A preparation method and device for nanoscale dispersion liquid of inorganic materials

Abstract

The invention discloses a method and a device for preparing an inorganic material nanoscale dispersion liquid; it includes a stirring paddle arranged in a sealed container; the stirring paddle is connected to an external motor through a rotating shaft, and the external motor drives the stirring paddle to rotate in the sealed container; The cross-section of the agitating paddle is a friction turntable with a V-shaped structure; the outlet at the bottom of the sealed container is connected to the inlet of the filter box through a pipe; the outlet of the filter box is connected to the liquid storage tank, high-pressure pump and nozzle in turn through the pipeline; during the preparation process SiC particles are accompanied by nanomaterials and high-speed friction rotating discs for high-speed shearing and collision. Due to high jet pressure, high linear velocity, high rotational speed, and short grinding time, the production efficiency is greatly improved. It overcomes the problem of low production efficiency caused by the low pressure of the existing grinding equipment or the low grinding speed.

Description

Technical field [0001] The present invention relates to the field of nanomaterial dispersion technology, in particular to an inorganic material nanoscale dispersion preparation method and apparatus thereof. Background [0002] In the existing technology, with the development of nanomaterials science, in the biological, chemical, pharmaceutical, electronic, new energy and other industries, in order to maximize the exploration of the ultimate physical and chemical properties of materials, it is often necessary to disperse or grind materials at the high fineness and nanoscale. Nanoscale dispersions such as nanoemulsions and nano suspensions have a large specific surface area due to their small size, and show excellent properties in terms of dissolution rate, viscosity, transparency, utility, and stability. [0003] It is widely used in various industries such as medicine, food, mechanical processing, construction, printing and dyeing, petrochemical, and daily chemicals, and the dema...

AI Technical Summary

Problems solved by technology

[0008] Compared with similar equipment power, the online nano ultra-high-speed high-shear emulsification disperser has a high speed and a line speed of 50 m / s, but the formed pressure is low and the impact kinetic energy is relatively small, so it needs to be cycled many times Shear dispersion, long time-consuming and low processing efficiency; Although the homogeneous disperser for low-temperature nanomaterial preparation has high processing pressure and high line speed, its principle is to use plunger to pressurize, and the material is sprayed, impacted, crushed and dispersed through a narrow gap , the production capacity is limited, and the material is easy to block; the nano sand mill without screen and shaft seal has low speed, line speed and pressure. It takes a long time and low efficiency to achieve the grinding effect of the material particle size.

[0009] The problems of the above-mentioned equipment are low pressure, slow line speed, insufficient activity of grinding media, resulting in insufficient grinding of materials, long dispersion time of nanomaterials, unsatisfactory effect and low production capacity

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