CN206624732U - A kind of efficient oil-contained waste water treatment device - Google Patents
A kind of efficient oil-contained waste water treatment device Download PDFInfo
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- CN206624732U CN206624732U CN201621379440.3U CN201621379440U CN206624732U CN 206624732 U CN206624732 U CN 206624732U CN 201621379440 U CN201621379440 U CN 201621379440U CN 206624732 U CN206624732 U CN 206624732U
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Abstract
The utility model provides a kind of efficient oil-contained waste water treatment device, is sent into electric flocculation pond after the pressurization of pending oil-polluted water, produces multinuclear hydroxo complex, hydroxide floccule and hydrogen gas bubbles；Dissolved air water is added to the oil-polluted water after electrolysis, makes floccule, sand grain and the bulky grain oil droplet in multinuclear hydroxo complex absorption effluent；Make the microbubble and hydrogen gas bubbles parcel oil droplet and sand grain in dissolved air water；Cyclonic separation removes floccule, larger sand grain and oil droplet；Sewage after processing carries out dissolved air flotation under full water low-pressure state, removes remaining multinuclear hydroxo complex oil droplet, hydroxide floccule suspended particulate, microbubble oil droplet and silt impurity, obtains water purification.The utility model can remove oil droplet, silt particle, colloid, dissolved organic matter and heavy metal ion in decontaminated water simultaneously, can also kill bacterium and virus in water, be not required to add chemical reagent, water stabilization is up to standard after processing.
Description
Technical field
It the utility model is related to a kind of efficient oil-contained waste water treatment device, and in particular to one kind includes electric flocculation, waterpower
Eddy flow, pneumatically supported more process disposing polluted water in oil technologies.
Background technology
At present, China's onshore oil field uses waterflooding extraction formula substantially, i.e., to stratum injection high pressure water-driven crude oil make its from
It is extracted, is produced in sewage mainly comprising dispersed oil and oil slick, silt particle particle, colloid, dissolved organic matter, again in oil well
The impurity such as metal ion.Traditional oil-contaminated water processing method (settling methods, coagulation oil removal process, coalescence, Bubble-floating Method,
Centrifugal settling method etc.) many deficiencies be present, plurality of impurities can not be such as handled simultaneously, and time-consuming for processing procedure, processing equipment volume
Greatly, floor space is big, and many combined type oil-contaminated water processing methods arise at the historic moment on this basis.
Electrolytic flocculation refers in the presence of electric current, metal of the electrolysis with certain activity, is persistently produced in waste water
Metal cation, and by hydrolyzing, polymerizeing, multinuclear hydroxo complex and hydroxide are produced, as flocculant to pollutant
It is condensed.Electric flocculation technique equipment is simple, investment cost is low, will not produce secondary pollution, effectively can separate out in sewage
The impurity such as oil droplet, colloid, heavy metal ion, it can also kill bacterium and virus in water.
Hydraulic cyclone is the density variation based on water and oil, under used in centrifugal force, makes oil to rotation caused by hydraulic cyclone
Whirlpool Center shift.Hydraulic cyclone treatment effeciency is high, but it can not effectively remove the solid wrapped up in decontaminated water by oils, also not
Suitable for capturing little particle oil droplet, thus air supporting is handled generally as the next stage of hydraulic cyclone, and cyclone air-flotation combination is being studied
In enjoy favor.
