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| Anàlisi de Rentabilitat× | Distribució de Rosin-Rammler× | |
|---|---|---|
| Camp | Enginyeria de mines | Enginyeria de mines |
| Família | Process / pipeline | Process / pipeline |
| Any d'origen≠ | 1950 | 1933 |
| Autor original≠ | Mining Industry Practice (1930s-1960s) | Paul Rosin and Erich Rammler |
| Tipus≠ | Separation analysis by density fractionation | Empirical probability distribution for crushed material fineness |
| Font seminal≠ | McCullough, R. B. (1963). The theoretical basis and practical application of coal washability studies. Transactions of the Society of Mining Engineers, 226, 13-26. link ↗ | Rosin, P., & Rammler, E. (1933). The laws governing the fineness of powdered coal. Journal of the Institute of Fuel, 7, 29-36. link ↗ |
| Àlies | Coal Washability, Density Separation Analysis, Float-Sink Analysis | Rosin-Rammler Model, RRS Distribution, Weibull Distribution (particle size) |
| Relacionats | 3 | 3 |
| Resum≠ | Washability analysis is a laboratory method that determines the feasibility and efficiency of density-based separation for coal or mineral beneficiation. By fractionating ore or coal into density bins using sink-float tests and assaying each fraction, engineers can optimize design of separation plants (dense-medium cyclones, jigs, spirals) and predict clean product quality. Washability curves are essential tools for pre-feasibility and detailed design studies. | The Rosin-Rammler Distribution, introduced by Paul Rosin and Erich Rammler in 1933, is an empirical probability distribution that describes the particle size distribution of ground or crushed materials. It characterizes fineness by two parameters: the characteristic size (d-prime) and the uniformity index (n). This distribution is remarkably accurate for mineral processing streams and is ubiquitous in comminution engineering. |
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