CN116173847A

CN116173847A - Preparation facilities of environmental protection aerogel heat-insulating paint

Info

Publication number: CN116173847A
Application number: CN202310199604.2A
Authority: CN
Inventors: 杨玉山; 孙庆丰; 党宝康; 陈逸鹏; 王超; 李莹莹
Original assignee: Zhejiang A&F University ZAFU
Current assignee: Zhejiang A&F University ZAFU
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-05-30

Abstract

The invention discloses a preparation device of environment-friendly aerogel heat-insulating paint, which comprises a base, wherein a plurality of guide shafts are fixed on the base, a pressure pool is arranged between the guide shafts, a supporting plate is arranged in the pressure pool, a cover plate is arranged in the guide shafts in a vertically sliding manner, a roller belt is further arranged on the base, a sliding rail is fixed above the roller belt, a sliding table is slidably arranged in the sliding rail, and two nozzles are arranged in the sliding table. Compared with the prior art, the invention has good heat insulation effect and high processing efficiency.

Description

Preparation facilities of environmental protection aerogel heat-insulating paint

Technical Field

The invention relates to the technical field of heat insulation materials, in particular to a preparation device of an environment-friendly aerogel heat insulation coating.

Background

The silica aerogel is a nano porous solid material with low density, low heat conductivity, high light transmittance, high porosity and high specific surface area, and the prepared heat insulation material has good heat insulation performance, and is mainly formed by preparing loose and porous silica by a carbon dioxide semi-critical substitution method in the prior art, and has low preparation efficiency and low yield. In the prior art, titanium dioxide is added into silicon dioxide, and the sunlight reflection property and the heat insulation property of the titanium dioxide are utilized to enhance the heat conduction property of the coating, but when the titanium dioxide is added in an amount exceeding a certain amount, the titanium dioxide is agglomerated in gel, so that the reflectivity of the coating is reduced.

Therefore, it is necessary to provide a device for preparing an environment-friendly aerogel thermal insulation coating, so as to solve the problems in the background art.

Disclosure of Invention

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a preparation facilities of environmental protection aerogel heat-insulating coating, includes the base, be fixed with many guiding axles on the base, there is the pressure cell between the guiding axle, be equipped with the backup pad in the pressure cell, can be equipped with the apron in the guiding axle with sliding from top to bottom, still be equipped with the roller area on the base, the roller area top is fixed with the slide rail, slidable is equipped with the slip table in the slide rail, be equipped with two nozzles in the slip table.

Further, preferably, a screw rod is rotatably arranged in the sliding rail, the screw rod is in threaded connection with the sliding table, and the screw rod can be driven to rotate by a driving device.

Further, preferably, two sliding seats are slidably provided in the sliding table, and the two nozzles are respectively provided in the sliding seats.

Further, preferably, the sliding table is hinged with a connecting rod, the other ends of the two connecting rods are hinged into a hinge block, the hinge block is located at the center position between the two sliding seats, and the hinge block is connected with the sliding table through a vertical telescopic cylinder.

Further, preferably, the nozzle is rotatably disposed in the slide, a gear is fixed in a rotating shaft of the nozzle, and teeth meshed with the gear are formed on the slide table.

Further, preferably, a plurality of cylinders are provided between the cover plate and the base.

Further, preferably, a methanol tank is fixed at the upper end of the guide shaft, and the methanol tank can be communicated with the pressure tank through an electromagnetic valve.

Further, preferably, the supporting plates are distributed vertically, the supporting plates are fixed together through connecting rods, and two sides of the uppermost supporting plate are respectively connected with the bottom of the pressure tank through lifting cylinders.

Further, preferably, each supporting plate is embedded with a heating pipe.

Further, preferably, a return pipe is connected to the bottom of the pressure tank, a suction pump is connected to the return pipe, and an output end of the suction pump is connected to the methanol tank.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, when the sliding seat slides, the nozzles synchronously rotate, and when the sliding seat is far away from each other, the nozzles incline towards the direction center, so that the spraying range of the two nozzles can be larger, and the sprayed coating can always be mutually crossed and uniformly mixed.

According to the invention, the heights of the supporting plates can be changed through the lifting cylinder, so that each supporting plate can be sequentially leveled with the roller belt, and the plates sprayed with the gel layer are sequentially placed in each supporting plate, so that methanol in the pressure tank can soak a plurality of plates at the same time, and the processing efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a device for preparing an environmentally friendly aerogel thermal insulation coating;

FIG. 2 is a schematic view of a nozzle;

FIG. 3 is a schematic structural view of a support plate;

in the figure: 1. a base; 2. a guide shaft; 3. a pressure tank; 4. a support plate; 41. a connecting rod; 42. a lifting cylinder; 5. a cover plate; 6. a roller belt; 7. a slide rail; 8. a sliding table; 81. a screw rod; 82. a driving device; 9. a nozzle; 91. a slide; 92. a connecting rod; 93. a hinge block; 94. a telescopic cylinder; 95. a gear; 10. a cylinder; 11. a methanol tank; 12. a return pipe; 13. and a suction pump.