There is also many defects for existing cyclone air-flotation method：
Part cyclone air-flotation need to use agent-feeding treatment, oil droplet is condensed into water cotton-shaped, but agent-feeding treatment can cause to transport
The costly and secondary pollution problems of row, its practicality can not show a candle to electric flocculation；
Hydraulic cyclone process needs sewage high-speed rotational in tank body, and air supporting process needs sewage to be in geo-stationary
State, oil particles are taken out of the water surface using the buoyancy of microbubble in itself, ensure fluid high-speed eddy flow and static state in same tank body
Dissolved air flotation is conflicting；
Many design methods can have a strong impact on the effect of settling of separator, and aerating by the way of tank base aerating
It is excessively near that device separates out the mouth of a river, is easily caused microbubble and is expelled directly out tank body；
Oil-polluted water day output is all bigger at present, and the treating capacity of corresponding cyclonic separation processing equipment is smaller, to meet
Demand of processing quantity usually requires a lot of identical equipment parallel connections, causes overall process device volume huge, and meets the list for the treatment of capacity
Individual knockout drum tank diameter is all very big, can not ensure the swirl velocity of oil-polluted water, it is impossible to meet Separation Indexes.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of by " electric flocculation, hydraulic cyclone, air supporting " three kinds of works
The processing method that skill is integrated in one；There is provided a kind of high efficiency sewage treatment facility simple in construction, small volume, the device energy simultaneously
It is enough to complete three kinds of electric flocculation, water conservancy eddy flow and air supporting sewage disposal process simultaneously, to solve to easily cause in existing design scheme
Secondary pollution, hydraulic cyclone speed is low, the residence time is short and the technical problem such as microbubble skewness.
Technical solution of the present utility model is to provide a kind of efficient oil-contaminated water processing method, including following step
Suddenly：
1) pumped oil-polluted water is lifted；
2) electric flocculation pond is sent into after the pressurization of pending oil-polluted water, oil-polluted water is electrolysed using dc source, produced more
Core hydroxo complex, hydroxide floccule and hydrogen gas bubbles；Oil droplet and dissolved organic matter are adsorbed with multinuclear hydroxo complex；
3) dissolved air water is added to the oil-polluted water after electrolysis, makes floccule, the mud in multinuclear hydroxo complex absorption effluent
Sand grain and bulky grain oil droplet；Make the microbubble and hydrogen gas bubbles parcel oil droplet and sand grain in dissolved air water；
4) cyclonic separation removes floccule, larger sand grain and oil droplet；
5) sewage after step 3) processing carries out dissolved air flotation under full water low-pressure state, removes remaining multinuclear hydroxyl network
Compound-oil droplet, hydroxide floccule-suspended particulate, microbubble-oil droplet and silt impurity, obtain water purification.
The utility model also provides a kind of efficient oil-contained waste water treatment device, and it is particular in that：Including electric flocculation
Pond, the gentle floating drum body of hydraulic cyclone cylinder；
Upper cover is installed in the upper end of above-mentioned air supporting cylinder, and oil discharge outlet is set on above-mentioned upper cover；Under above-mentioned air supporting cylinder
End installation low head, above-mentioned low head set sewage draining exit and delivery port；Set on above-mentioned air supporting cylinder into dissolved air water mouth；Air supporting cylinder
Body is internally provided with cloth dissolved air water pipe；The cloth dissolved air water pipe with it is above-mentioned enter dissolved air water mouth be connected；
Above-mentioned hydraulic cyclone cylinder is installed in air supporting cylinder, hydraulic cyclone cylinder lower end connection collapsible tube, collapsible tube with
Above-mentioned sewage draining exit connection；Hydraulic cyclone cylinder upper end open, and have distance with air supporting barrel upper seal head；Set on hydraulic cyclone cylinder
It is equipped with tangential water inlet；
Air supporting cylinder, the delivery port in above-mentioned electric flocculation pond and tangentially entering on hydraulic cyclone cylinder are run through in above-mentioned electric flocculation pond
The mouth of a river connects, and the water inlet in electric flocculation pond is used for into sewage.
Above-mentioned hydraulic cyclone cylinder is inner cylinder inner-rotary type, and oil-polluted water mixes with part dissolved air water, is produced together with electric flocculation
Hydrogen gas bubbles, into inner barrel carry out eddy flow；Water conservancy eddy flow will increase microbubble, multinuclear hydroxo complex, hydroxide with
The contact probability of oil droplet；Hydrocyclone separation technology efficiency high, oil droplet larger in decontaminated water, silt particle particle can be removed substantially.
