CN210528490U - Preparation facilities of nanometer silica aerogel - Google Patents
Preparation facilities of nanometer silica aerogel Download PDFInfo
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- CN210528490U CN210528490U CN201921754679.8U CN201921754679U CN210528490U CN 210528490 U CN210528490 U CN 210528490U CN 201921754679 U CN201921754679 U CN 201921754679U CN 210528490 U CN210528490 U CN 210528490U
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Abstract
The utility model discloses a preparation device of nano-silica aerogel, which comprises a bottom plate, a stirring unit, a proportioning unit, a monitoring unit and a heating unit, wherein the middle part of the upper surface of the bottom plate is fixedly connected with a reaction cylinder, a cavity is arranged inside the side wall of the reaction cylinder, the upper surface of the bottom plate is provided with four symmetrically distributed pillars, the upper surfaces of the pillars are fixedly connected with the lower surface of an annular bedplate, the upper surface of the bottom plate is fixedly connected with an electric push rod, the electric push rod is positioned at the outer side of the reaction cylinder, the upper surface of the electric push rod is provided with a connecting plate, the stirring unit is arranged at the lower surface of the connecting plate, the proportioning unit is arranged at the upper end of the annular bedplate, the monitoring unit is arranged inside the reaction cylinder, the heating unit is arranged inside the cavity, the preparation device of the nano-silica aerogel has, reduces the labor intensity of workers and is convenient to use.
Description
Technical Field
The utility model relates to an aerogel preparation technical field specifically is a preparation facilities of nanometer silica aerogel.
Background
The nano-silica aerogel is a novel light porous material, has low density, high porosity, low thermal conductivity, high light transmittance, low refractive index and low sound propagation speed, and is a novel high-efficiency light-transmitting, heat-insulating and sound-insulating material. This product has high luminousness and low heat conductivity, be particularly suitable for being used for solar photothermal low temperature flat water heater, medium temperature flat plate collector, building glass window etc. both require printing opacity and require high-efficient heat retaining application place, current nanometer silica aerogel device function singleness, mostly the artifical raw and other materials that add prepare, because the required raw materials of nanometer silica aerogel preparation are more and need dispose according to certain proportion, people's intensity of labour has seriously been increased, the ratio precision is not high, influence product quality, and need the mobile device in the preparation process, the process is loaded down with trivial details, for this reason, we have provided a preparation facilities of nanometer silica aerogel and have solved above-mentioned defect.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a preparation facilities of nanometer silica aerogel, novel structure, the function is various, and degree of automation is high, can accomplish in proper order and make the process, has reduced artificial intensity of labour, and convenient to use can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a preparation device of nano silicon dioxide aerogel comprises a bottom plate, a stirring unit, a proportioning unit, a monitoring unit and a heating unit;
a bottom plate: the middle part of the upper surface of the bottom plate is fixedly connected with a reaction cylinder, a cavity is arranged inside the side wall of the reaction cylinder, four symmetrically distributed support columns are arranged on the upper surface of the bottom plate, the upper surfaces of the support columns are fixedly connected with the lower surface of the annular platen, an electric push rod is fixedly connected with the upper surface of the bottom plate and is positioned outside the reaction cylinder, and a connecting plate is arranged on the upper surface of the electric push rod;
a stirring unit: the stirring unit is arranged on the lower surface of the connecting plate;
proportioning unit: the proportioning unit is arranged at the upper end of the annular bedplate;
a monitoring unit: the monitoring unit is arranged inside the reaction cylinder;
a heating unit: the heating unit is arranged in the cavity;
wherein: the silicon aerogel production device is characterized by further comprising a PLC (programmable logic controller), the PLC is fixedly connected to the upper surface of the annular platen, the input end of the PLC is electrically connected with an external power supply, the output end of the PLC is electrically connected with the input end of the electric push rod, tetraethoxysilane is used as a precursor for preparing silicon aerogel, tetraethoxysilane, acetone, absolute ethyl alcohol, water, dilute hydrochloric acid, dilute ammonia water, trimethylsilane and n-hexane are respectively stored in eight liquid storage tanks, the digital display flow control valves corresponding to the liquid storage tanks in which the tetraethoxysilane, the acetone, the absolute ethyl alcohol and the water are located are respectively opened through the PLC to enable the tetraethoxysilane, the acetone, the absolute ethyl alcohol and the water to be mixed in a certain proportion, a motor is started through the PLC, a stirring blade is driven to rotate through a rotating shaft, mixed solution is stirred, the digital display flow control valves corresponding to the liquid storage tanks in which the dilute hydrochloric, after the PH reaches the required standard, the PLC closes a digital display flow control valve corresponding to a liquid storage tank where dilute hydrochloric acid is located to enable the solution to react, then opens the digital display flow control valve corresponding to the liquid storage tank where dilute ammonia water is located to add dilute ammonia water to adjust the PH to be neutral, then opens an electric push rod through the PLC, the electric push rod drives a connecting plate to ascend, the connecting plate drives stirring blades, a rotating shaft and a motor to ascend to the upper part of a reaction cylinder, the PLC opens a heating wire and detects the heating temperature in real time through a temperature sensor, the heating wire is electrified to generate heat to heat a mixed solution to enable the solution to stand and age to become gel, after the aging is completed, the PLC respectively opens digital display flow control valves corresponding to liquid storage tanks where trimethylsilane and n-hexane are located, trimethylsilane and n-hexane are added to perform surface, this nanometer silica aerogel's preparation facilities novel structure, the function is various, and degree of automation is high, can accomplish in proper order and prepare the process more, has reduced artificial intensity of labour, convenient to use.
