Double-sided composite reinforced rock wool board, production equipment and preparation method

Abstract

The invention provides a double-sided composite reinforced rock wool board, production equipment and a preparation method. The length of the double-sided composite reinforced rock wool board ranges from 600 mm to 2400 mm. And the width of the double-sided composite reinforced rock wool board ranges from 600mm to 2400mm. The thickness of the double-sided composite reinforced rock wool board ranges from 20 mm to 200 mm. The double-sided composite reinforced rock wool board comprises a rock wool base layer and two reinforced surface layers. The two reinforced surface layers are respectively adhered to two opposite surfaces of the rock wool base layer along the thickness direction through an adhesive. And the 90-degree peel strength between any one of the two reinforced surface layers and the rock wool base layer ranges from 4N / 75 mm to 30N / 75 mm. According to the double-sided composite reinforced rock wool board, the reinforcing surface layers are adhered to the two surfaces, in the thickness direction, of the rock wool base layer through the adhesive, so that the strength of the two outward surfaces, in the thickness direction, of the rock wool base layer is enhanced, and the corresponding surfaces of the rock wool base layer are prevented from being damaged due to friction in the processes of transportation, construction and the like; and the service life of the whole plate can be prolonged.

Description

Technical Field

[0001] The present application generally relates to the technical field of building materials, and more specifically to a double-sided composite reinforced rock wool board, a production device and a preparation method. Background Art

[0002] In the roofing system of the related art, rock wool boards are usually laid. However, due to the poor surface friction performance of rock wool boards, dust is easily dropped due to friction during transportation and construction. This not only causes damage to the roofing system, but also makes construction and transportation inconvenient.

[0003] Therefore, it is necessary to provide a double-sided composite reinforced rock wool board, production equipment and preparation method to at least partially solve the above problems. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description of the Invention section. The Summary of the Invention section of this application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the first aspect of the present application provides a double-sided composite reinforced rock wool board, wherein the length of the double-sided composite reinforced rock wool board ranges from 600 mm to 2400 mm, the width of the double-sided composite reinforced rock wool board ranges from 600 mm to 2400 mm, the thickness of the double-sided composite reinforced rock wool board ranges from 20 mm to 200 mm, and the double-sided composite reinforced rock wool board comprises:

[0006] Rockwool substrate; and

[0007] Two reinforcing surface layers, the two reinforcing surface layers are respectively bonded to two opposite surfaces of the rock wool base layer along the thickness direction by an adhesive, and the 90° peel strength between any one of the two reinforcing surface layers and the rock wool base layer ranges from 4N / 75mm to 30N / 75mm.

[0008] According to the double-sided composite reinforced rock wool board of the first aspect of the present application, by bonding the reinforced surface layer on the two surfaces of the rock wool base layer along the thickness direction with an adhesive, it is helpful to enhance the strength of the two surfaces of the rock wool base layer facing outward along the thickness direction, thereby preventing the corresponding surfaces of the rock wool base layer from being damaged due to friction during transportation, construction, etc., thereby improving the service life of the entire board. By setting the 90° peel strength of the reinforced surface layer 520 and the rock wool base layer 510 in the range of 4N / 75mm to 30N / 75mm, the stability of the connection structure between the reinforced surface layer 520 and the rock wool base layer 510 is ensured.

[0009] Optionally, the reinforcement surface layer is constructed of at least one of glass fiber woven fabric, coated non-woven felt, and uncoated non-woven felt.

[0010] Optionally, the reinforcement surface layer is constructed of glass fiber woven fabric, wherein

[0011] The glass fiber woven fabric has a gram weight range of 40g / m 2 ~1200g / m 2 Plain woven fabric; or

[0012] The glass fiber woven fabric has a gram weight range of 40g / m 2 ~200g / m 2 of mesh cloth.

[0013] Optionally, the reinforcing surface layer is constructed as a coated nonwoven felt, wherein

[0014] The weight range of the coated nonwoven felt is 100 g / m 2 ~400g / m 2 ; and / or

[0015] The thickness of the coated nonwoven felt is in the range of 0.1 mm to 1.5 mm; and / or

[0016] The tensile strength of the coated nonwoven felt is in the range of 100N / 50mm to 1000N / 50mm; and / or

[0017] The calorific value of the coated nonwoven felt is in the range of 1MJ / kg to 10MJ / kg; and / or

[0018] The air permeability of the coated nonwoven felt under a pressure of 100 Pa is in the range of 100 L / m 2 .s~10000L / m 2 .s; and / or

[0019] The strength retention rate of the coated nonwoven felt after aging ranges from 50% to 100%.

[0020] Optionally, the reinforcing surface layer is configured as a coated non-woven felt, the coating of the coated non-woven felt is made of resin and filler, the resin is configured as acrylic resin, and the filler is made of calcium carbonate, cement, sand and masterbatch.

[0021] Optionally, the coated nonwoven felt is configured as a coated nonwoven glass fiber felt.

[0022] Optionally, the reinforcing surface layer is constructed as a non-coated non-woven felt, wherein

[0023] The weight range of the non-coated non-woven felt is 30 g / m 2 ~100g / m 2 ; and / or

[0024] The thickness of the non-coated non-woven felt is in the range of 0.1 mm to 1.0 mm; and / or

[0025] The tensile strength of the non-coated non-woven felt is in the range of 100N / 50mm to 1000N / 50mm; and / or

[0026] The calorific value of the non-coated non-woven felt is in the range of 1MJ / kg to 10MJ / kg; and / or

[0027] The strength retention rate of the non-coated non-woven felt after aging ranges from 50% to 100%.

[0028] Optionally, the reinforcing surface layer is constructed as a non-coated non-woven felt, wherein

[0029] The non-coated non-woven felt is made of glass fiber and urea-formaldehyde resin; or

[0030] The non-coated non-woven felt is made of glass fiber and acrylic resin.

[0031] Optionally, the uncoated nonwoven felt is configured as an uncoated nonwoven fiberglass felt.

[0032] Optionally, the density of the double-sided composite reinforced rock wool board is in the range of 60 kg / m 3 ~220kg / m 3 .

[0033] Optionally, the weight of the resin bonding the rock wool base layer and any one of the two reinforced surface layers is in the range of 1 g / m 2 ~100g / m 2 ;or

[0034] The weight of the resin bonding the rock wool base layer and the two reinforced surface layers is in the range of 1 g / m 2 ~100g / m 2 .

[0035] Optionally, the binder is made of at least one of phenolic resin, epoxy resin, polyurethane, acrylic resin, sugar-based resin, urea-formaldehyde resin, and polyvinyl alcohol resin.

[0036] Optionally, the rock wool base layer is a structure formed by pressing using a pleating process, and the pleating ratio ranges from 1.0 to 4.0.

[0037] Optionally, the rock wool base layer has resin, and the resin content of the rock wool base layer ranges from 1.0% to 5.0%.

[0038] The second aspect of the present application provides a production device for a double-sided composite reinforced rock wool board, which is used to produce the above-mentioned double-sided composite reinforced rock wool board. The production device for the double-sided composite reinforced rock wool board comprises:

[0039] A conveyor device for conveying a rock wool matrix;

[0040] a first composite device, the first composite device being arranged corresponding to the upper part of the rock wool matrix located on the conveying device, the first composite device being used to apply glue to the reinforcing surface layer located above the rock wool matrix, and conveying the reinforcing surface layer to the upper part of the rock wool matrix, so that the reinforcing surface layer is attached to the upper part of the rock wool matrix; and

[0041] A second composite device, the second composite device is arranged corresponding to the lower part of the rock wool matrix located at the conveying device, and the second composite device is used to apply glue to the reinforcing surface layer located below the rock wool matrix, and convey the reinforcing surface layer to the lower part of the rock wool matrix so that the reinforcing surface layer is attached to the lower part of the rock wool matrix.

