Re-entrant circulating stream jet - directs feed material and carrier fluid into circular chamber, transmitting resultant circular velocity to classifying vortex

摘要

The comminuting and classifying appts. of the re-entrant circulating stream jet type includes a vortex chamber and jet. The feed includes a central conical recess in one wall of the chamber. A coaxial circular chamber opens into the recess and unit to direct the material and gaseous carrier fluid into the chamber tangential to the wall of the chamber, so that the material and carrier fluid is added to the vortex with a rotative velocity. The appts. is also provided with a jet and anvil comminution of feed material and/or recirculating material. The chamber includes an annular shoulder for skimming undesirable particles in the feed material. The chamber includes an annular shoulder for skimming undesirable particles in the feed material.