Detailed Description

Referring to fig. 1, in the embodiment of the invention, a preparation device for an environment-friendly aerogel heat insulation coating comprises a base 1, wherein a plurality of guide shafts 2 are fixed on the base 1, a pressure tank 3 is arranged between the guide shafts 2, a support plate 4 is arranged in the pressure tank 3, a cover plate 5 is arranged in the guide shafts 2 in a vertically sliding manner, a roller belt 6 is also arranged on the base 1, a sliding rail 7 is fixed above the roller belt 6, a sliding table 8 is arranged in the sliding rail 7 in a sliding manner, and two nozzles 9 are arranged in the sliding table 8. The gel layer can be sprayed onto the sheet material transported on the roll belt 6 by means of the nozzles 9, and the sheet material after spraying the gel layer can fall into the pressure tank 3.

Referring to fig. 2, in the present embodiment, a screw rod 81 is rotatably disposed in the sliding rail 7, the screw rod 81 is in threaded connection with the sliding table 8, and the screw rod 81 can be driven to rotate by a driving device 82. The sliding table 8 can slide in the sliding rail 7 by rotating the screw rod 81, so that the nozzle 9 can spray on the plate transversely.

In this embodiment, two sliding bases 91 are slidably disposed in the sliding table 8, and two nozzles 9 are respectively disposed in the sliding bases 91.

In this embodiment, the sliding table 8 is hinged with a connecting rod 92, the other ends of the two connecting rods 92 are both hinged to a hinge block 93, the hinge block 93 is located at the center position between the two sliding seats 91, and the hinge block 93 is connected with the sliding table 8 through a vertical telescopic cylinder 94. The telescopic cylinder 94 can lift the hinged block 93 to synchronously drive the two nozzles 9 to slide so as to change the distance between the two nozzles 9.

In this embodiment, the nozzle 9 is rotatably disposed in the sliding seat 91, a gear 95 is fixed in the rotating shaft of the nozzle 9, and teeth meshed with the gear 95 are formed on the sliding table 8. That is, when the slide 91 slides, the nozzles 9 are rotated synchronously, and when the slide 91 moves away from each other, the nozzles 9 are inclined toward the center of the direction, so that the spraying range of the two nozzles 9 can be made larger, and the sprayed paint can always cross each other to be mixed uniformly.

In this embodiment, a plurality of cylinders 10 are disposed between the cover plate 5 and the base 1, and the cylinders 10 can drive the cover plate 5 to seal the pressure tank 3.

In this embodiment, a methanol tank 11 is fixed at the upper end of the guide shaft 2, and the methanol tank 11 can be connected to the pressure tank 3 through an electromagnetic valve. The methanol in the methanol tank 11 is released into the pressure tank 3 to soak the plate on the supporting plate 4, so that the methanol is corroded into the gel layer of the plate to form small holes, and the gel layer is converted into a loose porous structure.

Referring to fig. 3, in this embodiment, the support plates 4 are vertically distributed with a plurality of support plates 4, the plurality of support plates 4 are fixed together by connecting rods 41, and two sides of the uppermost support plate 4 are respectively connected with the bottom of the pressure tank 3 by lifting cylinders 42. That is, the height of the support plates 4 can be changed by the lifting cylinder 42, so that each support plate 4 can be sequentially aligned with the roller belt 6, so that the plates sprayed with the gel layer can be sequentially placed in each support plate 4, and the methanol in the pressure tank 3 can simultaneously soak a plurality of plates, thereby improving the processing efficiency.

In this embodiment, a heating pipe is embedded in each supporting plate 4. Can uniformly heat each sheet material.

In this embodiment, a return pipe 12 is connected to the bottom of the pressure tank 3, a suction pump 13 is connected to the return pipe 12, and an output end of the suction pump 13 is connected to the methanol tank 11. So that the methanol in the pressure tank 3 can be recycled.

