Magnetic drum separator with an electromagnetic pickup magnet having a core in a tapered shape
US8561807B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 2012 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | May 3, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C2201/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A magnetic drum separator, for separating ferrous and non-ferrous materials from a material stream. The magnetic drum separator comprising an outer shell that is rotatable around a central axis by a drive mechanism. The outer shell having a tubular length parallel to the central axis and a circular cross-section perpendicular to the central axis. An electromagnet pickup magnet positioned at a fixed location within the circular cross-section has a cross-section perpendicular to the central axis. The pickup magnet has a first end closest to the inner circumference of the outer shell and a second end located near the central axis. The pickup magnet comprises a core, with a backbar abutting it at the second end. The core comprises a plurality of blocks of different widths, in a cross-section perpendicular to the central axis, with the narrowest block at the first end and the widest block abutting the backbar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.