APPARATUS FOR CLEANING PARTICULATE MATERIALS

摘要

Apparatus for removing clay, soil, silt and other excess or non-suitable contaminants adhering to particulate materials, comprises an elongate conduit (1 ) whose longitudinal axis is set an angle to the horizontal whereby particulate material can pass through the conduit under the influence of gravity. The wall of the conduit has a plurality of fine apertures (2) therethrough extending along the conduit and arranged around the conduit. A pressure chamber (5) surrounds the conduit (1), the apertures (2) communicating with the chamber. Water is supplied under pressure to the chamber to create fine high pressure jets which dislodge any contaminants from the particles.