[0042] According to the production equipment of the double-sided composite reinforced rock wool board of the second aspect of the present application, the rock wool matrix is ​​transported by a conveying device; the reinforced surface layer located above the rock wool matrix is ​​glued by a first composite device, and the reinforced surface layer is transported to the upper part of the rock wool matrix, so that the reinforced surface layer located above the rock wool matrix can be attached to the upper part of the rock wool matrix; the reinforced surface layer located below the rock wool matrix is ​​glued by a second composite device, and the reinforced surface layer is transported to the lower part of the rock wool matrix, so that the reinforced surface layer located below the rock wool matrix can be attached to the lower part of the rock wool matrix. The production equipment of the double-sided composite reinforced rock wool board of the present application can realize the upper and lower parts of the rock wool matrix being attached to the reinforced surface layer respectively, so that the double-sided composite reinforced rock wool board can be produced; because the first composite device and the second composite device can operate synchronously, it helps to improve the production efficiency of the double-sided composite reinforced rock wool board.

[0043] Optionally, the first composite device and the second composite device both include:

[0044] an unwinding assembly, the unwinding assembly being used to unwind the rolled reinforcing surface layer; and

[0045] A glue coating component is used to apply adhesive to the unrolled reinforcement surface layer.

[0046] Optionally, the production equipment of the double-sided composite reinforced rock wool board further includes a curing furnace;

[0047] The unwinding assembly and the glue coating assembly of the second composite device are both located below the curing furnace. The second composite device also includes a traction assembly, one end of which is arranged corresponding to the entrance of the curing furnace so that the reinforced surface layer coated with adhesive is close to the lower surface of the rock wool substrate, and the other end of the traction assembly is arranged corresponding to the glue coating assembly to receive the reinforced surface layer coated with adhesive.

[0048] Optionally, the traction assembly comprises:

[0049] Traction bracket;

[0050] Two synchronous shafts, the synchronous shafts are rotatably connected to the traction bracket around their own axes, the two synchronous shafts are parallel to each other and cross the conveying direction of the rock wool matrix, and the two synchronous shafts are arranged vertically at intervals;

[0051] Two pairs of sprockets, one pair of the two pairs of sprockets is respectively arranged at two ends of one of the two synchronous shafts, and the other pair of the two pairs of sprockets is respectively arranged at two ends of the other of the two synchronous shafts;

[0052] a pair of chains, the pair of chains being spaced apart along the axial direction of the synchronization shaft, the chains being engaged with the sprocket; and

[0053] A traction member is provided on each of the pair of chains. The traction members on the pair of chains are arranged opposite to each other and are used to be connected to the ends of the traction rope.

[0054] Optionally, the traction assembly further includes:

[0055] A cutting piece is located at an end of the traction bracket close to the entrance of the curing furnace, and the cutting piece has a cutting portion for cutting the traction rope, and the cutting portion is located in a spacing area between a pair of the traction members.

[0056] Optionally, the unwinding assembly includes a core shaft, a transverse movable bracket, a longitudinal movable bracket and a frame, the transverse movable bracket is movably connected to the frame in the transverse direction, the longitudinal movable bracket is movably connected to the transverse movable bracket in the longitudinal direction, the end of the core shaft is connected to the longitudinal movable bracket, and the outside of the core shaft is used for sleeved the rolled reinforcement surface layer.

[0057] Optionally, the unwinding assembly comprises a core shaft, a transversely movable bracket and a frame, wherein the transversely movable bracket is movably connected to the frame in a transverse direction, and the core shaft is rotatably arranged around its own axis relative to the transversely movable bracket.

[0058] Optionally, the unwinding assembly comprises a core shaft, a longitudinal movable support and a frame, wherein the longitudinal movable support is movably connected to the frame along the longitudinal direction, and the core shaft is rotatably arranged around its own axis relative to the longitudinal movable support.

[0059] Optionally, the unwinding assembly comprises at least two mandrels, and the at least two mandrels are spaced apart along a conveying direction of the reinforced surface layer.

[0060] Optionally, the glue coating assembly includes a glue groove, a glue roller and a guide roller, the glue groove is used to accommodate adhesive, the glue roller is at least partially located inside the glue groove and is rotatable around its own axis relative to the glue groove, the glue roller is used to apply adhesive to the reinforced surface layer, the guide roller is rotatable around its own axis relative to the glue groove, and the glue roller and the guide roller are respectively used to contact two surfaces of the reinforced surface layer in different directions.

[0061] Optionally, the glue coating assembly includes a pair of guide rollers, and the pair of guide rollers are respectively located on both sides of the rubber roller along the conveying direction of the reinforcement surface layer to limit the contact area between the rubber roller and the reinforcement surface layer.

[0062] Optionally, the guide roller is vertically movably arranged relative to the rubber roller to adjust the contact area between the guide roller and the reinforced surface layer.

[0063] Optionally, the glue coating assembly includes a glue groove, an upper glue roller and a lower glue roller, the lower glue roller is at least partially located inside the glue groove and is rotatably arranged around its own axis relative to the glue groove, the upper glue roller is located above the lower glue roller, the upper glue roller contacts or approaches the surface of the lower glue roller, the lower glue roller is used to adhere the adhesive in the glue groove to the upper glue roller, and the upper glue roller is used to apply the adhesive to the reinforced surface layer.

[0064] Optionally, the upper rubber roller and the lower rubber roller are arranged to be vertically movably relative to each other.

[0065] The third aspect of the present application provides a method for preparing a double-sided composite reinforced rock wool board, which is used to produce the above-mentioned double-sided composite reinforced rock wool board. The method for preparing the double-sided composite reinforced rock wool board comprises the following steps:

[0066] S0, after the rock wool fibers are fiberized and sizing, a cotton collecting device is used to collect the rock wool fibers into a primary felt through negative pressure adsorption, and then the rock wool fibers are evenly distributed on the production line layer by layer through a pendulum, thereby obtaining an uncured rock wool base layer;

[0067] S1, applying adhesive evenly on the surface of the reinforced surface layer;

[0068] S2, using an online curing and drying process, the two reinforced surface layers are respectively bonded online to the two opposite surfaces of the uncured rock wool base layer along the thickness direction, and the bonded reinforced surface layers and the rock wool base layer are passed through a curing furnace, and dried and cured under the pressurization and ventilation airflow of the chain plate of the curing furnace, thereby obtaining a double-sided composite reinforced rock wool board.

[0069] According to the preparation method of the double-sided composite reinforced rock wool board of the third aspect of the present application, after applying the adhesive to the reinforced surface layer, the two reinforced surface layers with the adhesive are respectively attached to the two opposite surfaces of the rock wool base layer along the thickness direction, and then cured and formed in a curing furnace to obtain a double-sided composite reinforced rock wool board. The preparation method of the double-sided composite reinforced rock wool board of the present application can be used to produce a double-sided composite reinforced rock wool board, and the production efficiency can be improved.

[0070] Optionally, in step S1, the process of applying the adhesive is one of spraying, coating and film transfer.

[0071] Optionally, in step S1, the binder is selected from at least one of phenolic resin, epoxy resin, polyurethane, acrylic resin, sugar-based resin, urea-formaldehyde resin and polyvinyl alcohol resin.

[0072] Optionally, in step S2, the curing furnace has at least two temperature zones, each temperature zone is sequentially arranged from the entrance to the exit of the curing furnace, and the temperature range of each temperature zone is 180-300°C. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The following drawings of the embodiments of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the principles of the present application. In the drawings,

[0074] Figure 1 It is a schematic diagram of a production device for a double-sided composite reinforced rock wool board according to a preferred embodiment of the present application;

[0075] Figure 2 is a schematic structural diagram of a first composite device according to a preferred embodiment of the present application;

[0076] Figure 3 This is a structural schematic diagram of a second composite device connected to a curing furnace according to a preferred embodiment of the present application;

[0077] Figure 4 It is a structural schematic diagram of a traction assembly according to a preferred embodiment of the present application;

[0078] Figure 5 For along Figure 4 Sectional view taken along line AA;

[0079] Figure 6 for Figure 5 The enlarged view at center Ⅰ;

[0080] Figure 7 for Figure 5 The enlarged view at II in the middle; and

[0081] Figure 8 It is a schematic diagram of a composite reinforced rock wool board in a 90° peel strength test according to a preferred embodiment of the present application.

