Vacuum high-speed dispersion pulping equipment and process for fireproof coating

Abstract

The invention relates to the technical field of dispersing devices, in particular to vacuum high-speed dispersing pulping equipment and process for fireproof paints.The vacuum high-speed dispersing pulping equipment comprises a tank, the lower surface of the tank is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating column, and the outer surface of the rotating column is rotationally connected with a sealing cover; a transmission gear is fixedly connected to the outer surface of the rotating column located in the sealing cover, and driven gears are symmetrically arranged on the upper surface of the transmission gear; the device has the beneficial effects that efficient and synchronous stirring of the stirring rods is ensured through a stable gear transmission structure, the stirring efficiency is improved, a rotary filter plate is matched with components such as an abutting block and a matching block to generate reciprocating vibration, a fixed grinding rod is combined for auxiliary grinding, undispersed particles are effectively separated, the fineness of slurry is improved, and bubbles are prevented from being generated in a vacuum environment; the material circulation design ensures uniform dispersion, the pulping efficiency and the stirring quality are integrally and remarkably optimized, and the quality of produced pulp is stable.

Description

Technical Field

[0001] This invention patent relates to the field of dispersion device technology, specifically a vacuum high-speed dispersion pulping equipment and process for fire-retardant coatings. Background Technology

[0002] Fire-retardant coatings are applied to the surface of materials to improve their fire resistance, slow the spread of flames, or prevent combustion for a certain period of time. They are also called flame-retardant coatings. Fire-retardant coatings are special coatings applied to the surface of combustible substrates to reduce the flammability of the coated material, inhibit the rapid spread of fire, and improve the fire resistance limit of the coated material. They are applied to the surface of combustible substrates to change the surface combustion characteristics of the material and inhibit the rapid spread of fire, or applied to building components to improve the fire resistance limit of the components.

[0003] Chinese utility model patent CN217449697U discloses a dispersion device for producing fire-retardant coatings, comprising a vessel body, a feeding port, a dispersion chamber, a screening chamber, a grinding chamber, a stirring shaft, a grinding roller, a grinding space, and a stirring paddle. The screening chamber is equipped with a sieve plate, which has through holes for the stirring shaft to pass through freely. The stirring shaft is driven to rotate by a motor. This utility model enables the screening of large particles in the raw materials by using the sieve plate, followed by further screening by the grinding roller. This allows the raw materials to be ground while being dispersed and mixed, reducing the particle size and resulting in a higher quality fire-retardant coating. Additionally, an electric actuator drives a piston to slide within the sliding chamber, agitating the raw materials in the grinding chamber.

[0004] However, this device relies solely on stirring paddles and grinding rollers for stirring, lacking a stable and synchronized transmission structure. As a result, the stirring efficiency is low, and it is difficult to efficiently separate undispersed particles. The slurry is not fine enough. Although there is material circulation, the dispersion uniformity is poor. The overall slurry production efficiency and stirring quality are only slightly improved, making it difficult to ensure stable slurry quality.

[0005] Invention Patent Content The purpose of this invention is to provide a vacuum high-speed dispersion pulping equipment and process for fire-retardant coatings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this invention provides the following technical solution: a vacuum high-speed dispersion slurry preparation device and process for fire-retardant coatings, comprising: a tank body, a drive motor fixedly connected to the lower surface of the tank body, and a rotating column fixedly connected to the output end of the drive motor; a sealing cover rotatably connected to the outer surface of the rotating column, and a transmission gear fixedly connected to the outer surface of the rotating column inside the sealing cover; driven gears symmetrically arranged on the upper surface of the transmission gears; an extension rod fixedly connected to the side wall of the driven gears, and a stirring rod fixedly connected to the outer surface of the extension rod; clamping gears meshing between adjacent driven gears, and the clamping gears rotatably connected to the outer surface of the rotating column; the rotating column... A limiting bearing is fixedly connected to the outer surface. The lower surface of the limiting bearing abuts against a first clamping spring, and the lower surface of the first clamping spring abuts against a clamping gear. A rotating filter plate is fixedly connected to the outer surface of the rotating column. A sealing sleeve is rotatably connected to the lower surface of the rotating filter plate, and the sealing sleeve is fixedly connected to the inner wall of the tank. A movable groove is opened on the inner wall of the sealing sleeve, and a second clamping spring is sleeved on the inner surface of the movable groove. One side of the second clamping spring abuts against a contact plate, and a connecting column is fixedly connected to one side of the contact plate. A mating block is fixedly connected to one side of the connecting column. The outer surface of the mating block contacts the contact block, and the contact block is fixedly connected to the lower surface of the rotating filter plate.

