CN102210954B - Solid-liquid separation composite filter board and preparation method thereof - Google Patents
Solid-liquid separation composite filter board and preparation method thereof Download PDFInfo
- Publication number
- CN102210954B CN102210954B CN 201110148414 CN201110148414A CN102210954B CN 102210954 B CN102210954 B CN 102210954B CN 201110148414 CN201110148414 CN 201110148414 CN 201110148414 A CN201110148414 A CN 201110148414A CN 102210954 B CN102210954 B CN 102210954B
- Authority
- CN
- China
- Prior art keywords
- diffusion barrier
- matrix
- weight portions
- shrinkage cavity
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filtering Materials (AREA)
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 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.Its Separation of Solid and Liquid application of principle be that pore is theoretical, 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 Membrane, makes with hydrophilic material sintered alumina etc., and micro-pore diameter 1.5-2.9 μ m forms about capillary force 140kPa.When the micropore capillary force is poor greater than the micropore pressure at two ends, be full of water in the micropore, gas can not pass through micropore.
Though ceramic filter plate technology of preparing and technique are slightly had any different at present, but common feature is arranged, the one, the material aspect, it must be hydrophilic requiring in theory material, substantially add at present auxiliary material consists of take ceramic materials such as aluminium oxide as main body, such 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 that forms of the ceramic particle of major ingredient and is the superficial layer that the ceramic particle of major ingredient forms 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 large; 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 affects its life-span.For eliminating this phenomenon, in equipment, adopted the 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 from 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, structure aspects, employing forms first matrix (skeleton) mostly, afterwards the structure of spraying filtering layer 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 ﹠processes makes the diffusion barrier porosity extremely low, and the pore-size distribution difficulty is aligned.Filter plate is pottery simultaneously, and hardness is high, fragility is 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 Decrepitation Phenomena, produce the difficult cleaning of fragment, change inconvenient problem, even stuck equipment can occur, burn out the more serious problems such as motor.
The 3rd, the manufacture craft aspect, ceramic filter plate adopts injection forming in early days, as described in the patent documentation such as US Patent No. 4863656, US4981589 and Chinese patent 98111184.X number, it is the ceramic filter substrate that obtains having hollow structure by slip casting in absorption mould, and then applies the filtration top layer on its surface.At present technology developed into the collapsible mould pressing formation, with the filter of two involutory bonding acquisition hollow structures, such as microporous ceramic filter plate as described in Chinese patent CN01114048.8 and the CN01241404.2, be molded into fan-shaped micropore ceramics monolithic by the matrix material mix and blend exactly, dry, involutory bonding, burn till, the spraying filtering layer, drier, burn till.Also have in addition the integral die moulding process, such as Chinese patent 1486212A, the method is to make matrix form the integral 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 techniques 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 wider adjusting range is arranged; There is higher porosity also to reach unanimity within the specific limits; Having preferably, mechanical strength satisfies need of production; 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 object of the invention is to overcome many defectives that above-mentioned prior art exists, provide a kind of and from material, structure and production technology and present ceramic filter plate vacuum composite filter obvious difference, that be used for Separation of Solid and Liquid and preparation method thereof is arranged, this filter is used for slurry or liquid Separation of Solid and Liquid, and through-hole rate is high, have good good antiscale property function; Its elasticity, intensity, toughness coupling appropriateness, filter cake output is large, filter plate is lightweight, 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 at present obvious difference of ceramic filter plate structure: 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 solid-liquid separation composite filter board, mainly made by separation membrane material, matrix material and shrinkage cavity material, the upper and lower outer surface of matrix of this filter is compounded with respectively upper and lower diffusion barrier, 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 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 solid-liquid separation composite filter board of the present invention is characterized in that the 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 again 18～30 weight portion hydrophilizing agents, the coupling agent of 2～10 weight portions was in 90～120 ℃ of lower reactions 10～20 minutes;
2) in step 1) mixture in 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 lower 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 lower 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
----layer of structure of the upper diffusion barrier of liquid support passage--upper matrix--is inserted corresponding material to lower substrate according to lower 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; locking die; pack into heating furnace or add in the heating kiln; under carbon dioxide or nitrogen protection, in 160～400 ℃ of lower maintenances 3～5 hours, 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 the 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 respectively diffusion barrier, antiscale film, develop the multilayer film complex technique, stable controlled film form, size, porosity and distribution etc. and affected 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, the 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 milling capacity; Reduce the film pollution probability, namely alleviated filter plate filter bores 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 greatly saved the energy, have reduced cost, have improved film properties, and technical indicator obviously improves, the cost decrease; Flexible, the light body design of filter plate has preferably strength and toughness, and weight is 1/3 of existing ceramic filter plate, has avoided filter plate to block the problem that the aspects such as the break stuck equipment, the maintenance that produce be inconvenient are brought because of filter opening in using.