Further, the stirring unit includes stirring vane, pivot and motor, the lower surface of motor and the upper surface left end fixed connection of connecting plate, the output shaft of motor passes the through-hole of connecting plate left end, the output shaft of motor and the upper end fixed connection of pivot, the pivot is located the inside of reaction cylinder, stirring vane is helical structure, stirring vane's intrados and the extrados fixed connection of pivot, stirring vane's middle part is provided with evenly distributed's through-hole, the output of PLC controller is connected to the input electricity of motor, and mixing rate accelerates, improvement reaction rate.
Further, the ratio unit includes liquid storage pot, conveyer pipe, digital display flow control valve, the liquid storage pot has eight and the angle such as sets up in the upper surface of annular platen, the inlet of conveyer pipe and the liquid outlet fixed connection of liquid storage pot, the conveyer pipe passes the lateral wall of retort and extends to the bottom of retort, digital display flow control valve establishes ties in the upper end of conveyer pipe, digital display flow control valve is connected with the two-way electricity of PLC controller, carries out automatic ratio to the raw materials of preparation silica aerogel and mixes.
Further, the monitoring unit includes PH measuring apparatu and temperature sensor, PH measuring apparatu and temperature sensor all with the inside fixed connection of lateral wall of reaction cylinder, the input of PLC controller is all connected to PH measuring apparatu and temperature sensor's output electricity, monitors PH and temperature in the preparation process, is convenient for adjust.
Further, the heating unit includes heating wire and heated board, the heating wire is the heliciform and sets up in the inside of cavity, heated board fixed connection is in the bottom of cavity, the heated board is located the outside of heating wire, the output of PLC controller is connected to the input electricity of heating wire, heats the reaction tube, is convenient for accelerate reaction and drying.
Compared with the prior art, the beneficial effects of the utility model are that: this nanometer silica aerogel's preparation facilities has following benefit:
1. the method comprises the steps of adopting ethyl orthosilicate as a precursor for preparing silicon aerogel, respectively storing ethyl orthosilicate, acetone, absolute ethyl alcohol, water, dilute hydrochloric acid, dilute ammonia water, trimethylsilane and normal hexane in eight liquid storage tanks, respectively opening digital display flow control valves corresponding to the liquid storage tanks in which the ethyl silicate, the acetone, the absolute ethyl alcohol and the water are located through a PLC (programmable logic controller) to mix the ethyl silicate, the acetone, the absolute ethyl alcohol and the water in a certain proportion, opening a motor through the PLC, driving stirring blades to rotate through a rotating shaft by the motor, stirring the mixed solution, opening the digital display flow control valves corresponding to the liquid storage tanks in which the dilute hydrochloric acid is located through the PLC after uniform stirring, adding the dilute hydrochloric acid, detecting the PH of the solution through a PH measuring instrument, closing the digital display flow control valves corresponding to the liquid storage tanks in which the dilute hydrochloric acid is located through the PLC after the PH reaches a required standard to enable the solution to react, then opening, then open electric putter through the PLC controller, electric putter drives the connecting plate and rises, the connecting plate drives stirring vane, pivot and motor rise to the reaction cylinder top, the PLC controller is opened the heating wire and is passed through temperature sensor real-time detection heating temperature, the heating wire circular telegram is generated heat and is heated mixed liquid and make solution stand ageing and become the gel, open the digital display flow control valve that trimethylsilane and n-hexane place liquid storage pot correspond respectively through the PLC controller after ageing the completion, add trimethylsilane and n-hexane and carry out surface hydrophobic treatment, dry through heating wire circular telegram electric