Dispersing device for paint production

Abstract

The utility model discloses a dispersing device for paint production, and relates to the technical field of paint production, a plurality of conical dispersing teeth are uniformly distributed on the upper surface and the lower surface of a dispersing disc respectively, and the heights of the dispersing teeth are gradually increased from the center of the dispersing disc to the edge of the dispersing disc. The conical dispersing teeth on the dispersing disc can generate shearing force and impact force on particles such as pigment and filler in paint in the rotating process. The heights of the dispersion teeth are gradually increased from the center to the edge, and the dispersion teeth at different positions generate different acting forces on the paint, so that particles can be dispersed in a larger range and under different strengths, the dispersion efficiency and uniformity are improved, pigments and the like can be fully blended into a paint base, and the paint quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of paint production technology, specifically to a dispersion device for paint production. Background Technology

[0002] In the paint production process, the dispersion unit is one of the most crucial pieces of equipment. Its main function is to uniformly disperse solid particles such as pigments and fillers in the paint base to obtain a high-performance paint product. Traditional dispersion units typically use a single stirring method, which has low dispersion efficiency and makes it difficult to fully and uniformly disperse pigments and other particles in a short time, resulting in unstable paint color and performance. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a dispersion device for paint production that addresses the shortcomings of existing technologies, resulting in more uniform material dispersion and more stable paint performance.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A dispersion device for paint production includes a dispersion vessel, a stirring shaft inside the dispersion vessel, a drive motor connected to the top of the stirring shaft, and a plurality of dispersion discs axially arranged on the stirring shaft. The upper and lower surfaces of the dispersion discs are evenly distributed with a plurality of conical dispersion teeth, and the height of the dispersion teeth gradually increases from the center of the dispersion disc to the edge.

[0006] As an improved technical solution, the edge of the dispersion disk is provided with a ring of inclined baffles.

[0007] As an improved technical solution, the angle between the spoiler and the plane of the dispersion disk is 30°-60°.

[0008] As an improved technical solution, the edge of the spoiler is provided with circumferential serrated notches.

[0009] As an improved technical solution, the inner wall of the dispersion vessel is provided with a number of baffles adapted to the corresponding baffles, and the free ends of the baffles are arranged facing the center of the dispersion vessel.

[0010] As an improved technical solution, spiral stirring blades are provided between adjacent dispersion discs.

[0011] As a preferred technical solution, the dispersing disk is provided with several through holes.

[0012] As a preferred technical solution, the bottom of the dispersion vessel is provided with a stirring paddle with a cross-shaped cross section, the bottom of the stirring paddle is arc-shaped, and the surface of the stirring paddle is provided with several interference flow holes.

[0013] As a preferred technical solution, the bottom outlet of the dispersion vessel is provided with a circulation pump, the outlet of the circulation pump is connected to a static mixer, and the outlet of the static mixer is connected to the inlet of the dispersion vessel.

[0014] As a preferred technical solution, the dispersion vessel is provided with an annular distribution plate, the bottom of which is connected to a plurality of nozzles, which are inclined toward the inner wall of the dispersion vessel, and the interior of the dispersion vessel is provided with an annular baffle plate adapted to the plurality of nozzles.

[0015] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] This utility model discloses a dispersion device for paint production, comprising a dispersion vessel containing a stirring shaft. A drive motor is connected to the top of the stirring shaft, and several dispersion discs are axially arranged on the stirring shaft. Multiple conical dispersion teeth are evenly distributed on the upper and lower surfaces of each dispersion disc, with the height of the dispersion teeth gradually increasing from the center to the edge. During rotation, the conical dispersion teeth on the dispersion discs generate shear and impact forces on pigments, fillers, and other particles in the paint. Because the height of the dispersion teeth gradually increases from the center to the edge, the forces exerted on the paint by the dispersion teeth at different positions vary, enabling the dispersion of particles over a wider range and at different intensities. This improves dispersion efficiency and uniformity, helps pigments and other particles to fully integrate into the paint base, and enhances paint quality.

[0017] The dispersion disc of this invention has a ring of inclined baffles around its edge. These baffles alter the flow direction of the paint near the edge of the dispersion disc, creating additional turbulence. This turbulence disrupts the laminar flow of the paint, increases internal turbulence, promotes thorough mixing between pigment particles and between pigment particles and the paint base, and further enhances the dispersion effect.

