In the field of extractive metallurgy, mineral processing, also known as ore dressing, is the . Before the advent of heavy machinery the raw ore was broken up using . gyratory crushers and cone crushers whereas rod mills and ball mills, closed .. This separation technique can be useful in mining iron as it is attracted to a.
A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing . The ball mill is a key piece of equipment for grinding crushed materials, and it is widely used in production lines for powders such as cement, silicates, .. Mining · Surface · Underground in hard rock · Underground in soft rock.