CN2786096Y - Dissolved-air floatation unit - Google Patents
Dissolved-air floatation unit Download PDFInfo
- Publication number
- CN2786096Y CN2786096Y CN 200520009031 CN200520009031U CN2786096Y CN 2786096 Y CN2786096 Y CN 2786096Y CN 200520009031 CN200520009031 CN 200520009031 CN 200520009031 U CN200520009031 U CN 200520009031U CN 2786096 Y CN2786096 Y CN 2786096Y
- Authority
- CN
- China
- Prior art keywords
- air
- water
- flotation
- water inlet
- dissolved air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 170
- 238000005188 flotation Methods 0.000 claims description 55
- 238000009300 dissolved air flotation Methods 0.000 claims description 33
- 238000007667 floating Methods 0.000 claims description 13
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 11
- 239000010865 sewage Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model relates to a dissolved-air floatation device, which comprises at least an air floatation reaction chamber, a raw water inlet and a dissolved-air water inlet which are communicated with the air floatation reaction chamber, wherein the raw water inlet is arranged on the upper part of the air floatation reaction chamber, and the dissolved-air water inlet is arranged on the lower part of the air floatation reaction chamber. By using the dissolved-air floatation device of the utility model, the contact time of microbubbles and suspended substance in the process of air floatation can be increased, thereby, the atmospheric air floatation separated speed is increased and the water outlet quality of the air floatation device is increased.
Description
Technical field
The utility model relates to a kind of waste water control equipment, is a kind of journey dissolved air flotation device that efficiently increases specifically.
Background technology
Air-floating apparatus is to adopt the air supporting method to carry out the device of solid-liquid or liquid-liquid separation, it mainly is by producing a large amount of microbubbles, the solid or the liquid impurity particulate that make density in itself and the water approach water adhere to, form the air float body of density less than water, form scum silica frost at the buoyancy function float downward to the water surface, thereby realize solid-liquid or liquid-liquid separation.This kind air-floating apparatus can be used for carrying out water treatment, and it is very effective to oils, fiber, suspended solids, algae, active sludge or microbial film etc. that separation proportion is similar to water.
Existing air-floating apparatus is according to the difference that produces the microbubble mode, mainly is divided into electrofloatation device, loose three kinds in air flotation device and pressurized dissolved air flotation device, and pressurized dissolved air flotation device wherein becomes air-floating apparatus commonly used at present because of series of advantages.Its principal feature is that the air dissolves degree in (1) water is big, and enough microbubbles can be provided, and can satisfy the different solid-liquids that require and separate, and guarantees removal effect; (2) discharge the bubble diameter little (10-150um) of back generation through decompression, particle diameter is even, and microbubble lift velocity in air flotation pool is very slow, and is less to pond water disturbance, be specially adapted to loose, the tiny solids constituent of flco from.
This dissolved air flotation device generally is that former water inlet and dissolved air water inlet are set in the air flotation pool bottom, in air flotation pool, the pressure air-dissolving water that enters air flotation pool from the dissolved air water inlet is depressurized to a normal atmosphere and produces microbubble from pressurized state, this microbubble carries out flowing of equidirectional with the upwards former water of mobile that enters from former water inlet, the suspended substance that rises in this former water contacts in the same way with the bubble of rising, make the adhesion of bubble and suspended substance, become the particle that certain speed is arranged, particle by on float to the surface and blow off by slag scraper, thereby finish removing to suspended substance in the former water.
But find that in actual use after former hydromining was handled with existing above-mentioned dissolved air flotation device, impurity such as the oil in the water, fiber were still very high.Its major cause is: in above-mentioned dissolved air flotation device, the dissolved air water that former water and being used to produces bubble all is that the bottom from air flotation pool enters air flotation pool, microbubble contacts in uphill process with suspended substance in the former water, the duration of contact of microbubble and suspended substance is shorter, cause the bubble adhesion effect poor, a part can not can be produced precipitation by the suspended substance that bubble adheres to, and perhaps is trapped in the water, along with water outlet is flowed out, reduced the effluent quality of air-floating apparatus.For these reasons, the oil removal rate of existing air-floating apparatus generally can only reach about 80%.
