CN109626618A - Recirculating fluidized bed oil water separator - Google Patents
Recirculating fluidized bed oil water separator Download PDFInfo
- Publication number
- CN109626618A CN109626618A CN201811611800.1A CN201811611800A CN109626618A CN 109626618 A CN109626618 A CN 109626618A CN 201811611800 A CN201811611800 A CN 201811611800A CN 109626618 A CN109626618 A CN 109626618A
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- riser
- inlet
- outlet
- fluidized bed
- comer
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
Abstract
The present invention relates to a kind of recirculating fluidized bed oil water separators, including riser, the bottom of the riser is provided with inlet, the inlet is connected to fluid reservoir, and a feed liquor distribution grid is provided with above the inlet, it is stacked with several oil suction particles on the feed liquor distribution grid, and is provided with feed inlet and outlet and feedback outlet on the side wall of the riser, the feed inlet and outlet and feedback outlet are respectively positioned on the top of the feed liquor distribution grid；Down-comer, the top of the down-comer are equipped with a liquid and consolidate cyclone separator, which consolidates cyclone separator and be connected to the top of riser by connecting tube, and the top overflow port which consolidates cyclone separator forms the first liquid outlet；Feed back pipe, one end of the feed back pipe are connected to the bottom of down-comer, and the other end is connected to feedback outlet, and the second liquid outlet is provided on feed back pipe.The present invention consolidates the centrifugal action of cyclone separator by the suction-operated and liquid of oil suction particle, and the secondary separation of water-oil phase may be implemented, improve the efficiency of water-oil separating.
Description
Technical field
The present invention relates to oily water separation technique fields, and in particular to a kind of recirculating fluidized bed oil water separator.
Background technique
To oil field mining liquid and chemical industry oily wastewater carry out water-oil separating be the main problem that faces of petrochemical enterprise it
One.There are three types of the water-oil separating modes generallyd use, one is using the density contrast between grease, using the sedimentation of Gravity Separation
Mode；The second is acted on by centrifugal force, it is different with the inertia of water using oil, inside and outside two circulations are formed, to realize separation；
The third is making oil-water emulsion by demulsification, aggregation and sedimentation, Jin Ershi using the effect of electric field force using electric field separates principle
Existing oil is separated with water.
In the key link that petroleum, chemical industry water-oil separating are production, and existing oil water separator is deposited at present
Low efficiency, operating cost is high, structure is complicated the disadvantages of, especially for the emulsification higher oil-water mixture of degree, by mesh
Preceding existing oily water separating equipment carries out separation and has the following problems: first is that lower by mechanical movement separative efficiency；Second is that logical
The effect of the outfield forces such as increase electric field or magnetic field is crossed, so that separation costs are higher；Third is that reducing interface by introducing demulsifier
Power, auxiliary mechanical movement, which improves separative efficiency, will also result in environmental pollution while increasing cost.
At present in oilfield development process, it is usually added into the oil displacement agents such as polymer and surfactant and carries out oil exploitation, make
Obtaining Produced Liquid is in stable emulsification oil condition, will lead to the oil mixing with water in either oil field mining liquid or chemical engineering sewage in this way
Object is all difficult to reach ideal separative efficiency by traditional mechanical system, thus to efficient, low energy consumption water-oil separating skill
The demand of art and equipment seems especially urgent.
Fluidized bed is the typical consersion unit of chemical field, and main working process is: when having fluid to pass through in solid particle
When, as fluid velocity is gradually increased, solid particle setting in motion, and between solid particle and solid particle and liquid it
Between, act between each other it is increasing, when flow velocity reaches certain value, the phenomenon that solid particle shows similar fluid state,
This phenomenon is known as fluidization.Current fluidized bed is usually applied to technical field of boiler combustion, such as CN2667319 and
Fluidized-bed combustion boiler structure disclosed in CN202884903U, inventor has found that fluidization is applied to water-oil separating
Technical field has unexpected technical effect to the sewage treatment of the emulsification oil condition of grease difficulty separation, and basic herein
On traditional fluidized bed is improved, be suitable for water-oil separating field.
Summary of the invention
For the defects in the prior art, the technical problem to be solved in the present invention is to provide a kind of recirculating fluidized bed greases point
From device, the centrifugal action in fluidization and cyclone separator in riser can make grease efficiently separate.
