High rain erosion resistant coating nanofiller dispersion device

Abstract

The utility model relates to the field of paint production equipment, concretely relates to a kind of high rain-erosion-resistant paint nano filler dispersion device, solve the problem of lower dispersion efficiency in the production of existing nano paint, including rack, the grinder cylinder and the dispersion cylinder being communicated with the grinder cylinder are sequentially arranged from top to bottom on the rack, the center of the dispersion cylinder is arranged with stirring mechanism, and the periphery side is provided with infusion port for dispersion liquid input, lower end is provided with discharge port, the upper end of the grinder cylinder is provided with feed inlet, the grinder cylinder is arranged with grinding mechanism, the grinding mechanism includes shaft body assembly being arranged in the axis of the grinder cylinder, grinding motor for driving the rotation of the shaft body assembly, three groups of grinding components are sequentially installed on the shaft body assembly, the grinding granularity of each group of grinding components sequentially decreases from top to bottom, and each grinding component includes grinding rotor and grinding stator fixed on the inner wall of the grinder cylinder.The utility model is applied to the dispersion process in paint production.

Description

Technical Field

[0001] This utility model relates to the field of coating production equipment, specifically to a dispersion device for nanofillers in coatings with high rain erosion resistance. Background Technology

[0002] Nano paint is a type of decorative material made from new nanomaterials. It has excellent performance and is significantly improved in terms of scrub resistance, stain resistance and alkali resistance compared to ordinary latex paint. It is also non-toxic, mildew-proof, scrub-resistant, easy to apply and resistant to chemical corrosion.

[0003] However, in current production, large particles need to be gradually ground and dispersed until the required particle size is achieved. As shown in the authorization announcement number CN 215743091 U, a nano-coating dispersion device is proposed, including a support column, a fixed base installed at the lower end of the support column, a hexagonal connecting nut installed at the upper end of the fixed base, and six hexagonal connecting nuts are provided. A connecting block is installed at the upper end of the support column, a rotary motor is installed at the lower end of one end of the connecting block, a connecting column is installed at the lower end of the rotary motor, a stirring structure base is installed at the lower end of the connecting column, a drive shaft is installed at the lower end of the stirring structure base, a stirring blade connecting block is installed at the lower end of the drive shaft, stirring blades are installed around the stirring blade connecting block, a servo motor is installed at the lower end of the other end of the connecting block, a connecting fixing rod is installed at the lower end of the servo motor, a rotary crushing structure is installed at the lower end of the connecting fixing rod, a feed port is provided on the outer surface of the rotary crushing structure, and crushing wheel teeth are installed at the lower end of the rotary crushing structure. It shows the dispersion equipment currently used in the production of nano-coatings.

[0004] However, this structure results in poor dispersion efficiency and makes it easy for agglomerates to form inside the material container, further affecting the dispersion efficiency. Utility Model Content

[0005] Therefore, this invention provides a dispersion device for nanofillers in high rain erosion resistant coatings, which solves the problem of low dispersion efficiency in existing nanocoating production.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A high rain erosion resistant coating nanofiller dispersion device includes a frame, on which a grinding cylinder and a dispersion cylinder connected to the grinding cylinder are arranged sequentially from top to bottom. A stirring mechanism is arranged in the center of the dispersion cylinder, and a liquid inlet for inputting the dispersion liquid is arranged on the periphery. A discharge port is arranged at the lower end. A feed port is arranged at the upper end of the grinding cylinder. A grinding mechanism is arranged inside the grinding cylinder. The grinding mechanism includes a shaft assembly located at the axis of the grinding cylinder, a grinding motor for driving the shaft assembly to rotate, and three sets of grinding components sequentially installed on the shaft assembly. The grinding particle size of each set of grinding components decreases sequentially from top to bottom. Each grinding component includes a grinding rotor and a grinding stator fixed on the inner wall of the grinding cylinder.

[0008] Preferably, the grinding component located in the upper layer is a coarse grinding component, wherein the grinding rotor of the coarse grinding component is a blunt tooth rotor, and the grinding stator is a grid stator with a uniformly distributed grid on its surface.

[0009] Preferably, the grinding component located in the middle is a medium grinding component, wherein the grinding rotor of the medium grinding component is a sawtooth rotor with a sawtooth structure on the surface, and the grinding stator is a honeycomb stator with a honeycomb structure evenly distributed on the surface.

[0010] Preferably, the grinding component located in the lower layer is a fine grinding component, wherein the grinding rotor of the fine grinding component is a turbine rotor, and the grinding stator is a screen stator with a mesh surface.

[0011] Preferably, the stirring mechanism includes a stirring motor, a stirring shaft directly connected to the stirring motor and located at the center of the dispersion cylinder, and stirring blades mounted on the stirring shaft.

[0012] Preferably, the stirring mechanism includes a stirring motor, a stirring shaft eccentrically connected to the stirring motor and disposed at the center of the dispersion cylinder, and stirring blades mounted on the stirring shaft.