Therefore, be necessary to provide a kind of novel dissolved air flotation device, overcome the above-mentioned defective of existing dissolved air flotation device.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of dissolved air flotation device is provided, the duration of contact of microbubble and suspended substance in the increase air supporting process, thus increase the speed of dissolved air flotation, improve the effluent quality of air-floating apparatus.
Above-mentioned technical problem of the present utility model, can adopt following technical scheme to solve, a kind of dissolved air flotation device, at least include air-flotation reactor and the former water inlet that is communicated in air-flotation reactor, dissolved air water inlet, described former water inlet is arranged at the top of described air-flotation reactor, and the dissolved air water inlet is arranged at the bottom of described air-flotation reactor.Like this, in air-flotation reactor, former water flows downward and dissolved air water generation microbubble from bottom to top, make that former water and microbubble are reverse to be contacted, the collision that flco in microbubble and the former water can carry out repeatedly adheres to, and has effectively prolonged duration of contact, has improved the dissolved air flotation effect.
Preferably, described former water inlet can be arranged at the top of described air-flotation reactor.
Preferably, described dissolved air water inlet can be arranged at the bottom of described air-flotation reactor.
Further, can between the former water inlet of described air-flotation reactor and dissolved air water inlet, be provided with one or more choked flow element, hinder flowing of former water and dissolved air water, thereby increase the duration of contact of the microbubble of former water and dissolved air water generation, improve separating effect.
Described choked flow element can be two or more than two spoiler, and it is arranged at air-flotation reactor's opposing sidewalls respectively, and is crisscross arranged from relative extension of this opposing sidewalls.
Dissolved air flotation device of the present utility model includes an air flotation pool, be provided with the overflow weir that highly is lower than the air flotation pool height in this air flotation pool, this air flotation pool is separated by overflow weir, form described air-flotation reactor in overflow weir one side, and form a sump in the opposite side of overflow weir, this sump bottom is provided with waste pipe, and this waste pipe is connected in sewage lagoon by sump pump, thereby can be discharged in the sewage lagoon by the sewage of sump pump with sump.
Former water inlet of the present utility model can be connected in a Yuan Shui water source by former water inlet pipe, and string is provided with raw water pump on this former water inlet pipe, on the pipeline between described Yuan Shui water source and the raw water pump and be connected to the flocculation agent volume pump that is used to measure and drop into flocculation agent.
In the utility model, the air-flotation reactor bottom also can be provided with the product water out, and this product water out is connected in clean water basin by a water producing pipe, and string is provided with one and produces water pump on this water producing pipe, is used for the clear water that air-flotation reactor produces is drawn.
Dissolved air water inlet of the present utility model can be connected in the water source by a dissolved air water transfer lime, and string is provided with air-water mixing pump on this dissolved air water transfer lime, is serially connected with knockout drum between described air-water mixing pump and dissolved air water inlet.Like this, the utility model can utilize the adjusting container effect of the agitating function and the knockout drum of air-water mixing pump, the air that will be difficult to be dissolved in the water mixes fully and dissolves, carry out force feed simultaneously, shortened stirring technique greatly, simple in structure, the dissolved efficiency height, than operation and the control easily of traditional device, can obviously increase dissolved air flotation speed and improve effluent quality.
The inlet end of above-mentioned air-water mixing pump can be directly connected in described water producing pipe, constitutes the described water source that forms dissolved air water by the water in this water producing pipe, forms the recycle to the water after the air-floating apparatus processing.
Only lift the battery of tests data below, the effect of utilizing said structure of the present utility model once is described.
Through experiment, at pressure air-dissolving water 0.54Mpa, the mistake pumping capacity of intake pump is 600L/H, the mistake pumping capacity of producing water pump is 1400L/H, the mistake pumping capacity of air-water mixing pump is 800L/H, flocculant addition is under the situation of 50ppm, and after dissolved air flotation device of the present utility model was handled, the water outlet in the water producing pipe contained oil index and is:
| Water sample | Oleaginousness (ppm) | Oil removal rate (%) |
| Former water | 101 | -- |
| Water outlet | 4.35 | 95.69 |
By above experimental data as can be known, the water outlet oil removal rate of air-floating apparatus of the present utility model is higher than the oil removal rate of existing dissolved air flotation device far away up to more than 95%, has improved the effluent characteristics of air-floating apparatus greatly.
