Dry granulating machine powder granulation technology as one of the most main branch powder process, along with the environmental protection requirement and production process to improve the degree of automation, it shows more and more importance. "Powder granulation" has become an inevitable trend of world powder processing technology. Dry granulating machine is the use of dry rolling technology, the powdery material moisture ≤ 5% were compressed into a tablet or block, then by grain crushing, sieving, the massive materials into line with granular material requirements. Dry rolling granulator mainly rely on external pressure, so that the material forced two relatively rotating roller clearance through mandatory compressed into tablets, massive, in rolling process, the actual density material can increase 1.5~3 times, so as to achieve the required strength of - particles. The strength of processing of particles on the powder product, its significance is mainly reflected in three aspects:
A, reduce dust pollution, improve working conditions.
Two, meet the requirements of the production process, such as increasing the porosity and specific surface area, improve heat transfer etc..
Three, improve the physical properties of products (such as liquidity, permeability, bulk density) to avoid the subsequent operation process (drying, sieving, measurement) and the use of the process (measurement, and other ingredients) adverse effects appear segregation, pulsating, caking, bridging, reduce pollution, improve the appearance, improve liquidity, easy storage and transportation the solubility, control, control of the porosity and specific surface area and so on, creates conditions for improving the automation of production and use of the process and closed operation |
