CN215975133U - Two heavy pond distribution well structures of antifouling mud deposit - Google Patents
Two heavy pond distribution well structures of antifouling mud deposit Download PDFInfo
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- CN215975133U CN215975133U CN202122114944.XU CN202122114944U CN215975133U CN 215975133 U CN215975133 U CN 215975133U CN 202122114944 U CN202122114944 U CN 202122114944U CN 215975133 U CN215975133 U CN 215975133U
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- sludge
- secondary sedimentation
- mud
- sedimentation tank
- pipeline
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- 230000003373 anti-fouling Effects 0.000 title 1
- 238000004062 sedimentation Methods 0.000 abstract 8
- 238000005273 aeration Methods 0.000 abstract 6
- 239000010802 sludge Substances 0.000 abstract 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 2
- 230000002093 peripheral Effects 0.000 abstract 2
- 229910052813 nitrogen oxide Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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Abstract
A distribution well structure of a secondary sedimentation tank for preventing sludge deposition comprises a distribution well with a middle inlet and a peripheral outlet, a rectangular secondary sedimentation tank with a periphery inlet and a peripheral outlet, and an aeration system, wherein the rectangular secondary sedimentation tank is connected with the distribution well through a distribution pipeline; the aeration system enters compressed air into the distribution well and the rectangular secondary sedimentation tank from the pre-buried aeration pipeline through the air delivery device to play an aeration role; the embedded aeration pipelines are respectively embedded in a mud collecting channel of the distribution well and a rectangular secondary sedimentation tank, and the pneumatic device respectively provides industrial gas for aeration of the mud collecting channel and nitrogen oxide removal gas for the rectangular secondary sedimentation tank through an air compressor. The utility model greatly reduces the occupied area, reduces the engineering investment, reduces the unevenness of daily water distribution, returned sludge and the like, simultaneously uniformly treats the sludge in the secondary sedimentation tank, reduces the complexity of operation management, and can reduce the condition of sludge floating in the secondary sedimentation tank by reducing denitrification reaction.
Description
Technical Field
The utility model relates to a secondary sedimentation tank water distribution well structure for preventing mud deposition.
Background
In recent years, due to the improvement of the requirement of environmental protection standards on the effluent index of a sewage plant and the stricter and stricter control of the occupied area of the sewage plant, the existing land use control requirement and energy saving requirement are difficult to achieve by depending on the past water distribution mode. Especially, large and medium-sized sewage plants need a plurality of groups of reaction tanks and sedimentation tanks, and if the backflow enters a bioreactor system and the water distribution in a secondary sedimentation tank is not uniform, the biological reaction is very unfavorable, so the water distribution is centralized and uniform, the operation cost and the energy consumption are reduced, and the occupied area is reduced.
The existing water distribution well structure is mostly a relay device arranged between a secondary sedimentation tank and a biological tank, the played water distribution effect is limited, meanwhile, long-term water distribution enables sludge in the water distribution well to be accumulated to cause blockage, meanwhile, the backflow ratio of the rectangular secondary sedimentation tank is small, the long-term backflow is not smooth, the sludge at the bottom of the secondary sedimentation tank is easy to cause nitrate denitrification due to oxygen deficiency, ammonia gas is generated to cause sludge floating, and the aeration of industrial gas aggravates the reaction due to the nitrogen oxide.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a secondary sedimentation tank water distribution well structure for preventing mud deposition.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a distribution well structure of a secondary sedimentation tank for preventing sludge deposition comprises a distribution well with a middle inlet and a peripheral outlet, a rectangular secondary sedimentation tank with a periphery inlet and a peripheral outlet, and an aeration system, wherein the rectangular secondary sedimentation tank is connected with the distribution well through a distribution pipeline; the aeration system enters compressed air into the distribution well and the rectangular secondary sedimentation tank from the pre-buried aeration pipeline through the air delivery device to play an aeration role; the embedded aeration pipelines are respectively embedded in a mud collecting channel of the distribution well and a rectangular secondary sedimentation tank, and the pneumatic device respectively provides industrial gas for aeration of the mud collecting channel and nitrogen oxide removal gas for the rectangular secondary sedimentation tank through an air compressor.