In the concrete implementation, the silicon dioxide gel and the titanium dioxide powder are respectively introduced into the two nozzles 9, when the plate is conveyed to the position below the nozzles 9 on the roller belt 6, the sliding table 8 is driven by the screw rod 81 to slide, so that the two nozzles 9 are respectively sprayed with the silicon dioxide gel and the titanium dioxide powder on the plate, the distance and the inclination angle of the two nozzles 9 can be adjusted through the telescopic cylinder 94, when the coating is required to be thicker, the distance between the two nozzles 9 is reduced, and when the coating is required to be thinner, the distance between the two nozzles 9 is increased, so that the coating quality and the spraying efficiency are both considered, the sprayed coating can always be mutually crossed and uniformly mixed, and because the silicon dioxide gel and the titanium dioxide powder are not pre-mixed, the agglomeration phenomenon of the titanium dioxide powder in the gel can be effectively prevented, and the heat insulation performance of the titanium dioxide is better;

the height of the supporting plates 4 can be changed through the lifting cylinder 42, so that each supporting plate 4 can be flush with the roller belt 6 in sequence, the plates sprayed with the gel layers are placed in each supporting plate 4 in sequence, the supporting plates 4 are lowered to be completely submerged in the pressure tank 3, after the gel on the plates is formed, the methanol tank 11 injects methanol into the pressure tank 3, the cover plate 5 seals the pressure tank 3 through the cylinder 10, each plate is soaked in the methanol, the methanol replaces the moisture in the gel, and the methanol corrodes into the gel layers of the plates to form small holes, so that the gel layers are converted into loose porous structures;

after the soaking is finished, the cover plate 5 is opened, methanol is pumped back into the methanol tank 11 through the suction pump 13, then the cover plate 5 is closed again, high-pressure carbon dioxide is injected into the pressure tank 3, each supporting plate 4 is heated, the pressure tank 3 is in a high-temperature and high-pressure state, the carbon dioxide replaces methanol in a small gel hole, the carbon dioxide reaches a semi-critical state, after the cover plate 5 is opened, the carbon dioxide volatilizes and dissipates, and as gel cannot collapse after gel forming, the gel layer in the plate is converted into transparent aerogel.

The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a preparation facilities of environmental protection aerogel heat-proof coating, includes base (1), its characterized in that, be fixed with many guiding axles (2) on base (1), there is pressure tank (3) between guiding axle (2), be equipped with backup pad (4) in pressure tank (3), can be equipped with apron (5) in guiding axle (2) sliding from top to bottom, still be equipped with roller area (6) on base (1), roller area (6) top is fixed with slide rail (7), slidable is equipped with slip table (8) in slide rail (7), be equipped with two nozzles (9) in slip table (8).

2. The preparation device of the environment-friendly aerogel heat insulation coating according to claim 1, wherein a screw rod (81) is rotatably arranged in the sliding rail (7), the screw rod (81) is in threaded connection with the sliding table (8), and the screw rod (81) can be driven to rotate by a driving device (82).

3. The preparation device of the environment-friendly aerogel heat insulation coating according to claim 1, wherein two sliding seats (91) are slidably arranged in the sliding table (8), and two nozzles (9) are respectively arranged in the sliding seats (91).

4. A preparation device of an environment-friendly aerogel heat insulation coating according to claim 3, wherein a connecting rod (92) is hinged in the sliding table (8), the other ends of the two connecting rods (92) are hinged in a hinged block (93), the hinged block (93) is located at the center position between the two sliding seats (91), and the hinged block (93) is connected with the sliding table (8) through a vertical telescopic cylinder (94).

5. The preparation device of the environment-friendly aerogel heat insulation coating according to claim 4, wherein the nozzle (9) is rotatably arranged in the sliding seat (91), a gear (95) is fixed in a rotating shaft of the nozzle (9), and teeth meshed with the gear (95) are formed on the sliding table (8).

6. The preparation device of the environment-friendly aerogel heat-insulating coating according to claim 1, wherein a plurality of air cylinders (10) are arranged between the cover plate (5) and the base (1).

7. The preparation device of the environment-friendly aerogel heat-insulating coating according to claim 1, wherein a methanol tank (11) is fixed at the upper end of the guide shaft (2), and the methanol tank (11) can be communicated into the pressure tank (3) through an electromagnetic valve.

8. The preparation device of the environment-friendly aerogel heat-insulating coating according to claim 1, wherein a plurality of support plates (4) are distributed up and down, the support plates (4) are fixed together through connecting rods (41), and two sides of the uppermost support plate (4) are respectively connected with the bottom of the pressure tank (3) through lifting cylinders (42).

9. The preparation device of the environment-friendly aerogel heat insulation coating according to claim 8, wherein a heating pipe is embedded in each supporting plate (4).

10. The preparation device of the environment-friendly aerogel heat insulation coating according to claim 1, wherein a return pipe (12) is connected to the bottom of the pressure tank (3), a suction pump (13) is connected to the return pipe (12), and the output end of the suction pump (13) is connected to the methanol tank (11).