TWO-STAGE MICRONIZER AND PROCESS FOR REDUCING OVERSIZE PARTICLES USING A TWO-STAGE MICRONIZER

摘要

Integrated first stage (30) and second stage (40) reduction mechanisms reduce coal, minerals, biomass, and other materials. A portion of the reductive work is done in the first stage by passing centrally fet feed material (F) centifugally from rotating rings (24a) to counter rotating rings (24b) with destructive effects. The resulting material significantly reduced in size, subsequently is stripped of oversize in the second stage by passing through closely spaced and specially contoured final pair of annular rings (42a, b) or crushing elements between which particles larger than the limited space are crushed.