Environmentally friendly fireproof and waterproof gypsum board and production equipment thereof

Abstract

The invention relates to the field of gypsum boards, and specifically discloses an environment-friendly fireproof and waterproof gypsum board and production equipment thereof. The environment-friendly fireproof and waterproof gypsum board production equipment comprises: a cutting device, a stirring device and a pretreatment device. The cutting mechanism is used to chop glass fibers, the stirring mechanism is used to stir gypsum and various additives, the pretreatment device is located between the cutting device and the stirring device, and comprises a shell, a molding plate and a heater. The shell is provided with a feed inlet and a discharge outlet, a liquid medium is contained in the shell, a heater is arranged in the shell, and is used to heat the liquid medium. The molding plate is slidably fitted in the shell, and its upper surface is wavy. A driving mechanism is arranged in the shell, and the driving mechanism can drive the molding plate to move in the up and down directions. The environment-friendly fireproof and waterproof gypsum board and production equipment thereof can bend the glass fiber bundles by pretreating the glass fiber bundles, so as to prevent the glass fiber bundles from agglomerating during the stirring process.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum boards, and in particular to an environmentally friendly fireproof and waterproof gypsum board and production equipment thereof. Background Art

[0002] Gypsum board is a building material made of building gypsum as the main raw material. It has the characteristics of light weight and high strength, and has good processing performance in cutting, sawing, drilling, carving and bonding. It can meet various complex construction requirements and has good sound insulation and heat insulation properties. Gypsum board is non-toxic and harmless, does not contain harmful substances, and is an environmentally friendly and healthy building material. Therefore, it has a wide range of applications.

[0003] In the related technology, the production process of gypsum board mainly includes the steps of clinker preparation, batching, molding and conveying, drying and finished product packaging. Among them, clinker preparation is the process of calcining raw gypsum to obtain building gypsum; batching is the process of mixing building gypsum, additives, glass fiber and other raw materials in a certain proportion to make gypsum slurry; molding and conveying is to extrude the gypsum slurry into gypsum board of required specifications on the molding machine; drying is to dry the gypsum board in a dryer to a certain moisture content; finished product packaging is to trim the dried gypsum board to a fixed length, wrap the edges automatically, and then stack and pack.

[0004] A Chinese patent with authorization publication number CN220677496U discloses an anti-winding mixer, which includes a tank body, a stirring shaft is installed in the tank body, the stirring shaft is driven by a driving assembly, a shaft flange is provided at the lower end of the stirring shaft, a shaft sleeve is installed on the stirring shaft below the shaft flange, a pressure plate is installed on the lower end surface of the stirring shaft, at least two blades are fixed on the outer circle of the shaft sleeve, and the blades include a horizontal water-facing panel and a hydrofoil panel connected in one body.

[0005] The above patent solves the problem of glass fibers being entangled on the equipment by providing horizontal water-facing panels and hydrofoil panels. However, in the process of mixing building gypsum, additives and glass fibers, the glass fibers are easily entangled with each other to form clumps, which affects the quality of the finished gypsum board. Summary of the invention

[0006] The present invention provides an environmentally friendly fireproof and waterproof gypsum board and production equipment thereof, aiming to solve the problem in the related art that during the stirring process, glass fibers are easily entangled with each other to form agglomerates, thus affecting the quality of the finished gypsum board.

[0007] The environmentally friendly fireproof and waterproof gypsum board of the invention comprises: gypsum powder, hydrophobic starch, glass fiber, water and a processing aid.

[0008] The production equipment of the environmentally friendly fireproof and waterproof gypsum board of the present invention comprises: a cutting device, a stirring device and a pre-treatment device;

[0009] The cutting mechanism is used to cut the glass fibers into short pieces;

[0010] The stirring mechanism is used to stir gypsum and various additives;

[0011] The pretreatment device is located between the cutting device and the stirring device, and includes a shell, a molding plate and a heater. The shell is provided with a feed port and a discharge port. The shell is filled with a liquid medium. The heater is arranged in the shell and is used to heat the liquid medium. The molding plate is slidably fitted in the shell, and its upper surface is wavy. A driving mechanism is provided in the shell, and the driving mechanism can drive the molding plate to move in the up and down directions.

[0012] Preferably, the driving mechanism includes a driving member, a driving rod and a connecting member, the driving member is fixedly connected to the shell, the top end of the driving rod is connected to the driving member, the connecting member is connected to the bottom end of the driving rod, and the bottom end of the forming plate is fixedly connected to the connecting member.

[0013] Preferably, the connecting piece is rotatably connected to the driving rod via a torsion spring, the forming plate and the connecting piece can rotate relative to the driving rod, and the inner wall of the shell is provided with a limiting protrusion at the bottom end of the discharge port, and the limiting protrusion can stop at the top end of the forming plate.

[0014] Preferably, the molding plate is a hollow structure with a liquid storage tank inside, the molding plate has a first end and a second end, the first end and the second end are respectively located on both sides of the molding plate, the liquid storage tank is close to the first end, and the second end can stop against the limiting protrusion.

[0015] Preferably, a temperature sensor and a control board are provided in the shell, the temperature sensor is used to detect the temperature of the liquid medium, the temperature sensor is electrically connected to the control board, and the control board is electrically connected to the heater.

[0016] Preferably, the shell is provided with a guide plate at the feed inlet, the guide plate is located inside the shell and fixedly connected to the side wall of the shell, and the guide plate is an arc-shaped structure.

[0017] Preferably, the shell is provided with a discharge hopper at the discharge port, the discharge hopper is fixedly connected to the outer wall of the shell, the discharge hopper is inclined, and baffles are provided on both sides of the discharge hopper.

[0018] Preferably, the upper surface of the forming plate has a plurality of arc-shaped protrusions with different curvatures.

[0019] By adopting the above technical solution, the beneficial effects of the present invention are:

[0020] 1. According to the environmentally friendly fireproof and waterproof gypsum board and its production equipment of the present invention, adding glass fiber to the gypsum board can increase the fire resistance and tensile strength of the gypsum board, and adding hydrophobic starch to the gypsum board can increase the waterproof performance of the gypsum board.

[0021] 2. The cutting device cuts the glass fiber bundle into glass fiber segments, and the glass fiber segments enter the shell from the feed port. The molding plate can carry the glass fiber segments, and the glass fiber segments are immersed in the liquid medium. The heater heats the liquid medium so that the liquid medium is heated to the softening temperature of the glass fiber. When the glass fiber is softened, the glass fiber is distributed on the wave structure on the upper surface of the molding plate, and then the driving member drives the molding plate to move upward to separate the glass fiber from the liquid medium and cool it. The glass fiber segment after cooling and shaping is an arc segment. The driving member drives the molding plate to move to the discharge port and discharges the shell from the discharge port. The arc-shaped glass fiber segment is mixed with gypsum powder, hydrophobic starch, water and processing aids in the mixer. During the mixing process, since the glass fiber segment is an arc structure, the glass fiber segment has fluidity and continuity, and it tends to maintain its original bending state. The bending direction and angle of the arc structure often make it difficult for them to cross each other at an angle suitable for knotting. Even if the glass fiber segments accidentally intersect, it may be difficult to form a stable knot due to the inappropriate angle. At the same time, the contact area of ​​multiple glass fiber segments will decrease when they are close to each other, thereby preventing the glass fiber segments from knotting during the mixing process and preventing the knotting of the glass fiber segments from affecting the molding quality of the gypsum board. After mixing, the gypsum slurry will be moved to the molding machine for subsequent molding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of a preprocessing device according to an embodiment of the present invention.

[0023] Figure 2 4 is a cross-sectional view of a pretreatment device according to an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the cooperation between the forming plate and the driving mechanism according to an embodiment of the present invention.