Furthermore, the water distribution well comprises a central water inlet channel, a water outlet channel and a mud collecting channel, wherein the central water inlet channel is provided with a flow stabilizing cylinder in the middle, the water outlet channel is arranged around the central water inlet channel and is not communicated with each other, and the mud collecting channel is sleeved around the water outlet channel; the lower part of the central water inlet channel is connected with a water outlet of sewage in the biological pond through a water inlet pipeline, and the upper part of the central water inlet channel is connected with a mud suction device through a mud discharge pipeline; the water outlet channel is used for evenly distributing sewage flowing out from the central water inlet channel, and the lower part of the water outlet channel is connected with the rectangular secondary sedimentation tank through a water outlet pipeline; the lower part of the mud collecting channel is connected with the rectangular secondary sedimentation tank through a mud returning pipeline, and the upper part of the mud collecting channel is connected with a mud sucking device through a mud sucking pipeline; inhale mud device and include collection mud pipeline and central mud jar, gather to central mud jar from collection mud pipeline through inhaling the mud that mud pipeline absorbs, the mud pipe way of arranging of central inlet channel is connected to the below of central mud jar.
Further, the rectangular secondary sedimentation tank comprises a water inlet tank, a water outlet tank, a sludge discharge tank and a nonmetal chain sludge scraping device; the water inlet tank is connected with a water outlet pipeline, the lower part of the sludge discharge tank is connected with a plurality of groups of sludge discharge pipes with holes on the pipe wall of the rectangular secondary sedimentation tank bottom surface through sludge discharge sleeves, and sludge on the rectangular secondary sedimentation tank bottom surface is scraped into the sludge discharge pipes by the nonmetal chain sludge scraping device and then is gathered in the sludge discharge tank.
Particularly, sewage in the biological pond flows into the central water inlet channel from the water inlet pipeline, is evenly distributed to the water outlet channel, flows into the water inlet groove of the rectangular secondary sedimentation tank through the water inlet pipeline, and then flows out through the water outlet groove; after sludge and sewage in the biological pond enter the rectangular secondary sedimentation tank water inlet tank together, the sludge is collected in the sludge discharge tank through the nonmetal chain sludge scraping device and flows back to the sludge collecting channel through the sludge return pipeline, and the sludge suction device discharges the collected sludge into the sludge discharge pipeline.
Furthermore, the pneumatic device comprises an air compressor, an oil-water separator, an industrial gas storage tank, an alkali liquor absorption device, an active carbon adsorption device and a nitrogen oxide removal gas storage tank; a cooler is arranged between the air compressor and the oil-water separator and used for reducing the temperature of compressed air generated by the air compressor; the oil-water separator is connected with an industrial gas storage tank through an air valve; one side of the industrial gas storage tank is connected with a gas conveying device and used for providing industrial gas for aeration of the sludge collecting channel, and the other side of the industrial gas storage tank enters the gas storage tank for removing nitrogen oxides through an alkali liquor absorption device and an activated carbon adsorption device.
In conclusion, the utility model has the following beneficial effects: the utility model has the advantages of collecting sewage, reducing the impact of flow change on a treatment system, uniformly distributing water and the like, can finish the centralized configuration of water inlet, water outlet, sludge return and the like of the secondary sedimentation tank, meets the requirement of one water distribution well on finishing multiple functions, greatly reduces the occupied area, reduces the engineering investment, reduces the nonuniformity of daily water distribution, returned sludge and the like, simultaneously uniformly treats the sludge in the secondary sedimentation tank, reduces the complexity of operation management, and can reduce the condition of sludge floating in the secondary sedimentation tank by reducing denitrification reaction.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of a distribution well of the present invention;
FIG. 3 is a schematic structural view of a rectangular secondary sedimentation tank according to the present invention;
fig. 4 is a schematic structural diagram of the pneumatic device of the present invention.
Detailed Description
The utility model will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the utility model is not restricted.