One of to solve above-mentioned technical problem, the present invention provides a kind of recirculating fluidized bed oil water separator, including one mentions
Riser is arranged along the vertical direction, the bottom of the riser is provided with inlet, which is connected to fluid reservoir, and at this
It is provided with a feed liquor distribution grid above inlet, several oil suction particles are stacked on the feed liquor distribution grid, and in the promotion
Feed inlet and outlet and feedback outlet are provided on the side wall of pipe, the feed inlet and outlet and feedback outlet are respectively positioned on the upper of the feed liquor distribution grid
Side；One down-comer is arranged in parallel with the riser, and the top of the down-comer is equipped with a liquid and consolidates cyclone separator, which revolves admittedly
The arrival end of stream separator is connected to the top of the riser by a connecting tube, which consolidates the top overflow of cyclone separator
Mouth forms the first liquid outlet；One feed back pipe, one end of the feed back pipe are connected to the bottom of the down-comer, the other end with described time
Material mouth connection, and the second liquid outlet is provided on the feed back pipe；Wherein, the first valve is provided at the feed inlet and outlet
Door, is provided with the second valve at second liquid outlet.
In the present invention, oil water mixture is stored in fluid reservoir, and enters riser via inlet and feed liquor distribution grid
Interior, oil suction particle flows up in riser under the carrying of oil water mixture, and fluidized state, oil suction particle and oil is presented
Aqueous mixtures come into full contact with and mix, so that oil is mutually adhered to absorption particle surface, realize the first separation of grease；It is being promoted
The liquid-solid two-phase flowed in pipe, which further passes through connecting tube and flows to liquid, to be consolidated in cyclone separator, and the phase of liquid-solid two-phase is further strengthened
Interaction has carried out secondary separation to water-oil phase, while having been acted on by centrifugal force and separating liquid-solid two-phase, treated big
Most waste liquids consolidate the first liquid outlet outflow on cyclone separator top from liquid, and are collected；A small amount of remaining waste liquid and suction
Oil particles enter in down-comer together, are further contacted and are mixed in the downcomer, and remaining liquid can be from feed back pipe
On the discharge of the second liquid outlet, and the oil suction particle for being stained with greasy dirt flow back into riser by feed back pipe, is discharged by feed inlet and outlet.
The oil suction particle for sticking oily phase separates oil with oil suction particle, the crude oil isolated can recycle by heat treatment.
It can be seen that recirculating fluidized bed oil water separator of the invention, consolidates cyclone separator by the suction-operated of oil suction particle and liquid
Centrifugal action, the secondary separation of water-oil phase may be implemented, improve the efficiency of water-oil separating.
Preferably, several granule density fibre-optical probes, the granule density are provided in the riser and down-comer
Fibre-optical probe is electrically connected with granule density monitor.Granule density fibre-optical probe can be to the oil suction in riser and down-comer
The flow regime of grain is monitored.
Preferably, air inlet is offered on the side wall of the riser, which is connected to air compressor, and
A gas flowmeter is equipped between the air inlet and air compressor；The air inlet is located at the inlet and feed liquor distribution grid
Between, and third valve is provided at the air inlet.According to the testing result of granule density monitor, in bed resistance mistake
Greatly, in the case that particle aggregation and feed back are unsmooth, third valve is opened, is filled with gas, into riser to improve oil suction
The flow regime of grain, so that oil suction particle comes into full contact with oil water mixture, to improve water-oil separating efficiency.
Preferably, the feed back pipe gradually tilts upwards along the direction far from the riser, then oil suction particle is in gravity
Under the action of can smoothly be back in riser.
Preferably, a check valve is provided in the feed back pipe, the arrival end of the check valve is close to the down-comer, out
Mouth end is close to the riser, and second liquid outlet is between the check valve and down-comer.The setting of check valve, can
It is blowed back into down-comer with the oil water mixture and oil suction particle that effectively prevent in riser.
Preferably, the flow direction between the inlet and fluid reservoir along liquid is disposed with the pump housing and liquid flow
Meter.
Preferably, the oil suction particle is made of heat resistant resin material, and is coated in the outer surface of the oil suction particle
Oleophyllie hydrophobic coating.
