CN218307230U - Biological trickling filtration tower aeration structures - Google Patents
Biological trickling filtration tower aeration structures Download PDFInfo
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- CN218307230U CN218307230U CN202222416327.XU CN202222416327U CN218307230U CN 218307230 U CN218307230 U CN 218307230U CN 202222416327 U CN202222416327 U CN 202222416327U CN 218307230 U CN218307230 U CN 218307230U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an aeration structure of a biological trickling filter, which comprises a trickling filter, wherein a packing layer is arranged in the trickling filter, and a positive pressure internal circulation cavity is arranged below the packing layer; the gas in the positive pressure internal circulation cavity overflows outside through the packing layer under the action of air pressure; the bottom of the positive-pressure internal circulation cavity is provided with a liquid accumulation layer, the negative-pressure internal circulation cavity also comprises an aeration pipe of which the lower end extends into the liquid accumulation layer, and an air supply unit which can send the air in the positive-pressure internal circulation cavity into the liquid accumulation layer in a bubble form through the aeration pipe, and the aeration pipe is internally provided with an air mixing channel; still include oxygen supply pipe and organic waste gas pipe, the derivation end intercommunication of oxygen supply pipe and organic waste gas pipe the gas mixing passageway in the aeration pipe makes the gas of exposing into the hydrops layer derive from the gas mixture of malleation inner loop chamber, oxygen supply pipe and organic waste gas pipe. The utility model discloses a supply oxygen pipe to supply the required oxygen of biofilm carrier growth, and the utilization ratio of oxygen is higher.
Description
Technical Field
The utility model relates to a bio-trickling filter equipment technical field especially relates to a bio-trickling filter aeration structures.
Background
The biological trickling filter is a device for treating organic waste gas, and a microbial film growing on the surface of biological filler in the biological trickling filter can decompose and purify organic pollutants in the waste gas. The microbial film on the surface of the biological filler needs to stably grow and needs external oxygen supply, and the oxygen carried in the organic waste gas cannot meet the growth requirement of the microbial film, so that an oxygen supply pipe is introduced to supplement the oxygen. Most of the existing oxygen supply pipes are directly connected into the biological trickling filter, the utilization rate of oxygen is not high, and the improvement is needed.
Disclosure of Invention
The invention aims to: in order to overcome the defects existing in the prior art, the utility model provides a biological trickling filter aeration structure which supplements oxygen required by the growth of biological fillers through an oxygen supply pipe, and the utilization rate of the oxygen is higher.
The technical scheme is as follows: in order to realize the aim, the utility model discloses an aeration structure of a biological trickling filter, which comprises a trickling filter, wherein a packing layer is arranged in the trickling filter, and a positive pressure inner circulation cavity is arranged below the packing layer; the gas in the positive pressure internal circulation cavity overflows outside through the packing layer under the action of air pressure; the bottom of the positive-pressure internal circulation cavity is provided with a liquid accumulation layer, the positive-pressure internal circulation cavity also comprises an aeration pipe of which the lower end extends into the liquid accumulation layer, and an air supply unit which can send the air in the positive-pressure internal circulation cavity into the liquid accumulation layer in a bubble form through the aeration pipe, and the aeration pipe is internally provided with an air mixing channel; still include oxygen supply pipe and organic waste gas pipe, the derivation end intercommunication of oxygen supply pipe and organic waste gas pipe the gas mixing passageway in the aeration pipe makes the gas of exposing into the hydrops layer derive from the gas mixture of malleation inner loop chamber, oxygen supply pipe and organic waste gas pipe.
Furthermore, the air supply unit comprises an active fan and a passive impeller, the passive impeller is arranged in the air mixing channel, the operation of the active fan enables the air mixing channel to form downward airflow, and the downward airflow in the air mixing channel drives the passive impeller to rotate.
Further, the air outlet end of the oxygen supply pipe and the air outlet end of the organic waste gas pipe are arranged in the gas mixing channel in an opposite mode.
Further, the passive impeller is arranged between the air outlet end of the oxygen supply pipe and the air outlet end of the organic waste gas pipe.
Further, the driving fan is an axial flow fan, an air outlet end of the axial flow fan is communicated with the upper end of the air mixing channel, and an air inlet end of the axial flow fan is communicated with the positive pressure internal circulation cavity.
Further, the passive impeller is an axial-flow impeller, and gases from the oxygen supply pipe, the organic waste gas pipe and the positive-pressure internal circulation cavity are mixed under the rotation of the axial-flow impeller.