[0025] Figure 4 2 is a cross-sectional view of a molded plate according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] 1. Shell; 2. Forming plate; 21. Upper plate; 22. Lower plate; 23. Liquid storage tank; 3. Heater; 41. Driving member; 42. Driving rod; 43. Connecting member; 5. Limiting protrusion; 6. Temperature sensor; 7. Feed inlet; 8. Guide plate; 9. Discharge port; 10. Discharge hopper; 11. Liquid inlet; 12. Liquid outlet. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] like Figures 1 to 4 As shown, the environmentally friendly fireproof and waterproof gypsum board of the present invention comprises: gypsum powder, starch, glass fiber, water and processing aids.

[0030] Specifically, the fire resistance and tensile strength of the environmentally friendly fireproof and waterproof gypsum board are improved by adding glass fibers, and the glass fibers are evenly distributed in the environmentally friendly fireproof and waterproof gypsum board. The waterproof ability of the environmentally friendly fireproof and waterproof gypsum board is improved by adding hydrophobic starch.

[0031] The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to the embodiment of the present invention comprises a cutting device, a pretreatment device and a stirring device. The cutting device is a cutting machine in conventional technology, which is used to cut the glass fiber bundle into a plurality of glass fiber segments of the same length. The stirring device is a stirring machine in conventional technology. A conveyor belt is provided between the cutting device and the pretreatment device and between the pretreatment device and the stirring device, wherein the cutting device, the stirring device and the conveyor belt are not shown in the figure.

[0032] like Figure 1 and Figure 2 As shown, the pretreatment device includes a shell 1, a molding plate 2 and a heater 3. The shell 1 is provided with a feed port 7 and a discharge port 9. The height of the feed port 7 is higher than the height of the discharge port 9. The glass fiber segment can enter the shell 1 from the feed port 7. The shell 1 contains a liquid medium, which can be water. The heater 3 is an electric heater in conventional technology, which can heat the liquid medium in the shell 1. The shell 1 is also provided with a liquid inlet 11 and a liquid outlet 12. The bottom of the shell 1 is an inclined structure. The liquid outlet 12 is located at the lowest point of the bottom of the shell 1. The liquid inlet 11 is used to input the liquid medium into the shell 1, and the liquid outlet 12 is used to discharge the liquid medium in the shell 1, so that the liquid medium can be replaced regularly to ensure that the liquid medium is always in a clean state.

[0033] like Figures 2 to 4As shown, the forming plate 2 is slidably matched in the housing 1, and a driving mechanism is provided in the housing 1, and the driving mechanism includes a driving member 41. A driving rod 42 and a connecting member 43. The driving member 41 is a hydraulic cylinder, which is fixedly connected in the housing 1 and is located at the top of the housing 1. A matching groove extending in the vertical direction is provided on the inner wall of the housing 1, and the driving rod 42 is located in the matching groove. The top end of the driving rod 42 is connected to the output end of the driving member 41, and the connecting member 43 is rotationally matched with the bottom end of the driving rod 42. The connecting member 43 and the driving rod 42 are connected by a torsion spring, and the top end of the connecting member 43 is fixedly connected to the bottom end of the forming plate 2. The forming plate 2 has a first end and a second end, the first end is the rear end of the forming plate 2, and the second end is the front end of the forming plate 2. The forming plate 2 is a hollow structure, which has an upper plate 21 and a lower plate 22. The upper plate 21 and the lower plate 22 are connected by a connecting plate. There are two connecting plates, which are respectively located at the front end and the rear end of the forming plate 2. The upper plate 21 is wavy and has a plurality of arc-shaped protrusions of different sizes. The bottom end of the lower plate 22 is fixedly connected to the connecting member 43 by bolts. The upper plate 21 and the lower plate 22 are both provided with a plurality of water holes distributed at intervals. The diameter of the water holes is smaller than the diameter of the glass fiber, so as to prevent the glass fiber from falling off the forming plate 2. A liquid storage tank 23 is also provided between the upper plate 21 and the lower plate 22. The liquid storage tank 23 is located at the rear end of the forming plate 2. A limiting protrusion 5 is also provided on the inner wall of the housing 1. The limiting protrusion 5 is located at the bottom of the feed port 7. The limiting protrusion 5 can stop against the top of the upper plate 21. The driving member 41 drives the driving rod 42 to move up and down, and the connecting member 43 moves up and down synchronously with the driving rod 42, and drives the forming plate 2 to move up and down. When the forming plate 2 moves upward to the limiting protrusion 5, the limiting protrusion 5 stops with the upper plate 21. At this time, the driving rod 42 continues to move upward. Due to the obstruction of the limiting protrusion 5, the front end of the forming plate 2 cannot move upward. The connecting member 43 overcomes the elastic force of the torsion spring and rotates relative to the driving rod 42. The forming plate 2 tilts, and the rear end of the forming plate 2 is higher than its front end.