Above-mentioned air supporting, the outer cylinder body in tank body occurs, selected air supporting cylinder volume is much larger than water conservancy eddy flow cylinder, and is in
Full water low-pressure state, be advantageous to before two-stage process generation multinuclear hydroxo complex-oil droplet, hydroxide-oil droplet, microbubble-
The purification separation of the impurity such as oil droplet and colloid, silt particle.
Preferably, above-mentioned electric flocculation pond includes housing, positive electrode plate and negative electrode plate, above-mentioned positive electrode plate and negative electrode plate
Enclosure interior is detachably arranged in, above-mentioned electric flocculation pond includes positive electrode plate and negative electrode plate, above-mentioned positive electrode plate and negative electricity
Pole plate is perpendicular to the arrangement of water inlet direction, and adjacent plate spacing is 25~35mm, and electrode thickness is not less than 5mm.Dc source is positive and negative
Pole is sequentially connected with positive and negative electrode plate, because electrolysis need to consume positive electrode plate, in negative electrode plate surface attachment heavy metal, therefore can
Periodically switching dc source cathode and anode directions.Positive electrode plate produces the chain structure of multinuclear hydroxo complex, and there is net to catch, build bridge
Effect, absorption property can be adsorbed effectively in water higher than the absorption property for the hydroxide that common chemical floc generates
Oil droplet, dissolved organic matter, and flco is closely knit, and back dissolving will not occur.Reduction reaction occurs for negative electrode plate, can remove a huge sum of money in water
Belong to ion, while produce hydrogen.
Preferably, above-mentioned positive electrode plate and negative electrode plate are aluminium sheet.
Preferably, the housing of above-mentioned flocculation basin is rectangular shape.
Preferably, the upper end of above-mentioned hydraulic cyclone cylinder is upward 5 ° of flaring structure.
Preferably, there is uniform perforate on above-mentioned cloth dissolved air water pipe.
In order to ensure oil-polluted water high-speed rotational, multiple tangential water inlets, electricity wadding are provided with above-mentioned hydraulic cyclone cylinder
The quantity in solidifying pond is corresponding with the quantity of tangential water inlet.
Above-mentioned collapsible tube is conical converging.
For the ease of the maintenance and cleaning of equipment, visor and manhole are provided with air supporting cylinder；
In order to avoid delivery port sucks sand grain, above-mentioned sewage outfalls setting is in low head center, above-mentioned delivery port
Horizontal level be higher than the horizontal level of low head, and delivery port and sewage draining exit keep certain distance.
The beneficial effects of the utility model are：
1st, " electric flocculation, hydraulic cyclone, air supporting " technique is integrated in one, three kinds of technical advantage complementations, decontamination can be removed simultaneously
Oil droplet, silt particle, colloid, dissolved organic matter and heavy metal ion in water, can also kill bacterium and virus in water, be not required to add
Chemical reagent, water stabilization is up to standard after processing.
2nd, the pneumatically supported technique of inner cylinder eddy flow, outer barrel, ensure that while space is saved oil-polluted water swirl velocity and
The microbubble residence time；Emulated simultaneously using CFD, the design parameter such as air supporting cylinder, cloth dissolved air water pipe position in optimization, improve gas
Floating separating effect.
Brief description of the drawings
Fig. 1 is process chart of the present utility model；
Fig. 2 is the front view of the utility model device；
Fig. 3 is the overhead, partial cut-away view of the utility model device；
Fig. 4 is the left view structural representation of the utility model device；
Fig. 5 is that the utility model CFD emulates to obtain oil-water separation figure；
Fig. 6 is that the utility model CFD emulates to obtain microbubble trajectory diagram.
In figure：
1-oil-out, 2-enter dissolved air water mouth, 3-enter sewage mouth, 4-sewage draining exit, 5-delivery port, 6-visor, 7-people
Hole, 8-electric flocculation pond, 9-battery lead plate, 10-upper cover, 11-hydraulic cyclone cylinder, 12-air supporting cylinder, 13-taper are received
The draw, 14-low head, 15-blow-off pipe, 16-water inlet pipe, 17-cloth dissolved air water pipe.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in detail embodiment, is related to the utility model to containing greasy dirt
The novelty of method for treating water, is belonged within the scope of protection of the utility model.
As shown in figure 1, oil-polluted water is sent into electric flocculation pond 8, sewage is entered by battery lead plate 9 by lifting pumped after pressurization
Row electrolysis, produce complex compound absorption oil droplet；Sewage containing cotton-shaped complex compound flows into hydraulic cyclone cylinder 11, carries out cyclonic separation,
And remove the floccule in water and bulky grain oil droplet；Sewage after initial gross separation enters air supporting cylinder 12, carries out dissolved air flotation.This
Method can effectively remove the impurity such as oil droplet, silt particle, colloid, dissolved organic matter and the heavy metal ion in oil-polluted water, finally
Obtain water purification.
As shown in Figures 2 and 3, electric flocculation pond 8 is rectangular shape, enters sewage mouth 3 installed in the both sides of air supporting cylinder 12
Put, the outlet of reaction tank is connected by water inlet pipe 16 with hydraulic cyclone cylinder.Preferably, positive electrode plate and negative electrode plate are adopted
With aluminium sheet, arranged vertically along water inlet direction, adjacent plate is spaced about 25~35mm, and electrode thickness is not less than 5mm.
As described in Figure 4, the sewage containing flco is hydraulic cyclone cylinder into inner cylinder, and hydraulic cyclone cylinder 11 is arranged on reaction
Tank is air supporting cylinder centre position, inner cylinder upper end open, and has certain distance apart from oil-out 1 at the top of tank body；Cylinder use to
On have the truncated conical shapes of 5 ° of enlargings, be provided with two tangential water inlets on the downside of cylinder；Inner cylinder lower end connects conical converging 13, finally
Connect tank base sewage draining exit 4.
Larger silt particle particle can be directly discharged into sewage draining exit 4 by blow-off pipe 15 in sewage, periodically open the blowdown of tank base
Mouthful.Tangentially enter because the diameter of hydraulic cyclone cylinder 11 is smaller, and by two water inlet pipes 16, it is ensured that oil-polluted water revolves at a high speed
Stream, eddy flow, which produces centrifugal force, makes the flco with oil droplet be migrated to vortex core, the position of upper cover 10 is finally floated up to, by fuel-displaced
Mouth 1 is discharged.
Sewage after initial gross separation enters air supporting cylinder 12.Air supporting cylinder is cylinder, and upper cover 10, upper envelope are installed in upper end
Leave oil discharge outlet 1 in head center；Installation cloth dissolved air water pipe 17, the uniform pore openings above pipeline among air supporting cylinder；Air supporting cylinder
Low head 14 is installed in body lower end, and sewage draining exit 4 is left in low head center, and is discharged after converging with inner cylinder blow-off pipe 15, lower envelope
Head is provided with delivery port 5.
Polyhydroxy base complex caused by electric flocculation effect can effectively absorb the impurity such as oil droplet, colloidal solid with microbubble, and
The top of upper cover 10 is carried it into using buoyancy, tank body is discharged by oil-out 1；Silt particle particle into outer barrel can also be settled down to tank
Body bottom, discharged by sewage draining exit 4.Water after processing is flowed out by bottom delivery port 5, and delivery port 5 keeps a spacing with sewage draining exit 4
From to avoid it from sucking silt particle particle.
Visor 6, manhole 7 are offered on the air supporting cylinder 12 of tank body described in the utility model embodiment, is easy to maintenance of equipment
With cleaning.It is all to leave flange, the pipe-line system of conveniently accessible processing water with ft connection structural tube.