[0013] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0014] This invention differs from traditional dispersion devices that rely on high-speed stirring to achieve dispersion. Instead, it employs a multi-layered grinding mechanism designed specifically for nanofillers. This mechanism consists of multiple levels of grinding, with particle sizes gradually decreasing from large to small, to obtain a more balanced packing material with smaller particle size deviations. The packing material is then fed into the dispersion cylinder below and thoroughly mixed with the dispersion liquid to achieve the desired dispersion effect.

[0015] Structurally, the three-layer grinding mechanism creates a gradient crushing synergy: through the shearing and crushing of the blunt-tooth grid, the tearing and refining of the serrated honeycomb, and the vortex grinding of the turbine screen, a synergistic effect of differentiated crushing mechanisms is formed. Compared with a single grinding method, energy waste is reduced, and the particle size of the material shows a step-like convergence, narrowing the final particle size distribution range of the nanofiller to ±15nm. The corresponding stator structure has a dynamic anti-clogging design: the grid spacing and blunt tooth gap of the grid stator form a dynamic material channel, and the hexagonal cavity of the honeycomb stator has both buffering and guiding functions. Combined with the staggered cutting of the serrations, it improves grinding efficiency while avoiding secondary agglomeration of nanoparticles. The negative pressure vortex generated by the turbine rotor enables the screen stator to have a self-cleaning function, reducing the probability of clogging by more than 95%. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the surface structure of the grid stator in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the surface structure of the honeycomb stator in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the surface structure of the screen stator in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of another dispersion cylinder in an embodiment of this utility model.

[0021] Reference numerals: 100, frame; 1, grinding cylinder; 11, feed inlet; 12, shaft assembly; 13, grinding motor; 14, coarse grinding assembly; 141, grid stator; 15, medium grinding assembly; 151, honeycomb stator; 16, fine grinding assembly; 161, screen stator; 17, outer frame; 18, inner frame; 2, dispersing cylinder; 21, stirring motor; 22, stirring shaft; 23, stirring blades; 24, liquid inlet; 25, discharge outlet. Detailed Implementation

[0022] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Example

[0024] refer to Figures 1 to 4A high rain erosion resistant coating nanofiller dispersion device includes a frame 100. A grinding cylinder 1 and a dispersion cylinder 2 connected to the grinding cylinder 1 are arranged sequentially from top to bottom on the frame 100. A stirring mechanism is arranged at the center of the dispersion cylinder 2. In this embodiment, the stirring mechanism includes a stirring motor 21, a stirring shaft 22 directly connected to the stirring motor 21 and located at the axis of the dispersion cylinder 2, and stirring blades 23 mounted on the stirring shaft 22. Material enters the dispersion cylinder 2 after passing through the grinding cylinder 1. The dispersion cylinder 2 has inlet ports 24 for inputting the dispersion liquid on its periphery and a discharge port 25 at its lower end. The inlet ports 24 and discharge port 25 on the dispersion cylinder 2 cooperate to perform stirring, dispersion, and timely discharge.

[0025] The upper end of the grinding cylinder 1 is provided with a feed port 11. The grinding cylinder 1 is provided with a grinding mechanism. The grinding mechanism includes a shaft assembly 12 located at the axis of the grinding cylinder 1, a grinding motor 13 that drives the shaft assembly 12 to rotate, and three sets of grinding components installed sequentially on the shaft assembly 12. The grinding particle size of each set of grinding components decreases sequentially from top to bottom. Each grinding component includes a grinding rotor and a grinding stator fixed on the inner wall of the grinding cylinder 1.

[0026] In this embodiment:

[0027] The upper-layer grinding assembly is a coarse grinding assembly 14, wherein the grinding rotor of the coarse grinding assembly 14 is a blunt-tooth rotor, and the grinding stator is a grid stator 141 with a uniformly distributed grid on its surface; as Figure 2 As shown, the grid stator 141 is made of a single piece of metal, on which a corresponding grid structure is formed.

[0028] The grinding assembly located in the middle is the intermediate grinding assembly 15. The grinding rotor of the intermediate grinding assembly 15 is a sawtooth rotor with a serrated surface, and the grinding stator is a honeycomb stator 151 with a uniformly distributed honeycomb structure on its surface; for example Figure 3 As shown, the honeycomb stator 151 is made of a single piece of metal, which is divided into an outer frame 17 (the outer frame 17 is connected and installed to the grinding cylinder 1) which is free from the sawtooth rotor and a corresponding grinding part, and the honeycomb structure is formed in this part.

[0029] The lower-level grinding assembly is a fine grinding assembly 16, whose grinding rotor is a turbine rotor and grinding stator is a screen stator 161 with a mesh surface. Figure 4 As shown, the screen stator 161 not only has an outer frame 17, but also an inner frame 18 that is connected and installed with the shaft assembly 12; a corresponding screen structure is installed between the inner frame 18 and the outer frame 17.