Has the advantages that: the utility model discloses a biological trickling filter aeration structures makes the gas mixture who derives from malleation inner loop chamber, oxygen supply pipe and organic waste gas pipe expose into the hydrops in situ through the aeration pipe, improves the dissolved oxygen volume in the nutrient solution to improve the utilization ratio of oxygen.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The biological trickling filter aeration structure shown in the attached figure 1 comprises a trickling filter 1, wherein a packing layer 2 is arranged in the trickling filter 1, and a positive-pressure internal circulation cavity 3 is arranged below the packing layer 2; the gas in the positive pressure inner circulation cavity 3 overflows outside through the packing layer 2 under the action of air pressure. An exhaust pipe is arranged above the trickling filtration tower 1.
The bottom in malleation inner loop chamber 3 has hydrops layer 4, and the nutrient solution is gathered in hydrops layer 4, and the top of packing layer 2 is provided with spray system, the play liquid end of hydrops layer 4 pass through the circulating pump with spray system's feed liquor end links to each other. The device also comprises an aeration pipe 5 with the lower end extending into the liquid accumulation layer 4 and an air supply unit which can send the air in the positive pressure inner circulation cavity 3 into the liquid accumulation layer 4 in the form of bubbles through the aeration pipe 5, and an air mixing channel 6 is arranged in the aeration pipe 5. The device also comprises an oxygen supply pipe 7 and an organic waste gas pipe 8, wherein the leading-out ends of the oxygen supply pipe 7 and the organic waste gas pipe 8 are communicated with the gas mixing channel 6 in the aeration pipe 5, so that the gas exposed into the liquid loading layer 4 is derived from the gas mixture of the positive pressure internal circulation cavity 3, the oxygen supply pipe 7 and the organic waste gas pipe 8. The organic waste gas pipe 8 also carries oxygen, and the aeration pipe 5 aerates the oxygen in the organic waste gas pipe 8 and the oxygen supply pipe 7 into the liquid accumulation layer 4, so that the dissolved oxygen in the nutrient solution is increased, the oxygen content in the gas discharged from the trickling filtration tower 1 is reduced, and the utilization rate of the oxygen is increased.
The beneficial effects of the utility model reside in that: if organic waste gas pipe 8 and oxygen supply pipe 7 are directly linked together with malleation inner loop chamber 3, then the oxygen that provides in the oxygen supply pipe 7 can disperse earlier to malleation inner loop chamber 3 in, just can get into under the effect of air supply unit and mix gas passageway 6, and the oxygen content in mixing gas passageway 6 is lower, and is relatively poor with the effect that oxygen exposes to hydrops layer 4. And in the utility model discloses in, with organic waste gas pipe 8 and oxygen supply pipe 7 direct and aeration pipe 5 intercommunication for oxygen in the oxygen supply pipe 7 directly gets into and mixes gas passageway 6, and the oxygen content in mixing gas passageway 6 is higher, also just can be with more oxygen aeration in hydrops layer 4. Additionally, the utility model discloses in will the gas in the malleation inner loop chamber 3 constantly exposes to the sun in hydrops layer 4, formed the inner loop, further improved the dissolved oxygen volume on hydrops layer 4.
The air supply unit comprises an active fan 9 and a passive impeller 10, the passive impeller 10 is arranged in the air mixing channel 6, the active fan 9 operates to enable the air mixing channel 6 to form downward air flow, the downward air flow in the air mixing channel 6 drives the passive impeller 10 to rotate, and the rotation of the passive impeller 10 can stir air in turn, so that the air is promoted to be uniformly mixed. If the gas is not mixed uniformly, the proportion of oxygen and organic waste gas in the mixed gas entering each part of the packing layer 2 is different, the amount of oxygen obtained by the microorganism and the amount of organic pollutants to be treated are not uniform, so that the treatment effect of the microorganism on the organic pollutants in the upper part area of the packing is poor, and the utilization rate of the biological packing is reduced.
The end of giving vent to anger of oxygen supply pipe 7 with the end of giving vent to anger of organic waste gas pipe 8 is in mix gas passageway 6 and set up relatively, form the air current offset, promote gas mixing.
The driven impeller 10 is arranged between the air outlet end of the oxygen supply pipe 7 and the air outlet end of the organic waste gas pipe 8, and the driven impeller 10 stirs the oppositely rushing air flow to promote the gas mixing.
