CN215756921U - Air-lift circulation reaction device - Google Patents
Air-lift circulation reaction device Download PDFInfo
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- CN215756921U CN215756921U CN202122024377.9U CN202122024377U CN215756921U CN 215756921 U CN215756921 U CN 215756921U CN 202122024377 U CN202122024377 U CN 202122024377U CN 215756921 U CN215756921 U CN 215756921U
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Abstract
The utility model relates to an air lift circulation reaction device, which comprises a sewage treatment tank, an aeration and back overflow integrated device arranged at the upper half part of the sewage treatment tank and an aeration device arranged below the aeration and back overflow integrated device; the aeration and circulation overflow integrated device comprises a first flow guide channel formed by enclosing vertically arranged plates, a second flow guide channel formed by enclosing the plates into a horn shape and connected with the bottom of the first flow guide channel, and an outer flow guide channel formed by enclosing the vertically arranged plates and sleeved on the periphery of the first flow guide channel; the height of the outer diversion channel is larger than that of the first diversion channel, and the top end of the first diversion channel is configured not to exceed the highest water level line of the sewage to be treated. By adopting the technical scheme, the sewage treatment efficiency is improved, and the operation energy consumption is reduced.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to an air-lift circulation reaction device.
Background
In the field of sewage treatment, if the biochemical section adopts A/O, A2The processes such as the O and the like basically perform functional partitioning on a plane, and generally have the problems of large occupied area, high operation energy consumption and troublesome management and maintenance.
Utilize classical chemical theory and through ingenious structural design, combine oxygen deficiency (A section), good oxygen (O section) aeration biochemical reaction, sediment overflow water in vertical and combine in an organic whole, can improve sewage treatment system's sludge concentration and volume load by a wide margin, shorten reaction time for whole sewage treatment system's area is littleer, and the start-up speed is faster.
However, the conventional aeration circulation device still has the defects of low integration level and the need of additionally matching various other parts; meanwhile, the problem of high energy consumption also exists.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the air-lift circulation reaction device has the effects of improving the construction efficiency of sewage treatment engineering, reducing the occupied area of facilities and reducing the energy consumption in operation.
In order to achieve the purpose, the utility model provides the following technical scheme:
an air-lift circulation reaction device comprises a first flow guide channel formed by enclosing vertically arranged plates, a second flow guide channel formed by enclosing the plates into a horn shape and connected with the bottom of the first flow guide channel, and an outer flow guide channel formed by enclosing the vertically arranged plates and sleeved on the periphery of the first flow guide channel; the height of the outer flow guide channel is larger than that of the first flow guide channel, the outer included angle setting range between the side wall of the first flow guide channel and the side wall of the second flow guide channel is 130-160 degrees, and the top end of the first flow guide channel is configured not to exceed the highest water level line of the sewage to be treated.
By adopting the technical scheme, the outer included angle setting range between the side wall of the first flow guide channel and the side wall of the second flow guide channel is 130-160 degrees, so that the second flow guide channel can converge ascending air flow, and the converging range of the second flow guide channel is expanded. In the process of converging the airflow, the inclined side wall of the second flow guide channel enables the water body mixture to collide with the side wall of the second flow guide channel, so that the mixing effect of the second flow guide channel is better, sewage is fully contacted with activated sludge or chemical agents, and the sewage treatment efficiency is improved; meanwhile, the aeration and circulating overflow integrated device is convenient to install, and does not need to be matched with various other parts in addition to improve the construction efficiency of sewage treatment engineering. The bottom through first water conservancy diversion passageway is connected with the top of second water conservancy diversion passageway, and under the confluence of second water conservancy diversion passageway, the water body mixture enters into the first water conservancy diversion passageway of relatively narrower, can promote the speed that the water body mixture rises, avoids arousing the circulation because of the aeration is not enough to weaken, leads to sedimentation zone mud deposit jam circulation way, shortens reaction time for whole sewage treatment system is more intensive, and area is littleer, and the start-up speed is faster.
The utility model is further configured to: the height of the bottom end of the outer flow guide channel at least extends to the lower part of the first flow guide channel.
