CN113336325A - Aeration device for aerobic tank - Google Patents
Aeration device for aerobic tank Download PDFInfo
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- CN113336325A CN113336325A CN202110816284.1A CN202110816284A CN113336325A CN 113336325 A CN113336325 A CN 113336325A CN 202110816284 A CN202110816284 A CN 202110816284A CN 113336325 A CN113336325 A CN 113336325A
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- 238000005273 aeration Methods 0.000 title claims abstract description 265
- 238000003756 stirring Methods 0.000 claims abstract description 130
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 239000010802 sludge Substances 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims description 7
- 239000010865 sewage Substances 0.000 abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 6
- 238000001556 precipitation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000013019 agitation Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000005276 aerator Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
- C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
The utility model relates to an aeration device used in an aerobic pool, which comprises an air supply mechanism, an air inlet main pipe, a first air inlet branch pipe, a second air inlet branch pipe, a tiled aeration layer and a stirring aeration layer; the air outlet of the air supply mechanism is connected with the air inlet of the air inlet main pipe and is used for supplying air to the air inlet main pipe; and a control valve is arranged at the air outlet of the air inlet main pipe, so that the air outlet of the air inlet main pipe is communicated with the air inlet of the first air inlet branch pipe, and/or the air outlet of the air inlet main pipe is communicated with the air inlet of the second air inlet branch pipe. When the water flow of the sewage discharged into the aerobic tank is large, air can be fed to the flat aeration layer through the air feeding mechanism, so that a large amount of air is fed into the aerobic tank; when water flow is small or cutoff, the air supply mechanism can supply air to the air inlet main pipe, the second air inlet branch pipe and the stirring aeration layer in sequence, so that the stirring aeration layer rotates along the center of the stirring aeration layer to stir the activated sludge in the aerobic tank, and the organic pollutants cannot be decomposed due to precipitation of the activated sludge.
Description
Technical Field
The disclosure relates to the technical field of sewage treatment, in particular to an aeration device used in an aerobic tank.
Background
The activated sludge process is a biological sewage treatment technology, and is a main biological sewage treatment method mainly using activated sludge. The technology specifically refers to that under the condition that an aeration device is used for oxygenating an aerobic tank, sewage and various microorganism populations in the aerobic tank are continuously mixed and cultured to form activated sludge. The biological coagulation, adsorption and oxidation of the activated sludge are utilized to decompose and remove organic pollutants in the sewage.
When the rural domestic sewage is treated by adopting an activated sludge method at present, because the water volume of the rural domestic sewage is large and small, when the water volume is large, an aeration device is started to carry out oxygenation in an aerobic tank so that the activated sludge decomposes organic pollutants in the sewage; when the water quantity is small, if the aeration device is continuously opened, energy is wasted, but if the aeration device is closed, activated sludge in the aerobic tank can form sediment, so that organic pollutants in the sewage cannot be decomposed.
Disclosure of Invention
In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides an aeration apparatus for use in an aerobic tank.
The utility model provides an aeration device used in an aerobic pool, which comprises an air supply mechanism with adjustable output power, an air inlet main pipe, a first air inlet branch pipe, a second air inlet branch pipe, a tiled aeration layer and a stirring aeration layer, wherein the tiled aeration layer and the stirring aeration layer are provided with aeration holes;
the air outlet of the air supply mechanism is connected with the air inlet of the air inlet main pipe and is used for supplying air to the air inlet main pipe; a control valve is arranged at the air outlet of the air inlet main pipe, so that the air outlet of the air inlet main pipe is communicated with the air inlet of the first air inlet branch pipe, and/or the air outlet of the air inlet main pipe is communicated with the air inlet of the second air inlet branch pipe; the air outlet of the first air inlet branch pipe is communicated with the aeration hole of the tiled aeration layer, and the air outlet of the second air inlet branch pipe is communicated with the aeration hole of the stirring aeration layer;
the flat aeration layer is positioned above the stirring aeration layer, and the stirring aeration layer can rotate along the center of the stirring aeration layer under the action of air fed by the air feeding mechanism so as to stir the activated sludge in the aerobic tank.
According to an embodiment of the present disclosure, the control valve is a three-way valve.
