CN102210954A - Solid-liquid separation composite filter board and preparation method thereof - Google Patents
Solid-liquid separation composite filter board and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a solid-liquid separation composite filter board and a preparation method thereof; the filter board is made from a separation membrane material, a matrix material and a shrinkage material; an upper separation membrane and a lower separation membrane are respectively composited on the outer surface of each of the upper matrix and lower matrix of the filter board, a liquid support channel is constructed between the upper matrix and the lower matrix, the separation membrane is formed by adding a nucleating agent and an active agent in the matrix material, and the shrinkage material is embedded in the separation membrane; and the matrix material comprises a polyolefin high-polymer material, a zeolites inorganic material, a hydrophilic agent, a coupling agent, a binder, an anticrustator and a dispersing agent. The filter board separation membrane is in composite molding with the matrix at one step; an antiscaling membrane is covered on the surface of granule materials of the matrix and used for the solid-liquid separation of the slurry or liquid, the through hole rate is high and the antiscaling function is good; the match of elasticity, strength and flexibility is proper, the yield of a filter cake is high, the weight of the filter board is light and the service life is long; and the filter board is in a hollow structure and has the advantages of simplicity and convenience in manufacturing process and convenience for mounting.
Description
Background technology
Ceramic filter is a kind of equipment that is used for Separation of Solid and Liquid, because the medium of Separation of Solid and Liquid is the filter of pottery, this core component ceramic filter plate is to contain small porous ceramics capillaceous.What its Separation of Solid and Liquid principle was used is the pore theory, according to the Kelvin law, as long as the capillary caliber is controlled at certain scope, just can reach needed capillary force, this moment, filter plate was full of liquid, and air can not pass through, under less vacuum action, the filter plate inner vacuum constantly raises, and the filter cake that the filter plate outside is sucked is more and more thicker, the liquid that flows into filter plate inside is constantly discharged by certain way, reaches continuous, Separation of Solid and Liquid purpose.Ceramic filter plate is formed through the special process manufacturing by matrix and skin covering of the surface, and skin covering of the surface belongs to inorganic microporous barrier, makes with hydrophilic material sintered alumina etc., and micro-pore diameter 1.5-2.9 μ m forms about capillary force 140kPa.When micropore capillary force during greater than micropore pressure at two ends difference, be full of water in the micropore, gas can not pass through micropore.
Though ceramic filter plate technology of preparing and technology are slightly had any different at present, but common feature is arranged all, the one, the material aspect, it must be hydrophilic requiring material in theory, substantially be that main body adds the auxiliary material formation with ceramic materials such as aluminium oxide at present, as No. 01114048.8 patent " Microporous Ceramic Filter Plate And Preparation Method " material be: " every micropore ceramic filter sheet comprises by granularity 40-500 μ m corundum and/or mullite and/or flint clay and/or carborundum and/or quartzy abrasive material and is the base layer formed of the ceramic particle of major ingredient and is the superficial layer that the ceramic particle of major ingredient is formed by granularity 0.5-25 μ m corundum and/or mullite and/or flint clay and/or carborundum and/or quartzy abrasive material; superficial layer is sprayed on the outer surface of base layer, and superficial layer is one or more layers ".The technology of patent No. 200610161533.3 " filter plate of porous ceramic of anti-low concentration hydrofluoric acid and manufacture methods " is: " it is aggregate that substrate adopts by high-purity alpha-type aluminum oxide electro-corundum that melting is made in the high-temperature electric arc stove; being equipped with the high purity nanometer alumina powder is binding material; to reduce firing temperature, improve the mechanical strength of substrate with the ceramic raw material mineralizer that does not contain silicon." use the problem that this class material can produce three aspects: the one, the material screening restriction condition is more.Material character is hydrophilic, and the capillary caliber must make the material range of choice narrow in certain scope in practice, transfers the hole to be limited in scope, and pore morphology, size, porosity and the control difficulty that distributes are big; The 2nd, film is seriously polluted, and mining ceramic filter plate major applications is under acid, alkaline stronger condition of work, and present ceramic material provides hotbed for fouling, and scale formation is very serious, becomes the principal element that influences its life-span.For eliminating this phenomenon, in equipment, adopted technical measures such as regular ultrasonic scale removal, pickling, but the film pollution is still very serious, main cause is determined by material character.Patent 201010125746.7 " manufacture process of ultrahigh molecular weight polyethylene (UHMWPE) filter plate " has proposed the material different with traditional material, makes ceramic filter plate with superhigh molecular weight polyethylene material, but purpose is only for alleviating the weight of ceramic filter plate.Because the ultra-high molecular weight polyethylene right and wrong are hydrophilic, when extracting drainage, also can suck a large amount of air in the filter plate work, reduce filter plate vacuum, task performance is descended, be difficult to reach instructions for use.
The 2nd, configuration aspects adopts mostly and forms matrix (skeleton) earlier, the structure of back spraying filter course on matrix.Matrix is obtained after bonding by two lamellar bodies, is hollow structure, and filter course is by obtaining at matrix surface spraying diffusion barrier.And the ceramic filter plate employing is that the single mode at matrix surface spraying diffusion barrier forms ceramic filter plate.This structure and technology make the diffusion barrier porosity extremely low, and the pore-size distribution difficulty is aligned.Simultaneously filter plate is a pottery, and hardness height, fragility are strong, in use, especially in the later stage in life-span, can be because filter opening be blocked filter plate content increased pressure and produce the explosion phenomenon, produce the difficult cleaning of fragment, change inconvenient problem, even stuck equipment can occur, burn out more serious problems such as motor.
The 3rd, the manufacture craft aspect, ceramic filter plate adopts injection forming in early days, as described in patent documentation such as U.S. Pat 4863656, US4981589 and Chinese patent 98111184.X number, it is the ceramic filter substrate that obtains having hollow structure by slip casting in the suction mould, and then applies the filtration top layer on its surface.At present technology developed into the burst die forming, with the filter of two involutory bonding acquisition hollow structures, as microporous ceramic filter plate as described in Chinese patent CN01114048.8 and the CN01241404.2, mix to stir by matrix material exactly and be molded into fan-shaped micropore ceramics monolithic, dry, involutory bonding, burn till, the spraying filter course, drier, burn till.Also have the integral die moulding process in addition, as Chinese patent 1486212A, the method is to make matrix form whole hollow structure for reaching, and puts into the supporting-core that can burn at a certain temperature in advance in matrix, the required hollow duct of the work that obtains.These technologies all are based upon on ceramic filter plate material and the architecture basics and produce, and purpose is: filter membrane has less, satisfactory aperture and the adjusting range of broad is arranged; There is higher porosity also to reach unanimity within the specific limits; Having preferably, mechanical strength satisfies the production needs; Stronger preventing membrane pollution ability is arranged to obtain long service life; Lower cost and repair and replacement convenience are arranged.
Summary of the invention
The objective of the invention is to overcome many defectives that above-mentioned prior art exists, provide a kind of and vacuum composite filter obvious difference, that be used for Separation of Solid and Liquid and preparation method thereof is arranged from material, structure and production technology and present ceramic filter plate, this filter is used for slurry or liquid Separation of Solid and Liquid, the through-hole rate height, has good good antiscale property function; Its elasticity, intensity, toughness coupling appropriateness, filter cake output is big, filter plate is in light weight, long service life; The once-combined moulding of filter material of main part, integral body are hollow structure, and manufacture craft is simple and direct, easy for installation.
The present invention and the obvious difference of ceramic filter plate structure at present: the one, prefabricated diffusion barrier semi-finished product with difference in functionality, when making filter plate with diffusion barrier and the once-combined moulding of matrix; The 2nd, at blapharoplast material surface parcel antiscale film.
The technical solution used in the present invention is for achieving the above object: a kind of Separation of Solid and Liquid composite filter, mainly make by separation membrane material, matrix material and shrinkage cavity material, the upper and lower outer surface of matrix of this filter is compounded with upper and lower diffusion barrier respectively, body plan has the liquid support passage between upper and lower matrix, it is characterized in that: described diffusion barrier is to be added with nucleator and activating agent in matrix material, and the shrinkage cavity material is mounted in the diffusion barrier, and described matrix material comprises:
1. polyolefin macromolecular material, this macromolecular material is: polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene, the high density polyethylene (HDPE) one or more combination in them;
2. inorganic material, this inorganic material is: modified zeolite, perlite, sepiolite, corundum, bead, diamond stone, carborundum, carbon black, diatomite, the bentonite one or more combination in them;
3. hydrophilizing agent, this hydrophilizing agent is: polyvinyl alcohol, polyvinylamine, polyethylene glycol, the cellulose acetate one or more combination in them;
4. coupling agent, this coupling agent is: cumyl peroxide, silane coupler, polyvinylpyrrolidone one or more combination in them;
5. binding agent, this binding agent is: sodium metasilicate, ptfe emulsion, the epoxy resin one or more combination in them;
6. scale preventative, this scale preventative is: ML, CP, the MDC one or more combination in them;
7. dispersant, this dispersant is: absolute ethyl alcohol.
The weight proportion of matrix material each component of the present invention is:
1. 80～300 purpose polyolefin macromolecular materials, 150～200 weight portions;
2. 150～300 purpose inorganic material, 50～120 weight portions;
3. hydrophilizing agent 18～30 weight portions;
4. coupling agent 2～10 weight portions;
5. binding agent 3～12 weight portions;
6. scale preventative 5～12 weight portions;
7. dispersant 150～300 weight portions.
The component of shrinkage cavity material of the present invention and weight proportion are:
1. the inorganic material of 100～350 orders, 150～220 weight portions; This inorganic material is: modified zeolite, perlite, sepiolite, corundum, bead, diamond stone, carborundum, carbon black, diatomite, the bentonite one or more combination in them;
2. the coupling agent of 8.0～15 weight portions; This coupling agent is: cumyl peroxide, silane coupler, polyvinylpyrrolidone one or more combination in them;
3. the dispersant of 100～180 weight portions, this dispersant is an absolute ethyl alcohol.
Nucleator of the present invention is potash, barium sulfate, calcium stearate, the adipic acid one or more combination in them, and consumption is 4.0～10 weight portions.
Activating agent of the present invention is a kind of or its combination in them of rare earth oxide, lithium chloride, vinyl silanes, and consumption is 0.5～6.5 weight portion.
The preparation method of Separation of Solid and Liquid composite filter of the present invention is characterized in that this method may further comprise the steps:
One, preparation matrix material
1) with the polyolefin macromolecular material of 80～300 orders, 150～200 weight portions, add the dispersant mixing of 150～300 weight portions, add 18～30 weight portion hydrophilizing agents again, the coupling agent of 2～10 weight portions reacted 10～20 minutes down in 90～120 ℃;
2) in the mixture of step 1), add 150～300 orders, 50～120 weight portion modified zeolites, bead class inorganic material, 3～12 weight portion binding agents, 5～12 weight portion scale preventatives were in 90～120 ℃ of following stirring reactions 1～2 hour;
3) to step 2) the gained mixture carries out vacuum filtration, be crushed to 150～300 orders obtains matrix material;
Two, preparation shrinkage cavity material
With 150～220 weight portions, 100～350 order perlites, modified zeolite class inorganic material, 8～15 weight portion coupling agents, place the absolute ethyl alcohol of 100～180 weight portions to be uniformly dispersed, in 90～120 ℃ of following stirring reactions 1～2 hour, again this compound is carried out vacuum filtration, is crushed to 180～350 orders and obtains the shrinkage cavity material;
Three, preparation diffusion barrier semi-finished product
1) get the matrix material for preparing of 120～200 weight portions, add the nucleator of 4～10 weight portions, the activating agent of 0.5～6.5 weight portion is uniformly dispersed in the dispersant of 70～120 weight portions, makes diffusion barrier liquid in 60～95 ℃ after mixing 1～3 hour;
2) with cast, be coated with and scrape or curtain coating, hot pressing mode are made diffusion barrier, the formation aperture is 50～100um, porosity 8～70%, the three-dimensional through hole diffusion barrier of thickness 0.2～1.5mm;
3) add the method for filling by machinery the shrinkage cavity material for preparing is mounted in the diffusion barrier, through the 1-20mpa that exerts pressure particulate is inlayed firmly again;
4) the edge grain diffusion barrier of the 3rd step preparation is inserted in the heating furnace, in 150～400 ℃, carry out shrinkage cavity under 1～1.5 hour condition, the shrinkage cavity back aperture is 0.05～20um, porosity 5～60%, and thickness 0.2～1.5mm obtains filter diffusion barrier semi-finished product for standby;
Four, preparation filter
----the liquid support passage--goes up matrix--, and upward the layer of structure of diffusion barrier is inserted corresponding material to lower substrate according to following diffusion barrier in mould; wherein upper and lower diffusion barrier adopts the diffusion barrier semifinished material; upper and lower matrix and liquid support passage adopt matrix material; the locking mould; pack into heating furnace or add in the heating kiln; under carbon dioxide or nitrogen protection, kept 3～5 hours down in 160～400 ℃, make composite filter.
