Refiner control method and system

Details Refiner control method and system Refiner control method and system

2005-09-06

2005-09-06

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

C241S030000, C241S034000

Reexamination Certificate

active

06938843

ABSTRACT:
A system and method for monitoring and control operation of a rotary disk refiner. A characteristic of stock in the refining zone is monitored and used to adjust a parameter, such as dilution water, feed screw speed and/or refiner gap to keep some variable substantially constant, close to a setpoint, within a range of the setpoint, close to a setpoint profile based on a distribution of a characteristic over the refining zone or a setpoint profile range. Refiner disk bar angle can be optimized to reduce refining zone temperature and energy use. Thereafter, the control method can be employed. One control method attempts to keep specific energy substantially constant by keeping a ratio between load and production substantially constant. Load is kept substantially constant by regulation dilution flow to keep refining zone temperature substantially constant. The feed screw is regulated to keep production substantially constant.

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