The design of the drum separator with superconducting magnets

This paper describes the open gradient drum type magnetic separator with superconducting magnet system to develop technologies for dry separation of low magnetic mineral raw material of 4-0 mm (medium size) up to 25-0 mm (coarse size). The separation zone is 1200 mm/spl times/50 mm with the magnet system-wrap angle equal to 90/spl deg/, the magnetic field in the separation zone is at the level of 4.5 T, the average value of the magnetic forces is 120 T/sup 2//m and the capacity is about 100 t/h. The results of the optimization and numerical calculations of thermophysical processes in magnetic and cryogenic systems are given. The technological developments of the design of some separator units are presented. The paper also presents the techno-economic indices of the separator application at the ore-mining operations.