Flotation Equipment is described in terms of transport processes


Posted April 17, 2018 by mixingtank

The performance of a Flotation Equipment is described in terms of a number of transport processes that one would expect a flotation machine designer to exploit to achieve efficient mineral separation.
 
The performance of a Flotation Equipment is described in terms of a number of transport processes that one would expect a flotation machine designer to exploit to achieve efficient mineral separation. The magnitude of these transport processes, and the mechanisms giving rise to them are claimed to be poorly understood. As a result, proponents of various types of machine have been able to present exceedingly favorable reports of their machine's performance without justifying these rigorously in terms of a set of firmly established design principles.

Theory for the upper limit of coarse particle flotation suggests that a quiescent flow field is necessary to prevent the particles from becoming detached from the bubbles. A liquid-fluidized bed provides a suitable environment. The flotation feed is introduced into the fluidized bed, and air bubbles are dispersed in the fluidizing water. Coarse particles attach to the bubbles rising through the bed and are lifted into the froth layer that is maintained on top of the cell in the usual way. Particles of galena up to 1 mm in diameter have been recovered in such a bed, while for particles of lower density such as quartz and coal, the upper limit for flotation has been extended to at least 2 mm and 5.6 mm respectively.

The fluidized bed technology provides major advantages beyond the ability to recover coarse particles currently lost in existing operations. Thus, if the upper flotation limit can be extended, the top size for grinding can be raised, with significant reductions in energy costs. Liberation of the values is the key limitation. Also, a fluidized bed flotation cell can accept a feed with much higher percent solids, leading to significant reductions in water requirements.

Flotation Machine has promoted a wide scope of research activities ranging from fundamental chemistry and hydrodynamic studies to studies of industrial operations. In general, fundamental studies have been mainly related to ideal situations. In recent years, however, large efforts have been focusing on achieving a better insight into the actual sub-processes provided by the development of new and more sophisticated instrumentation.

If you want to know more information, please visit this website: http://www.goldenmachine.net/product/flotation-equipment/
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Issued By mixingtank
Country China
Categories Industry , Manufacturing
Last Updated April 17, 2018