On the application of vibratory disk feeders for silos |
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Authors: | Prof Dr Ir Friedrich Johann Carl Rademacher |
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Affiliation: | (1) The Bulkoholics, Borne, The Netherlands |
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Abstract: | Originally vibratory disk-feeders and-reclaimers were designed with rather small diameters. They were mainly applied in chemical
process plants, and were mostly flush mounted underneath bins of modest size, say up to 1 m diameter. Over the past decades
they have been increasingly used for bins of much larger diameter, some via a hopper and some not. The latter may cause an
unfortunate combination of the most important parameters, leading to malfunctioning and even to feeder jam. This work shows
that basically vibratory disk feeders should be installed via a hopper, which for practical reasons becomes feasible above
diameters of approximately 0.8 m, depending on the material to be reclaimed and the required mass flow. Feeders of considerable
size, up to 2.5 m, may very well operate satisfactorily when properly mounted underneath a hopper. Nonfunctioning of vibratory
disk feeders is mostly caused by a combination of too bad flowability of the bulk material to be reclaimed; too high a feeder
load and wrong silo fill procedures and feeder power-up procedures. |
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Keywords: | |
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