CN215365090U - High-efficient whirl activated sludge biochemical pond - Google Patents
High-efficient whirl activated sludge biochemical pond Download PDFInfo
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- CN215365090U CN215365090U CN202121816069.3U CN202121816069U CN215365090U CN 215365090 U CN215365090 U CN 215365090U CN 202121816069 U CN202121816069 U CN 202121816069U CN 215365090 U CN215365090 U CN 215365090U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The application discloses biochemical pond of high-efficient whirl activated sludge. The high-efficiency rotational flow active sludge biochemical tank comprises a tank body, a central rotating body, a cover body, a despin baffle, a high-pressure air pump, an air conduit, a high-pressure water pump, a sewage conduit and an overflow pipe; a sewage discharge cavity is formed at the bottom of the tank body; the central rotating body is hollow to form an air cavity, and the central rotating body is provided with an air injection hole; the air injection hole is communicated with the air cavity; the air conduit is connected with the high-pressure air pump, the other end of the air conduit penetrates through the tank wall of the tank body and then is arranged on the central rotating body, and the air conduit is communicated with the air cavity; one end of the sewage conduit is connected with the high-pressure water pump, and the other end of the sewage conduit penetrates through the wall of the tank body and is positioned in the tank body; the cover body is arranged in the tank body; the cover body comprises a contraction section and an overflow section which are connected with each other; the contraction section is close to the central rotating body; the overflow pipe is connected with the overflow port, and the other end of the overflow pipe penetrates through the wall of the tank body; the despin baffle is arranged in the tank body. The cyclone effect is not influenced by the depth of the biochemical pool, and higher aeration effect can be realized.
Description
Technical Field
The application relates to the technical field of sewage treatment devices, in particular to a high-efficiency rotational flow active sludge biochemical tank.
Background
The sewage treatment method has various sewage treatment modes, and the biochemical treatment mode is widely applied in the existing sewage treatment modes, namely the sewage is subjected to sedimentation treatment after being aerated in a biochemical pool filled with activated sludge.
At present, the control of aeration in a biochemical pond is an important link in biochemical treatment. Usually, air is injected into the biochemical tank in an injection manner to form jet flow and drive the sewage in the biochemical tank to form rotational flow, so that the sewage and the air are fully mixed to complete the aeration process. However, the swirl induced by the air jet is limited by the depth of the biochemical tank, when the biochemical tank is shallow, the swirl induced by the air jet has a good effect, and along with the increase of the depth of the biochemical tank, the swirl induced by the air jet can be reduced, so that the aeration effect can be directly reduced, and the effect of activated sludge treatment can be reduced.
Therefore, the design of a high-efficiency rotational flow active sludge biochemical tank has the rotational flow effect which is not influenced by the depth of the biochemical tank, can realize higher aeration effect, and is a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a high-efficiency rotational flow active sludge biochemical tank for solving the technical problems.
The utility model has the innovation points that the rotational flow is realized by adopting a mechanical rotational flow mode, the rotational flow effect is not influenced by the depth of the biochemical pool, the aeration process is completed by forming negative pressure through the rotational flow, and the aeration effect is effectively improved.
In order to realize the purpose of the utility model, the technical proposal of the utility model is as follows:
a high-efficiency rotational flow active sludge biochemical tank comprises a tank body, a central rotating body, a cover body, a despin baffle, a high-pressure air pump, an air conduit, a high-pressure water pump, a sewage conduit and an overflow pipe; the pool body is cylindrical, and the bottom of the pool body is contracted into a cone to form a sewage discharge cavity; the central rotating body is positioned in the tank body, and the axis of the central rotating body is coaxial with the axis of the tank body; the central rotating body is hollow to form an air cavity, and the central rotating body is provided with an air injection hole; the air injection hole is communicated with the air cavity; one end of the air conduit is connected with the high-pressure air pump, the other end of the air conduit penetrates through the wall of the tank body and then is arranged on the central rotating body, and the air conduit is communicated with the air cavity; one end of the sewage conduit is connected with the high-pressure water pump, and the other end of the sewage conduit penetrates through the wall of the tank body and is positioned in the tank body;
the cover body is arranged in the tank body and is positioned at one end of the central rotating body far away from the sewage discharge cavity; the cover body comprises a contraction section and an overflow section which are connected with each other; the contraction section and the overflow section are arranged around the central rotating body; an overflow port is formed on the overflow section; one end of the overflow pipe is connected with the overflow port, and the other end of the overflow pipe penetrates through the wall of the tank body; a space is reserved between the lower end of the central rotating body and the sewage discharge cavity, a despin baffle is installed in the space, and one end of the despin baffle is fixed on the wall of the pool body.
