VERTICAL POWDER MILL

The utility model discloses a vertical powder mill, mainly comprising a vertical housing 2, a movable steel ring 3, pressure rolls 4, feed ports 5, a discharge port 7, a discharge board 6, a spring tensioning device 1 and a power transmission part. The steel ring 3 which is perpendicular to the water surface and is provided with a concave curved surface is fixed in the housing 2 in an outer diameter direction of the inner direction by three or a plurality of pressure rolls 4 which are fixed on the housing by the spring tensioning device and provided with a convex curved surface structure. The autorotation of the pressure rolls drives the steel ring to revolve to realize milling movement. The both ends of the steel ring are provided with the feed ports, and the lower part of the housing is the discharge port. The utility model has the advantages of small size, high efficiency, low noise and small powder dust, realizing automatic discharge, and being an ideal device for milling powder of the nonmetallic material.