[0007] Preferably, the extension rod extends to the outer surface of the sealing cover, the driven gear is located between the transmission gear and the clamping gear, the cross-section of the mating block is crescent-shaped, and the cross-section of the contact block is a combination of continuous arc and rectangle.

[0008] Preferably, the contact plate is located inside the movable groove, and there are several mating blocks, with the number of contact blocks and mating blocks corresponding to each other.

[0009] Preferably, the mating blocks are centrally symmetrically distributed on the inner wall of the sealing sleeve, and the second tightening spring and the inner wall of the tank are fixedly connected to three fixed grinding rods, which are centrally symmetrically distributed on the upper surface of the rotating filter plate.

[0010] Preferably, a connecting pipe and a discharge pipe are fixedly connected to both sides of the outer surface of the tank, and a discharge vacuum solenoid valve is provided on the outer surface of the discharge pipe, and a pumping pump is provided in the middle of the outer surface of the connecting pipe.

[0011] Preferably, the sealing cover and the fixed grinding rod are both located between the openings at both ends of the connecting pipe, and the feed pipe and vacuum pump are fixedly connected to the upper surface of the tank.

[0012] Preferably, a feed vacuum solenoid valve is provided on the outer surface of the feed pipe.

[0013] A vacuum high-speed dispersion pulping process for fire-retardant coatings, using a vacuum high-speed dispersion pulping device for fire-retardant coatings as described in any one of claims 1-7, involves closing the inlet vacuum solenoid valve and the outlet vacuum solenoid valve, starting a vacuum pump to evacuate the inside of the tank, and after reaching a preset vacuum level, opening the inlet vacuum solenoid valve and adding fire-retardant coating raw materials into the tank through the inlet pipe. The inlet vacuum solenoid valve is then closed to maintain the vacuum state of the tank. A drive motor is then started to drive the rotating column and transmission gear to rotate. Through the meshing transmission gear with the driven gear and clamping gear, the extension rod and stirring rod are driven to rotate at high speed to stir and disperse the raw materials.

[0014] The rotating column drives the rotating filter plate to rotate, and the contact block and the mating block come into contact and squeeze. With the extension and retraction of the second tightening spring, the rotating filter plate reciprocates. When the raw material is filtered by the rotating filter plate, the fixed grinding rod assists in grinding the raw material to improve the dispersion uniformity. The pump is started and the material in the upper part of the tank is pumped to the lower part through the connecting pipe to realize material circulation and further improve the homogenization effect of pulping. After pulping is completed, the drive motor and vacuum pump are turned off, the discharge vacuum solenoid valve is opened, and the finished fireproof coating slurry is discharged through the discharge pipe.

[0015] Compared with the prior art, the beneficial effects of this invention patent are: This invention patent uses a stable gear transmission structure to ensure efficient and synchronous stirring of the stirring rod, thereby improving stirring efficiency. The rotating filter plate, in conjunction with the contact block, mating block, and other components, generates reciprocating vibration. Combined with the fixed grinding rod to assist grinding, it effectively separates undispersed particles, improves the fineness of the slurry, and the vacuum environment prevents the generation of air bubbles. The material circulation design ensures uniform dispersion. Overall, it significantly optimizes the pulping efficiency and stirring quality, resulting in stable slurry quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of the present invention. Figure 2 This is a schematic cross-sectional view of the entire invention patent; Figure 3 This invention patent Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This invention patent Figure 3 Enlarged schematic diagram of the structure at point B Figure 5 This is a schematic diagram of the transmission gear structure of the present invention. Figure 6 This is a schematic diagram of the sealing sleeve structure of the present invention.

[0017] In the diagram: 1. Tank body; 2. Drive motor; 3. Discharge pipe; 4. Discharge vacuum solenoid valve; 5. Feed vacuum solenoid valve; 6. Vacuum pump; 7. Connecting pipe; 8. Pumping pump; 9. Rotating column; 10. Sealing cover; 11. Transmission gear; 12. Clamping gear; 13. First clamping spring; 14. Limit bearing; 15. Driven gear; 16. Extension rod; 17. Stirring rod; 18. Rotating filter plate; 19. Fixed grinding rod; 20. Sealing sleeve; 21. Movable groove; 22. Second clamping spring; 23. Contact plate; 24. Connecting column; 25. Mating block; 26. Feed pipe; 27. Contact block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention patent clear and complete, the embodiments of this invention patent are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this invention patent, and are merely used to explain the embodiments of this invention patent, and are not intended to limit the embodiments of this invention patent. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention patent.

[0019] The present application will be further described in detail below with reference to all the accompanying drawings.

[0020] Example 1: Reference Figures 1 to 6 A vacuum high-speed dispersion slurry preparation device and process for fire-retardant coatings includes: a tank body 1, a drive motor 2 fixedly connected to the lower surface of the tank body 1, and a rotating column 9 fixedly connected to the output end of the drive motor 2, providing stable power output to the rotating column 9 and realizing direct power transmission from the drive motor 2 to the rotating column 9; a sealing cover 10 rotatably connected to the outer surface of the rotating column 9, and a transmission gear 11 fixedly connected to the outer surface of the rotating column 9 inside the sealing cover 10; the sealing cover 10 forms a sealed protection for the internal transmission gear 11, driven gear 15, and other transmission components, preventing... The entry of the coating material affects the transmission accuracy and provides a stable mounting base for the transmission gear 11. The upper surface of the transmission gear 11 is symmetrically provided with driven gears 15 to realize the synchronous transmission of power from the transmission gear 11 to the symmetrically distributed driven gears 15, ensuring the symmetrical operation of the subsequent stirring components. An extension rod 16 is fixedly connected to the side wall of the driven gear 15, and an agitator 17 is fixedly connected to the outer surface of the extension rod 16. The rotation of the driven gear 15 is converted into the rotation of the extension rod 16 and the agitator 17. The agitator 17 is used to stir and disperse the fireproof coating material in the tank 1.

[0021] Reference Figures 3 to 6Each of the two adjacent driven gears 15 is meshed with a clamping gear 12, and the clamping gear 12 is rotatably connected to the outer surface of the rotating column 9. The clamping gear 12 forms a limiting clamp on the adjacent driven gear 15, ensuring the stability of the meshing between the driven gear 15 and the transmission gear 11 and preventing deviation during transmission. The outer surface of the rotating column 9 is fixedly connected to a limit bearing 14, which provides a stable upper support point for the first clamping spring 13 without affecting the normal rotation of the rotating column 9. The lower surface of the limit bearing 14 abuts against the first clamping spring 13, and the lower surface of the first clamping spring 13 abuts against the clamping gear 12. Through the elastic clamping action of the first clamping spring 13, the clamping gear 12 is always kept in a tight meshing state with the driven gear 15, improving the transmission stability. The outer surface of the rotating column 9 is fixedly connected to a rotating filter plate 18, which rotates synchronously with the rotating column 9 to filter the paint raw materials during the dispersion process and separate the insufficiently dispersed particles.