In the implementation process, the sludge in the biochemical tank realizes rotational flow through the mechanical rotation of the central rotating body, and the rotational flow effect cannot be influenced by the depth of the biochemical tank by adopting the mechanical rotational flow mode. And because the rotation of the central rotator can make the middle part of the axis of the biochemical pool form a negative pressure area, and air is sprayed out from the air spraying holes of the central rotator, on one hand, certain workload is lightened for a high-pressure air pump, and simultaneously, energy is saved, on the other hand, the air is led out from the center of the rotational flow and can be fully dispersed, so that the air and the sewage can be fully and uniformly mixed, and the aeration effect is improved. In addition, the newly-fed sewage is sprayed out from the wall of the biochemical tank, on one hand, the jet flow sprayed out by the sewage can disturb the rotational flow to a certain extent and already forms layering on the side wall of the biochemical tank so as to be convenient for secondary mixing, and on the other hand, the newly-fed sewage can be ensured to be fully aerated. A cover body with a contraction section is arranged above the central rotating body, so that the sludge is thrown to the side wall of the biochemical pool under the action of the rotational flow, and the purified water rises along with the contraction section and is further guided out by an overflow pipe at the contraction section.
Preferably, the axes of the air injection holes are tangential to the side wall of the central rotating body, and the injection directions of the air injection holes are opposite to the rotation direction of the central rotating body.
In the implementation process, the axis of the air injection hole is tangent to the side wall of the central rotating body, the injection direction of the air injection hole is opposite to the rotation direction of the central rotating body, the jet flow of the injected gas can be well diffused along the rotational flow, the air pressure of the high-pressure air pump can be reduced to a certain extent by injecting the air, the workload of the high-pressure air pump is reduced, and the energy consumption is reduced.
Preferably, the drainage direction of the sewage conduit is opposite to the rotation direction of the central rotating body.
In the process of realizing, the drainage direction of the sewage conduit is opposite to the rotation direction of the central rotating body, so that a sludge layer formed by rotational flow can be effectively scattered, the sludge is subjected to aeration mixing together, and the sludge is mixed by combining with newly-fed sewage to achieve a better aeration effect.
Preferably, a return gap is formed between the constriction and the wall of the tank.
In the process of the realization, the contraction section keeps a gap with the side wall of the biochemical pool, and water after the overflow section flows back again to perform a new round of aeration, so that secondary aeration purification is completed, and the purification effect is improved.
Preferably, the axial direction of the overflow pipe is tangential to the side wall of the overflow section and is opposite to the rotation direction of the central rotating body.
In the process of the realization, the overflow pipe is arranged along the tangential direction of the side wall of the overflow section, and the axial direction is opposite to the rotating direction of the central rotating body, so that the overflow pipe can directly meet the purified water flowing in a rotating way, and a better drainage effect is achieved.
Preferably, the racemization baffle plates are spirally arranged at intervals along the axial direction of the tank body.
The in-process of above-mentioned realization, the rotation eliminating baffle is the distribution of spiral form along the axis of biochemical pond, can eliminate the effect of whirl gradually on the one hand, is unlikely to suddenly to the whirl resistance block arouse to activated sludge's the condition of breaking away, and then influences the whirl aeration effect of top, and on the other hand, the gathering mud that the whirl formed also can slowly shrink along the helix in the blowdown chamber of biochemical pond bottom, reaches better mud collection effect.