Description of drawings
Fig. 1 is the composite filter structural representation.Among the figure: 1, upper diffusion barrier; 2, upper matrix; 3, liquid support passage; 4, lower substrate; 5, lower 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: 100 order polytetrafluorethylepowder powder 170g, dispersion in the 270g absolute ethyl alcohol, mixed base are added polyvinyl alcohol 17g, cellulose acetate 10g, cumyl peroxide 2.4g, in 90 ℃ of lower reactions 10 minutes;
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: with 100 purpose modified zeolite 150g, carborundum powder 50g in the 180g absolute ethyl alcohol, disperses, mixed base adds silane coupler 12g, 95 ℃ of lower reactions 1 hour; 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 in 90 ℃ of lower mixing after 1 hour; With cast, be coated with and scrape or the 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 firmly purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, by adjusting pressure and firing temperature 340～350 ℃ of lower maintenances 1.2～1.5 hours, make the aperture of shrinkage cavity be controlled at 0.05～20um, porosity 5～60%, thickness 0.2～1.5mm, it is for subsequent use to obtain filter diffusion barrier semifinished material;
4, produce filter: referring to accompanying drawing, in mould, insert respectively diffusion barrier semifinished material (lower diffusion barrier 5)～matrix material (lower substrate 4)～liquid support passage 3 (matrix material)～matrix material (upper matrix 2)～diffusion barrier semifinished material (upper diffusion barrier 1) according to following layer of structure, locking die, 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 techniques such as shaping, cleanings and is made.
Embodiment 2:
1, preparation matrix material: 120 order polytetrafluorethylepowder powder 170g, dispersion in the 270g absolute ethyl alcohol, mixed base are added polyvinylamine 25g, polyvinylpyrrolidone 2.0g, silane coupler 4.5g, in 90 ℃ of lower reactions 10 minutes;
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 lower 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 in 90 ℃ of lower mixing after 1 hour; With cast, be coated with and scrape or the 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 firmly 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 lower retention times, control the aperture of shrinkage cavity 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, dispersion in the 270g absolute ethyl alcohol, mixed base added polyethylene glycol 12g, cellulose acetate 10g, cumyl peroxide 3.4g, silane coupler 3.0g, in 90 ℃ of lower reactions 10 minutes;
Add 150 order bead 77g, sepiolite 26g in said mixture, epoxy resin 4.0g, scale preventative ML 6.0g were in 95 ℃ of lower 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: with 100 purpose diatomite 120g, quartz sand 80g, dispersion in the 180g absolute ethyl alcohol, mixed base added silane coupler 15g, in 95 ℃ of lower reactions 1 hour; 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 in 90 ℃ of lower mixing after 1 hour; With cast, be coated with and scrape or the 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 firmly 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 lower retention time, control the aperture of shrinkage cavity 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 respectively diffusion barrier semi-finished product (lower diffusion barrier 5)～matrix material (lower substrate 4)～liquid support passage 3 (matrix material)～matrix material (upper matrix 2)～diffusion barrier semi-finished product (upper diffusion barrier 1) according to following layer of structure, locking die, the heating furnace or add in the heating kiln of packing into; Add nitrogen protection gas, temperature is produced filter 160～220 ℃ of lower maintenances 2.5 hours; The filter of making is finished filter through techniques such as shaping, cleanings and is made.
