CN113432387A - Supercritical carbon dioxide drying device for aerogel glass - Google Patents
Supercritical carbon dioxide drying device for aerogel glass Download PDFInfo
- Publication number
- CN113432387A CN113432387A CN202110879737.5A CN202110879737A CN113432387A CN 113432387 A CN113432387 A CN 113432387A CN 202110879737 A CN202110879737 A CN 202110879737A CN 113432387 A CN113432387 A CN 113432387A
- Authority
- CN
- China
- Prior art keywords
- box body
- carbon dioxide
- supercritical carbon
- air holes
- aerogel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004964 aerogel Substances 0.000 title claims abstract description 40
- 239000011521 glass Substances 0.000 title claims abstract description 26
- 238000002210 supercritical carbon dioxide drying Methods 0.000 title claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000352 supercritical drying Methods 0.000 abstract description 9
- 238000005192 partition Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000011240 wet gel Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Cleaning Or Drying Semiconductors (AREA)
Abstract
The invention discloses a supercritical carbon dioxide drying device for aerogel glass, which comprises a box body, wherein the box body comprises a supporting frame and a ventilating plate arranged on the supporting frame, a plurality of air holes I are formed in the ventilating plate, the front side of the box body is connected with a box door through hinges, a lock catch is arranged on the other side of the box door and the box body, a protection plate is arranged on the outer side of the box body and the box door, a plurality of air holes II are formed in the protection plate, the aperture of the air holes I is larger than that of the air holes II, a plurality of L-shaped supporting plates are arranged on the left side and the right side in the box body, a partition plate is arranged on each L-shaped supporting plate, and a plurality of air holes III are formed in the partition plate. The invention has simple and rapid drying process, high working efficiency and convenient small-scale production; the protection plates are connected by magnetic strips, so that the protection plates are convenient to disassemble and clean, the impact of strong airflow of 10-16MPa on wet gel or aerogel is buffered, the injection time of supercritical drying medium is shortened, and the supercritical drying efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of aerogel glass preparation, and particularly relates to a supercritical carbon dioxide drying device for aerogel glass.
Background
Drying device is a common equipment of chemical industry, and traditional drying device has three types: a heat drying device, a vacuum drying device, and a freeze drying device. But traditional drying device is used for dry aerogel, and there is that aerogel volume shrink is big, the nano-pore structure has very big degree destruction, leads to aerogel pulverization, split, difficult blocking, has destroyed self good physics, chemical properties. In addition, the existing supercritical drying device dissolves the solvent in the alcogel in a supercritical state through a dissolving medium, and replaces the solvent out, wherein the dissolving medium comprises ethanol, carbon dioxide and the like, so that the internal stress in the alcogel is reduced, and the skeleton structure of the aerogel is ensured not to be damaged.
Chinese patent CN203408695U provides an aerogel material supercritical drying device, the outside of the kettle body is injected with circulating oil and installed with resistance wires, the top of the kettle body is installed with a kettle cover and opened with an air inlet and an air outlet connected with the inside, and the air outlet is connected with a condensing device. However, in the drying process of the aerogel, the pressure is high in the supercritical state, so that the aerogel is broken and partially pulverized, and the air release port is blocked in the pressure release process.
Chinese patent CN203737204U provides a supercritical drying device for preparing nano-oxide, a pressure controller and a temperature controller are arranged on a high-pressure reactor, a sealing cover is arranged at the upper end of the high-pressure reactor, a high-temperature vent is arranged in the sealing cover, and a filter screen is arranged at the inlet of the high-temperature vent at the inner side of the sealing cover. The filter screen is used for preventing a small amount of fluffy substances from blocking the air release port when high-pressure air release is carried out. However, the existing supercritical drying device has overlarge carbon dioxide airflow impact, so that not only is the material impact damaged and is not beneficial to drying of sheets such as aerogel glass, but also the air outlet cannot be cleaned in time, and aerogel powder is easy to accumulate and block.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a supercritical carbon dioxide drying apparatus for aerogel glass.
A supercritical carbon dioxide drying device for aerogel glass comprises a box body, wherein the box body comprises a supporting frame and a ventilating plate arranged on the supporting frame, the structure stability is ensured for convenient manufacture, the supporting frame is formed by welding square pipes, a plurality of air holes I are formed in the ventilating plate, the front side of the box body is connected with a box door through hinges, a lock catch is arranged on the other side of the box door and the box body, a protection plate is arranged on the outer side of the box body and the box door, a plurality of air holes II are formed in the protection plate, for convenient connection, the protection plate comprises a filter screen, magnetic stripes are arranged around the filter screen, the width of the magnetic stripes is 10-30mm, six protection plates are connected to the outer side of the box body through magnetic connection, the aperture of the air holes I is larger than that of the air holes II, a plurality of L-shaped supporting plates are arranged on the left side and the right side of the box body, a partition plate is arranged on the L-shaped supporting plates, the partition board is provided with a plurality of air holes III, the partition board can be drawn out from the front side of the box body, the width of the L-shaped support board is 20-30mm, and the height of the L-shaped support board is 15-30 mm.
