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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 6    No. 4    December 1996

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DEVELOPMENT OF BELT TYPE MATRIX PERMANENT HIGH GRADIENT MAGNETIC SEPARATOR
Long Weiyang, Peng Liang, Li Shunrong, Feng Dingwu, Peng Shiying

Institute of Mineral Engineering,Central South University of Technology, Changsha 410083

Abstract:A belt type matrix permanent high gradient magnetic separator (BTMPHGMS) with middle field strength has been developed. The high gradient matrix belt circulates through the separating zone, thus providing continuous separation of magnetic minerals from nonmagnetic ones, which improves the process of the intermittent operation of common HGMS. The operating parameters are based on test work. The magnetic system consists of NdFeB permanent magnets with stored energy 255 kJ/m3 and magnetizing induction intensity 1.1T. A special magnetic circuit structure with iron-cladding is adopted to provide an optimal design, and a simple equation is derived to calculate the magnetic field strength on the basis of magnetic circuit law. The typical industrial scale tests show that the separating efficiency and performance of the BTMPHGMS are
similar to those of the HGMS with electromagnetic field, but the manufacture and operating costs of the former are much lower.

 

Key words: HGMS matrix belt permanent magnet kaolin purification

ISSN 1672-7029
CN 43-1423/U

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