Wind bauxite beneficiation

The present invention discloses a method of beneficiation of bauxite wind, using feeding, grinding, classification, process flow step concentrates and tailings processing bauxite dry grinding, the grinding process by adjusting appropriate, bauxite achieve selective grinding, the grinding of bauxite powder was classified by wind, low-containing alumina fine particles are separated off, as a product feeding coarse Bayer alumina plant. Aspect of the present invention using dry vertical mill, grinding with high efficiency, and the internal sorting by air, less over-grinding phenomenon, is simple and easy to adjust the grinding size, greatly improving the efficiency of the dressing.