Method for increasing the flexibility of inorganic composite slabs

Abstract

The application discloses a method for enhancing the flexibility of an inorganic composite large plate, and comprises the following steps: changing the pulp preparation composition and the plate preparation process, wherein the pulp preparation composition comprises the following components: 20‰ of composite fiber, 20‰ of mesh cloth, 2‰ of glue powder, 2‰ of calcium formate, 3‰ of cellulose, 3‰ of alkali water agent, 2‰ of retarder, 1‰ of thixotropic enzyme, 50‰ of micro glass beads, and the rest of gypsum powder and water; the water-gypsum ratio is set to 70%, and the micro glass beads, two layers of mesh cloth and 30cm long cut glass fiber are added to the product, so that the product density is reduced, the structural strength of the product is increased, the calcium formate and the glue powder are appropriately added in the raw material formula, the strength and the flexibility of the product are increased, the bandage edges are arranged around the inorganic composite large plate, and a plurality of structural ribs are arranged on the upper end of the inorganic composite large plate, so that the inorganic composite large plate can be batched and jointed through the plurality of bandage edges, the whole wall surface is kept flat, and the structural ribs can form an air layer between the plates, so that the sound insulation effect is increased.

Description

Technical Field

[0001] This invention belongs to the field of flexibility enhancement technology for inorganic composite large panels, specifically a method for enhancing the flexibility of inorganic composite large panels. Background Technology

[0002] Inorganic composite large panels, also known as paperless gypsum board, are mainly used for partition walls and ceilings. They require high strength, high sound insulation coefficient, and good fire resistance. However, high strength inevitably leads to high hardness, which reduces their flexibility. When the surface area of ​​the panels is large (about 2.5 square meters), they are prone to deflection and deformation during stacking and transportation. In order to solve the problem of easily restoring a flat state after deformation and facilitating overall leveling after installation, it is necessary to increase their flexibility and improve existing materials and processes. Summary of the Invention

[0003] The purpose of this invention is to provide a method for enhancing the flexibility of inorganic composite large plates, so as to solve the problem mentioned in the background art that inorganic composite large plates with large surface areas are prone to deflection and deformation during stacking and transportation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a method for enhancing the flexibility of an inorganic composite large board, comprising: changing the pulp composition and the board making process;

[0005] The pulping composition is as follows: 20‰ composite fiber, 20‰ mesh cloth, 2‰ adhesive powder, 2‰ calcium formate, 3‰ cellulose, 3‰ alkaline water agent, 2‰ retarder, 1‰ thixotropic enzyme, 50‰ micronized glass beads, and the balance being gypsum powder and water;

[0006] The board manufacturing process is as follows:

[0007] Step 1: Pulping. The raw materials are dissolved in water according to the formula through the feeding system, and then put into the mixer for stirring to produce slurry. The prepared slurry is then stored in a slurry tank.

[0008] Step 2: Molding. The slurry is prepared into a wet board using the board-making system. A layer of mesh cloth is laid flat on the bottom of the mold using a cloth-laying machine, ensuring that it reaches all the edges and corners. Then, the slurry is poured in halfway through the board-making system. A fixed amount of 30cm long cut glass fiber is sprinkled in using a sprayer to ensure that it fully adheres to the slurry. The slurry is poured in a second time through the board-making system to fill the mold completely. Another layer of mesh cloth is then covered to ensure adhesion. The board is then rolled flat using a rolling rod and finally solidified into a wet board.

[0009] Step 3: Cutting and Rejection. The whole wet board is cut into small pieces by the cutting and screening system, and unqualified products are screened out. The solidified wet board is demolded and then cut. The cut wet board is then transferred to the inspection area for inspection.

[0010] Step 4: Drying. The wet boards are dried through the drying system. The qualified wet boards are then transferred to the microwave dryer for further drying. After drying, the boards are transferred out of the microwave dryer to produce the finished composite board.

[0011] Step 5: Collection and storage. Finished composite panels are collected and stored using a collection conveyor belt and a stacking platform with positioning and alignment devices.

[0012] Preferably, the feeding system consists of various powder storage, metering and feeding equipment, reinforcing fiber metering and feeding equipment, various liquid material storage and feeding equipment and premixer feeding equipment, which can accurately feed various raw materials into the premixer for mixing and homogenization, and then feed the mixed raw materials and quantitatively proportioned water into the mixer for stirring.

