CN105502299A - Radio-frequency radiation production line for quickly preparing aerogel powder - Google Patents
Radio-frequency radiation production line for quickly preparing aerogel powder Download PDFInfo
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- CN105502299A CN105502299A CN201610083622.4A CN201610083622A CN105502299A CN 105502299 A CN105502299 A CN 105502299A CN 201610083622 A CN201610083622 A CN 201610083622A CN 105502299 A CN105502299 A CN 105502299A
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- 230000005855 radiation Effects 0.000 title claims abstract description 73
- 239000004964 aerogel Substances 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 48
- 239000000843 powder Substances 0.000 title claims abstract description 27
- 230000032683 aging Effects 0.000 claims abstract description 60
- 238000001035 drying Methods 0.000 claims abstract description 22
- 238000006467 substitution reaction Methods 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 30
- 238000012806 monitoring device Methods 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 15
- 238000001694 spray drying Methods 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000007601 warm air drying Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 235000011089 carbon dioxide Nutrition 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002923 metal particle Substances 0.000 claims description 2
- 229910052754 neon Inorganic materials 0.000 claims description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 8
- 230000004048 modification Effects 0.000 abstract description 7
- 238000012986 modification Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001930 tungsten oxide Inorganic materials 0.000 description 2
- 239000004966 Carbon aerogel Substances 0.000 description 1
- 239000004965 Silica aerogel Substances 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 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
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- 239000007783 nanoporous material Substances 0.000 description 1
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000000352 supercritical drying Methods 0.000 description 1
- GWYXTVGANSBRNB-UHFFFAOYSA-N terbium(iii) oxide Chemical compound O=[Tb]O[Tb]=O GWYXTVGANSBRNB-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
Abstract
The invention relates to a radio-frequency radiation production line for quickly preparing aerogel powder. The radio-frequency radiation production line comprises a sol-gel equipment system, an aging equipment system, a replacement modification equipment system and a drying equipment system. The aging equipment system and the replacement modification equipment system are provided with bent gel conveying pipelines, and a radio-frequency radiation generator is arranged in an external space of the gel conveying pipelines. According to the production line, the technological processes of aging and replacement modification for aerogel preparation can be quickened, and continuous, closed and automatic production for the aerogel powder is realized, so that the production line is an efficient and safe aerogel powder large-scale production manner.
Description
Technical field
The present invention relates to a kind of aerogel powder production line, particularly a kind of radio-frequency radiation prepares aerogel powder production line fast.
Background technology
Aerogel is a kind of novel nano-porous materials, because having the peculiar performance such as ultra-low thermal conductivity, low density, low-k, low-refraction and high-specific surface area, high-insulativity, high light transmittance, demonstrate the characteristic of many mysteries in fields such as calorifics, optics, electricity, chemistry, acoustics, be called as the magical material changing the world.
The production technology of current aerogel mainly comprises supercritical drying production technology and constant pressure and dry production technology, although through the development of more than 10 years, production technique is updated and perfect, production efficiency improves constantly, no matter but domestic or overseas enterprise substantially all or step semi-automation produce, also do not have enterprise can accomplish the fully-automatic production of continous way in industry.Major cause is that workshop section's time of traditional aerogel production technique is longer, and particularly aging workshop section and modification workshop section, often reach more than 10 hours and even a couple of days, and this brings very large obstruction to the linking of each workshop section.Therefore, current each aerogel manufacturing enterprise mainly promotes by the linking adjusting the combination of each production workshop section number of devices and optimize each workshop section the efficiency that whole aerogel produces, and then reduces costs.
The intermittent semi-automatic mode of production, not only hinder the lifting of production efficiency, because workshop section's linking link is many, execute-in-place workman is many, also be unfavorable for the control of quality product, the control of cost of labor, easily because the guarantee of security incident to field staff's life security that the organism such as personnel's mishandle or ethanol are revealed or equipment failure causes constitutes a threat in production process.
For overcoming the above problems, the present invention proposes a kind of brand-new aerogel powder fast production lines technology.