The present invention has following characteristics and advantage: having broken through domestic and international ceramic filter filter media material can only be with the theory of hydrophilic materials such as aluminium oxide, tens kinds of the organic and inorganic materials that screen, optimization can be used as making vacuum multiple filter, develop diffusion barrier, antiscale film respectively, develop the multilayer film complex technique, stable controlled film form, size, porosity and distribution etc. and influenced the film properties parameter, made this film can be widely used in the Separation of Solid and Liquid of all kinds of concentrate.Have separation, anti-scaling function, characteristics such as function admirable, with low cost, long service life; Use the vacuum multiple filter, under same slurry and rotating speed, make filter cake thicken 1-2mm, improved the ore dressing ability; Reduce the film pollution probability, just alleviated filter plate filtering holes clogging, prolonged filter plate service life;
Be fit to the low concentration slurry filtration.Ceramic filter plate instructions for use regulation, separated pulp density can not be lower than 55%, is lower than this and requires the slurry filtration effect of concentration relatively poor.This product can be used for the ore pulp of concentration＞9%-70%, and separating effect is not poor yet under low concentration, has widened the product range of application; Membrane module making, film production and anti-pollution film moulding are once finished, and have saved the energy greatly, have reduced cost, have improved film properties, and technical indicator obviously improves, and cost reduces significantly; Filter plate flexibility, the design of light body have strength and toughness preferably, and weight is 1/3 of existing ceramic filter plate, have avoided filter plate to block the problem that aspects such as the stuck equipment that produces of breaking, maintenance inconvenience are brought because of filter opening in using.
Description of drawings
Fig. 1 is the composite filter structural representation.Among the figure: 1, go up diffusion barrier; 2, go up matrix; 3, liquid support passage; 4, lower substrate; 5, following diffusion barrier; 6, installing hole; 7, the mouth of a river.
The specific embodiment
The invention will be further described below by embodiment.
Embodiment 1:
1, preparation matrix material: add polyvinyl alcohol 17g, cellulose acetate 10g, cumyl peroxide 2.4g on dispersion, the mixed base with 100 order polytetrafluorethylepowder powder 170g, in the 270g absolute ethyl alcohol, reacted 10 minutes down in 90 ℃;
In said mixture, add 150 order white fused alumina 65g, 150 order diatomite 25g, sodium metasilicate 2g, ptfe emulsion 4g, scale preventative MDC 6g were through 95 ℃ of stirrings, reaction 1.5 hours; To reaction mass carry out vacuum filtration, drying and crushing to 150～300 orders obtain matrix material;
2, preparation shrinkage cavity material: 100 purpose modified zeolite 150g, carborundum powder 50g are disperseed in the 180g absolute ethyl alcohol, add silane coupler 12g on the mixed base, reacted 1 hour down at 95 ℃; To reaction mass carry out vacuum filtration, drying and crushing to 180～350 orders obtain the shrinkage cavity material;
3, produce the diffusion barrier semi-finished product: get the 150g matrix material, calcium stearate 3g, adipic acid 2g, rare earth oxide 0.2g, vinyl silanes 1g joins in the 105g absolute ethyl alcohol, produces diffusion barrier liquid after mixing 1 hour under 90 ℃; With cast, be coated with and scrape or modes such as curtain coating, hot pressing are made diffusion barrier, the formation aperture is 50～100um, porosity 8～70%, the three-dimensional through hole diffusion barrier of thickness 0.2～1.5mm; Add the method for filling by machinery the shrinkage cavity material is mounted in the diffusion barrier, (1～20mpa) reaches particulate inlays firm purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, kept 1.2～1.5 hours down at 340～350 ℃ by adjusting pressure and firing temperature, make the aperture of shrinkage cavity be controlled at 0.05～20um, porosity 5～60%, thickness 0.2～1.5mm, it is standby to obtain filter diffusion barrier semifinished material;
4, produce filter: referring to accompanying drawing, in mould, insert diffusion barrier semifinished material (following diffusion barrier 5)～matrix material (lower substrate 4)～liquid support passage 3 (matrix material)～matrix material (going up matrix 2)～diffusion barrier semifinished material (going up diffusion barrier 1) respectively according to following layer of structure, the locking mould, the heating furnace or add in the heating kiln of packing into; Add carbon-dioxide protecting gas, under 390～400 ℃ of conditions, kept 3.5 hours, produce filter; The filter of making is finished filter through technologies such as shaping, cleanings and is made.