Embodiment 4:
1, preparation matrix material: 100 order ultra-high molecular weight polyethylene 110g, high density polyethylene (HDPE) 60g, dispersion in the 270g absolute ethyl alcohol, mixed base are added polyvinyl alcohol 15g, polyethylene glycol 10g, silane coupler 7g, in 90 ℃ of lower reactions 10 minutes; Add 150 order modified zeolite 35g, carbon black 25g in said mixture, sodium metasilicate 10g, scale preventative MDC 9g were in 95 ℃ of lower 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: with 100 purpose bentonite 150g, bead 50g, dispersion in the 180g absolute ethyl alcohol, mixed base added silane coupler 8g, in 95 ℃ of lower reactions 1 hour; 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 in 90 ℃ of lower mixing after 1 hour; With cast, be coated with and scrape or the 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 firmly purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, by adjusting pressure and firing temperature 140～180 ℃ of lower maintenances 1～1.2 hour, control the aperture of shrinkage cavity 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 3.
Embodiment 5:
1, preparation matrix material: with 100 order ultra-high molecular weight polyethylene 170g in the 270g absolute ethyl alcohol, disperses, mixed base adds polyvinyl alcohol 12g, cellulose acetate 10g, silane coupler 4g, polyvinylpyrrolidone 3g, in 90 ℃ of lower reactions 10 minutes;
Add 150 order carborundum 15g, carbon black 2g, corundum 75g in said mixture, epoxy resin 10g, scale preventative CP 11g were in 95 ℃ of lower 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: with 100 purpose diatomite 150g, sepiolite 50g, dispersion in the 180g absolute ethyl alcohol, mixed base added silane coupler 8g, in 95 ℃ of lower reactions 1 hour; 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 in 90 ℃ of lower mixing after 1 hour; With cast, be coated with and scrape or the 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 firmly purpose through exerting pressure again; Diffusion barrier is inserted the heating furnace shrinkage cavity, by adjusting pressure and firing temperature 140～180 ℃ of lower maintenances 1～1.2 hour, control the aperture of shrinkage cavity 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 3.
Above-described embodiment make filter after tested technical data see the following form:
Claims (2)
1. solid-liquid separation composite filter board, mainly made by diffusion barrier, matrix material and shrinkage cavity material, the upper and lower outer surface of matrix of this filter is compounded with respectively upper and lower diffusion barrier, 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 the weight proportion of described matrix material and each component is:
1. 80～300 purpose polyolefin macromolecular materials, 150～200 weight portions, this macromolecular material is: polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene, the high density polyethylene (HDPE) one or more combination in them,
2. 150～300 purpose inorganic material, 50～120 weight portions, this inorganic material is: modified zeolite, perlite, sepiolite, corundum, bead, carborundum, carbon black, diatomite, the bentonite one or more combination in them,
3. hydrophilizing agent 18～30 weight portions, this hydrophilizing agent is: polyvinyl alcohol, polyvinylamine, polyethylene glycol, the cellulose acetate one or more combination in them,
4. coupling agent 2～10 weight portions, this coupling agent is: cumyl peroxide, silane coupler, polyvinylpyrrolidone one or more combination in them,
5. binding agent 3～12 weight portions, this binding agent is: sodium metasilicate, ptfe emulsion, the epoxy resin one or more combination in them,
6. scale preventative 5～12 weight portions, this scale preventative is: ML, CP, the MDC one or more combination in them,
7. dispersant 150～300 weight portions, this dispersant is: absolute ethyl alcohol;
The component of described shrinkage cavity material 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, 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 absolute ethyl alcohol;
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;
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.
