the back flushing pipe 3 comprises a first back flushing pipe 30 and a second back flushing pipe 31, the first back flushing pipe 30 and the second back flushing pipe 31 are connected with the sludge pump 4 through a first three-way pipe 6, the first back flushing pipe 30 and the second back flushing pipe 31 are both communicated with the reaction tank 10, and the position where the first back flushing pipe 30 is communicated with the reaction tank 10 is higher than the position where the second back flushing pipe 31 is communicated with the reaction tank 10.

As a further optimized solution of the present invention, the first valve 7 is disposed on the first recoil pipe 30, and the second valve 8 is disposed on the second recoil pipe 31.

In the embodiment, the back flushing effect is further increased by arranging the first back flushing pipe 30 and the second back flushing pipe 31, and the flow rate of the first back flushing pipe 30 and the flow rate of the second back flushing pipe 31 are controlled by adjusting the first valve 7 and the second valve 8, so that the flow rate of the substance in the first back flushing pipe 30 is greater than that of the substance in the second back flushing pipe 31, and the back flushing effect is further increased.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a hydrolytic acidification pond, includes cell body (1) and mud pipe (12), cell body (1) has reaction tank (10), mud pipe (12) with reaction tank (10) intercommunication, its characterized in that still includes recoil pipe (3), dredge pump (4), wherein:

the feeding end of the sludge pump (4) is communicated with the sludge discharge pipe (12), the other end of the sludge pump (4) is connected with one end of the recoil pipe (3), and the other end of the recoil pipe (3) is communicated with the reaction tank (10).

2. The hydrolytic acidification tank of claim 1, wherein the backwash pipe (3) is mounted on a first side (100) of the tank body (1) and the sludge discharge pipe is mounted on a second side (101) of the tank body (1), the first side (100) and the second side (101) being opposite.

3. The hydrolysis acidification tank according to claim 2, wherein the bottom surface of the reaction tank (10) is a slope gradually sloping downwards from near the first side (100) to far away from the first side (100).

4. The hydrolysis acidification tank as claimed in claim 1, wherein a sludge inlet (102) and a sludge discharge port (103) are formed in the tank body (1), the sludge discharge pipe (12) is connected to the sludge discharge port (103), the backwash pipe (3) is connected to the sludge inlet (102), and the sludge inlet (102) is higher than the sludge discharge port (103).

5. Hydrolysis acidification tank according to claim 1, characterized in that said back flush pipe (3) is provided with a valve (5).

6. The hydrolysis acidification tank according to claim 1, wherein the backwash pipe (3) comprises a first backwash pipe (30) and a second backwash pipe (31), the first backwash pipe (30) and the second backwash pipe (31) are connected with the sludge pump (4) through a first three-way pipe (6), the first backwash pipe (30) and the second backwash pipe (31) are both communicated with the reaction tank (10), and the position where the first backwash pipe (30) is communicated with the reaction tank (10) is higher than the position where the second backwash pipe (31) is communicated with the reaction tank (10).

7. The hydrolysis acidification tank according to claim 6, wherein a first valve (7) is arranged on the first back-flushing pipe (30), and a second valve (8) is arranged on the second back-flushing pipe (31).

8. The hydrolysis acidification tank as claimed in claim 1, further comprising a sludge outlet pipe (9) and a sludge discharge valve (11), wherein the sludge outlet pipe (9) is communicated with the discharge end of the sludge discharge pump (4), and the sludge discharge valve (11) is arranged on the sludge outlet pipe (9).