Claims (9)
- A kind of 1. efficient oil-contained waste water treatment device, it is characterised in that：Including electric flocculation pond, the gentle floating drum of hydraulic cyclone cylinder Body；Upper cover is installed in the upper end of the air supporting cylinder, and oil discharge outlet is set on the upper cover；The lower end peace of the air supporting cylinder End socket is loaded, the low head sets sewage draining exit and delivery port；Set on the air supporting cylinder into dissolved air water mouth；In air supporting cylinder Portion is provided with cloth dissolved air water pipe；The cloth dissolved air water pipe with it is described enter dissolved air water mouth be connected；The hydraulic cyclone cylinder is installed in air supporting cylinder, hydraulic cyclone cylinder lower end connection collapsible tube, collapsible tube with it is described Sewage draining exit connects；Hydraulic cyclone cylinder upper end open, and have distance with air supporting barrel upper seal head；Symmetrically set on hydraulic cyclone cylinder It is equipped with tangential water inlet；Air supporting cylinder, delivery port and the tangential water inlet on hydraulic cyclone cylinder in the electric flocculation pond are run through in the electric flocculation pond Connection, the water inlet in electric flocculation pond are used for into sewage.
- 2. efficient oil-contained waste water treatment device according to claim 1, it is characterised in that：The electric flocculation pond includes shell Body, positive electrode plate and negative electrode plate, the positive electrode plate and negative electrode plate are detachably arranged in enclosure interior, the positive electrode Plate and negative electrode plate are perpendicular to the arrangement of water inlet direction, and adjacent plate spacing is 25~35mm, and electrode thickness is not less than 5mm.
- 3. efficient oil-contained waste water treatment device according to claim 2, it is characterised in that：The positive electrode plate and negative electricity Pole plate is aluminium sheet.
- 4. efficient oil-contained waste water treatment device according to claim 1, it is characterised in that：The electric flocculation pond is rectangular Shape.
- 5. efficient oil-contained waste water treatment device according to claim 1, it is characterised in that：The hydraulic cyclone cylinder Upper end is upward 5 ° of flaring structure.
- 6. efficient oil-contained waste water treatment device according to claim 1, it is characterised in that：Have on the cloth dissolved air water pipe There is uniform perforate.
- 7. efficient oil-contained waste water treatment device according to claim 1, it is characterised in that：On the hydraulic cyclone cylinder Multiple tangential water inlets are symmetrically arranged with, the quantity in the electric flocculation pond is corresponding with the quantity of tangential water inlet.
- 8. efficient oil-contained waste water treatment device according to claim 1, it is characterised in that：The collapsible tube is taper Collapsible tube.
- 9. efficient oil-contained waste water treatment device according to claim 1, it is characterised in that：Set on the air supporting cylinder There are visor and manhole；The sewage outfalls setting is in low head center, and the horizontal level of the delivery port is higher than low head Horizontal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621379440.3U CN206624732U (en) | 2016-12-15 | 2016-12-15 | A kind of efficient oil-contained waste water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621379440.3U CN206624732U (en) | 2016-12-15 | 2016-12-15 | A kind of efficient oil-contained waste water treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN206624732U true CN206624732U (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621379440.3U Expired - Fee Related CN206624732U (en) | 2016-12-15 | 2016-12-15 | A kind of efficient oil-contained waste water treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746048A (en) * | 2016-12-15 | 2017-05-31 | 西安思坦环境科技有限公司 | A kind of efficient oil-contained waste water treatment device and method |
| CN110482635A (en) * | 2019-09-16 | 2019-11-22 | 陕西海默油田服务有限公司 | A kind of oil gas field sewage treatment fluid-tight cyclone air-flotation device |
-
2016
- 2016-12-15 CN CN201621379440.3U patent/CN206624732U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746048A (en) * | 2016-12-15 | 2017-05-31 | 西安思坦环境科技有限公司 | A kind of efficient oil-contained waste water treatment device and method |
| CN110482635A (en) * | 2019-09-16 | 2019-11-22 | 陕西海默油田服务有限公司 | A kind of oil gas field sewage treatment fluid-tight cyclone air-flotation device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20191215 |