Patent ID: 7152823
Filing Date: 2006-12-26
Classification: B02C

Abstract:
1. A method for controlling a disc mill assembly of a pulverizing system, the method including the steps: a) directing an adjustable input air stream toward first and second disc blades of the disc mill assembly, each disc blade including a cutting surface with a plurality of radially-extending cutting edges, the first and second disc blades being disposed so the cutting surfaces are in facing operative relation; b) rotating at least the first disc blade; c) directing material to be ground toward the first and second disc blades; d) grinding material between the first and second disc blades into smaller particles; e) monitoring a temperature in a housing of the disc mill assembly at a point spaced from an outer wall of the first and second disc blades, wherein the housing is defined by an enclosure receiving the first and second disc blades in which the material is ground, the housing receiving the adjustable input air stream and the material to be ground; and f) controlling the air stream directing step in response to the temperature monitoring step to maintain a temperature of the material in the disc mill assembly below a predetermined maximum allowable temperature.