Fabricated hard fireproof insulation board and preparation method thereof

Abstract

The invention discloses an assembly type hard fireproof insulation board and a preparation method thereof, belongs to the technical field of ship materials, and aims to solve the problems that an existing insulation board is limited by space on a ship, the site is insufficient to meet the mold pouring requirement, and meanwhile, the insulation board needs to be produced and is convenient to carry out insulation integrated installation on the ship. According to the invention, through the matching arrangement of the modular insulation board and the side frame, the modular insulation board is of an assembly type, the right-angle frame is arranged at the side end, and the right-angle frame is matched with the modular insulation board, so that the side end of the assembled insulation board is kept in sealing performance, and the stability is ensured through screw connection; the glass fiber composite cloth backing avoids reduction of heat preservation performance, mildewing or corrosion of a base material after the core material in the frame piece absorbs moisture, the decorative plate is used for improving attractiveness, core material treatment, heat preservation plate filling, heat preservation plate assembling and surface treatment are arranged, core material treatment and heat preservation plate filling can be completed in advance, finally assembling and surface treatment are completed on a ship, and the service life of the ship is prolonged. The mounting effect is ensured.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding materials technology, and in particular to a prefabricated rigid fireproof insulation board and its preparation method. Background Technology

[0002] The core function of marine fireproof insulation panels is to ensure navigation safety and maintain a stable cabin environment. They are an indispensable functional material for ships. The navigation environment of ships is complex and needs to cope with extreme conditions such as high temperature, low temperature and high humidity. Fireproof insulation panels can effectively isolate the exchange of heat between the inside and outside, ensuring the comfort of personnel and the normal operation of equipment.

[0003] The authorized announcement number CN118007816B describes a structural fireproof insulation board and its manufacturing process, comprising two isolation base layers, two foamed concrete fireproof insulation layers, and an X-shaped suspended layer. The inner sides of the two isolation base layers are bonded to a foamed concrete fireproof insulation layer using adhesive, and the two foamed concrete fireproof insulation layers are bonded to both sides of the X-shaped suspended layer using adhesive. This structural fireproof insulation board and its manufacturing process achieve the goal of using concrete as a fireproof material while incorporating foam into the concrete and combining multiple layers of reinforcement. The strong interlayer significantly improves the thermal insulation and compressive strength of the fireproof insulation board, achieving both excellent fire resistance and good thermal insulation and compressive strength. This greatly enhances the thermal insulation and compressive strength of the fireproof insulation board, which is very beneficial for its widespread use. However, due to space limitations on ships, the site is insufficient to meet the mold casting requirements. At the same time, cement slurry leakage and chemical additive emissions from concrete are subject to marine environmental protection regulations. Therefore, it is necessary to manufacture the insulation board in advance so that it can be installed in an integrated manner on ships.

[0004] To address the aforementioned problems, a prefabricated rigid fireproof insulation board and its preparation method are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated rigid fireproof insulation board and its preparation method, which solves the problems in the prior art where existing insulation boards are limited by space on board, the site is insufficient to meet the mold casting requirements, and the leakage of cement slurry and chemical additives in concrete are subject to marine environmental protection regulations. Therefore, it is necessary to produce the insulation board in advance so that it can be installed in an integrated manner on board the ship.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated rigid fireproof insulation board and its preparation method, comprising a modular insulation board, wherein multiple sets of modular insulation boards are connected side by side screws, side frames are threaded to both sides of the modular insulation board, the side frames are screwed to the side walls, and a sealing mechanism for encapsulation is screwed to one side of the modular insulation board, wherein the side frame includes a right-angle frame and a first insert fixed to one side of the right-angle frame, the modular insulation board includes a frame member corresponding to the first insert, a second insert is stacked on the side end of the frame member corresponding to the side end of the first insert, screw holes are opened around the frame member, and the sealing mechanism includes a glass fiber composite cloth backing and a decorative panel screwed to the upper end of the frame member.

[0007] Furthermore, a slot for inserting a second bracket is provided on one side of the right-angle bracket, and the first bracket is connected to the screw hole with a screw in the middle.

[0008] Furthermore, the modular insulation board also includes an aluminum foil film that is movably placed inside the frame component, and a rock wool board is attached to one side of the aluminum foil film.

[0009] Furthermore, a modified phenolic foam board is adhered to one side of the rock wool board, and a galvanized steel wire mesh is adhered and fixed to one side of the modified phenolic foam board.

[0010] Furthermore, the aluminum foil film, the rock wool board, the modified phenolic foam board, and the galvanized steel wire mesh are bonded together with an adhesive.

[0011] Another technical solution proposed by this invention: A method for preparing an assembled rigid fireproof insulation board, comprising the following steps: S1: Core material treatment: core material pretreatment, composite molding, curing and cutting; S2: Insulation board filling: After the core material is cured, it is placed inside the frame component. The sides are sealed with sealant during filling, and aluminum foil tape is pasted on the four corners of the frame component to enhance the sealing and heat reflection effect. S3: Insulation panel assembly: Achieve full-surface assembly of side frames and modular insulation panels on the ship; S4: Surface treatment: After the backing is cut, it is waterproofed, and finally the decorative panel is positioned and fixed.

[0012] Core material processing includes the following steps: S11: Core material pretreatment: Marine-grade rock wool, modified phenolic foam, adhesive and galvanized steel wire are selected.

[0013] S12: Composite molding: After the core material is cut, it is bonded together and finally embedded with galvanized steel mesh to improve the overall bending strength and prevent the core material from breaking due to ship vibration.

[0014] S13: Curing and Cutting: The composite board is sent into the curing room to ensure that the adhesive is completely cured. Then the edges of the cured board are trimmed to remove burrs.

[0015] Furthermore, the composite molding includes the following steps: S121: Core material cutting: Cut the core material using a CNC cutting machine according to the standard module size to avoid gaps during the composite process; S122: Adhesive bonding: The galvanized steel sheet and the core material are bonded together using a full-adhesion adhesive coating method and placed in a hydraulic laminating machine for pressure to ensure a tight bond between the layers without any voids.

[0016] Furthermore, the assembly of the insulation board includes the following steps: S31: Hull cleaning: Clean the steel structure surface of the area to be insulated on the hull, remove rust, oil, dust and other impurities, and ensure that the surface is flat and dry; S32: Side frame positioning and fixing: According to the baseline, attach the side frame to the side end of the base layer, adjust the position to ensure that it is aligned with the baseline, and fix the side frame on one side. S33: Assembly and insertion; to achieve staggered joints between the side frame and the modular insulation board, and to complete the assembly by superimposing the second inserts in the adjacent modular insulation boards and by fixing the second inserts in the side frame and the modular insulation board with screws after superimposing the first inserts.

[0017] Furthermore, the surface treatment includes the following steps: S41: Backing cutting: Cut the fiberglass composite cloth according to the dimensions of the installation area of ​​the insulation board; S42: Waterproofing treatment: The overlap width of adjacent composite fabrics is greater than five centimeters. Apply special waterproof adhesive to the overlap and then press it with a pressure roller to ensure that the adhesive layer penetrates evenly and forms a sealing strip. S43: Decorative panel positioning: The decorative panels are fixed with screws. A special decorative strip is embedded at the joint between the decorative panels to cover the gaps and enhance the structural strength of the joints. The gap between the decorative strip and the decorative panel is filled with neutral sealant to ensure overall aesthetics and eliminate the risk of water leakage.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention provides an assembled rigid fireproof insulation board and its preparation method. Through the combination of modular insulation boards and side frames, the modular insulation boards are assembled, and the right-angle frames are set at the side ends. The combination with the modular insulation boards ensures that the side ends of the insulation boards are sealed after assembly. The first and second inserts are stacked and connected by screws to ensure the stability of the connection. This solves the problem that existing insulation boards are limited by space on the ship, and the site is insufficient to meet the mold casting requirements. The insulation boards need to be produced in advance to facilitate integrated insulation installation on the ship.

[0019] 2. This invention provides an assembled rigid fireproof insulation board and its preparation method. Through the setting of the encapsulation mechanism, screws are built into the screw holes of the modular insulation board to fix the fiberglass composite cloth backing and decorative panel. The fiberglass composite cloth backing solves the problem of insulation material failure due to moisture. Due to the high humidity in ship cabins, condensation is easily generated inside the frame components due to temperature differences. The fiberglass composite cloth backing can allow water vapor to be discharged naturally through its microporous structure, avoiding the decrease in insulation performance, mold growth, or corrosion of the substrate after the core material inside the frame components absorbs moisture. The decorative panel is used to improve aesthetics. This solves the problem of preventing moisture absorption while ensuring the insulation effect of existing insulation boards.

