A high-efficiency dispersion device for preparing water-based pigment pastes
The pretreatment mechanism, which combines a screw and an extrusion block, solves the problem of uneven pigment mixing, achieves efficient pigment dispersion and stability, improves the quality and efficiency of pigment pastes, and reduces energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG MOCAIDE NEW MATERIALS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, pigments with high viscosity tend to form high-water-content filter cakes, resulting in uneven mixing of pigments in the solution. This leads to low efficiency in subsequent sand milling and dispersion processes, making it difficult for pigment particles to achieve the desired fineness, affecting the quality and stability of the color paste. Furthermore, multiple manual grinding processes are required, increasing energy consumption.
The pretreatment mechanism, which combines a screw and an extrusion block, initially breaks down the pigment through the serrated extrusion surface and through-hole structure of the extrusion block. Combined with the rotation of the stirring blades, it forms turbulent and annular flow, achieving uniform dispersion of the pigment and reducing manual intervention.
It improves the uniformity and stability of pigment dispersion, increases work efficiency, reduces energy consumption, and ensures the quality and consistency of pigment paste.
Smart Images
Figure CN224422684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-based pigment paste preparation, and in particular to a high-efficiency dispersion device for preparing water-based pigment paste. Background Technology
[0002] In pigment paste processing technology, the first step is to pre-disperse and sand-mill the pigment to disperse the pigment particles to meet the requirements of pigment paste processing. When using pigment paste, it is necessary to fully disperse the pigment paste and solvent, which requires the pigment paste dispersion device to process it.
[0003] Pigments are initially dispersed in a pre-dispersion mechanism. Due to their high viscosity, they tend to form a high-water-content filter cake, resulting in uneven mixing of the pigments in the solution. This leads to low efficiency in subsequent sand milling and dispersion processes, making it difficult for pigment particles to achieve the desired fineness, thus affecting the final quality and stability of the color paste. Furthermore, the pigments after pre-dispersion contain a large number of large particles, which easily lead to sedimentation. This requires manual operation and repeated grinding of the pigments, reducing work efficiency and increasing energy consumption. Therefore, a high-efficiency dispersion device for the preparation of water-based pigment color pastes is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a high-efficiency dispersion device for preparing water-based pigment pastes, which aims to improve the problems in the prior art where "the pigment viscosity is high and it is easy to form a high water content filter cake, the pigment is not mixed evenly in the solution, resulting in low efficiency of the subsequent sand milling and dispersion process".
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency dispersion device for preparing water-based pigment paste, comprising a tank body, a pretreatment tank fixedly connected to the top of the tank body, a feeding cylinder fixedly connected to the right side of the pretreatment tank, the bottom of the feeding cylinder being connected to the right side of the pretreatment tank via a connecting pipe, a processing mechanism being provided inside the pretreatment tank, the processing mechanism comprising a screw, the screw being threadedly connected to the inner wall of the pretreatment tank, a pressure plate being rotatably connected to the bottom of the screw, the pressure plate being slidably connected to the inner wall of the pretreatment tank, a compression spring being fixedly connected to the bottom of the pressure plate, a first extrusion block being fixedly connected to the bottom of the compression spring, the first extrusion block being slidably connected to the inner wall of the pretreatment tank, a second extrusion block being in contact with the bottom of the first extrusion block, the second extrusion block being rotatably connected to the inner wall of the pretreatment tank, and a stirring mechanism being provided at the bottom of the tank body.
[0006] As a further description of the above technical solution:
[0007] The bottom of extrusion block one and the top of extrusion block two are both provided with extrusion surfaces.
[0008] As a further description of the above technical solution:
[0009] Both the surface of extrusion block one and the surface of extrusion block two are provided with through holes.
[0010] As a further description of the above technical solution:
[0011] A handwheel is fixedly connected to the top of the screw.
[0012] As a further description of the above technical solution:
[0013] The stirring mechanism includes a drive motor, which is fixedly connected to the bottom of the tank. A bevel gear is fixedly connected to the left side of the output shaft of the drive motor.
[0014] As a further description of the above technical solution:
[0015] The stirring mechanism also includes a rotating rod, which is fixedly connected to the bottom of the extrusion block two, and stirring blades are fixedly connected to the surface of the rotating rod.
[0016] As a further description of the above technical solution:
[0017] The stirring mechanism also includes a second bevel gear, which is fixedly connected to the bottom of the rotating rod and meshes with the first bevel gear.
[0018] As a further description of the above technical solution:
[0019] A conveying pipe is fixedly connected to the right side of the tank, a solenoid valve is installed on the surface of the conveying pipe, and a flow meter is fixedly connected to the top of the conveying pipe.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the extrusion block two rotates relative to the extrusion block one by the drive motor. The sawtooth extrusion surfaces of the extrusion block one and the extrusion block two perform preliminary crushing, extrusion and dispersion of the raw material. At the same time, the pore structure of the through holes promotes material flow and forms turbulence, accelerates the contact wetting of pigment particles with the dispersion medium, improves the dispersion uniformity of pigment, and increases the final quality and stability of the pigment product.