[0013] Preferably, the amount of gypsum used is calculated based on the required amount of the slab surface, and the amount used is the area multiplied by 8, with the unit of measurement being square meters and kilograms. The amount of water used is weighed according to the mass of gypsum and calculated according to the formula MW = Mg * (w / p), where MW is the amount of water added, with the unit of measurement being kilograms, Mg is the mass of building gypsum, with the unit of measurement being kilograms, and w / p is the water-gypsum ratio, which is 70%.

[0014] Preferably, the plate-making system consists of a cloth-laying machine, a material-spreading machine, upper and lower forming belts, a special forming machine, a conveying roller conveyor, and an edge cleaning device, etc., to inject, solidify, and convey the slurry, and to clean the scraped slurry. The mold is located inside the special forming machine.

[0015] Preferably, the slitting and screening system consists of a follow-up cutter, an accelerating belt for lateral conveying, a wet board rejection belt, and a flip plate. The whole wet board is cut into small pieces of different sizes according to the customer's needs, and is inspected in the wet board rejection belt area. Unqualified wet boards are rejected by the flip plate.

[0016] Preferably, the drying system consists of a distributor with a convergence function, an acceleration roller conveyor before board entry, a longitudinal airflow dryer, an acceleration track after board exit, a merging roller conveyor after board exit, and a board exiting machine, which removes moisture from the wet board and produces the finished product.

[0017] An inorganic composite panel structure includes a composite panel with a bandage edge around its perimeter and multiple crisscrossing structural ribs fixedly connected inside the composite panel.

[0018] Preferably, the multiple structural ribs arranged in a crisscross pattern are divided into multiple horizontal ribs and multiple vertical ribs according to their arrangement direction, and the horizontal ribs and vertical ribs are perpendicular to each other.

[0019] Preferably, the plurality of structural ribs are evenly distributed inside the composite panel, and the plurality of transverse ribs are parallel to the transverse edges of the composite panel, and the plurality of vertical ribs are parallel to the vertical edges of the composite panel.

[0020] Preferably, the height of the plurality of structural ribs is three millimeters, and they do not overlap each other and have a certain spacing.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. This invention reduces the density of the product and increases its structural strength by setting the water-to-solid ratio to 70%, adding a certain amount of micronized glass beads to the product, adding two layers of mesh cloth on both sides of the product and adding 30cm long chopped glass fiber filaments in the middle layer. At the same time, adding appropriate amounts of calcium formate and adhesive powder to the raw material formula increases the strength and toughness of the product, making it easy to restore a flat state after deformation, avoiding damage to the product during transportation and reducing transportation costs.

[0023] 2. This invention provides a bandage edge around the inorganic composite panel and multiple structural ribs inside the inorganic composite panel. This allows the inorganic composite panel to be patched through multiple bandage edges, keeping the entire wall surface flat. The structural ribs can also form an air layer between the panels, increasing the sound insulation effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the process of the present invention;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the composite plate of the present invention.

[0026] In the diagram: 1. Composite panel; 2. Bandage edge; 3. Structural reinforcement. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] like Figures 1 to 2 As shown, this embodiment of the invention provides a method for enhancing the flexibility of inorganic composite large boards, including: changing the pulp composition and board making process;

[0030] The pulping composition is as follows: 20‰ composite fiber, 20‰ mesh cloth, 2‰ adhesive powder, 2‰ calcium formate, 3‰ cellulose, 3‰ alkaline water agent, 2‰ retarder, 1‰ thixotropic enzyme, 50‰ micronized glass beads, and the balance being gypsum powder and water;

[0031] The board manufacturing process is as follows:

[0032] Step 1: Pulping. The raw materials are dissolved in water according to the formula through the feeding system, and then put into the mixer for stirring to produce slurry. The prepared slurry is then stored in a slurry tank.

[0033] Step 2: Molding. The slurry is prepared into a wet board using the board-making system. A layer of mesh cloth is laid flat on the bottom of the mold using a cloth-laying machine, ensuring that it reaches all the edges and corners. Then, the slurry is poured in halfway through the board-making system. A fixed amount of 30cm long cut glass fiber is sprinkled in using a sprayer to ensure that it fully adheres to the slurry. The slurry is poured in a second time through the board-making system to fill the mold completely. Another layer of mesh cloth is then covered to ensure adhesion. The board is then rolled flat using a rolling rod and finally solidified into a wet board.

[0034] Step 3: Cutting and Rejection. The whole wet board is cut into small pieces by the cutting and screening system, and unqualified products are screened out. The solidified wet board is demolded and then cut. The cut wet board is then transferred to the inspection area for inspection. If the wet board passes the quality inspection, it is transferred to the next process.

[0035] Step 4: Drying. The wet boards are dried through the drying system. The qualified wet boards are then transferred to the microwave dryer for further drying. After drying, the boards are transferred out of the microwave dryer to produce the finished composite board.

[0036] Step 5: Collection and storage. Finished composite panels are collected and stored using a collection conveyor belt and a stacking platform with positioning and alignment devices.

[0037] The feeding system consists of various powder storage, metering and feeding equipment, reinforcing fiber metering and feeding equipment, various liquid material storage and feeding equipment, and premixer feeding equipment. It can accurately feed various raw materials into the premixer for mixing and homogenization. Then, the mixed raw materials and quantitatively proportioned water are added into the mixer for stirring. The mixture is fully stirred in room temperature slurry water at a stirring speed of 60 r / min for 120 seconds to dissolve the raw materials.

[0038] The amount of gypsum used is calculated based on the required amount of the slab surface. The amount used is the area multiplied by 8, and the units of measurement are square meters and kilograms. The amount of water is weighed according to the mass of gypsum and calculated according to the formula MW = Mg * (w / p), where MW is the amount of water added, and the unit of measurement is kilograms; Mg is the mass of building gypsum, and the unit of measurement is kilograms; w / p is the water-gypsum ratio, and the water-gypsum ratio is 70%. The original water-gypsum ratio was 65%, and it has now been adjusted to 70%, which can relatively increase the porosity of the product and relatively enhance its flexibility. The original product stirring speed was 180 r / min and the stirring time was 120 seconds, which has now been changed to a stirring speed of 120 r / min and a stirring time of 180 seconds to increase the consistency and fluidity of the slurry, thereby increasing the flexibility of the product.

[0039] The board-making system consists of a fabric spreading machine, a material spraying machine, upper and lower forming belts, a special forming machine, conveyor rollers, and an edge cleaning device. It injects, solidifies, and conveys the slurry, and cleans the scraped slurry. The mold is located inside the special forming machine, enabling continuous production with high efficiency, and preventing the scraped slurry from affecting the quality of subsequent products.

[0040] The slitting and screening system consists of a follow-up cutter, a lateral conveyor belt, a wet board rejection belt, and a flip plate. It cuts the whole wet board into small pieces of different sizes according to the customer's needs, and conducts inspection in the wet board rejection belt area. Unqualified wet boards are rejected by the flip plate, which can meet the requirements of different customers and prevent unqualified products from entering the market.

[0041] The drying system consists of a distributor with a convergence function, an acceleration roller conveyor before board entry, a longitudinal airflow dryer, an acceleration track after board exit, a merging roller conveyor after board exit, and a board exiting machine. It removes moisture from the wet boards and produces finished products. By baking for a specific time, the degree of drying of the products can be controlled. Different baking times can be set according to different uses to meet the needs of different customers.

[0042] One type of inorganic composite large panel structure is characterized by: including a composite panel 1, with bandage edges 2 around the perimeter of the composite panel 1, and multiple crisscrossing structural ribs 3 fixedly connected inside the composite panel 1.

[0043] Among them, the multiple structural reinforcement bars 3 arranged in a crisscross pattern are divided into multiple horizontal reinforcement bars and multiple vertical reinforcement bars according to the setting direction, and the horizontal reinforcement bars and the vertical reinforcement bars are perpendicular to each other.

[0044] Among them, multiple structural ribs 3 are evenly distributed inside the composite plate 1, and multiple transverse ribs are parallel to the transverse edge of the composite plate 1, and multiple vertical ribs are parallel to the vertical edge of the composite plate 1.

[0045] Among them, the height of multiple structural bars 3 is three millimeters, the three adjacent structural bars (3) are set in different directions, and they do not overlap with each other and have a certain interval.

[0046] Example 2

[0047] A method for enhancing the flexibility of inorganic composite large-format boards includes: changing the pulp composition and board manufacturing process;

[0048] The pulping composition is as follows: 20‰ composite fiber, 20‰ mesh cloth, 2‰ adhesive powder, 2‰ calcium formate, 3‰ cellulose, 3‰ alkaline water agent, 2‰ retarder, 1‰ thixotropic enzyme, 50‰ micronized glass beads, and the balance being gypsum powder and water;

[0049] The board manufacturing process is as follows:

[0050] Step 1: Pulping. The raw materials are dissolved in water according to the formula through the feeding system, and then put into the mixer for stirring to produce slurry. The prepared slurry is then stored in a slurry tank.