In order to facilitate the drying of the aerogel glass, the L-shaped supporting plates are inclined from front to back and from bottom, the included angle between each L-shaped supporting plate and the horizontal plane is 5-45 degrees, and the interval between the upper L-shaped supporting plate and the lower L-shaped supporting plate is 85-105 mm.
In order to effectively prevent aerogel powder from entering a pipeline of the drying equipment to cause the blockage of the pipeline, the aperture of the air holes I and the aperture of the air holes III are 1-2mm, and the aperture of the air holes II is 0.3-1 mm.
In order to support the box body and increase the contact area of gas, a support column is arranged at the bottom of the box body. Meanwhile, in order to prevent the box body from sliding, the bottom of the supporting column is provided with an anti-slip pad.
Compared with the prior art, the supercritical carbon dioxide drying device for aerogel glass has the beneficial effects that: 1. the invention has simple and rapid drying process, high working efficiency and convenient small-scale production; 2. the protection plates are connected by magnetic stripes, so that the protection plates are convenient to disassemble and clean, the impact of strong airflow of 10-16MPa on wet gel or aerogel is buffered, the injection time of supercritical drying medium is shortened, and the supercritical drying efficiency is improved; 3. the partition plates are obliquely arranged, so that gas slowly enters the aerogel glass preform in the vertical direction, the gas flow velocity is slow and uniform, the gas flow uniformly flows in a supercritical state, and when the gas is released, the gas is slowly discharged along the oblique direction, so that the blocking property of the aerogel is facilitated, the internal stress caused by the gas entering and releasing is reduced, and the phenomena of warping, cracking and the like are inhibited.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a view showing an external configuration of a supercritical carbon dioxide drying apparatus for aerogel glass according to the present invention;
FIG. 2 is a schematic view showing the internal structure of the supercritical carbon dioxide drying apparatus for aerogel glass according to the present invention;
fig. 3 is a schematic structural view of the separator of the present invention.
As shown in the figure, the box comprises a box body 1, a support frame 2, a vent plate 3, a vent hole I4, a protective plate 5, a magnetic strip 6, a box door 7, a lock catch 8, a vent hole II 9, a filter screen 10, a support column 11, an L-shaped support plate 12, a partition plate 13, a vent hole III 14 and a hinge 15.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. Meanwhile, the terms such as "front", "rear", "left" and "right" used in the present specification are for convenience of description and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered to be within the scope of the present invention without substantial changes in the technical content.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, a supercritical carbon dioxide drying device for aerogel glass comprises a box body 1, wherein the box body 1 comprises a supporting frame 2 and a ventilating plate 3 arranged on the supporting frame 2, for the convenience of manufacture and the guarantee of structural stability, the supporting frame 2 is formed by welding square pipes, a plurality of air holes I4 are arranged on the ventilating plate 3, the front side of the box body 1 is connected with a box door 7 through hinges 15, a lock catch 8 is arranged on the other side of the box door 7 and the box body 1, a protection plate 5 is arranged on the outer side of the box body 1 and the box door 7, a plurality of air holes II 9 are arranged on the protection plate 5, for the convenience of connection, the protection plate 5 comprises a filter screen 10, magnetic stripes 6 are arranged around the filter screen 10, the width of the magnetic stripes 6 is 15mm, six protection plates 5 are connected to the outer side of the box, the left and right sides is equipped with a plurality of L type backup pads 12 in the box 1, be equipped with baffle 13 on the L type backup pad 12, be equipped with three 14 of a plurality of bleeder vents on the baffle 13, baffle 13 can be taken out by box 1 front side, and the width of L type backup pad 12 is 20mm, and the height is 15 mm.
In order to facilitate the drying of the aerogel glass, the L-shaped support plates 12 are inclined from front to back and downwards, the included angle between each L-shaped support plate 12 and the horizontal plane is 15 degrees, and the interval between the upper L-shaped support plate 12 and the lower L-shaped support plate 12 is 85 mm.
For effectively preventing the aerogel powder from entering the pipeline of drying equipment, causing the jam of pipeline, the aperture of bleeder vent one 4 and bleeder vent three 14 is 1mm, the aperture of bleeder vent two 9 is 0.6 mm.
In order to support the box body 1 and increase the contact area of the gas, a support column 11 is arranged at the bottom of the box body 1. Meanwhile, in order to prevent the box body 1 from sliding, the bottom of the support column 11 is provided with an anti-slip pad.
The invention is realized by the following modes: during the use, place the dry aerogel glass of needs on baffle 13, then place baffle 13 in L type backup pad, close chamber door 7, close hasp 8, the air current passes through the guard plate and reenters box 1, impact force when having effectively weakened the air current and having got into for the air current evenly gets into in the aerogel glass preform slowly with inclining, thereby makes the supercritical drying of aerogel glass more even, reduces the internal stress among the skeleton texture, obtains massive aerogel.
The scope of the present invention is not limited to the technical solutions disclosed in the embodiments, and any modifications, equivalent substitutions, improvements, etc. made to the above embodiments according to the technical spirit of the present invention fall within the scope of the present invention.