[0022] 2. In this utility model, the slurry is made to roll and flow in a ring shape by rotating the stirring blades in the tank. The particles on the surface of the slurry sink to the bottom of the vortex along the spiral trajectory, further deagglomerating the fine particles. At the same time, the upper and lower jets formed on the outside of the blades realize the full circulation and tumbling of the slurry, so that the pigment will not sink to the bottom, improving the uniformity of stirring, reducing the amount of manual intervention, and thus improving work efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0024] Figure 2 This is a schematic cross-sectional view of the overall three-dimensional structure of this utility model;
[0025] Figure 3 This is a three-dimensional exploded view of the processing mechanism in this utility model.
[0026] Legend:
[0027] 1. Tank body; 2. Pretreatment tank; 3. Feeding cylinder; 4. Connecting pipe; 101. Screw; 102. Pressure plate; 103. Compression spring; 104. Extrusion block one; 105. Extrusion block two; 106. Through hole; 107. Extrusion surface; 108. Handwheel; 10. Processing mechanism; 11. Agitating mechanism; 111. Drive motor; 112. Bevel gear one; 113. Rotating rod; 114. Bevel gear two; 115. Agitating blade; 17. Conveying pipe; 18. Solenoid valve; 19. Flow meter. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Reference Figure 1 , Figure 2 One embodiment of this utility model is a high-efficiency dispersion device for preparing water-based pigment paste, comprising a tank body 1, a pretreatment tank 2 fixedly connected to the top of the tank body 1, a feeding cylinder 3 fixedly connected to the right side of the pretreatment tank 2, pigment being fed into the pretreatment tank 2 through the feeding cylinder 3, the bottom of the feeding cylinder 3 being connected to the right side of the pretreatment tank 2 through a connecting pipe 4, and a processing mechanism 10 being provided inside the pretreatment tank 2.
[0030] Reference Figure 1 , Figure 2The processing mechanism 10 includes a vertically arranged screw 101, which is threadedly connected to the inner wall of the pretreatment tank 2. A handwheel 108 for convenient rotation of the screw 101 is fixedly connected to the top of the screw 101. A pressure plate 102 is rotatably connected to the bottom of the screw 101. The pressure plate 102 is slidably connected to the inner wall of the pretreatment tank 2. A compression spring 103 is fixedly connected to the bottom of the pressure plate 102. A pressing block 104 is fixedly connected to the bottom of the compression spring 103. By setting the compression spring 103, the pressure plate 102 and the pressing block 104 tend to move away from each other. The pressing block 104 is slidably connected to the inner wall of the pretreatment tank 2. The pressing block 104 slides up and down. The bottom of the pressing block 104 contacts a pressing block 2 105.
[0031] Reference Figure 2 , Figure 3 The second extrusion block 105 is rotatably connected to the inner wall of the pretreatment tank 2. The second extrusion block 105 can only rotate around its own central axis and cannot slide up and down. The bottom of the first extrusion block 104 and the top of the second extrusion block 105 are both provided with extrusion surfaces 107. The serrated extrusion surfaces 107 of the first extrusion block 104 and the second extrusion block 105 perform preliminary crushing of the raw materials. The surfaces of the first extrusion block 104 and the second extrusion block 105 are both provided with through holes 106 for pigments to pass through. The bottom of the tank 1 is provided with an agitation mechanism 11.
[0032] Reference Figure 1 , Figure 2 The stirring mechanism 11 includes a drive motor 111, which is fixedly connected to the bottom of the tank 1. A bevel gear 112 is fixedly connected to the left side of the output shaft of the drive motor 111. The stirring mechanism 11 also includes a vertically arranged rotating rod 113, which is fixedly connected to the bottom of the extrusion block 105. A stirring blade 115 is fixedly connected to the surface of the rotating rod 113. The drive motor 111 drives the rotating rod 113 to rotate through the meshing of the bevel gear 112 and the bevel gear 114. The stirring blade 115 performs three-dimensional and uniform mixing of the material in the tank 1.
[0033] Reference Figure 1 , Figure 2 The stirring mechanism 11 also includes a second bevel gear 114, which is fixedly connected to the bottom of the rotating rod 113. The second bevel gear 114 meshes with the first bevel gear 112. A conveying pipe 17 for discharging uniformly mixed pigment is fixedly connected to the right side of the tank body 1. A solenoid valve 18 is provided on the surface of the conveying pipe 17. A flow meter 19 is fixedly connected to the top of the conveying pipe 17. The solenoid valve 18 controls the opening and closing of the conveying pipe 17, and the flow meter 19 monitors the output in real time to ensure the consistency of pigment batches.
