| 摘要 |
<p>1,059,828. Hydrocyclones; magnetic separation. CENTRE NATIONALE DE RECHERCHES METALLURGIQUES. No. 14, 1963 [Nov. 23, 1962], No. 44976/63. Headings B2J and B2P. A protective sheath of particles is formed on the inside wall of a cyclone by passing a magnetic field through the cyclone. The cyclone may be used for separating ore and gangue particles in suspension in a slurry. The magnetic particles may originate from the slurry or may be specially added thereto. The cyclone may be partly conical and partly cylindrical, or totally cylindrical. It may be made of two cylindrical parts, e.g. of rubber, stiffened by collars and connected by ties; the top of the two cylinders may be made in moulded halves connected by screws. In Fig. 1, a number of magnetic poles are placed near the exit 3 for the heavy and magnetic particles so as to provide a magnetic field converging towards the lateral wall. In Fig. 3, a coil 5, the central radial plane of which coincides with the begining of the exit duct 3, provides a magnetic field which converges downwards towards the duct. In Fig. 4, two coils 6, 7 spaced by a ring 8 of soft iron or ferromagnetic alloy are shown. Performance figures are given.</p> |