[0018] The angle between the baffle and the plane of the dispersion disk is 30°-60°. Within this angle range, the baffle can effectively interfere with the flow of paint, forming a turbulence of appropriate intensity, without causing excessive resistance due to an excessively large angle, affecting the stirring efficiency, or failing to produce sufficient turbulence due to an excessively small angle, thus ensuring that the baffle plays its best role in the dispersion process.

[0019] The spoiler has circumferential serrated notches along its edges. These serrated notches further enhance the spoiler's cutting and turbulent effect on the paint. As the paint flows through the serrated notches, it creates more small eddies and turbulence, subjecting the pigment particles to more complex forces, thus improving pigment dispersion and increasing the fineness of the dispersion.

[0020] The inner wall of the dispersion vessel is equipped with several baffles adapted to the corresponding baffles, with the free ends of the baffles facing the center of the dispersion vessel. The baffles and baffles work together; when the turbulence generated by the paint, driven by the baffles, encounters the baffles, the baffles change the flow direction of the paint, creating a more complex flow path within the dispersion vessel. This complex flow increases the contact opportunities between the paint and the dispersion disc and stirring shaft, further improving the pigment dispersion effect, and also helps eliminate dead zones in the dispersion vessel. The upper and lower baffles corresponding to each dispersion disc are staggered axially for better dispersion.

[0021] Helical stirring blades are provided between adjacent dispersion discs. During the stirring process, the helical stirring blades enable the paint to flow in the axial direction, supplementing the stirring effect of the dispersion discs, which are mainly in the radial direction. This promotes the mixing of paint at different heights, avoids layering, and ensures that the paint in the entire dispersion vessel is fully stirred and dispersed, thus improving the overall dispersion.

[0022] The dispersion disc has several through holes. These holes allow the paint on the upper and lower sides of the dispersion disc to circulate, reducing the pressure difference between the upper and lower surfaces and lowering the resistance during the mixing process. Simultaneously, as the paint passes through the through holes, it forms a jet, impacting and mixing the surrounding pigment particles, further enhancing the dispersion effect.

[0023] The dispersion vessel is equipped with a cross-shaped stirring paddle at the bottom, with an arc-shaped bottom and several turbulence holes on its surface. The cross-shaped paddle covers a large area of ​​the bottom of the dispersion vessel, effectively stirring the paint and preventing pigment particles from depositing. The arc-shaped bottom reduces friction between the paddle and the bottom of the vessel, lowering energy consumption and ensuring smoother stirring. The turbulence holes create micro-turbulence in the paint at the bottom during stirring, enhancing the stirring effect, eliminating dead zones, and ensuring uniform dispersion of the paint throughout the dispersion vessel.

[0024] The bottom outlet of the dispersion vessel is equipped with a circulation pump, the outlet of which is connected to a static mixer. The outlet of the static mixer is connected to the inlet of the dispersion vessel. The circulation pump draws the paint from the bottom of the dispersion vessel and sends it to the static mixer. The static mixer has a special internal structure that allows the paint to be continuously divided and mixed during flow, further refining the pigment particles and improving dispersion uniformity. The paint processed by the static mixer returns to the dispersion vessel, forming a cycle. Through multiple cycles, the dispersion quality of the paint can be significantly improved.

[0025] The dispersion vessel is equipped with an annular distribution plate, the bottom of which is connected to a plurality of nozzles. These nozzles are inclined towards the inner wall of the dispersion vessel. An annular baffle plate, adapted to the nozzles, is located inside the dispersion vessel. The arrangement of the distribution plate and nozzles allows the paint to be sprayed onto the inner wall of the dispersion vessel at a specific pressure and angle. The inclined spraying method allows for a more uniform distribution of the paint on the inner wall, increasing the contact area between the paint and the inner wall. The baffle plate blocks the sprayed paint, causing it to bounce and turbulent, further promoting paint mixing and pigment dispersion, while also helping to prevent paint accumulation on the inner wall of the dispersion vessel. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0028] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0029] Figure 3 yes Figure 2 Schematic diagram of the structure of the central dispersion disk;

[0030] Figure 4 yes Figure 2 Schematic diagram of the structure of the stirring impeller;

