CN209113767U - Silicon dioxide silica aerogel composite material production system - Google Patents
Silicon dioxide silica aerogel composite material production system Download PDFInfo
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- CN209113767U CN209113767U CN201821759001.4U CN201821759001U CN209113767U CN 209113767 U CN209113767 U CN 209113767U CN 201821759001 U CN201821759001 U CN 201821759001U CN 209113767 U CN209113767 U CN 209113767U
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Abstract
The utility model relates to a kind of silicon dioxide silica aerogel composite material production systems, including batching modes, die-filling module, impregnate module, thermally conductive air-inlet grille setup module, supercritical drying module and thermally conductive air-inlet grille take out module, the combination of these module science, by the way that thermally conductive air-inlet grille is arranged to fibrofelt before die-filling module is die-filling to fibrofelt, or thermally conductive air-inlet grille is arranged to plural gel after dipping module obtains plural gel, overflow channel of these thermally conductive air-inlet grilles after plural gel enters supercritical drying module as supercritical fluid, it is greatly improved the heat exchange efficiency of supercritical fluid and plural gel in supercritical drying process, shorten the drying time of plural gel, to greatly shorten the production cycle of silicon dioxide silica aerogel composite material, improve production efficiency.
Description
Technical field
The utility model relates to aeroge production technical fields, more particularly to a kind of silicon dioxide silica aerogel composite material
Production system.
Background technique
Aeroge is known most light solid material in the world, sturdy and durable because it is with extremely low thermal coefficient, resistance to
High temperature, it is explosion-proof the features such as, aerospace, defence and military, green building, performance source, environmental improvement, solar thermal utilization etc. lead
Domain has a wide range of applications.The magical material for referred to as changing the world, has been included in 10 big hot topic sections since the 1990s
One of technology is the dual-use technology that there are huge applications to be worth.
Aeroge mainly has aerosil, alumina aerogels, zirconia aerogels and carbon gas because of ingredient difference
Gel etc..Currently, the heat-insulating property of aerosil is the most noticeable, and technology is also the most mature, domestic and international aeroge
Industrialized development surround mostly aerosil insulation application start.
The production system of traditional aerosil includes with the modules such as glue, gel, supercritical drying processing, the life
The features such as production system is long there are the production cycle, and production efficiency is low is increasingly difficult to the need to meet people to aerosil
It asks.
Utility model content
Based on this, it is necessary to it is raw to provide a kind of silicon dioxide silica aerogel composite material with short production cycle, high production efficiency
Production system.
A kind of silicon dioxide silica aerogel composite material production system, comprising:
Batching modes are used to form silicon dioxide gel；
Die-filling module, for fibrofelt is die-filling；
Module is impregnated, is impregnated in the silicon dioxide gel for the fibrofelt after will be die-filling, is stood, seal aging,
Obtain the plural gel of fiber and silica；
Thermally conductive air-inlet grille setup module is used for before the die-filling module is die-filling to the fibrofelt to the fiber
It is described compound solidifying for obtaining in the dipping module that thermally conductive air-inlet grille or the thermally conductive air-inlet grille setup module is arranged in felt
Thermally conductive air-inlet grille is arranged to the plural gel after glue；
Supercritical drying module, the plural gel for that will be equipped with the thermally conductive air-inlet grille carry out supercritical drying, obtain
To the silicon dioxide silica aerogel composite material for being equipped with the thermally conductive air-inlet grille；
Thermally conductive air-inlet grille takes out module, for that will be equipped with the aerosil composite wood of the thermally conductive air-inlet grille
Thermally conductive air-inlet grille in material takes out, and obtains silicon dioxide silica aerogel composite material.
Above-mentioned silicon dioxide silica aerogel composite material production system by batching modes, die-filling module, impregnates module, thermally conductive
Air-inlet grille setup module, supercritical drying module and thermally conductive air-inlet grille take out the combination of module science, by die-filling module
Thermally conductive air-inlet grille is arranged to fibrofelt before die-filling to fibrofelt, or to compound after dipping module obtains plural gel
Thermally conductive air-inlet grille is arranged in gel, these thermally conductive air-inlet grilles are after plural gel enters supercritical drying module as overcritical
The overflow channel of fluid is greatly improved the heat exchange efficiency of supercritical fluid and plural gel in supercritical drying process, shortens
The drying time of plural gel improves production efficiency to greatly shorten the production cycle of silicon dioxide silica aerogel composite material.
