CN204400653U - A kind of integration air-float oil eliminator - Google Patents
A kind of integration air-float oil eliminator Download PDFInfo
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- CN204400653U CN204400653U CN201420823296.2U CN201420823296U CN204400653U CN 204400653 U CN204400653 U CN 204400653U CN 201420823296 U CN201420823296 U CN 201420823296U CN 204400653 U CN204400653 U CN 204400653U
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- BZHJMEDXRYGGRV-UHFFFAOYSA-N vinyl chloride Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to a kind of integration air-float oil eliminator, it is characterized in that: the side of housing is provided with water inlet pipe, opposite side is provided with rising pipe, and be provided with coagulation agitator tank, gas-floating chamber and the degree of depth between water inlet pipe and rising pipe successively except grease chamber, housing is externally connected with container air-floating apparatus.During use, the utility model, by efficient air-floating part, can remove most suspended substance and part oil slick in water, and successive depths can remove the most of oil slick in water except grease chamber.The efficient air-floating oil eliminator of integration can be arranged on the ground, also can adopt buried layout, and whole system flow process is simple, takes up an area little, and Collecting flocculation, air supporting, oil removing and backwash are in the flocculation-air floating oily-water seperating equipment of one.
Description
Technical field
The utility model relates to the technical field of industrial wastewater treatment system, specifically a kind of integration air-float oil eliminator.
Background technology
At present, industrial wastewater treatment system generally carries out air float, oily water separation process to what discharge containing high suspended matter, oil-containing industrial water, makes it to reach standards for industrial water usage Posterior circle and uses.Oil-containing industrial water generally adopts the ordinary methods such as coalescing agent, DGF, Waterpower sand remover and whizzer, and ordinary method has separating medium easily to block, and parting material needs the shortcoming of often regeneration.
Conventional method floor space is large, is not easy to arrange on the ground, and in conventional water-and-oil separator, corrugated-crossed panel material needs regularly manually to take out cleaning, more time-consuming and working strength is large.
Summary of the invention
The purpose of this utility model is the integration air-float oil eliminator providing a kind of improvement, and it can overcome separating medium in prior art and easily block, and needs regeneration, takes up an area large some shortcomings.
To achieve these goals, the technical solution of the utility model is: a kind of integration air-float oil eliminator, it mainly comprises housing, it is characterized in that: the side of housing is provided with water inlet pipe, opposite side is provided with rising pipe, be provided with coagulation agitator tank, gas-floating chamber and the degree of depth between water inlet pipe and rising pipe successively except grease chamber, housing is externally connected with container air-floating apparatus.
During use, the utility model, by efficient air-floating part, can remove most suspended substance and part oil slick in water, and successive depths can remove the most of oil slick in water except grease chamber.The efficient air-floating oil eliminator of integration can be arranged on the ground, also can adopt buried layout, and whole system flow process is simple, takes up an area little, and Collecting flocculation, air supporting, oil removing and backwash are in the flocculation-air floating oily-water seperating equipment of one.Wherein oil eliminator filler part-structure is shaped to the waved plate of flyover formula, the direction of flyover formula waved plate intersects, the contact area of particle and plate increases, be easy to depth of precipitation and remove the waved plate material that grease chamber's employing filler is flyover formula, basic functional principle meets Stokes law, the oil droplet of the unbound state of in water more than 20 μm can be removed, reach good oil-water separation.
Accompanying drawing explanation
Fig. 1 is the utility model cross-flow formula waved plate mechanism structure schematic diagram.
Fig. 2 is the structural representation of the utility model one embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
The label of each accompanying drawing is expressed as follows:
1 water inlet pipe, 2 oil eliminator enclosure interior establish agitator, 3 surperficial slag scrapers, 4 ash pits, 5 fork fluid-type waved plate mechanisms, 6 profit baffle plates, 7 wash tub pipes, 8 to regulate weir plate, 9 oil traps, 10 rising pipes, 11 return water pipes, 12 pressure pumps, 13 pressure air-dissolving tanks, 14 air compressor machines, 15 release heads, 16 sludge hoppers, 17 shore pipes.
A kind of integration air-float oil eliminator described in the utility model, it mainly comprises housing, its difference with the prior art is: the side of housing is provided with water inlet pipe, opposite side is provided with rising pipe, be provided with coagulation agitator tank, gas-floating chamber and the degree of depth between water inlet pipe and rising pipe successively except grease chamber, housing is externally connected with container air-floating apparatus.Be provided with an agitator in described coagulation agitator tank, be provided with release head bottom gas-floating chamber, bottom is provided with surperficial slag scraper and the ash pit corresponding with surperficial slag scraper.Container air-floating apparatus is formed by connecting by pressure air-dissolving tank and the air compressor machine that is connected with pressure air-dissolving tank, and bottom gas-floating chamber, side is provided with return water pipe, is provided with pressure pump between return water pipe and container air-floating apparatus.