[0030] It should be noted that the shaft assembly 12 described in this embodiment is a multi-layered, independently rotating sleeve structure suitable for three sets of grinding components, with each shaft individually coupled to a corresponding motor; wherein, the power ratio of the grinding motors 13 of each grinding component is 1:(1.8-2.2):(2.5-3.5); under this design, the rotation speed of the three grinding components can be controlled independently, and the rotation speed ratio can be adjusted to flexibly adjust the particle size of the produced grinding material and ensure a balance between quality and efficiency.

[0031] This invention differs from traditional dispersion devices that rely on high-speed stirring to achieve dispersion. Instead, it employs a multi-layered grinding mechanism designed specifically for nanofillers. This mechanism consists of multiple levels of grinding, with particle sizes gradually decreasing from large to small, to obtain a more balanced packing material with smaller particle size deviation. The packing material is then fed into the dispersion cylinder 2 below and thoroughly mixed with the dispersion liquid to achieve the dispersion effect.

[0032] Structurally, the three-layer grinding mechanism creates a gradient crushing synergy: through the shearing and crushing of the blunt-tooth grid, the tearing and refining of the sawtooth honeycomb, and the vortex grinding of the turbine screen, a synergistic effect of differentiated crushing mechanisms is formed. Compared with a single grinding method, energy waste is reduced, and the particle size of the material shows a step-like convergence, narrowing the final particle size distribution range of the nanofiller to ±15nm. The corresponding stator structure has a dynamic anti-clogging design: the grid spacing and blunt tooth gap of the grid stator 141 form a dynamic material channel, and the hexagonal cavity of the honeycomb stator 151 has both buffering and guiding functions. Combined with the staggered cutting of the sawtooth, it improves grinding efficiency while avoiding secondary agglomeration of nanoparticles. The negative pressure vortex generated by the turbine rotor enables the screen stator 161 to have a self-cleaning function, reducing the probability of clogging by more than 95%.

[0033] Among them, depending on the design, such as Figure 5 As shown, the stirring mechanism includes a stirring motor 21, a stirring shaft 22 eccentrically connected to the stirring motor 21 and located at the axis of the dispersion cylinder 2, and stirring blades 23 mounted on the stirring shaft 22. This structure increases the stirring range of the stirring mechanism, thereby reducing motor power, and forms an eccentric stirring pattern, further improving dispersion and stirring efficiency.

[0034] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A dispersion device for nanofillers in a high rain erosion resistant coating, comprising a frame (100), wherein a grinding cylinder (1) and a dispersion cylinder (2) connected to the grinding cylinder (1) are arranged sequentially from top to bottom on the frame (100), a stirring mechanism is arranged in the center of the dispersion cylinder (2), a liquid inlet (24) for inputting dispersion liquid is provided on the periphery, and a discharge port (25) is provided at the lower end, characterized in that: The upper end of the grinding cylinder (1) is provided with a feed port (11). The grinding cylinder (1) is provided with a grinding mechanism. The grinding mechanism includes a shaft assembly (12) located at the axis of the grinding cylinder (1), a grinding motor (13) that drives the shaft assembly (12) to rotate, and three sets of grinding components installed on the shaft assembly (12) in sequence. The grinding particle size of each set of grinding components decreases from top to bottom. Each grinding component includes a grinding rotor and a grinding stator fixed on the inner wall of the grinding cylinder (1).

2. The high rain erosion resistant coating nanofiller dispersion device according to claim 1, characterized in that: The grinding assembly located on the upper layer is a coarse grinding assembly (14), the grinding rotor of the coarse grinding assembly (14) is a blunt tooth rotor, and the grinding stator is a grid stator (141) with a uniformly distributed grid on the surface.

3. The high rain erosion resistant coating nanofiller dispersion device according to claim 1, characterized in that: The grinding component located in the middle is the intermediate grinding component (15). The grinding rotor of the intermediate grinding component (15) is a sawtooth rotor with a sawtooth structure on the surface, and the grinding stator is a honeycomb stator (151) with a honeycomb structure evenly distributed on the surface.

4. The nanofiller dispersion device for high rain erosion resistant coating according to claim 1, characterized in that: The grinding assembly located in the lower layer is a fine grinding assembly (16), the grinding rotor of the fine grinding assembly (16) is a turbine rotor, and the grinding stator is a screen stator (161) with a mesh surface.

5. A high rain erosion resistant coating nanofiller dispersion device according to any one of claims 1-4, characterized in that: The stirring mechanism includes a stirring motor (21), a stirring shaft (22) directly connected to the stirring motor (21) and located at the center of the dispersion cylinder (2), and stirring blades (23) mounted on the stirring shaft (22).

6. A high rain erosion resistant coating nanofiller dispersion device according to any one of claims 1-4, characterized in that: The stirring mechanism includes a stirring motor (21), a stirring shaft (22) eccentrically connected to the stirring motor (21) and located at the axis of the dispersion cylinder (2), and stirring blades (23) mounted on the stirring shaft (22).

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