CN201660460U - Vertical air flotation device - Google Patents

Vertical air flotation device Download PDF

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Publication number
CN201660460U
CN201660460U CN2010200225727U CN201020022572U CN201660460U CN 201660460 U CN201660460 U CN 201660460U CN 2010200225727 U CN2010200225727 U CN 2010200225727U CN 201020022572 U CN201020022572 U CN 201020022572U CN 201660460 U CN201660460 U CN 201660460U
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CN
China
Prior art keywords
feed well
stabilizing feed
inlet pipe
water inlet
water
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Expired - Lifetime
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CN2010200225727U
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Chinese (zh)
Inventor
孟虎
谈家彬
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Jiangsu Qingyi Environmental Protection Equipment Co Ltd
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Jiangsu Qingyi Environmental Protection Equipment Co Ltd
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Abstract

A vertical air flotation device relates to a structural improvement to the existing vertical air flotation device and comprises a tank, a dissolved air releasing system and a steady flow barrel. A sewage inlet pipe is arranged at the top of the tank, a water outlet pipe is arranged on the wall of the middle lower portion of the tank, the dissolved air releasing system is arranged at the bottom of the steady flow barrel, the water inlet pipe is inserted into the steady flow barrel and corresponds to the dissolved air releasing system, an upper opening and a lower opening of the steady flow barrel are respectively flared, and an outlet of a water inlet pipe is also flared. As the vertical air flotation device is provided with three flare openings, when water flowing from the flare opening of the water inlet pipe is diffused in the large flare opening, namely the lower opening of the steady flow barrel, the dissolved air releasing device ejects out high-pressure airflow to the sewage which flows from top to bottom and is diffused so as to bubble the sewage and lead the bubbles to scatter into the lower flared opening, emulsified oil, oil solids, flocculate and larger impurities in the sewage can be attached onto surfaces of the bubbles, and then float upwards in the steady flow barrel and flow to the upper flared opening of the steady flow barrel to be removed by a skimmer finally.

