CN105879687A - Ceramic hollow fibrous membrane filter element component and assembly with same - Google Patents
Ceramic hollow fibrous membrane filter element component and assembly with same Download PDFInfo
- Publication number
- CN105879687A CN105879687A CN201610266480.5A CN201610266480A CN105879687A CN 105879687 A CN105879687 A CN 105879687A CN 201610266480 A CN201610266480 A CN 201610266480A CN 105879687 A CN105879687 A CN 105879687A
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- membrane
- ceramic hollow
- ceramic
- hollow fiber
- filter core
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- 239000012528 membrane Substances 0.000 title claims abstract description 164
- 239000000919 ceramic Substances 0.000 title claims abstract description 85
- 239000012510 hollow fiber Substances 0.000 claims abstract description 70
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 46
- 239000002808 molecular sieve Substances 0.000 claims description 27
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 25
- 239000008393 encapsulating agent Substances 0.000 claims description 21
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 229910052594 sapphire Inorganic materials 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 abstract description 4
- 239000003566 sealing material Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 238000001728 nano-filtration Methods 0.000 description 7
- 235000012489 doughnuts Nutrition 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 108091006146 Channels Proteins 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229910052863 mullite Inorganic materials 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 108090000862 Ion Channels Proteins 0.000 description 1
- 102000004310 Ion Channels Human genes 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical class Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
Abstract
The invention relates to a ceramic hollow fibrous membrane filter element component and an assembly with the same. The ceramic hollow fibrous membrane filter element component comprises a plurality of ceramic hollow fibrous membrane tubes, a porous base and a porous cover plate. One end of each ceramic hollow fibrous membrane tube is inserted into a corresponding membrane hole of the base via the porous cover plate, and sealing materials are poured in the ceramic hollow fibrous membrane filter element component. The other end of each ceramic hollow fibrous membrane tube is connected with a corresponding hole in the porous cover plate, so that the ceramic hollow fibrous membrane filter element component can be manufactured. The ceramic hollow fibrous membrane filter element component is hermetically fixed into a shell to form the hollow fibrous membrane assembly. The ceramic hollow fibrous membrane filter element component and the assembly have the advantages that large filling areas of ceramic hollow fibrous membranes can be maintained, ceramic hollow fibers can be sealed, the strength of the hollow fibrous membranes can be improved, and the application field of the hollow fibrous membranes can be expanded.
Description
Technical field
The present invention relates to a kind of ceramic hollow fibrous membrane filter core element and assembly thereof, belong to inoranic membrane field.
Background technology
Ceramic hollow fibrous membrane, because its diameter is little, wall is thin, has higher loading density, is more and more paid close attention to by people.Wherein, hollow-fibre membrane has higher permeation flux because of it, is expected to become the configuration that the inorganic ceramic membrane component products of a new generation is used, such as: nanofiltration membrane, ceramic super-filtering film, molecular screen membrane etc..
Wherein, compared with the isolation technics such as traditional liquid-phase extraction, absorption, chemical settling, ion exchange, inorganic ceramic Nanofiltration Membrane Separation Technology has the higher volume concentration factor, do not produce secondary pollution, and compared with organic film, ceramic membrane is resistant to various severe conditions, such as acid and alkali-resistance, high temperature resistant, radiation hardness.These features determine Inorganic Nanofiltration Membranes will have the most wide application prospect at the process of food, medicine, drinking water, life and trade effluent and some high temperature, high corrosion field.But current main nanofiltration membrane is all to have employed single tube, the configuration of multi-channel structure formula, its cost is high, the filling little range of application limiting it of area.
It addition, molecular screen membrane is the dense film grown on porous supporting body by molecular sieve, because the features such as homogeneous, high temperature resistant, the resist chemical in its aperture enjoy people to favor.Molecular screen membrane is applied to dehydration of organic solvent field, e.g., ethanol, isopropanol, the organic solvent system such as esters, ethers, compared with traditional separating technology (such as rectifying, absorption etc.), there is significant energy-saving and emission-reduction advantage.Chinese patent CN 101920170A discloses a kind of high-throughout molecular-sieve alcohol permselective membrane and preparation method thereof, uses YSZ(yttrium stable zirconium oxide) material spinning doughnut carrier, prepare MFI molecular screen membrane on this carrier.In 5wt%/95wt% ethanolic aqueous system, molecular sieve film pervasion flux is up to 7.4 kg/ (h m2)。
Within 1999, Mitsui Ship-building Company establishes first set industry dehydration device, separates the ethanol solution of water content 10 wt.% at 120 DEG C, and treating capacity reaches 480kg/h, and after separation, product water content is less than 0.12wt.%.To 2004, the said firm established ethanol dehydration etc. more than 60 and has overlapped membrane separation device.Domestic, in the end of the year 2011, Jiangsu Nine Heaven High-tech. Co., Ltd. is devoted to molecular screen membrane research and development, produces and apply, and the most built vertical dehydration of organic solvent device more than 70 overlaps.The molecular screen membrane of commercialization at present is mainly based on tubular type, multichannel molecular screen membrane, and its loading density is low, causes membrane separation device cost of investment of a relatively high.
