Production process of back bolt type UHPC artificial stone plate coated with aerogel

Abstract

According to the production process of the back bolt type UHPC artificial stone plate coated with the aerogel, the back bolt type UHPC artificial stone plate is included, a plurality of nuts are embedded in the back of the UHPC artificial stone plate, the back of the back bolt type UHPC artificial stone plate is coated with the aerogel layer, and the aerogel layer is provided with through holes leading to nut screw openings. The back of the plate is industrially coated with aerogel, so that the back of the plate has the advantages of an aerogel heat preservation layer with efficient heat preservation and insulation and an extremely low heat conductivity coefficient, and the effective realization of the heat preservation and insulation function can be completely ensured even if the plate is extremely thin; and various defects of thick thermal insulation materials can also be overcome by the extremely thin aerogel.

Description

Technical Field

[0001] The present invention relates to the field of building decoration energy conservation, and in particular to a production process of a back-bolted UHPC artificial stone plate coated with aerogel. Background Art

[0002] Efficient thermal insulation is the basis for realizing building energy conservation and carbon reduction. Existing widely used organic and inorganic thermal insulation materials such as rock wool, extruded plastic, and calcium silicate generally have defects such as large thermal conductivity, poor fire resistance, and poor water resistance. Under the trend of increasing requirements for building energy conservation and carbon reduction, when using these thermal insulation materials, the requirements for the thickness of the thermal insulation materials are also getting larger. A number of patents for cement-based artificial stones with back bolts that have been disclosed all use back bolts combined with screw hanging bars or anchor fittings, and use the clamping principle to clamp the above-mentioned various solid thermal insulation materials, so as to achieve the decorative and thermal insulation functions of various buildings. However, the greater the thickness of the thermal insulation material, the farther the distance between the cement-based artificial stone plate and the building structure will be, and the farther the hanging distance generated by the cement-based artificial stone plate connected by bolts or screws will be. The greater the hanging distance, the greater the potential safety hazards of the plate. At the same time, problems such as delamination and panel popping are likely to occur in the plates and thermal insulation materials using the clamping principle.

[0003] Aerogel is known as one of the ten most amazing materials. It has an extremely low thermal conductivity and excellent fire and water resistance. Therefore, aerogel can achieve very efficient thermal insulation with an extremely thin thickness. Due to its excellent performance, aerogel is now listed by the country as a material to be vigorously promoted. The aerogel currently used in building thermal insulation is mainly of the coating type. The construction process is to first apply a primer coat on the wall, then apply an aerogel thermal insulation coat on the primer coat, and finally apply a decorative coat such as stone paint or paint on the surface of the thermal insulation coat according to needs. This coating process can only be implemented on-site, and there will be defects such as low construction efficiency and difficult quality assurance; the surface decorative coat will have defects such as easy fading, easy peeling off, and easy water seepage; the occurrence of these defects will lead to the rapid deterioration of the decorative appearance of the implemented aerogel thermal insulation and decoration system, the rapid shortening of the service life of aerogel, and even major safety problems such as falling off in severe cases. At the same time, the decorative paint mainly composed of chemical materials violates the concept of green building materials, and the mainly manual implementation on-site also violates the development requirements of prefabrication. Therefore, solving the more efficient, durable, green and energy-saving implementation of aerogel in buildings is an urgent problem to be solved. Summary of the Invention

[0004] The purpose of the present invention is to provide a production process of a back-bolted UHPC artificial stone plate coated with aerogel to solve the problems raised in the above background art.

[0005] The technical solution adopted by the present invention is: a production process of a back-bolted UHPC artificial stone plate coated with aerogel, including the following process steps: A. Plate preparation: On the surface of the UHPC artificial stone plate with multiple nuts embedded in the back, form a finish through at least one of the methods of peeling, wrapping, and printing, so as to obtain a back-bolted UHPC artificial stone plate with a finish; B. Aerogel layer preparation: Modulate the aerogel powder particles into a slurry-like state for standby; C. Coating and drying: Temporarily seal the nuts on the back of the back-bolted UHPC artificial stone plate, then coat the slurry-like aerogel layer on the back of the back-bolted UHPC artificial stone plate, and finally dry the slurry-like aerogel layer through a drying device to obtain a back-bolted UHPC artificial stone plate coated with an aerogel layer.

[0006] Preferably, in step A, after obtaining the back-bolted UHPC artificial stone plate, coat a primer layer on the back of the back-bolted UHPC artificial stone plate.

[0007] Preferably, in step C, after the aerogel layer is dried, continue to coat a protective layer on its surface.