[0082] Description of reference numerals:

[0083] 100: conveying device 200: first composite device

[0084] 210: first unwinding assembly 211: first mandrel

[0085] 212: first transverse movable bracket 213: first transverse adjusting member

[0086] 214: first longitudinal movable bracket 215: first longitudinal adjusting member

[0087] 216: first frame 217: first brake member

[0088] 220: First glue coating component 221: First glue tank

[0089] 222: First rubber roller 223: First guide roller

[0090] 300: second composite device 310: second unwinding component

[0091] 311: second mandrel 312: second transverse movable support

[0092] 314: second longitudinal movable bracket 315: second longitudinal adjusting member

[0093] 316: Second frame 320: Second glue coating assembly

[0094] 321: Second rubber groove 322: Second rubber roller

[0095] 323: Second guide roller 330: Traction assembly

[0096] 331: Traction bracket 332: Synchronous shaft

[0097] 333: sprocket 334: chain

[0098] 335: traction member 336: cutting member

[0099] 336a: cutting part 337: synchronous hand wheel

[0100] 338: Adjustment hand wheel 400: Curing oven

[0101] 400a: Entrance 510: Rock wool base

[0102] 520: Enhanced surface layer F: Tensile force

[0103] D1: vertical D2: horizontal

[0104] D3: Vertical DETAILED DESCRIPTION

[0105] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application embodiments can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application embodiments, some technical features well known in the art are not described.

[0106] In order to fully understand the implementation of the present application, a detailed structure will be presented in the following description. Obviously, the implementation of the implementation of the present application is not limited to the specific details familiar to those skilled in the art.

[0107] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application, and the singular forms "a", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, integral bodies, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof.

[0108] Ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0109] Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present application and do not limit the present application.

[0110] The present application provides a double-sided composite reinforced rock wool board. The length of the double-sided composite reinforced rock wool board according to the present application ranges from 600mm to 2400mm, the width of the double-sided composite reinforced rock wool board ranges from 600mm to 2400mm, and the thickness of the double-sided composite reinforced rock wool board ranges from 20mm to 200mm. The length of the double-sided composite reinforced rock wool board is greater than or equal to the width of the double-sided composite reinforced rock wool board. Figure 8 According to the present application, the double-sided composite reinforced rock wool board may include a rock wool base layer 510 and two reinforced surface layers 520. The two reinforced surface layers 520 are respectively bonded to two opposite surfaces of the rock wool base layer 510 along the thickness direction by an adhesive.

[0111] It can be understood that the double-sided composite reinforced rock wool board according to the present application is a layered composite structure. When the double-sided composite reinforced rock wool board of the present application is placed in a horizontal posture, the thickness direction of the double-sided composite reinforced rock wool board is parallel to the vertical direction.

[0112] According to the double-sided composite reinforced rock wool board of the present application, by bonding the reinforcing surface layer 520 on the two surfaces of the rock wool base layer 510 along the thickness direction with an adhesive, it is helpful to enhance the strength of the two surfaces of the rock wool base layer 510 facing outward along the thickness direction, thereby preventing the corresponding surfaces of the rock wool base layer 510 from being damaged due to friction during transportation, construction, etc., and thus improving the service life of the board as a whole. Specifically, by attaching the reinforcing surface layer 520 to the two surfaces of the rock wool base layer 510 along the thickness direction, respectively, the rock wool base layer 510 can be prevented from being damaged due to friction and bumps, and in particular, the generation of rock wool debris in the rock wool base layer 510 can be reduced, thereby making the board smoother and cleaner.

[0113] For example, the 90° peel strength between any one of the two reinforced surface layers 520 and the rock wool base layer 510 may be in the range of 4N / 75mm to 30N / 75mm. The 90° peel strength here can be used to measure the bonding effect between the rock wool base layer 510 and any one of the two reinforced surface layers 520. By setting the 90° peel strength between the reinforced surface layer 520 and the rock wool base layer 510 in the range of 4N / 75mm to 30N / 75mm, the stability of the connection structure between the reinforced surface layer 520 and the rock wool base layer 510 is ensured.

[0114] like Figure 8 As shown, the measuring principle of the 90° peel strength of the reinforced surface layer 520 and the rock wool base layer 510 is: the rock wool of the reinforced surface layer 520 and the rock wool base layer 510 is at a 90° angle, a tensile force F is applied at a uniform speed, and the average tensile bonding strength is taken as the peel strength.

[0115] According to the present application, the reinforcing surface layer 520 can be constructed as at least one of glass fiber woven fabric, coated non-woven felt, and non-coated non-woven felt. That is, the reinforcing surface layer 520 can be selected from any one of glass fiber woven fabric, coated non-woven felt, and non-coated non-woven felt. The reinforcing surface layer 520 can also be a composite structure of two or more selected from glass fiber woven fabric, coated non-woven felt, and non-coated non-woven felt. When the reinforcing surface layer 520 is a composite structure of two or more selected from glass fiber woven fabric, coated non-woven felt, and non-coated non-woven felt, the reinforcing surface layer 520 can be a composite structure stacked along the thickness direction.

[0116] In one example of the present application, the reinforcing surface layer 520 may be constructed as a glass fiber woven fabric. The glass fiber woven fabric may have a gram weight range of 40 g / m 2 ~1200g / m 2 The glass fiber fabric here can also be in the weight range of 40g / m 2 ~200g / m 2 of mesh cloth.

[0117] In another example of the present application, the reinforcement facing 520 may be configured as a coated nonwoven felt.

[0118] The weight of the coated nonwoven felt here can range from 100g / m 2 ~400g / m 2 For example, the weight range of coated nonwoven felt can be 100g / m 2 , 200g / m 2 , 300g / m 2 , 400g / m 2 Any value among the above.

[0119] The thickness of the coated nonwoven felt may be in the range of 0.1 mm to 1.5 mm. For example, the thickness of the coated nonwoven felt may be in the range of any value such as 0.1 mm, 0.5 mm, 1.0 mm, or 1.5 mm.

[0120] The tensile strength of the coated nonwoven felt may range from 100 N / 50 mm to 1000 N / 50 mm. For example, the tensile strength of the coated nonwoven felt may be any value such as 100 N / 50 mm, 300 N / 50 mm, 500 N / 50 mm, 700 N / 50 mm, or 1000 N / 50 mm.

[0121] The calorific value of the coated nonwoven felt may range from 1MJ / kg to 10MJ / kg. For example, the calorific value of the coated nonwoven felt may be any one of 1MJ / kg, 3MJ / kg, 5MJ / kg, 7MJ / kg, 10MJ / kg, etc.

[0122] The air permeability of the coated nonwoven felt under a pressure of 100Pa can range from 100L / m 2 .s~10000L / m 2 .s. For example, the air permeability of the coated nonwoven felt under a pressure of 100Pa can be 100L / m 2 .s、300L / m 2 .s、500L / m 2 .s、700L / m 2 .s、10000L / m 2 One of the arbitrary values ​​such as .s.

[0123] The strength retention rate of the coated nonwoven felt after aging can range from 50% to 100%. For example, the strength retention rate of the coated nonwoven felt after aging can be any value of 50%, 60%, 70%, 80%, 90%, 100%, etc.

[0124] In the example where the reinforced surface layer 520 of the present application is configured as a coated nonwoven felt, the coating of the coated nonwoven felt may be made of resin and filler, wherein the resin may be acrylic resin, and the filler may be made of calcium carbonate, cement, sand, and masterbatch.

[0125] Furthermore, the above-mentioned coated nonwoven felt can be configured as a coated nonwoven glass fiber felt.

[0126] In yet another example of the present application, the reinforcement surface layer 520 may be configured as a non-coated non-woven felt.

