Vibration monitoring

An older online system from SPM will be replaced with the multifunctional online system Intellinova. A total of 77 transducer positions with vibration and shock pulse transducers will be replaced with new accelerometers. The monitoring system will use the patented High Definition technology HD ENV which provides an early warning of deteriorating mechanical conditions.

Ulf Isaksson, predictive maintenance supervisor, and Peter Forsström, predictive maintentance inspector, say: "Since we run the Intellinova online system at PM10 soft calender, and it is working well, we decided to develop the system further. One of its strengths is that we are able to see bearing damage/locking collar looseness very early with the measuring technique HD ENV, which in turn means that we can prepare our maintenance operations well in advance and perform them during planned conditions, i.e. planned stops.”

Stora Enso Kvarnsveden also implements online monitoring with systems from SPM on the winder belonging to PM12, the soft calendar at PM10 and the supercalender at PM8 with good results. Online monitoring and periodic measurements with the portable instrument Leonova Emerald from SPM is done on selected measuring points throughout the pulp and paper mill; for example, bearing condition is monitored with SPM HD on several of the wire and wash presses which provide pulp for paper machine PM12.

Stora Enso Kvarnsveden is one of Sweden’s largest paper mills. The mill produces improved newsprint and magazine paper on three paper machines. The production capacity is approximately 750,000t/year.