CN210340348U - Silica sol production device - Google Patents
Silica sol production device Download PDFInfo
- Publication number
- CN210340348U CN210340348U CN201921026296.9U CN201921026296U CN210340348U CN 210340348 U CN210340348 U CN 210340348U CN 201921026296 U CN201921026296 U CN 201921026296U CN 210340348 U CN210340348 U CN 210340348U
- Authority
- CN
- China
- Prior art keywords
- silica sol
- head tank
- pipe
- silicic acid
- ion exchange
- 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.)
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- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 238000005342 ion exchange Methods 0.000 claims abstract description 25
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 55
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 28
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- 229910052911 sodium silicate Inorganic materials 0.000 description 5
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- 239000002245 particle Substances 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
- 239000003054 catalyst Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- -1 coatings Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- Silicon Compounds (AREA)
Abstract
The to-be-solved problem of the utility model is to provide a silica sol apparatus for producing who improves reation kettle production efficiency, reduces the energy consumption. And (3) after the active silicic acid solution obtained after the ion exchange column treatment is delivered to the head tank, starting the ultrafiltration concentration device, and concentrating and dehydrating the active silicic acid solution in the head tank. After a certain time of concentration treatment, the concentration of the active silicic acid solution in the head tank can be increased from 3-5% to 6-10%. Then adding the concentrated silicic acid into a reaction kettle to synthesize silica sol, so that the concentration of the silica sol generated in the reaction kettle is increased from 3% -5% to 6% -10%, the production efficiency of the reaction kettle is improved, and the energy consumption is reduced.
Description
Technical Field
The utility model relates to a silica sol production field, concretely relates to silica sol apparatus for producing.
Background
The silica sol is a dispersion of nano-silica with the grain diameter of 1-100 nanometers in water or other organic solvents, and is widely applied to the fields of precision casting, refractory materials, coatings, textiles, precision polishing and the like.
The domestic silica sol production technology mainly comprises an ion exchange method and a silica powder hydrolysis method.
The production process for preparing the silica sol by the ion exchange method mainly comprises three links: preparing active silicic acid, growing silica gel particles, purifying and concentrating the diluted silica sol. Firstly, diluted sodium silicate is used as a starting material, and the sodium silicate is treated by ion exchange resin to obtain an active silicic acid solution; slowly dripping an active silicic acid solution into the mother liquor containing the seed crystal, and slowly growing the silicon dioxide colloidal particles under the action of a catalyst until the particle size is required to grow; finally purifying and concentrating to obtain a silica sol product, wherein the commonly used devices are an ion exchange column and a reaction kettle.
The process for preparing the silica sol by the ion exchange method has the insurmountable defect that the concentration of the sodium silicate serving as a starting material cannot be too high (generally, the dilution concentration is about 5-8 percent), and if the concentration is too high, the exchange efficiency of the ion exchange resin is influenced; secondly, the resulting active silicic acid solution has a short shelf life. The concentration of the active silicic acid solution obtained by the ion exchange resin treatment is about 3% -5%, so that the concentration of the silica sol generated by slowly dripping the active silicic acid solution into the reaction kettle is about 3% -5%, and the low production efficiency and the increased energy consumption of the reaction kettle are caused due to the low concentration of the generated silica sol.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a silica sol apparatus for producing who improves reation kettle production efficiency, reduces the energy consumption.
The utility model discloses a realize through following technical scheme:
a silica sol production device comprises an ion exchange column, a reaction kettle, an elevated tank and an ultrafiltration concentrator; the liquid outlet pipe of the ion exchange column is communicated with the liquid inlet pipe of the head tank, the liquid outlet pipe of the head tank is communicated with the liquid inlet pipe of the ultrafiltration concentrator, and the liquid outlet pipe of the ultrafiltration concentrator is communicated with the liquid inlet pipe of the head tank;
and the liquid outlet pipe of the elevated tank is communicated with the liquid inlet of the reaction kettle.
Further, a first centrifugal pump is arranged between a liquid outlet pipe of the ion exchange column and a liquid inlet pipe of the head tank; and a second centrifugal pump is arranged between the liquid outlet pipe of the head tank and the liquid inlet pipe of the ultrafiltration concentrator.
