Field Report - Dynamic balancing of rolls
Although a roll is statically balanced, it may have an eccentric center of gravity which cannot be detected by simple static balance. This will become noticeable when the roll speed is increased, and an end-for-end motion occurs. Dynamic unbalance requires investigation to determine which end, or both, require counter-weighting.
Ash treatment with crystallization technology at the OKI mill
At the APP OKI pulp and paper mill the recovery boiler ash is treated in an ash crystallization plant to keep potassium and chlorine at the desired low levels in the mill’s recovery cycle.
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