| Autor: |
Öney, Özcan, Tanrıverdi, Mehmet |
| Předmět: |
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| Zdroj: |
Journal of Ore Dressing; 2012, Vol. 14 Issue 27, p11-18, 8p |
| Abstrakt: |
Recently enhanced gravity separators are used widely for the enrichment of fine coal instead of froth flotation. A Knelson concentrator is a high rotational speed separator which is used for fine gold recovery from grinding circuits.. It is also used for the enrichment of fine coal. In this study, application of central composite design (CCD) for modeling and optimization of some operating variables on the Knelson separator for fine coal cleaning is discussed. Four operating variables, namely rotational speed, fluidization water, solid ratio and collecting time were changed during the experiments based on CCD. A total of 30 experiments were done using knelson concentrator on Armutçuk fine coal obtained from Zonguldak coal basin -Turkey. Mathematical model equations were obtained by computer simulation program using SPSS 16. R2 values are obtained as 0.776 and 0.979 for ash content of clean coal and organic recovery respectively. This study has shown that CCD could be used for modeling of Knelson concentrator effectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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