But, hollow-fibre membrane is in actual application, and its bending strength is far smaller than existing single tube, multi-channel membrane, and this factor becomes affects hollow-fibre membrane industrial applications process significant obstacle.Additionally, hollow-fibre membrane sealing problem is also key issue urgently to be resolved hurrily in hollow fiber molecular sieve industrialization process.At present, report is rarely had about hollow fiber film assembly, Chinese patent CN 100553751C discloses a kind of hollow fiber ceramic membrane element and assembly thereof, it is mainly used in micro-filtration, ultra-filtration filters system, owing to hollow fiber ceramic membrane is tightly packaged together by it, increase internal mass transfer resistance, significantly reduce hollow-fibre membrane utilization rate.Therefore, the ceramic hollow fibrous membrane filter core element and the assembly thereof that develop a kind of high intensity, easily seal are the most necessary.
Summary of the invention
It is an object of the invention to provide a kind of ceramic hollow fibrous membrane filter core element and assembly thereof.This assembly maintains the feature of hollow-fibre membrane height filling area, and effectively solves the bottleneck problem such as intensity difference during hollow-fibre membrane commercial Application, difficult sealing.
The present invention is by the following technical solutions:
A kind of ceramic hollow fibrous membrane filter core element, include Perforated decking and porous pedestal, many parallel hollow fiber film tubes it are provided with between Perforated decking and porous pedestal, hollow fiber film tube is socketed in the fenestra on Perforated decking and porous pedestal, be both provided with the encapsulant of stratiform towards the side of hollow fiber film tube at porous porcelain cover plate and porous pedestal, encapsulant is by the sealing gap between hollow fiber film tube and fenestra.
Described blind patch and porous pedestal material are polytetrafluoroethylene (PTFE), pottery or metal.
Described hollow fiber film tube is to be made up of Ceramic Hollow Fiber carrier and film layer.
Described film layer refers to molecular screen membrane or the NF membrane prepared by ceramic material.
Described Ceramic Hollow Fiber carrier has less than or equal to 7 passages.
Described Ceramic Hollow Fiber carrier is by α-Al2O3, YSZ (yttria-stabilized zirconia), TiO2In one or both composition, its external diameter is 1～5mm, and average pore size is 0.2～2.0 μm, and porosity is 25～55%.
Described molecular screen membrane is channel diameter zeolite molecular sieve membrane material between 2.8～7.4.
Described hollow-fibre membrane length of tube is between 20～100cm.
Described encapsulant is epoxy resin, organosilicon or ceramic sealant.
The radical of described hollow fiber film tube is less than or equal to 200, and consistent with the quantity of the fenestra on porous pedestal and Perforated decking fenestra, the spacing of membrane tube is 0.1～3 times of membrane tube external diameter.
Perforated decking and porous pedestal are further opened with guiding gutter in the one side of hollow fiber film tube, are also coated with high polymer layer in guiding gutter.
The equal perforate in described hollow fiber membrane cartridge element two ends or wherein one end perforate.
Include the membrane module of above-mentioned ceramic hollow fibrous membrane filter core element.
A kind of membrane module, include housing, ceramic hollow fibrous membrane filter core element is positioned in housing, ceramic hollow fibrous membrane filter core element one end is closed, the other end is connected with the end socket on housing, end socket is provided with vacuum hole, O is set between end socket and filter core element with the sealing realizing between end socket and housing.
Charging hole and discharge opening it is additionally provided with on described housing.
The lower section of housing is additionally provided with outage.
The material of described O is silica gel, fluorine glue, tetrafluoro or graphite.
