| Autor: |
E.M. Beunder, Peter Carlo Rem |
| Rok vydání: |
1999 |
| Předmět: |
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| Zdroj: |
International Journal of Mineral Processing. 57:73-81 |
| ISSN: |
0301-7516 |
| DOI: |
10.1016/s0301-7516(99)00007-1 |
| Popis: |
The kinetics of screening for differently shaped particles can be used to separate particles according to their size, as well as to their shape. During a batch screen experiment the number of particles on the screen as a function of time was counted by using a CCD-camera and image analysing software. The screening kinetics of cylindrical particles shows a sudden increase at a well defined frequency and after an optimum it reaches a constant value. The optimal frequency of the screen was shown to depend on the length of the cylinder. The measured screening kinetics could well predict the grade and recovery of a separation based on the screening kinetics. In a first attempt to identify the critical elements of a physical model for the observed screening kinetics, it was shown by experiment, that the distribution of particle orientations on a screen is similar to that on a closed surface. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect