CN114163846A - Aerogel thermal insulation coating and equipment for producing same - Google Patents
Aerogel thermal insulation coating and equipment for producing same Download PDFInfo
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- CN114163846A CN114163846A CN202111338989.3A CN202111338989A CN114163846A CN 114163846 A CN114163846 A CN 114163846A CN 202111338989 A CN202111338989 A CN 202111338989A CN 114163846 A CN114163846 A CN 114163846A
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- 238000000576 coating method Methods 0.000 title claims abstract description 49
- 239000011248 coating agent Substances 0.000 title claims abstract description 46
- 239000004964 aerogel Substances 0.000 title claims abstract description 38
- 238000009413 insulation Methods 0.000 title claims abstract description 26
- 238000004537 pulping Methods 0.000 claims abstract description 38
- 238000010009 beating Methods 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000011247 coating layer Substances 0.000 claims description 38
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052681 coesite Inorganic materials 0.000 claims description 7
- 229910052906 cristobalite Inorganic materials 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229910052682 stishovite Inorganic materials 0.000 claims description 7
- 229910052905 tridymite Inorganic materials 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 239000003973 paint Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical group [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical group [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- -1 silicon modified fluorocarbon Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000012720 thermal barrier coating Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
Abstract
The invention belongs to the technical field of coatings, and particularly relates to an aerogel thermal insulation coating and production equipment thereof. According to the invention, the purpose of three layers of high-strength envelopes on the surface of the aerogel is achieved by prolonging the pulping time and setting a proper pulping pH range. In addition, the invention also arranges the premixing stirring column, the beating machine body, the beating driving column, the rotating shaft unit, the shell unit, the belt unit, the clamping wheel unit and the connecting pipe unit on the premixing machine body, so that the time and the power of the premixing operation can be synchronously supplied to the beating operation, and the invention has the advantages of ensuring that the time and the power of the premixing operation are synchronous to the beating operation on the premise of longer beating timeThe relatively short overall pulping operation is time and energy consuming. The invention has the following advantages: SiO 22The three layers of envelopes on the aerogel are stable and efficient in structure, the envelope forming process is reasonable and reliable, and the final heat-insulating coating is guaranteed to have better weather resistance.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to an aerogel thermal insulation coating and production equipment thereof.
Background
Aerogel thermal insulation coating is generally used on the surfaces of various heat supply pipelines to achieve the effects of heat preservation and heat insulation. The composition of aerogel thermal insulation coating generally comprises three main categories, namely film forming material and filling materialThe film forming material may be self-crosslinking acrylic emulsion and the stuffing may be SiO2Or TiO2Aerogel, hollow glass beads, potassium hexatitanate whisker and the like, and the auxiliary agent is some conventional coupling agents, leveling agents and the like.
However, the existing aerogel thermal insulation coating also finds a plurality of problems in the using process, wherein the most critical is that the dispersity of the filler is not enough, which is the most prominent in aerogel, so that the aerogel needs to be modified before being added for use.
For example, chinese patent publication No. CN110734686A, published as 2020.01.31, discloses an aqueous reflective thermal insulation coating and a preparation method thereof, wherein the reflective thermal insulation coating is prepared by compounding carbon nanotube modified epoxy resin and organic silicon modified fluorocarbon emulsion as a film forming substance, so that the flexibility and frictional wear performance of a paint film are remarkably enhanced, and the adhesive force of the paint film is improved; silicon-aluminum coating modified nano titanium dioxide is selectively added, so that a paint film has extremely high weather resistance and reflective heat-insulating property; the high-hardness particles such as the nanometer ytterbium oxide, the kaolin, the heavy calcium and the like are matched, so that the high-hardness particles are embedded in a compact paint film formed by the film forming substances when the paint is formed, when the surface of the paint film is rubbed by the outside, the high-hardness particles bear most of the friction force, the abrasion of the surface of the paint film is reduced, and the reflective heat insulation property, the wear resistance and the washing and brushing resistance of the paint film are comprehensively improved.