According to an embodiment of the present disclosure, the stirring aeration layer includes stirring blades, stirring aeration branch pipes, and vertical connecting shafts;
the vertical connecting shaft can rotate around the circumferential direction of the second air inlet branch pipe;
the aeration hole is formed in the stirring aeration branch pipe and communicated with the second air inlet branch pipe through the vertical connecting shaft;
the stirring aeration branch pipes are connected with the vertical connecting shaft respectively and are radially arranged outwards by taking the vertical connecting shaft as a center; one stirring aeration branch pipe is provided with one stirring blade.
According to an embodiment of the present disclosure, the stirring aeration branch pipes are provided with connecting members for fixing the stirring blades to the respective stirring aeration branch pipes.
According to an embodiment of the present disclosure, a plurality of the aeration holes are formed in the stirring branch aerator pipe, and all the aeration holes in any one of the stirring branch aerator pipes face the stirring branch aerator pipe adjacent to the stirring branch aerator pipe, so that the stirring aeration layer rotates under the action of the airflow ejected from the aeration holes.
According to an embodiment of the present disclosure, the second air inlet branch pipe includes a first pipe section and a second pipe section, an air inlet of the first pipe section is connected with an air outlet of the air supply mechanism, an air outlet of the first pipe section is connected with an air inlet of the second pipe section, an air outlet of the second pipe section is connected with an aeration hole on the stirring aeration branch pipe, the first pipe section is horizontally arranged above the tiled aeration layer, and the second pipe section vertically extends downward to a position below the tiled aeration layer.
According to an embodiment of the present disclosure, the stirring aeration layer further comprises a rotating support member, the upper end of the rotating support member is rotatably connected with the bottom end of the vertical connecting shaft, and the bottom end of the rotating support member is connected to the bottom wall of the aerobic tank.
According to an embodiment of the present disclosure, the tiled aeration layer includes a tiled main aeration pipe and a plurality of tiled branch aeration pipes communicated with the tiled main aeration pipe, an air inlet of the tiled main aeration pipe is communicated with an air outlet of the first branch air inlet pipe, and an air inlet of the tiled branch aeration pipe is communicated with an air outlet of the tiled main aeration pipe; the aeration holes are arranged on different flat aeration branch pipes.
According to an embodiment of the present disclosure, the extension direction of the tiled aeration branch pipes is perpendicular to the extension direction of the tiled aeration main pipe.
According to an embodiment of the present disclosure, the air supply mechanism comprises a variable frequency blower, and the variable frequency blower is arranged on the inner wall of the aerobic tank.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the utility model provides an aeration device used in an aerobic pool, which comprises an air supply mechanism with adjustable output power, an air inlet main pipe, a first air inlet branch pipe, a second air inlet branch pipe, a tiled aeration layer and a stirring aeration layer, wherein the tiled aeration layer and the stirring aeration layer are provided with aeration holes; the air outlet of the air supply mechanism is connected with the air inlet of the air inlet main pipe and is used for supplying air to the air inlet main pipe; a control valve is arranged at the air outlet of the air inlet main pipe so as to enable the air outlet of the air inlet main pipe to be communicated with the air inlet of the first air inlet branch pipe and/or enable the air outlet of the air inlet main pipe to be communicated with the air inlet of the second air inlet branch pipe; wherein, the air outlet of the first air inlet branch pipe is communicated with the aeration hole of the tiled aeration layer, and the air outlet of the second air inlet branch pipe is communicated with the aeration hole of the stirring aeration layer. When the water flow of the sewage discharged into the aerobic tank is large, the air supply mechanism can supply air to the tiled aeration layer sequentially through the air inlet main pipe and the first air inlet branch pipe or supply air to the tiled aeration layer sequentially through the air inlet main pipe and the first air inlet branch pipe, and simultaneously supply air to the stirring aeration layer through the air inlet main pipe and the second air inlet branch pipe, so that air is supplied into the aerobic tank; when rivers are less or when cutting off, can make the mechanism of supplying gas loop through the main pipe that admits air, the second air inlet branch pipe supplies gas to stirring aeration layer, thereby make stirring aeration layer rotate along its center under the air current effect and stir the activated sludge in the aerobic tank, prevent that it from deposiing and lead to unable decomposition organic pollutant, thereby can select the aeration layer that corresponds according to the big or small adaptability that gets into the sewage flow in the aerobic tank and carry out the aeration, avoid the energy waste that leads to when the sewage flow is less, and because the sewage flow is less or when cutting off, be through the stirring aeration layer that is located the below aeration, stirring aeration layer can stir mud simultaneously, thereby can avoid activated sludge to precipitate to a certain extent.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an aeration device for an aerobic tank, which is provided by an embodiment of the present disclosure and is arranged in the aerobic tank;
FIG. 2 is a schematic view of a partial connection structure of a main intake pipe and a branch intake pipe according to an embodiment of the disclosure;
fig. 3 is a schematic view of an assembly structure of a stirring blade and a stirring aeration branch pipe according to an embodiment of the present disclosure.