2. according to the preparation method of solid-liquid separation composite filter board claimed in claim 1, it is characterized in that the 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 again 18～30 weight portion hydrophilizing agents, the coupling agent of 2～10 weight portions was in 90～120 ℃ of lower reactions 10～20 minutes;
2) in step 1) mixture in 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 lower 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 100～350 orders, 150～220 weight portion 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 lower 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
----layer of structure of the upper diffusion barrier of liquid support passage--upper matrix--is inserted corresponding material to lower substrate according to lower 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; locking die; pack into heating furnace or add in the heating kiln; under carbon dioxide or nitrogen protection, in 160～400 ℃ of lower maintenances 3～5 hours, make composite filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110148414 CN102210954B (en) | 2011-06-01 | 2011-06-01 | Solid-liquid separation composite filter board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110148414 CN102210954B (en) | 2011-06-01 | 2011-06-01 | Solid-liquid separation composite filter board and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102210954A CN102210954A (en) | 2011-10-12 |
| CN102210954B true CN102210954B (en) | 2013-04-24 |
Family
ID=44742631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110148414 Active CN102210954B (en) | 2011-06-01 | 2011-06-01 | Solid-liquid separation composite filter board and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102210954B (en) |
Families Citing this family (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 |
| 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 |
| 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) |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102210954A (en) | 2011-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107010968B (en) | High-strength light-weight corundum-mullite refractory aggregate and preparation method thereof | |
| CN103964765B (en) | A kind of method utilizing polishing slag to manufacture Ceramsite water permeable brick | |
| CN102210954B (en) | Solid-liquid separation composite filter board and preparation method thereof | |
| US6238618B1 (en) | Production of porous mullite bodies | |
| US20190300447A1 (en) | High-temperature Resistant Lightweight Thermal Insulation Material with Dual-pore Structure and Preparation Method Thereof | |
| CN111410513B (en) | Thin microporous composite ceramic plate with high porosity and preparation method thereof | |
| CN111153707B (en) | Composite refractory prefabricated part for cylindrical kiln and preparation method thereof | |
| CN107602091A (en) | A kind of preparation method of dish-style alumina filter film | |
| CN101381241B (en) | Porous breathable refractory materials for upper nozzle and production method thereof | |
| WO2017004776A1 (en) | Porous alumina ceramic ware and preparation method thereof | |
| CN101913872B (en) | Production method of silicon carbide-silicon oxide ceramic membrane filter tube | |
| CN108484149B (en) | Preparation method of NaA molecular sieve membrane support | |
| CN113648848B (en) | Hollow flat ceramic membrane and preparation method thereof | |
| CN106045487A (en) | Preparation method of Al2O3 and SiO2 porous ceramic membrane support | |
| CN103274693A (en) | Porous silicon carbide ceramic provided with novel pore wall structure and preparation method thereof | |
| CN107619296A (en) | A kind of preparation method of the full silicon carbide filter film of dish-style | |
| CN101537314A (en) | Filter tube support body material for microporous inorganic separating film and synthesizing method thereof | |
| CN104072141A (en) | Preparation method of silicon carbide honeycomb ceramics | |
| CN108392990A (en) | A kind of full ceramic filter membrane component of hollow tablet | |
| CN102424603A (en) | Method for preparing zirconia gradient porous ceramics with ice as template | |
| CN108558418A (en) | A kind of preparation method of the high-strength calcium hexaluminate refractory material of light weight | |
| CN1341578A (en) | Method for preparing silicon carbide porous ceramic pipe | |
| CN106116648B (en) | The method that sound absorption-type ceramic fibre iron ore prepares the porous sponge brick that catchments | |
| CN112500129A (en) | Fiber-reinforced rock plate and preparation method thereof | |
| CN205309242U (en) | Package torrent controller in middle of low -cost high life continuous casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160322 Address after: 122000, No. five, section 97, Wenhua Road, Longcheng District, Liaoning, Chaoyang City Patentee after: CHAOYANG GUANGDA CHEMICAL Co.,Ltd. Address before: 122000 science and Technology Bureau, No. three, 7 Chaoyang Street, Liaoning, Chaoyang City Patentee before: Dai Zhiqiang |
|
| DD01 | Delivery of document by public notice |
Addressee: Chen Xiliang Document name: payment instructions |
|
| DD01 | Delivery of document by public notice |