[0022] A sealing sleeve 20 is rotatably connected to the lower surface of the rotating filter plate 18, and the sealing sleeve 20 is fixedly connected to the inner wall of the tank 1, thereby achieving a seal between the rotating filter plate 18 and the inner wall of the tank 1 to prevent the coating material from leaking out from the gaps, while not hindering the rotation of the rotating filter plate 18. A movable groove 21 is provided on the inner wall of the sealing sleeve 20, and a second tightening spring 22 is fitted on the inner surface of the movable groove 21, providing stable installation and movement space for the second tightening spring 22 and the contact plate 23. One side of the second tightening spring 22 abuts against the contact plate 23, and one side of the contact plate 23 is fixedly connected to... The connecting column 24 is pushed by the elastic force of the second tightening spring 22 to push the abutment plate 23, thereby driving the connecting column 24 to move synchronously. A mating block 25 is fixedly connected to one side of the connecting column 24 to realize the power transmission between the connecting column 24 and the mating block 25, so that the mating block 25 moves together with the connecting column 24. The outer surface of the mating block 25 contacts the abutment block 27, and the abutment block 27 is fixedly connected to the lower surface of the rotating filter plate 18. Through the contact and compression between the mating block 25 and the abutment block 27, the cross-sectional shape of the two is combined to realize the reciprocating vibration of the rotating filter plate 18, thereby improving the filtration effect.

[0023] The extension rod 16 extends to the outer surface of the sealing cover 10, allowing the stirring rod 17 on the extension rod 16 to extend into the raw material inside the tank 1 to achieve stirring and dispersion. The driven gear 15 is located between the transmission gear 11 and the clamping gear 12, ensuring that the transmission gear 11 can smoothly drive the driven gear 15 to rotate. At the same time, the clamping gear 12 can accurately limit and clamp the driven gear 15. The cross-section of the mating block 25 is crescent-shaped, which facilitates smooth contact and compression with the contact block 27, reducing the frictional resistance when the two move relative to each other. The cross-section of the contact block 27 is a combination of continuous arc and rectangle, which cooperates with the crescent-shaped mating block 25 to form periodic compression and release during the rotation of the rotating filter plate 18, thereby driving the rotating filter plate 18 to generate reciprocating vibration.

[0024] The contact plate 23 is located inside the movable groove 21, allowing it to move smoothly within the groove and preventing offset or jamming during movement. Several mating blocks 25 are present, and the number of contact blocks 27 corresponds to the number of mating blocks 25, ensuring uniform force distribution and stable vibration at all positions of the rotating filter plate 18. The mating blocks 25 are centrally symmetrically distributed on the inner wall of the sealing sleeve 20, further enhancing the balance of the rotating filter plate 18 during vibration and preventing vibration instability caused by unilateral imbalance. The second tightening spring 22 provides continuous elastic tightening force to the contact plate 23 and mating blocks 25, ensuring that the mating blocks 25 and contact blocks 27 always maintain close contact. Three fixed grinding rods 19 are fixedly connected to the inner wall of the tank 1, and are centrally symmetrically distributed on the upper surface of the rotating filter plate 18. During the rotation of the raw material by the rotating filter plate 18, the fixed grinding rods 19 assist in grinding the particles in the raw material, working in conjunction with the stirring rod 17 to improve dispersion uniformity.

[0025] Reference Figures 1 to 2 and Figure 4 A connecting pipe 7 and a discharge pipe 3 are fixedly connected to both sides of the outer surface of the tank body 1, and a discharge vacuum solenoid valve 4 is provided on the outer surface of the discharge pipe 3. The connecting pipe 7 enables the circulation of materials between the upper and lower parts of the tank body 1, and the discharge pipe 3 is used for the discharge of finished slurry. The discharge vacuum solenoid valve 4 controls the opening and closing of the discharge pipe 3 to ensure the vacuum sealing of the tank body 1. A pumping pump 8 is provided in the middle of the outer surface of the connecting pipe 7 to provide power for the circulation of materials in the connecting pipe 7, realizing the conveying of materials from the upper part of the tank body 1 to the lower part. The sealing cover 10 and the fixed grinding rod 19 are located at both ends of the connecting pipe 7. Between the openings, the connecting pipe 7 can smoothly extract the material from the upper part of the tank 1 and transport it to the lower part, while avoiding the sealing cover 10 and the fixed grinding rod 19 from obstructing the material circulation. The upper surface of the tank 1 is fixedly connected to the feed pipe 26 and the vacuum pump 6. The feed pipe 26 is used to add fire retardant coating raw materials into the tank 1, and the vacuum pump 6 is used to perform vacuuming operations inside the tank 1 to create a vacuum dispersion environment. The outer surface of the feed pipe 26 is equipped with a feed vacuum solenoid valve 5 to control the opening and closing of the feed pipe 26. It is closed during vacuuming and dispersion operations to ensure the vacuum sealing of the tank 1.