A kind of membrane module, include housing, ceramic hollow fibrous membrane filter core element is positioned in housing, the two ends of housing are both provided with end socket, the two ends of ceramic hollow fibrous membrane filter core element are connected with the end socket at two ends respectively, it is respectively arranged with the first feed liquid mouth and the second feed liquid mouth on end socket, O is set between end socket and filter core element with the sealing realizing between end socket and housing.
The first housing outlets and/or the second housing outlets it is respectively arranged with on housing.
Beneficial effect
A () uses base of ceramic fitted seal material seal hollow-fibre membrane, enhancing film is antiacid, alkali ability, widens film application.B () ceramic hollow fibrous membrane filter core element designs, strengthen ceramic hollow fibrous membrane application intensity, it is achieved that modularization assembling in hollow-fibre membrane application process, simple and convenient.C (), compared with existing tubular type, multi-channel membrane assembly, ceramic hollow fibrous membrane assembly not only has relatively high permeating flux, and has higher filling area, promote hollow-fibre membrane process of industrialization.
Accompanying drawing explanation
Fig. 1 is ceramic hollow fibrous membrane filter core element schematic.
Fig. 2 is ceramic hollow fibrous membrane filter core element Perforated decking top view.
Fig. 3 is ceramic hollow fibrous membrane filter core element porous pedestal top view.
Fig. 4 is ceramic hollow fibrous membrane assembly securing cover plate top view.
Fig. 5 is for organic solvent osmotic, evaporating and dewatering ceramic hollow fibrous membrane component diagram.
Fig. 6 is ceramic hollow fibrous membrane filter core element band guiding gutter Perforated decking top view.
Fig. 7 is ceramic hollow fibrous membrane filter core element band guiding gutter porous pedestal top view.
Fig. 8 is for liquid separation of ceramic hollow fiber film assembly schematic diagram.
Wherein, 1, hollow fiber film tube；2, Perforated decking；3, porous pedestal；4, encapsulant；5, fenestra；6, housing；7, vacuum chamber；8, O；9, securing cover plate；10, vacuum hole；11, outage；12, charging hole；13, discharge opening；14, guiding gutter；15, end socket；16, the first feed liquid mouth；17；Second feed liquid mouth；18, the first housing outlets；19, the second housing outlets.
Detailed description of the invention
Below by detailed description of the invention, the present invention is described in further detail.It will be apparent, however, to one skilled in the art, that the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.Unreceipted concrete technology or condition person in embodiment, according to the technology described by the document in this area or condition or carried out according to product description.Agents useful for same or instrument unreceipted production firm person, be can by city available from conventional products.
Word used herein " includes ", " comprising ", " having " or its any other variant are intended to including of non-exclusionism.Such as, it is not necessarily limited by those key elements including listing the technique of key element, method, article or equipment, but can include that other are not expressly set out or belong to the key element that this technique, method, article or equipment are intrinsic.
The numerical value as range limit not only including clearly listing should be interpreted as using the value of range format expression in a flexible way, but also include containing all single numerical value within the range or subinterval, just as each numerical value and subinterval are expressly recited out.Such as, the concentration range of " about 0.1% to about 5% " should be understood to not only to include the concentration of about 0.1% to about 5% clearly listed, also include single concentration in the range of indication (as, 1%, 2%, 3% and 4%) and subinterval (such as, 0.1% to 0.5%, 1% to 2.2%, 3.3% to 4.4%).
Present invention firstly provides a kind of ceramic hollow fibrous membrane filter core element, its primary structure is as shown in Figures 1 to 3.Membrane component is mainly arranged to make up separating component by many hollow fiber film tubes 1 are parallel in pencil, additionally, also include Perforated decking 2, porous pedestal 3, Fig. 2 and Fig. 3 show Perforated decking 2 and the vertical view of porous pedestal 3 or upward view, Perforated decking 2 and porous pedestal 3 all offer fenestra 5, its effect is for inserting hollow fiber film tube 1, on Perforated decking 2 and porous pedestal 3, fenestra 5 position is consistent with each other, can enable inorganic hollow fibers pipe is pencil, it is installed on abreast between Perforated decking 2 and porous pedestal 3, Perforated decking and porous pedestal material can be polytetrafluoroethylene (PTFE), pottery or metal.