heating at last and make nanometer silica aerogel, this nanometer silica aerogel's preparation facilities novel structure, the function is various, degree of automation is high, can accomplish in proper order and prepare the process, artificial intensity of labour has been reduced, high durability and convenient use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a base plate 1, a reaction cylinder 2, a support 3, a ring-shaped bedplate 4, a PLC 5, a stirring unit 6, a stirring blade 61, a rotating shaft 62, a motor 63, a proportioning unit 7, a liquid storage tank 71, a conveying pipe 72, a digital display flow control valve 73, a monitoring unit 8, a PH 81 measuring instrument, a temperature sensor 82, a heating unit 9, a heating wire 91, a heat insulation plate 92, an electric push rod 10, a connecting plate 11 and a cavity 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a preparation device of nano silicon dioxide aerogel comprises a bottom plate 1, a stirring unit 6, a proportioning unit 7, a monitoring unit 8 and a heating unit 9;
bottom plate 1: the upper surface middle part fixed connection of bottom plate 1 has a reaction cylinder 2, and the inside cavity 12 that is provided with of lateral wall of reaction cylinder 2, the upper surface of bottom plate 1 are equipped with four symmetric distribution's pillar 3, and the upper surface of pillar 3 all is connected with the lower fixed surface of annular platen 4, and the upper surface fixed connection of bottom plate 1 has electric putter 10, and electric putter 10 is located the outside of reaction cylinder 2, and electric putter 10's upper surface is provided with connecting plate 11.
The stirring unit 6: stirring unit 6 includes stirring vane 61, pivot 62 and motor 63, the lower surface of motor 63 and the upper surface left end fixed connection of connecting plate 11, the output shaft of motor 63 passes the through-hole of the 11 left ends of connecting plate, the output shaft of motor 63 and the upper end fixed connection of pivot 62, pivot 62 is located the inside of reaction cylinder 2, stirring vane 61 is helical structure, stirring vane 61's intrados and the extrados fixed connection of pivot 62, stirring vane 61's middle part is provided with evenly distributed's through-hole, motor 63 drives stirring vane 61 through pivot 62 and rotates, stir mixed solution, mixing speed with higher speed, and the reaction rate is improved.
Proportioning unit 7: the proportioning unit 7 comprises a liquid storage tank 71, a delivery pipe 72 and a digital display flow control valve 73, wherein the liquid storage tank 71 is provided with eight liquid storage tanks 71 which are arranged on the upper surface of the annular bedplate 4 at equal angles, the eight liquid storage tanks 71 are respectively used for storing tetraethoxysilane, acetone, absolute ethyl alcohol, water, dilute hydrochloric acid, dilute ammonia water, trimethylsilane and n-hexane, the tetraethoxysilane, the acetone, the absolute ethyl alcohol and the water are used as raw materials for preparing nano silica aerogel, the dilute hydrochloric acid and the dilute ammonia water are used for adjusting the PH value in the preparation process, the trimethylsilane and the n-hexane are respectively used as a component and a solvent for surface hydrophobic treatment, a liquid inlet of the delivery pipe 72 is fixedly connected with a liquid outlet of the liquid storage tank 71, the delivery pipe 72 penetrates through the side wall of the reaction cylinder 2 and extends to the bottom end of the reaction cylinder 2, the digital, the sensing signal transmitter in the digital display flow control valve 73 and the impeller in the flow machine core sense and detect the liquid flow, and transmit signals to the PLC controller 5, when the PLC controller 5 detects that the flow reaches a set value, the automatic valve core in the flow control valve 73 is closed, and the raw materials for preparing the silicon dioxide aerogel are automatically proportioned and mixed.
The monitoring unit 8: the monitoring unit 8 comprises a PH measuring instrument 81 and a temperature sensor 82, the PH measuring instrument 81 and the temperature sensor 82 are fixedly connected with the inner part of the side wall of the reaction cylinder 2, and the PH and the temperature in the preparation process are monitored and are convenient to adjust.
