Magnetic separator with helical classifying path
US4085039A · kind A · utility
Inventor
Key dates
| Filing date | May 24, 1976 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | May 24, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C2201/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A continuous flow magnetic separator is disclosed for classifying magnetic and paramagnetic particles as concentrate from their mixture with ambient tailings. The separator includes a helical classifying path interior of a non-magnetic, non-conductive conduit, with the conduit wound along a path having an "uphill-downhill" slope with respect to the ambient gravitational bias. A magnetic field (preferably generated by an AC or DC energized coil) is aligned substantially coincident to the axis of generation of the helical path. This magnetic field is confined interior of a high permeability (preferably laminated) magnetic field conducting core having two elements. The first element, to which the coil is attached, is an outer cylindrical conductor (preferably closed at the bottom) defining interiorly thereof a cylindrically shaped inner volume. The second element is a cylindrical rotor having serrated edges and mounted for rotation about the axis of the helical path. The rotor defines between the outer cylindrical conductor and its rotating serrated edges a cylindrical gap into which the helical classifying conduit is placed. Particles to be classified are placed into the helical clas…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.