Installation process is that hollow fiber film tube 1 one end is inserted the fenestra of Perforated decking 2, it is inserted in the fenestra of porous pedestal 3, hollow fiber conduit is placed between Perforated decking 2 and porous pedestal 3, the diameter of fenestra is preferably slightly larger than the external diameter of hollow fiber film tube 1, film hole diameter can not be excessive, on the one hand can preferably be fixed wherein by carrier, on the other hand, convenient during subsequent step injecting sealing material 4, encapsulant 4 is difficult to flow into the gap between fenestra and membrane tube.Hollow fiber film tube 1 on the surface of porous pedestal 3 and fenestra adjacent position carry out pouring into a mould encapsulant 4 the most again, and encapsulant 4 can along plane drawout, and then make all to cover hollow fiber film tube 1 with the position contacted of fenestra.Used herein of encapsulant 4, as long as having certain mobility and being curable, can realize the purpose of the present invention, there is no particular limitation, such as: epoxy resin, organosilicon and ceramic sealant etc.；Curing mode can use curing agent, photocuring, be heating and curing.After making one end, the other end is made same sealing structure, makes the other end of hollow fiber film tube 1 seal with Perforated decking 2 phase, form hollow fiber membrane cartridge element after sealing, as shown in fig. 1.
Heretofore described ceramic hollow fibrous membrane pipe can be symmetric membrane, it is also possible to be anisotropic membrane；When using symmetric membrane, its material can be to make selected from ceramic materials such as aluminum oxide, zirconium oxide, mullite, titanium oxide, molecular sieves；When using anisotropic membrane, being by the film layer of Ceramic Hollow Fiber carrier He its surface, doughnut carrier can use the ceramic material of routine, and its film layer can be constituted with selective oxidation aluminium, titanium oxide, zirconium oxide or molecular sieve according to application system.
When being applied to the fields such as dehydration of organic solvent, molecular screen membrane can be used；And if when the assembly in the present invention is applied to liquid filtration, the ceramic material such as zirconium oxide, titanium oxide can be used to prepare film layer, it is applicable that milipore filter, NF membrane etc..
Ceramic material described in the present invention, it is possible to suitably select from existing known ceramic material.It is, for example possible to use aluminum oxide, zirconium oxide, magnesia, silica, titanium oxide, cerium oxide, yittrium oxide, the oxide material such as barium titanate；The combined oxidation species materials such as cordierite, mullite, forsterite, steatite, sialon, zircon, ferrite；Silicon nitride, aluminum nitride and other nitride class material；The carbon compound materials such as carborundum；The hydroxide composition materials such as hydroxyapatite；The element class material such as carbon, silicon；Or the two or more inorganic composite materials etc. containing them.The ceramic powders that natural minerals (clay, clay mineral, grog, silica sand, pottery stone, feldspar, white sand) or blast-furnace slag, flying dust etc. are constituted can also be used as main body.Wherein, more than the 50wt% (preferably more than 75wt%, more preferably 80wt%～100wt%) that expression ceramic powders mentioned here to " as main body " is overall is aluminum oxide or silica.
Described Ceramic Hollow Fiber carrier has less than or equal to 7 passages；Material is by α-Al2O3, YSZ (yttria-stabilized zirconia), TiO2In one or both composition, carrier external diameter is 1～5mm, and average pore size is 0.2～2.0 μm, and porosity is 25～55%.
In above-mentioned membrane component, described porous pedestal and Perforated decking are circle, and thickness is 1～3cm；Porous pedestal and Perforated decking are polytetrafluoroethylene (PTFE), pottery or metal material.
When film layer is nanofiltration specification, can be understood as the film that molecular cut off is 100～200000, owing to the aperture of NF membrane is too small and be difficult to measure the aperture on film surface with electron microscope etc., so replacing average pore size as the index of pore size by the value of referred to as molecular cut off.About molecular cut off, as described in the textbook of this area: " will with molecular weight solute as transverse axis, prevention rate as the longitudinal axis, the curve drawing data is referred to as molecular cut off curve.And the molecular weight that prevention rate is 90% is referred to as the molecular cut off of film ", molecular cut off, as the index of the film properties representing NF membrane, is well known to those skilled in the art.
When using molecular screen membrane, described molecular screen membrane is channel diameter zeolite molecular sieve membrane material between 2.8～7.4, and preferred molecular sieve film type is NaA type, MFI type, T-shaped, FAU type, MORT type, CHA type, DDR.
Many described ceramic hollow fibrous membrane pipe radicals are less than or equal to 200, and consistent with Perforated decking and porous pedestal fenestra number, membrane tube spacing is membrane tube external diameter 0.1-3 times.
