Aerogel insulation material production device for construction

Abstract

The application discloses an aerogel thermal insulation material production device for building, and relates to the technical field of aerogel thermal insulation material production, which comprises an impregnation box, ethanol is contained in the impregnation box, a plurality of supporting legs are fixed to the bottom of the impregnation box, an ethanol discharge pipe with a solenoid valve is installed on the bottom of the impregnation box, a stirring box is installed directly above the opening of the impregnation box, a stirring mechanism is installed in the stirring box, a plurality of gel discharge pipes are installed on the bottom of the stirring box, a solenoid valve is installed on each gel discharge pipe, a cylindrical mold is installed in the impregnation box, the cylindrical mold comprises a detachably connected upper mold and a lower mold, a plurality of liquid feeding openings are formed in the upper mold, the liquid feeding openings are opposite to the gel discharge pipes, and the liquid level of the ethanol in the impregnation box is close to the mold opening of the lower mold. The application integrates gel production and impurity suction, and is more time-saving and efficient than the prior art in which the gel is produced, taken out from the mold one by one and then put into the ethanol solution.

Description

Technical Field

[0001] This invention relates to the field of aerogel insulation material production technology, specifically to a production apparatus for aerogel insulation materials for building applications. Background Technology

[0002] Aerogel materials are commonly used in the construction industry and have strong thermal insulation properties. The production process is as follows: Methyl orthosilicate, water, and ammonium hydroxide are added to a mixing tank and stirred frequently until a silica gel solution is generated. Stirring continues to generate a gel solution. The gel solution is injected into individual molds, and the molds are then immersed in an ethanol solution until the gel solution solidifies. The solidified gels are then removed from the molds one by one and placed in ethanol until the ethanol completely removes impurities. Finally, the solidified gels are placed in a high-pressure container, and carbon dioxide is introduced to react and generate aerogel.

[0003] However, the processes of generating a gel solution by stirring the mixture and removing impurities by ethanol are separate, resulting in low efficiency. Moreover, repeatedly picking up and putting away the solidified gel is very time-consuming. Therefore, it is necessary to develop a device that integrates stirring and impurity removal to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a production apparatus for aerogel insulation materials for buildings, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A production apparatus for aerogel insulation material for buildings includes an impregnation tank with an open top, which contains ethanol. Multiple support legs arranged in a rectangular array are fixed to the bottom of the impregnation tank, and an ethanol discharge pipe with a solenoid valve is installed at the bottom of the impregnation tank.

[0007] A mixing tank with an open top is installed directly above the opening of the impregnation tank. Both ends of the impregnation tank are fixed with ear plates. The ear plates are connected to the mixing tank by an L-shaped support rod. The support feet of the support rod are fixed to the top of the ear plates. The free end of the support rod is fixed to the end of the mixing tank. A mixing mechanism is installed inside the mixing tank. Multiple gel discharge pipes with equal spacing are installed at the bottom of the mixing tank. Each gel discharge pipe is equipped with a solenoid valve.

[0008] A rotatable cylindrical mold is installed inside the impregnation tank. The cylindrical mold includes an upper mold and a lower mold, which are detachably connected. The upper mold has multiple equally spaced liquid inlets, which are vertically opposite to the gel discharge tube. The ethanol level in the impregnation tank is close to the mold opening of the lower mold.

[0009] In order to realize the full mixing reaction of the tetramethyl orthosilicate, water and ammonium hydroxide mixture, the stirring mechanism comprises a motor horizontally mounted at the end of the stirring box, the output shaft of the motor rotates into the stirring box, a rotating shaft is mounted in the stirring box, one end of the rotating shaft is rotatably mounted on one end wall of the stirring box, the other end is fixed with the output shaft of the motor, a plurality of equally spaced stirring blades are mounted on the rotating shaft, the motor drives the stirring blades to rotate to stir the mixture until silica gel is generated, and further stirring generates gel.

[0010] In order to realize the disassembly of the upper mold and the lower mold, the upper and lower opposite lugs are fixed on the front and rear sides of the upper mold and the lower mold, the upper and lower opposite lugs are connected by bolts, the bolts are unscrewed, the upper mold and the lower mold are disassembled, and the solidified gel is easily taken out.