Description of drawings
Fig. 1 dissolved air flotation device structural representation of the present utility model;
Fig. 2 air flotation pool structural representation of the present utility model.
Embodiment
As shown in Figure 1 and Figure 2, dissolved air flotation device of the present utility model, at least include air-flotation reactor 11 and the former water inlet 12 that is communicated in air-flotation reactor 11, dissolved air water inlet 13, described former water inlet 12 is arranged at the top of described air-flotation reactor 11, and dissolved air water inlet 13 is arranged at the bottom of described air-flotation reactor 11.Like this, in air-flotation reactor 11, the former water that enters from former water inlet 12 from up to down flows, and the microbubble from bottom to top that after release, produces from dissolved air water inlet 13 dissolved air waters that enter, former water and microbubble are reverse to be contacted thereby make, and the collision that the flco in microbubble and the former water can carry out repeatedly adheres to, and has effectively prolonged duration of contact, improved the dissolved air flotation effect, the water outlet oil removal rate that makes air-floating apparatus is up to more than 95%.
As specific embodiment, as shown in Figure 2, described former water inlet 12 can be preferably disposed on the top of described air-flotation reactor 11, and described dissolved air water inlet 13 can be preferably disposed on the bottom of described air-flotation reactor 11, thereby increase the countercurrent flow of former water and microbubble, increase their duration of contact, improve the dissolved air flotation effect.
As shown in Figure 1 and Figure 2, can be further between the former water inlet 12 of described air-flotation reactor 11 and dissolved air water inlet 13, be provided with one or more choked flow element 14, hinder flowing of former water and dissolved air water, thereby further increase the duration of contact of the microbubble of former water and dissolved air water generation, improve separating effect.
As shown in Figure 2, described choked flow element 14 can be two or more than two spoiler, and it is arranged at air-flotation reactor's 11 opposing sidewalls respectively, and relatively extends from this opposing sidewalls and to be crisscross arranged, so that the former water of mobile is from up to down played choked flow effect preferably.
As shown in Figure 1 and Figure 2, dissolved air flotation device of the present utility model can include an air flotation pool 10, be provided with the overflow weir 15 that highly is lower than the air flotation pool height in this air flotation pool 10, this air flotation pool 10 is separated by overflow weir 15, form described air-flotation reactor 11 in overflow weir 15 1 sides, and form a sump 16 in the opposite side of overflow weir 15.Like this, in air-flotation reactor 11, after for some time reaction, the impurity in the former water with bubble through the water column formation sewage layer on the water surface after microbubble combines.After the sewage lamination was gathered to a certain degree, the overflow weir 15 that unnecessary sewage overflow and highly is lower than air flotation pool 10 was pooled in the sump 16.As shown in Figure 1, these sump 16 bottoms can be provided with waste pipe 20, and this waste pipe 20 is connected in sewage lagoon 22 by sump pump 21, thereby can the sewage in the sump 16 be discharged in the sewage lagoon 22 by sump pump 21.
As shown in Figure 1, former water inlet 11 of the present utility model can be connected in Yuan Shui water source 31 by former water inlet pipe 30, be provided with raw water pump 32 in this former water inlet pipe 30, on the pipeline between described Yuan Shui water source 31 and the raw water pump 32 and be connected to the flocculation agent volume pump 33 that is used to measure and drop into flocculation agent.In the present embodiment, this Yuan Shui water source 31 is a former pond.
As shown in Figure 1, air-flotation reactor of the present utility model 11 bottoms also are provided with produces water out 17, this product water out 17 is connected in clean water basin 41 by water producing pipe 40, and string is provided with and produces water pump 42 on this water producing pipe 40, is used for the clear water that air-flotation reactor 11 produces is drawn out in the clean water basin 41.
As shown in Figure 1, dissolved air water inlet 13 can be connected in the water source by a dissolved air water transfer lime 50, and string is provided with air-water mixing pump 51 on this dissolved air water transfer lime 50, and is serially connected with knockout drum 52 between described air-water mixing pump 51 and dissolved air water inlet 13.Like this, water in the water source mixes with air through air-water mixing pump, and can utilize the adjusting container effect of the agitating function and the knockout drum of air-water mixing pump, the air that will be difficult to be dissolved in the water mixes fully and dissolves, and carries out force feed simultaneously, has shortened stirring technique greatly, simple in structure, the dissolved efficiency height than operation and the control easily of traditional device, can obviously increase dissolved air flotation speed and improve effluent quality.
Further, in the utility model, as shown in Figure 1, the inlet end of air-water mixing pump 51 can be connected in described water producing pipe 40, constitutes the described water source that forms dissolved air water by the water in this water producing pipe 40, forms the recycle to the clear water after the air-floating apparatus processing.
Claims (10)
1, a kind of dissolved air flotation device, at least include air-flotation reactor and the former water inlet that is communicated in air-flotation reactor, dissolved air water inlet, it is characterized in that described former water inlet is arranged at the top of described air-flotation reactor, and the dissolved air water inlet is arranged at the bottom of described air-flotation reactor.
2, dissolved air flotation device as claimed in claim 1 is characterized in that, described former water inlet is arranged at the top of described air-flotation reactor.
3, dissolved air flotation device as claimed in claim 1 is characterized in that, described dissolved air water inlet is arranged at the bottom of described air-flotation reactor.
4, dissolved air flotation device as claimed in claim 1 is characterized in that, is provided with one or more choked flow element between the former water inlet of described air-flotation reactor and dissolved air water inlet.
5, dissolved air flotation device as claimed in claim 4 is characterized in that, described choked flow element can be two or more than two spoiler, and it is arranged at the opposing sidewalls of air-flotation reactor respectively, and is crisscross arranged from relative extension of this opposing sidewalls.
6, dissolved air flotation device as claimed in claim 1, it is characterized in that, this air-floating apparatus includes an air flotation pool, be provided with the overflow weir that highly is lower than the air flotation pool height in this air flotation pool, form described air-flotation reactor in overflow weir one side, and forming a sump in the opposite side of overflow weir, the bottom of this sump is provided with the waste pipe that is used for effluent sewerage.
7, dissolved air flotation device as claimed in claim 1, it is characterized in that, described former water inlet is connected in a Yuan Shui water source by former water inlet pipe, string is provided with raw water pump on this former water inlet pipe, on the pipeline between described Yuan Shui water source and the raw water pump and be connected to the flocculation agent volume pump that is used to measure and drop into flocculation agent.
8, dissolved air flotation device as claimed in claim 1 is characterized in that, described air-flotation reactor bottom also is provided with the product water out, and this product water out is connected in clean water basin by a water producing pipe, and string is provided with one and produces water pump on this water producing pipe.
9, dissolved air flotation device as claimed in claim 1, it is characterized in that, described dissolved air water inlet is connected in the water source by a dissolved air water transfer lime, and string is provided with air-water mixing pump on this dissolved air water transfer lime, is serially connected with knockout drum between described air-water mixing pump and dissolved air water inlet.