The thermally conductive air-inlet grille is hollow tube at least open at one end in one of the embodiments,.
The through-hole of connection hollow region is additionally provided on the tube wall of the hollow tube in one of the embodiments,.
The production system in one of the embodiments, further include:
Heat exchange module, for the high temperature alcohol steam of cooling water and supercritical drying module generation to be exchanged heat, with
Obtain distilled water and alcoholic solvent after cooling.
The heat exchange module includes: in one of the embodiments,
Internal coil-tube type distilled water device, for carrying out the cooling water and the high temperature alcohol steam in its coil pipe
Heat exchange, to obtain the alcohol steam after distilled water and heat exchange；
Condenser obtains alcoholic solvent after cooling for cooling down the alcohol steam after the heat exchange.
The production system in one of the embodiments, further include:
Decoloration module, for the alcoholic solvent after cooling to decolourize.
The decoloration module includes: in one of the embodiments,
Inorfil preliminary filter, the fiber removal for will be carried in the alcoholic solvent after cooling；
Bag filter, the silica removal for will be carried in the alcoholic solvent after cooling；
Active carbon filter, for the alcoholic solvent after cooling to decolourize.
The decoloration module is connected with the batching modes in one of the embodiments, for will be after the decoloration
Alcoholic solvent is passed through the batching modes to recycle.
The supercritical drying module includes heating plant and supercritical reaction apparatus in one of the embodiments,；
The heating plant, for being heated to the supercritical reaction apparatus, so that in the supercritical reaction apparatus
Temperature and pressure reaches in plural gel more than the supercritical temperature of alcoholic solvent and pressure.
The supercritical drying module further includes cooling device in one of the embodiments, for described overcritical anti-
Device is answered to be cooled down.
Detailed description of the invention
Fig. 1 is the silicon dioxide silica aerogel composite material production procedure schematic diagram of an embodiment；
Fig. 2 is the structural schematic diagram of the thermally conductive air-inlet grille of an embodiment；
Fig. 3 is distribution schematic diagram of the thermally conductive air-inlet grille of an embodiment in the fibrofelt of expansion；
Fig. 4 is distribution schematic diagram of the thermally conductive air-inlet grille of an embodiment in the fibrofelt after rewinding；
Fig. 5 is the schematic diagram of the thermally conductive air-inlet grille of another embodiment.
Specific embodiment
The utility model will be described more fully below for the ease of understanding the utility model, and give this
The preferred embodiment of utility model.But the utility model can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is makes the understanding to the disclosure of the utility model more
It is thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" includes
Any and all combinations of one or more related listed items.
Referring to Fig. 1, the aerosil production system of an embodiment, comprising: batching modes 10, die-filling module
20, impregnate module 30, thermally conductive air-inlet grille setup module 40, supercritical drying module 50, thermally conductive air-inlet grille take out module 60,
Heat exchange module 70 and decoloration module 80.
Further, batching modes 10 are used to form silicon dioxide gel.
Specifically, in the present embodiment, batching modes 10 include organosilicon storage tank, ethanol storage tank, distillation water storage tank, acid
Catalyst storage tank, base catalyst storage tank and colloidal sol preparing tank, and organosilicon storage tank, ethanol storage tank, distillation water storage tank, acid catalyst
Storage tank and base catalyst storage tank are connected with colloidal sol preparing tank respectively, carry out the hydrolysis under acid condition in ethanol for organosilicon
Reaction carries out polycondensation reaction under alkaline condition again, obtains silicon dioxide gel.
In the present embodiment, batching modes 10 further include automatic gauge device, for controlling each raw material additional amount.
It is appreciated that batching modes 10 are not limited to structure described above, and in other embodiments, batching modes 10
It can also be other structures, as long as aerosil can be obtained.
Further, die-filling module 20, for fibrofelt is die-filling.
Specifically, in the present embodiment, die-filling module 20 is used for fibrofelt rewinding in dipping arbor.
Module 30 is impregnated, is impregnated in silicon dioxide gel for the fibrofelt after will be die-filling, is stood, seal aging obtains
To the plural gel of fiber and silica.