Preferably, the diameter of the oil suction particle is 0.5mm-3mm, so that oil suction particle is both beneficial to fluidisation energy phase simultaneously
Pair subtract less granular number.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is one of the structural schematic diagram of the recirculating fluidized bed oil water separator of the embodiment of the present invention；
Fig. 2 is the second structural representation of the recirculating fluidized bed oil water separator of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the feed liquor distribution grid of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the check valve of the embodiment of the present invention.
Appended drawing reference:
1- riser；2- down-comer；3- liquid consolidates cyclone separator；4- connecting tube；5- feed back pipe；6- fluid reservoir；7- waste liquid
Tank；8- granule density monitor；9- air compressor；10- check valve；
101- inlet；102- feed liquor distribution grid；103- oil suction particle；104- feed inlet and outlet；105- feedback outlet；106- into
Port；The first liquid outlet of 301-；The second liquid outlet of 501-；The 601- pump housing；602- fluid flowmeter；801- granule density optical fiber is visited
Head；901- gas flowmeter；1001- arrival end；The outlet end 1002-；1003- valve body；1004- spool；1005- spring；1006-
Baffle；1007- via hole.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
As depicted in figs. 1 and 2, present embodiment discloses a kind of recirculating fluidized bed oil water separators, including along the vertical direction
The riser 1 and down-comer 2 of setting are provided with inlet 101 in the bottom of riser 1, are provided in the top of inlet 101
One feed liquor distribution grid 102 (refers to Fig. 3), which is provided with several through-holes, in the feed liquor point in netted
Accumulation has several oil suction particles 103 on fabric swatch 102, which is made of heat resistant resin material, in the oil suction particle
103 outer surface is coated with oleophyllie hydrophobic coating, and feed inlet and outlet 104 and feedback outlet are provided on the side wall of riser 1
105, the feed inlet and outlet 104 and feedback outlet 105 are respectively positioned on the top of feed liquor distribution grid 102；The top of down-comer 2 is solid equipped with a liquid
Cyclone separator 3, the arrival end which consolidates cyclone separator 3 are connected to the top of riser 1 by a connecting tube 4, down-comer 2
Bottom be connected to the feedback outlet 105 on riser 1 by a feed back pipe 5, and the feed back pipe 5 is along the direction of separate riser 1
Gradually inclination upwards.
Above-mentioned inlet 101 is connected to fluid reservoir 6, and along the flow direction of liquid between inlet 101 and fluid reservoir 6
It is disposed with the pump housing 601 and fluid flowmeter 602；In the present embodiment, oil water mixture is stored in fluid reservoir 6, and via
Inlet 101 and feed liquor distribution grid 102 enter in riser 1, and oil suction particle 103 is being promoted under the carrying of oil water mixture
It is flowed up in pipe 1, fluidized state is presented, oil suction particle 103 and oil water mixture come into full contact with and mix, so that oil mutually adheres to
In absorption particle surface, the first separation of grease is realized；The liquid-solid two-phase flowed in riser 1 further passes through connecting tube
4, which flow to liquid, consolidates in cyclone separator 3, further strengthens the interaction of liquid-solid two-phase, has carried out secondary separation to water-oil phase,
It is acted on simultaneously by centrifugal force and separates liquid-solid two-phase, treated most of waste liquids consolidate 3 top of cyclone separator from liquid
Overflow port outflow, the overflow port form the first liquid outlet 301, and the wastewater collection being discharged from first liquid outlet 301 is in waste liquid tank 7
In；A small amount of remaining waste liquid and oil suction particle 103 enter in down-comer 2 together, carried out in down-comer 2 further contact and
Mixing, remaining liquid can be discharged from the second liquid outlet 501 on feed back pipe 5, which is set to feed back pipe 5
On side wall, the liquid of discharge can also be collected together in waste liquid tank 7, by the waste liquid sample examination in waste liquid tank 7, can measure separation
Efficiency；And the oil suction particle 103 for being stained with greasy dirt flow back into riser 1 by feed back pipe 5, is discharged by feed inlet and outlet 104.Stick oil
The oil suction particle of phase separates oil with oil suction particle 103, the crude oil isolated can recycle by heat treatment.