[0051] Step 2: Molding. The slurry is prepared into a wet board using the board-making system. A layer of mesh cloth is laid flat on the bottom of the mold using a cloth-laying machine, ensuring that it reaches all the edges and corners. Then, the slurry is poured in halfway through the board-making system. A fixed amount of 30cm long cut glass fiber is sprinkled in using a sprayer to ensure that it fully adheres to the slurry. The slurry is poured in a second time through the board-making system to fill the mold completely. Another layer of mesh cloth is then covered to ensure adhesion. The board is then rolled flat using a rolling rod and finally solidified into a wet board.

[0052] Step 3: Cutting and Rejection. The whole wet board is cut into smaller pieces by a cutting and screening system, and unqualified products are screened out. The solidified wet board is demolded and then cut. The cut wet board is then transferred to the inspection area for inspection. If the quality of the wet board is not up to standard, it is transferred and rejected, and the next wet board is inspected.

[0053] Step 4: Drying. The wet boards are dried through the drying system. The qualified wet boards are then transferred to the microwave dryer for further drying. After drying, the boards are transferred out of the microwave dryer to produce the finished composite board.

[0054] Step 5: Collection and storage. Finished composite panels are collected and stored using a collection conveyor belt and a stacking platform with positioning and alignment devices.

[0055] The feeding system consists of various powder storage, metering and feeding equipment, reinforcing fiber metering and feeding equipment, various liquid material storage and feeding equipment and premixer feeding equipment. It can accurately feed various raw materials into the premixer for mixing and homogenization, and then feed the mixed raw materials and quantitatively proportioned water into the mixer for stirring.

[0056] The amount of gypsum used is calculated based on the required amount of the slab surface. The amount used is the area multiplied by 8, and the units of measurement are square meters and kilograms. The amount of water is weighed according to the mass of gypsum and calculated according to the formula MW=Mg*(w / p), where MW is the amount of water added, and the unit of measurement is kilograms; Mg is the mass of building gypsum, and the unit of measurement is kilograms; w / p is the water-gypsum ratio, and the water-gypsum ratio is 70%.

[0057] The plate-making system consists of a cloth-laying machine, a material-spraying machine, upper and lower forming belts, a special forming machine, a conveyor roller conveyor, and an edge cleaning device. It injects, solidifies, and conveys the slurry, and cleans the scraped slurry. The mold is located inside the special forming machine.

[0058] The slitting and screening system consists of a follow-up cutter, a lateral conveyor belt, a wet board rejection belt, and a flip plate. It cuts the whole wet board into small pieces of different sizes according to the customer's needs, and performs inspection in the wet board rejection belt area. The unqualified wet boards are rejected by the flip plate.

[0059] The drying system consists of a distributor with a convergence function, an acceleration roller conveyor before board entry, a longitudinal airflow dryer, an acceleration track after board exit, a merging roller conveyor after board exit, and a board exiting machine. It removes moisture from the wet board and produces the finished product.

[0060] One type of inorganic composite large panel structure is characterized by: including a composite panel 1, with bandage edges 2 around the perimeter of the composite panel 1, and multiple crisscrossing structural ribs 3 fixedly connected inside the composite panel 1.

[0061] Among them, the multiple structural reinforcement bars 3 arranged in a crisscross pattern are divided into multiple horizontal reinforcement bars and multiple vertical reinforcement bars according to the setting direction, and the horizontal reinforcement bars and the vertical reinforcement bars are perpendicular to each other.

[0062] Among them, multiple structural ribs 3 are evenly distributed inside the composite plate 1, and multiple transverse ribs are parallel to the transverse edge of the composite plate 1, and multiple vertical ribs are parallel to the vertical edge of the composite plate 1.

[0063] Among them, the height of multiple structural bars 3 is three millimeters, the three adjacent structural bars (3) are set in different directions and do not overlap with each other, and have a certain interval.