Described degree of depth oil removing indoor are provided with cross-flow formula waved plate mechanism, the top of cross-flow formula waved plate mechanism is provided with profit baffle plate, and the wash tub pipe to match with profit baffle plate, the opposite side of cross-flow formula waved plate mechanism is provided with oil trap, oil trap place is provided with adjustable weir plate, and cross-flow formula waved plate actuator base is provided with sludge hopper.Sludge hopper is funnel-form, and the bottom of sludge hopper is provided with shore pipe.
In the specific implementation, described cross-flow formula waved plate mechanism 5 is by be parallel to each other and waved plate arranged in a crossed manner is formed, spacing between waved plate is 10mm ~ 20mm, determine as required, described waved plate is that polyvinyl chloride is (when heating agent is steam, adopt stainless steel), hard vinylchlorid and polypropylene, stainless steel, this material had both had the characteristic of waved plate, there is again the moulding (swash plate angle 60 °) of swash plate, flyover formula waved plate adopts PVC(temperature can reach 60 DEG C), HPVC(high-temperature PVC, temperature can reach 65 DEG C) and PP(polypropylene, temperature can reach 85 DEG C) three kinds of materials.But when medium temperature is more than more than 85 DEG C, stainless material can be adopted, specification be high 1 foot, 2 feet, wide 1 foot, 2 feet, long 4,6,8,10 feet.For non-metallic material, base mateiral oil-containing multiple additives, makes it have oleophylic performance (but not viscous oil), chemical resistance, UV resistant and the feature such as anti-aging.Between plate, spacing is the waste water of 12.7mm(for high suspended matter, and spacing can be adopted to be the design of 19mm).Therefore, when current are by filler, short grained oil droplet under gravity, only needs rising 12.7mm, can touch and hit collector plate, namely be caught by waved plate.We claim this phenomenon to be that gravity accelerates separation principle.Due to the effect of collector, short grained oil droplet can be gathered into larger oil droplet, and oil droplet upwards flows along the plate structure of filler.According to Stokes law, the oil droplet of larger particles can climb up on top of the water rapidly, separates completely with water body.
Can find out according to Fig. 1, the waved plate of flyover formula is similar to the swash plate in inclined-plate clarifying basin, and it is except providing the passage of water stream channel, oil floating, the same with inclined-plate clarifying basin, also provide the passage that suspended substance sinks, its slag removing function and inclined-plate clarifying basin are the same.And its slagging-off effect is better than inclined-plate clarifying basin, the direction of the plate of inclined-plate clarifying basin is consistent, and the direction of the plate of the waved plate of three-dimensional staggered form intersects, and the contact area of particle and plate increases, and more easily precipitates.
Water (flow) direction is normally along waved plate percolation or to dirty.Recommend (API publishes 421 water-and-oil separator standard and operational standards) according to U.S. API standard, the typical distance between plates between waved plate is between 0.75 to 1.5 inch.But also have when distance between plates reduces to 0.25 inch the case successfully used.The greasy filth dirt in waved plate can be caused stifled when waved plate uses overstocked.In order to address this problem generally, we just use high pressure water washing.The waved plate of large quantity theoretically can more effective removal oil, also needs to safeguard more frequently simultaneously.The angle of waved plate is generally between 45 ~ 60 °, and angle is larger, and the sedimentation congregational rate of mud is better.
Accumulation type filler is made up of PVC or PP waved plate.Every block waved plate is 45 ~ 60 ° and combines, and relies on the hasp of ripple connecting portion to bond between every block waved plate.Because which form the space of relative percolation, ensure that the passage of current.The waved plate medium of percolation forces current chop and change direction, and this helps little elaioleucite to contact with the surface collision of waved plate.Advection is very important for Liquid liquid Separation, and turbulent flow small in waved plate helps oil droplet coalescence to be separated.
Be illustrated in figure 2 the efficient air-floating oil eliminator of carbon steel ground type integration, design SS≤500mg/L of normally intaking, in short-term, influent turbidity is not more than 1000mg/L, goes out water suspension and is not more than 10mg/L, normal water inlet oleaginousness≤500mg/L, water outlet oleaginousness≤2mg/L.The utility model can realize automatic control, can run continuously, ensures that effluent quality is even, can monitoring continuously.
