CN209333256U - A kind of water-oil separating combined type filtering material - Google Patents
A kind of water-oil separating combined type filtering material Download PDFInfo
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- CN209333256U CN209333256U CN201821954437.9U CN201821954437U CN209333256U CN 209333256 U CN209333256 U CN 209333256U CN 201821954437 U CN201821954437 U CN 201821954437U CN 209333256 U CN209333256 U CN 209333256U
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Abstract
The utility model relates to a kind of water-oil separating combined type filtering materials, the water-oil separating combined type filtering material includes substrate filtering material and backing material, the substrate filtering material is set to above backing material, the top of the substrate filtering material has low-surface-energy adhesion material, and the surface adhesion of the low-surface-energy adhesion material has a nanometer microparticle film.The substrate filtering material is metal screen, filter cloth or filter paper, and micropore size range is 5-300 μm.The backing material is stainless steel support structure, pore diameter range 0.5-10mm.The diameter of the nanometer microparticle is 200nm-2 μm.Nanometer microparticle is adhered to substrate filtering material surface by way of dispersing natural subsidence in the utility model, realize the change and surface modification treatment to low surface energy coat surface micro-structure, the liquid-liquid diphase separation material that this method obtains has many advantages, such as that high-intensitive, surface wettability is controllable, long service life.
Description
Technical field
It is able to achieve liquid-liquid diphase separation using surface wettability the utility model relates to a kind of, in particular for water-oil separating
Combined type filtering material, by base material distribute rationally and the optimization of surface wettability modification scheme, it can be achieved that
At a high speed, the carry out water-oil separating of economic and reliable.It can be used for handling the rows such as petrochemical industry, machining, kitchen garbage improvement
The water-oil separating problem of industry, belongs to mechanical engineering, Surface Engineering, material science and field of environment engineering technology.
Background technique
Waste water containing lipid and oils is known as oily waste water, oil recovery, refinery(waste) water, the oil product transport of petroleum and petrochemical industry
And the leakage part occurred in storing process is the main path that oily wastewater generates.Oily waste water without timely and effective processing
Discharge will cause water quality deterioration, influence production estimation, endanger aquatic resources even atmosphere pollution finally influence human health.Contain
Low-boiling component is volatile into atmosphere in oily waste water, pollutes air.The mankind directly pass through the petroleum of breathing intake high concentration
Distillation will cause acute poisoning, and the accumulation of low concentration unwanted substance can also generate poisonous effect for a long time when concentration is lower, most
It may cause the damage of human lung, nervous centralis and other organs eventually.Oily waste water invade lake, river, inferior water
Domain will cause drinking water sources pollution and destroy.In addition, oil slick can completely cut off contact of the water body with air, cause under water body dissolved oxygen amount
Drop deteriorates water quality impact aquatile living environment and causes ecological disruption.It can stick into the oily substance in water body or soil
In the rhizome part of plant, absorption of the plant to nutrient in soil is influenced, Plant death can be seriously caused.If being filled with oily wastewater
The underproduction can be caused by irrigating crops, and harmful substance is enriched in crops finally also will affect human health.
As demand for energy increasingly increases, the high speed development of energy industry, Oil spills accident frequency in worldwide
Numerous appearance, in addition, can all be generated in the industrial production activities such as oil extraction, machining, dope dyeing, bio-pharmaceuticals a large amount of
Oil-water mixture, thereby result in pollution it is extremely serious.The day that living environment is required with the development and people of national economy
Benefit is paid attention to.The oily waste water that petrochemical industry, machining and other industries generate urgently is handled, based on oil substance and water
Difference existing for physics and chemical property, there has been proposed various water-oil phase isolation technics.Gravitational method is based on oily substance
Water-oil separating is realized in difference present on density with water, and since the relative density of oil, gas and water is different, component is certain
Oil water mixture just will form a certain proportion of oil, gas and water phase when system is in balance under certain pressure and temperature.
Heavier component drop can settle under gravity.Gravity type sedimentation separation equipment is set according to this basic principle
Meter.Gas floatation process is also known as floatation, mainly different with the density contrast of oil or chemical property according to water, former using gravitational settling
On the basis of reason, by micro-bubble is formed in water, it is domestic and international that carrying wadding grain, which floats up to liquid level, which makes a kind of method of Water warfare,
A kind of oil-water separation method furtherd investigate and constantly promoted.The condition of gas floatation process application is affixed to the bubble on oil droplet can
Form oil gas particle.Since the appearance of bubble increases density contrast between water and particle, and particle diameter is bigger than crude oil oil droplet, institute
To replace oil density the rate of climb can be made to significantly improve with grain density.Its major advantage is easy to operate, the disadvantage is that investment compared with
Greatly, land occupation is more, operating flexibility is small, oily resource is difficult to recycle, low separation efficiency, be easy to cause secondary pollution.Vortex method is to utilize
The difference of grease density makes high-speed rotating oil-water mixture generate different centrifugal force, so that oil be made to separate with water.Due to from
Heart equipment can achieve very high revolving speed, generate the centrifugal force for being up to hundred times acceleration of gravity, therefore centrifugation apparatus can be with
More thoroughly water-oil separating is opened, and only needs very short residence time and lesser equipment volume.Since centrifugation apparatus has
Moving component, daily maintenance is more difficult, therefore is only applied to the analytical equipment of laboratory and needs to reduce the place of occupied area.Benefit
A kind of capital equipment with centrifuge separation principle work is cyclone, it is used for will be as the liquid of continuous phase and as dispersed phase
Solid particless, drop or the bubble equipment that carries out physical separation.Density contrast between oil and water is bigger, and two-phase more can be easily separated.