Summary of the invention
A kind of radio-frequency radiation prepares aerogel powder production line fast, and its major equipment is composed as follows:
(1) sol-gel device systems;
Described sol-gel device systems, comprises supplementary material storage tank, colloidal sol mixing tank and gel transfer tank;
(2) aging equipment system;
Described aging equipment system, comprises Ageing solution storage tank, radio-frequency radiation rapid ageing equipment and equipment for separating liquid from solid;
(3) substitution device systems;
Described substitution device systems, comprises substitution liquid storage tank, radio-frequency radiation Rapid replacement modified device and equipment for separating liquid from solid;
(4) drying equipment system;
Described drying equipment system, is made up of spray-drying tower, separator, fly-ash separator, condenser, condensate tank, heater blower.
Described radio-frequency radiation, the operating frequency of radio frequency is 300KHz ~ 300GHz, and radio frequency power output is 250W ~ 1000kW.
Described colloidal sol mixing tank, comprises the reactor of band stirring or online line mixer.
Described radio-frequency radiation rapid ageing equipment or radio-frequency radiation Rapid replacement modified device, have tortuous gel conveying pipe, and the space outerpace of gel conveying pipe is furnished with radio-frequency radiation producer.
Described radio-frequency radiation rapid ageing equipment or radio-frequency radiation Rapid replacement modified device, the material of gel conveying pipe is polymkeric substance or ceramic or glass.
Described radio-frequency radiation rapid ageing equipment or radio-frequency radiation Rapid replacement modified device, the single or multiple lift floor plan that gel conveying pipe is connected before and after can being, the single-row or multiple row facade be connected before and after also can being is arranged.
Described aging equipment system and substitution device systems, Ageing solution is sealing and circulating in Ageing solution storage tank, radio-frequency radiation rapid ageing equipment and equipment for separating liquid from solid, and substitution liquid is sealing and circulating in substitution liquid storage tank, radio-frequency radiation Rapid replacement modified device and equipment for separating liquid from solid; Aging equipment system and substitution device systems as independent means system tandem, also can be integrated into a set of equipment system.
Described drying equipment system, wherein spray-drying tower, can only adopt rare gas element warm air drying, and radio frequency generators can also be adopted to send radio-frequency radiation drying and rare gas element warm air drying combination drying.
Described radio-frequency radiation prepares aerogel powder production line fast, has rare gas element sealing and circulating in gel device systems, aging equipment system, substitution device systems and drying equipment system; Rare gas element comprises one or more in nitrogen, carbonic acid gas, helium, argon gas, neon.
Described radio-frequency radiation prepares aerogel powder production line fast, has monitoring device and automatic control device; Monitoring device comprises one or more in metal monitoring device, device for detecting temperature, oxygen concentration monitor and organic gas monitoring device, the metal particle size range of metal monitoring device monitoring is for being greater than 0.1mm, the temperature range of device for detecting temperature monitoring is-50 ~ 300 DEG C, and the oxygen ranges of oxygen concentration monitor monitoring is 0.01% ~ 25%; Automatic control device comprises DCS Controlling System device or safety interlock, and the control inerface of automatic control device can away from job site; Radio frequency generators, equipment work motor can realize long-range or on-the-spot automatic control, safety interlocking by monitoring device and automatic control device or stop in emergency.
Described sol-gel device systems comprises gel transfer tank, can guarantee there is sufficient gel in continuous prodution process like this, promotes production run stability and persistence.
Described radio-frequency radiation rapid ageing equipment or radio-frequency radiation Rapid replacement modified device, there is tortuous gel conveying pipe, the single or multiple lift floor plan that gel conveying pipe is connected before and after can being, the single-row or multiple row facade be connected before and after also can being is arranged.Make pipeline inner gel have sufficient space and time to accept the radiation of radio frequency, completed aging and technological process that is substitution quickly and evenly.