The utility model has the beneficial effects that: the sludge in the biochemical tank realizes rotational flow through the mechanical rotation of the central rotating body, and the rotational flow effect cannot be influenced by the depth of the biochemical tank by adopting the mechanical rotational flow mode. And because the rotation of the central rotator can make the middle part of the axis of the biochemical pool form a negative pressure area, and air is sprayed out from the air spraying holes of the central rotator, on one hand, certain workload is lightened for a high-pressure air pump, and simultaneously, energy is saved, on the other hand, the air is led out from the center of the rotational flow and can be fully dispersed, so that the air and the sewage can be fully and uniformly mixed, and the aeration effect is improved. In addition, the newly-fed sewage is sprayed out from the wall of the biochemical tank, on one hand, the jet flow sprayed out by the sewage can disturb the rotational flow to a certain extent and already forms layering on the side wall of the biochemical tank so as to be convenient for secondary mixing, and on the other hand, the newly-fed sewage can be ensured to be fully aerated. A cover body with a contraction section is arranged above the central rotating body, so that the sludge is thrown to the side wall of the biochemical pool under the action of the rotational flow, and the purified water rises along with the contraction section and is further guided out by an overflow pipe at the contraction section.
Drawings
FIG. 1 is a schematic structural diagram of a high-efficiency rotational flow activated sludge biochemical tank in an embodiment of the utility model.
Icon: 01. a tank body; 11. a blowdown chamber; 02. a central rotating body; 21. an air cavity; 22. a gas injection hole; 03. a cover body; 31. a contraction section; 32. an overflow section; 04. a despin baffle plate; 51. a high pressure air pump; 52. an air conduit; 61. a sewage conduit; 62. a high pressure water pump; 07. an overflow pipe; 71. an overflow port.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1:
referring to fig. 1, fig. 1 is a schematic structural diagram of an efficient cyclone activated sludge biochemical tank in this embodiment. The embodiment provides a high-efficiency rotational flow active sludge biochemical tank.
The high-efficiency rotational flow active sludge biochemical tank comprises a tank body 01, a central rotating body 02, a cover body 03, a racemization baffle 04, a high-pressure air pump 51, an air conduit 52, a high-pressure water pump 62, a sewage conduit 61 and an overflow pipe 07. The tank body 01 is cylindrical, and the bottom of the tank body 01 is contracted into a cone to form a sewage discharge cavity 11. The central rotating body 02 is positioned in the tank body 01, and the axis of the central rotating body 02 is coaxial with the axis of the tank body 01. The central rotating body 02 is hollow to form an air cavity 21, and the central rotating body 02 is provided with air injection holes 22. The gas ejection holes 22 communicate with the gas chamber 21. One end of the air conduit 52 is connected with the high pressure air pump 51, the other end passes through the wall of the tank body 01 and is arranged on the central rotating body 02, and the air conduit 52 is communicated with the air cavity 21. Air can enter the air cavity 21 through the high-pressure air pump 51 and is sprayed into the tank body 01 through the air spraying holes 22. Since the central rotating body 02 is rotated all the time during the air injection, in order that the injected air does not affect the flow direction of the liquid around the central rotating body 02, in the present embodiment, the axes of the air injection holes 22 are tangential to the side wall of the central rotating body 02, and the injection direction of the air injection holes 22 is opposite to the rotation direction of the central rotating body 02. The jet flow of the ejected gas can be well diffused along the rotational flow, and the air pressure of the high-pressure air pump 51 can be reduced to a certain extent by the air ejection, so that the workload of the high-pressure air pump 51 is reduced, and the energy consumption is reduced.
One end of the sewage conduit 61 is connected with the high pressure water pump 62, and the other end passes through the wall of the tank body 01 and is positioned in the tank body 01. Thus, the sludge can enter the tank body 01 from the sewage conduit 61, and considering that the sludge needs to be mixed with the original sludge and the air therein again after entering the tank body 01, in this embodiment, the drainage direction of the sewage conduit 61 is opposite to the rotation direction of the central rotating body 02. Therefore, the sludge layer formed by the rotational flow can be effectively scattered, so that the sludge is aerated and mixed together and is mixed with newly-fed sewage, and a better aeration effect is achieved.