Wherein, 1, air supply mechanism; 2. a main air inlet pipe; 3. a first intake branch pipe; 4. a second intake branch pipe; 41. a first tube section; 42. a second tube section; 5. spreading an aeration layer; 51. laying the aeration main pipe; 52. laying the aeration branch pipes; 6. stirring the aeration layer; 61. a stirring blade; 62. stirring the aeration branch pipe; 63. a connecting member; 7. an aeration hole; 8. an aerobic tank.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
As shown in fig. 1 and fig. 2, the present disclosure provides an aeration apparatus for an aerobic tank, which includes an air supply mechanism 1 with adjustable output power, an air inlet main pipe 2, a first air inlet branch pipe 3, a second air inlet branch pipe 4, a tiled aeration layer 5, and a stirring aeration layer 6, wherein the tiled aeration layer 5 and the stirring aeration layer 6 are provided with aeration holes 7. The air outlet of the air supply mechanism 1 is connected with the air inlet of the air inlet main pipe 2 and is used for supplying air to the air inlet main pipe 2; a control valve is arranged at the air outlet of the main air inlet pipe 2 so as to communicate the air outlet of the main air inlet pipe 2 with the air inlet of the first air inlet branch pipe 3 and/or communicate the air outlet of the main air inlet pipe 2 with the air inlet of the second air inlet branch pipe 4; wherein, the air outlet of the first air inlet branch pipe 3 is communicated with the aeration hole 7 of the flat aeration layer 5, and the air outlet of the second air inlet branch pipe 4 is communicated with the aeration hole 7 of the stirring aeration layer 6. That is, when the flow of sewage discharged into the aerobic tank is large, the air supply mechanism 1 can supply air to the tiled aeration layer 5 through the main air inlet pipe 2 and the first air inlet branch pipe 3 in sequence, or supply air to the tiled aeration layer 5 through the main air inlet pipe 2 and the first air inlet branch pipe 3 in sequence, and supply air to the stirring aeration layer 6 through the main air inlet pipe 2 and the second air inlet branch pipe 4, thereby supplying air into the aerobic tank 8; when the water flow is small or the water flow is cut off, the air feeding mechanism 1 can feed air to the stirring aeration layer 6 sequentially through the air inlet main pipe 2 and the second air inlet branch pipe 4, so that the stirring aeration layer 6 rotates along the center of the stirring aeration layer under the action of the air flow to stir the activated sludge in the aerobic tank 8, and the organic pollutants cannot be decomposed due to the precipitation of the activated sludge is prevented.
In conclusion, the aeration device in this embodiment can select the corresponding aeration layer according to the size adaptability of the sewage flow entering the aerobic tank 8 to perform aeration, thereby avoiding energy waste caused by a small amount of sewage, and because the amount of sewage is small or the sewage is cut off, the aeration is performed through the stirring aeration layer 6 located below, and the stirring aeration layer 6 can stir the sludge, thereby avoiding the precipitation of activated sludge to a certain extent.
In addition, since the activated sludge is deposited on the bottom of the aerobic tank 8 by gravity when the aeration is stopped or insufficient, the agitation aeration layer 6 is provided below the flat aeration layer 5 in this embodiment to better agitate the activated sludge at the bottom of the aerobic tank 8. Specifically, the height between the stirring aeration layer 6 and the flat aeration layer 5 and the distance between the stirring aeration layer 6 and the bottom of the aerobic tank are set according to actual needs.
Further, since the demand of the activated sludge in the aerobic tank 8 for oxygen is limited, when the sewage discharged into the aerobic tank 8 is small or temporarily low, if the supply of the gas into the aerobic tank 8 is excessive, the oxygen concentration in the aerobic tank 8 becomes too high, which affects the activated sludge, and therefore, the output of the gas supply mechanism 1 in the present embodiment is adjustable to adjust the gas supply amount.
