A New Air Classification Principle for the Particle Size range <i>d</i> &lt; 5 μm

Tilger, Jochen; Heidenreich, E.

doi:10.1002/ppsc.19910080103

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Introduction and Program Objectives1

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1991

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“…The first attempt involved introducing the feed via the top rotor plate, as shown in Figure 3. This modification was considered likely at the time to lead to unacceptably high rotor wear, although variations of it have been used in at least two new systems [ 4,5] . Furthermore, it nullified what was though to be one of the classifier's major innovations-the highly turbulent dispersion zone.…”

Section: Introduction and Program Objectivesmentioning

confidence: 99%

Air Classification: Computer Models and Experimental Results

Silva¹,

Walsh²,

Johansen

et al. 1991

KONA

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Computer simulations of the flow fields in centrifugal air classifiers have been undertaken in order to improve both the performance and efficiency of the commercially available Acucut air classifier.A !though the simulations have led to a much greater understanding of the nature of the flow likely to prevail in such systems, accurate predictions have been found to be strongly dependent on the assumption of correct inlet flow conditions during the initiation of the simulations.In spite of the fact that these simulations assumed axial symmetry (which is an oversimplification), they have enabled the identification of a number of engineering modifications which have contributed to reducing the cut size, and increasing the efficiency, of an A cucut Laboratory classifier.

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Section: Introduction and Program Objectivesmentioning

confidence: 99%