[0034] Working principle: In use, pigments and additives are added into the feeding cylinder 3. The pigments in the feeding cylinder 3 enter the pretreatment tank 2 through the connecting pipe 4. Then, the operator rotates the handwheel 108 to drive the screw 101 to rotate. Since the screw 101 is threadedly connected to the inner wall of the pretreatment tank 2, when it moves downward, it compresses the compression spring 103 through the bottom pressure plate 102, causing the extrusion block 104 to move downward and make close contact with the top extrusion surface 107 of the extrusion block 2 105. At this time, the surfaces of extrusion block 104 and extrusion block 2 105... The through holes 106 form staggered channels. The drive motor 111 drives the second extrusion block 105 to rotate relative to the first extrusion block 104. The serrated extrusion surfaces 107 of the first extrusion block 104 and the second extrusion block 105 perform preliminary crushing of the raw materials. The pigment is sheared, squeezed and dispersed in the relative movement of the first extrusion block 104 and the second extrusion block 105. At the same time, the pore structure of the through holes 106 promotes material flow and forms turbulence, accelerates the contact wetting of pigment particles with the dispersion medium, initially breaks up the agglomerated pigment particles and improves the dispersion uniformity.
[0035] The dispersed material then enters the tank 1 through the connecting pipe 4. At this time, the drive motor 111 starts, and its output shaft drives the bevel gear 112 to rotate. Through the meshing transmission with the bevel gear 114, the drive rod 113 and the stirring blade 115 rotate at high speed. The stirring blade 115 rotates in the tank 1, causing the slurry to exhibit a rolling ring flow. The particles on the surface of the slurry sink to the bottom of the vortex along the spiral trajectory, further deagglomerating the fine particles. At the same time, the upper and lower beams formed on the outer side of the blades achieve full circulation and tumbling of the slurry, so that the pigment does not sink to the bottom, improving the uniformity of stirring.
[0036] As the dispersion process continues, the viscosity of the material in tank 1 gradually increases, and a laminar flow state is formed below the stirring blades 115. Liquid layers with different velocities achieve micro-dispersion through viscosity shear force, ultimately achieving a stable dispersion effect. When the pigment paste meets the process requirements, the solenoid valve 18 opens, and the uniform pigment paste, precisely monitored by the flow meter 19, is output through the conveying pipe 17. During the pigment preparation process, the adjustable extrusion pressure of extrusion block one 104 and extrusion block two 105 can dynamically optimize the pretreatment intensity according to the pigment particle size or viscosity, improve the uniformity of the water-based pigment paste, and avoid flocculation and sedimentation problems.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency dispersion device for preparing water-based pigment pastes, comprising a tank (1), characterized in that: A pretreatment tank (2) is fixedly connected to the top of the tank body (1). A feeding cylinder (3) is fixedly connected to the right side of the pretreatment tank (2). The bottom of the feeding cylinder (3) is connected to the right side of the pretreatment tank (2) through a connecting pipe (4). A processing mechanism (10) is provided inside the pretreatment tank (2). The processing mechanism (10) includes a screw (101). The screw (101) is threadedly connected to the inner wall of the pretreatment tank (2). A pressure plate (102) is rotatably connected to the bottom of the screw (101). 02) The pressure plate (102) is slidably connected to the inner wall of the pretreatment tank (2). A compression spring (103) is fixedly connected to the bottom of the pressure plate (102). A compression block (104) is fixedly connected to the bottom of the compression spring (103). The compression block (104) is slidably connected to the inner wall of the pretreatment tank (2). The bottom of the compression block (104) contacts a compression block (105). The compression block (105) is rotatably connected to the inner wall of the pretreatment tank (2). A stirring mechanism (11) is provided at the bottom of the tank (1).
2. The efficient dispersion device for preparing water-based pigment paste according to claim 1, characterized in that: The bottom of the first extrusion block (104) and the top of the second extrusion block (105) are both provided with extrusion surfaces (107).
3. The efficient dispersion device for preparing water-based pigment paste according to claim 1, characterized in that: Both the surface of the first extrusion block (104) and the surface of the second extrusion block (105) are provided with through holes (106).
4. The efficient dispersion device for preparing water-based pigment paste according to claim 1, characterized in that: A handwheel (108) is fixedly connected to the top of the screw (101).
5. The efficient dispersion device for preparing water-based pigment pastes according to claim 1, characterized in that: The stirring mechanism (11) includes a drive motor (111), which is fixedly connected to the bottom of the tank (1). A bevel gear (112) is fixedly connected to the left side of the output shaft of the drive motor (111).
6. The efficient dispersion device for preparing water-based pigment paste according to claim 5, characterized in that: The stirring mechanism (11) also includes a rotating rod (113), which is fixedly connected to the bottom of the extrusion block (105), and stirring blades (115) are fixedly connected to the surface of the rotating rod (113).
7. The efficient dispersion device for preparing aqueous pigment paste according to claim 6, characterized in that: The stirring mechanism (11) also includes a second bevel gear (114), which is fixedly connected to the bottom of the rotating rod (113) and meshes with the first bevel gear (112).
8. The efficient dispersion device for preparing water-based pigment pastes according to claim 1, characterized in that: A conveying pipe (17) is fixedly connected to the right side of the tank (1), and a solenoid valve (18) is provided on the surface of the conveying pipe (17). A flow meter (19) is fixedly connected to the top of the conveying pipe (17).