By adopting the technical scheme, the water mixture reaches the middle area of the clarification and separation functional area, the water mixture is prevented from directly flowing out of the overflow trough without being effectively layered, and the efficiency of the clarification and separation functional area is improved.
The utility model is further configured to: the height of the outer flow guide channel exceeds the height of the first flow guide channel by 300-1000 mm.
By adopting the technical scheme, the water mixture rising to the top end of the first diversion channel is prevented from directly crossing the outer diversion channel to enter the clarification and separation functional area, and the interference to the clarification and separation functional area is avoided.
The utility model is further configured to: the outer side wall of the outer flow guide channel is provided with an overflow groove, one end of the overflow groove is provided with a water collecting barrel, and the water collecting barrel and the overflow groove are communicated with each other.
By adopting the technical scheme, the clear water separated in the clarification separation functional zone overflows to the overflow trough, so that the separated clear water can be discharged in time by the sewage treatment tank.
The utility model is further configured to: the top end of the side wall of the overflow groove and the top end of the first flow guide channel are 0-100mm lower.
By adopting the technical scheme, the overflow trough is convenient for collecting the clean water on the uppermost part of the water level line of the sewage treatment tank.
The utility model is further configured to: the overflow groove is arranged along the whole length of the periphery of the outer flow guide channel.
By adopting the technical scheme, the water collection efficiency of the overflow groove is improved, and the space utilization rate of the exposure and back overflow integrated device is increased.
The utility model is further configured to: and an opening at the upper part of the outer diversion channel covers the gas-collecting hood, and an exhaust pipe is connected above the gas-collecting hood.
Through adopting above-mentioned technical scheme, collect the foul smell that produces in the sewage treatment process in unison, avoid gaseous dissipation to the air in, cause the pollution to the air, be favorable to the environmental protection, reduce the influence of device operation to the environment.
The utility model is further configured to: the exposure and overflow integrated device is configured into a rectangular body or a cylindrical body.
By adopting the technical scheme, the device can be in different shapes, the same technical effect can be achieved, and the adaptability of the device is improved.
The utility model is further configured to: when the aeration-recirculation-overflow integrated device is configured as a rectangular body, the length range of the short side of the first flow guide channel is 300-.
By adopting the technical scheme, the first flow guide channel is narrower than the second flow guide channel, so that the rising speed of a water body mixture can be increased, and the phenomenon that the circulation is weakened due to insufficient aeration to cause sludge deposition in a settling zone to block the circulation channel is avoided.
The utility model is further configured to: the distance between the inner side wall of the outer flow guide channel and the outer side wall of the first flow guide channel is L1, the distance between the short sides of the first flow guide channel is L2, and L1 is 1/10-1/3 of L2.
Through adopting above-mentioned technical scheme, under the action of gravity, promote the velocity of flow of water mixture at the downwash passageway, avoid the phenomenon of water mixture to appear flowing backwards.
The utility model is further configured to: the overflow groove is positioned in the long edge direction of the outer diversion channel, the water collecting barrels are communicated with each other, and any water collecting barrel discharges water in the water collecting barrel through an external siphon.
Through adopting above-mentioned technical scheme, need not to set up a plurality of siphons, reduced the manufacturing cost of device, and single siphon extends from the upper end of gas collecting channel, does benefit to the installation and the dismantlement of gas collecting channel for the installation effectiveness of device is more high.
The utility model is further configured to: the bottom of the second flow guide channel is provided with a plurality of mutually separated support legs, and the support legs are 50-100mm longer than the edge of the second flow guide channel in the vertical direction.
By adopting the technical scheme, the aeration and overflow-back integrated device is lifted up through the support legs, and then a gap is arranged below the aeration and overflow-back integrated device, so that the formation of circulation is facilitated; meanwhile, the interference of bubbles generated by the isolation aeration device is realized, and the standing and the precipitation of the water body mixture in the clarification and separation functional area are facilitated.
