CN213012314U - Dissolved air flotation machine for wastewater treatment - Google Patents
Dissolved air flotation machine for wastewater treatment Download PDFInfo
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- CN213012314U CN213012314U CN202021341404.4U CN202021341404U CN213012314U CN 213012314 U CN213012314 U CN 213012314U CN 202021341404 U CN202021341404 U CN 202021341404U CN 213012314 U CN213012314 U CN 213012314U
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 27
- 238000009300 dissolved air flotation Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 239000002351 wastewater Substances 0.000 claims abstract description 24
- 239000000725 suspension Substances 0.000 claims abstract description 23
- 238000005345 coagulation Methods 0.000 claims abstract description 15
- 230000015271 coagulation Effects 0.000 claims abstract description 15
- 238000005189 flocculation Methods 0.000 claims abstract description 15
- 230000016615 flocculation Effects 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims description 11
- 238000007790 scraping Methods 0.000 claims description 9
- 230000001112 coagulating effect Effects 0.000 claims description 7
- 230000003311 flocculating effect Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000029219 regulation of pH Effects 0.000 abstract 4
- 238000012423 maintenance Methods 0.000 description 7
- 239000010865 sewage Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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Abstract
The utility model relates to the field of environmental protection equipment, in particular to a dissolved air flotation machine for wastewater treatment, which comprises a water inlet, a dissolved air flotation machine box body, a water outlet and a dissolved air device, wherein a reaction area, a suspension area and a clear water area are respectively arranged in the dissolved air flotation machine box body according to the water flow direction in the wastewater treatment process, the reaction area further comprises a PH regulation area, a coagulation area and a flocculation area according to the water flow direction, the PH regulation area, the coagulation area and the flocculation area are separated by a partition plate, an outlet for unidirectional circulation of wastewater is arranged in the partition plate, dosing devices are respectively arranged in the PH regulation area, the coagulation area and the flocculation area, and the water inlet is connected with the PH regulation area; the utility model discloses it is small, dissolve gas efficient, compact structure to equipment area is little, and the impurity clearance in the waste water is high.
Description
Technical Field
The utility model relates to an environmental protection equipment field especially relates to an equipment for waste water treatment.
Background
The dissolved air flotation machine is a solid-liquid separation device commonly used in the sewage treatment industry, can effectively remove suspended matters, grease and glue substances in sewage, and is a main device for sewage pretreatment. The dissolved gas tank generates dissolved gas water, and the dissolved gas water is decompressed and released into the water to be treated through the releaser. The air dissolved in the water is released from the water to form micro fine bubbles of 20-40um, and the micro bubbles are combined with suspended matters in the sewage to ensure that the specific gravity of the suspended matters is smaller than that of the water and gradually float to the water surface to form scum. A scraper system is arranged on the water surface to scrape the scum into a sludge pool. The clean water enters the clean water tank from the lower part through the overflow groove. The dissolved air flotation machine has the advantages of easy control of operation procedures, easy control of water quality and water quantity, and simple management, and is widely applied to water supply and drainage and wastewater treatment. However, the existing dissolved air flotation machine has the problems of large occupied area of equipment, high maintenance cost, inconvenience in installation and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to remedy prior art's defect, provide a waste water treatment is with dissolving gas air supporting machine to it is big to solve equipment area, and the maintenance cost is high, installs inconvenient problem.
Specifically, the technical scheme of the utility model is that:
a dissolved air flotation machine for wastewater treatment comprises a water inlet, a dissolved air flotation machine box body, a water outlet and a dissolved air device; the dissolved air flotation machine is characterized in that a reaction zone, a suspension zone and a clear water zone are respectively arranged in the box body according to the water flow direction in the wastewater treatment process, the reaction zone further comprises a PH adjusting zone, a coagulation zone and a flocculation zone according to the water flow direction, the PH adjusting zone, the coagulation zone and the flocculation zone are separated by partition plates, outlets for unidirectional circulation of wastewater are respectively arranged in the partition plates, and the water inlet is connected with the PH adjusting zone; the bottom of the suspension zone is provided with a reservoir, and the top of the suspension zone is provided with a slag scraping system and a slag floating groove; the clean water area is a closed small reservoir, one side of the clean water area is communicated with the suspension area through a clean water collecting pipe, and the other side of the clean water area is connected with the water outlet; dissolve gas device and include one dissolve air pump, one dissolve gas pitcher and a dissolved gas pipeline, dissolve the air pump with clear water district passes through the dissolved gas pipeline links to each other, dissolve the gas pitcher install in being close to dissolve gas air supporting machine box outside, one side through dissolve the gas pipeline with it links to each other to dissolve the air pump, the opposite side passes through dissolve the gas pipeline connect in it is inside to suspend the district, just it is equipped with one and dissolves gas water release in gas pipeline exit for the release process dissolve the gas water that dissolves after the gas pitcher pressurization, make the inside production microbubble that suspends the district, pass through waste water produced after the reaction zone adsorb the flocculent colloid that has impurity and take to the surface of water.
Further, the PH adjusting area, the coagulating area and the flocculating area are all provided with dosing barrels, and the dosing barrels are all connected with metering pumps and used for controlling the dose of the chemicals fed into the reaction by the dosing barrels.
Further, the first PH adjusting area, the coagulating area and the flocculating area are all internally provided with stirring devices.
Further, the stirring device is an impeller capable of adjusting the rotating speed.
Furthermore, a guide plate is arranged in the suspension area.
Further, the slag scraping system comprises a belt pulley, a chain and a scraping plate.
Furthermore, overflow weirs are arranged on two sides of the water outlet of the clear water collecting pipe.
Furthermore, a filter plate is arranged in the clear water area.
The beneficial effects of the utility model are that the utility model discloses wastewater treatment is with dissolving gas air supporting machine box one end is through setting up a multichannel baffle and separating out a PH regulatory region, a district and flocculation district thoughtlessly congeal, has realized coagulating air supporting integration, need not again wastewater treatment is with dissolving gas air supporting machine outside and setting up equipment that congeals, effectively reduces equipment area, reduces maintenance cost and simple to operate. And the PH adjusting area, the coagulation area and the water outlet between the flocculation areas do not need pumping, and the wastewater can directly flow to the next area for treatment without installing a water pump and a connecting pipeline, thereby further reducing the floor area of the equipment and lowering the maintenance cost.
Drawings
Fig. 1 is a schematic structural view of a dissolved air flotation machine for wastewater treatment according to a first embodiment.
In the figure: 1 water inlet, 2PH regulatory region, 3 coagulation district, 4 flocculation district, 5 suspension district, 6 clear water districts, 7 slag scraping systems, 8 scum grooves, 9 delivery ports, 10 dissolved air pump, 11 dissolved air tanks, 12 explosive charging barrel, 13 metering pumps, 14 agitating unit, 15 clear water collecting pipe, 16 filter, dissolved air water release 17.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the embodiment provides a dissolved air flotation machine for wastewater treatment, which includes a water inlet 1, a dissolved air flotation machine box, a water outlet 9, and a dissolved air device; a reaction zone, a suspension zone 5 and a clear water zone 6 are respectively arranged in the dissolved air flotation machine box body according to the water flow direction in the wastewater treatment process, the reaction zone further comprises a PH adjusting zone 2, a coagulation zone 3 and a flocculation zone 4 according to the water flow direction, the PH adjusting zone 2, the coagulation zone 3 and the flocculation zone 4 are separated by partition plates, outlets for unidirectional circulation of wastewater are respectively arranged in the partition plates, and the water inlet 1 is connected with the PH adjusting zone 2; the bottom of the suspension zone 5 is provided with a reservoir, and the top of the suspension zone 5 is provided with a slag scraping system 7 and a slag floating groove 8; the clean water area 6 is a closed small reservoir, one side of the clean water area 6 is communicated with the suspension area 5 through a clean water collecting pipe 15, and the other side of the clean water area is connected with the water outlet 9; dissolve the gas device and include a dissolved air pump 10, one dissolve gas pitcher 11 and a dissolved air pipeline, dissolved air pump 10 with clear water district 6 passes through the dissolved air pipeline links to each other, dissolved air pitcher 10 install in dissolve gas air supporting machine box outside, one side is passed through the dissolved air pipeline with dissolved air pump 10 links to each other, and the opposite side passes through dissolved air pipeline connect in 5 insides in the suspension district, just dissolved air pipeline exit department is equipped with one and dissolves gas water release 17, through such arrangement, this embodiment has realized coagulating air supporting integration, consequently need not again waste water treatment is with dissolving gas air supporting machine outside and setting up coagulation equipment, effectively reduces equipment area, reduces maintenance cost and simple to operate. Moreover, PH regulatory region 2 thoughtlessly congeal district 3 with go out water between the flocculation area 4 and need not the pump sending, waste water can directly flow to next district by oneself and handle, need not install water pump and connecting tube, further reduces equipment area, reduces the maintenance cost.