The heating unit 9: heating unit 9 includes heating wire 91 and heated board 92, and heating wire 91 is the heliciform and sets up in the inside of cavity 12, and heated board 92 fixed connection is in the bottom of cavity 12, and heated board 92 is located heating wire 91's the outside, heats reaction cylinder 2, is convenient for accelerate reaction and drying, and heated board 92 is used for keeping warm thermal-insulated to inside.
Wherein: still include PLC controller 5, PLC controller 5 fixed connection is in the upper surface of annular platen 4, and external power source is connected to PLC controller 5's input electricity, and PLC controller 5's output is electric connection motor 63, heating wire 91 and electric putter 10's input respectively, and PLC controller 5's input is all connected to PH measuring apparatu 81 and temperature sensor 82's output.
When in use: tetraethoxysilane is adopted as a precursor for preparing the silicon aerogel, tetraethoxysilane, acetone, absolute ethyl alcohol, water, dilute hydrochloric acid, dilute ammonia water, trimethylsilane and normal hexane are respectively stored in eight liquid storage tanks 71, a digital display flow control valve 73 corresponding to the liquid storage tank 71 in which the tetraethoxysilane, the acetone, the absolute ethyl alcohol and the water are positioned is respectively opened through a PLC (programmable logic controller) 5, a sensing transmitter in the digital display flow control valve 73 and an impeller in a flow core sense and detect the liquid flow, signals are transmitted to the PLC 5, an automatic valve core in the flow control valve 73 is closed when the PLC 5 detects that the flow reaches a set value, the automatic valve core is mixed according to a certain proportion, a motor 63 is opened through the PLC 5, the motor 63 drives a stirring blade 61 to rotate through a rotating shaft 62 to stir the mixed solution, the PLC 5 opens the digital display flow control valve 73 corresponding to the liquid storage tank 71 in which the dilute hydrochloric acid is positioned to add the dilute hydrochloric acid after uniform, the PH of the solution is detected by a PH measuring instrument 81, after the PH reaches a required standard, a PLC (programmable logic controller) 5 closes a digital display flow control valve 73 corresponding to a liquid storage tank 71 in which dilute hydrochloric acid is located to enable the solution to react, then opens the digital display flow control valve 73 corresponding to the liquid storage tank 71 in which dilute ammonia water is located to add dilute ammonia water to adjust the PH to be neutral, then opens an electric push rod 10 by the PLC 5, the electric push rod 10 drives a connecting plate 11 to ascend, the connecting plate 11 drives a stirring blade 61, a rotating shaft 62 and a motor 63 to ascend to the upper part of a reaction cylinder 2, the PLC 5 opens an electric heating wire 91 and detects the heating temperature in real time by a temperature sensor 82, the electric heating wire 91 is electrified to heat the mixed solution to enable the solution to stand and age to be gel, after the aging is completed, the PLC 5 respectively opens the digital display flow control valves 73 corresponding to, finally, the nano silicon dioxide aerogel is prepared by electrifying, heating and drying the electric heating wire 91.
It should be noted that the specific model of the PLC controller 5 disclosed in this embodiment is siemens S7-200, the motor 63, the digital display flow control valve 73, the heating wire 91, the electric putter 10, the PH measuring instrument 81, and the temperature sensor 82 may be freely configured according to the actual application scenario, the motor 63 is proposed to use a vertical high-speed-ratio gear reduction motor manufactured by shanghai zhibao motor limited, the electric putter 10 may use a parallel ball screw type electric putter manufactured by yao electric hydraulic putter factory, and the PLC controller 5 controls the motor 63, the digital display flow control valve 73, the heating wire 91, the electric putter 10, the PH measuring instrument 81, and the temperature sensor 82 to work by using a method commonly used in the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A preparation facilities of nanometer silica aerogel which characterized in that: comprises a bottom plate (1), a stirring unit (6), a proportioning unit (7), a monitoring unit (8) and a heating unit (9);
base plate (1): the middle part of the upper surface of the bottom plate (1) is fixedly connected with a reaction cylinder (2), a cavity (12) is arranged inside the side wall of the reaction cylinder (2), four symmetrically distributed support columns (3) are arranged on the upper surface of the bottom plate (1), the upper surfaces of the support columns (3) are fixedly connected with the lower surface of the annular bedplate (4), an electric push rod (10) is fixedly connected with the upper surface of the bottom plate (1), the electric push rod (10) is positioned on the outer side of the reaction cylinder (2), and a connecting plate (11) is arranged on the upper surface of the electric push rod (10);
stirring unit (6): the stirring unit (6) is arranged on the lower surface of the connecting plate (11);
proportioning unit (7): the proportioning unit (7) is arranged at the upper end of the annular bedplate (4);
monitoring unit (8): the monitoring unit (8) is arranged inside the reaction cylinder (2);
heating unit (9): the heating unit (9) is arranged inside the cavity (12);
wherein: the novel electric push rod mechanism is characterized by further comprising a PLC (5), wherein the PLC (5) is fixedly connected to the upper surface of the annular bedplate (4), an external power supply is electrically connected to the input end of the PLC (5), and the input end of the electric push rod (10) is electrically connected to the output end of the PLC (5).
