Commonly Used Mill In Iron Ore Grinding
The Cretaceous plant at the Hill Annex mine of the Jones amp Laughlin Steel Corp. was designed with a wet autogenous mill for grinding low grade iron ore so that it could be concentrated by spirals and flotation cells. The plant, on the west end of the Minnesotas Mesabi Range, went into operation in June 1961, and preliminary operating and metallurgical information describing the performance ...