[0034] like Figure 2 As shown, a temperature sensor 6 is also provided in the shell 1, and the temperature sensor 6 is located at the bottom of the shell 1. A control board is also provided in the shell 1. The temperature sensor 6 is electrically connected to the control board through wires, and the control board is electrically connected to the heater 3 through wires. The temperature sensor 6 is used to detect the temperature of the liquid medium and transmit an electrical signal to the control board. When the temperature is lower than the set temperature range, the control board controls the heater 3 to start and heat the liquid medium. When the liquid medium reaches the set temperature range, the control board turns off the heater 3.

[0035] like Figure 2As shown, a guide plate 8 is provided on the inner wall of the shell 1, the guide plate 8 is located above the feed port 7, and is fixedly connected to the inner wall of the shell 1. The guide plate 8 is an arc-shaped structure, and a guide channel is formed between the guide plate 8 and the inner wall of the shell 1. The guide channel has a downward opening. After the glass fiber segment enters the shell 1 from the feed port 7, it will move along the guide channel and fall from the bottom of the guide channel to the bottom of the shell 1. The guide plate 8 can limit the movement range of the glass fiber segment to prevent the glass fiber segment from floating directly out of the discharge port 9. A discharge hopper 10 is also provided at the discharge port 9. The discharge hopper 10 is tilted, and its top is fixedly connected to the outer wall of the shell 1. The top of the discharge hopper 10 is located at the bottom of the discharge port 9. Baffles are also provided on both sides of the discharge hopper 10, which can prevent the glass fiber from falling off.