Although the dispersibility of the silicon-aluminum coated modified nano titanium dioxide in the heat-insulating coating is good, the problem of insufficient thickness of a coating layer still exists, and finally TiO is caused2The photoactive group of (a) is not completely hidden, so that the weather resistance of the thermal barrier coating is not removed at all times.
Therefore, there is a need for improved processes and apparatus for coating titanium dioxide to ensure SiO2Or TiO2The aerogel has a coating layer with enough thickness and strength.
For another example, chinese utility model patent that patent publication number is CN209188637U, and announcement day is 2019.08.02 discloses a be used for white carbon black making beating device for coating, the dipping barrel comprises a barrel body, the welding of staving one side has the water injection pipe, water injection pipe surface swivelling joint has fluidflowmeter, there is the speed reducer staving top through the screw connection, speed reducer one side can be dismantled and be connected with the storage bucket, the blowing pipe has been pegged graft to the storage bucket bottom, the staving inner chamber rotates and is connected with the stirring rake, the welding of stirring rake below has the air duct, the through-hole has been seted up on the air duct surface, air duct one end is connected with the air pump through the buckle, storage bucket fixed surface is connected with the scale mark.
However, the beating device in the utility model needs an independent motor for beating operation, and the power and time of the premixing step before beating operation are not useful, so that the whole coating production process has the problems of long time consumption and high energy consumption.
Disclosure of Invention
The invention provides an aerogel thermal insulation coating which can achieve the purpose of three-layer high-strength coating on the surface of aerogel by prolonging the pulping time and setting a proper pulping pH range mode.
In addition, the invention also provides a premixing and beating all-in-one machine, which can lead the time and power of premixing operation to be synchronously supplied for beating operation by arranging the premixing stirring column, the beating machine body, the beating driving column, the rotating shaft unit, the shell unit, the belt unit, the clamping wheel unit and the connecting pipe unit on the premixing machine body, thus ensuring that the time and the energy consumption of the whole beating operation are relatively short on the premise of longer beating time.
The technical scheme adopted by the invention for solving the problems is as follows: an aerogel thermal insulation coating comprises coated SiO2Aerogel, the coated SiO2The coating layers of the aerogel sequentially comprise a silicon coating layer, an aluminum coating layer and a zirconium coating layer from inside to outside, wherein the thickness of the silicon coating layer is 2.0-6.0 mu m, the thickness of the aluminum coating layer is 1.0-1.5 mu m, and the thickness of the zirconium coating layer is 4.0-15.0 mu m.
The further preferred technical scheme is as follows: the pulping and coating time of the silicon coating layer is 15-20min, and the pH value of the slurry is 7.0-8.0; the pulping and coating time of the aluminum coating layer is 10-15min, and the pH value of the slurry is 8.5-9.0; the pulping and coating time of the zirconium coating layer is 30-35min, and the pH value of the slurry is 8.0-12.0.
The utility model provides an equipment is used in production of aerogel insulation coating, includes premixing organism, mixes the stirring post in advance, the making beating organism to and the making beating drive post, still including pegging graft the setting on the premixing organism bottom plate and connect the rotation axis unit of mixing the post in advance sets up bottom surface under the premixing organism with be used for covering on the making beating organism upper surface the shell unit of rotation axis unit sets up on the rotation axis unit and wear out be used for connecting behind the shell unit the belt unit of making beating drive post sets up be in on the shell unit and be used for the tensioning the tight pulley unit of belt unit, and set up and be in premixing organism discharge gate with connecting pipe unit between the making beating organism feed inlet.
The further preferred technical scheme is as follows: the rotating shaft unit comprises a vertical shaft body arranged on the hole of the bottom plate of the premixing machine body and a coupling arranged between the premixing stirring column and the vertical shaft body.