Oily(waste)water enters the efficient air-floating oil eliminator of integration by inlet pipe.First waste water enter flocculation stirring case, adds composite water purifying agent in case.Suspended substance stirs flocculation through agitator 2, forms macrobead alumen ustum.Through water jet propulsion, enter gas-floating chamber.Molten gas release head 15 is installed bottom gas-floating chamber, form the abundant mixing of microbubble group and impurities in water after the release of molten gas, contact, adhesion, flocs with gas and clear water complete and are separated in dissolved air flotation formula, and surface scum is scraped slag continuously by surperficial slag scraper 3 and entered ash pit 4.Clear water, by horizontal weir, produces stable laminar flow, and slowly enter fork fluid-type waved plate mechanism 5, this waved plate is called collector on chemical industry.This corrugated plate material based on PVC, includes multiple additives, makes it have oleophylic and non-viscous oil, aging-resistant feature.Waved plate stacks up one by one, and distance between plates is 12.7mm.Usual employing level is installed.When liquid flows through, oil droplet is caught rapidly by waved plate, namely can be gathered on waved plate, and separate with water.Due to the principle of collector, short grained oil droplet is easy to be caught by the waved plate of oleophylic, move up along the hyperchannel of waved plate after being caught by waved plate and be constantly gathered into oarse-grained oil droplet, the oil droplet of larger particles is according to Stokes principle, float to rapidly the surface of water-and-oil separator, profit is thoroughly separated.Arrange an oil trap 9 in oil eliminator, the sump oil floating to the water surface is flowed in oil trap 9 by the adjustment weir plate 8 of oil trap 9, then flows in outside PP material fuel tank by gravity, thus completes the whole process of oily water separation.The degree of depth is removed top, grease chamber and is provided with washing unit, and the realization of backwash function mainly starts flushing as required by the backwash spray equipment at oil eliminator mechanism top, and wash-down water is hot water/steam.
Oil eliminator bottom of device establishes sludge hopper 16, and the mud collected in sludge hopper 16 is discharged by shore pipe 17, and sludge discharging period is 24 hours.
Through the operation of certain hour, need to rinse fork fluid-type waved plate mechanism 5, wash tub pipe 7 is Rotatable spraying pipe, ensures that each angle of fork fluid-type waved plate mechanism 5 can spray and thoroughly cleans.Cleaning sewer enters sludge hopper 16, outside discharger.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. an integration air-float oil eliminator, it mainly comprises housing, it is characterized in that: the side of housing is provided with water inlet pipe, and opposite side is provided with rising pipe, be provided with coagulation agitator tank, gas-floating chamber and the degree of depth between water inlet pipe and rising pipe successively except grease chamber, housing is externally connected with container air-floating apparatus.
2. a kind of integration air-float oil eliminator according to claim 1, it is characterized in that: be provided with an agitator in described coagulation agitator tank, be provided with release head bottom gas-floating chamber, bottom is provided with surperficial slag scraper and the ash pit corresponding with surperficial slag scraper.
3. a kind of integration air-float oil eliminator according to claim 1, it is characterized in that: described degree of depth oil removing indoor are provided with cross-flow formula waved plate mechanism, the top of cross-flow formula waved plate mechanism is provided with profit baffle plate, and the wash tub pipe to match with profit baffle plate, the opposite side of cross-flow formula waved plate mechanism is provided with oil trap, oil trap place is provided with adjustable weir plate, and cross-flow formula waved plate actuator base is provided with sludge hopper.
4. a kind of integration air-float oil eliminator according to claim 3, it is characterized in that: sludge hopper is funnel-form, the bottom of sludge hopper is provided with shore pipe.
5. a kind of integration air-float oil eliminator according to claim 1, it is characterized in that: container air-floating apparatus is formed by connecting by pressure air-dissolving tank and the air compressor machine that is connected with pressure air-dissolving tank, bottom gas-floating chamber, side is provided with return water pipe, is provided with pressure pump between return water pipe and container air-floating apparatus.
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| CN201420823296.2U CN204400653U (en) | 2014-12-23 | 2014-12-23 | A kind of integration air-float oil eliminator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016509A (en) * | 2015-08-29 | 2015-11-04 | 魏巍 | Multifunctional sewage treatment machine applied to industrial sewage treatment |
| CN105347432A (en) * | 2015-11-17 | 2016-02-24 | 深圳市天得一环境科技有限公司 | Full-automatic efficient oil filtering equipment |
| CN106336034A (en) * | 2015-07-08 | 2017-01-18 | 江苏金门能源装备有限公司 | Multistage gas flooding type sewage treatment equipment |
-
2014
- 2014-12-23 CN CN201420823296.2U patent/CN204400653U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336034A (en) * | 2015-07-08 | 2017-01-18 | 江苏金门能源装备有限公司 | Multistage gas flooding type sewage treatment equipment |
| CN105016509A (en) * | 2015-08-29 | 2015-11-04 | 魏巍 | Multifunctional sewage treatment machine applied to industrial sewage treatment |
| CN105347432A (en) * | 2015-11-17 | 2016-02-24 | 深圳市天得一环境科技有限公司 | Full-automatic efficient oil filtering equipment |
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