Please refer to fig. 1-4, the present invention aims to provide a solution to the problem of small backflow of a rectangular secondary sedimentation tank, in which a large amount of fists of sludge float upwards during the use of the rectangular secondary sedimentation tank, a non-metal chain mud scraper (worth to be proposed is consistent with the mud scraper used in the rectangular secondary sedimentation tank and has the functions of forward mud scraping and backward slag gathering) and an aerator is added in the rectangular secondary sedimentation tank to reduce the above-mentioned situations, but when the distribution well can only perform the function of water distribution, the sludge is treated in the rectangular secondary sedimentation tank, the treatment mode is dispersed, and the sludge is easily accumulated at the corners of the rectangular secondary sedimentation tank and the boundaries of the non-metal chain mud scraper to cause denitrification of nitrate due to oxygen deficiency, and the occurrence of the reaction is aggravated due to the presence of nitrogen oxides in the aerator, therefore, the structures of the secondary sedimentation tank and the distribution well are arranged as follows:
a distribution well structure of a secondary sedimentation tank for preventing mud deposition comprises a distribution well 100 with a middle inlet and a periphery outlet and a rectangular secondary sedimentation tank 200 with the periphery inlet and the periphery outlet connected with the distribution well through a distribution water pipeline, wherein the distribution well 100 comprises a central water inlet channel 101 with a flow stabilizing cylinder arranged in the middle, a water outlet channel 102 arranged around the central water inlet channel 101 and not communicated with each other, and a mud collecting channel 103 sleeved around the water outlet channel 102; the lower part of the central water inlet channel 101 is connected with a water outlet of sewage in the biological pond through a water inlet pipeline 104, and the upper part is connected with a mud suction device through a mud discharge pipeline 105; the water outlet channel 102 evenly distributes the sewage flowing out from the central water inlet channel 101, and the lower part of the sewage is connected with the rectangular secondary sedimentation tank through a water outlet pipeline 400; the lower part of the mud collecting channel 103 is connected with the rectangular secondary sedimentation tank through a mud returning pipeline 500, and the upper part is connected with a mud suction device through a mud suction pipeline 106; the mud suction device comprises a mud collection pipeline 107 and a central mud tank 108, the mud sucked by the mud suction pipeline 106 is collected to the central mud tank 108 from the mud collection pipeline 107, and a mud discharge pipeline 105 of the central water inlet channel 101 is connected below the central mud tank 108; the rectangular secondary sedimentation tank 200 comprises a water inlet tank 201, a water outlet tank 202, a sludge discharge tank 203 and a nonmetal chain sludge scraping device 204; the intake flume 201 is connected with the outlet conduit 400, the lower part of the sludge discharge flume 203 is connected with a plurality of groups of sludge discharge pipes 205 with holes on the pipe wall on the bottom surface of the rectangular secondary sedimentation tank through sludge discharge sleeves, and the sludge on the bottom surface of the rectangular secondary sedimentation tank 200 is scraped into the sludge discharge pipes 205 by the nonmetal chain sludge scraping device 204 and then is gathered in the sludge discharge flume 203.
Thus, sewage in the biological pond flows into the central water inlet channel 101 from the water inlet pipe 104, is evenly distributed to the water outlet channel 102, flows into the rectangular secondary sedimentation pond water inlet groove 201 through the inflow water outlet pipe 400, and then flows out through the water outlet groove 202; after sludge in the biological tank and sewage enter a rectangular secondary sedimentation tank water inlet groove 201 together, the sludge is gathered in a sludge discharge groove 203 through a non-metal chain sludge scraping device 204 and flows back to the sludge collection channel 103 through a sludge return pipeline 500, and a sludge suction device discharges the gathered sludge to a sludge discharge pipeline 105;
meanwhile, in order to solve the nitrate denitrification reaction, the utility model also comprises an aeration system which is arranged in the distribution well and the rectangular secondary sedimentation tank through an embedded aeration pipeline 300; the aeration system enters compressed air into the distribution well 100 and the rectangular secondary sedimentation tank 200 from the pre-embedded aeration pipeline 300 through an air conveying device to play an aeration role; the pre-buried aeration pipelines 300 are respectively buried in a mud collecting channel and a rectangular secondary sedimentation tank of a distribution well, and the pneumatic device respectively provides industrial gas for aeration of the mud collecting channel and nitrogen oxide removal gas for the rectangular secondary sedimentation tank through an air compressor. The pneumatic device comprises an air compressor 301, an oil-water separator 302, an industrial gas storage tank 303, an alkali liquor absorption device 304, an activated carbon adsorption device 305 and a nitrogen oxide removal gas storage tank 306; a cooler 307 is further arranged between the air compressor 301 and the oil-water separator 302 and used for reducing the temperature of compressed air generated by the air compressor; the oil-water separator 302 is connected with an industrial gas storage tank 303 through an air valve; one side of the industrial gas storage tank 303 is connected with a gas conveying device 308 for providing industrial gas for aeration of the sludge collecting channel, and the other side of the industrial gas storage tank enters a nitrogen oxide removing gas storage tank 306 through an alkali liquor absorption device 304 and an activated carbon adsorption device 305, and then is connected with a rectangular secondary sedimentation tank through the gas conveying device 308.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (5)
1. The utility model provides a two heavy pond distribution well structures of antifouling mud deposit, it advances the distribution well of week and advances the rectangle two heavy ponds of week of going out through the distribution pipe connection rather than including, its characterized in that: the aeration system is arranged in the distribution well and the rectangular secondary sedimentation tank through pre-buried aeration pipelines; the aeration system enters compressed air into the distribution well and the rectangular secondary sedimentation tank from the pre-buried aeration pipeline through the air delivery device to play an aeration role; the embedded aeration pipelines are respectively embedded in a mud collecting channel of the distribution well and a rectangular secondary sedimentation tank, and the pneumatic device respectively provides industrial gas for aeration of the mud collecting channel and nitrogen oxide removal gas for the rectangular secondary sedimentation tank through an air compressor.
