Refining member clash control method

Details Refining member clash control method Refining member clash control method

2007-12-18

2007-12-18

Francis, Faye (Department: 3725)

Solid material comminution or disintegration

Apparatus

With automatic control

C241S261200

Reexamination Certificate

active

11293963

ABSTRACT:
A control system with a sensor mounted in direct mechanical connection to a non-rotating refining member so that the sensor is responsive to axial vibration movement of the support, and an analog to digital converter directly connected to the output of the sensor without filtering. The control system also includes a controller connected to the analog to digital converter and responsive to the analog to digital converter to compare the amplitude of the output signal from the sensor to a baseline value based on the level of vibration associated with the pulp refiner when it is operating without plate clashing. When the signal exceeds the baseline value, an action is taken to help alleviate the plate clashing.

REFERENCES:
patent: 3893631 (1975-07-01), Fisher et al.
patent: 4233600 (1980-11-01), Rogers et al.
patent: 4627578 (1986-12-01), Whyte
patent: 6840470 (2005-01-01), Bankes et al.

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