Furthermore, the liquid outlet pipe of the ion exchange column is positioned at the lower end, the liquid inlet pipe of the elevated tank is the upper end, and the liquid outlet pipe of the elevated tank is positioned at the lower end.
Furthermore, a switch valve is arranged between the liquid outlet pipe of the ion exchange column and the liquid inlet pipe of the head tank, a switch valve is arranged between the liquid outlet pipe of the head tank and the liquid inlet pipe of the ultrafiltration concentrator, and a switch valve is arranged between the liquid outlet pipe of the head tank and the liquid inlet of the reaction kettle.
The specific process steps of the silica sol production device are as follows:
1. injecting a proper amount of 6% sodium silicate solution into an ion exchange column for treatment to obtain an active silicic acid solution;
2. and (3) after the active silicic acid solution is delivered to the head tank, starting the ultrafiltration concentration device, and concentrating and dehydrating the active silicic acid solution in the head tank. After a certain time of concentration treatment, the concentration of the active silicic acid solution in the head tank can be increased from 3-5% to 6-10%;
3. then adding the concentrated silicic acid into a reaction kettle to synthesize silica sol, thereby generating 6-10% of silica sol in the reaction kettle.
Compared with the prior art, the utility model the beneficial effect who gains as follows:
and (3) after the active silicic acid solution obtained after the ion exchange column treatment is delivered to the head tank, starting the ultrafiltration concentration device, and concentrating and dehydrating the active silicic acid solution in the head tank. After a certain time of concentration treatment, the concentration of the active silicic acid solution in the head tank can be increased from 3-5% to 6-10%. Then adding the concentrated silicic acid into a reaction kettle to synthesize silica sol, so that the concentration of the silica sol generated in the reaction kettle is increased from 3% -5% to 6% -10%, the production efficiency of the reaction kettle is improved, and the energy consumption is reduced.
Drawings
FIG. 1 is a schematic structural view of a silica sol production apparatus according to the present invention;
in the figure: 1. ion exchange column, 2, reaction kettle, 3, head tank, 4, ultrafiltration concentrator, 5, first centrifugal pump, 6, second centrifugal pump, 7, switch valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The silica sol production apparatus shown in fig. 1 mainly comprises an ion exchange column 1, a reaction kettle 2, an elevated tank 3 and an ultrafiltration concentrator 4.
The liquid outlet pipe of the ion exchange column 1 is positioned at the lower end, and the liquid inlet pipe of the elevated tank 3 is the upper end. The liquid outlet pipe of the ion exchange column 1 is communicated with the liquid inlet pipe of the elevated tank 3, and a first centrifugal pump 5 and a switch valve 7 are arranged between the liquid outlet pipe of the ion exchange column 1 and the liquid inlet pipe of the elevated tank 3, so that liquid in the ion exchange column can conveniently enter the elevated tank. The liquid outlet pipe of the elevated tank 3 is positioned at the lower end, the liquid outlet pipe of the elevated tank 3 is communicated with the liquid inlet pipe of the ultrafiltration concentrator 4, the liquid outlet pipe of the ultrafiltration concentrator 4 is communicated with the liquid inlet pipe of the elevated tank 3, and the liquid outlet pipe of the elevated tank 3 is communicated with the liquid inlet of the reaction kettle 2. A second centrifugal pump 6 is arranged between the liquid outlet pipe of the elevated tank 3 and the liquid inlet pipe of the ultrafiltration concentrator 4. A switch valve 7 is arranged between the liquid outlet pipe of the elevated tank 3 and the liquid inlet pipe of the ultrafiltration concentrator, and a switch valve 7 is arranged between the liquid outlet pipe of the elevated tank 3 and the liquid inlet of the reaction kettle 2. The liquid in the elevated tank is concentrated through the ultrafiltration concentrator by the second centrifugal pump, the filtered water is discharged and enters the elevated tank, and therefore the concentration of the liquid inside the elevated tank is improved and then enters the reaction kettle for reaction.
In the above, the ion exchange column 1 is a strong acid cation exchange column of Ø 1000 × 2000mm, the reaction vessel 2 is a jacket stirring reaction vessel with a volume of 12 cubic meters, the head tank 3 is a stainless steel or PE plastic storage tank with a volume of 25 cubic meters, and the ultrafiltration concentrator 4 is GCG-SI310-16 (16-branch membrane tube).