10, dissolved air flotation device as claimed in claim 9 is characterized in that, the inlet end of described air-water mixing pump is connected in described water producing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009031 CN2786096Y (en) | 2005-03-24 | 2005-03-24 | Dissolved-air floatation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009031 CN2786096Y (en) | 2005-03-24 | 2005-03-24 | Dissolved-air floatation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786096Y true CN2786096Y (en) | 2006-06-07 |
Family
ID=36774671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009031 Expired - Lifetime CN2786096Y (en) | 2005-03-24 | 2005-03-24 | Dissolved-air floatation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786096Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844823A (en) * | 2010-06-23 | 2010-09-29 | 大连交通大学 | Co-coagulation air-bearing water purification device |
| CN101955241A (en) * | 2010-10-11 | 2011-01-26 | 无锡鼎天环保设备有限公司 | Intermittent type air-floating system |
| CN102826623A (en) * | 2012-09-21 | 2012-12-19 | 中国石油化工股份有限公司 | Air floating device |
| CN104891616A (en) * | 2015-05-28 | 2015-09-09 | 中国石油化工股份有限公司 | Oily wastewater purification method and system |
| CN110844962A (en) * | 2020-01-16 | 2020-02-28 | 山东华通环境科技股份有限公司 | Miniature air flotation device |
-
2005
- 2005-03-24 CN CN 200520009031 patent/CN2786096Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844823A (en) * | 2010-06-23 | 2010-09-29 | 大连交通大学 | Co-coagulation air-bearing water purification device |
| CN101955241A (en) * | 2010-10-11 | 2011-01-26 | 无锡鼎天环保设备有限公司 | Intermittent type air-floating system |
| CN102826623A (en) * | 2012-09-21 | 2012-12-19 | 中国石油化工股份有限公司 | Air floating device |
| CN104891616A (en) * | 2015-05-28 | 2015-09-09 | 中国石油化工股份有限公司 | Oily wastewater purification method and system |
| CN110844962A (en) * | 2020-01-16 | 2020-02-28 | 山东华通环境科技股份有限公司 | Miniature air flotation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102642884B (en) | Oil-contained sewage treatment method and eddy energy fast-cyclone separating system of special equipment for method | |
| CN1317200C (en) | A vertical flow automatic oil separation and sedimentation device | |
| CN201334406Y (en) | Integrated water treatment device for surface water and sewage treatment | |
| CN1057281C (en) | High-effect anaerobic treatment device for waste water and method thereof | |
| CN103011402A (en) | Double-circulation anaerobic reactor | |
| CN101391824A (en) | Oilfield produced sewage coalescing floating sinking treatment device | |
| CN108101203B (en) | Reaction-precipitation integrated deepwater aeration tower and treatment process thereof | |
| CN2786096Y (en) | Dissolved-air floatation unit | |
| CN1124984C (en) | Counter-current air floating water-treating method and apparatus | |
| CN220334853U (en) | Improved generation air supporting equipment | |
| CN2546433Y (en) | Spiral-flow clearing air-float pool | |
| CN205367946U (en) | Air supporting filtering device | |
| CN206607098U (en) | One kind cleaning HDPE reclaimed materials sewage disposal systems | |
| CN218231939U (en) | A vertical air flotation device | |
| CN212198930U (en) | Surface treatment wastewater treatment equipment | |
| CN202379822U (en) | Two-stage air flotation device | |
| CN209010319U (en) | A kind of purification of waste water device | |
| CN201529492U (en) | Membrane component sealing head | |
| CN222700147U (en) | High-efficient clarification water purification system equipment | |
| KR20020068311A (en) | Apparatus for clarifying water and wastewater | |
| CN208485712U (en) | A new type of water treatment equipment | |
| CN207483477U (en) | A kind of air-floating apparatus of high-efficient purification sewage | |
| CN207362009U (en) | The special equipment of kitchen biogas liquor treating process | |
| CN221166194U (en) | Floating and sinking dual-purpose water purifier | |
| CN214936479U (en) | Novel atmospheric and vacuum electro-desalting sewage deep oil-water separation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BLUE STAR CLEANING ENGINEERING CO., LTD. Free format text: FORMER NAME OR ADDRESS: ZHONGLAN MEMBRANE TECHNOLOGY CO., LTD. Owner name: BLUESTAR ENVIRONMENTAL ENGINEERING CO., LTD. Free format text: FORMER NAME OR ADDRESS: BLUE STAR CLEANING ENGINEERING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 5, serenity Road, B District, Beijing Airport Industrial Zone, 101300 Patentee after: Bluestar Environment Engineering Co.,Ltd. Address before: No. 5, serenity Road, B District, Beijing Airport Industrial Zone, 101300 Patentee before: Blue Star Cleaning Engineering Co.,Ltd. Address after: No. 5, serenity Road, B District, Beijing Airport Industrial Zone, 101300 Patentee after: Blue Star Cleaning Engineering Co.,Ltd. Address before: No. 5, serenity Road, B District, Beijing Airport Industrial Zone, 101300 Patentee before: Zhonglan Membrane Technology Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150324 Granted publication date: 20060607 |