In conclusion, the utility model has the following beneficial effects:
1. the second guide channel is formed by enclosing plates into a horn shape and is connected with the bottom of the first guide channel, so that the second guide channel can converge ascending air flow, and the convergence range of the second guide channel is expanded; meanwhile, the inclined side wall of the second flow guide channel enables the water body mixture to collide with the side wall of the second flow guide channel in the process of converging the air flow, so that the mixing effect of the second flow guide channel is better, sewage is fully contacted with activated sludge or chemical agents, and the sewage treatment efficiency is improved;
2. the bottom through first water conservancy diversion passageway is connected with the top of second water conservancy diversion passageway, and under the confluence of second water conservancy diversion passageway, the water body mixture enters into the first water conservancy diversion passageway of relatively narrower, can promote the speed that the water body mixture rises, avoids arousing the circulation because of the aeration is not enough to weaken, leads to sedimentation zone mud deposit jam circulation way, shortens reaction time for whole sewage treatment system is more intensive, and area is littleer, and the start-up speed is faster.
Drawings
FIG. 1 is a schematic structural diagram of the integrated device of the present embodiment;
fig. 2 is a schematic structural diagram of the gas collecting channel of the present embodiment;
FIG. 3 is a schematic structural view of a gas-lift loop reactor according to the present embodiment;
FIG. 4 is a sectional view showing the structure of the airlift loop reactor of this embodiment;
FIG. 5 is a schematic structural view of a module beam and an air baffle of the present embodiment;
FIG. 6 is an overall schematic view of the circular airlift loop reactor of this embodiment;
FIG. 7 is an overall plan view of the circular airlift loop reactor of this example;
FIG. 8 is a flow chart of the present embodiment.
Reference numerals: 1. a sewage treatment tank; 11. a module beam; 12. a gas baffle; 21. a first flow guide passage; 22. a second flow guide channel; 221. a support leg; 23. an outer flow guide channel; 3. an overflow trough; 31. a water collection barrel; 4. a gas-collecting hood; 41. an exhaust pipe; 5. a return pipe; 6. an aeration device; 7. an air tube; 8. a connecting member; 9. and (4) returning the seam.
Detailed Description
The present invention is further described with reference to the drawings and the exemplary embodiments, wherein like reference numerals are used to refer to like elements throughout. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.
The embodiments are described in such detail as to enable those skilled in the art to practice the utility model without the need for inventive faculty. Embodiments may be one or more, as the case may be, to support the intended scope.
For the utility model of the product pair, the detailed description will be made with reference to the accompanying drawings to describe the mechanical structure of the product in detail, and to illustrate the interrelationship between the components, such as the connection relationship, the cooperation relationship, etc., and if necessary, the operation process or operation steps thereof. When the method is used, the process conditions are written except the steps.
The utility model discloses an aeration and circulation overflow integrated device and a sewage treatment system, wherein the aeration and circulation overflow integrated device comprises a sewage treatment tank 1, an aeration ring integrated device is arranged at the upper half part of the sewage treatment tank 1, and an aeration device is arranged below the aeration and circulation overflow integrated device, the aeration ring integrated device comprises a first flow guide channel 21 formed by enclosing vertically arranged plates, a second flow guide channel 22 formed by enclosing the plates into a horn shape and connected with the bottom of the first flow guide channel 21, and an outer flow guide channel 23 formed by enclosing the vertically arranged plates and sleeved on the periphery of the first flow guide channel 21; the height of the outer diversion channel 23 is larger than that of the first diversion channel 21, the top end of the first diversion channel 21 is configured to be not beyond the highest water level line of the sewage to be treated, the effect of improving the sewage treatment efficiency is achieved, meanwhile, the energy consumption is reduced, and the effects of energy conservation and environmental protection are achieved.
As shown in fig. 3 and 4, when the aeration and recirculation integrated device is configured as a rectangular body, the height of the aeration and recirculation integrated device is 2600-.
The outer flow guide channels 23 are respectively fixedly connected at the corners of the first flow guide channel 21, the cross sections of the outer flow guide channels 23 are four groups of rectangular frames with central symmetry, the height of the outer flow guide channel 23 exceeding the height of the first flow guide channel 21 is 300-1000mm, the height of the bottom end of the outer flow guide channel 23 at least extends to the lower part of the first flow guide channel 21, the distance between the inner side wall of the outer flow guide channel 23 and the outer side wall of the first flow guide channel 21 is L1, the distance between the short sides of the first flow guide channel 21 is L2, and L1 is 1/10-1/3 of L2.
Specifically, the distance range of the short side of the first flow guide channel 21 is 800mm, and the distance of the long side is 5000mm, so that the height of the first flow guide channel is 1200 mm; the distance range of the short side at the bottom of the second flow guide channel 22 is 2800mm, the height of the second flow guide channel is 1000mm, the distance of the long side of the second flow guide channel 22 from top to bottom is 5000mm, and the height of the support leg 221 is 100 mm; the angle of the outward folding of the opposite side walls of the second guide passage 22 is 135 deg.. Since the range of L2 is 800mm, then L1 is chosen to be 200 mm. The height of the bottom end of the outer guide channel 23 is flush with the lower end of the first guide channel 21.
The outer side wall of the outer diversion channel 23 is provided with an overflow groove 3 formed by L-shaped plates, the top end of the side wall of the overflow groove 3 is 0-100mm lower than the top end of the first diversion channel 21, the overflow groove 3 is arranged along the periphery of the outer diversion channel 23 in a full-length mode, the overflow groove 3 is welded on the middle upper portions of the two groups of long side directions of the outer side wall of the outer diversion channel 23, a water collecting bucket 31 is communicated below one end of the overflow groove 3, the two groups of water collecting buckets 31 are respectively connected with a U-shaped pipe at the bottom ends, the two groups of water collecting buckets 31 are mutually communicated through the U-shaped pipes, any water collecting bucket 31 is externally connected with a vertically arranged siphon, and the siphon upwards passes through the gas collecting hood 4 and extends to a water outlet channel of the sewage treatment tank 1.
In another embodiment, the overflow trough 3 can be independent of the aeration and back-overflow integrated device, and the overflow trough 3 can be fixed on the side wall of the sewage treatment tank 1 and also plays a role in collecting and discharging clean water in the clarification and separation functional zone.
The middle bottom of the U-shaped pipe is communicated with a downward extending drainage hose, the other end of the drainage hose extends out of the sewage treatment tank 1, and clear water in the water collecting barrel 31 is discharged through the drainage hose under the action of the self gravity of the water body.
As shown in fig. 5, a plurality of module beams 11 and gas baffles 12 are fixedly installed in the sewage treatment tank 1, the heights of the module beams 11 and the gas baffles 12 are 3200mm, the gas baffles 12 and the module beams 11 are arranged perpendicular to each other, the gas baffles 12 are transversely distributed, the module beams 11 are longitudinally distributed, the module beams 11 and the gas baffles 12 are at the same horizontal height and are communicated with each other, four groups of support legs 221 are respectively arranged on the upper end surfaces of the adjacent module beams 11, and the projections of the module beams 11 and the gas baffles 12 in the vertical direction cover the projection of the bottom profile of the second flow guide channel 22 in the vertical direction, so that the aeration and overflow back integrated device is integrally lifted; meanwhile, a backflow seam 9 with a preset height is reserved between the bottom end of the aeration and overflow integrated device and the upper end faces of the module beam 11 and the air baffle plate 12, and the distance between the bottoms of the adjacent aeration and overflow integrated devices in the long edge direction is at least greater than 50 mm.
In another embodiment, as shown in fig. 6 and 7, when the exposing and back-overflowing integrated device is configured as a circular body, the first flow guide channel 21 is cylindrical, the second flow guide channel 22 is horn-shaped, the bottom end of the first flow guide channel 21 is fixedly connected with the top end of the second flow guide channel 22, the outer flow guide channel 23 is cylindrical, and surrounds the outer side of the first flow guide channel 21, a plurality of connecting members are arranged between the inner side wall of the outer flow guide channel 23 and the outer side wall of the first flow guide channel 21, one end of each connecting member is fixedly connected to the inner side wall of the outer flow guide channel 23, and the other end of each connecting member is fixedly connected to the outer side wall of the first flow guide channel 21. The overflow groove 3 is arranged along the outer side wall of the outer flow guide channel 23 at the same horizontal height, and the cross section of the overflow groove 3 is annularly arranged. The spacing distance between the bottoms of the adjacent aeration and overflow-back integrated devices is at least more than 50 mm.
The sewage treatment tank 1 is fixedly provided with a plurality of module beams 11 and gas baffle plates 12, the module beams 11 and the gas baffle plates 12 are staggered to form a grid structure, the gas baffle plates 12 and the module beams 11 are on the same horizontal plane and are mutually communicated, and the projection of each single grid in the vertical direction and the projection of the bottom outline of the second flow guide channel 22 in the vertical direction are coincided with each other.
The bottom end of the sewage treatment tank 1 is fixedly connected with a vertically arranged return pipe 5, the return pipe 5 extends to the bottom of the tank along the internal channels of the second guide channel 22 and the first guide channel 21, the distance between the top end of the return pipe 5 and the top end of the first guide channel 21 is 0-100mm, the length of the return pipe 5 is 2300mm, and the diameter of the return pipe 5 is 200 mm. The reflux pipe 5 is a hollow pipe with an opening at the upper part, and the pipe wall at the lower end of the reflux pipe 5 is provided with a plurality of reflux holes.
The preset distance from the aeration device 6 to the bottom of the sewage treatment pool 1 is 1600-plus 5000mm, the aeration device 6 respectively forms an aerobic section and an anoxic section above and below the sewage treatment pool 1, wherein the aerobic section and the anoxic section jointly form a biochemical reaction area.
In another embodiment, the aeration device 6 is located at the bottom end of the sewage treatment tank 1, the aeration port of the aeration device 6 is still vertically upward and is opposite to the lower opening of the second diversion channel 22, the aeration device 6 forms an aerobic section above the sewage treatment tank 1, the height of the aerobic section is 3200mm, and the aerobic section is separately formed into a biochemical reaction area.
The top opening lid of outer water conservancy diversion passageway 23 has closed the gas collecting channel 4 that plays sealed effect, and the top of gas collecting channel 4 is connected with blast pipe 41, and the junction between gas collecting channel 4 and outer water conservancy diversion passageway 23 adds and establishes the sealing strip for the airtight effect of gas collecting channel 4 is more good, avoids revealing of waste gas, reduces the influence to the environment.
The opposite outer side walls of the adjacent aeration and back overflow integrated devices form a clarification separation functional area together, and the clarification separation functional area is communicated with the biochemical reaction area through a backflow seam 9.
The working conditions and the principle of the aeration and back overflow integrated device and the sewage treatment system are as follows, as shown in figure 8, the working conditions and the principle of the aeration and back overflow integrated device comprise the following steps:
s1, adding sewage and a treating agent into the sewage treatment tank 1;
s2, carrying out biochemical reaction on the sewage in the sewage treatment tank 1;
s3, under the aeration action of the aeration device 6, the water mixture is mixed in the second diversion channel 22 in an upflow way;
s4, the water mixture rises along the first diversion channel 21 until the water mixture reaches the top;
s5, the water mixture turns over the first diversion channel 21, flows downwards along the down-flow channel to enter the clarification and separation functional area, and/or flows back downwards along the return pipe 5 to the bottom end of the sewage treatment tank 1;
s6, separating the water mixture into clear water and a water mixture in a clarification separation function area, and precipitating the water mixture to return to a biochemical reaction area;
s7, when the clear water is continuously separated in the clarification separation functional zone, the clear water gradually overflows to the overflow groove 3 and is collected and discharged through the overflow groove 3;
and S8, treating the waste gas.
Optionally, in S1, sewage and treating agent are added to the sewage treatment tank 1, which specifically includes the following steps:
the sewage and the treating agent are dispersed to the bottom of the sewage treatment tank 1 along a water inlet pipe, and the treating agent is a chemical agent or microorganism;
wherein, the chemical agent can be selected as a phosphorus removal agent and/or a flocculating agent and/or a coagulant.
Optionally, in S2, the sewage undergoes a biochemical reaction in the sewage treatment tank 1, which specifically includes the following steps:
in the aerobic section, organic matters in the sewage are utilized to carry out oxidation reaction and nitration reaction.