2. The apparatus for preparing nano silica aerogel according to claim 1, wherein: stirring unit (6) are including stirring vane (61), pivot (62) and motor (63), the lower surface of motor (63) and the upper surface left end fixed connection of connecting plate (11), the output shaft of motor (63) passes the through-hole of connecting plate (11) left end, the output shaft of motor (63) and the upper end fixed connection of pivot (62), pivot (62) are located the inside of reaction cylinder (2), stirring vane (61) are helical structure, the extrados fixed connection of the intrados of stirring vane (61) and pivot (62), the middle part of stirring vane (61) is provided with evenly distributed's through-hole, the output of PLC controller (5) is connected to the input electricity of motor (63).
3. The apparatus for preparing nano silica aerogel according to claim 1, wherein: proportioning unit (7) include liquid storage pot (71), conveyer pipe (72), digital display flow control valve (73), liquid storage pot (71) have eight and set up in the upper surface of annular platen (4) with the angle, the inlet of conveyer pipe (72) and the liquid outlet fixed connection of liquid storage pot (71), conveyer pipe (72) pass the lateral wall of reaction cylinder (2) and extend to the bottom of reaction cylinder (2), digital display flow control valve (73) are established ties in the upper end of conveyer pipe (72), digital display flow control valve (73) and PLC controller (5) two-way electricity are connected.
4. The apparatus for preparing nano silica aerogel according to claim 1, wherein: the monitoring unit (8) comprises a PH measuring instrument (81) and a temperature sensor (82), the PH measuring instrument (81) and the temperature sensor (82) are fixedly connected with the inner part of the side wall of the reaction cylinder (2), and the output ends of the PH measuring instrument (81) and the temperature sensor (82) are electrically connected with the input end of the PLC (5).
5. The apparatus for preparing nano silica aerogel according to claim 1, wherein: heating unit (9) include heating wire (91) and heated board (92), heating wire (91) are the heliciform and set up in the inside of cavity (12), heated board (92) fixed connection is in the bottom of cavity (12), heated board (92) are located the outside of heating wire (91), the output of PLC controller (5) is connected to the input electricity of heating wire (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921754679.8U CN210528490U (en) | 2019-10-18 | 2019-10-18 | Preparation facilities of nanometer silica aerogel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921754679.8U CN210528490U (en) | 2019-10-18 | 2019-10-18 | Preparation facilities of nanometer silica aerogel |
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| CN210528490U true CN210528490U (en) | 2020-05-15 |
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| CN201921754679.8U Active CN210528490U (en) | 2019-10-18 | 2019-10-18 | Preparation facilities of nanometer silica aerogel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395873A (en) * | 2021-12-17 | 2022-04-26 | 青岛末未纺织品有限公司 | Preparation device and method of natural antibacterial cotton-containing modal chitosan fiber blended knitted fabric |
| CN115007011A (en) * | 2022-08-09 | 2022-09-06 | 华陆(天津)新材料科技有限公司 | Preparation process of nano-pore aerogel heat insulation coating |
| CN115304067A (en) * | 2022-10-09 | 2022-11-08 | 江苏脒诺甫纳米材料有限公司 | Preparation equipment and preparation process of high-temperature-resistant ceramic aerogel |
-
2019
- 2019-10-18 CN CN201921754679.8U patent/CN210528490U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395873A (en) * | 2021-12-17 | 2022-04-26 | 青岛末未纺织品有限公司 | Preparation device and method of natural antibacterial cotton-containing modal chitosan fiber blended knitted fabric |
| CN115007011A (en) * | 2022-08-09 | 2022-09-06 | 华陆(天津)新材料科技有限公司 | Preparation process of nano-pore aerogel heat insulation coating |
| CN115304067A (en) * | 2022-10-09 | 2022-11-08 | 江苏脒诺甫纳米材料有限公司 | Preparation equipment and preparation process of high-temperature-resistant ceramic aerogel |
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