Claims (8)
1. The supercritical carbon dioxide drying device for the aerogel glass is characterized by comprising a box body, wherein the box body comprises a supporting frame and a ventilating plate arranged on the supporting frame, a plurality of air holes I are formed in the ventilating plate, a box door is connected to the front side of the box body through hinges, a lock catch is arranged on the other side of the box door and the box body, a protection plate is arranged on the outer side of the box body and the box door, a plurality of air holes II are formed in the protection plate, the aperture of the air holes I is larger than that of the air holes II, a plurality of L-shaped supporting plates are arranged on the left side and the right side in the box body, a.
2. The apparatus for drying aerogel glass using supercritical carbon dioxide as claimed in claim 1, wherein said support frame is made of square tubes by welding.
3. The supercritical carbon dioxide drying apparatus for aerogel glass according to claim 1 or 2, wherein the protection plate comprises a filter screen, and magnetic strips are arranged around the filter screen.
4. The supercritical carbon dioxide drying apparatus for aerogel glass as claimed in claim 3, wherein said L-shaped support plates are inclined from front to back and from bottom to top, the angle between said L-shaped support plates and the horizontal plane is 5-45 °, and the interval between the upper and lower L-shaped support plates is 85-105 mm.
5. The supercritical carbon dioxide drying apparatus for aerogel glass according to claim 4, wherein the pore size of the first air hole and the third air hole is 1 to 2mm, and the pore size of the second air hole is 0.3 to 1 mm.
6. The supercritical carbon dioxide drying apparatus for aerogel glass as claimed in claim 5, wherein a support column is provided at the bottom of the box.
7. The supercritical carbon dioxide drying apparatus for aerogel glass as in claim 6, wherein a non-slip mat is disposed on the bottom of said support column.
8. The supercritical carbon dioxide drying apparatus for aerogel glass as described in claim 7, wherein said L-shaped support plate has a width of 20 to 30mm and a height of 15 to 30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110879737.5A CN113432387B (en) | 2021-08-02 | 2021-08-02 | Supercritical carbon dioxide drying device for aerogel glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110879737.5A CN113432387B (en) | 2021-08-02 | 2021-08-02 | Supercritical carbon dioxide drying device for aerogel glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113432387A true CN113432387A (en) | 2021-09-24 |
| CN113432387B CN113432387B (en) | 2024-04-30 |
Family
ID=77762470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110879737.5A Active CN113432387B (en) | 2021-08-02 | 2021-08-02 | Supercritical carbon dioxide drying device for aerogel glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113432387B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004363404A (en) * | 2003-06-05 | 2004-12-24 | Nippon Telegr & Teleph Corp <Ntt> | Method for supercritical drying |
| JP2006282484A (en) * | 2005-04-04 | 2006-10-19 | Honda Motor Co Ltd | System for drying carbon material, method for drying carbon material, carbon material and electric double layer capacitor |
| CN101275806A (en) * | 2007-03-28 | 2008-10-01 | 中国科学院微电子研究所 | Carbon dioxide supercritical drying device |
| CN103469320A (en) * | 2013-09-29 | 2013-12-25 | 无锡众望四维科技有限公司 | Fiber wind cooler |
| CN105641970A (en) * | 2016-03-09 | 2016-06-08 | 内蒙古三主粮天然燕麦产业股份有限公司 | Extraction kettle |
| CN210057634U (en) * | 2019-04-24 | 2020-02-14 | 河南亿鑫工程科技有限公司 | Central air conditioning maintenance device |
| CN211153668U (en) * | 2019-12-13 | 2020-08-04 | 胡勇刚 | Supercritical nano drying device for cubilose |
| CN215490695U (en) * | 2021-08-02 | 2022-01-11 | 贵州航天乌江机电设备有限责任公司 | Supercritical carbon dioxide drying device for aerogel glass |
-
2021
- 2021-08-02 CN CN202110879737.5A patent/CN113432387B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004363404A (en) * | 2003-06-05 | 2004-12-24 | Nippon Telegr & Teleph Corp <Ntt> | Method for supercritical drying |
| JP2006282484A (en) * | 2005-04-04 | 2006-10-19 | Honda Motor Co Ltd | System for drying carbon material, method for drying carbon material, carbon material and electric double layer capacitor |
| CN101275806A (en) * | 2007-03-28 | 2008-10-01 | 中国科学院微电子研究所 | Carbon dioxide supercritical drying device |
| CN103469320A (en) * | 2013-09-29 | 2013-12-25 | 无锡众望四维科技有限公司 | Fiber wind cooler |
| CN105641970A (en) * | 2016-03-09 | 2016-06-08 | 内蒙古三主粮天然燕麦产业股份有限公司 | Extraction kettle |
| CN210057634U (en) * | 2019-04-24 | 2020-02-14 | 河南亿鑫工程科技有限公司 | Central air conditioning maintenance device |
| CN211153668U (en) * | 2019-12-13 | 2020-08-04 | 胡勇刚 | Supercritical nano drying device for cubilose |
| CN215490695U (en) * | 2021-08-02 | 2022-01-11 | 贵州航天乌江机电设备有限责任公司 | Supercritical carbon dioxide drying device for aerogel glass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113432387B (en) | 2024-04-30 |
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