NIOSHTIC-2 Publications Search - 10007063 - Magnetic Belt ...
The Bureau of Mines conducted magnetic belt cobbing field-scale research with the Inland Steel Mining Company and the Minnesota Department of Natural Resources. Sixty-seven field tests were conducted on three iron ore types, ranging from 10 to 24 pct magnetic iron, and at two different ore sizes, namely the secondary crusher discharge (3 x 0 inches) and Tertiary crusher discharge (1 x 0 inch).