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Title: Gas fluidized-bed stirred media mill

A gas fluidized-bed stirred media mill is provided for comminuting solid ticles. The mill includes a housing enclosing a porous fluidizing gas diffuser plate, a baffled rotor and stator, a hollow drive shaft with lateral vents, and baffled gas exhaust exit ports. In operation, fluidizing gas is forced through the mill, fluidizing the raw material and milling media. The rotating rotor, stator and milling media comminute the raw material to be ground. Small entrained particles may be carried from the mill by the gas through the exit ports when the particles reach a very fine size.
  1. (Tuscaloosa, AL)
Issue Date:
OSTI Identifier:
United States of America is represented by Dept. of Energy (Washington, DC) NETL
Patent Number(s):
US 5680996
Research Org:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
Country of Publication:
United States
gas; fluidized-bed; stirred; media; mill; provided; comminuting; solid; ticles; housing; enclosing; porous; fluidizing; diffuser; plate; baffled; rotor; stator; hollow; drive; shaft; lateral; vents; exhaust; exit; ports; operation; forced; raw; material; milling; rotating; comminute; ground; entrained; particles; carried; reach; fine; size; fluidizing gas; diffuser plate; drive shaft; raw material; media mill; entrained particles; gas exhaust; stirred media; fluidized-bed stirred; housing enclosing; gas fluidized-bed; gas diffuser; /241/