[0020] 3. The present invention provides a prefabricated rigid fireproof insulation board and its preparation method. Through the setting of core material treatment, insulation board filling, insulation board assembly and surface treatment, the core material treatment and insulation board filling can be completed in advance, and the final assembly and surface treatment are completed on the ship to ensure the installation effect. This solves the problem that the existing insulation boards are limited by the space on the ship and the site is not enough to meet the mold casting requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall assembly of the present invention; Figure 2 This is a schematic diagram of the side frame and modular insulation board of the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the packaging mechanism of the present invention; Figure 4 This is a schematic diagram showing the disassembled structure of the side frame and modular insulation board of the present invention; Figure 5 This is a schematic diagram of the internal core material structure of the modular insulation board of the present invention; Figure 6 For the present invention Figure 5 A magnified structural diagram at point A; Figure 7 This is a schematic diagram of the overall assembly process of the present invention.

[0022] In the diagram: 1. Side frame; 11. Right-angle frame; 12. First insert; 13. Slot; 2. Modular insulation board; 21. Frame component; 211. Second insert; 212. Screw hole; 22. Aluminum foil film; 23. Adhesive; 24. Rock wool board; 25. Modified phenolic foam board; 26. Galvanized steel wire mesh; 3. Packaging mechanism; 31. Fiberglass composite cloth backing; 32. Decorative panel. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] To address the limitations of existing insulation boards on ships, such as insufficient space for mold casting, and the constraints of marine environmental regulations regarding cement slurry leakage and chemical additive emissions, a technical challenge is needed: insulation boards that can be manufactured in-house for integrated onboard insulation installation. Figures 1-7 As shown, the following preferred technical solutions are provided: A prefabricated rigid fireproof insulation board includes modular insulation boards 2, which are connected side by side screws in multiple sets. Side frames 1 are threaded to both sides of the modular insulation boards 2, and the side frames 1 are screwed to the side walls. A sealing mechanism 3 for sealing is screwed to one side of the modular insulation boards 2. The side frames 1 include right-angle frames 11 and a first insert 12 fixed to one side of the right-angle frames 11. The modular insulation boards 2 include frame members 21 that are inserted into the first insert 12. A second insert 211 is stacked on the side of the frame members 21 and the first insert 12. Screw holes 212 are opened around the frame members 21. The sealing mechanism 3 includes a glass fiber composite cloth backing 31 and a decorative panel 32 screwed to the upper end of the frame members 21.

[0025] Specifically, the modular insulation board 2 is assembled, and the right-angle frame 11 is set on the side. It is matched with the modular insulation board 2 to keep the side of the insulation board sealed after assembly. The first bracket 12 and the second bracket 211 are stacked and connected by screws to ensure the stability of the connection. The screw hole 212 has screws built in to fix the fiberglass composite cloth backing 31 and the decorative panel 32. The fiberglass composite cloth backing 31 solves the problem of insulation material failure due to moisture. Due to the high humidity in the ship cabin, condensation is easily generated inside the frame component 21 due to temperature difference. The fiberglass composite cloth backing 31 can allow water vapor to be discharged naturally through the microporous structure, avoiding the decrease in insulation performance, mold or corrosion of the substrate after the core material inside the frame component 21 absorbs moisture. The decorative panel 32 is used to improve the aesthetics.

[0026] A slot 13 for inserting a second insert 211 is provided on one side of the right-angle bracket 11. The first insert 12 and the screw hole 212 are connected by a screw in the middle. The slot 13 is used for insertion and positioning to achieve the side-by-side fixing of the insulation board. The setting of the screw after the first insert 12 and the screw hole 212 are stacked can ensure the stability of the modular connection of the insulation board. The side-by-side positioning of the frame component 21 is achieved by the insertion and positioning of the frame component 21 by the right-angle brackets 11 on both sides. The overall assembly method is the screw connection after staggered overlap.

[0027] The modular insulation board 2 also includes an aluminum foil film 22 that is movably placed inside the frame component 21. A rock wool board 24 is attached to one side of the aluminum foil film 22. The aluminum foil film 22 can reflect more than 80% of infrared radiation heat back, reducing heat transfer through radiation. It is especially suitable for the insulation needs of ship engine rooms and near high-temperature equipment. The rock wool board 24 is mainly composed of inorganic minerals such as basalt and diabase. It is a non-combustible material and will not release toxic gases such as carbon monoxide and cyanide when burning. It only produces a small amount of harmless inert smoke, which can significantly reduce the risk of poisoning of people in a fire.

[0028] A modified phenolic foam board 25 is attached to one side of the rock wool board 24, and a galvanized steel wire mesh 26 is attached and fixed to one side of the modified phenolic foam board 25. The modified phenolic foam board 25 is lightweight and heat-insulating, provides basic fire resistance, and can balance the ship's requirements for weight reduction and heat insulation. It has a low thermal conductivity and its heat insulation performance is better than that of rock wool and glass wool, which can significantly reduce the thickness of the insulation layer. It works even better when used in combination with rock wool. The galvanized steel wire mesh 26 makes up for the shortcomings of the modified phenolic foam in terms of brittleness and weak vibration resistance, and provides structural support for the insulation board. It can protect the internal foam core material from damage when ship equipment is moved or personnel walk and collide.