The active fan 9 is an axial flow fan, an air outlet end of the axial flow fan is communicated with the upper end of the gas mixing channel 6, an air inlet end of the axial flow fan is communicated with the positive pressure inner circulation cavity 3, gas in the positive pressure inner circulation cavity 3 is sent into the gas mixing channel 6, and gas mixture from the positive pressure inner circulation cavity 3, the oxygen supply pipe 7 and the organic waste gas pipe 8 is mixed in the gas mixing channel 6.
The passive impeller 10 is an axial-flow impeller, and gases from the oxygen supply pipe 7, the organic waste gas pipe 8 and the positive-pressure internal circulation cavity 3 are mixed under the rotation of the axial-flow impeller.
The utility model discloses at the during operation, oxygen supply pipe 7 and organic waste gas pipe 8 send oxygen and organic waste gas into the gas mixing channel 6 of aeration pipe 5 respectively under the drive of external power in, the air supply unit will malleation in the inner loop chamber 3 gas send into gas mixing channel 6 in and mix with oxygen and organic waste gas, and then will be originated from malleation inner loop chamber 3 with the form of bubble, supply the gas mixture of oxygen supply pipe 7 and organic waste gas pipe 8 to expose into hydrops layer 4 in, thereby improve the dissolved oxygen volume in the nutrient solution, reduce the oxygen content from dripping 1 discharge gas in the filtration tower, thereby improve the utilization ratio of oxygen.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a biological trickling filter aeration structures which characterized in that: comprises a trickling filtration tower (1), wherein a packing layer (2) is arranged in the trickling filtration tower (1), and a positive pressure inner circulation cavity (3) is arranged below the packing layer (2); the gas in the positive pressure inner circulation cavity (3) overflows outside through the packing layer (2) under the action of air pressure;
the bottom of the positive-pressure inner circulation cavity (3) is provided with a liquid accumulation layer (4), the positive-pressure inner circulation cavity also comprises an aeration pipe (5) the lower end of which extends into the liquid accumulation layer (4), and an air supply unit which can send the air in the positive-pressure inner circulation cavity (3) into the liquid accumulation layer (4) in a bubble form through the aeration pipe (5), wherein an air mixing channel (6) is arranged in the aeration pipe (5); still including oxygen supply pipe (7) and organic waste gas pipe (8), the delivery end intercommunication of oxygen supply pipe (7) and organic waste gas pipe (8) mix gas passageway (6) in aeration pipe (5), make the gas of exposing into hydrops layer (4) derive from the gas mixture of malleation inner loop chamber (3), oxygen supply pipe (7) and organic waste gas pipe (8).
2. The bio-trickling filter aeration structure of claim 1, wherein: the air supply unit comprises an active fan (9) and a passive impeller (10), the passive impeller (10) is arranged in the air mixing channel (6), the air mixing channel (6) forms downward airflow by the operation of the active fan (9), and the passive impeller (10) is driven to rotate by the downward airflow in the air mixing channel (6).
3. The bio-trickling filter aeration structure of claim 2, wherein: the air outlet end of the oxygen supply pipe (7) and the air outlet end of the organic waste gas pipe (8) are oppositely arranged in the gas mixing channel (6).
4. The biological trickling filter aeration structure of claim 3, wherein: the driven impeller (10) is arranged between the air outlet end of the oxygen supply pipe (7) and the air outlet end of the organic waste gas pipe (8).
5. The bio-trickling filter aeration structure of claim 4, wherein: the active fan (9) is an axial flow fan, the air outlet end of the axial flow fan is communicated with the upper end of the air mixing channel (6), and the air inlet end of the axial flow fan is communicated with the positive pressure inner circulation cavity (3).
6. The bio-trickling filter aeration structure of claim 5, wherein: the passive impeller (10) is an axial-flow impeller, and gases from the oxygen supply pipe (7), the organic waste gas pipe (8) and the positive-pressure internal circulation cavity (3) are mixed under the rotation of the axial-flow impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222416327.XU CN218307230U (en) | 2022-09-13 | 2022-09-13 | Biological trickling filtration tower aeration structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222416327.XU CN218307230U (en) | 2022-09-13 | 2022-09-13 | Biological trickling filtration tower aeration structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218307230U true CN218307230U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222416327.XU Active CN218307230U (en) | 2022-09-13 | 2022-09-13 | Biological trickling filtration tower aeration structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218307230U (en) |
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2022
- 2022-09-13 CN CN202222416327.XU patent/CN218307230U/en active Active
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