Embodiment 2:
1, preparation matrix material: add polyvinylamine 25g, polyvinylpyrrolidone 2.0g, silane coupler 4.5g on dispersion, the mixed base with 120 order polytetrafluorethylepowder powder 170g, in the 270g absolute ethyl alcohol, reacted 10 minutes down in 90 ℃;
Add 150 order perlite 34g, bead 34g in said mixture, ptfe emulsion 4.0g, epoxy resin 2.5g, scale preventative MDC 5.0g, CP 3.0g were in 95 ℃ of following stirring reactions 1.5 hours; To reaction mass carry out vacuum filtration, drying and crushing to 150～300 orders obtain matrix material;
2, preparation shrinkage cavity material: with embodiment 1.
3, produce the diffusion barrier semi-finished product: get the 150g matrix material, barium sulfate 2g, potash 5g, rare earth oxide 0.5g joins in the 85g absolute ethyl alcohol, produces diffusion barrier liquid after mixing 1 hour under 90 ℃; With cast, be coated with and scrape or modes such as curtain coating, hot pressing are made diffusion barrier, the formation aperture is 50～100um, porosity 8～70%, the three-dimensional through hole diffusion barrier of thickness 0.2～1.5mm; Add the method for filling by machinery the shrinkage cavity material is mounted in the diffusion barrier, (1～20mpa) reaches particulate inlays firm purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, by adjusting pressure and firing temperature 1.2～1.5 hours 340～350 ℃ of following retention times, the aperture of control shrinkage cavity is at 0.05～20um, porosity 5～60%, thickness 0.2～1.5mm obtains filter diffusion barrier semi-finished product for standby;
4, produce filter: with producing the filter step among the embodiment 1.
Embodiment 3:
1, preparation matrix material: with 100 order ultra-high molecular weight polyethylene powder 85g, high-density polyethylene powder 85g, in the 270g absolute ethyl alcohol, add polyethylene glycol 12g, cellulose acetate 10g, cumyl peroxide 3.4g, silane coupler 3.0g on dispersion, the mixed base, reacted 10 minutes down in 90 ℃;
Add 150 order bead 77g, sepiolite 26g in said mixture, epoxy resin 4.0g, scale preventative ML 6.0g stir down in 95 ℃, reacted 1.5 hours; To reaction mass carry out vacuum filtration, drying and crushing to 150～300 orders obtain matrix material;
2, preparation shrinkage cavity material: with 100 purpose diatomite 120g, quartz sand 80g, in the 180g absolute ethyl alcohol, add silane coupler 15g on dispersion, the mixed base, reacted 1 hour down in 95 ℃; To reaction mass carry out vacuum filtration, drying and crushing to 180～300 orders obtain the shrinkage cavity material;
3, produce the diffusion barrier semi-finished product: get the 150g matrix material, calcium stearate 3g, barium sulfate 2g, lithium chloride 2.5g, rare earth oxide 0.2g join in the 120g absolute ethyl alcohol, produce diffusion barrier liquid after mixing 1 hour under 90 ℃; With cast, be coated with and scrape or modes such as curtain coating, hot pressing are made diffusion barrier, form the about 50～100um in aperture, porosity 8～70%, the three-dimensional through hole diffusion barrier of thickness 0.2～1.5mm; Add the method for filling by machinery the shrinkage cavity material is mounted in the diffusion barrier, (1～20mpa) reaches particulate inlays firm purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, by adjusting pressure and firing temperature 1～1.2 hour 150～180 ℃ of following retention time, the aperture of control shrinkage cavity is at 0.05～20um, porosity 5～60%, thickness 0.2～1.5mm obtains filter diffusion barrier semi-finished product for standby;
4, produce filter: in mould, insert diffusion barrier semi-finished product (following diffusion barrier 5)～matrix material (lower substrate 4)～liquid support passage 3 (matrix material)～matrix material (going up matrix 2)～diffusion barrier semi-finished product (going up diffusion barrier 1) respectively according to following layer of structure, the locking mould, the heating furnace or add in the heating kiln of packing into; Add nitrogen protection gas, temperature kept 2.5 hours down at 160～220 ℃, produced filter; The filter of making is finished filter through technologies such as shaping, cleanings and is made.