[0026] A vacuum high-speed dispersion pulping process for fire-retardant coatings uses a vacuum high-speed dispersion pulping device for fire-retardant coatings as described above. By closing the inlet vacuum solenoid valve 5 and the outlet vacuum solenoid valve 4, the vacuum pump 6 is started to evacuate the inside of the tank 1. After reaching the preset vacuum level, the inlet vacuum solenoid valve 5 is opened, and the fire-retardant coating raw materials are added into the tank 1 through the inlet pipe 26. By evacuating the vacuum before feeding, air is avoided from being mixed into the raw materials, ensuring the pulping quality. The inlet vacuum solenoid valve 5 is closed to maintain the vacuum state of the tank 1. The drive motor 2 is started to drive the rotating column 9 and the transmission gear 11 to rotate. Through the meshing transmission gear 11 with the driven gear 15 and the clamping gear 12, the extension rod 16 and the stirring rod 17 are driven to rotate at high speed to stir and disperse the raw materials. Maintaining a vacuum environment can avoid the generation of bubbles during the dispersion process. At the same time, the stable gear transmission ensures the uniformity of stirring and dispersion.

[0027] The rotating column 9 drives the rotating filter plate 18 to rotate, and the contact block 27 contacts and squeezes the mating block 25. With the extension and retraction of the second tightening spring 22, the rotating filter plate 18 vibrates back and forth. When the raw material is filtered by the rotating filter plate 18, the fixed grinding rod 19 assists in grinding the raw material to improve the dispersion uniformity. Through the vibration filtration of the rotating filter plate 18 and the auxiliary grinding of the fixed grinding rod 19, large particles in the raw material are further removed, and the fineness of the slurry is improved. The pumping pump 8 is started, and the material in the upper part of the tank 1 is pumped to the lower part through the connecting pipe 7 to realize the material circulation and further improve the homogenization effect of slurry making. The material in each area of ​​the tank 1 can be fully dispersed, avoiding insufficient dispersion in some areas. After the slurry making is completed, the drive motor 2 and vacuum pump 6 are turned off, the discharge vacuum solenoid valve 4 is opened, and the finished fireproof coating slurry is discharged through the discharge pipe 3 to complete the slurry making operation. By controlling the start and stop sequence of each valve and equipment, the smooth operation process and the smooth collection of the finished product are ensured.

[0028] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum high-speed dispersion and slurry preparation device for fire-retardant coatings, comprising: A tank body (1) is provided with a drive motor (2) fixedly connected to its lower surface, and a rotating column (9) fixedly connected to the output end of the drive motor (2). The rotating column (9) is characterized by the following features: a sealing cover (10) is rotatably connected to the outer surface of the rotating column (9), and a transmission gear (11) is fixedly connected to the outer surface of the rotating column (9) inside the sealing cover (10). A driven gear (15) is symmetrically arranged on the upper surface of the transmission gear (11). An extension rod (16) is fixedly connected to the side wall of the driven gear (15), and a stirring rod (17) is fixedly connected to the outer surface of the extension rod (16). A clamping gear (12) meshes between two adjacent driven gears (15), and the clamping gear (12) is rotatably connected to the outer surface of the rotating column (9). A limit bearing (14) is fixedly connected to the outer surface of the rotating column (9), and the lower surface of the limit bearing (14) abuts against a first... A top-tightening spring (13) is used, and the lower surface of the first top-tightening spring (13) abuts against the clamping gear (12). A rotating filter plate (18) is fixedly connected to the outer surface of the rotating column (9). A sealing sleeve (20) is rotatably connected to the lower surface of the rotating filter plate (18). The sealing sleeve (20) is fixedly connected to the inner wall of the tank (1). A movable groove (21) is opened on the inner wall of the sealing sleeve (20). A second top-tightening spring (22) is sleeved on the inner surface of the movable groove (21). A contact plate (23) abuts against one side of the second top-tightening spring (22). A connecting column (24) is fixedly connected to one side of the contact plate (23). A mating block (25) is fixedly connected to one side of the connecting column (24). A contact block (27) is contacted on the outer surface of the mating block (25). The contact block (27) is fixedly connected to the lower surface of the rotating filter plate (18).

