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Some basic factors affecting screen
performance in horizontal vibrating screens The
objective of this work is the study of some basic factors affecting the performance of the
horizontal vibrating screens, with the emphasis based on the determination of the most
effective operating conditions for which the maximum screening efficiency can be achieved.
The parameters examined were the intensity of vibration, the percentages of the
characteristic size fractions in the feed, the screen length and the screen aperture in
conjunction with the other parameters. It is found that the screening efficiency is an
exponential function of the screen length and can also be correlated to the intensity of
vibration. It is also established that the amount of the critical size-fractions (critical
undersize and oversize) affect significantly the screen performance. The impact of each
critical size-fraction is different for the various screen apertures but it may also
depend on the non-identical shape characteristics (observed during the preparation process
of the feed material but not examined here) of the corresponding particles contained in
the feed for the various apertures used. |
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