Enhanced ore comminution process and apparatus

Details Enhanced ore comminution process and apparatus Enhanced ore comminution process and apparatus

2008-03-11

2008-03-11

Francis, Faye (Department: 3725)

Solid material comminution or disintegration

Apparatus

Plural rotary or oscillatory surfaces cooperate with common...

C241S119000

Reexamination Certificate

active

10515916

ABSTRACT:
A method and apparatus for comminuting particulate material by inter-particle comminution in a bed of particles are disclosed. The apparatus includes a vertical roller mill with a horizontal grinding table rotating about a verticle mill axis. At least one grinding roller presses resiliently against a bed of particulate material on the grinding track and applies a compressive force. The geometry of the mill is such that the roller engages the bed of particulate material with a substantially pure rolling action. This minimises shear forces applied to the particle bed and minimises the reduction of fines.

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