[0008] Preferably, in step A, a mesh is embedded in the back-bolted UHPC artificial stone plate, and the nut is connected to the mesh.

[0009] Preferably, in step C, after removing the sealant for sealing the nut, the aerogel layer is provided with a through hole leading to the nut thread opening. A hanging screw is inserted through the through hole. The front end of the hanging screw passes through the through hole and is screwed to the nut, and the tail end of the hanging screw is connected to a metal connecting piece.

[0010] Preferably, a metal connecting piece is inserted through the hanging screw, and the metal connecting piece is one or a combination of an L-shaped metal connecting piece and a straight-strip metal connecting piece.

[0011] Preferably, in step C, after removing the sealant for sealing the nut, the aerogel layer is provided with a through hole leading to the nut thread opening. An anchoring connecting rod is inserted through the through hole. The anchoring connecting rod passes through the through hole and is screwed to the nut. An anchoring portion is provided on the main body of the anchoring connecting rod, and the anchoring portion protrudes from the surface of the aerogel layer.

[0012] The present invention uses UHPC artificial stone plates with excellent performance as decorative panels. By industrially coating aerogel on the back of the plates, an aerogel thermal insulation layer with high-efficiency thermal insulation is formed on the back of the plates. The advantage of aerogel with an extremely low thermal conductivity can fully ensure the effective realization of the thermal insulation function even in an extremely thin case. At the same time, the applied primer can make the aerogel thermal insulation layer adhere more closely to the back of the plates. After the extremely thin and excellent-performance aerogel is coated on the back of the UHPC artificial stone plates, various connecting pieces with back bolts screwed on the back can fix the plates tightly on various building structures. Therefore, it can effectively solve various safety hazards caused by the existing cement-based artificial stone plates combined with various thermal insulation materials with large thermal conductivities, such as large thickness, long suspension distance, and various problems of easy delamination and bouncing. After the excellent fire resistance of aerogel is coated on the back of the UHPC artificial stone plates, it can also improve the fire performance of the plates; the excellent waterproof performance can well prevent various pollutants from eroding the plates; thus, various safety performances of the artificial stone plates can be further improved.

[0013] The surface of the UHPC artificial stone plates of the present invention can form various decorative effects such as stone and metal through methods such as peeling, wrapping, and printing. The finish formed by the UHPC artificial stone plates with excellent performance through the peeling principle can fully reach the service life of natural stone; using the UHPC plates as the base plates to wrap metal plates can have a lower cost, better safety and durability than single-metal plates and honeycomb plates. Therefore, it can effectively solve various defects such as easy fading, easy peeling off, and easy water seepage that inevitably exist in the stone paint and coatings on the finish when the existing aerogel is applied to building walls due to thin-shell coating. At the same time, the UHPC artificial stone plates with back bolts can achieve various fully assembled installations through the principle of screw connection and interconnection, thus solving various defects that can only be implemented manually on-site in the existing building for aerogel thermal insulation decoration.

[0014] The UHPC artificial stone plates of the present invention can fully meet the requirements of three-star green building materials. Therefore, it can solve the green problems of coatings and stone paints; after the excellent-performance UHPC artificial stone plates are coated with aerogel on the back, the plates used as the finish can effectively block the erosion and damage of harmful substances such as ultraviolet rays, rain, and snow to the aerogel coating. Therefore, it can effectively extend the service life of aerogel. At the same time, it can further block the erosion and damage of these harmful substances to the building structure, thus improving the service life of the building main body. These advantages cannot be achieved by the existing aerogel coating process. Therefore, the present invention is an innovative technology that benefits the country and the people. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the present invention with a primer added; Figure 3 Another structural schematic diagram of the present invention; Figure 4 Yet another structural schematic diagram of the present invention; Figure 5 Structural schematic diagram of the present invention with an anchor connecting rod added.

[0016] 1 - Back - bolt type UHPC artificial stone plate; 2 - Nut; 3 - Aerogel layer; 4 - Through - hole; 5 - Primer coat; 6 - Protective layer; 7 - Mesh; 8 - Hanging screw; 9 - Straight - strip metal connecting piece; 10 - Anchor connecting rod; 11 - Anchoring part; 12 - L - shaped metal connecting piece; 13 - "n" - shaped metal clip; 15 - Building structure; 16 - Expansion bolt. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] Embodiment 1: As Figure 1 shown, a production process of a back - bolt type UHPC artificial stone plate coated with aerogel includes the following process steps: A. Plate preparation: On the surface of the UHPC artificial stone plate with multiple nuts 2 buried in the back, form a finish by at least one of the methods of peeling, wrapping, and printing, so as to obtain a back - bolt type UHPC artificial stone plate 1 with a finish; B. Aerogel layer 3 preparation: Modulate aerogel powder particles into a slurry for standby; C. Coating and drying: Temporarily seal the nuts 2 on the back of the back - bolt type UHPC artificial stone plate 1, and then coat the slurry - like aerogel layer 3 on the back of the back - bolt type UHPC artificial stone plate 1. The coating method is roller coating or spraying, and then dry the slurry - like aerogel layer 3 through a drying device to finally obtain a back - bolt type UHPC artificial stone plate coated with an aerogel layer.

[0019] Embodiment 2: As Figure 2 shown, a production process of a back - bolt type UHPC artificial stone plate coated with aerogel includes the following process steps: A. Plate preparation: On the surface of the UHPC artificial stone plate with multiple nuts 2 buried in the back, form a finish by at least one of the methods of peeling, wrapping, and printing, so as to obtain a back - bolt type UHPC artificial stone plate 1 with a finish; B. Coating the primer layer 5: After obtaining the back - anchored UHPC artificial stone slab 1, coat the primer layer 5 on the back of the back - anchored UHPC artificial stone slab 1. The primer layer 5 can increase the adhesion between the aerogel and the back - anchored UHPC artificial stone slab; C. Preparation of the aerogel layer 3: Modulate the aerogel powder particles into a slurry for standby; D. Coating and drying: Temporarily seal the nuts 2 on the back of the back - anchored UHPC artificial stone slab 1, and then coat the slurry - like aerogel layer 3 on the back of the back - anchored UHPC artificial stone slab 1. The coating method is troweling, and then dry the slurry - like aerogel layer 3 through a drying device. Finally, obtain the back - anchored UHPC artificial stone slab coated with the aerogel layer.

[0020] Example 3: As Figure 3 shown, a production process of a back - anchored UHPC artificial stone slab coated with aerogel includes the following process steps: A. Slab preparation: On the surface of the UHPC artificial stone slab with multiple nuts 2 buried in the back, form a finish through at least one of the methods of peeling, wrapping, and printing, so as to obtain the back - anchored UHPC artificial stone slab 1 with a finish. A mesh 7 is buried in the back - anchored UHPC artificial stone slab 1, and the nut 2 is connected to the mesh 7; B. Coating the primer layer: After obtaining the back - anchored UHPC artificial stone slab 1, coat the primer layer 5 on the back of the back - anchored UHPC artificial stone slab 1. The primer layer 5 can increase the adhesion between the aerogel and the back - anchored UHPC artificial stone slab; C. Preparation of the aerogel layer 3: Modulate the aerogel powder particles into a slurry for standby; D. Coating and drying: Temporarily seal the nuts 2 on the back of the back - anchored UHPC artificial stone slab 1, and then coat the slurry - like aerogel layer 3 on the back of the back - anchored UHPC artificial stone slab 1. Finally, dry the slurry - like aerogel layer 3 through a drying device. After drying, continue to coat a protective layer 6 on its surface. The protective layer 6 can block various pollutants; E. Finished board: After obtaining the back-bolted UHPC artificial stone board coated with the aerogel layer, remove the seal of the closing nut 2. The aerogel layer 3 is provided with a through hole 4 leading to the screw thread of the nut 2. A hanging screw 8 is inserted through the through hole 4. The front end of the hanging screw 8 passes through the through hole 4 and is screwed to the nut 2. The tail end of the hanging screw 8 is connected to a metal connector. The metal connector is a straight strip-shaped metal connecting piece 9. The back-bolted UHPC artificial stone board coated with the aerogel layer 3 is fixed on the building structure 15 by passing an expansion bolt 16 through the hanging through hole of the straight strip-shaped metal connecting piece 9. A fully screwed interconnection and interlocking connection structure can be formed among the nut 2, the straight strip-shaped metal connecting piece 9 screwed and fixed inside the nut, and the expansion bolt 16. The powerful locking force generated by the connection structure can, therefore, securely lock and fix the back-bolted UHPC artificial stone board coated with aerogel on the building structure 15.