Specifically, in the present embodiment, dipping module 30 includes vacuum impregnation tank and explosion-proof type vacuum pump, and vacuum
Impregnating autoclave is connected with explosion-proof type vacuum pump and colloidal sol preparing tank respectively.
Wherein, vacuum impregnation tank be used to be packed into it is die-filling after fibrofelt, and after being vacuumized using explosion-proof type vacuum pump, benefit
With negative pressure of vacuum sucking silicon dioxide gel to liquid level do not had it is die-filling after fibrofelt highest point.
In the present embodiment, thermally conductive air-inlet grille setup module 40, for die-filling module 20 it is die-filling to fibrofelt it
It is preceding that thermally conductive air-inlet grille is arranged to fibrofelt.That is, in the present embodiment, thermally conductive air-inlet grille setup module 40 is first to fibrofelt
Thermally conductive air-inlet grille is set, then by die-filling module 20, the fibrofelt for being provided with thermally conductive air-inlet grille is die-filling.
Thermally conductive air-inlet grille is first set due to being, then by the fibrofelt for being provided with thermally conductive air-inlet grille it is die-filling after in dioxy
It is impregnated in SiClx colloidal sol, is blocked in order to avoid silicon dioxide gel enters thermally conductive air-inlet grille, in the present embodiment, led
Hot air-inlet grille is hollow tube open at one end, and open end is upwards (as shown in Figure 2).
Specifically, thermally conductive air-inlet grille can be evenly arranged (such as Fig. 3 along the length direction (i.e. breadth) of the fibrofelt of expansion
It is shown).More specifically, the length direction (i.e. breadth) of fibrofelt of multiple thermally conductive air-inlet grilles along expansion is successively spaced setting,
And not opening one end of thermally conductive air-inlet grille is aligned with the bottom margin of fibrofelt, one end of the opening of thermally conductive air-inlet grille to
Top edge that is upper and being exposed to fibrofelt.It should be noted that subsequent dipping is need to keep the opening upwards.Further,
The length of thermally conductive air-inlet grille exposed fiber felt is in 5cm~10cm (as shown in figs. 3 4).It will be provided with thermally conductive air-inlet grille again
Fibrofelt rewinding on dipping arbor so that thermally conductive air-inlet grille is radially distributed centered on dipping arbor in fibrofelt
(as shown in Figure 4) enables supercritical fluid be full of uniformly and simultaneously in fiber in this, as the overflow channel of supercritical fluid
The various pieces of felt, the heat exchange efficiency improved between plural gel and supercritical fluid reach raising so as to shorten drying time
Shorten the production cycle, improves the purpose of production efficiency.
It should be noted that above-mentioned thermally conductive air-inlet grille setup module 40 may be used also in other embodiments (not shown)
For obtaining that thermally conductive air-inlet grille is arranged to plural gel after plural gel in dipping module 30.
Due to being that thermally conductive air-inlet grille is arranged after obtaining plural gel, thermally conductive air-inlet grille can be both ends
The hollow tube being open, and the through-hole (as shown in Figure 5) of connection hollow region can be opened up on tube wall, in this, as shooting flow
The overflow channel of body can further improve the heat exchange efficiency between plural gel and supercritical fluid, to further shorten dry
The dry time.
Further, the diameter of thermally conductive air-inlet grille is 3mm~8mm.
Further, supercritical drying module 50, the plural gel for that will be equipped with thermally conductive air-inlet grille carry out overcritical
It is dry, obtain the silicon dioxide composite aerogel composite material equipped with thermally conductive air-inlet grille.
In the present embodiment, supercritical drying module 50 includes heating plant, cooling device and supercritical reaction apparatus.
Wherein, heating plant, for being heated to supercritical reaction apparatus, so that temperature and pressure in supercritical reaction apparatus
Power reaches more than the supercritical temperature of alcoholic solvent and pressure (such as Ethanol supercritical condition is 243 DEG C, 7.3MPa) in plural gel,
To realize the zero surface tension extraction of plural gel.
Cooling device, for carrying out pressure cooling heat transferring to supercritical reaction apparatus, to realize supercritical reaction apparatus
It is quickly cooled down.
In the present embodiment, supercritical reaction apparatus includes at least three groups of supercritical reaction kettle groups, and every group overcritical anti-
Answering kettle group includes at least three supercritical reaction kettles.
The design annual capacity of above-mentioned supercritical drying module 50 is greater than 8000m3, equipment gross investment, which is far below, reaches same production
Other techniques of energy scale.
With the increase of design annual capacity, utility model people has found in production practice, the supercritical drying of gel, size
Bigger, arid cycle is longer；Such as breadth 1.5m, the agglomerate body gel of coil diameter 0.3m will complete drying process, about need arid cycle
Want 24 hours；And breadth 1.5m, the gel of coil diameter 0.5m, drying process is completed, is greater than 48 hours arid cycle.Utility model
People has found that the reason of generating this process cycle greatest differences is by extensive work: due in supercritical drying process, heat
It is internally gradually to be transmitted from gel outer surface, with continuing for heat transfer process, gel internally can gradually become from outer surface
At aeroge, and aeroge is good heat-insulating material, heat can be prevented internally to transmit, therefore supercritical fluid is into gel
The process of portion's mass transfer heat exchange can be slack-off with the increase of coil diameter, and trend is slower and slower.By fibrofelt it is die-filling it
It is preceding that thermally conductive air-inlet grille is arranged to fibrofelt or thermally conductive air-inlet grille is arranged to plural gel after obtaining plural gel, it can
So that overflow channel of the thermally conductive air-inlet grille when plural gel carries out supercritical drying as supercritical fluid, compound to accelerate
Reach so as to shorten the supercritical drying time with the heat exchange efficiency of surrounding supercritical fluid inside gel and shorten the production cycle, mention
The purpose of high efficiency.
Further, thermally conductive air-inlet grille takes out module 60, for that will be equipped with the silica airsetting of thermally conductive air-inlet grille
Thermally conductive air-inlet grille in glue composite material takes out, to obtain silicon dioxide silica aerogel composite material.
Further, heat exchange module 70 are used for cooling water and high temperature alcohol steam heat-exchanging, after obtaining distilled water and cooling
Alcoholic solvent.
It is appreciated that high temperature alcohol steam is that supercritical drying module 50 is obtaining the silica equipped with thermally conductive air-inlet grille
It is generated during aerogel composite.
Further, heat exchange module 70 includes internal coil-tube type distilled water device and condenser, wherein internal coil-tube type distilled water
Device introduces its coil pipe for high temperature alcohol steam, exchanges heat with cooling water, obtains distilled water, if the alcohol steam after heat exchange is also
Waste heat is condensed by condenser.
Above-mentioned heat exchange module 70 can substantially reduce the cooling required amount of cooling water of alcohol steam, and the distilled water generated can pass through
Pipeline access distillation water storage tank directly uses.
Further, decoloration module 80, for alcoholic solvent after cooling to decolourize.
In the present embodiment, decoloration module 60 includes inorfil preliminary filter, bag filter and active carbon filter.
It is appreciated that supercritical fluid has very strong dissolubility, plural gel is through in supercritical drying process, high temperature alcohol
Steam can carry out a certain amount of fiber and nanometer silicon dioxide particle, can successively pass through inorfil preliminary filter and bag type filtering
Device removal, and high temperature alcohol steam can make fiberglass surfacing size become buff, influence the recycling and reusing of alcoholic solvent, adopt
Decolorization is carried out with active carbon processor, it is simple, easy；Active carbon can repeatedly activate recycling, good economy performance.After decoloration
Alcoholic solvent can be accessed in ethanol storage tank by pipeline and directly be used.
It is appreciated that heat exchange module 70 and decoloration module 80 can be omitted if not considering the recycling of ethyl alcohol.
Above-mentioned aerosil production system, by by batching modes 10, die-filling module 20, dipping module 30, lead
Hot air-inlet grille 40, supercritical drying module 50, thermally conductive air-inlet grille take out module 60, heat exchange module 70 and decoloration 80 section of module
Combination is learned, there is with short production cycle, high production efficiency, the advantages such as equipment investment is low, yield is high, unit production capacity takes up little area, it is great
Industrialization value.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of silicon dioxide silica aerogel composite material production system characterized by comprising
Batching modes are used to form silicon dioxide gel；
Die-filling module, for fibrofelt is die-filling；
Module is impregnated, is impregnated in the silicon dioxide gel for the fibrofelt after will be die-filling, is stood, seal aging obtains
The plural gel of fiber and silica；
Thermally conductive air-inlet grille setup module, for being set before the die-filling module is die-filling to the fibrofelt to the fibrofelt
Set thermally conductive air-inlet grille or the thermally conductive air-inlet grille setup module be used for the dipping module obtain the plural gel it
Thermally conductive air-inlet grille is arranged to the plural gel afterwards；
Supercritical drying module, the plural gel for that will be equipped with the thermally conductive air-inlet grille carry out supercritical drying, are set
There is the silicon dioxide silica aerogel composite material of the thermally conductive air-inlet grille；
Thermally conductive air-inlet grille takes out module, for that will be equipped in the silicon dioxide silica aerogel composite material of the thermally conductive air-inlet grille
Thermally conductive air-inlet grille take out, to obtain silicon dioxide silica aerogel composite material.