[0036] According to the production equipment of the environment-friendly fireproof and waterproof gypsum board of the embodiment of the present invention, the cutting device cuts the glass fiber bundle into glass fiber segments of uniform length and feeds them into the shell 1 from the feed port 7 through the conveyor belt. The shell 1 is filled with a liquid medium. The molding plate 2 is located in the liquid medium and can carry the glass fiber segments so that the glass fiber segments are immersed in the liquid medium. Since the liquid medium is water, the liquid medium can remove dust and other impurities attached to the glass fiber segments during the immersion process. Then, the heater 3 is started to gradually heat the liquid medium to a set temperature. When the liquid medium reaches the set temperature, the glass fiber segments immersed in the liquid medium will soften. The softened glass fiber segments are distributed on the upper plate 21 of the molding plate 2. The softened glass fiber segments fit with the upper plate 21, so that the glass fiber segments are bent into arc structures with different curvatures. Then, the heater 3 is driven to heat the liquid medium to a set temperature. The moving member 41 drives the molding plate 2 to move upward, and the molding plate 2 moves upward until it is separated from the liquid medium, so that the glass fiber segment is cooled and formed. In the process of the molding plate 2 moving upward, the liquid storage tank 23 is filled with water, and then the driving member 41 drives the molding plate 2 to move upward, and the front end of the molding plate 2 is stopped with the limiting protrusion 5, and the driving member 41 continues to drive the driving rod 42 to move upward, and the driving rod 42 lifts the rear end of the molding plate 2 through the connecting member 43, so that the molding plate 2 tilts, and the arc-shaped glass fiber segment on the molding plate 2 slides out of the shell 1 from the discharge port 9 along the molding plate 2. At the same time, the water in the liquid storage tank 23 will pass through the water holes of the upper plate 21 along the side wall of the liquid storage tank 23, and then flow downward along the upper plate 21. The water in the liquid storage tank 23 can wash away the glass fiber segment adhering to the upper plate 21, preventing the glass fiber segment from remaining on the molding plate 2. After being discharged from the discharge port 9, the curved glass fiber segments slide along the discharge hopper 10 and fall onto the conveyor belt, which can transport the curved glass fiber segments to the stirring device. In the process of the stirring device stirring the gypsum powder, glass fiber segments, hydrophobic starch and other additives, since the glass fiber segments are arc structures with different curvatures, the glass fiber segments have fluidity and continuity, and they are more inclined to maintain the original bending state. The bending direction and angle of the arc structure often make it difficult for them to cross each other at an angle suitable for knotting. Even if the glass fiber segments accidentally intersect, it may be difficult to form a stable knot due to the inappropriate angle. At the same time, the contact area of ​​multiple glass fiber segments will decrease when they are close to each other, thereby preventing the glass fiber segments from knotting during the stirring process and preventing the glass fiber segments from knotting and affecting the quality of gypsum board molding.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A production device for an environmentally friendly fireproof and waterproof gypsum board, the environmentally friendly fireproof and waterproof gypsum board comprising: Plaster of Paris powder, hydrophobic starch, glass fiber, water and processing aids. The production equipment includes: A cutting device, the cutting device is used to cut the glass fibers into short pieces; A stirring device, wherein the stirring device is used to stir gypsum and various additives; It is characterized in that a pretreatment device is also provided, which is located between the cutting device and the stirring device, and includes a shell, a molding plate and a heater. The shell is provided with a feed port and a discharge port, and the shell is filled with a liquid medium. The heater is arranged in the shell and is used to heat the liquid medium. The molding plate is slidably fitted in the shell, and its upper surface is wavy. A driving mechanism is provided in the shell, and the driving mechanism can drive the molding plate to move in the up and down directions.

2. The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to claim 1 is characterized in that: The driving mechanism includes a driving member, a driving rod and a connecting member, the driving member is fixedly connected to the shell, the top end of the driving rod is connected to the driving member, the connecting member is connected to the bottom end of the driving rod, and the bottom end of the forming plate is fixedly connected to the connecting member.

3. The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to claim 2 is characterized in that: The connecting piece is rotatably connected to the driving rod via a torsion spring, the forming plate and the connecting piece can rotate relative to the driving rod, and the inner wall of the shell is provided with a limiting protrusion at the bottom end of the discharge port, and the limiting protrusion can stop at the top end of the forming plate.

4. The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to claim 3 is characterized in that: The molding plate is a hollow structure with a liquid storage tank inside. The molding plate has a first end and a second end. The first end and the second end are respectively located on both sides of the molding plate. The liquid storage tank is close to the first end, and the second end can stop against the limiting protrusion.

5. The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to claim 1 is characterized in that: A temperature sensor and a control board are arranged in the shell. The temperature sensor is used to detect the temperature of the liquid medium. The temperature sensor is electrically connected to the control board. The control board is electrically connected to the heater.

6. The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to claim 1 is characterized in that: The shell is provided with a guide plate at the feed inlet. The guide plate is located inside the shell and fixedly connected to the side wall of the shell. The guide plate is an arc-shaped structure.

7. The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to claim 1 is characterized in that: The shell is provided with a discharge hopper at the discharge port, the discharge hopper is fixedly connected to the outer wall of the shell, the discharge hopper is inclined, and baffles are provided on both sides of the discharge hopper.

8. The production equipment of the environmentally friendly fireproof and waterproof gypsum board according to claim 1 is characterized in that: The upper surface of the forming plate has a plurality of arc-shaped protrusions with different curvatures.

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