A modular emulsifier for high speed dispersion of ink powder raw materials

Abstract

This utility model discloses a modular emulsifier for high-speed dispersion of ink powder raw materials, belonging to the field of ink powder raw material emulsification. It includes an ink powder raw material emulsification tank, with a liquid delivery pipe and an ink powder raw material input pipe fixedly connected to both sides of the top of the tank, and a discharge pipe fixedly connected to the bottom. By setting a rotor ring with gradually varying thickness and cooperating with a first fixed plate with V-shaped grooves and triangular protrusions, a multi-stage shearing zone from coarse to fine is formed. The material is initially crushed and wetted in a larger gap, and then undergoes increasingly stronger shearing and grinding in the V-shaped grooves with gradually narrowing gaps. This progressive dispersion process overcomes the problem that traditional single-stage structures cannot completely disperse hard powder agglomerates, significantly improving the dispersion fineness and uniformity of the ink, and ensuring product quality.

Description

Technical Field

[0001] This utility model belongs to the field of ink powder raw material emulsification technology, specifically relating to a modular emulsifier for high-speed dispersion of ink powder raw materials. Background Technology

[0002] In the field of ink manufacturing, the efficient and uniform dispersion of powdered pigments (such as titanium dioxide, carbon black, etc.) into liquid binders is a crucial production step. The dispersion quality directly determines the ink's tinting strength, gloss, stability, and printability. High-speed dispersion emulsifiers are the core equipment for completing this process. They generate powerful shearing forces, impact forces, and cavitation effects through the interaction of a high-speed rotating rotor and a stationary stator, thereby achieving the breaking and dispersion of powder agglomerates. For example, CN208194180U discloses a dual-axis high-shear emulsifier, including a motor, a machine head, a connecting rod, and a support. The upper part of the connecting rod is fixedly connected to the lower part of the support, and the lower part of the connecting rod is fixedly connected to the machine head. The motor is connected to the top of a first main shaft and a second main shaft. The ends of the first main shaft and the second main shaft are respectively provided with rotating slices, which extend into the machine head. Several rotating slices are alternately arranged on the first main shaft and the second main shaft. This utility model uses dual-axis to drive rotating slices for emulsification, which can better refine and disperse powders and small particles in liquids, and achieve emulsification homogenization. However, in the process of using the above scheme, the stator and rotor are a single-stage shearing structure. For ink, which often contains powders with high hardness and easy agglomeration, single-stage shearing is often difficult to completely break up the aggregates, which can easily lead to insufficient dispersion and uneven distribution. Moreover, it is inefficient when processing high-viscosity materials. Utility Model Content

[0003] The purpose of this invention is to provide a modular emulsifier for high-speed dispersion of ink powder raw materials, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a modular emulsifier for high-speed dispersion of ink powder raw materials, comprising an ink powder raw material emulsification tank, wherein a liquid delivery pipe and an ink powder raw material input pipe are fixedly connected to both sides of the top of the ink powder raw material emulsification tank, and a discharge pipe is fixedly connected to the bottom of the ink powder raw material emulsification tank; an emulsification module is provided inside the ink powder raw material emulsification tank, and the emulsification module includes a drive motor fixedly connected to the top of the ink powder raw material emulsification tank.

[0005] In a preferred embodiment, the drive motor is located inside the ink powder raw material emulsification tank and has a rotating shaft fixedly connected to the outside of the output shaft. Four mounting plates are connected in a ring with equidistant bolts around the axis of the rotating shaft on the inner wall of the ink powder raw material emulsification tank.

[0006] In a preferred embodiment, three rotor sleeves are fixedly connected to the outside of the rotating shaft at equal intervals. Each rotor sleeve is fixedly connected to the outside of a rotor ring. Each mounting plate has a corresponding first fixed plate bolted to the side facing the rotor ring.