Similar with the situation in gravitational field, under conditions of density contrast between the two phases is certain, the particle diameter of dispersed phase is bigger, in weight
The speed difference of inverted running is bigger between two-phase when reaching equilibrium state in the field of force, therefore more can be easily separated.The chemistry such as absorption
Method need to add a large amount of medicaments；And biofilter cost is too high, is adapted only to the processing of a small amount of oil-containing water.For oil refining, coking,
The oil-containing water of the industries such as steel is generally used Gravity Separation, flotation etc. because its treating capacity is big and the reasons such as oil concentration is higher
Oil-water separation method.Advantage is familiar with for colleague technical staff and operator, the disadvantage is that investment is larger, land occupation is more, operation bullet
Small, the oily resource of property is difficult to recycle, be easy to cause secondary pollution.Embrane method filter operation is simple, is a kind of separation method physically,
It will not cause secondary pollution therefore there is good prospect of the application.
Deficiency for existing oil-water separation method and in view of embrane method filtering in use the advantages of and deficiency
Place proposes the special wetability water-oil separating material based on composite construction form, and method herein is backing material, substrate mistake
Filter material material, point surface energy modification adhesion material and nanometer microparticle optimization design, which obtain, has high-intensitive, excellent surface wetting
The new oil water separating filter material of property and strainability.
Utility model content
The purpose of this utility model is that using the deficiency and limitation of material, base for existing embrane method oil-water separation method
In sandwich and nanometer microparticle surfaces modification optimization filtering material surface wettability, propose a kind of with special wetting
The water-oil separating combined type filtering material of property.The water-oil separating combined type filtering material be based on through low-surface-energy adhesion material with
And nanometer microparticle modification after special wettability realize physically separation, have separating effect it is significant, it is easy to operate, at
This is cheap, is easy to be engineered, does not bring the features such as secondary pollution, is expected to be used for oil exploitation, leaks in transportational process and each
Oily waste water treatment problem caused by each industry of row.
The technical solution of the utility model is as follows:
The utility model provides a kind of water-oil separating combined type filtering material, including substrate filtering material and fid
Material, the substrate filtering material are set to above backing material, and the top of the substrate filtering material is adhered to low-surface-energy
Material, the surface adhesion of the low-surface-energy adhesion material have a nanometer microparticle film.
Preferably, the substrate filtering material is metal screen, filter cloth or filter paper, and micropore size range is 5-300 μm.
Preferably, the backing material is stainless steel support structure, pore diameter range 0.5-10mm.
Preferably, the nanometer microparticle film with a thickness of 1-5 micro-nano granules, the diameter of nanometer microparticle is
200nm-2μm。
Preferably, the low-surface-energy adhesion material with a thickness of 10-150 μm.
The utility model has advantages in that
1, water-oil separating combined type filtering material provided by the utility model is organically combined using multiple material: by fid
Material, substrate filtering material, low-surface-energy adhesion material and nano-particle modified material composition, the combined type filtering material are abundant
Each composition partial function is played, has many advantages, such as high-intensitive, high filtration performance.
2, low-surface-energy adhesion material is uniformly coated in substrate filtering material surface with surface in the utility model
Modified and adhesive attraction double effects can not only carry out protection to substrate filtering material and improve corrosion resistance and improve wetting
Effect, and by optimization paint ingredient and its proportion applied thickness can be controlled, and then realize to substrate filter material
The adjusting of blanking aperture size.
3, nanometer microparticle is adhered to substrate filtering material table by way of dispersion, natural subsidence in the utility model
Face, realization are modified to the surface of low surface energy coat (adhesion material) surface micro-structure, and by using different-grain diameter, difference
The microparticle of planform and different settled densities can realize the control to substrate filtering material surface wettability, it can be achieved that
Efficient quick carries out selectivity by realizing water-oil separating to the oily substance in oil water mixture.
4, the water-oil separating combined type filtering material and preparation method thereof provided by the utility model with special wetability,
With the distinguishing features such as easy to operate, low in cost, environmental-friendly, there is good future in engineering applications.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the composite screen of backing material and substrate filtering material composition；
Fig. 2 is adhesion material in surface formation coating schematic diagram；
Fig. 3 is nanometer microparticle deposition process schematic diagram.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
The utility model provides a kind of water-oil separating combined type filtering material, as shown in Figure 1-Figure 3, including substrate filter material
Material 2 and backing material 1, the utility model can be to backing material and micropores according to the actual condition of required processing oil water mixture
The substrate filtering material of structure is in optimized selection, and then optimizes separative efficiency.The substrate filtering material 2 be metal screen,
The porous filter materials such as filter cloth or filter paper, micropore size range are 5-300 μm, and the substrate filtering material of the pore diameter range is generally thick
Degree is in 0.1-0.5mm or so.The backing material 1 be the stainless steel support structure that pore diameter range is 0.5-10mm or be it is other not
The support framework structure of limiting aperture range, general thickness are 0.2-0.5mm or so.The substrate filtering material 2 is attached to branch
The top of timbering material 1, using backing material as support frame, since backing material 1 has certain intensity, backing material 1
It can enclose and be set as cylindrical shape, and substrate filtering material 2 can be attached to the outer surface of the backing material 1 of cylindrical shape, and in
The upper and lower opening direction of cylinder material is fixed；It can also be as shown in Figure 1 by high-intensitive backing material 1 and substrate filtering material
2 through sintering etc. modes be used as engagement means, formation composite filter material.The surface of the substrate filtering material 2 has low surface
Can adhesion material 3, there is the modified double action of bonding and surface, adjust the viscosity of low-surface-energy adhesion material 3 and solid
The component specific gravity for changing the time, adhesion material 3 can be controlled in parameters such as the thickness of 2 surface filming of substrate filtering material, low
The viscosity of surface energy adhesion material 3 is controlled by addition solvent or diluent, and the general weight percent of solvent or diluent is in 20-30%；Curing time
For the time of repose (crosslinking curing) of addition curing agent after mixing evenly, curing time is 5-15 minutes, and curing agent generally uses
(mass percent) is measured 5% to 15%；Brushing thickness when low-surface-energy adhesion material 3 forms a film is generally 10-150 μm.One
As low-surface-energy adhesion material 3 be paint.The thickness control that low-surface-energy adhesion material 3 as shown in Figure 2 forms coating can be to mistake
Filter material structure optimizes；There is certain hydrophobic oleophilic oil characteristic through low-surface-energy adhesive treated material and have
Binder function, the surface adhesion of the low-surface-energy adhesion material 3 have a nanometer microparticle layer 4, the thickness of nanometer microparticle layer 4
For 1-5 times of 5 diameter of nanometer microparticle, generally, it can be hydrophobicity titanium dioxide that the diameter of nanometer microparticle 5, which is 200nm-2 μm,
The nanometers microparticle such as silicon.It is that 200nm-2 μm of nanometer microparticle 5 divides in confined space by partial size when adhering to nanometer microparticle 5
Dissipate, made by way of natural subsidence its be coated with adhesion material 3 substrate filtering material surface complete absorption as shown in figure 3,
The nanometer deposition of microparticle 5 can modify the surface micro-structure of substrate filtering material 2, to advanced optimize substrate filter material
The surface wettability of material 2.
The preparation method of water-oil separating combined type filtering material in the utility model including the following steps:
Step 1: prepare backing material and substrate filtering material
Select the metal that there is the aperture of good rigidity intensity to be 0.5-10mm or other materials strainer as backing material,
Thickness is in 0.5-10mm, and as substrate filtering material, thickness exists the filter screen of the metal or other materials of selecting 5-300 μm of aperture
0.1-0.5mm by sintering etc. or the modes such as is mechanically fixed, substrate filtering material is set to the surface of backing material, formed
Composite structure.
Step 2: substrate filtering material surface is made to be evenly coated with adhesion material, thickness 10- in the way of spraying or impregnating
150 μm, preferably 10-50 μm when dipping, preferably 50-150 μm when spraying.When being added in adhesion material has curing agent, Gu
Agent is added and after mixing evenly, static one end time to increase the viscosity of adhesion material, then again using spraying or impregnating
Mode makes substrate filtering material surface be evenly coated with adhesion material.
Step 3: by the surface adhesion nanometer microparticle film of adhesion material, completion is prepared after solidifying adhesion material.
(compressed air pressure 0.4-0.8MPa, nozzle diameter are in the way of stirring of blowing in confined space
2mm), so that the nanometers microparticle such as hydrophobic silica that partial size is 200nm-2 μm disperses and is suspended in confined space, lead to
Crossing natural sedimentation and absorption makes substrate filtering material surface form nanometer particle film, so that obtaining has special wetting action
Water-oil separating combined type filtering material, the surface drying process of adhesion material is completed in confined space, surface drying time is generally
10min-60min.Then nanometer microparticle film will have been adhered to and taken out confined space, adhesive material thoroughly solidified, used
Different adhesion materials, curing time different from generally want 12-24h to complete thoroughly solidification.
The combined type water-oil separating filtering material prepared according to the method described above, because therefore high-intensitive backing material has
Good mechanical strength, low-surface-energy adhesion material can form complete covering on substrate filtering material surface, realize surface
Also substrate filtering material protect while modified and then improves the materials'use service life.The filter type is not by making base
The aperture of bottom filtering material is less than emulsion droplet diameter in oil water mixture and physically intercepts to realize, but passes through low-surface-energy
The surface of material and nanometer microparticle is modified to realize the removal that emulsified oil droplet is realized to oily substance selective absorption, therefore
The micropore size of substrate filtering material can be higher than other filtering materials, to guarantee under its rate of filtration performance condition, Neng Goushi
Now to the removal of trace impurity in oil water mixture.Furthermore the dewatering nano microparticle surfaces modification that this method is realized can be by nanometer
The advantages of microparticle is exposed outside, gives full play to nanometer microparticle surfaces physical and chemical performance, improves its special surface wetability,
It is wrapped up different from nanometer microparticle in the method that is scattered in corresponding resin by materials such as resins, ideal surface cannot be played and changed
Property effect.
The combined type water-oil separating filtration membrane technology proposed is described in further detail below with reference to example.
Embodiment 1
Select be 2mm with a thickness of 1mm, aperture high-strength fine steel mesh be backing material, select aperture be 10 μm, with a thickness of
100 μm of metal felt is substrate filtering material, and selecting the hydrophobic silica microballoon that partial size is 500nm is surface topography modification
Particle (nanometer microparticle).Two kinds of backing materials and substrate filtering material are formed into composite screen by way of sintering.It will answer
Conjunction strainer is immersed in fluorocarbon resin to be taken out after 20min, is suspended on silicon dioxide microsphere (within the 1min time) at once after taking-up
In Serpentine Gallery Pavilion, excess surface particle is taken out and is blown away after the solidification of fluorocarbon resin surface drying, is thoroughly solidified after taking out confined space,
Form the water-oil separating combined type filtering material with special wetability.Prepared water-oil separating combined type filtering material is used
In oil water mixture (diesel oil and water form oil water mixture after being mixed in the ratio of 1:10) separation, it can be achieved that being higher than 99%
Above separating effect.
Embodiment 2
Select with a thickness of 0.5mm, aperture 1mm, metal screen as backing material；Selecting aperture is 10 μm, thickness
Metal micro-holes filtering material for 100 μm is substrate filtering material, and repressed sintering forms composite junction network forming.Composite screen is soaked
Stain is suspended in the Serpentine Gallery Pavilion for the silicon dioxide microsphere that partial size is 500nm after 20min, after taking-up in organic siliconresin,
It takes out after 10min and solidifies at room temperature, form the water-oil separating combined type filtering material with special wetability.It will be prepared
For oil water mixture, (diesel oil forms oil after water is mixed in the ratio of 1:10 to above-mentioned water-oil separating combined type filtering material
Aqueous mixtures) it separates, it can be achieved that being higher than 99% or more separating effect.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of water-oil separating combined type filtering material, which is characterized in that described including substrate filtering material and backing material
Substrate filtering material is set to above backing material, and the top of the substrate filtering material has low-surface-energy adhesion material, institute
The surface adhesion for stating low-surface-energy adhesion material has a nanometer microparticle film.
2. water-oil separating combined type filtering material according to claim 1, which is characterized in that the substrate filtering material is
Metal screen, filter cloth or filter paper, micropore size range are 5-300 μm.
3. water-oil separating combined type filtering material according to claim 1, which is characterized in that the backing material is stainless
Steel support structure, pore diameter range 0.5-10mm.
4. water-oil separating combined type filtering material according to claim 1, which is characterized in that the nanometer microparticle film
With a thickness of 1-5 micro-nano granules, the diameter of nanometer microparticle is 200nm-2 μm.
5. water-oil separating combined type filtering material according to claim 1, which is characterized in that the low-surface-energy adheres to material
Material with a thickness of 10-150 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289251A (en) * | 2018-11-26 | 2019-02-01 | 北京揽山环境科技股份有限公司 | A kind of water-oil separating combined type filtering material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289251A (en) * | 2018-11-26 | 2019-02-01 | 北京揽山环境科技股份有限公司 | A kind of water-oil separating combined type filtering material and preparation method thereof |
| CN109289251B (en) * | 2018-11-26 | 2024-04-05 | 北京揽山环境科技股份有限公司 | Oil-water separation composite filter material and preparation method thereof |
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