[0011] In the application, preferably, a plurality of equally spaced and opposite partitions are fixed in the upper mold and the lower mold to divide the upper mold and the lower mold into a plurality of forming spaces, and the liquid inlet is located in the forming space, so that the solidified gel is clearly divided.

[0012] In order to realize the rotation of the cylindrical mold, sleeves are fixed on the inner sides of the two end walls of the dipping tank, fixed shafts are fixed on the two ends of the upper mold, the fixed shafts are rotatably installed in the sleeves, bolts are vertically screwed on the top of the sleeves, the heads of the bolts abut against the surface of the fixed shafts, the bolts are unscrewed from the sleeves, the fixed shafts can drive the cylindrical mold to rotate, after completion, the bolts are screwed on the sleeves, the heads of the bolts abut against the surface of the fixed shafts, and the locking is realized.

[0013] The unsolidified gel is injected into the lower mold until solidification, then the cylindrical mold rotates, the upper mold is located below the lower mold, the solidified gel will fall into the upper mold, a plurality of equally spaced protrusions are fixed on the front and rear walls of the upper mold, so that the contact area of the solidified gel with the upper mold is smaller, so that the ethanol in the dipping tank can fully contact with the solidified gel, so that the methanol can fully and efficiently penetrate into the gel pores, and then the impurities in the gel can be more efficiently extracted.

[0014] Compared with the prior art, the application has the following advantages:

[0015] The tetramethyl orthosilicate, water and ammonium hydroxide mixture is injected into the stirring box, the stirring mechanism is used to fully react the mixture until silica gel is generated, and further stirring generates gel, the unsolidified gel is injected into the lower mold until solidification through the cooperation of the gel discharge pipe and the electromagnetic valve.

[0016] The unsolidified gel is injected into the lower mold until solidification, then the cylindrical mold rotates, the upper mold is located below the lower mold, the solidified gel will fall into the upper mold, and is immersed in the ethanol in the dipping tank until the impurities in the solidified gel are extracted.

[0017] The application has the unexpected effect that the gel and the impurities are sucked out at the same time, which is more time-saving and efficient than the prior art in which the gel is produced, taken out of the mold one by one, and then put into the ethanol solution. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of the application Figure 1 ;

[0019] Figure 2 Structure diagram of the application Figure 2 ;

[0020] Figure 3 Structure diagram of the impregnation tank and the stirring tank of the application

[0021] Figure 4 Structure diagram of the stirring tank and the stirring mechanism of the application

[0022] Figure 5 Exploded view of the cylindrical mold of the application

[0023] Figure 6 Front view of the cylindrical mold of the application before rotation

[0024] Figure 7 Front view of the cylindrical mold of the application after rotation

[0025] Reference signs: 1, impregnation tank; 2, support leg; 3, ethanol discharge pipe; 4, stirring tank; 5, gel discharge pipe; 6, upper mold; 7, lower mold; 8, liquid inlet; 9, lug; 10, support rod; 11, motor; 12, rotating rod; 13, stirring blade; 14, lug; 15, partition; 16, sleeve; 17, fixed shaft; 18, protruding block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application.

[0027] As shown in Figure 1 , Figure 2 , the application provides a production device for aerogel thermal insulation materials for buildings, which comprises an upper-opened impregnation tank 1, the impregnation tank 1 contains ethanol, the bottom of the impregnation tank 1 is fixed with a plurality of support legs 2 arranged in a rectangular array, and the bottom of the impregnation tank 1 is provided with an ethanol discharge pipe 3 with a solenoid valve.

[0028] As shown in Figure 1 , Figure 3 , Figure 4As shown in the drawing, the upper opening stirring tank 4 is installed right above the tank mouth of the impregnation tank 1, and the ear plates 9 are fixed at both ends of the impregnation tank 1, and the L-shaped supporting rods 10 are connected between the ear plates 9 and the stirring tank 4, the supporting feet of the supporting rods 10 are fixed on the top of the ear plates 9, and the top rods are fixed on the end of the stirring tank 4, the stirring mechanism is installed in the stirring tank 4, and the gel discharge pipes 5 are installed on the bottom of the stirring tank 4, and the electromagnetic valves are installed on each gel discharge pipe 5, the specific structure of the electromagnetic valves and the principle of controlling the discharge are prior art, and will not be described in detail in the present application, the mixture of methyl orthosilicate, water and ammonium hydroxide is injected into the stirring tank 4, the mixture is fully reacted by the stirring mechanism, until the silica gel is generated by stirring, and then the gel is generated by further stirring, and the un-solidified gel is injected into the lower mold 7 through the cooperation of the gel discharge pipe 5 and the electromagnetic valve, until solidification.