[0007] In a preferred embodiment, the thickness of the rotor ring decreases as it is further away from the rotor sleeve. A V-shaped groove that is adapted to the shape of the first fixed plate and does not contact the rotor ring is provided on the side of the first fixed plate. A connecting groove is provided on the end of the V-shaped groove facing the first fixed plate.

[0008] In a preferred embodiment, the rotor ring has multiple annular grooves at both the top and bottom, triangular protrusions corresponding to the annular grooves are provided on the inclined surfaces on both sides of the V-shaped grooves, a V-shaped annular cavity is provided inside the rotor ring, and annularly distributed through holes are provided at both the top and bottom of the rotor ring.

[0009] In a preferred embodiment, the rotating shaft is externally fixedly connected to a helical rotor between every two rotor sleeves, and a triangular second fixed plate is provided on the side of the mounting plate facing the helical rotor.

[0010] In a preferred embodiment, the bottom of the ink powder raw material emulsification tank is a conical feeding section, and the bottom end of the rotating shaft is fixedly connected to a reverse shaftless spiral plate located inside the conical feeding section. The reverse shaftless spiral plate has a conical cross-section and is located above the discharge pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This modular emulsifier for high-speed dispersion of ink powder raw materials uses a rotor ring with gradually varying thickness to work in conjunction with a first stationary plate with V-grooves and triangular protrusions, forming a multi-stage shearing zone from coarse to fine. The material is initially crushed and wetted in the larger gaps, and then undergoes increasingly stronger shearing and grinding in the V-grooves with gradually narrowing gaps. This progressive dispersion process overcomes the problem that traditional single-stage structures cannot completely disperse hard powder agglomerates, significantly improving the fineness and uniformity of ink dispersion and ensuring product quality.

[0012] This modular emulsifier for high-speed dispersion of ink powder raw materials, by combining a spiral rotor and a second fixed plate in the middle, generates a strong axial suction force when rotating at high speed. This forcefully draws the material from the upper and central parts of the ink powder raw material emulsification tank into the high-shear zone, thereby avoiding the material "short circuit" and flow dead zone problems common in traditional equipment, and ensuring that all materials in the tank are fully and uniformly processed.

[0013] This modular emulsifier for high-speed dispersion of ink powder raw materials uses a conical bottom for the ink powder raw material emulsification tank and a reverse shaftless spiral plate. The rotating spiral plate generates an upward stirring force in the conical space, continuously lifting the powder that has settled to the bottom of the tank and sending it back into the main dispersion zone for recycling. This greatly improves the raw material utilization rate, prevents damage to the equipment caused by precipitation and hardening, and reduces the burden on the downstream filtration process. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a side sectional view of the structure of this utility model; Figure 3 This is a side view of the emulsification module; Figure 4 This is a partial cross-sectional view of the emulsification module.

