| 摘要 |
A method and apparatus for selectively comminuting particles of a frangible material for the production of filter aid, the apparatus including an air-conveying system for carrying entrained particles of varying masses, a venturi for accelerating the air stream and entrained particles, a duct for receiving the accelerated air stream and particles, and impact bars mounted in the duct for selectively fragmenting the entrained particles. The impact bars are positioned in the accelerated air stream to establish adverse pressure fields which classify the entrained particles and which provide impact surfaces to fragment particles greater than a predetermined mass, the rest of the particles being deflected around the bars by the action of the adverse pressure fields.
|