Membrane component in the present invention can apply to liquid filtration, separation process, if NF membrane is except divalent salts, nanofiltration removing small organic molecule, nanofiltration concentration etc..
Additionally, the membrane component that the present invention provides mainly can apply to the fields such as molecular sieve film pervasion evaporating and dewatering, the surface of the steam and membrane component that have higher temperature contacts, water in steam can enter to inside molecular sieve membrane tube through film layer, therefore, time at relatively high temperatures, the height of encapsulant 4 or Density inhomogeneity can cause the uneven of its expanded by heating, and the present invention is mainly the hollow fiber molecular sieve that the diameter used is thinner, when molecular screen membrane be positioned at encapsulant 4 swell increment at upper and lower two ends there is difference time, it is easily caused hollow fiber molecular sieve by the uneven active force in upper and lower both sides, can cause rupturing because of unbalance stress under the high temperature conditions.Therefore, in the embodiment of an improvement of the present invention, as shown in Figure 6, porous pedestal 3 or Perforated decking 2 are further opened with guiding gutter 14 on the surface of molecular screen membrane side, when the effect of guiding gutter 14 is to make injecting sealing material, the encapsulant glue that can enable outside is the most internally flowed by guiding gutter 14, avoid encapsulant to need to intert between many root molecular screen membranes to detour, the most therefore encapsulant can also exist certain hardening time after injecting, so after accelerating its flowing, the problem inside and outside pockety caused because outer layer encapsulant first solidifies can be shortened, and then encapsulant after making the upper and lower two ends of molecular screen membrane finally solidify keep smooth unanimously, do not have the problem that stress after being heated is different.In an other embodiment, it is coated with high polymer layer in guiding gutter 14, owing to most encapsulant is hydrophobic property, contact angle on the surface of potsherd is bigger, it is not easy to sprawl, and after laminar flow groove 14 inside is coated polymer conducting shell, encapsulant compatibility on polymeric layer is good, contact angle is little, can sprawl quickly, and then improve encapsulant spreading rate on diaphragm.
Based on above-mentioned membrane component, present invention also offers a kind of assembly being mounted with this membrane component.This assembly can use membrane component mounting means customary in the art to be installed in the middle of membrane module, mainly the inner passage of hollow fiber film tube in membrane component is spaced with outside, using inner passage with membrane tube outer wall side as a tube side, the inner passage of such as hollow fiber film tube connects with end socket 15, penetrating fluid for will wherein obtain is drawn, and the outer wall side of hollow fiber film tube is connected with housing, housing arranges charging aperture, for sending into feedstock vapor to the tube side of the outside side of hollow fiber film tube.Fig. 5 show Ceramic Hollow Fiber molecular screen membrane assembly, and this assembly is mainly used in organic solvent osmotic, evaporating and dewatering.
In this assembly, it is installed on one end of porous pedestal 3 by end socket 15 and seals, making to be formed between end socket and porous pedestal 3 vacuum chamber 7, and it is provided with vacuum hole 10 on end socket, during use, by vacuumizing on vacuum hole 10, the inner tube making molecular screen membrane produces negative pressure, forms mass transfer force.Sealing between end socket and porous pedestal 3 is fixing is by arranging its plane of securing cover plate 9(inside end socket 15 as shown in Figure 4), and securing cover plate 9 is pressed on the edge of porous pedestal 3, (O material is silica gel, fluorine glue, tetrafluoro or graphite) is sealed between the two by O, and the external diameter of porous pedestal 3 is slightly wider, pressed on the convex rafter within housing 6, and then make membrane component fix in assembly.Housing 6 is also offered outage 11, charging hole 12 and discharge opening 13, material liquid can be entered from housing 6 outside, contact with membrane component surface, in this embodiment of Fig. 5, the duct of the molecular screen membrane of the other end (lower end in figure) of membrane component all can be sealed, make penetrating fluid can only flow out from vacuum chamber 7 one end；But, can not also be by the molecular screen membrane channel seal of this one end, i.e. according to same mode, this one end of Perforated decking 2 is also connected to a fixed with an end socket, and on the end socket of this side, it is also provided with negative pressure mouth, penetrating fluid the most just can be made can to flow out from two ends.Securing cover plate 9 and housing 6 material are to have the plastic material of some strength, such as polytetrafluoroethylene (PTFE), metal etc..
