CN101928082A - Vertical-flow air flotation device with secondary filtering - Google Patents
Vertical-flow air flotation device with secondary filtering Download PDFInfo
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- CN101928082A CN101928082A CN2010102835110A CN201010283511A CN101928082A CN 101928082 A CN101928082 A CN 101928082A CN 2010102835110 A CN2010102835110 A CN 2010102835110A CN 201010283511 A CN201010283511 A CN 201010283511A CN 101928082 A CN101928082 A CN 101928082A
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Abstract
The invention discloses a vertical-flow air flotation device with secondary filtering, which comprises an air flotation barrel (8). A reaction barrel (9) is arranged in the air flotation barrel (8), a releaser (5) is installed at the bottom of the reaction barrel (9) and connected with a dissolved gas cylinder, a water outlet of a water inlet pipe (1) extends into the reaction barrel (9), a water inlet of the water inlet pipe (1) extends out of the reaction barrel (9) and is connected with a water supply pipe, and the water inlet of the water inlet pipe (1) is provided with a dosing device. The vertical-flow air flotation device with secondary filtering is characterized in that a perforated plate (10) is arranged at the lower part of the air flotation barrel (8) and around the reaction barrel (9), every hole on the perforated plate (1) is provided with a discharge cap (11), a filtering layer (7) is arranged on the perforated plate (10), a drain outlet (6) for sewage drainage and back wash is installed at the lower part of the air floatation barrel (8), the water inlet end of a water outlet pipe (4) extents to the lower part of the filtering layer (7), and the water outlet end of the water outlet pipe (4) extents out of the air floatation barrel (8). The invention has the advantages of simple structure and good processed water quality.
Description
Technical field
The present invention relates to a kind of water treating equipment, especially a kind of vertical-flow air flotation device, specifically a kind of vertical-flow air flotation device that has secondary filtration.
Background technology
As everyone knows, the air-flotation type water treating equipment are equipment commonly used in all kinds of water technologies, and as shown in Figure 1, it is comparatively desirable for the purification of water quality of suspended substance proportion about 1.
The air-float water treatment facility mainly is by pressure water and pressure air, thorough mixing in molten cylinder, suddenly decompression discharges again, in air-flotation reactor, discharge countless tiny bubbles, bubble can be adsorbed in uphill process on suspended substance or the oils, make it volume and increase and float, regularly remove by slag scraper, all the other relatively water of cleaning collect by the collecting chamber bottom.
Improve the suspended substance removal effect in order to rise to; usually also need when water inlet, add medicament (flocculation agent) and form alumen ustum; air supporting relies on bubble absorption to reach the purpose that purifies water; but there are a large amount of bubbles to vanish voluntarily mobile the reaching in bubble rising, the stop process of water inlet; therefore having a lot of proportions to be a bit larger tham 1 suspended substance can descend gradually because of bubble-break; form secondary settlement; influence effluent quality; this problem has restricted the performance of airfloat equipment usefulness; thereby airfloat equipment is commonly used for pre-treatment or middle-chain at present domestic, and non-terminal equipment.
Summary of the invention
The objective of the invention is can be because bubble breaks and causes proportion to be slightly larger than 1 suspended substance realizing secondary settlement in the bubble uphill process at existing vertical-flow air flotation device, influence the problem of effluent characteristics, design a kind of vertical-flow air flotation device that has secondary filtration.
Technical scheme of the present invention is:
A kind of vertical-flow air flotation device that has secondary filtration, it comprises air supporting tube 8, be provided with reaction tube 9 in the air supporting tube 8, the bottom of reaction tube 9 is equipped with reliever 5, reliever 5 links to each other with molten cylinder, the water outlet of water inlet pipe 1 stretches in the reaction tube 9, the water-in of water inlet pipe 1 stretches out reaction tube 9 and links to each other with water-supply pipe, on the water-in of water inlet pipe 1, chemicals dosing plant is installed, it is characterized in that described air supporting tube 8 bottom, reaction tube 9 around porous plate 10 is installed, drain cap 11 is installed on the hole of porous plate 10, on porous plate 10, is provided with filtering layer 7; Be provided with the sewage draining exit 6 that has blowdown and back flushing concurrently in the bottom of air supporting tube 8; The feed-water end of rising pipe 4 stretches into the bottom of filtering layer 7, and stretch out outside the air supporting tube 8 water side of rising pipe 4.
The thickness of described filtering layer 7 is 200-600mm, and the particle diameter of filtrate is 0.5～1.2mm.
Described sewage draining exit 6 is connected with the water outlet and the blow-off pipe of molten cylinder respectively by three-way valve.
Beneficial effect of the present invention:
The present invention carries out secondary filtration by making the filtering layer of process once more through flocculation treatment water, thoroughly which proportion is slightly larger than 1 fall because of the bubble contaminant filter that is deposited in the clear water zone that breaks, for improving effluent characteristics crucial effect is arranged, can be used as final water through the water quality after the present invention's processing, this also makes the vertical-flow air flotation water treatment device can be used as terminating unit and uses, greatly reduces the cost of water treatment suite of equipment.
The present invention is simple in structure, is easy to realize, and need not back flushing equipment and can finish back flushing to filtering layer, and it can utilize the sewage draining exit of former usefulness to link to each other with the molten cylinder that produces high pressure water and bubble, utilizes the pressure water of molten cylinder directly to recoil.
Description of drawings
Fig. 1 is the structural representation of existing vertical-flow air flotation device.
Fig. 2 is a structural representation of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 2.
A kind of vertical-flow air flotation device that has secondary filtration, it comprises air supporting tube 8, the top of air supporting tube 8 is equipped with slag scraper 3 and dirt discharge groove 2, be provided with reaction tube 9 in the air supporting tube 9, the bottom of reaction tube 9 is equipped with reliever 5, (pressure water and pressure air be thorough mixing in molten cylinder with molten cylinder for reliever 5, in reaction tube 9, discharge countless tiny bubbles by reliever 5 again) link to each other, the water outlet of water inlet pipe 1 stretches in the reaction tube 9, the water-in of water inlet pipe 1 stretches out reaction tube 9 and links to each other with water-supply pipe, on the water-in of water inlet pipe 1, chemicals dosing plant is installed, the bottom of air supporting tube 8, porous plate 10 is installed around the reaction tube 9, ABS drain cap 11 is installed on the hole of porous plate 10, on porous plate 10, be provided with filtering layer 7, the thickness of filtering layer 7 is that 200-600mm(can select thickness according to handling the water yield), it is the quartz sand of 0.5～1.2mm that filtrate can adopt particle diameter; Be provided with the sewage draining exit 6 that has blowdown and back flushing concurrently in the bottom of air supporting tube 8, sewage draining exit 6 is connected with the water outlet and the blow-off pipe of molten cylinder respectively by three-way valve, when needs carry out back flushing, only need open the valve road that connects molten cylinder, utilize high pressure in the molten cylinder to pour in the filtering layer 7 from drain cap 11 filtering layer is carried out back flushing, the water of back flushing can be external by dirt discharge groove 2 expelling tubes on air supporting tube top.The feed-water end of rising pipe 4 stretches into the bottom of filtering layer 7, and stretch out outside the air supporting tube 8 water side of rising pipe 4.
No longer rise and form scum silica frost if the portion water of coming out from reaction tube 9 causes ratio to be slightly larger than 1 suspended substance because bubble breaks with bubble, sink to once more on the filtering layer 7, water-in from water shoot 4 after the clear water of clear water zone is passed by on one's way through filtering layer enters the water shoot, again outside the water outlet vent gas floating drum of water shoot.
The time that pending water stops in the air supporting treatment unit is about 40min, flow velocity is at 10m/h, this speed and gravity filter are approaching, thereby it is feasible with filtering layer, the back flushing mouth is connected with molten cylinder, need not to establish in addition the backwash water pump, and recoil water outlet and former slag-drip opening are shared, the recoil water-in can be shared with the raw sewage disposal mouth, need not to establish in addition.
The equipment prior aries that maybe can adopt all same as the prior art such as part that the present invention does not relate to such as chemicals dosing plant, slag scraper, molten cylinder are realized.