The further preferred technical scheme is as follows: the shell unit comprises an upper pipe section, a lower pipe section and an arc-shaped plate, wherein the upper pipe section is arranged on the lower bottom surface of the premixing machine body and is sleeved with the vertical shaft body, the lower pipe section is arranged on the upper surface of the pulping machine body and is sleeved with the vertical shaft body, the upper pipe section and the lower pipe section are respectively arranged on the upper pipe section and the lower pipe section and are used for passing through the two perforated circular plates of the vertical shaft body, the arc-shaped plate is arranged between the two perforated circular plates and is used for extending outwards to install the belt unit, and the outer diameter of each perforated circular plate is larger than the outer diameter of the upper pipe section and the outer diameter of the lower pipe section.
The further preferred technical scheme is as follows: the belt unit comprises a driving wheel arranged on the vertical shaft body, a driven wheel arranged on the pulping driving column and having a diameter smaller than that of the driving wheel, and a driving belt sleeved on the driving wheel and the driven wheel and penetrating through the opening position of the arc-shaped plate.
The further preferred technical scheme is as follows: the clamping wheel unit comprises a U-shaped frame part and a guide wheel part, wherein the U-shaped frame part is arranged at the opening position of the arc-shaped plate and used for connecting an upper hole circular plate and a lower hole circular plate, the U-shaped frame part is spliced and arranged on the U-shaped frame part, and the guide wheel part is used for tensioning in a moving mode along the direction of the driving wheel and used for driving the belt.
The further preferred technical scheme is as follows: the U-shaped frame part comprises a cross beam plate arranged on the lower surface of the upper perforated circular plate, two vertical columns which are respectively arranged at the positions of two ends of the lower surface of the cross beam plate and used for connecting the lower perforated circular plate, and mounting holes which are arranged on the cross beam plate and used for arranging the guide wheel parts.
The further preferred technical scheme is as follows: the guide wheel part comprises a threaded column arranged on the mounting hole, a lateral plate body arranged on the end face of one side, close to the driven wheel, of the threaded column, two pulleys arranged at two ends of the lateral plate body and located at the position outside the driving belt respectively, and a tensioning nut arranged on the threaded column and used for performing inner limiting operation on the cross beam plate.
The further preferred technical scheme is as follows: the connecting pipe unit comprises two pipe body flanges which are respectively arranged on the premixing machine body and the pulping machine body, and a vertical pipe body which is arranged between the two pipe body flanges.
The invention has the following advantages:
first, SiO2The three layers of envelopes on the aerogel are stable and efficient in structure, the envelope forming process is reasonable and reliable, and the final heat-insulating coating is guaranteed to have better weather resistance;
secondly, the structure of the premixing and pulping integrated machine is ingenious and stable, and the power of the premixing machine and the time of synchronous premixing operation are utilized to ensure that the whole coating production process still has the advantages of short overall time consumption and low energy consumption on the premise of relatively long pulping time;
thirdly, the transmission structure between the premixing stirring column and the pulping driving column has good stability, high safety, adjustable tightness of the transmission structure and long effective service life;
fourthly, the pulping machine body is hung on the premixing machine body, has enough installation strength and is not easy to drop.
Drawings
FIG. 1 shows the coated SiO film of the present invention2Structural schematic of aerogel.
FIG. 2 is a schematic structural diagram of the premixing and beating all-in-one machine in the invention.
Fig. 3 is a schematic structural view of the belt unit of the present invention in a top view.
Fig. 4 is a schematic structural view of the housing unit of the present invention.
Fig. 5 is a schematic view showing the construction of the pinch wheel unit according to the present invention.
Fig. 6 is a schematic structural view of a connection pipe unit according to the present invention.
In the drawings, the reference numerals denote the following components: the device comprises a silicon coating layer a, an aluminum coating layer b, a zirconium coating layer c, a premixing machine body 11, a premixing stirring column 12, a pulping machine body 13, a pulping driving column 14, a rotating shaft unit 1, a shell unit 2, a belt unit 3, a clamping wheel unit 4, a connecting pipe unit 5, a vertical shaft body 101, a coupler 102, an upper pipe section 201, a lower pipe section 202, an opening circular plate 203, an arc-shaped plate 204, a driving wheel 301, a driven wheel 302, a driving belt 303, a U-shaped frame part 401, a guide wheel part 402, a cross beam plate 401a, a vertical column 401b, a mounting hole 401c, a threaded column 402a, a lateral plate body 402b, a pulley 402c, a tensioning nut 402d, a pipe body flange 501 and a vertical pipe body 502.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Examples
As shown in attached figures 1-6, an aerogel thermal insulation coating comprises a coated SiO film2Aerogel, the coated SiO2The coating layers of the aerogel sequentially comprise a silicon coating layer, an aluminum coating layer and a zirconium coating layer from inside to outside, wherein the thickness of the silicon coating layer is 2.0-6.0 mu m, the thickness of the aluminum coating layer is 1.0-1.5 mu m, and the thickness of the zirconium coating layer is 4.0-15.0 mu m.
In this embodiment, the coating material used for the silicon coating layer is magnesium silicate, the coating material used for the aluminum coating layer is sodium aluminate, and the coating material used for the zirconium coating layer is sodium zirconate, so that three layers of coatings with sufficient thickness and sufficient covering are sequentially formed on the surface of the aerogel.
The pulping and coating time of the silicon coating layer is 15-20min, and the pH value of the slurry is 7.0-8.0; the pulping and coating time of the aluminum coating layer is 10-15min, and the pH value of the slurry is 8.5-9.0; the pulping and coating time of the zirconium coating layer is 30-35min, and the pH value of the slurry is 8.0-12.0.
In the embodiment, the pulping enveloping environments of the three layers of envelopes are alkaline, the required pH can be adjusted by adopting common alkali liquor, and the pulping time of at least 10min is obviously longer than that of the prior art, so that the full pulping enveloping effect is ensured.
The utility model provides an equipment is used in production of aerogel thermal insulation coating, includes premixing organism 11, mixes the stirring post 12 in advance, makes beating organism 13 to and make beating drive post 14, still including pegging graft the setting in on the 11 bottom plates in advance and connect the rotation axis unit 1 of stirring post 12 in advance sets up bottom surface under premixing organism 11 with be used for covering on the 13 upper surface of making beating organism the shell unit 2 of rotation axis unit 1 sets up on the rotation axis unit 1 and wear out be used for connecting behind the shell unit 2 the belt unit 3 of making beating drive post 14 sets up on the shell unit 2 and be used for the tensioning the pinch roller unit 4 of belt unit 3, and set up in premixing organism 11 discharge gate with connecting pipe unit 5 between the 13 feed inlets of making beating organism.
In this embodiment, the production equipment refers to a premixing and beating all-in-one machine, and the advantages thereof include at least the following items:
firstly, one driving motor is used for the premixing operation and the pulping operation, so that the whole production process is more efficient and economical;
secondly, on the premise of one driving motor, the previous slurry is subjected to premixing operation while being coated, and the two actions are performed simultaneously, so that the whole coating production process has the advantage of short time consumption;
thirdly, the shell unit 2 is used for stably suspending the beater body 13 on the premixing machine body 11 together with the connecting pipe unit 5, so that the mounting structure of the beater body 13 is saved;
fourthly, the side opening of the outer shell unit 2 is designed to ensure that the belt unit 3 which needs to be extended is effectively installed, at the moment, the upper and lower connecting capacity of the outer shell unit 2 is reduced, so the clamping wheel unit 4 is arranged to make up for the problem of insufficient strength at the outer shell unit 2, and the clamping wheel unit 4 can just tension and adjust the belt unit 3, so that the belt can be tensioned and reused even if the belt is slightly loosened, and therefore, the three units have the advantages of strong structural relevance and outstanding functional complementarity.