[0021] Example 4: As Figure 4 shown, a production process of a back-bolted UHPC artificial stone board coated with aerogel includes the following process steps: A. Board preparation: On the surface of the UHPC artificial stone board with multiple nuts 2 buried in the back, form a finish by at least one of the methods of peeling, wrapping, and printing, so as to obtain the back-bolted UHPC artificial stone board 1 with a finish. A mesh 7 is buried in the back-bolted UHPC artificial stone board 1, and the nut 2 is connected to the mesh 7; B. Coating the primer layer: After obtaining the back-bolted UHPC artificial stone board 1, coat the primer layer 5 on the back of the back-bolted UHPC artificial stone board 1. The primer layer 5 can increase the adhesion between the aerogel and the back-bolted UHPC artificial stone board; C. Preparation of the aerogel layer 3: Modulate the aerogel powder particles into a slurry for standby; D. Coating and drying: Temporarily seal the nut 2 on the back of the back-bolted UHPC artificial stone board 1, then coat the slurry-like aerogel layer 3 on the back of the back-bolted UHPC artificial stone board 1, and finally dry the slurry-like aerogel layer 3 through a drying device. After drying, continue to coat a protective layer 6 on its surface. The protective layer 6 can block various pollutants; E. Finished sheet: After obtaining the back-bolted UHPC artificial stone sheet coated with aerogel, remove the sealant of the closing nut 2. The aerogel layer 3 is provided with a through hole 4 leading to the screw thread of the nut 2. A hanging screw 8 is inserted through the through hole 4, and a metal connecting piece is inserted through the hanging screw 8. The metal connecting piece is one or a combination of an L-shaped metal connecting piece 12 and a straight strip-shaped metal connecting piece. One end of the L-shaped metal connecting piece 12 is fixedly connected to the back-bolted UHPC artificial stone sheet 1 through the hanging screw 8, and the other end of the L-shaped metal connecting piece 12 is fixedly connected to the "n"-shaped metal clip 13. Fix the "n"-shaped metal clip 13 firmly on the square rectangular tube through the fastening screw. The L-shaped metal connecting piece 12 and the "n"-shaped metal clip 13 can adjust the up-and-down height and the front-and-back flatness. Tighten the nut to complete the assembled installation.

[0022] Example 5: As Figure 5 shown, a production process of a back-bolted UHPC artificial stone sheet coated with aerogel includes the following process steps: A. Sheet preparation: On the surface of the UHPC artificial stone sheet with multiple nuts 2 buried in the back, form a finish through at least one of the methods of peeling, wrapping, and printing, so as to obtain the back-bolted UHPC artificial stone sheet 1 with a finish. A mesh 7 is buried in the back-bolted UHPC artificial stone sheet 1, and the nut 2 is connected to the mesh 7; B. Coating the primer layer: After obtaining the back-bolted UHPC artificial stone sheet 1, coat the primer layer 5 on the back of the back-bolted UHPC artificial stone sheet 1. The primer layer 5 can increase the adhesion between the aerogel and the back-bolted UHPC artificial stone sheet; C. Preparation of the aerogel layer 3: Modulate the aerogel powder particles into a slurry for standby; D. Coating and drying: Temporarily seal the nut 2 on the back of the back-bolted UHPC artificial stone sheet 1, then coat the slurry-like aerogel layer 3 on the back of the back-bolted UHPC artificial stone sheet 1, and finally dry the slurry-like aerogel layer 3 through a drying device. After drying, continue to coat a protective layer 6 on its surface. The protective layer 6 can block various pollutants; E. Finished sheet: After obtaining the back-bolt type UHPC artificial stone sheet coated with aerogel, when the seal of the closing nut 2 is removed, the aerogel layer 3 is provided with a through hole 4 leading to the screw opening of the nut 2. An anchoring connecting rod 10 is inserted through the through hole 4 and is screwed to the nut 2. An anchoring portion 11 is provided on the main body of the anchoring connecting rod 10. The anchoring portion 11 is any geometric shape larger than the cross-sectional area of the anchoring connecting rod 10, and the anchoring portion 11 protrudes on the surface of the aerogel layer 3. It can be directly made into a reverse-cast precast member. When making a single-sided reverse-cast precast member, after laying it in the mold of the precast member, directly lay the metal skeleton and pour concrete. The solidified concrete will completely wrap the anchoring portion 11 at the end of the anchoring connecting rod 10. The strong wrapping force of the reinforced concrete structure and the setting larger than the anchoring portion 11 can enable the anchoring connecting rod 10 to generate a great connecting force. Therefore, the sheet completely interconnected with the anchoring connecting rod will be connected in series with the concrete structure to form a whole. We can also make precast members such as beams, columns, and windows with multi-sided decoration. The sheets coated with the bottom coating 5, aerogel 3, and protective layer 6 are directly laid on the bottom and side of the mold or are screwed and connected in series through long steel bars and the anchoring connecting rod and then laid, so as to easily complete the multi-sided reverse-cast decoration and multi-sided heat insulation and sound insulation functions; we can also perform the direct-cast process on the casting surface of the precast member. The specific method is: on the casting surface of the precast member, we directly lay the back-bolt type UHPC artificial stone sheet 1 coated with aerogel 3 or perform screw connection in series on the back or use the method of a facing suction cup to directly lay the back-bolt type UHPC artificial stone sheet 1 on the surface of the cast concrete. After the concrete solidifies, it will completely bite the anchoring connecting rod 10 extending in the reinforced concrete, so that we have achieved the all-round decoration, heat insulation, and sound insulation functions of the precast member; the back-bolt type UHPC artificial stone sheet coated with aerogel can also replace various existing templates such as steel, aluminum, and wood. According to our needs, by setting different anchoring portions, when used as a formwork to enclose the steel bar skeleton, it can be interconnected with the steel bar skeleton, or interconnected with the opposite sheet, or directly suspended inside or outside the steel bar skeleton, and after being completely fixed from the periphery by the same reinforcement method as the existing formwork, the expansion force generated by pouring concrete will be borne and blocked by the peripheral reinforcement members. After the concrete is poured, it will completely cover the anchoring portion 11 at one end of the anchoring connecting rod 10 extending in the steel bar skeleton. After the poured concrete completely solidifies, it will completely wrap the anchoring portion. Therefore, it can enable the anchoring portion set larger than the cross-section of the anchoring connecting rod 10 to generate a great pulling force, and at the same time, it will surely enable the sheet completely screwed and interconnected with the anchoring connecting rod 10 to completely become an interconnected whole with the cast-in-place reinforced concrete structure.

