Gravity spiral chute is a scientific product based on our years of ore beneficiation experience and it is the best concentrating equipment. It is especially better for concentrating sand ore, riverside, sand and rill. It is featured with less space, easy operation, even concentration, clear separation, and high efficiency. The product is made of the chlorine plastic. The advantages are properly suitable for the changing of the feeding size and density, granularity, grade, no noise.
The product is suitable for separating the fine materials with granularity of 0.3-0.02mm iron ore, limestone, chromites, trotline, zirconium, retiles, monazite, centimes, wolfram ore, stannary, tantalum materials, niobium minerals and other nonferrous metal, rare metal and nonmetal.
When the ore pulp flows near the carved groove edge, vortex will be generated; ore bed will be thickened at the same time, which strengthens the loose stratification effect and the coarse but light minerals separated out from the middling band cross the groove to move outwards. The bottom heavy mineral flows to the inner edge along the groove guide. As a result, the middling quality ore volume decreases and the concentrate metal recovery rate is improved. The following table lists the contrast results of Gongchangling feint hematite ore’s grade sand setting industrial test (one coarse, one concentrated process) done by spiral chute with and without carved groove.