[0015] In the diagram: 1. Ink powder raw material emulsification tank; 101. Infusion pipe; 102. Ink powder raw material input pipe; 103. Discharge pipe; 2. Drive motor; 3. Rotating shaft; 301. Rotor sleeve; 302. Rotor ring; 303. Ring groove; 304. V-shaped ring cavity; 305. Through hole; 306. Spiral rotor; 307. Reverse shaftless spiral plate; 4. Mounting plate; 401. First fixed plate; 402. V-shaped groove; 403. Connecting groove; 404. Triangular protrusion; 405. Second fixed plate. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figures 1-4This utility model provides a modular emulsifier for high-speed dispersion of ink powder raw materials, including an ink powder raw material emulsification tank 1. A liquid delivery pipe 101 and an ink powder raw material input pipe 102 are fixedly connected to both sides of the top of the ink powder raw material emulsification tank 1. A discharge pipe 103 is fixedly connected to the bottom of the ink powder raw material emulsification tank 1. An emulsification module is provided inside the ink powder raw material emulsification tank 1. The emulsification module includes a drive motor 2 fixedly connected to the top of the ink powder raw material emulsification tank 1. A rotating shaft 3 is fixedly connected to the outside of the output shaft of the drive motor 2 inside the ink powder raw material emulsification tank 1. Four mounting plates 4 are connected in a ring with equidistant bolts around the axis of the rotating shaft 3 in the inner wall of the ink powder raw material emulsification tank 1. Three rotor sleeves 301 are fixedly connected at equal intervals to the outside of the rotating shaft 3. Each rotor sleeve 301 is fixedly connected to the outside of a rotor ring 302. Each plate 4 has a first fixed plate 401 bolted to the side facing the rotor ring 302. The rotor ring 302 is thinner the further away from the rotor sleeve 301. The first fixed plate 401 has a V-shaped groove 402 that is adapted to its shape and does not contact the rotor ring 302. The V-shaped groove 402 has a connecting groove 403 at the end facing the first fixed plate 401. The rotor ring 302 has multiple annular grooves 303 at the top and bottom. The two inclined surfaces of the V-shaped groove 402 have triangular protrusions 404 corresponding to the annular grooves 303. The rotor ring 302 has a V-shaped annular cavity 304 inside. The rotor ring 302 has annularly distributed through holes 305 at the top and bottom. The rotating shaft 3 is fixedly connected to a spiral rotor 306 outside between every two rotor sleeves 301. The mounting plate 4 has a triangular second fixed plate 405 on the side facing the spiral rotor 306. During the ink manufacturing process, liquid binder is fed into ink powder raw material emulsification tank 1 through liquid delivery pipe 101. At the same time, powdered pigment is also fed into ink powder raw material emulsification tank 1 through ink powder raw material input pipe 102. At this time, drive motor 2 is not started. The two materials are initially mixed in ink powder raw material emulsification tank 1, but have not yet reached a state of uniform dispersion. When the drive motor 2 is started, its output shaft drives the rotating shaft 3 to start rotating at high speed. Since the rotor sleeve 301 is fixedly connected to the rotating shaft 3 and the rotor ring 302 is fixed to the rotor sleeve 301, the rotor ring 302 will rotate at high speed along with the rotating shaft 3. At the same time, the spiral rotor 306 and the reverse shaftless spiral plate 307 also rotate with the rotating shaft 3. Please see Figure 3 and Figure 4The material first enters the area with a larger gap between the rotor ring 302 and the first fixed plate 401. Since the thickness of the rotor ring 302 decreases as it gets further away from the rotor sleeve 301, the gap between the rotor ring 302 and the first fixed plate 401 gradually changes during rotation. The larger gap allows the material to enter more smoothly. The rotation of the rotor ring 302 generates an initial shearing force on the material, which initially breaks up larger powder agglomerates. At the same time, the liquid binder wets the powdered pigment, preparing for subsequent fine dispersion. As the materials flow, they enter a region where the gaps gradually narrow. The V-shaped groove 402 on the first fixed plate 401 is adapted to the shape of the rotor ring 302 but does not contact it. The design of the V-shaped groove 402 makes the materials subject to stronger compression and shearing when passing through. The ring groove 303 on the rotor ring 302 and the triangular protrusions 404 on the inclined surfaces on both sides of the V-shaped groove 402 cooperate with each other to further enhance the shearing and grinding effect. When the materials pass through this region, the powder agglomerates are further dispersed, the particle size becomes smaller, and the dispersion is more uniform. The V-shaped annular cavity 304 inside the rotor ring 302 and the annularly distributed through holes 305 at the top and bottom enable the material to form a circulating flow inside the rotor ring 302. This circulating flow increases the contact time and frequency between the material and the rotor ring 302 and the first fixed plate 401, which helps to improve the dispersion effect and ensures that all materials can be fully subjected to shearing and grinding. Please see Figure 3 and Figure 4 When the spiral rotor 306 located between every two rotor sleeves 301 on the rotating shaft 3 rotates at high speed, it generates a strong axial suction force. This suction force can strongly suck the material in the upper layer and center of the ink powder raw material emulsification tank 1 into the high shear area where the spiral rotor 306 and the triangular second fixed plate 405 are located. The triangular second fixed plate 405 and the spiral rotor 306 cooperate with each other to shear and mix the sucked material again, avoiding the material "short circuit" and flow dead zone problems common in traditional equipment, and ensuring that all materials in the tank can be fully and uniformly processed.

