Comminution of material

Solid material comminution or disintegration – Processes

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241 3, 241 17, 241 18, 241 22, 241 23, 241 27, 241 29, B02C 1318, B02C 1918, B02C 2324

Patent

active

048528110

ABSTRACT:
Material is comminuted in a substantially dry state in a chamber (4) as a result of agitation by a rotor. During the process, gas is admitted to the chamber (4) through a foraminous base (8) to flow upwardly in a uniform manner across the cross-section of the chamber. Pulses of gas are directed periodically at the material through inlets (15) to prevent agglomeration of the material. The pressure of the gas admitted through the inlets (15) is higher than that admitted through the foraminous base (8). Surface active agents may be added to the material, also to prevent agglomeration, as well as, or instead of the use of pulsed gas.

REFERENCES:
patent: 3168989 (1965-02-01), Heinemann
patent: 3202365 (1965-08-01), Barr, Jr. et al.
patent: 3325105 (1967-06-01), Veltman
patent: 3604634 (1971-09-01), Windle

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