Significance of ultrafine powder classification

Ultrafine powder is not only the basis for the preparation of structural materials, but also a material with special functions. It is widely used in fine ceramics, electronic components, bioengineering treatments, new printing materials, high-quality refractory materials, and materials related to fine chemicals. And many other fields. With the more and more widespread application of ultrafine powder in modern industry, the status of powder classification technology in powder processing is becoming more and more important.

In the crushing process, only part of the powder meets the particle size requirements. If the products that have reached the requirements are not separated in time, and the products that do not meet the particle size requirements are pulverized together, it will cause energy waste and over-crushing of some products. .

In addition, after the particles are refined to a certain degree, the phenomenon of crushing and agglomeration occurs, and the crushing process is even worse due to the agglomeration of the particles. For this reason, products should be classified during the preparation of ultra-fine powders. On the one hand, the particle size of the product should be controlled within the required distribution range, and on the other hand, the products with the required particle size in the mixture can be separated in time to return the coarse particles. Re-pulverization to improve the pulverization efficiency and reduce energy consumption.

With the increase in the fineness of the powder required and the increase in output, the difficulty of grading technology is getting higher and higher. The problem of powder grading has become the key to restricting the development of powder technology, and it is one of the most important basic technologies in powder technology. one. Therefore, it is necessary to study the technology and equipment of ultrafine powder classification.