[0019] In this embodiment, the bottom of the ink powder raw material emulsification tank 1 is a conical feeding part, and the bottom end of the rotating shaft 3 is fixedly connected to a reverse shaftless spiral plate 307 located inside the conical feeding part. The reverse shaftless spiral plate 307 has a conical cross section and is located above the discharge pipe 103. The bottom of the ink powder raw material emulsification tank 1 is set as a conical feeding section. The reverse shaftless spiral plate 307, which is fixedly connected to the bottom of the rotating shaft 3, is located inside the conical feeding section. The reverse shaftless spiral plate 307 has a conical cross section. During the rotation, it will generate an upward stirring force in the conical space. This stirring force can continuously lift the powder that has settled to the bottom of the tank upward and send it back into the main dispersion zone for circulation processing, preventing the powder from settling and hardening at the bottom of the tank. After the material is fully dispersed and mixed in the ink powder raw material emulsification tank 1 to achieve the required dispersion fineness and uniformity, the discharge pipe 103 is opened to discharge the dispersed ink from the discharge pipe 103 and enter the next production process. The rotor ring 302 with gradually varying thickness cooperates with the first fixed plate 401 with V-shaped grooves 402 and triangular protrusions 404 to form a multi-stage shearing zone from coarse to fine. The material undergoes preliminary crushing, fine shearing and grinding in different gap zones in sequence, overcoming the problem that traditional single-stage shearing structures cannot completely disperse hard powder agglomerates. This progressive dispersion process can make the powder particle size smaller and the dispersion more uniform, significantly improving the dispersion fineness and uniformity of the ink, thereby ensuring the quality of the ink product and improving the ink's coloring power, gloss and stability. The V-shaped ring cavity 304 and through hole 305 inside the rotor ring 302 promote the circulation of the material inside the rotor ring 302, increase the contact opportunity between the material and the shearing components, further improve the dispersion effect, and make the dispersion more thorough and uniform. The combination of the spiral rotor 306 and the triangular second stationary plate 405 generates a strong axial suction force when rotating at high speed, which can forcefully draw materials from different positions in the tank into the high shear zone for mixing. This design avoids the phenomenon of material "short circuit" and flow dead zone in traditional equipment, ensuring that all materials in the tank can be fully and uniformly processed, improving the mixing uniformity of materials, and helping to ensure the consistency of ink performance. The bottom of the ink powder raw material emulsification tank 1 is set as a cone shape and equipped with a reverse shaftless spiral plate 307. The rotating spiral plate generates an upward stirring force in the conical space, continuously lifting the powder that has settled to the bottom of the tank and sending it back into the main dispersion zone for recycling. This design greatly improves the raw material utilization rate, reduces the waste of raw materials caused by powder sedimentation, prevents damage to the equipment caused by sedimentation hardening, extends the service life of the equipment, reduces the maintenance cost of the equipment, reduces the burden on the downstream filtration process, and improves the efficiency of the entire production process.

