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| DEVELOPMENT AND APPLICATION OF FLOTATION CELL FOR COARSE ORE |
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| DOI： |
| KeyWord:Coarse particles Flotation cell Grate, |
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Liu Huilin Liu Zhenchun (Beijing General Research Institute of Mining and Metallurgy)
Wang Yong Liao Guangdong (Daye Nonferrous Metals Company)
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| Abstract: |
| Coarse particle flotation cell is a kind of pneumo mechanical flotation machine capable of treating full range of fractions from normal size to coarse one It is especially suitable for processing nonferrous,ferrous an non metallic minerals containing coarse fractions Its upper limit for sulfides feed may reach 0 4mm(35% 0 074mm) The features and key techniques of such cell lie in a specially developed new impeller stator system,a unique cell design and a grate for creating suspension layer Under their combined effect at the low rotation speed of impeller a suspension layer of coarse fractions is created in the middle of the cell with a large flow circulation of fine fractions through both sides down to the cell bottom,enabling a deep cell to be constructed more shallow In this way both coarse and fine particles can attach to air bubbles and good conditions are formed for particles floating,thus solving the thorny problem of ready settling of coarse mineral particles during flotation and their poor recovery |
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