In another embodiment, firstly, in the anoxic section, the organic matters in the sewage are utilized to carry out denitrification reaction;
then, in the aerobic section, organic matters in the sewage are utilized to carry out oxidation reaction and nitration reaction, part of nitration liquid generated by the nitration reaction flows back to the bottom end of the sewage treatment tank 1 through a return pipe 5, and the other part flows back to the biochemical reaction area through a return slit 9.
Has the functions of removing organic matters, nitrogen and phosphorus, simple process flow and better sludge settleability.
Optionally, in S3, the water mixture is mixed in the second diversion channel 22 in an upflow manner, which specifically includes the following steps:
after the water level reaches the water level line of the sewage treatment tank 1, aeration is performed by starting the aeration device 6, bubbles are generated in the aeration process, the rising action of the bubbles enables the water mixture to collide with the side wall of the second diversion passage 22, and an upflow and mixing effect is generated in the second diversion passage 22.
Optionally, in S4, the method includes the following steps:
the water mixture sequentially passes through the second diversion channel 22 to be converged, flows upwards along the first diversion channel 21, rises to the top of the first diversion channel 21 under the action of air-lift power, and bubbles are released.
Optionally, in S5, returning to the bottom end of the sewage treatment tank 1 along the return pipe 5, specifically, the method includes the following steps:
when the water mixture loses air-lift power, the water mixture flows back downwards through the top opening of the return pipe 5 under the action of gravity and circulates back to the bottom end of the sewage treatment tank 1 from the return hole.
Optionally, in S5, flowing down the down-flow channel into the clarification separation function, which specifically comprises the steps of:
when the water body mixture loses air-lift power, the water body mixture enters the downwash channel in four directions longitudinally and transversely outwards and flows downwards along the downwash channel until the water body mixture converges to the clarification and separation functional zone.
Optionally, in S6, the water mixture is separated into clear water and a water mixture in the clarification separation function zone, which specifically includes the following steps:
when the water mixture loses air-lift power, the water mixture is subjected to standing precipitation under the action of gravity, and due to the difference between densities, the clear water floats to the water level line of the sewage treatment tank 1, and the water mixture precipitates downwards and returns to the biochemical reaction area again through the backflow seam 9 to form circulation.
Optionally, in S7, the method specifically includes the following steps:
when the clear water overflows to the two groups of overflow grooves 3, the clear water flows into the water collecting barrels 31 respectively, and because the two groups of water collecting barrels 31 are communicated with each other, the siphon can be started by utilizing the principle of the communicating vessel, and then the clear water in the two groups of water collecting barrels 31 is discharged into the water outlet channel of the sewage treatment pool 1.
In another embodiment, when the clean water overflows into the two groups of overflow chutes 3, the clean water flows into the water collecting barrels 31 respectively, and the two groups of water collecting barrels 31 are communicated with each other, so that the water is discharged to the sewage treatment tank 1 through the drainage hose under the action of the gravity of the water.
Optionally, in S8, the method specifically includes the following steps:
the gas rises to the top of the first diversion channel 21 under the action of the air-lift power, the bubbles are released, meanwhile, the waste gas generated in the biochemical reaction process is released into the gas-collecting hood 4, and the waste gas is discharged out of the aeration and back overflow integrated device through the exhaust pipe 41.
In conclusion, the aeration loop back overflow sewage treatment integrated device and the use method thereof have the following beneficial effects:
1. adopt sewage treatment system's sewage treatment pond 1, combine anoxic section, good oxygen section aeration biochemical reaction, sediment overflow water in vertical to combine in an organic whole, can improve sewage treatment system's sludge concentration and volume load by a wide margin, shorten reaction time for whole sewage treatment system is more intensive, and area is littleer, and the start-up speed is faster.
2. The exposure and circulation overflow integrated device adopts non-suspension installation and can be fixed by directly sitting on the module beam 11, thus being simple and convenient.
3. The aeration and back overflow integrated device is provided with a first flow guide channel 21 which is narrower than a second flow guide channel 22, so that the phenomenon that the circulation flow is weakened due to insufficient aeration to cause sludge deposition in a settling zone to block the circulation flow channel is avoided.