In this embodiment, the wastewater enters the PH adjusting area 2 from the water inlet 1, and the PH of the wastewater is adjusted to 8.5 by adding an alkaline neutralizing agent, so that the subsequent coagulation treatment achieves the best effect. Then, the wastewater enters the coagulation zone 3, ions in the wastewater can be converted into colloids by adding an inorganic high-molecular coagulant and an oxidant, colloidal microparticles in the wastewater are mutually bonded and aggregated, so that the inorganic high-molecular coagulant is combined with dissolved pollutants in the wastewater to form fine flowers, impurities which are difficult to be brought out by bubbles in the wastewater are removed, organic macromolecules in the impurities are subjected to chain scission degradation, then, the wastewater enters the flocculation zone 4, the non-ionic high-molecular flocculant is combined with the fine flowers formed in the coagulation zone 3 to form large-volume flowers by adding the non-ionic high-molecular flocculant and the oxidant, and the removal effect on the impurities is further improved. After the medicine is added, the PH adjusting zone 2, the coagulating zone 3 and the stirring device 14 in the flocculating zone 4 start to work, so that the reaction is more sufficient. Further, the air dissolving device comprises an air dissolving pump 10, an air dissolving tank 11 and an air dissolving pipeline, and the air dissolving pipeline is sequentially connected with the clear water area 6, the air dissolving pump 10, the air dissolving tank 11 and the suspension area 5. Clear water in clear water district 6 passes through the dissolved air pipeline and gets into dissolved air pump 10, dissolved air pump 10 makes it become dissolved air water for the inside gas that fills of clear water, and then, dissolved air water gets into dissolved air tank 11, dissolved air tank 11 lets the dissolved air water that dissolved air pump provided at jar intensive mixing pressurization, passes through the dissolved air water after the pressurization again dissolved air water release 17 drops into the suspension district makes the dissolved air water after the pressurization that gets into the suspension district release a large amount of microbubble because pressure reduces. After the wastewater enters the suspension zone 5 from the flocculation zone 4, micro bubbles can meet large-volume flowers which are already condensed in the wastewater in the rising process, and then the micro bubbles can be attached to the large-volume flowers to enable the large-volume flowers to quickly float upwards, and the flowers can continuously adsorb impurities around in the floating process. Then, the impurities move to the slag scraping system 7 through the guide plate, a belt pulley in the slag scraping system 7 in the suspension zone 5 drives a scraper on a chain to scrape all the impurities floating on the water surface into the slag floating groove 8, the wastewater subjected to air floatation treatment flows into the clear water zone 6 from overflow weirs at two sides through the clear water collecting pipe 15, the clear water zone 6 is also internally provided with the filter plate 16, and the filter plate 16 can effectively filter the impurities with high density and relatively large volume, such as gravel and the like, in the wastewater which is not treated in the air floatation process. Finally, the treated clean water leaves the dissolved air floatation machine from the water outlet 9.