[0127] The weight of the non-coated non-woven felt here can range from 30g / m 2 ~100g / m 2 For example, the weight of non-coated non-woven felt can be 30g / m 2 , 50g / m 2 , 70g / m 2 , 90g / m 2 , 100g / m 2 Any value among the above.

[0128] The thickness of the non-coated non-woven felt may range from 0.1 mm to 1.0 mm. For example, the thickness of the non-coated non-woven felt may be any value such as 0.1 mm, 0.5 mm, 0.8 mm, or 1.0 mm.

[0129] The tensile strength of the non-coated non-woven felt may range from 100 N / 50 mm to 1000 N / 50 mm. For example, the tensile strength of the non-coated non-woven felt may be any value such as 100 N / 50 mm, 300 N / 50 mm, 500 N / 50 mm, 700 N / 50 mm, or 1000 N / 50 mm.

[0130] The calorific value of the non-coated non-woven felt may range from 1MJ / kg to 10MJ / kg. For example, the calorific value of the non-coated non-woven felt may be any value such as 1MJ / kg, 3MJ / kg, 5MJ / kg, 7MJ / kg, 10MJ / kg, etc.

[0131] The strength retention rate of the non-coated non-woven felt after aging can range from 50% to 100%. For example, the strength retention rate of the non-coated non-woven felt after aging can be any value of 50%, 60%, 70%, 80%, 90%, 100%, etc.

[0132] Furthermore, the above-mentioned non-coated non-woven felt can be configured as a non-coated non-woven glass fiber felt.

[0133] In the example of the present application where the reinforcing surface layer 520 is configured as a non-coated non-woven felt, the non-coated non-woven felt may be made of glass fiber and urea-formaldehyde resin.

[0134] In the example of the present application where the reinforcing surface layer 520 is configured as a non-coated non-woven felt, the non-coated non-woven felt may also be made of glass fiber and acrylic resin.

[0135] The density of the double-sided composite reinforced rock wool board according to the present application can be in the range of 60kg / m 3 ~220kg / m 3 For example, the density of the double-sided composite reinforced rock wool board here can be 60kg / m 3 、80kg / m 3 , 120kg / m 3 、180kg / m 3 , 220kg / m 3 Any value among the above.

[0136] In one example, the weight of the resin bonding the rock wool base layer 510 and any one of the two reinforcement surface layers 520 may be in the range of 1 g / m 2 ~100g / m 2 .

[0137] Furthermore, the weight of the resin bonding the rock wool base layer 510 and any one of the two reinforced surface layers 520 may be in the range of not less than 5 g / m 2 And less than 10g / m 2 The weight of the resin bonding the rock wool base layer 510 and any one of the two reinforced surface layers 520 may also be greater than 10 g / m 2 And less than 20g / m 2 .

[0138] In another example, the total weight of the resin bonding the rock wool base layer 510 and the two reinforcement surface layers 520 is in the range of 1 g / m2 ~100g / m 2 .

[0139] Furthermore, the total weight of the resin bonding the rock wool base layer 510 and the two reinforced surface layers 520 may be in the range of not less than 5 g / m 2 And less than 10g / m 2 The total weight of the resin bonding the rock wool base layer 510 and the two reinforced surface layers 520 may also be greater than 10 g / m 2 And less than 20g / m 2 .

[0140] For example, the binder is made of at least one of phenolic resin, epoxy resin, polyurethane, acrylic resin, sugar-based resin, urea-formaldehyde resin, and polyvinyl alcohol resin. The binder here is used to bond the reinforcement surface layer 520 to the rock wool base layer 510. The binder used in the production of the rock wool base layer 510 can also be the same as the binder coated on the reinforcement surface layer 520.

[0141] The rock wool base layer 510 according to the present application may be constructed as a structure pressed by a pleating process, and the pleating ratio may range from 1.0 to 4.0.

[0142] Optionally, the rock wool base layer 510 has resin. That is, the rock wool base layer 510 itself contains resin. The resin content of the rock wool base layer 510 may range from 1.0% to 5.0%.

[0143] See also Figures 1 to 7 The present application also provides a production device for a double-sided composite reinforced rock wool board. The production device is used to produce the above-mentioned double-sided composite reinforced rock wool board. The production device for a double-sided composite reinforced rock wool board according to the present application may include a conveying device 100, a first composite device 200 and a second composite device 300. The conveying device 100 is used to convey a rock wool matrix. The rock wool matrix here can be pressed by a pleating process. The first composite device 200 is arranged corresponding to the upper part of the rock wool matrix located on the conveying device 100. The first composite device 200 is used to apply glue to the reinforced surface layer 520 located above the rock wool matrix, and to convey the reinforced surface layer 520 to the upper part of the rock wool matrix so that the reinforced surface layer 520 is attached to the upper part of the rock wool matrix. The second composite device 300 is arranged corresponding to the lower part of the rock wool matrix located on the conveying device 100. The second composite device 300 is used to apply glue to the reinforcing surface layer 520 located below the rock wool matrix, and transport the reinforcing surface layer 520 to the lower part of the rock wool matrix, so that the reinforcing surface layer 520 is attached to the lower part of the rock wool matrix.

[0144] According to the production equipment of the double-sided composite reinforced rock wool board of the present application, the rock wool matrix is ​​transported by the conveying device 100; the reinforced surface layer 520 located above the rock wool matrix is ​​glued by the first composite device 200, and the reinforced surface layer 520 is transported to the upper part of the rock wool matrix, so that the reinforced surface layer 520 located above the rock wool matrix can be attached to the upper part of the rock wool matrix; the reinforced surface layer 520 located below the rock wool matrix is ​​glued by the second composite device 300, and the reinforced surface layer 520 is transported to the lower part of the rock wool matrix, so that the reinforced surface layer 520 located below the rock wool matrix can be attached to the lower part of the rock wool matrix. The production equipment of the double-sided composite reinforced rock wool board of the present application can realize that the upper and lower parts of the rock wool matrix are respectively attached to the reinforced surface layer 520, so that the double-sided composite reinforced rock wool board can be produced; because the first composite device 200 and the second composite device 300 can be operated synchronously, it is helpful to improve the production efficiency of the double-sided composite reinforced rock wool board.

[0145] For example, the conveying device 100 may be configured as a conveyor belt, a conveyor chain, a conveyor roller, or the like.

[0146] According to the present application, the first composite device 200 and the second composite device 300 may include an unwinding assembly and a gluing assembly. The unwinding assembly is used to unwind the rolled reinforcing surface layer 520. The gluing assembly is located between the unwinding assembly and the conveying device 100. The gluing assembly is used to apply adhesive to the unrolled reinforcing surface layer 520.

[0147] See also Figure 2 For example, the first composite device 200 may include a first unwinding assembly 210 and a first glue coating assembly 220 .

[0148] The first unwinding assembly 210 may include a first mandrel 211, a first transverse movable bracket 212, a first transverse adjusting member 213, a first longitudinal movable bracket 214, a first longitudinal adjusting member 215, a first frame 216, and a first brake member 217. The first mandrel 211 is rotatably mounted to one of the first transverse movable bracket 212 and the first longitudinal movable bracket 214 around its own axis. The other of the first transverse movable bracket 212 and the first longitudinal movable bracket 214 is connected to the first frame 216. The first transverse movable bracket 212 and the first longitudinal movable bracket 214 are connected to each other. The first transverse movable bracket 212 can move relative to the first frame 216 along the transverse direction D2 to change the position of the first mandrel 211 along the transverse direction D2. The first longitudinal movable bracket 214 can move relative to the first frame 216 along the longitudinal direction D1 to change the position of the first mandrel 211 along the longitudinal direction D1. Two groups of the first longitudinal adjusting member 215 are provided. Two groups of first longitudinal adjustment members 215 are respectively arranged at the two ends of the first mandrel 211 in the axial direction. The first longitudinal adjustment member 215 is used to be operated to adjust the position of the axial end of the first mandrel 211 in the longitudinal direction D1. The first transverse adjustment member 213 is connected between the first frame 216 and the other of the first transverse movable bracket 212 and the first longitudinal movable bracket 214. The first transverse adjustment member 213 is used to be operated to adjust the position of the other of the first transverse movable bracket 212 and the first longitudinal movable bracket 214 in the transverse direction D2, thereby changing the position of the first mandrel 211 in the transverse direction D2. The first brake member 217 is connected to the first mandrel 211, and the first brake member 217 is used to be operated to adjust the damping force exerted on the first mandrel 211. The longitudinal direction D1 here is perpendicular to the transverse direction D2. The axis of the first mandrel 211 is substantially parallel to the transverse direction D2.