[0031] The components are: 1. Dispersion vessel; 2. Stirring shaft; 3. Drive motor; 4. Dispersion disc; 5. Dispersion teeth; 6. Baffle plate; 7. Serrated notch; 8. Baffle plate; 9. Spiral stirring blade; 10. Through hole; 11. Stirring paddle; 12. Baffle hole; 13. Circulation pump; 14. Static mixer; 15. Distribution disc; 16. Nozzle; 17. Baffle plate. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] like Figure 1-4As shown, a dispersion device for paint production includes a dispersion vessel 1. A stirring shaft 2 is installed inside the dispersion vessel 1, and a drive motor 3 is connected to the top of the stirring shaft 2. Several dispersion discs 4 are axially arranged on the stirring shaft 2. Multiple conical dispersion teeth 5 are evenly distributed on the upper and lower surfaces of each dispersion disc 4, with the height of the dispersion teeth 5 gradually increasing from the center to the edge of the dispersion disc 4. During rotation, the conical dispersion teeth 5 on the dispersion disc 4 generate shear and impact forces on pigments, fillers, and other particles in the paint. Because the height of the dispersion teeth 5 gradually increases from the center to the edge, the force exerted on the paint by the dispersion teeth 5 at different positions varies, enabling the dispersion of particles over a wider range and under different intensities. This improves dispersion efficiency and uniformity, helps pigments and other particles to fully integrate into the paint base, and enhances paint quality.

[0034] The dispersion disk 4 is provided with a ring of inclined baffles 6 around its edge. The baffles 6 can change the flow direction of the paint near the edge of the dispersion disk 4, creating additional turbulence in the paint. This turbulence can disrupt the laminar flow of the paint, increase the degree of turbulence inside the paint, promote thorough mixing between pigment particles and between pigment particles and the paint base, and further improve the dispersion effect.

[0035] The angle between the baffle plate 6 and the plane of the dispersion disk 4 is 30°-60°. Within this angle range, the baffle plate 6 can effectively interfere with the flow of paint, forming a turbulence of appropriate intensity, without causing excessive resistance due to an excessively large angle, affecting the stirring efficiency, or failing to produce sufficient turbulence effect due to an excessively small angle, thus ensuring that the baffle plate 6 plays its best role in the dispersion process.

[0036] The edge of the spoiler 6 is provided with circumferential serrated notches 7. The serrated notches 7 further enhance the cutting and turbulence effect of the spoiler 6 on the paint. When the paint flows through the serrated notches 7, more small eddies and turbulence are formed, which makes the pigment particles subject to more complex forces, thus making it more conducive to the dispersion of pigment and improving the fineness of dispersion.

[0037] The inner wall of the dispersion vessel 1 is provided with several baffles 8 adapted to the corresponding baffles 6, with the free ends of the baffles 8 facing the center of the dispersion vessel 1. The baffles 8 and baffles 6 cooperate with each other; when the turbulence generated by the paint, driven by the baffles 6, encounters the baffles 8, the baffles 8 change the flow direction of the paint, creating a more complex flow path within the dispersion vessel 1. This complex flow increases the contact opportunities between the paint and the dispersion disc 4 and the stirring shaft 2, further improving the pigment dispersion effect, and also helps eliminate dead zones in the dispersion vessel 1. The upper and lower baffles 8 corresponding to each dispersion disc 4 are staggered axially for better dispersion.

[0038] Spiral stirring blades 9 are provided between adjacent dispersion discs 4. During the stirring process, the spiral stirring blades 9 can cause the paint to flow in the axial direction, supplementing the stirring effect of the dispersion discs 4, which is mainly in the radial direction. It can promote the mixing of paint at different heights, avoid the phenomenon of layering, and ensure that the paint in the entire dispersion vessel 1 is fully stirred and dispersed, thereby improving the overall dispersion.

[0039] The dispersion disk 4 is provided with several through holes 10. The through holes 10 allow the paint on the upper and lower sides of the dispersion disk 4 to flow between each other, reducing the pressure difference between the upper and lower surfaces of the dispersion disk 4 and reducing the resistance during the stirring process. At the same time, when the paint passes through the through holes 10, it forms a jet, which impacts and mixes the surrounding pigment particles, further enhancing the dispersion effect.

[0040] The bottom of the dispersion vessel 1 is equipped with a cross-shaped stirring paddle 11. The bottom of the stirring paddle 11 is arc-shaped, and its surface is provided with several turbulence holes 12. The cross-shaped stirring paddle 11 can cover a large area of ​​the bottom of the dispersion vessel 1, effectively stirring the paint at the bottom and preventing pigment particles from depositing there. The arc-shaped bottom reduces friction between the stirring paddle 11 and the bottom of the dispersion vessel 1, reducing energy consumption and making stirring smoother. The turbulence holes 12 create tiny turbulence in the paint at the bottom during stirring, enhancing the stirring effect, eliminating dead zones at the bottom, and ensuring uniform dispersion of the paint throughout the dispersion vessel 1.

[0041] The bottom outlet of the dispersion vessel 1 is equipped with a circulation pump 13, the outlet of which is connected to a static mixer 14, and the outlet of the static mixer 14 is connected to the inlet of the dispersion vessel 1. The circulation pump 13 draws the paint from the bottom of the dispersion vessel 1 and sends it to the static mixer 14. The static mixer 14 has a special internal structure that allows the paint to be continuously divided and mixed during the flow process, further refining the pigment particles and improving the dispersion uniformity. The paint processed by the static mixer 14 returns to the dispersion vessel 1, forming a cycle. Through multiple cycles, the dispersion quality of the paint can be significantly improved.

[0042] The dispersion vessel 1 is equipped with an annular distribution plate 15, the bottom of which is connected to a plurality of nozzles 16. These nozzles 16 are inclined toward the inner wall of the dispersion vessel 1. An annular baffle plate 17, adapted to the nozzles 16, is located inside the dispersion vessel 1. The arrangement of the distribution plate 15 and nozzles 16 allows paint to be sprayed onto the inner wall of the dispersion vessel 1 at a certain pressure and angle. The inclined spraying method allows the paint to form a more uniform distribution on the inner wall of the dispersion vessel 1, increasing the contact area between the paint and the inner wall. The baffle plate 17 blocks the sprayed paint, causing it to bounce and turbulent, further promoting paint mixing and pigment dispersion, while also helping to prevent paint from accumulating on the inner wall of the dispersion vessel 1.

[0043] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A dispersion device for paint production, comprising a dispersion vessel, wherein a stirring shaft is provided inside the dispersion vessel, and a drive motor is connected to the top of the stirring shaft, characterized in that: The stirring shaft is provided with several dispersing discs along its axial direction. The upper and lower surfaces of the dispersing discs are evenly distributed with multiple conical dispersing teeth. The height of the dispersing teeth gradually increases from the center of the dispersing disc to the edge.

2. The dispersion device for paint production as described in claim 1, characterized in that: The edge of the dispersion disk is provided with a ring of inclined baffles.

3. The dispersion device for paint production as described in claim 2, characterized in that: The angle between the baffle and the plane of the dispersion disk is 30°-60°.

4. A dispersion device for paint production as described in claim 2, characterized in that: The edge of the spoiler has circumferential serrated notches.

5. A dispersion device for paint production as described in claim 2, characterized in that: The inner wall of the dispersion vessel is provided with several baffles adapted to the corresponding baffles, and the free ends of the baffles are arranged facing the center of the dispersion vessel.

6. A dispersion device for paint production as described in claim 1, characterized in that: Spiral stirring blades are provided between adjacent dispersion discs.

7. A dispersion device for paint production as described in claim 1, characterized in that: The dispersion disk has several through holes.

8. A dispersion device for paint production as described in claim 1, characterized in that: The bottom of the dispersion vessel is provided with a cross-shaped stirring paddle, the bottom of the stirring paddle is arc-shaped, and the surface of the stirring paddle is provided with several interference flow holes.

9. A dispersion device for paint production as described in claim 1, characterized in that: The bottom outlet of the dispersion vessel is equipped with a circulation pump, the outlet of which is connected to a static mixer, and the outlet of the static mixer is connected to the inlet of the dispersion vessel.

10. A dispersion device for paint production as described in claim 9, characterized in that: The dispersion vessel is equipped with an annular distribution plate, and the bottom of the distribution plate is connected to a plurality of nozzles. The plurality of nozzles are inclined toward the inner wall of the dispersion vessel, and the interior of the dispersion vessel is equipped with an annular baffle plate adapted to the plurality of nozzles.

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