At Sappi Finland Operations Oy in Kirkniemi, Finland, Voith has successfully converted the existing Hedemora disc filter in the stock preparation unit to the latest BaglessPlus filter technology, as the company said in the press release received by Lesprom Network.
As the number of discs could be reduced, the disc filter will be well prepared for future increase capacity. The rebuild has also substantially improved the performance of fiber material removal and reduced maintenance costs. Filtrate quality is now more stable due to no more leakage in filter plastic bags.
With the newly installed BaglessPlus disc filter sectors with knock-off nozzles the number of sectors could be reduced from 18 to 16 discs. With full assembly a capacity increase by 30% can be achieved, when future upgrade of the production line is necessary.
Impressed by the concept for the new filter technology with BaglessPlus, Sappi decided to also commission Voith to rebuild an Ahlström disc filter at its mill in Kirkniemi during this year’s scheduled summer shutdown.
Sappi is a leading global producer of premium quality fine paper.
Voith Paper is a Group Division of Voith and is one of the leading partners and pioneers in the paper industry.