[0149] The first glue coating assembly 220 may include a first glue groove 221, a first glue roller 222 and a first guide roller 223. The first glue groove 221 is used to accommodate an adhesive. The first glue roller 222 is located at the upper part of the first glue groove 221. The first glue roller 222 is at least partially located inside the first glue groove 221 and is rotatably arranged around its own axis relative to the groove of the first glue roller 222. The first glue roller 222 is substantially parallel to the first mandrel 211. The first glue roller 222 is used to adhere the adhesive in the first glue groove 221 and apply the adhesive to the reinforced surface layer 520. The first guide roller 223 is rotatably arranged around its own axis relative to the first glue groove 221, and the first glue roller 222 and the first guide roller 223 are respectively used to contact two surfaces of the reinforced surface layer 520 in different directions. The number and position of the first guide roller 223 can be determined according to actual production requirements.

[0150] exist Figure 2In the example shown, the first transverse movable bracket 212 is movably mounted to the upper part of the first frame 216 along the transverse direction D2. The first longitudinal movable bracket 214 is movably mounted to the upper part of the first transverse movable bracket 212 along the longitudinal direction D1. The first longitudinal adjustment member 215 is installed between the first longitudinal movable bracket 214 and the first transverse movable bracket 212. The first longitudinal adjustment member 215 may include a screw extending along the longitudinal direction D1. The screw is screwed to at least one of the first transverse movable bracket 212 and the first longitudinal movable bracket 214. Rotating the screw can realize the first longitudinal movable bracket 214 to move relative to the first transverse movable bracket 212 along the longitudinal direction D1. The first transverse adjustment member 213 may include a screw extending along the transverse direction D2. The screw is screwed to at least one of the first transverse movable bracket 212 and the first frame 216. Rotating the screw can realize the first transverse movable bracket 212 to move relative to the first frame 216 along the transverse direction D2. The first longitudinal adjustment member 215 and the first transverse adjustment member 213 may also include a hand wheel connected to the screw rod. The hand wheel is used to be operated to rotate the screw rod.

[0151] According to an example provided in the present application, the first glue coating assembly 220 may include a pair of first guide rollers 223. The pair of first guide rollers 223 are respectively located on both sides of the first glue roller 222 along the conveying direction of the reinforcement surface layer 520 to limit the contact area between the first glue roller 222 and the reinforcement surface layer 520.

[0152] Further, the first guide roller 223 is movably arranged relative to the first rubber roller 222 along the vertical direction D3 to adjust the contact area between the guide roller and the reinforcing surface layer 520. The first rubber coating assembly 220 may include a fastener for fixing the position of the guide roller along the vertical direction D3. The fastener here may be a bolt.

[0153] According to another example of the present application, the first glue coating assembly 220 provided may include a glue groove, an upper glue roller and a lower glue roller. The lower glue roller is at least partially located inside the glue groove and is rotatably arranged around its own axis relative to the glue groove. The upper glue roller is located above the lower glue roller. The upper glue roller contacts or approaches the surface of the lower glue roller. The lower glue roller is used to adhere the adhesive in the glue groove to the upper glue roller. The upper glue roller is used to apply the adhesive to the reinforcement surface layer 520.

[0154] Further, the upper glue roller and the lower glue roller are movably arranged relative to each other along the vertical direction D3. In this way, the spacing between the upper glue roller and the lower glue roller can be adjusted, thereby adjusting the thickness of the adhesive adhering to the upper glue roller.

[0155] See also Figure 2For example, the first unwinding assembly 210 may include at least two first mandrels 211. The at least two first mandrels 211 are arranged at intervals along the conveying direction of the reinforcing surface layer 520. When one of the at least two first mandrels 211 is in use, the other first mandrels 211 of the at least two first mandrels 211 may be used as spares. For example, before the roll of material on a first mandrel 211 in use is used up, a new roll of material may be installed on the other spare first mandrels 211.

[0156] For another example, at least two groups of first unwinding assemblies 210 may be provided. At least two groups of first unwinding assemblies 210 may be arranged in a horizontal direction D2, so that each group of first unwinding assemblies 210 may be unwound synchronously, thereby forming a reinforced surface layer 520 by splicing on the upper part of the rock wool base layer 510. At least two groups of first unwinding assemblies 210 may also be arranged in sequence in a longitudinal direction D1. When one group of the at least two groups of first unwinding assemblies 210 is unwinding, the remaining first unwinding assemblies 210 may be used as a standby. At least two groups of first unwinding assemblies 210 may also be arranged in a horizontal direction D2 and a longitudinal direction D1, respectively.

[0157] See also Figure 3 For example, the second composite device 300 may include a second unwinding assembly 310 and a second gluing assembly 320 .

[0158] Wherein, the second unwinding assembly 310 may include a second mandrel 311, a second transverse movable bracket 312, a second longitudinal movable bracket 314, a second longitudinal adjustment member 315, a second frame 316 and a second brake member (not marked). The second mandrel 311 is rotatably mounted to one of the second transverse movable bracket 312 and the second longitudinal movable bracket 314 around its own axis. The other of the second transverse movable bracket 312 and the second longitudinal movable bracket 314 is connected to the second frame 316. The second transverse movable bracket 312 and the second longitudinal movable bracket 314 are connected to each other. The second transverse movable bracket 312 can move relative to the second frame 316 along the transverse direction D2 to change the position of the second mandrel 311 along the transverse direction D2. The second longitudinal movable bracket 314 can move relative to the second frame 316 along the longitudinal direction D1 to change the position of the second mandrel 311 along the longitudinal direction D1. Two groups of second longitudinal adjustment members 315 are provided. The two groups of second longitudinal adjustment members 315 are respectively arranged at the two ends of the second mandrel 311 along the axial direction. The second longitudinal adjustment member 315 is used to be operated to adjust the position of the axial end of the second mandrel 311 in the longitudinal direction D1. The second brake member is connected to the second mandrel 311, and the second brake member is used to be operated to adjust the damping force exerted on the second mandrel 311. The axis of the second mandrel 311 is substantially parallel to the transverse direction D2.

[0159] The second glue coating assembly 320 may include a second glue groove 321, a second glue roller 322 and a second guide roller 323. The second glue groove 321 is used to accommodate an adhesive. The second glue roller 322 is located at the upper part of the second glue groove 321. The second glue roller 322 is at least partially located inside the second glue groove 321 and is rotatably arranged around its own axis relative to the second glue roller 322 groove. The second glue roller 322 is substantially parallel to the second mandrel 311. The second glue roller 322 is used to adhere the adhesive in the second glue groove 321 and apply the adhesive to the reinforced surface layer 520. The second guide roller 323 is rotatably arranged around its own axis relative to the second glue groove 321, and the second glue roller 322 and the second guide roller 323 are respectively used to contact two surfaces of the reinforced surface layer 520 in different directions. The number and position of the second guide roller 323 can be determined according to actual production requirements.