Additionally, if the membrane component in the employing present invention carries out liquid filtration, separating treatment, assembly as shown in Figure 8 can be used, assembly is installed in housing 6, and it is both provided with end socket 15 at the two ends of housing 6, this assembly is sealed by O 8 by end socket 15, make the passage at the two ends of hollow fiber conduit all be connected with end socket 15, the outer wall of hollow fiber conduit connects with housing 6, and end socket 15 is respectively provided with the first feed liquid mouth 16 and the second feed liquid mouth 17；First housing outlets 18 and/or the second housing outlets 19 is set on housing 6.In use, can be flowed into by material liquid and flow out from the second feed liquid mouth 17 from the first feed liquid mouth 16, under pressure-driven, penetrating fluid oozes out from tube wall, discharges from the first housing outlets 18 and/or the second housing outlets 19.
Embodiment 1
As it is shown in figure 1, Ceramic Hollow Fiber molecular screen membrane filter core element includes that the 58 single pass hollow fiber molecular sieve of NaA 1, porous pedestal 3, Perforated deckings 2 form.Doughnut NaA molecular sieve membrane pipe range 20cm, carrier is by α-Al2O3Composition, its external diameter is 3mm, and average pore size is 0.8 μm, and porosity is 35%.Porous pedestal and Perforated decking are circle, and thickness is 2cm, comprise 58 fenestras, and its material is ceramic alumina pottery.Hollow fiber molecular sieve pipe one end is inserted in base of ceramic fenestra by ceramic cover plate, and cast ceramics glue seals, and membrane cover plate perforate.Other end closed pore seals with Perforated decking fenestra and makes hollow fiber molecular sieve filter core element, and membrane tube spacing is 3mm, as shown in Figure 1.
Ceramic Hollow Fiber molecular screen membrane assembly is made up of Ceramic Hollow Fiber molecular screen membrane filter core element, securing cover plate 9 and housing.Being loaded by Ceramic Hollow Fiber molecular screen membrane filter core element in housing, use securing cover plate to fix, securing cover plate is circular, as shown in Figure 4.Sealed by silica gel O 8 between cover plate and filter core, make hollow fiber molecular sieve assembly.
Embodiment 2
Ceramic Hollow Fiber molecular screen membrane filter core element includes that 89 T-shaped single pass Ceramic Hollow Fiber molecular screen membranes 1, porous pedestal, Perforated decking form.The long 30cm of doughnut type T molecular sieve membrane tube, carrier is made up of YSZ, and its external diameter is 3.6mm, and average pore size is 0.6 μm, and porosity is 45%.Porous pedestal and Perforated decking are circle, and thickness is 1.5cm, comprise 89 fenestras, and its material is polytetrafluoroethylene (PTFE).Hollow fiber molecular sieve pipe one end is inserted in polytetrafluoroethylene (PTFE) pedestal fenestra by polytetrafluoroethylene (PTFE) cover plate, and casting epoxy resin glue seals, and film pedestal perforate.Other end closed pore seals with Perforated decking fenestra and makes hollow fiber molecular sieve filter core element, and membrane tube spacing is 4mm.
Being loaded by Ceramic Hollow Fiber molecular screen membrane filter core element in housing, use securing cover plate to fix, securing cover plate is circular.Sealed by graphite O between cover plate and filter core, make hollow fiber molecular sieve assembly.
Embodiment 3
Ceramic Hollow Fiber molecular screen membrane filter core element includes 126 single channel Ceramic Hollow Fiber MFI molecular sieve membrane tube, porous pedestal, Perforated deckings.Doughnut MFI molecular screen membrane pipe range 40cm, carrier is by TiO2Composition, its external diameter is 2mm, and average pore size is 1.0 μm, and porosity is 50%.Porous pedestal and Perforated decking are circle, and thickness is 1.5cm, comprise 126 fenestras.Doughnut MFI molecular sieve membrane tube one end is inserted in base of ceramic fenestra by ceramic cover plate, and casting epoxy resin seals, and membrane cover plate perforate.Other end closed pore seals with Perforated decking fenestra and makes hollow fiber molecular sieve filter core element, and membrane tube spacing is 4mm.
Being loaded by Ceramic Hollow Fiber molecular screen membrane filter core element in housing, use securing cover plate to fix, securing cover plate is circular.Sealed by tetrafluoro O between cover plate and filter core, make hollow fiber molecular sieve assembly.
