REFINER CONTROL METHOD AND SYSTEM - J & L FIBER SERVICES INC

Title:

REFINER CONTROL METHOD AND SYSTEM

Document Type and Number:

WIPO Patent Application WO2001066854

Kind Code:

A3

Abstract:

A system and method for monitoring and controlling operation of a disk refiner (32). The method regulates operation in response to a process variable (242) preferably in relation to a setpoint (256). The variable can be temperature, pressure, and/or stock consistency, refiner energy, or a variable based thereon. Volumetric flow rate of stock and/or the flow rate of dilution water can be regulated. Where temperature is used, it preferably is a temperature inside the refiner or adjacent the inlet or outlet. Where pressure is used, it preferably is a pressure inside the refiner or adjacent the refiner inlet (114a, 114b) or outlet. Stock consistency can be determined using a sensor (70) upstream or downstream of the refiner or using a sensed parameter in the refiner.

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WO/2010/063310

PROCEDURE AND SYSTEM FOR CONTROL OF A REFINER TO IMPROVE ENERGY EFFICIENCY AND PULP QUALITY

Inventors:

JOHANSSON OLA M (US)

Application Number:

PCT/US2001/007610

Publication Date:

January 24, 2002

Filing Date:

March 08, 2001

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