The rotating shaft unit 1 includes a vertical shaft body 101 disposed on an opening of a bottom plate of the premixer body 11, and a coupling 102 disposed between the premixing stirring column 12 and the vertical shaft body 101.
In this embodiment, the lower end of the premixing and stirring column 12 is disposed in the premixing machine body 11, so that a hole is formed in the bottom plate of the premixing machine body 11, and the vertical shaft 101 is connected to the lower end of the premixing and stirring column 12 upward through the coupling 102.
In addition, the opening on the bottom plate can be provided with a dynamic seal, such as an O-ring, so as to ensure that the vertical shaft body 101 has the characteristics of rotation reliability and sealing without leakage.
The outer shell unit 2 comprises an upper pipe section 201 which is arranged on the lower bottom surface of the premixing machine body 11 and is sleeved with the vertical shaft body 101, a lower pipe section 202 which is arranged on the upper surface of the pulping machine body 13 and is sleeved with the vertical shaft body 101, two perforated circular plates 203 which are respectively arranged on the upper pipe section 201 and the lower pipe section 202 and are used for passing through the vertical shaft body 101, and arc plates 204 which are arranged between the upper perforated circular plates 203 and the lower perforated circular plates 203 and are used for extending outwards and installing the belt unit 3, wherein the outer diameters of the perforated circular plates 203 are larger than the outer diameters of the upper pipe section 201 and the lower pipe section 202.
In this embodiment, the housing unit 2 may be integrally formed, and together with the connecting pipe unit 5, the beater body 13 is suspended, wherein the upper pipe section 201 and the lower pipe section 202 are used for simply sleeving and protecting the vertical shaft body 101.
The arc plate 204 and the two perforated circular plates 203 form a relatively large open cavity for the purpose of: 1. a pulley for internally mounting the belt unit 3; 2. allowing the belt of the belt unit 3 to be extended outward.
Finally, the central angle degree range of the arc-shaped plate 204 is larger than 180 degrees, and the opening size of the arc-shaped plate 204 is ensured to be smaller as far as possible on the premise that a belt can be installed, because the larger the circular ring of the arc-shaped plate 204 is, the higher the upper and lower connection strength is.
The belt unit 3 comprises a driving wheel 301 arranged on the vertical shaft body 101, a driven wheel 302 arranged on the beating driving column 14 and having a diameter smaller than that of the driving wheel 301, and a driving belt 303 sleeved on the driving wheel 301 and the driven wheel 302 and passing through the opening position of the arc-shaped plate 204.
In the prior art, the stirring speed of the premixing operation is smaller than that of the pulping operation, so that the mode that a large driving wheel 301 drives a small driven wheel 302 is arranged, and the rotating speed of the pulping operation is ensured to be enough.
In addition, the driving belt 303 is a conventional rubber belt, and the driving wheel 301 and the driven wheel 302 are both belt pulleys.
The clamping wheel unit 4 comprises a U-shaped frame part 401 arranged at the opening position of the arc-shaped plate 204 and used for connecting the upper and lower perforated circular plates 203, and a guide wheel part 402 which is inserted and arranged on the U-shaped frame part 401 and used for tensioning the driving belt 303 by moving towards the driving wheel 301.
In this embodiment, the U-shaped frame 401 has two functions: firstly, at the opening of the arc-shaped plate 204, the two circular plates 203 with openings are used for connecting up and down, so that the whole housing unit 2 has enough connection tensile strength; secondly, the guide wheel part 402 is adjusted by internal and external contraction, so that the guide wheel part 402 can be tightened again and used continuously even if the driving belt 303 is loosened within a certain range.
The initial position of the guide wheel portion 402 is closer to the small driven wheel 302, and then the guide wheel portion 402 is retracted and fixed toward the driving wheel 301, i.e., inward, so as to tension the driving belt 303 which is not usable due to slack.