Claims (4)
1. vertical-flow air flotation device that has secondary filtration, it comprises air supporting tube (8), be provided with reaction tube (9) in the air supporting tube (8), the bottom of reaction tube (9) is equipped with reliever (5), reliever (5) links to each other with molten cylinder, the water outlet of water inlet pipe (1) stretches in the reaction tube (9), the water-in of water inlet pipe (1) stretches out reaction tube (9) and links to each other with water-supply pipe, on the water-in of water inlet pipe (1), chemicals dosing plant is installed, the bottom that it is characterized in that described air supporting tube (8), porous plate (10) is installed around the reaction tube (9), drain cap (11) is installed on the hole of porous plate (10), on porous plate (10), is provided with filtering layer (7); Be provided with the sewage draining exit (6) that has blowdown and back flushing concurrently in the bottom of air supporting tube (8); The feed-water end of rising pipe (4) stretches into the bottom of filtering layer (7), and stretch out outside the air supporting tube (8) water side of rising pipe (4).
2. the vertical-flow air flotation device that has secondary filtration according to claim 1, the thickness that it is characterized in that described filtering layer (7) is 200-600mm, the particle diameter of filtrate is 0.5～1.2mm.
3. the vertical-flow air flotation device that has secondary filtration according to claim 1 is characterized in that described sewage draining exit (6) is connected with the water outlet and the blow-off pipe of molten cylinder respectively by three-way valve.
4. the vertical-flow air flotation device that has secondary filtration according to claim 1 is characterized in that the dirt discharge groove (2) that the top of described air supporting tube (8) is equipped with slag scraper (3) and matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102835110A CN101928082A (en) | 2010-09-16 | 2010-09-16 | Vertical-flow air flotation device with secondary filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102835110A CN101928082A (en) | 2010-09-16 | 2010-09-16 | Vertical-flow air flotation device with secondary filtering |
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| Publication Number | Publication Date |
|---|---|
| CN101928082A true CN101928082A (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102835110A Pending CN101928082A (en) | 2010-09-16 | 2010-09-16 | Vertical-flow air flotation device with secondary filtering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848467A (en) * | 2014-03-21 | 2014-06-11 | 山东建筑大学 | High-efficiency vertical flowing type water treatment flotation tank |
| CN106219653A (en) * | 2016-08-30 | 2016-12-14 | 天津市振津石油天然气工程有限公司 | Vertical-flow multi stage flotation column |
| CN106630227A (en) * | 2016-12-27 | 2017-05-10 | 重庆亚协环保工程有限公司 | Sand filtration and floatation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594264Y (en) * | 2002-12-30 | 2003-12-24 | 王博涵 | Household water purifier |
| CN2692138Y (en) * | 2004-03-12 | 2005-04-13 | 中山大学 | Valve controlled pond water quality automatic purifying device |
| CN201292263Y (en) * | 2008-12-05 | 2009-08-19 | 北京工业大学 | Vertical flow type aerobic gas float filter chamber |
| US20090272681A1 (en) * | 2008-04-30 | 2009-11-05 | Beijing Nengtuo High Technology Co., Ltd | Recycle water treatment system for car wash |
| CN201785272U (en) * | 2010-09-16 | 2011-04-06 | 江苏新龙鼎环保成套工程有限公司 | Vertical-flow air floatation device with secondary filtration |
-
2010
- 2010-09-16 CN CN2010102835110A patent/CN101928082A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594264Y (en) * | 2002-12-30 | 2003-12-24 | 王博涵 | Household water purifier |
| CN2692138Y (en) * | 2004-03-12 | 2005-04-13 | 中山大学 | Valve controlled pond water quality automatic purifying device |
| US20090272681A1 (en) * | 2008-04-30 | 2009-11-05 | Beijing Nengtuo High Technology Co., Ltd | Recycle water treatment system for car wash |
| CN201292263Y (en) * | 2008-12-05 | 2009-08-19 | 北京工业大学 | Vertical flow type aerobic gas float filter chamber |
| CN201785272U (en) * | 2010-09-16 | 2011-04-06 | 江苏新龙鼎环保成套工程有限公司 | Vertical-flow air floatation device with secondary filtration |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848467A (en) * | 2014-03-21 | 2014-06-11 | 山东建筑大学 | High-efficiency vertical flowing type water treatment flotation tank |
| CN106219653A (en) * | 2016-08-30 | 2016-12-14 | 天津市振津石油天然气工程有限公司 | Vertical-flow multi stage flotation column |
| CN106630227A (en) * | 2016-12-27 | 2017-05-10 | 重庆亚协环保工程有限公司 | Sand filtration and floatation device |
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Application publication date: 20101229 |