Embodiment 4:
1, preparation matrix material: add polyvinyl alcohol 15g, polyethylene glycol 10g, silane coupler 7g on dispersion, the mixed base with 100 order ultra-high molecular weight polyethylene 110g, high density polyethylene (HDPE) 60g, in the 270g absolute ethyl alcohol, reacted 10 minutes down in 90 ℃; Add 150 order modified zeolite 35g, carbon black 25g in said mixture, sodium metasilicate 10g, scale preventative MDC 9g stir down in 95 ℃, reacted 1.5 hours; To reaction mass carry out vacuum filtration, drying and crushing to 150～300 orders obtain matrix material;
2, preparation shrinkage cavity material: with 100 purpose bentonite 150g, bead 50g, in the 180g absolute ethyl alcohol, add silane coupler 8g on dispersion, the mixed base, reacted 1 hour down in 95 ℃; To reaction mass carry out vacuum filtration, drying and crushing to 180～300 orders obtain the shrinkage cavity material;
3, produce the diffusion barrier semi-finished product: get the 150g matrix material, calcium stearate 2g, adipic acid 2g, vinyl silanes 4g, lithium chloride 2g add in the 90g absolute ethyl alcohol, produce diffusion barrier liquid after mixing 1 hour under 90 ℃; With cast, be coated with and scrape or modes such as curtain coating, hot pressing are made diffusion barrier, form the about 50～100um in aperture, porosity 8～70%, the three-dimensional through hole diffusion barrier of thickness 0.2～1.5mm; Add the method for filling by machinery the shrinkage cavity material is mounted in the diffusion barrier, (1～20mpa) reaches particulate inlays firm purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, kept 1～1.2 hour down at 140～180 ℃ by adjusting pressure and firing temperature, the aperture of control shrinkage cavity is at 0.05～20um, porosity 5～60%, and thickness 0.2～1.5mm obtains filter diffusion barrier semi-finished product for standby;
4, produce filter: with producing the filter step among the embodiment 3.
Embodiment 5:
1, preparation matrix material: 100 order ultra-high molecular weight polyethylene 170g are disperseed in the 270g absolute ethyl alcohol, add polyvinyl alcohol 12g, cellulose acetate 10g, silane coupler 4g, polyvinylpyrrolidone 3g on the mixed base, reacted 10 minutes down in 90 ℃;
Add 150 order carborundum 15g, carbon black 2g, corundum 75g in said mixture, epoxy resin 10g, scale preventative CP 11g stir down in 95 ℃, reacted 1.5 hours; To reaction mass carry out vacuum filtration, drying and crushing to 150～300 orders obtain matrix material;
2, preparation shrinkage cavity material: with 100 purpose diatomite 150g, sepiolite 50g, in the 180g absolute ethyl alcohol, add silane coupler 8g on dispersion, the mixed base, reacted 1 hour down in 95 ℃; To reaction mass carry out vacuum filtration, drying and crushing to 180～300 orders obtain the shrinkage cavity material;
3, produce the diffusion barrier semi-finished product: get the 150g matrix material, potash 5g, adipic acid 3g, vinyl silanes 4g, rare earth oxide 0.2g join in the 75g absolute ethyl alcohol, produce diffusion barrier liquid after mixing 1 hour under 90 ℃; With cast, be coated with and scrape or modes such as curtain coating, hot pressing are made diffusion barrier, form the about 50～100um in aperture, porosity 8～70%, the three-dimensional through hole diffusion barrier of thickness 0.2～1.5mm; Add the method for filling by machinery the shrinkage cavity material is mounted in the diffusion barrier, (1～20mpa) reaches particulate inlays firm purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, kept 1～1.2 hour down at 140～180 ℃ by adjusting pressure and firing temperature, the aperture of control shrinkage cavity is at 0.05～20um, porosity 5～60%, and thickness 0.2～1.5mm obtains filter diffusion barrier semi-finished product for standby;
4, produce filter: with producing the filter step among the embodiment 3.
The foregoing description make filter after tested technical data see the following form:
Claims (6)
1. Separation of Solid and Liquid composite filter, mainly make by separation membrane material, matrix material and shrinkage cavity material, the upper and lower outer surface of matrix of this filter is compounded with upper and lower diffusion barrier respectively, body plan has the liquid support passage between upper and lower matrix, it is characterized in that: described diffusion barrier is to be added with nucleator and activating agent in matrix material, and the shrinkage cavity material is mounted in the diffusion barrier, and described matrix material comprises:
1. polyolefin macromolecular material, this macromolecular material is: polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene, the high density polyethylene (HDPE) one or more combination in them;
2. inorganic material, this inorganic material is: modified zeolite, perlite, sepiolite, corundum, bead, diamond stone, carborundum, carbon black, diatomite, the bentonite one or more combination in them;
3. hydrophilizing agent, this hydrophilizing agent is: polyvinyl alcohol, polyvinylamine, polyethylene glycol, the cellulose acetate one or more combination in them;
4. coupling agent, this coupling agent is: cumyl peroxide, silane coupler, polyvinylpyrrolidone one or more combination in them;
5. binding agent, this binding agent is: sodium metasilicate, ptfe emulsion, the epoxy resin one or more combination in them;
6. scale preventative, this scale preventative is: ML, CP, the MDC one or more combination in them;
7. dispersant, this dispersant is: absolute ethyl alcohol.