[0160] exist Figure 3 In the example shown, the second transverse movable bracket 312 is movably mounted to the upper part of the second frame 316 along the transverse direction D2. The second longitudinal movable bracket 314 is movably mounted to the upper part of the second transverse movable bracket 312 along the longitudinal direction D1. The second longitudinal adjustment member 315 is installed between the second longitudinal movable bracket 314 and the second transverse movable bracket 312. The second longitudinal adjustment member 315 may include a screw extending along the longitudinal direction D1. The screw is screwed to at least one of the second transverse movable bracket 312 and the second longitudinal movable bracket 314. Rotating the screw can realize the second longitudinal movable bracket 314 moving relative to the second transverse movable bracket 312 along the longitudinal direction D1. The second longitudinal adjustment member 315 may also include a hand wheel connected to the screw. The hand wheel is used to be operated to rotate the screw. The second frame 316 can be constructed as a foundation pit. The foundation pit here is opened on the ground of the production workshop.

[0161] According to an example provided in the present application, the second glue coating assembly 320 may include a pair of second guide rollers 323. The pair of second guide rollers 323 are respectively located on both sides of the second glue roller 322 along the conveying direction of the reinforcement surface layer 520 to limit the contact area between the second glue roller 322 and the reinforcement surface layer 520.

[0162] Further, the second guide roller 323 is movably arranged relative to the second rubber roller 322 along the vertical direction D3 to adjust the contact area between the guide roller and the reinforcing surface layer 520. The second rubber coating assembly 320 may include a fastener for fixing the position of the guide roller along the vertical direction D3. The fastener here may be a bolt.

[0163] The second glue coating assembly 320 provided according to another example of the present application may include a glue groove, an upper glue roller and a lower glue roller. The lower glue roller is at least partially located inside the glue groove and is rotatably arranged around its own axis relative to the glue groove. The upper glue roller is located above the lower glue roller. The upper glue roller contacts or approaches the surface of the lower glue roller. The lower glue roller is used to adhere the adhesive in the glue groove to the upper glue roller. The upper glue roller is used to apply the adhesive to the reinforcement surface layer 520.

[0164] Further, the upper glue roller and the lower glue roller are movably arranged relative to each other along the vertical direction D3. In this way, the spacing between the upper glue roller and the lower glue roller can be adjusted, thereby adjusting the thickness of the adhesive adhering to the upper glue roller.

[0165] See also Figure 3 For example, the second unwinding assembly 310 may include at least two second mandrels 311. The at least two second mandrels 311 are arranged at intervals along the conveying direction of the reinforcing surface layer 520. When one of the at least two second mandrels 311 is in use, the other second mandrels 311 of the at least two second mandrels 311 may be used as spares. For example, before the roll of material on the second mandrel 311 in use is used up, a new roll of material may be installed on the other spare second mandrels 311.

[0166] For another example, at least two groups of second unwinding assemblies 310 may be provided. At least two groups of second unwinding assemblies 310 may be arranged in a horizontal direction D2, so that each group of second unwinding assemblies 310 may be unwound synchronously, thereby forming a reinforced surface layer 520 by splicing on the upper part of the rock wool base layer 510. At least two groups of second unwinding assemblies 310 may also be arranged in sequence in a longitudinal direction D1. When one group of the at least two groups of second unwinding assemblies 310 is unwound, the remaining second unwinding assemblies 310 may be used as a standby. At least two groups of second unwinding assemblies 310 may also be arranged in a horizontal direction D2 and a longitudinal direction D1, respectively.

[0167] See 1 and Figure 3In addition, the production equipment of the double-sided composite reinforced rock wool board may also include a curing furnace 400. The second unwinding assembly 310 and the second glue coating assembly 320 are both located below the curing furnace 400. The second composite device 300 may also include a traction assembly 330. One end of the traction assembly 330 is arranged corresponding to the entrance 400a of the curing furnace 400 so that the reinforced surface layer 520 coated with the adhesive is close to the lower surface of the rock wool matrix. The other end of the traction assembly 330 is arranged corresponding to the glue coating assembly to receive the reinforced surface layer 520 coated with the adhesive. By setting the traction assembly 330, it is possible to guide the reinforced surface layer 520 located below to the lower part of the rock wool matrix so that the reinforced surface layer 520 is attached to the lower part of the rock wool matrix. Since the second unwinding assembly 310 and the second glue coating assembly 320 are both located in the foundation pit below the curing furnace 400. This improves the space utilization rate, makes the overall layout of the production equipment more compact, and facilitates the management and maintenance of the production equipment.

[0168] See also Figures 3 to 7 For example, the traction assembly 330 may include a traction bracket 331, two synchronous shafts 332, two pairs of sprockets 333, a pair of chains 334 and a traction member 335. The synchronous shaft 332 is rotatably connected to the traction bracket 331 around its own axis. The two synchronous shafts 332 are parallel to each other and cross the conveying direction of the rock wool matrix. The two synchronous shafts 332 are arranged at intervals along the vertical direction D3. One pair of sprockets 333 in the two pairs of sprockets 333 is respectively arranged at the two ends of one synchronous shaft 332 of the two synchronous shafts 332. The other pair of sprockets 333 in the two pairs of sprockets 333 is respectively arranged at the two ends of the other synchronous shaft 332 of the two synchronous shafts 332. A pair of chains 334 is arranged at intervals along the axial direction of the synchronous shaft 332. The chain 334 is engaged with the sprocket 333 to achieve a transmission connection. The engagement here can be understood as biting or meshing. The pair of chains 334 are respectively provided with traction members 335. The traction members 335 located on a pair of chains 334 are arranged opposite to each other. The traction members 335 are used to be connected to the ends of the traction ropes. The traction ropes here can be selected from ropes or cords in the prior art. By rotating the synchronization shaft 332, the two pairs of sprockets 333 can be driven to rotate synchronously through the chain 334. During the movement of the chain 334, the traction members 335 move with the chain 334. When in use, the traction member 335 located on one of the chains 334 can be connected to the traction member 335 of the other chain 334 along the axial direction of the synchronization shaft 332 through the traction rope, so that the traction rope spans between the pair of chains 334. Then, the traction rope can be connected to one end of the material roll of the reinforced surface layer 520 by means of adhesive tape, staples, etc. Finally, by rotating the synchronization shaft 332, one end of the material roll can be pulled in the direction of the conveying line close to the rock wool matrix. In this process, the material roll of the reinforced surface layer 520 is adaptively unwound under the action of the traction force of the traction assembly 330.

[0169] In order to facilitate the rotation of the synchronization shaft 332, a synchronization hand wheel 337 may be installed at the end of the synchronization shaft 332. The synchronization shaft 332 may be rotated by rotating the synchronization hand wheel 337.

[0170] See also Figures 4 to 7 In addition, the traction assembly 330 may further include a cutting piece 336. The cutting piece 336 is located at the end of the traction bracket 331 close to the entrance 400a of the curing furnace 400. The cutting piece 336 has a cutting portion 336a for cutting the traction rope. The cutting portion 336a is located in the interval area between a pair of traction members 335. The cutting piece 336 here can be a metal plate with a blade. The cutting portion 336a is a blade. The contour shape of the blade can be V-shaped, arc-shaped, etc. This can prevent the traction rope from slipping during the cutting process.

[0171] See also Figures 4 to 6 For example, the cutting member 336 may be a sheet metal member that has been bent at least once, so that the cutting portion 336a can be staggered with the traction member 335 along the axial direction of the synchronization shaft 332, thereby avoiding the movement of the traction member 335. In the illustrated example, the cutting member 336 can be substantially configured as a Z-shaped plate member.

[0172] See also Figure 5 and Figure 6 , the middle part of the traction bracket 331 can be pivotally arranged relative to the second frame 316 around a pivot axis parallel to the synchronization shaft 332. A screw nut assembly can be arranged at one end of the traction bracket 331 along the transmission direction of the chain 334. The screw nut assembly here can include a screw, a nut and a fixing member. The screw is screwed to the nut. The nut is mounted on the traction bracket 331. One end of the screw is rotatably mounted on the fixing member. The fixing member is fixedly arranged relative to the second frame 316. For example, when the second frame 316 is configured as the inner wall of the foundation pit, the fixing member can be fixed to the inner side wall of the foundation pit. Rotating the screw can drive the traction bracket 331 to rotate around the pivot axis, thereby adjusting the pitch angle of the traction bracket 331. The end of the screw away from the fixing member can be fixedly connected to the adjusting hand wheel 338. By operating the adjusting hand wheel 338 to rotate, the purpose of driving the screw to rotate can be achieved. Here, the nut can be pivoted around another pivot axis relative to the traction bracket 331, thereby adapting to the change of the pitch angle of the traction bracket 331.