Because of the difference of sol-gel material and proportioning, aging and substitution technological process can be carried out simultaneously sometimes, at this moment aging equipment system and substitution device systems can be integrated into single complete equipment system.
Described radio-frequency radiation rapid ageing equipment or radio-frequency radiation Rapid replacement modified device, the material of gel conveying pipe is polymkeric substance or ceramic or glass, both the organic gas played in effective isolation inner bag enters space outerpace with acid, alkaline constituents etc., eliminate safe hidden trouble, improve the Working environment of the parts such as radio frequency generators, radio frequency generators can also be allowed to send radio frequency effectively penetrate and act on gel and correlative, promote radio-frequency radiation utilization ratio.
Drying equipment system have employed the comparatively efficient ripe spray drying device in current powder drying field, and adopt rare gas element as hot blast medium, sealing and circulating is dry, can guarantee the security in drying process.
Described radio-frequency radiation prepares aerogel powder production line fast, adopts rare gas element to carry out gas displacement to sol-gel device systems, aging equipment system, substitution device systems and drying equipment system before driving simultaneously.
Described radio-frequency radiation prepares aerogel powder production line fast, has monitoring device and automatic control device, significantly improves the gentle security level control of Automated water of production.
Radio-frequency radiation prepares the effect playing two aspects fast to aerogel, one is heat effect, and two is chemical actions.Because often containing moisture, ethanol-diluent isopolarity molecule in supplementary material prepared by aerogel, under fast-changing radio-frequency field (300KHz ~ 300GHz) effect, change along with external radio frequency field changes by its polarity orientation, cause the spin motion effect of polar molecule, now the field energy of radio-frequency field is converted into the heat energy in medium, temperature of charge is raised, and reaches the object of radio frequency heating.
The chemical action of radio-frequency radiation is very complicated, also existing a kind of except having heat effect is not the non-thermal effect caused by temperature, it can change the kinetic property of reaction, reduce the activation energy of reaction, accelerate the exchanges of mass and energy of storeroom, and then quickening reaction process, significantly shorten the technological reaction time.In the present invention, radio-frequency radiation all serves significant effect in the technological process of aging workshop section prepared by acceleration aerogel and substitution workshop section.
Beneficial effect
Compared with prior art, radio-frequency radiation of the present invention is prepared aerogel powder production line fast and is had following significant advantage:
1) production efficiency significantly promotes.Conventional supercritical fluid drying process or constant pressure and dry explained hereafter aerogel often need the tens of hours time to a couple of days, adopt the present invention can complete full scale production flow process in 1 ~ 5h.
2) continuous full-automatic can be realized produce.Instant invention overcomes conventional production lines can only intermittent semi-automaticization produce a difficult problem, can realize continuous full-automatic produce, and even realize produce unmanned, will greatly promote automatization and the intellectuality of aerogel industry production level.
3) control and the production safety guarantee of quality product is conducive to.Of the present invention increasingly automated, material all runs in airtight pipeline or equipment, be easy to the consistence guaranteeing product each batch of quality, very big minimizing plant site operator, avoid the contact probability of the hazardous chemicals such as personnel's mishandle, minimizing personnel and ethanol, the significant increase life security guarantee of site operation personnel.
4) the present invention is applicable to the production of Multiple components aerogel powder.Except traditional silica aerogel, the present invention is also applicable to carbon aerogels, alumina aerogels, zirconia aerogels, titania aerogel, ferric oxide aerogel, Tungsten oxide 99.999 aerogel, vanadium oxide aerogel, strontium oxide aerogel, magnesium oxide aerogel, cupric oxide aerogel, Indium sesquioxide aerogel, gallium oxide aerogel, stannic oxide aerogel, bismuth oxide aerogel, manganese oxide aerogel, cobalt oxide aerogel, nickel oxide aerogel, zinc oxide aerogel, Cadmium oxide aerogel, chromic oxide aerogel, Tungsten oxide 99.999 aerogel, yttrium oxide aerogel, Scium trioxide aerogel, cerium oxide aerogel, lanthanum trioxide aerogel, europium sesquioxide aerogel, Neodymium trioxide aerogel, terbium sesquioxide aerogel, Praseodymium trioxide aerogel, the aerogel powders such as Samarium trioxide aerogel are produced.
Accompanying drawing explanation
Fig. 1 radio-frequency radiation prepares the equipment composition schematic diagram of aerogel powder production line fast;
Fig. 2 radio-frequency radiation Rapid replacement modified device faces structural representation;
Fig. 3 radio-frequency radiation replaces quick modified device plan structure schematic diagram;
Structural representation faced by Fig. 4 spray-drying tower.
In Fig. 1,1 ~ 3 composition sol-gel device systems, wherein 1 is supplementary material storage tank, and 2 is colloidal sol mixing tank, and 3 is gel transfer tank; 4 ~ 6 composition aging equipment systems, wherein 4 be Ageing solution storage tank, and 5 be radio-frequency radiation rapid ageing equipment, 6 is equipment for separating liquid from solid; 7 ~ 9 composition substitution device systems, wherein 7 for changing modification liquid storage tank, and 8 is radio-frequency radiation Rapid replacement modified device, and 9 is equipment for separating liquid from solid; 10 ~ 14 composition drying equipment systems, wherein 10 be spray-drying tower, and 11 is separator, and 12 is fly-ash separator, and 13 is condenser, 14 be condensate tank, 15 be heater blower.
Because radio-frequency radiation rapid ageing equipment 5 is identical with the structure of radio-frequency radiation Rapid replacement modified device 8, Fig. 2 and Fig. 3 forms for radio-frequency radiation Rapid replacement modified device 8 devices illustrated, wherein 16 is gel conveying pipe, and 17 is radio frequency generators, and 18 is monitoring device and automatic control device.
In Fig. 4,17 is radio frequency generators, and 18 is monitoring device and automatic control device, and 19 is centrifugal atomizer.
Embodiment
Also prepare aerogel powder production line fast to radio-frequency radiation of the present invention by specific embodiment below in conjunction with accompanying drawing to be further described in more detail.
As shown in Figure 1, radio-frequency radiation of the present invention prepares aerogel powder production line fast, comprises supplementary material storage tank 1, colloidal sol mixing tank 2, gel transfer tank 3, Ageing solution storage tank 4, radio-frequency radiation rapid ageing equipment 5, equipment for separating liquid from solid 6, substitution liquid storage tank 7, radio-frequency radiation Rapid replacement modified device 8, equipment for separating liquid from solid 9, spray-drying tower 10, separator 11, fly-ash separator 12, condenser 13, condensate tank 14, heater blower 15.
Because radio-frequency radiation rapid ageing equipment 5 is identical with the structure of radio-frequency radiation Rapid replacement modified device 8, Fig. 2 and Fig. 3 forms for radio-frequency radiation Rapid replacement modified device 8 devices illustrated, comprise gel conveying pipe 16, radio frequency generators 17, monitoring device and automatic control device 18.
Fig. 4 spray-drying tower 10 face structural representation, comprise radio frequency generators 17, monitoring device and automatic control device 18, centrifugal atomizer 19.
Described radio-frequency radiation rapid ageing equipment or radio-frequency radiation Rapid replacement modified device, there is tortuous gel conveying pipe, the single or multiple lift floor plan that gel conveying pipe is connected before and after can being, the single-row or multiple row facade be connected before and after also can being is arranged.Pipeline inner gel can be made to have sufficient space and time to accept the radiation of radio frequency, completed aging and technological process that is substitution quickly and evenly.
Because of the difference of sol-gel material and proportioning, aging and substitution technological process can be carried out simultaneously sometimes, at this moment aging equipment system and substitution device systems can be integrated into single complete equipment system.
Described radio-frequency radiation prepares aerogel powder production line fast, has monitoring device and automatic control device, significantly improves the gentle security level control of Automated water of production.
Below in conjunction with a production instance of silicon dioxide aerogel powder, further illustrate the present invention:
First the inert gas replacement of each device systems of production line is carried out.As adopted nitrogen to carry out gas displacement to sol-gel device systems, aging equipment system, substitution device systems and drying equipment system simultaneously, when each device systems oxygen concn lower than 2% time start to feed intake.
By from supplementary material storage tank 1 through dilution, to go deimpurity water glass silicon source solid content to be 8% silicon sol and concentration be the ammoniacal liquor of 5%, in colloidal sol mixing tank 2, after mixing, pH value is 5.5, injects gel transfer tank 3 from upper end, prepares to enter aging process.
Injected the gel conveying pipe 16 of radio-frequency radiation rapid ageing equipment 5 from gel transfer tank 3 by spiral pump, from Ageing solution storage tank 4, pump into Ageing solution (ethanol and water mixture) simultaneously, Ageing solution is preheating to 40 DEG C through interchanger before entering gel conveying pipe 16, in gel conveying pipe 16, gel and Ageing solution volume ratio are approximately 1:3, start radio frequency generators 17, the operating frequency of radio frequency is operating frequency is 915MHz, power is between 60 ~ 100kw, guarantee that the temperature that the temperature-detecting device of monitoring device 18 feeds back is 45 ~ 70 DEG C, after about 30 minutes, gel completes aging, being separated of gel and Ageing solution is carried out at equipment for separating liquid from solid 6, Ageing solution blowback Ageing solution storage tank 4, gel is transported to radio-frequency radiation Rapid replacement modified device 8, preparation enters substitution operation.
Substitution liquid (normal hexane is pumped into from substitution liquid storage tank 7 to gel conveying pipe 16, sulfuric acid and hexamethyldisilazane mixture), substitution liquid is preheating to 55 DEG C through interchanger before entering gel conveying pipe 16, in gel conveying pipe 16, gel and substitution liquid volume ratio are approximately 1:3, start radio frequency generators 17, the operating frequency of radio frequency is operating frequency is 2450MHz, power is between 70 ~ 100kw, guarantee that the temperature that the temperature-detecting device of monitoring device 18 feeds back is 60 ~ 75 DEG C, after about 30 minutes, gel completes substitution, being separated of gel and substitution liquid is carried out at equipment for separating liquid from solid 9, substitution liquid pump returns substitution liquid storage tank 7, gel is transported to spray-drying tower 10, preparation enters drying process.
Complete the gel of substitution, under the pressure promotion that the temperature through heater blower 15 preheating is the carbon dioxide of 110 DEG C, the gel completing substitution enters spray-drying tower 10 by centrifugal atomizer 19 and carries out drying, complete the collection of aerogel powder again through separator 11, fly-ash separator 12, after condenser 13 cooling liquid, enter condensate tank 14 from the substitution liquid gas of gel evaporation and reclaim stand-by.
In production process, monitoring device and the work of self-con-tained unit 18 whole process, once monitor organic gas effusion in the gel conveying pipe 16 of radio-frequency radiation rapid ageing equipment 5 or radio-frequency radiation Rapid replacement modified device 8 or spray-drying tower 10, or gas temperature exceeds standard or oxygen concn exceeds standard or monitors metallic particles in gel conveying pipe 16 or spray-drying tower 10, automatic control device 18 is by startup safety interlocking or stop in emergency.
Thus, the quick production aerogel powder of the airtight increasingly automated level of continous way can be realized by the present invention.
Above-described embodiment only illustrates inventive concept of the present invention for explaining; but not the restriction to rights protection of the present invention; every above embodiment is done according to techniques and methods essence of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of techniques and methods scheme of the present invention.
Claims (10)
1. radio-frequency radiation prepares an aerogel powder production line fast, it is characterized in that, major equipment is composed as follows:
(1) sol-gel device systems;
Described sol-gel device systems, comprises supplementary material storage tank, colloidal sol mixing tank and gel transfer tank;
(2) aging equipment system;
Described aging equipment system, comprises Ageing solution storage tank, radio-frequency radiation rapid ageing equipment and equipment for separating liquid from solid;
(3) substitution device systems;
Described substitution device systems, comprises substitution liquid storage tank, radio-frequency radiation Rapid replacement modified device and equipment for separating liquid from solid;
(4) drying equipment system;
Described drying equipment system, is made up of spray-drying tower, separator, fly-ash separator, condenser, condensate tank, heater blower.