[0029] Aluminum foil film 22, rock wool board 24, modified phenolic foam board 25 and galvanized steel wire mesh 26 are bonded together by adhesive 23. The adhesive 23 is a marine-grade two-component adhesive with high tensile bond strength and resistance to seawater immersion.

[0030] To further explain the above embodiments, the present invention also provides an implementation method: a method for preparing a prefabricated rigid fireproof insulation board, comprising the following steps: Step 1: Core Material Treatment: Core material pretreatment, composite molding, curing, and cutting; Step 2: Insulation board filling: After the core material is cured, it is placed inside the frame component 21. The sides are sealed with sealant during filling, and aluminum foil tape is pasted on the four corners of the frame component 21 to enhance the sealing and heat reflection effect. Step 3: Insulation panel assembly: Achieve full assembly of side frame 1 and modular insulation panel 2 on the ship; Step 4: Surface treatment: After the backing is cut, it is waterproofed, and finally the decorative panel 32 is positioned and fixed.

[0031] Core material processing includes the following steps: Step 1: Core material pretreatment: Marine-grade rock wool, modified phenolic foam, adhesive 23 and galvanized steel wire are selected. Marine-grade rock wool ensures a balance between thermal insulation and fire resistance. Rock wool needs to be pretreated in a drying room to prevent moisture absorption and mold growth after subsequent assembly. The surface of the galvanized steel plate is pretreated to remove oil stains. Adhesive 23 is a marine-grade two-component adhesive.

[0032] Step 2: Composite molding: After the core material is cut, it is bonded together and finally embedded with galvanized steel mesh to improve the overall bending strength and prevent the core material from breaking due to ship vibration.

[0033] Step 3: Curing and Cutting: Send the composite board into the curing room to ensure that the adhesive 23 is completely cured, and then trim the edges of the cured board to remove burrs.

[0034] Composite molding includes the following steps: Step 1: Core material cutting: Cut the core material using a CNC cutting machine according to the standard module dimensions to avoid gaps during lamination; Step 2: Bonding and lamination: Using a full-adhesion adhesive application method, the galvanized steel sheet and the core material are bonded together and placed in a hydraulic laminating machine for pressure to ensure a tight bond between the layers without any voids.

[0035] The assembly of insulation boards includes the following steps: Step 1: Hull cleaning: Clean the steel structure surface of the area to be insulated on the hull, removing rust, oil, dust and other impurities, and ensure that the surface is flat and dry; Step 2: Positioning and fixing side frame 1: According to the baseline, attach side frame 1 to the side end of the base layer, adjust the position to ensure that it is aligned with the baseline, and fix side frame 1 on one side. Step 3: Assembly and connection; achieve staggered overlap between side frame 1 and modular insulation board 2, and complete the assembly by superimposing the second insert 211 in adjacent modular insulation board 2, and by screw fixing after the second insert 211 in side frame 1 and modular insulation board 2 are superimposed with the first insert 12.

[0036] Surface treatment includes the following steps: Step 1: Backing Cutting: Cut the fiberglass composite fabric according to the dimensions of the installation area of ​​the insulation board; Step 2: Waterproofing treatment: The overlap width of adjacent composite fabrics is greater than 5 cm. Apply special waterproof adhesive to the overlap and then press it with a pressure roller to ensure that the adhesive layer penetrates evenly and forms a sealing strip. Step 3: Positioning of decorative panel 32: Fix the decorative panel 32 with screws. Insert a special decorative strip into the joint between the decorative panels 32 to cover the gap and enhance the structural strength of the joint. Fill the gap between the decorative strip and the decorative panel 32 with neutral sealant to ensure overall aesthetics and eliminate the risk of water leakage.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated rigid fireproof thermal insulation panel comprising a modular thermal insulation panel (2), characterized in that, The modular insulation board (2) is connected with multiple groups in parallel, the two sides of the modular insulation board (2) are screw-connected with side frames (1), the side frames (1) are screw-connected with side walls, and one side of the modular insulation board (2) is screw-connected with a packaging mechanism (3) for packaging. The side frame (1) comprises a right-angle frame (11) and a first insertion frame (12) fixed on one side of the right-angle frame (11), the modular insulation board (2) comprises a frame piece (21) corresponding to the first insertion frame (12), the frame piece (21) is provided with a second insertion frame (211) corresponding to the side end of the first insertion frame (12) in a stacked manner, screw holes (212) are formed around the frame piece (21), and the packaging mechanism (3) comprises a glass fiber composite cloth backing (31) screw-connected on the upper end of the frame piece (21) and a decorative plate (32).