Illustratively, at night, the sewage discharge amount of the aerobic tank 8 is small, the air supply mechanism 1 may supply air to the agitation aeration layer 6 to aerate the sewage through the agitation aeration layer 6, and the agitation aeration layer 6 is rotated by the air flow ejected from the aeration holes 7 to agitate the activated sludge. At this time, the output power of the air supply mechanism 1 can be set to be small, and since the output power of the air supply mechanism 1 is small, less air is supplied to the stirring aeration layer 6 by the air supply mechanism 1 sequentially through the main air inlet pipe 2 and the second air inlet branch pipe 4, so that the stirring aeration layer 6 is ensured to supply oxygen in a trace amount in the aerobic tank, and the influence of too high oxygen concentration in the aerobic tank 8 on the activated sludge is avoided.
For example, in daytime, the discharge amount of sewage in the aerobic tank 8 is large, and the output power of the air supply mechanism 1 can be set to be large, so that a large amount of air is independently fed into the aerobic tank 8 through the flat aeration layer 5 to meet the requirement of oxygen of activated sludge, or a large amount of air is fed into the aerobic tank 8 through the flat aeration layer 5 and the stirring aeration layer 6 together to meet the requirement of oxygen obtaining of activated sludge. That is, when the air outlet of the main air inlet pipe 2 is communicated with the air inlet of the first air inlet branch pipe 3, the output power of the air supply mechanism 1 is greater than that of the air inlet mechanism 1 when the air outlet of the main air inlet pipe 2 is communicated with the air inlet of the second air inlet branch pipe 4, and the specific difference of the output power is set according to actual needs.
Illustratively, the air supply mechanism 1 is a variable frequency blower, the variable frequency blower is arranged on the inner wall of the aerobic tank 8, and the variable frequency blower can set the rotation frequency thereof according to actual needs so as to adjust the output power thereof, and further change the air supply amount when the variable frequency blower supplies air to the air inlet main pipe 2.
As shown in fig. 2, the control valve is a three-way valve for switching the communication between the main intake pipe 2 and the first intake branch pipe 3 and/or the communication between the main intake pipe and the second intake branch pipe 4. For example, when the discharge amount of the sewage in the aerobic tank 8 is large, the three-way valve is switched to the state that the air inlet main pipe 2 is communicated with the first air inlet branch pipe 3 or the air inlet main pipe 2 is communicated with the first air inlet branch pipe 3 and the second air inlet branch pipe 4, so as to supply a large amount of air into the aerobic tank 8; when the discharge amount of the sewage in the aerobic tank 8 is small or the flow is cut off, the three-way valve is switched to the main air inlet pipe 2 to be communicated with the second air inlet branch pipe 4 so as to supply a small amount of air into the aerobic tank 8.
Specifically, the manner in which the three-way valve is used to switch the communication between the main intake pipe 2 and the second intake branch pipe 3 and/or the second intake branch pipe 4 may be manual switching or electric switching, for example, the three-way valve is an electromagnetic valve, the electromagnetic valve is electrically connected to the air supply mechanism 1, and when the set value of the output power of the air supply mechanism 1 is a first threshold value, the three-way valve is switched to the communication between the main intake pipe 2 and the first intake branch pipe 3 or the communication between the main intake pipe 2 and both the first intake branch pipe 3 and the second intake branch pipe 4; when the set value of the output power of the air supply mechanism 1 is a second threshold value, the three-way valve is switched to the air inlet main pipe 2 to be communicated with the second air inlet branch pipe 4; wherein the first threshold is greater than the second threshold.
As shown in fig. 1 and 3, the stirring aeration layer 6 has the following structure: the stirring aeration layer 6 comprises stirring blades 61, stirring aeration branch pipes 62 and vertical connecting shafts; a plurality of stirring aeration branch pipes 62 are respectively connected with the vertical connecting shafts, one stirring aeration branch pipe 62 is provided with one stirring blade 61, and the vertical connecting shafts can wind the circumferential rotation of the second air inlet branch pipe 4, so that the stirring aeration branch pipes 62 are allowed to rotate around the circumferential rotation of the second air inlet branch pipe 4, and the activated sludge in the aerobic tank 8 is stirred to prevent the activated sludge from precipitating.
To the aeration hole 7 that sets up on the stirring aeration branch pipe 62 of stirring aeration layer 6, aeration hole 7 can set up a plurality ofly, and it sets up on stirring aeration branch pipe 62 along the length extending direction interval of stirring aeration branch pipe 62, and aeration hole 7 and second air inlet branch pipe are through 4 vertical connecting axle intercommunication to allow air that air feed mechanism 1 sent into to air inlet main pipe 2 to loop through second air inlet branch pipe 4, vertical connecting axle and send into aeration hole 7 on stirring aeration branch pipe 62 and arrange to the aerobic tank 8 in through aeration hole 7.
In this embodiment, there are a plurality of stirring aeration pipes 62, and the number of the stirring aeration pipes 62 may be three as shown in fig. 1, or may be 4 or more. A plurality of stirring aeration pipes 62 can be evenly distributed along the circumference of the vertical connecting shaft at intervals, namely, are radially arranged outwards with the vertical connecting shaft as the center. For example, when three stirring aeration legs 62 are provided as shown in FIG. 1, the interval between the adjacent stirring aeration legs 62 is 120. For another example, when four stirring aeration branch pipes 62 are provided, the interval between the adjacent stirring aeration branch pipes 62 is 90 °.
As shown in fig. 3, the stirring aeration branch pipe 62 is provided with a connecting member 63, and the connecting member 63 may be a snap-fit as shown in fig. 3, so that the stirring vanes 61 are fixed on the stirring aeration branch pipe 62 by the snap-fit; alternatively, the connecting member 64 may be a wire, and the stirring vanes 61 are wound and fixed on the stirring aeration branch pipes 62 by the wire; or, the stirring aeration branch pipes 62 and the stirring blades 61 are welded or bonded.
The shape of the stirring blade 61 may be a rectangular plate-like structure as shown in fig. 3, or may be an arc-shaped blade structure. The shape of the stirring aeration branch pipe 62 may be a circular pipe structure as shown in FIG. 3, or may be another shape such as a square pipe structure.
Further, in order to satisfy the requirement that the air fed into the stirring aeration pipes 62 by the air feeding mechanism 1 flows out from the aeration holes 7 of the stirring aeration pipes 62 and then pushes the whole stirring aeration layer 6 to rotate, all the aeration holes 7 of any one stirring aeration pipe 62 of the stirring aeration pipes 62 face the adjacent stirring aeration pipe 62, so that the stirring aeration layer 6 is rotated by the air flow ejected from the aeration holes 7.
For example, for each of the agitation aeration branches 62, the aeration holes 7 provided therein are provided on the right side thereof, and then the air ejected from all the aeration holes 7 of each of the agitation aeration branches 62 pushes the entire agitation aeration layer 6 to rotate counterclockwise; on the contrary, for each of the stirring aeration branches 62, the aeration holes 7 provided in each of the stirring aeration branches 62 are disposed on the left side thereof, so that the air ejected from all the aeration holes 7 pushes the entire stirring aeration layer 6 to rotate clockwise, and the rotation direction of the stirring aeration layer 6 is not particularly limited in this embodiment.
As shown in fig. 1, the second air inlet branch pipe 4 comprises a first pipe section 41 and a second pipe section 42, an air inlet of the first pipe section 41 is connected with an air outlet of the air feeding mechanism 1, an air outlet of the first pipe section 41 is connected with an air inlet of the second pipe section 42, an air outlet of the second pipe section 42 is connected with an aeration hole 7 on the stirring aeration branch pipe 62, the first pipe section 41 is horizontally arranged above the tiled aeration layer 5, and the second pipe section 42 vertically extends downwards to the lower part of the tiled aeration layer 5, so that the whole stirring aeration layer 6 is positioned below the tiled aeration layer 5, i.e. the stirring aeration layer 6 is closer to the bottom wall of the aerobic tank 8 than the aeration tiled layer 5, so that the stirring aeration layer 6 can better stir the activated sludge deposited at the bottom of the aerobic tank 8.
In addition, the first pipe section 41 and the second pipe section 42 may be an integral structure, that is, a complete pipe is bent to form the first pipe section 41 and the second pipe section 42, so as to facilitate the manufacturing process thereof. The first pipe section 41 and the second pipe section 42 can also be spliced to form the complete second intake branch pipe 4, for example, when there are some pipe section remainders, two pipe shapes can be adopted as the first pipe section 41 and the second pipe section 42 respectively in order to fully utilize the remainders, and then the two pipe sections are welded or bonded to form a whole.