[0064] 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.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for enhancing the flexibility of an inorganic composite large plate, characterized in that, include: Change the pulp composition and board-making process; The pulping composition is as follows: 20‰ composite fiber, 20‰ mesh cloth, 2‰ adhesive powder, 2‰ calcium formate, 3‰ cellulose, 3‰ alkaline water agent, 2‰ retarder, 1‰ thixotropic enzyme, 50‰ micronized glass beads, and the balance is gypsum powder and water with a water-to-gypsum ratio of 70%. The board manufacturing process is as follows: Step 1: Pulping. The raw materials are dissolved in water according to the formula through the feeding system, and then put into the mixer for stirring to produce slurry. The prepared slurry is then stored in a slurry tank. Step 2: Molding. The slurry is prepared into a wet board using the board-making system. A layer of mesh cloth is laid flat on the bottom of the mold using a cloth-laying machine, ensuring that it reaches all the edges and corners. Then, the slurry is poured in halfway through the board-making system. A fixed amount of 30cm long cut glass fiber is sprinkled in using a sprayer to ensure that it fully adheres to the slurry. The slurry is poured in a second time through the board-making system to fill the mold completely. Another layer of mesh cloth is then covered to ensure adhesion. The board is then rolled flat using a rolling rod and finally solidified into a wet board. Step 3: Cutting and Rejection. The whole wet board is cut into small pieces by the cutting and screening system, and unqualified products are screened out. The solidified wet board is demolded and then cut. The cut wet board is then transferred to the inspection area for inspection. Step 4: Drying. The wet boards are dried through the drying system. The qualified wet boards are then transferred to the microwave dryer for further drying. After drying, the boards are transferred out of the microwave dryer to produce the finished composite board. Step 5: Collection and storage. Finished composite panels are collected and stored using a collection conveyor belt and a stacking platform with positioning and alignment devices.

2. The method for enhancing the flexibility of an inorganic composite large plate according to claim 1, characterized in that: The feeding system consists of various powder storage, metering and feeding equipment, reinforcing fiber metering and feeding equipment, various liquid material storage and feeding equipment and premixer feeding equipment. It can accurately feed various raw materials into the premixer for mixing and homogenization, and then feed the mixed raw materials and quantitatively proportioned water into the mixer for stirring.

3. The method for enhancing the flexibility of an inorganic composite large plate according to claim 1, characterized in that: The amount of gypsum used is calculated based on the required amount of the slab surface. The amount used is the area multiplied by 8, and the units of measurement are square meters and kilograms. The amount of water used is weighed according to the mass of gypsum and calculated according to the formula MW = Mg * (w / p), where MW is the amount of water added, and the unit of measurement is kilograms; Mg is the mass of building gypsum, and the unit of measurement is kilograms; and w / p is the water-gypsum ratio.

4. The method for enhancing the flexibility of an inorganic composite large plate according to claim 1, characterized in that: The plate-making system consists of a cloth-laying machine, a material-spreading machine, upper and lower forming belts, a special forming machine, a conveyor roller conveyor, and an edge cleaning device. It injects, solidifies, and conveys the slurry, and cleans the scraped slurry. The mold is located inside the special forming machine.

5. The method for enhancing the flexibility of an inorganic composite large plate according to claim 1, characterized in that: The slitting and screening system consists of a follow-up cutter, an accelerating belt for lateral conveying, a wet board rejection belt, and a flip plate. It cuts the whole wet board into small pieces of different sizes according to the customer's needs, and performs inspection in the wet board rejection belt area. Unqualified wet boards are rejected by the flip plate.

6. The method for enhancing the flexibility of an inorganic composite large plate according to claim 1, characterized in that: The drying system consists of a distributor with a convergence function, an acceleration roller conveyor before board entry, a longitudinal airflow dryer, an acceleration track after board exit, a merging roller conveyor after board exit, and a board exiting machine. It removes moisture from the wet boards and produces finished products.

7. An inorganic composite large-panel structure manufactured according to any one of claims 1-6, characterized in that: It includes a composite board (1), which has bandage edges (2) around its perimeter. The composite board (1) has multiple crisscrossing structural ribs (3) fixedly connected inside, and also has sound insulation function with a certain interval.

8. The inorganic composite large-plate structure according to claim 7, characterized in that: The multiple structural reinforcements (3) arranged in a crisscross pattern are divided into multiple horizontal reinforcements and multiple vertical reinforcements according to the direction of arrangement, and the horizontal reinforcements and vertical reinforcements are perpendicular to each other.

9. An inorganic composite large-plate structure according to claim 7, characterized in that: Multiple structural ribs (3) are evenly distributed inside the composite plate (1), and multiple transverse ribs are parallel to the transverse side of the composite plate (1), and multiple vertical ribs are parallel to the vertical side of the composite plate (1).

10. An inorganic composite large-plate structure according to claim 9, characterized in that: The height of the multiple structural ribs (3) is three millimeters. The three adjacent structural ribs (3) are arranged in different directions, do not overlap each other, and have a certain interval.

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