Device for circularly grinding and dispersing and method thereof

Abstract

The invention relates to a cycle grind dispersing device, which comprises a sand cylinder used for grind dispersing treatment of materials, storage cylinders used for storing materials and a materialcirculating tube communicating the sand cylinder and the storage cylinder. The invention is characterized in that the storage cylinders are at least two outer material cylinders respectively used forstoring materials treated by the sand cylinder in different grind dispersing cycles; one end of each outer material cylinder is communicated with the material circulating tube and is provided with aninlet valve used for controlling the materials to enter; the other end is communicated with the sand cylinder and is provided with an outlet valve used for controlling the materials to flow out. The invention also relates to a cycle grind dispersing method, which ensures that all the materials stored in the outer material cylinders are fully grinded and evenly dispersed, while the materials afterthe grind dispersing treatment has small particle size, equal particle size without materials with large particle size and with narrow particle size distribution, thus remarkably improving the dispersing quality and efficiency of the materials and having the advantages of large material quantity of a single grind dispersing, high quality of grind dispersing, high efficiency and so on.

Description

technical field [0001] The invention relates to a circulating grinding and dispersing device and method, in particular to a circulating grinding and dispersing device and method for increasing the amount of dispersed materials in a single grinding and being used for preparing organic pigments for color filter pigment photoresist of liquid crystal displays. Background technique [0002] In the production of ink, paint and pigment photoresist, the selected materials are usually ground and dispersed, so that the ground and dispersed materials meet the particle size distribution requirements of the finished product. The particle size of the material after the initial synthesis is relatively 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 dir...

AI Technical Summary

Problems solved by technology

If the existing equipment is used to increase the amount of grinding and dispersion, the particle size of the material must be distributed within a narrow range of 10nm-100nm, the production cycle will be long and the energy consumption will be huge

Therefore, the dispersing quality and dispersing efficiency of the grinding and dispersing equipment in the prior art are low, and cannot meet the special-purpose products with small particle size requirements and concentrated particle size distribution, such as the production of organic pigments used to modulate the color filter pigment photoresist of liquid crystal displays Require

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