In this embodiment, the stirring aeration layer 6 further includes a rotating support member, thereby supporting the stirring aeration layer 6; and the upper end of the rotating support member is rotatably connected with the bottom end of the vertical connecting shaft, and the bottom end of the rotating support member is connected with the bottom wall of the aerobic tank 8 so as to allow the vertical connecting shaft to rotate along the circumferential direction of the second air inlet branch pipe 4.
For the specific structure of the rotary connection between the rotary support member and the vertical connecting shaft, for example, a rotary protrusion is arranged on the outer wall of the bottom end of the vertical connecting shaft along the circumferential direction of the rotary protrusion, and a sliding groove matched with the rotary protrusion is arranged on the inner wall of the upper end of the rotary support member along the circumferential direction of the rotary support member, so that the vertical connecting shaft is allowed to slide in the sliding groove of the rotary support member through the rotary protrusion; or, the inner wall of the bottom end of the vertical connecting shaft is provided with a sliding groove along the circumferential direction of the inner wall, and the outer wall of the upper end of the rotating supporting piece is provided with a rotating bulge matched with the sliding groove along the circumferential direction of the outer wall, so that the vertical connecting shaft is allowed to be rotatably connected with the rotating supporting piece.
As shown in fig. 1, the structure of the flat aeration layer 5 is: the flat aeration layer 5 comprises a flat aeration main pipe 51 and a plurality of flat aeration branch pipes 52 communicated with the flat aeration main pipe 51, the air inlets of the flat aeration main pipe 51 are communicated with the air outlets of the first air inlet branch pipes 3, the air inlets of the flat aeration branch pipes 52 are communicated with the air outlets of the flat aeration main pipe 51, and aeration holes 7 are arranged on different flat aeration branch pipes 52, so that air fed into the air inlet main pipe 2 by the air feeding mechanism 1 can be fed into the aeration holes 7 of the flat aeration branch pipes 52 through the air inlet main pipe 2 and the first air inlet branch pipes 3 and is discharged into the aerobic tank 8 through the aeration holes 7.
In this embodiment, the number of the main tiled aeration pipes 51 may be set to be plural, for example, two as shown in fig. 1, and the number of the branch aeration pipes 52 connected to the main tiled aeration pipe 51 may be set to be 18 as shown in fig. 1, or may be 20 or more. The shape and size of the branch aeration pipes 52 may be identical to those of the branch agitating aeration pipes 62 to simplify the manufacturing process and improve the manufacturing efficiency.
As shown in fig. 1, the extension direction of the flat aeration branch pipe 52 is perpendicular to the extension direction of the flat aeration main pipe 51, so that the aeration holes 7 provided in the flat aeration branch pipe 52 uniformly supply air into the aerobic tank 8.
In addition, the flat aeration branch pipes 52 and the flat aeration main pipes 51 can be welded or sleeved in a sealing manner. For example, one end of the main tiled aeration pipe 52 is hermetically sleeved in one end of the main tiled aeration pipe 51, or one end of the main tiled aeration pipe 51 is hermetically sleeved in one end of the branch tiled aeration pipe 52.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An aeration device used in an aerobic tank is characterized by comprising an air supply mechanism (1) with adjustable output power, an air inlet main pipe (2), a first air inlet branch pipe (3), a second air inlet branch pipe (4), a tiled aeration layer (5) and a stirring aeration layer (6), wherein the tiled aeration layer (5) and the stirring aeration layer (6) are provided with aeration holes (7);
the air outlet of the air supply mechanism (1) is connected with the air inlet of the air inlet main pipe (2) and is used for supplying air to the air inlet main pipe (2); a control valve is arranged at the air outlet of the air inlet main pipe (2) so that the air outlet of the air inlet main pipe (2) is communicated with the air inlet of the first air inlet branch pipe (3), and/or the air outlet of the air inlet main pipe (2) is communicated with the air inlet of the second air inlet branch pipe (4); wherein the air outlet of the first air inlet branch pipe (3) is communicated with the aeration holes (7) of the tiled aeration layer (5), and the air outlet of the second air inlet branch pipe (4) is communicated with the aeration holes (7) of the stirring aeration layer (6);
the tiled aeration layer (5) is positioned above the stirring aeration layer (6), and the stirring aeration layer (6) can rotate along the center thereof under the action of air fed by the air feeding mechanism (1) to stir the activated sludge in the aerobic tank (8).