Description

Vertical-type air-flotation device
Technical field
The utility model relates to the improvement of vertical air-floating apparatus structure.
Background technology
The air supporting method also claims flotation process, its principle is to manage to make a large amount of microbubble of generation in the water, to form water, gas and to be removed the three-phase mixture of material, under the acting in conjunction of multiple power such as interfacial tension, bubble rising buoyancy and hydrostaticpressure difference, promote micro bubble to stick on the tiny dirts such as tiny oil droplets in the sewage, SS, because of adherend density less than floating to the water surface on the water, thereby make the separated removal of tiny dirt in the water.The common conduct of air supporting method is to the additional processing after the oily(waste)water oil removal.
The air supporting method can be divided into gas distribution air supporting method, electric floating method, biology and chemical air supporting method, dissolved air flotation.Wherein, gas distribution air supporting method (dispersion air air supporting method) is mainly utilized the mechanical shear cutting knife, and the air that is mixed in the water is ground into tiny bubble.The for example air-breathing air supporting of water pump suction pipe, jet air float, air supporting of diffuser plate aeration and turbine air flotation etc. all belong to this type of.In addition, dissolved air flotation (dissolved air air supporting method) is to make air dissolves in the water and the state that reaches capacity under certain pressure, then reaches the air supporting effect.
Along with the water treatment environmental protection industry (epi) develops fast, answer the environmental protection demand now, the vertical-flow air flotation system has appearred in sewage treatment area at present, this system has successfully used aforementioned two kinds of physical treatment principles to design, and cohesion, air supporting, skimming, precipitation, suction mud have been compiled in one, be a kind of water purification equipment preferably, be widely used in the industrial sewage treatment system (as: papermaking, food, plating, process hides, knitting, printing and dyeing, wool spinning, butcher, oil, chemical industry etc.).Yet present vertical-flow air flotation scrubbing rate only has about 70%, and treatment rate is not high, and self clears up with maintenance inconvenient.We discover, causing the low major cause of above-mentioned scrubbing rate is that the bubble size that forms in the device is inhomogeneous, and bigger than normal, cause elaioleucite in bubble and the sewage, throw out, the mutual adhesive rate of macromole impurity lower; Dissolved air water and former aqueous fusion are closed unconcentrated insufficient; Water outlet is mixed with untreated former water.
Summary of the invention
The utility model provides a kind of processing efficiency high vertical-type air-flotation device at above-mentioned deficiency of the prior art.
The technical solution of the utility model is: comprise tank body, molten gas release system and be arranged on a jar intravital stabilizing feed well, described tank body top is provided with sewage water inlet pipe, the tank skin of tank body middle and lower part is provided with rising pipe, described molten gas release system is located at described stabilizing feed well bottom, it is interior and corresponding with described molten gas release system that described water inlet pipe stretches into stabilizing feed well, suitable for reading and the end opening of described stabilizing feed well is respectively bell mouth shape, and the outlet of described water inlet pipe is a bell mouth shape.
The hydraucone bore of described stabilizing feed well end opening is greater than its hydraucone bore suitable for reading.
Described stabilizing feed well stack shell axially is being hyperbola.
Be provided with a circle rib in the described stabilizing feed well, described rib position is higher than the outlet of described water inlet pipe.
Be provided with back-purge system in the described stabilizing feed well, described back-purge system is positioned at described stabilizing feed well bottom.
Described tank body external wall of upper portion is provided with the clear water storehouse of a circle, and described rising pipe links to each other with described clear water storehouse, and the clear water storehouse is provided with water outlet, and water outlet static state is overflowed.
Have three hydraucones in the device of the present utility model, upper and lower mouthful of difference flare of stabilizing feed well, water inlet pipe exports also flare.During work, the water inlet pipe loudspeaker export effusive water and spread in the typhon mouth of stabilizing feed well end opening, simultaneously, molten gas releasing device (aerating apparatus) is facing to the sewage ejection high pressure draft that flows out diffusion from top to bottom, make sewage form bubble, and be diffused into down rapidly in the hydraucone (hydraucone of stabilizing feed well end opening), the oil in water emulsion in the sewage, elaioleucite, throw out and big impurity are attached to bubble surface; Immediately in stabilizing feed well on float, to the last hydraucone of stabilizing feed well, dispose by skimmer device.The aerating apparatus that is positioned at water inlet pipe outlet bottom is laid ringwise.For further making bubble even, stabilizing feed well of the present utility model middle part is provided with a circle rib, if the bubble that rises is more, contain more large-size bubbles, can be intercepted by this rib, the bubble roof pressure that the bubble of being piled up by obstruct is floated by the bottom simultaneously, make mutual extrusion between the bubble at this reducing position, be broken for the more bubble of small particle size, thereby improve treatment effect.Regularly open the gas back-purge system, carry out air supporting self cleaning, maintaining.The rising pipe that described tank skin middle and lower part is provided with is connected to the conduit that stretches to top in the tank skin outside, be communicated with the clear water storehouse on top, and the water outlet on the clear water storehouse overflows water outlet static state, make overflow no longer be mixed with untreated former water and impurity.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is molten gas release system among the figure, the 2nd, and water inlet pipe outlet, the 3rd, following hydraucone, the 4th, stabilizing feed well, the 5th, water inlet pipe, the 6th, rib, the 7th, last hydraucone, the 8th, slag notch, the 9th, slag gathering hopper, the 10th, skimmer device, the 11st, water outlet, the 12nd, tank body, the 13rd, back-purge system, the 14th, clear water storehouse, the 15th, rising pipe.
