Table of Contents
Magnetic and Electrical Separation
Volume 5 (1993), Issue 2, Pages 111-129
http://dx.doi.org/10.1155/1993/60381

Analysis of a Cyclic Action of the Superconducting Matrix Separator

University of Mining and Metallurgy, Institute of Electric Power Engineering, Cracow, Poland

Received 3 May 1993

Copyright © 1993 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An essential feature of a matrix separator is the cyclic course of operation. It results from periodic renewal of accumulative properties of the matrix after its loading with magnetic material. The cleaning of the matrix takes place when the magnet is out of action or the matrix is outside the field, both of these methods are critical problems for the functioning of the direct current superconducting magnet which is the source of the magnetic field in the separator. These problems are related to power losses in the winding and, as a result, to temperature rise in the superconductor. A mathematical model which enables to compute variation ranges of the parameters of the separator is presented in this paper. These ranges appoint specifications of safe (i.e. failure–free) operation of the separator under dynamic conditions. The results of the analysis of the parameters of the current supply as well as the matrix velocity (when it is moved within the separator channel) are presented. The analytical findings will be compared with experimental observations.