The cover body 03 is arranged in the tank body 01 and is positioned at one end of the central rotating body 02 far away from the sewage discharge cavity 11. The cover 03 comprises a contraction section 31 and an overflow section 32 which are connected with each other. The constriction 31 and the overflow 32 are arranged around the central rotor 02. The overflow section 32 is provided with an overflow port 71. One end of the overflow pipe 07 is connected with the overflow port 71, and the other end passes through the wall of the tank body 01.
The overflow section 32 is the highest point of swirl flow guidance where the water body has the least impurities and the highest degree of purification and therefore the best extraction of water is achieved. The arrangement of the overflow pipe 07 has an influence on the quantity of water to be drained and on the drainage effect, in this embodiment, the axial direction of the overflow pipe 07 is tangential to the side wall of the overflow section 32, and the axial direction of the overflow pipe 07 is opposite to the direction of rotation of the central rotating body 02. The overflow pipe 07 is tangentially arranged along the side wall of the overflow section 32, and the axial direction is opposite to the rotation direction of the central rotating body 02, so that the overflow pipe 07 can directly meet the purified water which flows in a rotating way, and a better drainage effect is achieved.
In addition, the cover 03 mainly collects the purified water, and the purified water does not enter the overflow pipe 07 completely, so that the excess purified water needs to be treated, and in this embodiment, a backflow gap is formed between the contraction section 31 and the tank wall. Therefore, the contraction section 31 and the side wall of the biochemical pool keep a gap, and water after passing through the overflow section 32 can flow back again to perform a new round of aeration, so that secondary aeration purification is completed, and the purification effect is improved.
A space is reserved between the central rotating body 02 and the sewage discharge cavity 11, a racemization baffle 04 is arranged in the space, and one end of the racemization baffle 04 is fixed on the wall of the tank body 01. The despin baffle 04 is mainly used for eliminating the rotating force formed by the rotation of the central rotating body 02, so that the sludge can be conveniently recovered. In order to further achieve the effect of collecting sludge and racemizing, in the embodiment, the racemization baffle plates 04 are spirally arranged at intervals along the axial direction of the tank body 01. Set up like this, on the one hand can eliminate the effect of whirl gradually, be unlikely to suddenly to the whirl resistance block cause to activated sludge's the condition of rushing away, and then influence the whirl aeration effect of top, on the other hand, the gathering mud that the whirl formed also can slowly shrink along the helix in the blowdown chamber of biochemical pond bottom, reaches better mud collection effect.
The specific implementation of this example is as follows:
the central rotator 02 rotates to drive the sewage in the tank body 01 to rotate to generate rotational flow, and simultaneously, the air is ejected from the air ejecting holes 22 of the central rotator 02 through the high-pressure air pump 51 and is fully mixed with the sewage in the tank body 01 for aeration treatment. The water body is gradually purified in the aeration process, due to the effect of the rotational flow, the sludge can be attached to the side wall of the tank body 01, the water body at the center of the rotational flow can rapidly rise due to the change of the cross section areas of the contraction section 31 and the overflow section 32 on the cover body 03, the sludge can be discharged due to the change, the rising purified water body is discharged through the overflow pipe 07 at the overflow section 32, meanwhile, the undischarged water body can flow back again along the backflow gap formed between the contraction section 31 and the tank wall to perform a new round of aeration, the secondary aeration purification is completed, and the purification effect is improved.
On the other hand, newly-advanced sludge enters the tank body 01 through the sewage conduit 61 and is mixed with the sludge on the outer layer of the rotational flow again for aeration, and after the aeration is finished, the sludge gradually sinks due to the fact that the weight of the sludge gradually sinks, the water body and the sludge stop rotating after encountering the racemization baffle 04, and the sludge gradually sinks to the sewage discharge cavity and is discharged.