[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A production process of a coated aerogel back-bolted UHPC artificial stone plate, characterized in that: It includes the following technological steps: A. Sheet preparation: On the surface of the UHPC artificial stone sheet with multiple nuts (2) buried in the back, form a finish by at least one of the methods of peeling, wrapping, and printing, so as to obtain a back-bolted UHPC artificial stone sheet (1) with a finish; B. Aerogel layer (3) preparation: Modulate the aerogel powder particles into a slurry for standby; C. Coating and drying: Temporarily seal the multiple nuts (2) on the back of the back-bolted UHPC artificial stone sheet (1), then coat the slurry-like aerogel layer (3) on the back of the back-bolted UHPC artificial stone sheet (1), and finally dry the slurry-like aerogel layer (3) through a drying device to obtain a back-bolted UHPC artificial stone sheet coated with an aerogel layer.

2. The production process of a back-anchored UHPC artificial stone slab coated with aerogel according to claim 1, characterized in that: In the step A, after obtaining the back-bolted UHPC artificial stone sheet (1), coat a primer layer (5) on the back of the back-bolted UHPC artificial stone sheet (1).

3. The production process of a back-bolted UHPC artificial stone plate coated with aerogel according to claim 1, characterized in that: In the step C, after the aerogel layer (3) is dried, continue to coat a protective layer (6) on its surface.

4. The production process of a back-bolted UHPC artificial stone slab coated with aerogel according to claim 1, characterized in that: In the step A, a mesh (7) is buried in the back-bolted UHPC artificial stone sheet (1), and the nut (2) is connected to the mesh (7).

5. The production process of a back-bolted UHPC artificial stone slab coated with aerogel according to claim 1, characterized in that: In the step C, after removing the sealant of the closed nut (2), the aerogel layer (3) is provided with a through hole (4) leading to the screw opening of the nut (2), a hanging screw (8) is inserted through the through hole (4), the front end of the hanging screw (8) passes through the through hole (4) and is screwed to the nut (2), and the tail end of the hanging screw (8) is connected to a metal connector.

6. The production process of a back - bolted UHPC artificial stone slab coated with aerogel according to claim 5, characterized in that: A metal connector is inserted through the hanging screw (8), and the metal connector is one or a combination of an L-shaped metal connecting piece (12) and a straight-strip metal connecting piece (9).

7. The production process of a back-bolted UHPC artificial stone slab coated with aerogel according to claim 1, characterized in that: In the step C, after removing the sealant of the closed nut (2), the aerogel layer (3) is provided with a through hole (4) leading to the screw opening of the nut (2), an anchoring connecting rod (10) is inserted through the through hole (4), the anchoring connecting rod (10) passes through the through hole (4) and is screwed to the nut (2), an anchoring part (11) is provided on the main body of the anchoring connecting rod (10), and the anchoring part (11) protrudes on the surface of the aerogel layer (3).

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