2. The vacuum high-speed dispersion pulping equipment for fire-retardant coatings according to claim 1, characterized in that: The extension rod (16) extends to the outer surface of the sealing cover (10), the driven gear (15) is located between the transmission gear (11) and the clamping gear (12), the cross section of the mating block (25) is crescent-shaped, and the cross section of the abutting block (27) is a combination of continuous arc and rectangle.

3. The vacuum high-speed dispersion pulping equipment for fire-retardant coatings according to claim 1, characterized in that: The contact plate (23) is located inside the movable groove (21), and there are several mating blocks (25), with the number of contact blocks (27) corresponding to the number of mating blocks (25).

4. The vacuum high-speed dispersion pulping equipment for fire-retardant coatings according to claim 1, characterized in that: The mating blocks (25) are centrally symmetrically distributed on the inner wall of the sealing sleeve (20), the second tightening spring (22), and three fixed grinding rods (19) are fixedly connected to the inner wall of the tank (1), and the three fixed grinding rods (19) are centrally symmetrically distributed on the upper surface of the rotating filter plate (18).

5. A vacuum high-speed dispersion pulping device for fire-retardant coatings according to claim 1, characterized in that: The outer surface of the tank (1) is fixedly connected to a connecting pipe (7) and a discharge pipe (3) on both sides, and the outer surface of the discharge pipe (3) is provided with a discharge vacuum solenoid valve (4), and the middle of the outer surface of the connecting pipe (7) is provided with a pumping pump (8).

6. A vacuum high-speed dispersion slurry preparation device for fire-retardant coatings according to claim 5, characterized in that: The sealing cover (10) and the fixed grinding rod (19) are both located between the openings at both ends of the connecting pipe (7), and the upper surface of the tank (1) is fixedly connected to the feed pipe (26) and the vacuum pump (6).

7. A vacuum high-speed dispersion pulping device for fire-retardant coatings according to claim 6, characterized in that: The outer surface of the feed pipe (26) is provided with a feed vacuum solenoid valve (5).

8. A vacuum high-speed dispersion slurry preparation process for fire-retardant coatings, characterized in that: Using a vacuum high-speed dispersion slurry preparation device for fire-retardant coatings as described in any one of claims 1-7, by closing the feed vacuum solenoid valve (5) and the discharge vacuum solenoid valve (4), the vacuum pump (6) is started to evacuate the inside of the tank (1). After reaching the preset vacuum level, the feed vacuum solenoid valve (5) is opened, and fire-retardant coating raw materials are added into the tank (1) through the feed pipe (26). The feed vacuum solenoid valve (5) is closed to maintain the vacuum state of the tank (1). The drive motor (2) is started to drive the rotating column (9) and the transmission gear (11) to rotate. Through the meshing transmission of the transmission gear with the driven gear (15) and the clamping gear (12), the extension rod (16) and the stirring rod (17) are driven to rotate at high speed to stir and disperse the raw materials. The rotating column (9) drives the rotating filter plate (18) to rotate. The contact block (27) and the mating block (25) come into contact and squeeze. With the extension and retraction of the second tightening spring (22), the rotating filter plate (18) vibrates back and forth. When the raw material is filtered through the rotating filter plate (18), the fixed grinding rod (19) assists in grinding the raw material to improve the dispersion uniformity. The pumping pump (8) is started, and the material in the upper part of the tank (1) is pumped to the lower part through the connecting pipe (7) to realize material circulation and further improve the homogenization effect of slurry making. After the slurry making is completed, the drive motor (2) and vacuum pump (6) are turned off, the discharge vacuum solenoid valve (4) is opened, and the finished fireproof coating slurry is discharged through the discharge pipe (3).

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