[0029] As shown in the drawing, Figure 1 , Figure 2 , Figure 3 , Figure 5 , a rotatable cylindrical mold is installed in the impregnation tank 1, the cylindrical mold includes the upper mold 6 and the lower mold 7, the upper mold 6 and the lower mold 7 are detachably connected, a plurality of liquid inlet openings 8 are formed on the upper mold 6, the liquid inlet openings 8 are opposite to the gel discharge pipes 5, the liquid level of ethanol in the impregnation tank 1 is close to the mold mouth of the lower mold 7, the un-solidified gel is injected into the lower mold 7, until solidification, then the cylindrical mold is rotated, the upper mold 6 is located below the lower mold 7, the solidified gel will fall into the upper mold 6, and then is immersed in the ethanol in the impregnation tank 1, until the impurities in the solidified gel are absorbed.

[0030] As shown in the drawing, Figure 3 , Figure 4 , in order to realize the full mixing reaction of the mixture of methyl orthosilicate, water and ammonium hydroxide, the stirring mechanism includes the motor 11 which is horizontally installed on the end of the stirring tank 4, the motor 11 is powered by an external power supply and controlled by an external controller, the output shaft of the motor 11 extends into the stirring tank 4, the rotating rod 12 is installed in the stirring tank 4, one end of the rotating rod 12 is rotatably installed on one end wall of the stirring tank 4, and the other end is fixed with the output shaft of the motor 11, a plurality of stirring blades 13 are arranged on the rotating rod 12, the motor 11 drives the stirring blades 13 to rotate to stir the mixture, until the silica gel is generated by stirring, and then the gel is generated by further stirring.

[0031] As shown in the drawing, Figure 5 , in order to realize the disassembly of the upper mold 6 and the lower mold 7, the upper and lower lugs 14 are fixed on the front and rear sides of the upper mold 6 and the lower mold 7, the upper and lower lugs 14 are connected by bolts, the bolts are unscrewed to realize the disassembly of the upper mold 6 and the lower mold 7, and the solidified gel is easily taken out.

[0032] As shown in the drawing, Figure 3 , Figure 6 , Figure 7As shown, in the present application, preferably, a plurality of equally spaced, upper and lower opposing partitions 15 are fixed in the upper die 6 and the lower die 7 to divide the upper die 6 and the lower die 7 into a plurality of forming spaces, and the liquid inlet 8 is located in the forming space, so that the solidified gel block is clear.

[0033] As shown in the figure, Figure 6 , Figure 7 In order to realize the rotation of the cylindrical mold, the sleeve 16 is fixed on the inner side of the both end walls of the impregnation box 1, and the fixed shaft 17 is fixed on the both ends of the upper die 6, the fixed shaft 17 is rotatably installed in the sleeve 16, the bolt is vertically screwed on the top of the sleeve 16, and the head of the bolt abuts against the surface of the fixed shaft 17, so that the bolt can be unscrewed from the sleeve 16 to realize the rotation of the cylindrical mold driven by the fixed shaft 17, and after completion, the bolt is screwed on the sleeve 16, and the head of the bolt abuts against the surface of the fixed shaft 17 to realize locking.

[0034] As shown in the figure, Figure 5 The unsolidified gel is poured into the lower die 7 until solidification, and then the cylindrical mold is rotated, the upper die 6 is located below the lower die 7, and the solidified gel will fall into the upper die 6, a plurality of equally spaced protrusions 18 are fixed on the front and rear walls of the upper die 6, so that the contact area of the solidified gel with the upper die 6 is smaller, so that the ethanol in the impregnation box 1 can fully contact with the solidified gel, so that the methanol can fully and efficiently penetrate into the gel pores, and then the impurities in the gel can be more efficiently absorbed.