2. The assembled rigid fireproof thermal insulation board according to claim 1, characterized in that: A insertion groove (13) for inserting the second insertion frame (211) is formed on one side of the right-angle frame (11), and the first insertion frame (12) and the screw holes (212) are screw-connected in the middle.

3. The assembled rigid fireproof thermal insulation board according to claim 2, characterized in that: The modular insulation board (2) further comprises an aluminum foil film (22) movably placed in the frame piece (21), and one side of the aluminum foil film (22) is provided with a rock wool board (24) in a pasting manner.

4. The assembled rigid fireproof thermal insulation board according to claim 3, characterized in that: One side of the rock wool board (24) is provided with a modified phenolic foam board (25) in a pasting manner, and one side of the modified phenolic foam board (25) is provided with a galvanized steel wire mesh (26) in a pasting manner.

5. The assembled rigid fireproof thermal insulation board according to claim 4, characterized in that: The aluminum foil film (22), the rock wool board (24), the modified phenolic foam board (25) and the galvanized steel wire mesh (26) are bonded through an adhesive (23).

6. A method of manufacturing the assembled rigid fireproof thermal insulation board according to claim 5, characterized in that, The method comprises the following steps: S1: core material processing: core material pretreatment, composite molding and curing cutting; S2: insulation board filling: after the core material is cured, it is placed in the frame piece (21), and the side edge is sealed with sealant during filling; the frame piece (21) is pasted with aluminum foil tape at four corners to enhance the sealing and heat reflection effect; S3: insulation board assembly: realize the whole surface assembly of the side frame (1) and the modular insulation board (2) on the ship; S4: surface treatment: after the backing is cut, waterproof treatment is carried out, and finally the decorative plate (32) is positioned and fixed.

7. A method of manufacturing the assembled rigid fireproof thermal insulation board according to claim 6, characterized in that, The core material processing comprises the following steps: S11: core material pretreatment: select ship special rock wool, modified phenolic foam, adhesive (23) and galvanized steel wire. S12: composite molding: after the core material is cut, it is bonded and combined, and finally the galvanized steel mesh is embedded to improve the overall bending strength and avoid core material fragmentation caused by ship vibration. S13: curing and cutting: the combined board is sent to a curing room to ensure that the adhesive (23) is completely cured, and then the edge of the cured board is trimmed to remove burrs.

8. A method of manufacturing the assembled rigid fireproof thermal insulation board according to claim 7, characterized in that, The composite molding comprises the following steps: S121: core material cutting: the core material is cut according to the standard module size by using a numerical control cutting machine to avoid gaps during compounding; S122: bonding and compounding: the galvanized steel plate is combined with the core material by using a full-bonding gluing method, and is put into a hydraulic compounding machine for pressing to ensure that the layers are tightly combined without air pockets.

9. A method of manufacturing the assembled rigid fireproof thermal insulation board according to claim 8, characterized in that, The insulation board assembly comprises the following steps: S31: hull cleaning: clean the surface of the steel structure of the hull to be insulated, remove rust, oil stains, dust and other impurities, and ensure the surface is flat and dry; S32: side frame (1) positioning and fixing: according to the reference line, the side frame (1) is attached to the side end of the base layer, the position is adjusted to ensure alignment with the reference line, and the single-sided side frame (1) is fixed; S33: assembly and insertion; realize the staggered joint of the side frame (1) and the modular insulation board (2), and complete the assembly through the superposition of the second insertion frame (211) and the second insertion frame (211) in the adjacent modular insulation board (2), and the screw fixing of the side frame (1) and the second insertion frame (211) and the first insertion frame (12) after superposition.

10. A method of manufacturing the assembled rigid fireproof thermal insulation board according to claim 9, characterized in that, The surface treatment includes the following steps: S41: backing cutting: according to the size of the installation area of the insulation board, cut the glass fiber composite cloth; S42: waterproof treatment: the overlapping width of adjacent composite cloth is greater than five centimeters, the overlapping part is coated with special waterproof glue, and then pressed with a roller to ensure uniform penetration of the glue layer and form a sealed band; S43: decorative plate (32) positioning: the decorative plate (32) is fixed by screws, special decorative strips are embedded in the joints between the decorative plates (32) to cover the gaps and enhance the structural strength of the joints, the gaps between the decorative strips and the decorative plates (32) are filled with neutral sealant to ensure overall aesthetics and no water leakage hazards.

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