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the structural representation of another embodiment of the utility model
Embodiment
The utility model as shown in Figure 1, 2, comprise tank body 12, molten gas release system 1 and be arranged on stabilizing feed well 4 in the tank body 12, described tank body 12 tops are provided with sewage water inlet pipe 5, the tank skin of tank body 12 middle and lower parts is provided with rising pipe 15, described molten gas release system 1 is located at described stabilizing feed well 4 bottoms, described water inlet pipe 5 stretches in the stabilizing feed well 4 and is corresponding with described molten gas release system 1, and the suitable for reading and end opening of described stabilizing feed well 4 is respectively bell mouth shape, and it is bell mouth shape that described water inlet pipe exports 2.And then form three hydraucones: the last hydraucone 7 of stabilizing feed well 4, the following hydraucone 3 of stabilizing feed well 4 and water inlet pipe export 2 hydraucone.
The hydraucone bore of described stabilizing feed well 4 end openings is greater than its hydraucone bore suitable for reading.
Described stabilizing feed well 4 stack shells axially are being hyperbola.
Be provided with a circle rib 6 in the described stabilizing feed well 4, described rib 6 positions are higher than the outlet of described water inlet pipe 5.Rib 6 also can adopt alternate manner, intersects several straight-bars of horizontal as the sieve plate of big eyelet or on the cross section of stabilizing feed well 4.
Be provided with back-purge system 13 in the described stabilizing feed well 4, described back-purge system 13 is positioned at described stabilizing feed well 4 bottoms.
Described tank body 12 external wall of upper portion are provided with the clear water storehouse 14 of a circle, and described rising pipe 15 links to each other with described clear water storehouse 14, and clear water storehouse 14 is provided with water outlet 11, and water outlet static state is overflowed.
For the bubble of guaranteeing to float is in time got rid of, the utility model is provided with skimmer device 10 on the top of tank body 12, skimmer device 10 is moved at the tank body internal rotation, consistent with the lower edge height of skimmer device 10, in tank body 12, be provided with slag gathering hopper 9, after the scum silica frost that has adhered to impurity that floats enters slag gathering hopper 9, discharge tank body 12 by slag notch 8.
Should also be noted that following concrete item when in addition, making the utility model:
1, be provided with stabilizing feed well in vertical-flow air flotation inside, upper and lower designing two portions becomes horn-like; Typhon mouth down, its diameter are about 3/4 of diameter at the bottom of the pond; The diameter of litmus mouth is about 3/4 of typhon diameter.The cylindrical shell height overall be about the pond high 3/5, material is a steel.
2, overflow system is on the pool wall of pond body bottom about 3/10, on average opens 6-8 mouthful all around.Opening part wall external application steel pipe links, and steel pipe top (water outlet) is about 1/6 at outer rim place, body top, pond apart from pond mouth upper limb.
3, back-purge system is made up of air compressor machine, inlet pipe, flushing endless tube, dirt-discherging outlet, vacuum pump.Regularly open the gas back-purge system, carry out air supporting self cleaning, maintaining.
4, former water inlet pipe water outlet Front-end Design becomes horn, and the hydraucone maximum diameter is about 4 times of water caliber into.The three horn air supportings of perpendicular stream are made up of pond body (steel), skimmer device, stabilizing feed well, overflow system, molten gas release system, back-purge system, molten gas releasing device.The utility model is mainly at stabilizing feed well, former water inlet pipe water outlet, overflow system, back-purge system.Stabilizing feed well: in the air flotation pool body, place stabilizing feed well and make the double horn formula, make it really to become the heart that air-float water is handled, make the sewage of Chi Tizhong, the sewage handled and handle after water purification scientifically separate, and it is more concentrated, more effective that air supporting is handled; The wastewater treatment rate that can make this device improves 3-5 doubly, and has improved sewage disposal speed, and cost of sewage disposal has reduced more than 80%, has reduced running cost greatly.
Former water inlet pipe water outlet Front-end Design becomes horn, can come sewage by sending forth under last well, resemble and drench the first sample of Mongolian, the dissolved air water short mix that discharges with releasing device from bottom to top that area is bigger, make mixing more abundant, make dirt in the sewage effectively by air supportingization.
Overflow system normally is that the water after handling goes out in pond body top overflow, also is the upper epidermis skimming, also in the upper epidermis overflow, though also be to flow out after the skimming, also is easy to not casting aside the also overflow and having gone out of clean slag-water slurry.Existing overflow system utilization " U " shape pipe is isobaric, the principle that has pressure reduction promptly to overflow, water purification spillway after handling is moved to body middle and lower part, pond by top, be connected to the conduit that stretches to top in the tank skin outside, water outlet static state is overflowed, make overflow no longer be mixed with untreated former water and impurity, further improve the quality that purifies, water treatment slagging-off, oil removal rate are reached more than 95%.
In air supporting, design back-purge system, air-floating apparatus can self be cleaned, continue to keep high-efficient operation.
Finally can make the internal structure of the vertical-flow air flotation that integrates cohesion, air supporting, skimming, precipitation, suction mud.

