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Grinding dispersion device

A technology of grinding and dispersing and spraying head, which is applied in the direction of mixer with rotating stirring device, dissolving, grain processing, etc. It can solve the problems of large space occupation, loose structure and small particle size, so as to improve the efficiency of grinding and dispersing and reduce the amount of adhesion , strong coloring effect

Active Publication Date: 2009-10-28
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the grinding and dispersing equipment equipped with an outer barrel is used for grinding and dispersing materials with high viscosity, it is difficult to achieve timely and sufficient mixing of the materials, and the grinding and dispersing efficiency is very low.
Since the finished product of the organic pigment used to modulate the pigment photoresist of the liquid crystal display color filter requires a small particle size and a concentrated particle size distribution, the dispersion quality and efficiency of the above-mentioned existing equipment cannot meet the production requirements.
In addition, the existing grinding and dispersing equipment with an outer barrel usually uses an external stirring device, which makes the existing grinding and dispersing equipment with an outer barrel still have defects such as loose structure and large space occupation.

Method used

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Examples

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Effect test

no. 1 example

[0024] figure 1 It is a structural schematic diagram of the first embodiment of the present invention. Such as figure 1 As shown, the main structure of this embodiment includes an outer barrel 1, a spray head 6 and a stirring knife head 7 arranged in the outer barrel 1, wherein the spray head 6 is used to eject materials at high speed during high-speed rotation, which is convenient for high-viscosity materials The pulverizing and dispersing; the mixing knife head 7 is used to scrape the material attached to the inner wall of the outer barrel 1 during high-speed rotation, so as to mix the material in time and fully. Because the stirring cutter head 7 of this embodiment is arranged below the spray head 6, therefore, the stirring cutter head 7 can also fully stir and pulverize the material sprayed from the spray head 6 again during the high-speed rotation process, which is beneficial to Improve the efficiency of grinding and dispersing.

[0025] When this embodiment is in use,...

no. 2 example

[0031] This embodiment is a further application of the first embodiment of the present invention. On the basis of the technical solution of the first embodiment of the present invention, in order to increase the amount of grinding material in a single time and fully grind and disperse the material, the outer material cylinder can be connected to the grinding cylinder; on this basis, in order to further improve the grinding and dispersing efficiency, A gas booster for pressurizing high-viscosity materials can be added. Figure 4 It is a structural schematic diagram of the second embodiment of the present invention. Such as Figure 4 As shown, the difference between this embodiment and the first embodiment is that this embodiment also includes a material pipe 3, a grinding cylinder 2, a gas booster 4 and a rotating shaft 5, wherein:

[0032] The outer barrel 1 is used to increase the amount of dispersed material in a single grinding. The lower end of the outer barrel 1 is conn...

no. 3 example

[0040] On the basis of the technical solution of the second embodiment of the present invention, in order to make the structure of the present invention more concise and compact, the relative positions of the spray head and the stirring knife head arranged in the outer barrel can be adjusted.

[0041] Figure 5 It is a structural schematic diagram of the third embodiment of the present invention. Such as Figure 5 As shown, the difference between this embodiment and the second embodiment is that, in this embodiment, the stirring cutter head 7 is located directly above the spray head 6; the stirring cutter head is directly coaxially fixed on the rotating shaft 5, and can Driven to rotate at a high speed along the axis of the outer barrel 1; the stirring blade 71 on the outer edge of the stirring head 7 goes deep into the bottom of the spray head 6 to scrape off the material attached to the inner surface of the outer barrel.

[0042] In order to make the stirring blade under t...

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Abstract

The invention relates to a grinding and dispersing device, which includes an outer material cylinder, and the outer material cylinder is provided with a spray head for spraying materials at high speed during high-speed rotation and a stirring knife head for scraping off materials attached to the inner wall of the outer material cylinder. At least one through hole is arranged on the surface of the stirring knife head. The invention sprays materials at high speed from the injection hole through the spray head in high-speed rotation, which is beneficial to the full dispersion and uniform mixing of materials, and improves the grinding and dispersion efficiency; The amount of material attached to the inner wall of the outer barrel can achieve efficient and uniform grinding of high-viscosity materials, especially organic pigments for pigment photoresists. The organic pigment particles after grinding and dispersion are distributed within a narrow range of 10-100nm, and the particle size The distribution stability is high, which fully meets the requirement of modulating the pigment photoresist of the color filter of a liquid crystal display, and the pigment photoresist prepared by using the organic pigment has the advantages of good fluidity and strong coloring power.

Description

technical field [0001] The invention relates to a grinding and dispersing device, in particular to a grinding and dispersing device for grinding and dispersing high-viscosity organic pigments which can be used to modulate liquid crystal display color filter pigment photoresist. Background technique [0002] Usually, the particle size of the material after the initial synthesis is coarse, generally distributed in a wide particle size distribution range of 10-200 μm. Since the particle size of the material directly affects its coloring strength, transparency, heat resistance, light resistance and solvent resistance, the material after the initial synthesis cannot be directly used to prepare ink, coating and pigment photoresist. At the same time, when the material is ground, if the material is not sufficiently dispersed, it will have a negative impact on the quality stability, viscosity, gloss, transparency and other properties of the ink, coating and pigment photoresist made f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C19/06B02C19/20B01F3/18B01F5/00B01F7/16
Inventor 杨久霞赵吉生李琳
Owner BOE TECH GRP CO LTD
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