The utility model discloses can turn into the ion in the waste water and numerous flower-shaped colloid gets rid of, and the redox reaction takes place for the [ H ] that newly produces and [ O ] can and many components in the waste water in the reaction sequence, and the effect is subsided in the increase, improves waste water treatment ability, and the setting of filter can effectively filter the waste water medium-high density that the air supporting in-process was not handled and the relatively great impurity of volume, like gravel etc. further improves waste water treatment ability. More preferably, the utility model discloses area is little, and the maintenance cost is low, and simple to operate is applicable to multiple type waste water treatment.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (8)
1. A dissolved air flotation machine for wastewater treatment comprises a water inlet, a dissolved air flotation machine box body, a water outlet and a dissolved air device; the dissolved air flotation device is characterized in that a reaction zone, a suspension zone and a clear water zone are respectively arranged in the dissolved air flotation machine box body according to the water flow direction in the wastewater treatment process, the reaction zone further comprises a PH adjusting zone, a coagulation zone and a flocculation zone according to the water flow direction, the PH adjusting zone, the coagulation zone and the flocculation zone are separated by partition plates, outlets for unidirectional circulation of wastewater are respectively arranged in the partition plates, and the water inlet is connected with the PH adjusting zone; the bottom of the suspension zone is provided with a reservoir, and the top of the suspension zone is provided with a slag scraping system and a slag floating groove; the clean water area is a closed small reservoir, one side of the clean water area is communicated with the suspension area through a clean water collecting pipe, and the other side of the clean water area is connected with the water outlet; dissolve gas device and include one dissolve air pump, one dissolve gas pitcher and a dissolved gas pipeline, dissolve the air pump with clear water district passes through the dissolved gas pipeline links to each other, dissolve the gas pitcher install in being close to dissolve gas air supporting machine box outside, one side through dissolve the gas pipeline with dissolve the air pump and link to each other, the opposite side through dissolve the gas pipeline connect in the suspension district is inside, just it is equipped with one and dissolves gas water release, is used for the release process dissolve the gas water that dissolves after the gas pitcher pressurization, make the inside production microbubble that suspends the district, pass through waste water produced after the reaction zone adsorb the flocculent colloid that has impurity and take to the surface of water.
2. The dissolved air flotation machine for wastewater treatment as set forth in claim 1, wherein the PH adjusting zone, the coagulating zone and the flocculating zone are provided with dosing tanks, and the dosing tanks are connected with metering pumps for controlling the dosage of chemicals for reaction in the dosing tanks.
3. The dissolved air flotation machine for wastewater treatment as set forth in claim 1, wherein stirring devices are disposed in the first pH adjusting zone, the coagulating zone and the flocculating zone.
4. The dissolved air flotation machine for wastewater treatment as set forth in claim 3, wherein the stirring device is an impeller capable of adjusting a rotation speed.
5. The dissolved air flotation machine for wastewater treatment as set forth in claim 1, wherein a guide plate is further disposed in the suspension zone.
6. The dissolved air flotation machine for wastewater treatment as set forth in claim 1, wherein the residue scraping system comprises a belt pulley, a chain and a scraper.
7. The dissolved air flotation machine for wastewater treatment as set forth in claim 1, wherein overflow weirs are disposed on both sides of the water outlet of the clean water collection pipe.
8. The dissolved air flotation machine for wastewater treatment as set forth in claim 1, wherein a filter plate is further disposed in the clean water zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021341404.4U CN213012314U (en) | 2020-07-09 | 2020-07-09 | Dissolved air flotation machine for wastewater treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021341404.4U CN213012314U (en) | 2020-07-09 | 2020-07-09 | Dissolved air flotation machine for wastewater treatment |
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| CN213012314U true CN213012314U (en) | 2021-04-20 |
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| CN202021341404.4U Active CN213012314U (en) | 2020-07-09 | 2020-07-09 | Dissolved air flotation machine for wastewater treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118771566A (en) * | 2024-08-16 | 2024-10-15 | 安徽信息工程学院 | A high-efficiency flocculation dissolved air flotation machine |
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- 2020-07-09 CN CN202021341404.4U patent/CN213012314U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118771566A (en) * | 2024-08-16 | 2024-10-15 | 安徽信息工程学院 | A high-efficiency flocculation dissolved air flotation machine |
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