Beloit refiner manual6/1/2023 This produces a resulting set point representative of a percent of maximum tons per day of dry pulp and is used to control the power in kilowatts which is directly proportional to horse power applied to the drive motor of the refiner. The factor is equal to 1 at 50% consistency transmitter output and is equal to the maximum consistency over the mean consistency at 100% consistency transmitter output. In the present invention this problem is solved by treating the flow input as a percentage value BCD since the flow meters range from zero to a maximum and the consistency input is converted to a factor because consistency transmitters have a range from a minimum value consistency to a maximum value. The present invention comprises a programmable refiner controller which utilizes a microprocessor, whereby it is desired to combine two mass flow inputs which together represent the total mass flow and to relate the total mass flow to a power set point resulting in uniform and equal changes in power with actual changes in mass of dry pulp.
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June 2023
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