Claims (6)

1. vertical-type air-flotation device, comprise tank body, molten gas release system and be arranged on a jar intravital stabilizing feed well, described tank body top is provided with sewage water inlet pipe, the tank skin of tank body middle and lower part is provided with rising pipe, described molten gas release system is located at described stabilizing feed well bottom, and it is interior and corresponding with described molten gas release system that described water inlet pipe stretches into stabilizing feed well, it is characterized in that, suitable for reading and the end opening of described stabilizing feed well is respectively bell mouth shape, and the outlet of described water inlet pipe is a bell mouth shape.
2. vertical-type air-flotation device according to claim 1 is characterized in that, the hydraucone bore of described stabilizing feed well end opening is greater than its hydraucone bore suitable for reading.
3. vertical-type air-flotation device according to claim 1 is characterized in that, described stabilizing feed well stack shell axially is being hyperbola.
4. according to claim 1,2 or 3 described vertical-type air-flotation devices, it is characterized in that be provided with a circle rib in the described stabilizing feed well, described rib position is higher than the outlet of described water inlet pipe.
5. according to claim 1,2 or 3 described vertical-type air-flotation devices, it is characterized in that, be provided with back-purge system in the described stabilizing feed well, described back-purge system is positioned at described stabilizing feed well bottom.
6. vertical-type air-flotation device according to claim 1 is characterized in that, described tank body external wall of upper portion is provided with the clear water storehouse of a circle, and described rising pipe links to each other with described clear water storehouse, and the clear water storehouse is provided with water outlet, and water outlet static state is overflowed.
CN2010200225727U 2010-01-15 2010-01-15 Vertical air flotation device Expired - Lifetime CN201660460U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101759243B (en) * 2010-01-15 2012-05-23 江苏清溢环保设备有限公司 Vertical air flotation device
CN103922501A (en) * 2013-01-15 2014-07-16 滕州市水星环保工程有限公司 Radial flow type air flotation machine
CN107986389A (en) * 2017-11-29 2018-05-04 廊坊新奥龙河环保科技有限公司 A kind of oil-containing danger waste liquor treatment equipment
CN110372077A (en) * 2019-06-28 2019-10-25 东北石油大学 Load coalescence flocculation plant and a kind of oil-contaminated water processing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101759243B (en) * 2010-01-15 2012-05-23 江苏清溢环保设备有限公司 Vertical air flotation device
CN103922501A (en) * 2013-01-15 2014-07-16 滕州市水星环保工程有限公司 Radial flow type air flotation machine
CN107986389A (en) * 2017-11-29 2018-05-04 廊坊新奥龙河环保科技有限公司 A kind of oil-containing danger waste liquor treatment equipment
CN107986389B (en) * 2017-11-29 2024-03-15 廊坊新奥龙河环保科技有限公司 Oily hazardous waste liquid treatment equipment
CN110372077A (en) * 2019-06-28 2019-10-25 东北石油大学 Load coalescence flocculation plant and a kind of oil-contaminated water processing method
CN110372077B (en) * 2019-06-28 2021-09-07 东北石油大学 Loading coalescing flocculation device and method for treating oily sewage

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20101201

Effective date of abandoning: 20100115