[0035] The specific working steps of the present application are as follows:

[0036] Firstly, ethanol is added to the impregnation box 1 until the liquid level of the ethanol is near the lower die 7, then tetramethyl orthosilicate, water and ammonium hydroxide are poured into the stirring box 4, the motor 11 is connected to the external power supply to start, the stirring blade 13 on the rotating rod 12 is rotated to stir the mixed liquid until the silica gel solution is generated, and the stirring is continued to generate the gel solution;

[0037] Secondly, the electromagnetic valves on the plurality of gel drainage pipes 5 are controlled to be opened at the same time by the external controller, the gel solution is poured into the lower die 7 through the gel drainage pipe 5 and the liquid inlet 8 for slow solidification, and the solidification can be completed in a few minutes, and since there is a gap between the cylindrical mold and the impregnation box 1, the ethanol can volatilize and contact with the gel solution to prevent the solidified gel from being excessively stretched;

[0038] Then, after the gel solidification is completed, in order to make its strength reach the best, the bolt is unscrewed from the sleeve 16, the cylinder type mold is rotated, the upper mold 6 is rotated to the lower mold 7, after the rotation is completed, the bolt is screwed on the sleeve 16, until the locking is fixed, in the process of rotating the upper mold 6 and the lower mold 7, the solidified gel will fall into the upper mold 6 and enter the ethanol, the ethanol will absorb the impurities in the solidified gel, the bolt on the lug 14 is unscrewed, the disassembly of the lower mold 7 on the upper mold 6 can be realized, and the solidified gel in the upper mold 6 can be taken out;

[0039] Then, the ethanol is discharged from the immersion tank 1 through the opening of the electromagnetic valve on the ethanol discharge pipe 3, and is recycled, or can not be discharged, and continues to be used, after the gel is taken out from the upper mold 6, supercritical drying is carried out, the solidified gel is put into a sealed high-pressure container, carbon dioxide is introduced into the high-pressure container, at the same time, the gel is heated and pressurized, until the carbon dioxide in the gel reaches the critical state (semi-liquid and semi-gas), then the high-pressure container can be released, and aerogel is obtained, here, the supercritical carbon dioxide ensures that the gel is not pulverized.

[0040] Finally, the most important contribution of the present application relative to the prior art is that the production of gel and the absorption of impurities are combined, compared with the prior art, after the gel is produced, it is taken out from the mold and then put into the ethanol solution, which saves time and improves efficiency.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An apparatus for producing aerogel insulation for construction, characterized in that: The impregnation tank with an upper opening contains ethanol, and a plurality of support legs arranged in a rectangular array are fixed to the bottom of the tank. A stirring tank with an upper opening is installed above the opening of the impregnation tank, and a stirring mechanism is installed in the stirring tank. A rotatable cylindrical mold is installed in the impregnation tank, and the mold includes an upper mold and a lower mold. The unhardened gel is injected into the lower mold through the gel discharge pipe and the electromagnetic valve until it is hardened.

2. An apparatus for producing aerogel thermal insulation for construction according to claim 1, characterized in that: The ears are fixed to both ends of the impregnation tank, and the ears are connected to the stirring tank through L-shaped support rods.

3. The production apparatus of an aerogel thermal insulation material for a building according to claim 1, wherein: The stirring mechanism includes a motor installed horizontally at the end of the stirring tank, and the output shaft of the motor extends into the stirring tank.

4. The production apparatus of an aerogel thermal insulation material for a building according to claim 1, wherein: The upper and lower molds are fixed with lugs opposite to each other on the front and rear sides.

5. An apparatus for producing aerogel thermal insulation for construction according to claim 4, characterized in that: The upper and lower molds are fixed with a plurality of equally spaced partitions opposite to each other.

6. An apparatus for producing aerogel thermal insulation for construction according to claim 5, characterized in that: The upper and lower molds are fixed with a plurality of equally spaced partitions opposite to each other.

7. The production apparatus of an aerogel thermal insulation material for a building according to claim 1, wherein: The upper and lower molds are fixed with a plurality of equally spaced partitions opposite to each other.

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