[0020] The working principle and usage process of this utility model are as follows: First, start the drive motor 2, and its output shaft drives the rotating shaft 3 to rotate at high speed. The rotor sleeve 301, rotor ring 302, spiral rotor 306 and reverse shaftless spiral plate 307 rotate accordingly. The material enters the area with a larger gap between the rotor ring 302 and the first fixed plate 401. The rotation of the rotor ring 302 generates initial shearing force, breaking up powder agglomerates. At the same time, the liquid binder soaks the powdered pigment, and the material enters the area with a smaller gap. The V-shaped groove 402 cooperates with the rotor ring 302, and the ring groove 303 and the triangular protrusion 404 work together to enhance the shearing and grinding effect, break up the powder agglomerates, reduce the particle size, and disperse evenly. The V-shaped ring cavity 304 and the through hole 305 in the rotor ring 302 allow the material to circulate, increase the contact time and number of times, and improve the dispersion effect. The high-speed rotation of the spiral rotor 306 generates axial suction, which draws the upper and central materials into the high shear zone, where they cooperate with the triangular second fixed plate 405 for further shearing and mixing, avoiding material "short circuits" and flow dead zones. The bottom of the ink powder raw material emulsification tank 1 is conical. The reverse shaftless spiral plate 307 rotates to generate upward stirring force, which lifts the powder at the bottom of the tank and sends it into the main dispersion zone for circulation treatment to prevent sedimentation and hardening. After the material is fully dispersed and mixed, the discharge pipe 103 is opened to discharge the ink into the next process.

[0021] It should be noted that each pipe in the above scheme is equipped with a corresponding valve on the outside.

[0022] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular emulsifier for high-speed dispersion of ink powder raw materials, comprising an ink powder raw material emulsification tank (1), characterized in that: The top two sides of the ink powder raw material emulsification tank (1) are fixedly connected to a liquid delivery pipe (101) and an ink powder raw material input pipe (102). The bottom of the ink powder raw material emulsification tank (1) is fixedly connected to a discharge pipe (103). The interior of the ink powder raw material emulsification tank (1) is provided with an emulsification module, which includes a drive motor (2) fixedly connected to the top of the ink powder raw material emulsification tank (1).

2. A modular emulsifier for high-speed dispersion of ink powder raw materials according to claim 1, characterized in that: The drive motor (2) is located inside the ink powder raw material emulsifying tank (1) and a rotating shaft (3) is fixedly connected to the outside of the output shaft. Four mounting plates (4) are connected in a ring with the axis of the rotating shaft (3) as the center in the inner wall of the ink powder raw material emulsifying tank (1).

3. A modular emulsifier for high-speed dispersion of ink powder raw materials according to claim 2, characterized in that: The rotating shaft (3) is fixedly connected to three rotor sleeves (301) at equal intervals. Each rotor sleeve (301) is fixedly connected to a rotor ring (302). Each mounting plate (4) facing the rotor ring (302) is bolted with a corresponding first fixed plate (401).

4. A modular emulsifier for high-speed dispersion of ink powder raw materials according to claim 3, characterized in that: The greater the distance between the rotor ring (302) and the rotor sleeve (301), the smaller its thickness. The first fixed plate (401) has a V-shaped groove (402) on the side facing the rotor ring (302) that is adapted to its shape and does not contact it. A connecting groove (403) is provided on the end of the V-shaped groove (402) facing the first fixed plate (401).

5. A modular emulsifier for high-speed dispersion of ink powder raw materials according to claim 4, characterized in that: The rotor ring (302) has multiple annular grooves (303) at its top and bottom. The V-shaped groove (402) has triangular protrusions (404) on its two inclined surfaces corresponding to the annular grooves (303). The rotor ring (302) has a V-shaped annular cavity (304) inside. The rotor ring (302) has annularly distributed through holes (305) at its top and bottom.

6. A modular emulsifier for high-speed dispersion of ink powder raw materials according to claim 5, characterized in that: The rotating shaft (3) is externally fixedly connected to a helical rotor (306) between each two rotor sleeves (301), and the mounting plate (4) has a triangular second fixed plate (405) on the side facing the helical rotor (306).

7. A modular emulsifier for high-speed dispersion of ink powder raw materials according to claim 6, characterized in that: The bottom of the ink powder raw material emulsification tank (1) is a conical feeding part. The bottom end of the rotating shaft (3) is fixedly connected to a reverse shaftless spiral plate (307) located inside the conical feeding part. The cross section of the reverse shaftless spiral plate (307) is conical, and the reverse shaftless spiral plate (307) is located above the discharge pipe (103).

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