1.Spiral chute is to make seperations of useful minerals from gangues by use of the different particles to gravity hydraulic pressure and friction in the multi-force field through dynamic contrifugal flowing membrane of slurry produced on the inclined surface of spiral based on the differences of useful mineral and gangue in specific gravity,particle size and shape.


2. Spiral chute (glass fiber reinforced plastics spiral chute) is applicable to metal and non-metal ores with adequate density difference, like iron, chromite, pyrite, tin ore, tungsten, tantalum, niobium, gold ore, colliery, monazite, rutile and Zirconium.