In the present embodiment, the particle diameter distribution of oil suction particle 103 is 0.5mm-3mm, density 1400-1800kg/m3, oil suction
The oleophyllie hydrophobic coating on 103 surface of particle is specially polyurethane foam and polystyrene synthetic.In traditional fluidized bed
The partial size of particle is to be selected according to geldart granules method, and geldart granules method is directed to gas-solid two
Phase, wherein the particle diameter distribution of B class particle is 0.2mm-2mm, it is contemplated that liquid is stronger to the rolling action of particle, the present embodiment
The diameter for suitably increasing oil suction particle 103, making oil suction particle both is beneficial to fluidize the opposite reduction oil suction particle of energy simultaneously
Number can also select the diameter of oil suction particle to be distributed according to specific practical operation condition in practice, and oil suction particle 103
Piling height and voidage can carry out different settings according to different operating conditions.
Consolidate in cyclone separator 3 in liquid, since there are two cyclone circulatings to flow for density contrast, outer circulation is that density is biggish
The oil suction particle 3 of oily phase is adhered to, interior circulation is the lesser waste water of density, the pressure difference according to inner-outer circulation, it can be ensured that big portion
Waste liquid is divided to export discharge by the overflow on top, it, can also be by adjusting the change liquid of fluid flowmeter 602 if drain is unsmooth
Body flow velocity ensures that most of waste liquids are flowed into waste liquid tank 7；It is liquid-solid circulating fluidized that the liquid of the present embodiment, which consolidates cyclone separator 3,
The common structure of bed, specifically can be with reference to hydrocyclone structure disclosed in CN108219882A, and this will not be repeated here.
In the present embodiment, it is provided with the first valve at above-mentioned feed inlet and outlet 104, to control the entrance of oil suction particle 103
And discharge, it is provided with the second valve at the second liquid outlet 501, in order to the discharge of remaining waste liquid, while preventing oil suction particle 103
It is discharged from second liquid outlet 501.
Further, it is respectively set in above-mentioned riser 1 and down-comer 2 there are three granule density fibre-optical probe 801, it should
Granule density fibre-optical probe 801 is electrically connected with granule density monitor 8, and offers air inlet on the side wall of riser 1
106, which is located in the liquid inlet between 101 and feed liquor distribution grid 102, and is provided with third valve at the air inlet 106
Door；Above-mentioned air inlet 106 is connected to air compressor 9, and a gas is equipped between the air inlet 106 and air compressor 9
Flowmeter 901.When fluidizing bed operating, granule density fibre-optical probe 801 detects the flow regime of oil suction particle 103, in bed
Resistance is excessive, particle aggregation and feed back it is unsmooth in the case where, open third valve, be filled with gas into riser 1, to improve
The flow regime of oil suction particle, so that oil suction particle comes into full contact with oil water mixture, to improve water-oil separating efficiency.
Granule density fibre-optical probe 801 and granule density monitor 8 in the present embodiment are the common of traditional fluidized bed
Part, specifically can be with reference to fibre-optical probe and concentration monitor disclosed in CN104383719B.
Further, with reference to Fig. 4, a check valve 10 is provided in feed back pipe 5, the arrival end 1001 of the check valve 10 leans on
Nearly down-comer 2, outlet end 1002 is provided with close to riser 1, and between the arrival end of check valve 10 1001 and down-comer 2
The second liquid outlet 501 is stated, down-comer 2 is blowed back into the oil water mixture and oil suction particle 103 that effectively prevent in riser 1
It is interior.Specifically, which includes valve body 1003, spool 1004 and spring 1005, and spool 1004 is the annulated column of open at one end
Shape, sliding are threaded through in valve body 1003, and the side close to arrival end 1001 is closely abutted with the inner wall of valve body 1003, spring
1005 one end is connected to the end of spool 1004, and the other end is connected on a baffle 1006, is additionally provided in valve body 1003
For limiting the retaining ring of 1006 axial position of baffle；A groove, the side wall of spool 1004 are provided on the inner wall of valve body 1003
On be provided with several via holes 1007, which is located in groove, when oil suction particle 103 from arrival end 1001 enter valve body
When in 1003, the movement of spool 1004 will push, at this point, oil suction particle 103 can be via between spool 1004 and valve body 1003
It enters in groove at gap, and is entered inside spool 1004 from via hole 1007, and finally flowed out from outlet end 1002；When
When oil suction particle 103 enters valve body 1003 from outlet end 1002, it can be intercepted at groove, and can not be arranged from arrival end 1001
Out.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses, should all cover within the scope of the claims and the description of the invention.