The concrete working process of silica sol production device is as follows:
the method comprises the following steps of enabling a sodium silicate solution with the volume of 20 cubic meters and 6% to pass through an ion exchange column to obtain a dilute silicic acid solution with the volume of 4% of 20 cubic meters, starting a first centrifugal pump to collect the solution in an elevated tank, starting an ultrafiltration concentrator and a second centrifugal pump, and concentrating water for a certain time to reduce the volume of the dilute silicic acid solution to 10 cubic meters, so that the concentration of the silicic acid solution is increased to 8%.
Adding the concentrated 2 cubic meters of silicic acid solution into a reaction kettle with the volume of 12 cubic meters, adding a proper amount of catalyst, heating to 90-100 ℃, starting feeding after 30 minutes, adding the rest 8 cubic meters of silicic acid solution into the reaction kettle according to a certain flow, and maintaining the temperature in the reaction kettle at 90-100 ℃ in the feeding process until the silicic acid solution is completely added into the reaction kettle. When the silicic acid solution is added completely, the reaction is continued for about 1 hour at 90-100 ℃. Then cooling to below 50 ℃, and discharging.
Through the production operation, a silica sol product with the volume of 10 cubic meters and the content of 8 percent can be finally obtained in the reaction kettle.
The operation method of firstly concentrating the dilute silicic acid solution and then feeding can obtain a silica sol product with the content of 8 percent, while the traditional production method can only obtain the silica sol with the concentration of 3-5 percent, so the operation method improves the production efficiency of the reaction kettle.
Claims (4)
1. A silica sol production device comprises an ion exchange column (1) and a reaction kettle (2), and is characterized by also comprising an elevated tank (3) and an ultrafiltration concentrator (4);
the liquid outlet pipe of the ion exchange column (1) is communicated with the liquid inlet pipe of the head tank (3), the liquid outlet pipe of the head tank (3) is communicated with the liquid inlet pipe of the ultrafiltration concentrator (4), and the liquid outlet pipe of the ultrafiltration concentrator (4) is communicated with the liquid inlet pipe of the head tank (3);
the liquid outlet pipe of the elevated tank (3) is communicated with the liquid inlet of the reaction kettle (2).
2. The silica sol production apparatus according to claim 1, wherein a first centrifugal pump (5) is provided between the liquid outlet pipe of the ion exchange column (1) and the liquid inlet pipe of the head tank (3); a second centrifugal pump (6) is arranged between the liquid outlet pipe of the elevated tank (3) and the liquid inlet pipe of the ultrafiltration concentrator (4).
3. Silica sol production plant according to claim 2, characterized in that the effluent pipe of the ion exchange column (1) is at the lower end, the feed pipe of the head tank (3) is at the upper end and the effluent pipe of the head tank (3) is at the lower end.
4. A silica sol production apparatus according to any one of claims 1 to 3, characterized in that a switch valve (7) is provided between the effluent pipe of the ion exchange column (1) and the feed pipe of the head tank (3), a switch valve (7) is provided between the effluent pipe of the head tank (3) and the feed pipe of the ultrafiltration concentrator, and a switch valve (7) is provided between the effluent pipe of the head tank (3) and the feed inlet of the reaction vessel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921026296.9U CN210340348U (en) | 2019-07-03 | 2019-07-03 | Silica sol production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921026296.9U CN210340348U (en) | 2019-07-03 | 2019-07-03 | Silica sol production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210340348U true CN210340348U (en) | 2020-04-17 |
Family
ID=70192668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921026296.9U Expired - Fee Related CN210340348U (en) | 2019-07-03 | 2019-07-03 | Silica sol production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210340348U (en) |
-
2019
- 2019-07-03 CN CN201921026296.9U patent/CN210340348U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A silica sol production device Effective date of registration: 20211216 Granted publication date: 20200417 Pledgee: Shandong Junan Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG PEAK-TECH NEW MATERIAL Co.,Ltd. Registration number: Y2021980015103 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230222 Granted publication date: 20200417 Pledgee: Shandong Junan Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG PEAK-TECH NEW MATERIAL Co.,Ltd. Registration number: Y2021980015103 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A silica sol production device Effective date of registration: 20230227 Granted publication date: 20200417 Pledgee: Shandong Junan Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG PEAK-TECH NEW MATERIAL Co.,Ltd. Registration number: Y2023980033575 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |