A theoretical analysis of particle trajectories in a crossbelt magnetic separator

Stradling A.W. (1994) A theoretical analysis of particle trajectories in a crossbelt magnetic separator. International Journal of Mineral Processing, 42 1-2: 1-13. doi:10.1016/0301-7516(94)90017-5


Author Stradling A.W.
Title A theoretical analysis of particle trajectories in a crossbelt magnetic separator
Journal name International Journal of Mineral Processing   Check publisher's open access policy
ISSN 0301-7516
Publication date 1994
Sub-type Article (original research)
DOI 10.1016/0301-7516(94)90017-5
Volume 42
Issue 1-2
Start page 1
End page 13
Total pages 13
Subject 1900 Earth and Planetary Sciences
1906 Geochemistry and Petrology
1909 Geotechnical Engineering and Engineering Geology
Abstract A two-dimensional solution to Laplace's equation was used to obtain a map of the magnetic field between the two poles of a crossbelt separator. With this flux map it was possible to calculate the trajectory of a weakly magnetic particle between the main belt and crossbelt surfaces. A critical susceptibility for particle recovery at that pole was then determined using an iterative technique. This exercise was repeated for a wide range of main belt speeds and operating pole air gaps. The ratio between the critical susceptibility for a moving belt and the critical susceptibility for a stationary belt was found to be relatively constant over the normal range of pole air gaps for a given belt speed. A belt speed correction factor, γ, was therefore defined such that the critical susceptibility for recovery, Xc *, at a given pole and belt speed can be calculated from: χ*c= γμog Bzdz/d where μ0 is the permeability of free space, g is the gravitational constant, Bz is the maximum value of the vertical component of flux density at the main belt surface and dBz dz is the vertical component of field gradient at that point.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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