2. silicon dioxide silica aerogel composite material production system according to claim 1, which is characterized in that it is described it is thermally conductive into
Gas grid is hollow tube at least open at one end.
3. silicon dioxide silica aerogel composite material production system according to claim 2, which is characterized in that the hollow tube
Tube wall on be additionally provided with connection hollow region through-hole.
4. described in any item silicon dioxide silica aerogel composite material production systems according to claim 1~3, which is characterized in that
The production system further include:
Heat exchange module, the high temperature alcohol steam heat-exchanging for generating cooling water and the supercritical drying module, to be distilled
Water and alcoholic solvent after cooling.
5. silicon dioxide silica aerogel composite material production system according to claim 4, which is characterized in that the heat exchange mould
Block includes:
Internal coil-tube type distilled water device, for changing the cooling water and the high temperature alcohol steam in its coil pipe
Heat, to obtain the alcohol steam after distilled water and heat exchange；
Condenser obtains alcoholic solvent after cooling for cooling down the alcohol steam after the heat exchange.
6. silicon dioxide silica aerogel composite material production system according to claim 4, which is characterized in that the production system
System further include:
Decoloration module, for the alcoholic solvent after cooling to decolourize.
7. silicon dioxide silica aerogel composite material production system according to claim 6, which is characterized in that the decoloration mould
Block includes:
Inorfil preliminary filter, the fiber removal for will be carried in the alcoholic solvent after cooling；
Bag filter, the silica removal for will be carried in the alcoholic solvent after cooling；
Active carbon filter, for the alcoholic solvent after cooling to decolourize.
8. silicon dioxide silica aerogel composite material production system according to claim 6, which is characterized in that the decoloration mould
Block is connected with the batching modes, for the alcoholic solvent after decoloration to be passed through the batching modes to recycle.
9. silicon dioxide silica aerogel composite material production system according to claim 1, which is characterized in that described overcritical
Irradiation modules include heating plant and supercritical reaction apparatus；
The heating plant, for being heated to the supercritical reaction apparatus, so that the temperature in the supercritical reaction apparatus
Reach in the plural gel more than the supercritical temperature of alcoholic solvent and pressure with pressure.
10. silicon dioxide silica aerogel composite material production system according to claim 9, which is characterized in that described super to face
Boundary's irradiation modules further include cooling device, for cooling down to the supercritical reaction apparatus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821759001.4U CN209113767U (en) | 2018-10-29 | 2018-10-29 | Silicon dioxide silica aerogel composite material production system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821759001.4U CN209113767U (en) | 2018-10-29 | 2018-10-29 | Silicon dioxide silica aerogel composite material production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109020474A (en) * | 2018-10-29 | 2018-12-18 | 江群平 | Silicon dioxide silica aerogel composite material production system and production method |
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2018
- 2018-10-29 CN CN201821759001.4U patent/CN209113767U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109020474A (en) * | 2018-10-29 | 2018-12-18 | 江群平 | Silicon dioxide silica aerogel composite material production system and production method |
| CN109020474B (en) * | 2018-10-29 | 2021-02-12 | 江群平 | Production system and production method of silicon dioxide aerogel composite material |
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Effective date of registration: 20220110 Address after: 331100 No. 17, Huoju 4th Road, Fengcheng high tech Industrial Park, Yichun City, Jiangxi Province Patentee after: Jiangxi Haina Jingneng New Material Technology Co.,Ltd. Address before: 330000 unit 204, building 105, Greenland future city, high tech Zone, Nanchang City, Jiangxi Province Patentee before: Jiang Qunping |