... , one of the gravity separation equipments, which can be used to separate iron, tungsten, tantalum, niobium, gold, coal, monazite, rutile, ... and noise etc.spiral chute machine working principle:In order to have a good separation, there should be a difference in ... parts. The feed range, in percent solids, to a spiral ranges from 20% solids up to 40% solids. Depending upon the material characteristics, a ...