[0173] See also Figures 1 to 7 The present application also provides a method for preparing a double-sided composite reinforced rock wool board, which is used to produce the above-mentioned double-sided composite reinforced rock wool board. The method for preparing a double-sided composite reinforced rock wool board according to the present application comprises the following steps:

[0174] S0, after the rock wool fibers are fiberized and sizing, a cotton collecting device is used to collect the rock wool fibers into a primary felt through negative pressure adsorption, and then a pendulum is used to evenly distribute the rock wool fibers on the production line layer by layer, thereby obtaining an uncured rock wool base layer 510;

[0175] S1, uniformly applying an adhesive on the surface of the reinforcement surface layer 520;

[0176] S2, using an online curing and drying process, the two reinforced surface layers 520 are respectively bonded online to the two opposite surfaces of the uncured rock wool base layer 510 along the thickness direction. The bonded reinforced surface layer 520 and the rock wool base layer 510 are passed through a curing furnace 400, and dried and cured under the pressurization of the chain plate of the curing furnace 400 and the ventilation airflow, thereby obtaining a double-sided composite reinforced rock wool board.

[0177] According to the preparation method of the double-sided composite reinforced rock wool board of the present application, after applying the adhesive to the reinforced surface layer 520, the two reinforced surface layers 520 with the adhesive are respectively attached to the two opposite surfaces of the rock wool base layer 510 along the thickness direction, and then cured and formed in the curing furnace 400 to obtain the double-sided composite reinforced rock wool board. The preparation method of the double-sided composite reinforced rock wool board of the present application can be used to produce a double-sided composite reinforced rock wool board, and the production efficiency can be improved.

[0178] Optionally, in step S1, the process of applying the adhesive is one of spraying, coating and film transfer.

[0179] Optionally, in step S1, the binder is selected from at least one of phenolic resin, epoxy resin, polyurethane, acrylic resin, sugar-based resin, urea-formaldehyde resin and polyvinyl alcohol resin.

[0180] Optionally, in step S2, the curing oven 400 has at least two, for example four, temperature zones. Each temperature zone is sequentially arranged at the position from the entrance 400a to the exit of the curing oven 400. The temperature range of each temperature zone is 180 to 300°C. The main purpose of zoning the curing oven is to change the direction of the curing wind while keeping the curing time unchanged to achieve uniform curing of the product. In some application scenarios, the maximum temperature of each section of the curing oven can generally be set to a maximum of 280°C or even 300°C. The shorter the curing time, the higher the temperature required for the curing oven.

[0181] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "setting" appearing in this article can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0182] The present application has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present application to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope of protection claimed in the present application.

Claims

1. A double-sided composite reinforced rock wool board, characterized in that: The length of the double-sided composite reinforced rock wool board ranges from 600 mm to 2400 mm, the width of the double-sided composite reinforced rock wool board ranges from 600 mm to 2400 mm, the thickness of the double-sided composite reinforced rock wool board ranges from 20 mm to 200 mm, and the double-sided composite reinforced rock wool board includes: Rockwool substrate; and Two reinforcing surface layers, the two reinforcing surface layers are respectively bonded to two opposite surfaces of the rock wool base layer along the thickness direction by an adhesive, and the 90° peel strength between any one of the two reinforcing surface layers and the rock wool base layer ranges from 4N / 75mm to 30N / 75mm.

2. The double-sided composite reinforced rock wool board according to claim 1, characterized in that: The reinforcing surface layer is constructed of at least one of glass fiber woven fabric, coated non-woven felt, and uncoated non-woven felt.

3. The double-sided composite reinforced rock wool board according to claim 2, characterized in that: The reinforcing surface layer is made of glass fiber woven fabric. The glass fiber woven fabric has a gram weight range of 40g / m 2 ~1200g / m 2 Plain woven fabric; or The glass fiber woven fabric has a gram weight range of 40g / m 2 ~200g / m 2 of mesh cloth.

4. The double-sided composite reinforced rock wool board according to claim 2, characterized in that: The reinforcing surface layer is constructed as a coated nonwoven felt, wherein The weight range of the coated nonwoven felt is 100 g / m 2 ~400g / m 2 ; and / or The thickness of the coated nonwoven felt is in the range of 0.1 mm to 1.5 mm; and / or The tensile strength of the coated nonwoven felt is in the range of 100N / 50mm to 1000N / 50mm; and / or The calorific value of the coated nonwoven felt is in the range of 1MJ / kg to 10MJ / kg; and / or The air permeability of the coated nonwoven felt under a pressure of 100 Pa is in the range of 100 L / m 2 .s~10000L / m 2 .s; and / or The strength retention rate of the coated nonwoven felt after aging ranges from 50% to 100%.

5. The double-sided composite reinforced rock wool board according to claim 2, characterized in that: The reinforcing surface layer is constructed as a coated non-woven felt, the coating of which is made of resin and filler, the resin is acrylic resin, and the filler is made of calcium carbonate, cement, sand and masterbatch.

6. The double-sided composite reinforced rock wool board according to any one of claims 2 to 5, characterized in that: The coated nonwoven mat is configured as a coated nonwoven glass fiber mat.

7. The double-sided composite reinforced rock wool board according to claim 2, characterized in that: The reinforcing surface layer is constructed as a non-coated non-woven felt, wherein The weight range of the non-coated non-woven felt is 30 g / m 2 ~100g / m 2 ; and / or The thickness of the non-coated non-woven felt is in the range of 0.1 mm to 1.0 mm; and / or The tensile strength of the non-coated non-woven felt is in the range of 100N / 50mm to 1000N / 50mm; and / or The calorific value of the non-coated non-woven felt is in the range of 1MJ / kg to 10MJ / kg; and / or The strength retention rate of the non-coated non-woven felt after aging ranges from 50% to 100%.

8. The double-sided composite reinforced rock wool board according to claim 2, characterized in that: The reinforcing surface layer is constructed as a non-coated non-woven felt, wherein The non-coated non-woven felt is made of glass fiber and urea-formaldehyde resin; or The non-coated non-woven felt is made of glass fiber and acrylic resin.

9. The double-sided composite reinforced rock wool board according to any one of claims 2, 7 and 8, characterized in that: The non-coated non-woven felt is configured as a non-coated non-woven glass fiber felt.

10. The double-sided composite reinforced rock wool board according to any one of claims 1 to 5, 7 and 8, characterized in that: The density of the double-sided composite reinforced rock wool board is in the range of 60kg / m 3 ~220kg / m 3 .

11. The double-sided composite reinforced rock wool board according to any one of claims 1 to 5, 7 and 8, characterized in that: The weight of the resin bonding the rock wool base layer and any one of the two reinforced surface layers is in the range of 1 g / m 2 ~100g / m 2 ; or The weight of the resin bonding the rock wool base layer and the two reinforced surface layers is in the range of 1 g / m 2 ~100g / m 2 .

12. The double-sided composite reinforced rock wool board according to claim 1, characterized in that: The binder is made of at least one of phenolic resin, epoxy resin, polyurethane, acrylic resin, sugar-based resin, urea-formaldehyde resin, and polyvinyl alcohol resin.

13. The double-sided composite reinforced rock wool board according to any one of claims 1 to 5, 7 and 8, characterized in that: The rock wool base structure is a structure formed by pressing using a pleating process, and the pleating ratio ranges from 1.0 to 4.

0.