2. The distribution well structure of the secondary sedimentation tank for preventing the deposition of the sludge as claimed in claim 1, wherein: the distribution well comprises a central water inlet channel, a water outlet channel and a mud collecting channel, wherein the central water inlet channel is provided with a flow stabilizing cylinder in the middle, the water outlet channel is arranged around the central water inlet channel and is not communicated with each other, and the mud collecting channel is sleeved around the water outlet channel; the lower part of the central water inlet channel is connected with a water outlet of sewage in the biological pond through a water inlet pipeline, and the upper part of the central water inlet channel is connected with a mud suction device through a mud discharge pipeline; the water outlet channel is used for evenly distributing sewage flowing out from the central water inlet channel, and the lower part of the water outlet channel is connected with the rectangular secondary sedimentation tank through a water outlet pipeline; the lower part of the mud collecting channel is connected with the rectangular secondary sedimentation tank through a mud returning pipeline, and the upper part of the mud collecting channel is connected with a mud sucking device through a mud sucking pipeline; inhale mud device and include collection mud pipeline and central mud jar, gather to central mud jar from collection mud pipeline through inhaling the mud that mud pipeline absorbs, the mud pipe way of arranging of central inlet channel is connected to the below of central mud jar.
3. The distribution well structure of the secondary sedimentation tank for preventing the deposition of the sludge as claimed in claim 2, wherein: the rectangular secondary sedimentation tank comprises a water inlet tank, a water outlet tank, a sludge discharge tank and a nonmetal chain sludge scraping device; the water inlet tank is connected with a water outlet pipeline, the lower part of the sludge discharge tank is connected with a plurality of groups of sludge discharge pipes with holes on the pipe wall of the rectangular secondary sedimentation tank bottom surface through sludge discharge sleeves, and sludge on the rectangular secondary sedimentation tank bottom surface is scraped into the sludge discharge pipes by the nonmetal chain sludge scraping device and then is gathered in the sludge discharge tank.
4. The distribution well structure of the secondary sedimentation tank for preventing the deposition of the sludge as claimed in claim 3, wherein: sewage in the biological pond flows into the central water inlet channel from the water inlet pipeline, is evenly distributed to the water outlet channel, flows into the rectangular secondary sedimentation pond water inlet groove through the inflow water outlet pipeline, and then flows out through the water outlet groove; after sludge and sewage in the biological pond enter the rectangular secondary sedimentation tank water inlet tank together, the sludge is collected in the sludge discharge tank through the nonmetal chain sludge scraping device and flows back to the sludge collecting channel through the sludge return pipeline, and the sludge suction device discharges the collected sludge into the sludge discharge pipeline.
5. The distribution well structure of the secondary sedimentation tank for preventing the deposition of the sludge as claimed in claim 1, wherein: the pneumatic device comprises an air compressor, an oil-water separator, an industrial gas storage tank, an alkali liquor absorption device, an activated carbon adsorption device and a nitrogen oxide removal gas storage tank; a cooler is arranged between the air compressor and the oil-water separator and used for reducing the temperature of compressed air generated by the air compressor; the oil-water separator is connected with an industrial gas storage tank through an air valve; one side of the industrial gas storage tank is connected with a gas conveying device and used for providing industrial gas for aeration of the sludge collecting channel, and the other side of the industrial gas storage tank enters the gas storage tank for removing nitrogen oxides through an alkali liquor absorption device and an activated carbon adsorption device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122114944.XU CN215975133U (en) | 2021-09-03 | 2021-09-03 | Two heavy pond distribution well structures of antifouling mud deposit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122114944.XU CN215975133U (en) | 2021-09-03 | 2021-09-03 | Two heavy pond distribution well structures of antifouling mud deposit |
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| Publication Number | Publication Date |
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| CN215975133U true CN215975133U (en) | 2022-03-08 |
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| CN202122114944.XU Active CN215975133U (en) | 2021-09-03 | 2021-09-03 | Two heavy pond distribution well structures of antifouling mud deposit |
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2021
- 2021-09-03 CN CN202122114944.XU patent/CN215975133U/en active Active
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