The sludge in the biochemical tank realizes rotational flow through the mechanical rotation of the central rotating body 02, and the rotational flow effect of the mechanical rotational flow mode cannot be influenced by the depth of the biochemical tank. And because the rotation of the central rotator 02 can make the middle part of the axis of the biochemical pool form a negative pressure area, and the air is ejected from the air ejecting holes 22 of the central rotator 02, on one hand, a certain work load is lightened for the high-pressure air pump 51, and simultaneously, the energy is saved, on the other hand, the air is led out from the center of the rotational flow and can be fully dispersed, so that the air and the sewage can be fully and uniformly mixed, and the aeration effect is improved. In addition, the newly-fed sewage is sprayed out from the wall of the biochemical tank, on one hand, the jet flow sprayed out by the sewage can disturb the rotational flow to a certain extent and already forms layering on the side wall of the biochemical tank so as to be convenient for secondary mixing, and on the other hand, the newly-fed sewage can be ensured to be fully aerated. A cover body 03 with a contraction section 31 is arranged above the central rotating body 02, so that the sludge is thrown to the side wall of the biochemical pool due to the action of the rotational flow, the purified water rises along with the contraction section 31, and the purified water is guided out by the overflow pipe 07 at the contraction section 31.
The described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (6)
1. A high-efficiency rotational flow active sludge biochemical tank is characterized by comprising a tank body, a central rotating body, a cover body, a rotation-eliminating baffle, a high-pressure air pump, an air conduit, a high-pressure water pump, a sewage conduit and an overflow pipe; the tank body is cylindrical, and the bottom of the tank body is contracted into a cone to form a sewage discharge cavity; the central rotating body is positioned in the tank body, and the axis of the central rotating body is coaxial with the axis of the tank body; the central rotating body is hollow to form an air cavity, and the central rotating body is provided with an air injection hole; the gas injection hole is communicated with the gas cavity; one end of the air conduit is connected with the high-pressure air pump, the other end of the air conduit penetrates through the wall of the tank body and then is arranged on the central rotating body, and the air conduit is communicated with the air cavity; one end of the sewage conduit is connected with the high-pressure water pump, and the other end of the sewage conduit penetrates through the wall of the tank body and is positioned in the tank body;
the cover body is arranged in the tank body and is positioned at one end, far away from the sewage discharge cavity, of the central rotating body; the cover body comprises a contraction section and an overflow section which are connected with each other; the contraction section and the overflow section are arranged around the central rotating body; an overflow port is formed in the overflow section; one end of the overflow pipe is connected with the overflow port, and the other end of the overflow pipe penetrates through the wall of the tank body; a space is reserved between the lower end of the central rotating body and the sewage discharge cavity, a racemization baffle is installed in the space, and one end of the racemization baffle is fixed on the wall of the pool body.
2. The biochemical pond of rotational flow active sludge as claimed in claim 1, wherein the axis of the air injection hole is tangential to the side wall of the central rotator, and the injection direction of the air injection hole is opposite to the rotation direction of the central rotator.
3. The biochemical pond of high efficiency rotational flow active sludge as claimed in claim 1, wherein the drainage direction of the sewage conduit is opposite to the rotation direction of the central rotating body.
4. The biochemical pond of claim 1, wherein a backflow gap is formed between the contraction section and the pond wall.
5. The biochemical pond of claim 1, wherein the axial direction of the overflow pipe is tangential to the side wall of the overflow section, and the axial direction of the overflow pipe is opposite to the rotation direction of the central rotating body.
6. The biochemical pool of high efficiency rotational flow activated sludge as claimed in claim 1, wherein the despinning baffle is spirally spaced along the axial direction of the pool body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121816069.3U CN215365090U (en) | 2021-08-05 | 2021-08-05 | High-efficient whirl activated sludge biochemical pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121816069.3U CN215365090U (en) | 2021-08-05 | 2021-08-05 | High-efficient whirl activated sludge biochemical pond |
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| Publication Number | Publication Date |
|---|---|
| CN215365090U true CN215365090U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121816069.3U Active CN215365090U (en) | 2021-08-05 | 2021-08-05 | High-efficient whirl activated sludge biochemical pond |
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| Country | Link |
|---|---|
| CN (1) | CN215365090U (en) |
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2021
- 2021-08-05 CN CN202121816069.3U patent/CN215365090U/en active Active
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