Claims (8)
1. a kind of recirculating fluidized bed oil water separator characterized by comprising
One riser, is arranged along the vertical direction, and the bottom of the riser is provided with inlet, and the inlet and fluid reservoir connect
It is logical, and a feed liquor distribution grid is provided with above the inlet, it is stacked with several oil suction particles on the feed liquor distribution grid, and
Feed inlet and outlet and feedback outlet are provided on the side wall of the riser, the feed inlet and outlet and feedback outlet are respectively positioned on the feed liquor point
The top of fabric swatch；
One down-comer is arranged in parallel with the riser, and the top of the down-comer is equipped with a liquid and consolidates cyclone separator, which revolves admittedly
The arrival end of stream separator is connected to the top of the riser by a connecting tube, which consolidates the top overflow of cyclone separator
Mouth forms the first liquid outlet；
One feed back pipe, one end of the feed back pipe are connected to the bottom of the down-comer, and the other end is connected to the feedback outlet, and
The second liquid outlet is provided on the feed back pipe；
Wherein, it is provided with the first valve at the feed inlet and outlet, is provided with the second valve at second liquid outlet.
2. recirculating fluidized bed oil water separator according to claim 1, it is characterised in that:
Several granule density fibre-optical probes are provided in the riser and down-comer, the granule density fibre-optical probe with
Grain concentration monitoring device electrical connection.
3. recirculating fluidized bed oil water separator according to claim 2, it is characterised in that:
Offer air inlet on the side wall of the riser, which is connected to air compressor, and the air inlet with
A gas flowmeter is equipped between air compressor；
The air inlet is provided with third valve between the inlet and feed liquor distribution grid at the air inlet.
4. recirculating fluidized bed oil water separator according to claim 1, it is characterised in that:
The feed back pipe gradually tilts upwards along the direction far from the riser.
5. recirculating fluidized bed oil water separator according to claim 4, it is characterised in that:
A check valve is provided in the feed back pipe, the arrival end of the check valve is close to the down-comer, and outlet end is close to institute
Riser is stated, and second liquid outlet is between the check valve and down-comer.
6. recirculating fluidized bed oil water separator according to claim 1, it is characterised in that:
Flow direction between the inlet and fluid reservoir along liquid is disposed with the pump housing and fluid flowmeter.
7. recirculating fluidized bed oil water separator according to claim 1, it is characterised in that:
The oil suction particle is made of heat resistant resin material, and is applied in the outer surface of the oil suction particle coated with oleophyllie hydrophobic
Layer.
8. recirculating fluidized bed oil water separator according to claim 1, it is characterised in that:
The diameter of the oil suction particle is 0.5mm-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611800.1A CN109626618A (en) | 2018-12-27 | 2018-12-27 | Recirculating fluidized bed oil water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611800.1A CN109626618A (en) | 2018-12-27 | 2018-12-27 | Recirculating fluidized bed oil water separator |
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| Publication Number | Publication Date |
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| CN109626618A true CN109626618A (en) | 2019-04-16 |
Family
ID=66078308
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811611800.1A Pending CN109626618A (en) | 2018-12-27 | 2018-12-27 | Recirculating fluidized bed oil water separator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430400A (en) * | 2016-10-21 | 2017-02-22 | 郑州大学 | Externally circular three-phase fluidized bed reactor |
| CN110078164A (en) * | 2019-05-06 | 2019-08-02 | 东北石油大学 | Two-stage tandem fluidized bed oil water separator |
| CN110723775A (en) * | 2019-10-29 | 2020-01-24 | 陕西延长石油（集团）有限责任公司 | Coking wastewater purification treatment device and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430400A (en) * | 2016-10-21 | 2017-02-22 | 郑州大学 | Externally circular three-phase fluidized bed reactor |
| CN110078164A (en) * | 2019-05-06 | 2019-08-02 | 东北石油大学 | Two-stage tandem fluidized bed oil water separator |
| CN110723775A (en) * | 2019-10-29 | 2020-01-24 | 陕西延长石油（集团）有限责任公司 | Coking wastewater purification treatment device and method thereof |
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Application publication date: 20190416 |