14. The double-sided composite reinforced rock wool board according to claim 13, characterized in that: The rock wool base layer has resin, and the resin content of the rock wool base layer ranges from 1.0% to 5.0%.

15. A production device for double-sided composite reinforced rock wool board, used for producing the double-sided composite reinforced rock wool board according to any one of claims 1 to 14, characterized in that: The production equipment of the double-sided composite reinforced rock wool board includes: A conveyor device for conveying a rock wool matrix; a first composite device, the first composite device being arranged corresponding to the upper part of the rock wool matrix located on the conveying device, the first composite device being used to apply glue to the reinforcing surface layer located above the rock wool matrix, and conveying the reinforcing surface layer to the upper part of the rock wool matrix, so that the reinforcing surface layer is attached to the upper part of the rock wool matrix; and A second composite device, the second composite device is arranged corresponding to the lower part of the rock wool matrix located at the conveying device, and the second composite device is used to apply glue to the reinforcing surface layer located below the rock wool matrix, and convey the reinforcing surface layer to the lower part of the rock wool matrix so that the reinforcing surface layer is attached to the lower part of the rock wool matrix.

16. The production equipment of double-sided composite reinforced rock wool board according to claim 15, characterized in that: The first composite device and the second composite device both include: an unwinding assembly, the unwinding assembly being used to unwind the rolled reinforcing surface layer; and A glue coating component is used to apply adhesive to the unrolled reinforcement surface layer.

17. The production equipment of double-sided composite reinforced rock wool board according to claim 16, characterized in that: The production equipment of the double-sided composite reinforced rock wool board also includes a curing furnace; The unwinding assembly and the glue coating assembly of the second composite device are both located below the curing furnace. The second composite device also includes a traction assembly, one end of which is arranged corresponding to the entrance of the curing furnace so that the reinforced surface layer coated with adhesive is close to the lower surface of the rock wool substrate, and the other end of the traction assembly is arranged corresponding to the glue coating assembly to receive the reinforced surface layer coated with adhesive.

18. The production equipment of double-sided composite reinforced rock wool board according to claim 17, characterized in that: The traction assembly comprises: Traction bracket; Two synchronous shafts, the synchronous shafts are rotatably connected to the traction bracket around their own axes, the two synchronous shafts are parallel to each other and cross the conveying direction of the rock wool matrix, and the two synchronous shafts are arranged vertically at intervals; Two pairs of sprockets, one pair of the two pairs of sprockets is respectively arranged at two ends of one of the two synchronous shafts, and the other pair of the two pairs of sprockets is respectively arranged at two ends of the other of the two synchronous shafts; a pair of chains, the pair of chains being spaced apart along the axial direction of the synchronization shaft, the chains being engaged with the sprocket; and A traction member is provided on each of the pair of chains. The traction members on the pair of chains are arranged opposite to each other and are used to be connected to the ends of the traction rope.

19. The production equipment of double-sided composite reinforced rock wool board according to claim 18, characterized in that: The traction assembly also includes: A cutting piece is located at an end of the traction bracket close to the entrance of the curing furnace, and the cutting piece has a cutting portion for cutting the traction rope, and the cutting portion is located in a spacing area between a pair of the traction members.

20. The production equipment of double-sided composite reinforced rock wool board according to claim 16, characterized in that: The unwinding assembly includes a core shaft, a transverse movable bracket, a longitudinal movable bracket and a frame. The transverse movable bracket is movably connected to the frame in the transverse direction, and the longitudinal movable bracket is movably connected to the transverse movable bracket in the longitudinal direction. The end of the core shaft is connected to the longitudinal movable bracket, and the outside of the core shaft is used for sleeved with the rolled reinforcing surface layer.

21. The production equipment of double-sided composite reinforced rock wool board according to claim 16, characterized in that: The unwinding assembly comprises a core shaft, a transverse movable bracket and a frame. The transverse movable bracket is movably connected to the frame in the transverse direction, and the core shaft is rotatably arranged around its own axis relative to the transverse movable bracket.

22. The production equipment of double-sided composite reinforced rock wool board according to claim 16, characterized in that: The unwinding assembly comprises a core shaft, a longitudinal movable bracket and a frame. The longitudinal movable bracket is movably connected to the frame along the longitudinal direction, and the core shaft is rotatably arranged around its own axis relative to the longitudinal movable bracket.

23. The production equipment of double-sided composite reinforced rock wool board according to any one of claims 20 to 22, characterized in that: The unwinding assembly comprises at least two mandrels, and the at least two mandrels are arranged at intervals along the conveying direction of the reinforcement surface layer.

24. The production equipment of double-sided composite reinforced rock wool board according to claim 16, characterized in that: The glue coating assembly includes a glue groove, a glue roller and a guide roller, the glue groove is used to accommodate adhesive, the glue roller is at least partially located inside the glue groove and is rotatable around its own axis relative to the glue groove, the glue roller is used to apply adhesive to the reinforced surface layer, the guide roller is rotatable around its own axis relative to the glue groove, and the glue roller and the guide roller are respectively used to contact two surfaces of the reinforced surface layer in different directions.

25. The production equipment of double-sided composite reinforced rock wool board according to claim 24, characterized in that: The glue coating assembly comprises a pair of guide rollers, and the pair of guide rollers are respectively located on both sides of the rubber roller along the conveying direction of the reinforcement surface layer to limit the contact area between the rubber roller and the reinforcement surface layer.

26. The production equipment of double-sided composite reinforced rock wool board according to claim 25, characterized in that: The guide roller is vertically movably arranged relative to the rubber roller to adjust the contact area between the guide roller and the reinforced surface layer.

27. The production equipment of double-sided composite reinforced rock wool board according to claim 16, characterized in that: The glue coating assembly includes a glue groove, an upper glue roller and a lower glue roller. The lower glue roller is at least partially located inside the glue groove and is rotatably arranged around its own axis relative to the glue groove. The upper glue roller is located above the lower glue roller. The upper glue roller contacts or approaches the surface of the lower glue roller. The lower glue roller is used to adhere the adhesive in the glue groove to the upper glue roller. The upper glue roller is used to apply the adhesive to the reinforced surface layer.

28. The production equipment of double-sided composite reinforced rock wool board according to claim 27, characterized in that: The upper rubber roller and the lower rubber roller are arranged to be movable relative to each other in the vertical direction.

29. A method for preparing a double-sided composite reinforced rock wool board, used for producing the double-sided composite reinforced rock wool board as claimed in any one of claims 1 to 14, characterized in that: The preparation method of the double-sided composite reinforced rock wool board comprises the following steps: S0, after the rock wool fibers are fiberized and sizing, a cotton collecting device is used to collect the rock wool fibers into a primary felt through negative pressure adsorption, and then the rock wool fibers are evenly distributed on the production line layer by layer through a pendulum, thereby obtaining an uncured rock wool base layer; S1, applying adhesive evenly on the surface of the reinforced surface layer; S2, using an online curing and drying process, the two reinforced surface layers are respectively bonded online to the two opposite surfaces of the uncured rock wool base layer along the thickness direction, and the bonded reinforced surface layers and the rock wool base layer are passed through a curing furnace, and dried and cured under the pressurization and ventilation airflow of the chain plate of the curing furnace, thereby obtaining a double-sided composite reinforced rock wool board.

30. The method for preparing the double-sided composite reinforced rock wool board according to claim 29, characterized in that: In step S1 , the process of applying the adhesive is one of spraying, coating and film transfer.

31. The method for preparing the double-sided composite reinforced rock wool board according to claim 29, characterized in that: In step S1, the binder is selected from at least one of phenolic resin, epoxy resin, polyurethane, acrylic resin, sugar-based resin, urea-formaldehyde resin and polyvinyl alcohol resin.

32. The method for preparing the double-sided composite reinforced rock wool board according to claim 29, characterized in that: In step S2, the curing furnace has at least two temperature zones, each of which is sequentially arranged from the entrance to the exit of the curing furnace, and the temperature of each temperature zone ranges from 180 to 300°C.

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