4. The sewage treatment tank 1 adopting the sewage treatment system has higher oxygen supply efficiency and better mixing effect, the aeration and back overflow integrated sewage treatment device has simple and reliable structure, the structure of the aeration and back overflow integrated device can still be kept stable after being amplified, and the aeration and back overflow integrated device can be applied to large-scale sewage treatment engineering.
5. The application provides a method for using sewage treatment system can adopt chemical method or microorganism method to handle sewage, can satisfy the demand of different sewage treatment projects.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (12)
1. An air-lift circulation reaction device is characterized by comprising a first flow guide channel (21) formed by enclosing vertically arranged plates, a second flow guide channel (22) formed by enclosing the plates into a horn shape and connected with the bottom of the first flow guide channel (21), and an outer flow guide channel (23) formed by enclosing and sleeving the vertically arranged plates and sleeved on the periphery of the first flow guide channel (21); the height of the outer flow guide channel (23) is greater than that of the first flow guide channel (21), the outer included angle setting range between the side wall of the first flow guide channel (21) and the side wall of the second flow guide channel (22) is 130-160 degrees, and the top end of the first flow guide channel (21) is configured not to exceed the highest water level of the sewage to be treated.
2. A gas-lift loop reactor apparatus according to claim 1, wherein the height of the bottom end of the outer guide channel (23) extends at least to the lower part of the first guide channel (21).
3. A gas-lift loop reactor apparatus according to claim 1, wherein the height of the outer flow guide channel (23) exceeds the height of the first flow guide channel (21) by 300-1000 mm.
4. The air-lift loop reactor according to claim 1, wherein an overflow chute (3) is installed on the outer side wall of the outer flow guide channel (23), a water collecting bucket (31) is arranged at one end of the overflow chute (3), and the water collecting bucket (31) and the overflow chute (3) are communicated with each other.
5. A gas-lift loop reactor apparatus according to claim 4, wherein the top of the side wall of the overflow launder (3) is 0-100mm lower than the top of the first guide channel (21).
6. A gas-lift loop reactor apparatus according to claim 4, characterised in that the overflow launder (3) is arranged along the entire length of the outer periphery of the outer flow guide channel (23).
7. A gas-lift loop reactor according to claim 1, wherein the upper opening of the outer flow guide channel (23) covers the gas collecting hood (4), and an exhaust pipe (41) is connected above the gas collecting hood (4).
8. A gas-lift loop reaction device according to claim 4, wherein the gas-lift loop reaction device is configured as a rectangular body or a cylindrical body.
9. A gas-lift loop reactor according to claim 8, wherein when the gas-lift loop reactor is configured as a rectangular body, the length of the short side of the first flow guide channel (21) is 300-1400mm, and the length of the short side of the bottom of the second flow guide channel (22) is 2300-4000 mm.
10. A gas-lift loop reactor apparatus according to claim 9, wherein the distance from the inner side wall of the outer flow guide channel (23) to the outer side wall of the first flow guide channel (21) is L1, the distance from the short side of the first flow guide channel (21) is L2, and L1 is 1/10-1/3 of the L2.
11. The airlift loop reactor as set forth in claim 9, wherein said overflow launder (3) is located in the longitudinal direction of said outer flow guide channel (23), said water collection tanks (31) are connected to each other, and any one of said water collection tanks (31) discharges water in the water collection tank through an external siphon.
12. A gas-lift loop reactor apparatus according to claim 1, wherein the bottom of the second guide channel (22) is provided with a plurality of legs (221) separated from each other, the legs (221) being vertically longer than the edges of the second guide channel (22) by 50-100 mm.
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| CN202122024377.9U CN215756921U (en) | 2021-08-25 | 2021-08-25 | Air-lift circulation reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620537A (en) * | 2021-08-25 | 2021-11-09 | 清研环境科技股份有限公司 | Aeration loop back overflow sewage treatment integrated device and sewage treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620537A (en) * | 2021-08-25 | 2021-11-09 | 清研环境科技股份有限公司 | Aeration loop back overflow sewage treatment integrated device and sewage treatment system |
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