2. radio-frequency radiation as claimed in claim 1, it is characterized in that, the operating frequency of radio frequency is 300KHz ~ 300GHz, and radio frequency power output is 250W ~ 1000kW.
3. colloidal sol mixing tank as claimed in claim 1, is characterized in that, comprises the reactor of band stirring or online line mixer.
4. radio-frequency radiation rapid ageing equipment as claimed in claim 1 or radio-frequency radiation Rapid replacement modified device, it is characterized in that having tortuous gel conveying pipe, the space outerpace of gel conveying pipe is furnished with radio-frequency radiation producer.
5. radio-frequency radiation rapid ageing equipment as claimed in claim 1 or radio-frequency radiation Rapid replacement modified device, is characterized in that, the material of gel conveying pipe is polymkeric substance or ceramic or glass.
6. radio-frequency radiation rapid ageing equipment as claimed in claim 1 or radio-frequency radiation Rapid replacement modified device, it is characterized in that, the single or multiple lift floor plan that gel conveying pipe is connected before and after can being, the single-row or multiple row facade be connected before and after also can being is arranged.
7. aging equipment system as claimed in claim 1 and substitution device systems, it is characterized in that, Ageing solution is sealing and circulating in Ageing solution storage tank, radio-frequency radiation rapid ageing equipment and equipment for separating liquid from solid, and substitution liquid is sealing and circulating in substitution liquid storage tank, radio-frequency radiation Rapid replacement modified device and equipment for separating liquid from solid; Aging equipment system and substitution device systems as independent means system tandem, also can be integrated into a set of equipment system.
8. drying equipment system as claimed in claim 1, it is characterized in that, spray-drying tower can only adopt rare gas element warm air drying, and radio frequency generators can also be adopted to send radio-frequency radiation drying and rare gas element warm air drying combination drying.
9. radio-frequency radiation prepares aerogel powder production line fast as claimed in claim 1, it is characterized in that, have rare gas element sealing and circulating in gel device systems, aging equipment system, substitution device systems and drying equipment system, rare gas element comprises one or more in nitrogen, carbonic acid gas, helium, argon gas, neon.
10. radio-frequency radiation prepares aerogel powder production line fast as claimed in claim 1, it is characterized in that, has monitoring device and automatic control device; Monitoring device comprises one or more in metal monitoring device, device for detecting temperature, oxygen concentration monitor and organic gas monitoring device, the metal particle size range of metal monitoring device monitoring is for being greater than 0.1mm, the temperature range of device for detecting temperature monitoring is-50 ~ 300 DEG C, and the oxygen ranges of oxygen concentration monitor monitoring is 0.01% ~ 25%; Automatic control device comprises DCS Controlling System device or safety interlock, and the control inerface of automatic control device can away from job site; Radio frequency generators, equipment work motor can realize long-range or on-the-spot automatic control, safety interlocking by monitoring device and automatic control device or stop in emergency.
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| CN201610083622.4A CN105502299A (en) | 2016-02-13 | 2016-02-13 | Radio-frequency radiation production line for quickly preparing aerogel powder |
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| CN201610083622.4A CN105502299A (en) | 2016-02-13 | 2016-02-13 | Radio-frequency radiation production line for quickly preparing aerogel powder |
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| CN109529735A (en) * | 2018-11-22 | 2019-03-29 | 江西宏柏新材料股份有限公司 | The method for producing the microwave all-in-one machine and continuous production aerogel material of aerogel material |
| CN109794207A (en) * | 2019-03-13 | 2019-05-24 | 深圳中凝科技有限公司 | Without liner gel reforming apparatus and method |
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