METHOD AND APPARATUS FOR DETERMINATION OF REFINER MECHANICAL PULP PROPERTIES

摘要

The invention concerns a method and apparatus for real-time measurement ofrefiner mechanical pulp quality index suchas freeness, According to the method, refiner mechanical pulp transported in asteam-phase carrier is illuminated withelectromagnetic radiation, and the change in the radiation spectrum caused byrefiner mechanical pulp is detected. According to themethod, the change in the radiation spectrum caused by refiner mechanical pulpis measured at a minimum number of fourwave length bands and the measured intensities are computationally processedto obtain the desired index of quality.