The U-shaped frame portion 401 includes a beam plate 401a disposed on the lower surface of the perforated circular plate 203 above, two vertical posts 401b disposed at both end positions on the lower surface of the beam plate 401a, respectively, for connecting the perforated circular plate 203 below, and a mounting hole 401c disposed on the beam plate 401a for disposing the guide wheel portion 402.
In this embodiment, the beam plate 401a and the two vertical columns 401b form a U-shaped frame structure that can be stably connected and reinforced up and down, so as to ensure that the perforated circular plate 203 is located at the opening of the arc plate 204 and is not easy to bend or break.
The inner side edge of the beam plate 401a is used for pulling the guide wheel part 402, so as to ensure that the guide wheel part 402 stably clamps the driving belt 303.
The guide wheel portion 402 includes a threaded post 402a provided in the mounting hole 401c, a lateral plate 402b provided on one end surface of the threaded post 402a near the driven wheel 302, two pulleys 402c provided at both ends of the lateral plate 402b and located at positions outside the drive belt 303, and a tightening nut 402d provided on the threaded post 402a and configured to perform an inside restraining operation on the beam plate 401 a.
In this embodiment, the pulley 402c is also a belt pulley, the cross-sectional shape of the threaded column 402a is square, and the four edges are provided with threads for preventing rotation and screwing, and the tensioning nut 402d is used for performing rotation adjustment on the inner side of the beam plate 401a to ensure sufficient and appropriate force of the pulley 402c pressing on the driving belt 303 and bilateral symmetry.
The connecting pipe unit 5 includes two pipe body flanges 501 respectively provided on the pre-mixer body 11 and the beater body 13, and a vertical pipe body 502 provided between the two pipe body flanges 501.
In this embodiment, two body flanges 501 are respectively installed by screw connection, and integrally formed with the vertical body 502, so as to ensure sufficient vertical connection tensile strength.
In addition, the vertical pipe body 502 is upwards connected with a discharge hole of the premixing operation and a feed inlet of the pulping operation, and is provided with a valve, so that the feasibility and the stability of the premixing and pulping integrated operation are ensured.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (10)
1. An aerogel thermal insulation coating comprises coated SiO2Aerogel, characterized in that: the coated SiO film2The coating layers of the aerogel sequentially comprise a silicon coating layer, an aluminum coating layer and a zirconium coating layer from inside to outside, wherein the thickness of the silicon coating layer is 2.0-6.0 mu m, the thickness of the aluminum coating layer is 1.0-1.5 mu m, and the thickness of the zirconium coating layer is 4.0-15.0 mu m.
2. The aerogel thermal insulation coating according to claim 1, which is characterized in that: the pulping and coating time of the silicon coating layer is 15-20min, and the pH value of the slurry is 7.0-8.0; the pulping and coating time of the aluminum coating layer is 10-15min, and the pH value of the slurry is 8.5-9.0; the pulping and coating time of the zirconium coating layer is 30-35min, and the pH value of the slurry is 8.0-12.0.
3. An apparatus for producing aerogel thermal insulation coating as claimed in claim 2, comprising a premixing machine body (11), a premixing stirring column (12), a beating machine body (13), and a beating driving column (14), characterized in that: the automatic pulping machine is characterized by further comprising a rotating shaft unit (1) which is inserted and arranged on a bottom plate of the premixing machine body (11) and connected with the premixing stirring column (12), a shell unit (2) which is arranged on the lower bottom surface of the premixing machine body (11) and the upper surface of the pulping machine body (13) and used for covering the rotating shaft unit (1), a belt unit (3) which is arranged on the rotating shaft unit (1) and penetrates out of the shell unit (2) and then used for being connected with the pulping driving column (14), a clamping wheel unit (4) which is arranged on the shell unit (2) and used for tensioning the belt unit (3), and a connecting pipe unit (5) which is arranged between a discharge port of the premixing machine body (11) and a feed port of the pulping machine body (13).
4. The apparatus for producing aerogel thermal insulation coating according to claim 3, wherein: the rotating shaft unit (1) comprises a vertical shaft body (101) arranged on an opening of a bottom plate of the premixing machine body (11), and a coupling (102) arranged between the premixing stirring column (12) and the vertical shaft body (101).
5. The apparatus for producing aerogel thermal insulation coating according to claim 4, wherein: the outer shell unit (2) comprises an upper pipe section (201) which is arranged on the lower bottom surface of the premixing machine body (11) and is sleeved with the vertical shaft body (101), a lower pipe section (202) which is arranged on the upper surface of the pulping machine body (13) and is sleeved with the vertical shaft body (101), two perforated circular plates (203) which are arranged on the upper pipe section (201) and the lower pipe section (202) and are used for passing through the vertical shaft body (101), and arc plates (204) which are arranged between the two perforated circular plates (203) and are used for extending outwards to install the belt unit (3), wherein the outer diameters of the perforated circular plates (203) are larger than the outer diameters of the upper pipe section (201) and the lower pipe section (202).
6. The apparatus for producing aerogel thermal insulation coating according to claim 5, wherein: the belt unit (3) comprises a driving wheel (301) arranged on the vertical shaft body (101), a driven wheel (302) arranged on the beating driving column (14) and with the diameter smaller than that of the driving wheel (301), and a driving belt (303) sleeved on the driving wheel (301) and the driven wheel (302) and penetrating through the opening position of the arc-shaped plate (204).
7. The apparatus for producing aerogel thermal insulation coating according to claim 6, wherein: the clamping wheel unit (4) comprises a U-shaped frame portion (401) which is arranged at the opening position of the arc-shaped plate (204) and used for connecting an upper hole round plate and a lower hole round plate (203), and a guide wheel portion (402) which is inserted into the U-shaped frame portion (401) and used for tensioning the driving belt (303) through the moving mode towards the direction of the driving wheel (301).
8. The apparatus for producing aerogel thermal insulation coating according to claim 7, wherein: the U-shaped frame portion (401) includes a beam plate (401a) provided on the lower surface of the perforated circular plate (203) above, two vertical columns (401b) provided at both end positions on the lower surface of the beam plate (401a) respectively and for connecting the perforated circular plate (203) below, and mounting holes (401c) provided on the beam plate (401a) and for providing the guide wheel portion (402).
9. The apparatus for producing an aerogel thermal insulation coating according to claim 8, wherein: the guide wheel portion (402) includes a threaded post (402a) provided on the mounting hole (401c), a lateral plate body (402b) provided on one side end surface of the threaded post (402a) near the driven wheel (302), two pulleys (402c) provided at both ends of the lateral plate body (402b) respectively and located at positions outside the drive belt (303), and a tightening nut (402d) provided on the threaded post (402a) and configured to perform an inside restraining operation on the cross beam plate (401 a).
10. The apparatus for producing aerogel thermal insulation coating according to claim 3, wherein: the connecting pipe unit (5) comprises two pipe body flanges (501) which are respectively arranged on the premixing machine body (11) and the pulping machine body (13), and a vertical pipe body (502) which is arranged between the two pipe body flanges (501).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111338989.3A CN114163846A (en) | 2021-11-12 | 2021-11-12 | Aerogel thermal insulation coating and equipment for producing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111338989.3A CN114163846A (en) | 2021-11-12 | 2021-11-12 | Aerogel thermal insulation coating and equipment for producing same |
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| CN114163846A true CN114163846A (en) | 2022-03-11 |
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| CN202111338989.3A Pending CN114163846A (en) | 2021-11-12 | 2021-11-12 | Aerogel thermal insulation coating and equipment for producing same |
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Application publication date: 20220311 |