2. according to the described Separation of Solid and Liquid composite filter of claim 1, it is characterized in that: the weight proportion of described matrix material each component is:
1. 80～300 purpose polyolefin macromolecular materials, 150～200 weight portions;
2. 150～300 purpose inorganic material, 50～120 weight portions;
3. hydrophilizing agent 18～30 weight portions;
4. coupling agent 2～10 weight portions;
5. binding agent 3～12 weight portions;
6. scale preventative 5～12 weight portions;
7. dispersant 150～300 weight portions.
3. according to the described Separation of Solid and Liquid composite filter of claim 1, it is characterized in that: the component of described shrinkage cavity material and weight proportion are:
1. the inorganic material of 100～350 orders, 150～220 weight portions;
2. the coupling agent of 8.0～15 weight portions;
3. the dispersant of 100～180 weight portions.
4. according to the described Separation of Solid and Liquid composite filter of claim 1, it is characterized in that: described nucleator is potash, barium sulfate, calcium stearate, the adipic acid one or more combination in them, and consumption is 4.0～10 weight portions.
5. according to the described Separation of Solid and Liquid composite filter of claim 1, it is characterized in that: described activating agent is a kind of or its combination in them of rare earth oxide, lithium chloride, vinyl silanes, and consumption is 0.5～6.5 weight portion.
6. according to the preparation method of each described Separation of Solid and Liquid composite filter of claim 1～5, it is characterized in that this method may further comprise the steps:
One, preparation matrix material
1) with the polyolefin macromolecular material of 80～300 orders, 150～200 weight portions, add the dispersant mixing of 150～300 weight portions, add 18～30 weight portion hydrophilizing agents again, the coupling agent of 2～10 weight portions reacted 10～20 minutes down in 90～120 ℃;
2) in the mixture of step 1), add 150～300 orders, 50～120 weight portion modified zeolites, bead class inorganic material, 3～12 weight portion binding agents, 5～12 weight portion scale preventatives were in 90～120 ℃ of following stirring reactions 1～2 hour;
3) to step 2) the gained mixture carries out vacuum filtration, be crushed to 150～300 orders obtains matrix material;
Two, preparation shrinkage cavity material
With 150～220 weight portions, 100～350 order perlites, modified zeolite class inorganic material, 8～15 weight portion coupling agents, place the absolute ethyl alcohol of 100～180 weight portions to be uniformly dispersed, in 90～120 ℃ of following stirring reactions 1～2 hour, again this compound is carried out vacuum filtration, is crushed to 180～350 orders and obtains the shrinkage cavity material;
Three, preparation diffusion barrier semi-finished product
1) get the matrix material for preparing of 120～200 weight portions, add the nucleator of 4～10 weight portions, the activating agent of 0.5～6.5 weight portion is uniformly dispersed in the dispersant of 70～120 weight portions, makes diffusion barrier liquid in 60～95 ℃ after mixing 1～3 hour;
2) with cast, be coated with and scrape or curtain coating, hot pressing mode are made diffusion barrier, the formation aperture is 50～100um, porosity 8～70%, the three-dimensional through hole diffusion barrier of thickness 0.2～1.5mm;
3) add the method for filling by machinery the shrinkage cavity material for preparing is mounted in the diffusion barrier, through the 1-20mpa that exerts pressure particulate is inlayed firmly again;
4) the edge grain diffusion barrier of the 3rd step preparation is inserted in the heating furnace, in 150～400 ℃, carry out shrinkage cavity under 1～1.5 hour condition, the shrinkage cavity back aperture is 0.05～20um, porosity 5～60%, and thickness 0.2～1.5mm obtains filter diffusion barrier semi-finished product for standby;
Four, preparation filter
----the liquid support passage--goes up matrix--, and upward the layer of structure of diffusion barrier is inserted corresponding material to lower substrate according to following diffusion barrier in mould; wherein upper and lower diffusion barrier adopts the diffusion barrier semifinished material; upper and lower matrix and liquid support passage adopt matrix material; the locking mould; pack into heating furnace or add in the heating kiln; under carbon dioxide or nitrogen protection, kept 3～5 hours down in 160～400 ℃, make composite filter.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007780A (en) * | 2012-12-17 | 2013-04-03 | 常州大学 | Coagulation diatomite membrane as well as preparation method thereof and method for treating eutrophic water body by utilizing same |
| CN103381322A (en) * | 2013-06-25 | 2013-11-06 | 蚌埠凤凰滤清器有限责任公司 | Active carbon filter core and preparation method thereof |
| CN103736323A (en) * | 2013-12-20 | 2014-04-23 | 安徽铜冠机械股份有限公司 | Filter plate and production method thereof |
| CN106377945A (en) * | 2016-09-07 | 2017-02-08 | 芜湖德鑫汽车部件有限公司 | Automobile air-conditioner antibacterial filtering plate and preparation method thereof |
| CN107778500A (en) * | 2017-11-02 | 2018-03-09 | 浙江衢州鑫巨氟材料有限公司 | A kind of manufacture method of hydrophilic film super high molecular weight polytetrafluoroethylene (PTFE) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846906A (en) * | 1987-12-02 | 1989-07-11 | The Duriron Company, Inc. | Methods for the manufacture of porous ceramic shapes containing membraneous surfaces |
| CN1336248A (en) * | 2000-08-01 | 2002-02-20 | 李裕成 | Making-process of active sintered microfiltering film |
| WO2005023401A1 (en) * | 2003-09-09 | 2005-03-17 | Miroslav Dohnal | Blend for the production of inorganic separation membranes |
| CN101318808A (en) * | 2007-08-07 | 2008-12-10 | 江苏省宜兴非金属化工机械厂 | Porous ceramic supporting body for high-strength inorganic separation film |
| CN101913872A (en) * | 2010-07-22 | 2010-12-15 | 萍乡市金辉环保有限责任公司 | Production method of silicon carbide-silicon oxide ceramic membrane filter tube |
-
2011
- 2011-06-01 CN CN 201110148414 patent/CN102210954B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846906A (en) * | 1987-12-02 | 1989-07-11 | The Duriron Company, Inc. | Methods for the manufacture of porous ceramic shapes containing membraneous surfaces |
| CN1336248A (en) * | 2000-08-01 | 2002-02-20 | 李裕成 | Making-process of active sintered microfiltering film |
| WO2005023401A1 (en) * | 2003-09-09 | 2005-03-17 | Miroslav Dohnal | Blend for the production of inorganic separation membranes |
| CN101318808A (en) * | 2007-08-07 | 2008-12-10 | 江苏省宜兴非金属化工机械厂 | Porous ceramic supporting body for high-strength inorganic separation film |
| CN101913872A (en) * | 2010-07-22 | 2010-12-15 | 萍乡市金辉环保有限责任公司 | Production method of silicon carbide-silicon oxide ceramic membrane filter tube |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007780A (en) * | 2012-12-17 | 2013-04-03 | 常州大学 | Coagulation diatomite membrane as well as preparation method thereof and method for treating eutrophic water body by utilizing same |
| CN103381322A (en) * | 2013-06-25 | 2013-11-06 | 蚌埠凤凰滤清器有限责任公司 | Active carbon filter core and preparation method thereof |
| CN103381322B (en) * | 2013-06-25 | 2015-07-22 | 安徽凤凰滤清器股份有限公司 | Active carbon filter core and preparation method thereof |
| CN103736323A (en) * | 2013-12-20 | 2014-04-23 | 安徽铜冠机械股份有限公司 | Filter plate and production method thereof |
| CN103736323B (en) * | 2013-12-20 | 2015-09-09 | 安徽铜冠机械股份有限公司 | A kind of filter and production method thereof |
| CN106377945A (en) * | 2016-09-07 | 2017-02-08 | 芜湖德鑫汽车部件有限公司 | Automobile air-conditioner antibacterial filtering plate and preparation method thereof |
| CN107778500A (en) * | 2017-11-02 | 2018-03-09 | 浙江衢州鑫巨氟材料有限公司 | A kind of manufacture method of hydrophilic film super high molecular weight polytetrafluoroethylene (PTFE) |
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