Density Separation of Non-Ferrous Metals by Means of Jigging and Fluidisation.

摘要

In recent years, the recycling industry developed rapidly, especially in Europe. More and more recycled, or secondary, raw materials are processed on an industrial scale. Though the principles of materials recovery of the recycling industry are similar to those in the primary minerals processing, the wider variation in particle properties, and especially particle shape, demand a more in depth study of the fundamentals of separation. This study especially focuses on the fundamentals of segregation in a fluidized bed and on modeling the jigging process, with special attention for the processing of non-ferrous metal scrap. In addition, the origin and consequences of the wide variety in particle shape associated with this secondary metal scrap are highlighted.