2. An aeration device used in an aerobic tank according to claim 1, wherein the control valve is a three-way valve.
3. The aeration device used in the aerobic tank according to the claim 1, wherein the stirring aeration layer (6) comprises stirring blades (61), stirring aeration branch pipes (62) and vertical connecting shafts;
the vertical connecting shaft can rotate around the circumferential direction of the second air inlet branch pipe (4);
the aeration holes (7) are formed in the stirring aeration branch pipes (62), and the aeration holes (7) are communicated with the second air inlet branch pipes (4) through the vertical connecting shafts;
the stirring aeration branch pipes (62) are multiple, the stirring aeration branch pipes (62) are respectively connected with the vertical connecting shaft and are radially arranged outwards by taking the vertical connecting shaft as a center; one of the stirring aeration branch pipes (62) is provided with one of the stirring blades (61).
4. An aeration apparatus for use in an aerobic tank according to claim 3, wherein the stirring aeration branch pipes (62) are provided with connecting members (63) for fixing the stirring blades (61) to the respective stirring aeration branch pipes (62).
5. The aeration apparatus used in the aerobic tank according to the claim 3, wherein the stirring aeration branch pipes (62) are provided with a plurality of aeration holes (7), and wherein all the aeration holes (7) on any one of the stirring aeration branch pipes (62) are oriented towards the stirring aeration branch pipe (62) adjacent to it, so that the stirring aeration layer (6) is rotated by the air flow ejected from the aeration holes (7).
6. The aeration device used in the aerobic tank according to the claim 3, wherein the second branch air inlet pipe (4) comprises a first pipe section (41) and a second pipe section (42), the air inlet of the first pipe section (41) is connected with the air outlet of the air feeding mechanism (91), the air outlet of the first pipe section (41) is connected with the air inlet of the second pipe section (42), the air outlet of the second pipe section (42) is connected with the aeration hole (7) on the stirring branch aeration pipe (62), the first pipe section (41) is horizontally arranged above the tiled aeration layer (5), and the second pipe section (42) vertically extends downwards to the lower part of the tiled aeration layer (5).
7. An aeration device for use in an aerobic tank according to claim 3, wherein the stirring aeration layer (6) further comprises a rotating support member, the upper end of which is rotatably connected to the bottom end of the vertical connecting shaft, the bottom end of which is connected to the bottom wall of the aerobic tank (8).
8. The aeration device for the aerobic tank according to any one of the claims 1 to 7, wherein the flat aeration layer (5) comprises a flat main aeration pipe (51) and a plurality of flat branch aeration pipes (52) communicated with the flat main aeration pipe (51), the air inlets of the flat main aeration pipe (51) are communicated with the air outlets of the first branch air inlet pipes (3), and the air inlets of the flat branch aeration pipes (52) are communicated with the air outlets of the flat main aeration pipe (51); the aeration holes (7) are arranged on different tiled aeration branch pipes (52).
9. An aeration device used in an aerobic tank according to the claim 8, characterized in that the extension direction of the flat aeration branch pipes (52) is perpendicular to the extension direction of the flat aeration main pipe (51).
10. An aeration device for use in an aerobic tank according to any one of the claims 1 to 7, wherein the air feeding mechanism (1) comprises a variable frequency blower, which is provided on the inner wall of the aerobic tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110816284.1A CN113336325A (en) | 2021-07-20 | 2021-07-20 | Aeration device for aerobic tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110816284.1A CN113336325A (en) | 2021-07-20 | 2021-07-20 | Aeration device for aerobic tank |
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| CN113336325A true CN113336325A (en) | 2021-09-03 |
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| CN202110816284.1A Pending CN113336325A (en) | 2021-07-20 | 2021-07-20 | Aeration device for aerobic tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114835341A (en) * | 2022-05-17 | 2022-08-02 | 广东北控环保装备有限公司 | Village and town sewage treatment device and treatment process |
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| DE3918295A1 (en) * | 1989-06-05 | 1990-12-06 | Egon Hans Kiessling | Activated sludge vessel aeration and agitation system - central propeller delivers liq. downwards and stationary vanes located parallel to banks of aeration elements prevent rotation of liq. |
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Application publication date: 20210903 |