Embodiment 4
Difference with embodiment 3 is: porous pedestal 4 and Perforated decking 3 are further opened with guiding gutter 16, guiding gutter 16 width 1mm on the surface of molecular screen membrane side, are wherein coated with high polymer layer.
Claims (10)
1. a ceramic hollow fibrous membrane filter core element, it is characterized in that: include Perforated decking (2) and porous pedestal (3), many parallel hollow fiber film tubes (1) it are provided with between Perforated decking (2) and porous pedestal (3), hollow fiber film tube (1) is socketed in the fenestra (5) on Perforated decking (2) and porous pedestal (3), it is both provided with the encapsulant (4) of stratiform towards the side of hollow fiber film tube (1) at Perforated decking (2) and porous pedestal (3), encapsulant (4) is by the sealing gap between hollow fiber film tube (1) and fenestra (5).
Ceramic hollow fibrous membrane filter core element the most according to claim 1, it is characterised in that: described Perforated decking (2) material is polytetrafluoroethylene (PTFE), pottery or metal；Porous pedestal (3) material is polytetrafluoroethylene (PTFE), pottery or metal.
Ceramic hollow fibrous membrane filter core element the most according to claim 1, it is characterised in that: described hollow fiber film tube (1) is to be made up of Ceramic Hollow Fiber carrier and film layer；Described Ceramic Hollow Fiber carrier has less than or equal to 7 passages；Described film layer refers to molecular screen membrane or the NF membrane prepared by ceramic material.
Ceramic hollow fibrous membrane filter core element the most according to claim 3, it is characterised in that: described Ceramic Hollow Fiber carrier is by α-Al2O3、YSZ、TiO2In one or both composition, its external diameter is 1～5mm, and average pore size is 0.2～2.0 μm, and porosity is 25～55%；Described molecular screen membrane is channel diameter zeolite molecular sieve membrane material between 2.8～7.4；Described hollow fiber film tube (1) length is between 20 ~ 100cm.
Ceramic hollow fibrous membrane filter core element the most according to claim 1, it is characterised in that: the equal perforate in described hollow fiber membrane cartridge element two ends or wherein one end perforate.
Ceramic hollow fibrous membrane filter core element the most according to claim 1, it is characterised in that: described encapsulant is epoxy resin, organosilicon or ceramic sealant；The radical of described hollow fiber film tube (1) is less than or equal to 200, and consistent with the quantity of the fenestra (5) on porous pedestal and Perforated decking fenestra, the spacing of membrane tube is 0.1～3 times of membrane tube external diameter；Perforated decking (2) and porous pedestal (3) are further opened with guiding gutter (14) in the one side of hollow fiber film tube (1), and guiding gutter is also coated with high polymer layer in (14).
7. include the membrane module of ceramic hollow fibrous membrane filter core element any one of claim 1～6.
Membrane module the most according to claim 7, it is characterized in that: membrane module includes housing (6), ceramic hollow fibrous membrane filter core element is positioned in housing (6), ceramic hollow fibrous membrane filter core element one end is closed, the other end is connected with the end socket (15) on housing (6), end socket (15) is provided with vacuum hole (10), O (8) is set between end socket (15) and filter core element to realize the sealing between end socket (15) and housing (6).
Membrane module the most according to claim 8, it is characterised in that: it is additionally provided with charging hole (12) and discharge opening (13) on described housing (6)；The lower section of housing (6) is additionally provided with outage (11), and the material of described O (8) is silica gel, fluorine glue, tetrafluoro or graphite.
Membrane module the most according to claim 8, it is characterized in that: membrane module includes housing (6), ceramic hollow fibrous membrane filter core element is positioned in housing (6), the two ends of housing (6) are both provided with end socket (15), ceramic hollow fibrous membrane filter core element two ends perforate, passage is connected with end socket (15), it is respectively arranged with the first feed liquid mouth (16) and the second feed liquid mouth (17) on end socket, O (8) is set between end socket (15) and filter core element to realize the sealing between end socket (15) and housing (6)；The first housing outlets (18) and/or the second housing outlets (19) it is respectively arranged with on housing.
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| CN109663506A (en) * | 2018-08-16 | 2019-04-23 | 南京工业大学 | A kind of regular polygon hollow fiber film assembly and its manufacturing method |
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| CN109663506B (en) * | 2018-08-16 | 2024-04-19 | 江苏旭一高科技有限公司 | Regular polygon hollow fiber membrane component and manufacturing method thereof |
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