Correct handling of the press felts results in longer life and lower expenses. To achieve this it's important to measure the felt's quality and to find weak points in the press section. The measurement results help paper producers to take the right action at the right time. A new PC-software, L&W Multiview 3D, can display 3-dimensional images of water variations in felts including frequency analysis of machine directional data and report felt length.
Regular measurements with L&W Felt Moisture Meter are the key to optimal dewatering in the press section and lead to fewer problems with machine disturbances and downtime - which in turn means cost savings. By measuring the felt's water content, before and after the press, dewatering can be optimized. Effective dewatering in the press section can reduce energy consumption in the drying section and increase production considerably; a 1% increase of dry content in the press section gives a 4% reduction in energy use in the dryer section. To optimize dewatering, action should be taken in the press section to avoid additional energy costs in the dryer section.
"A paper machine standing idle is expensive; a large paper machine not producing can cost in the order of Euro 20,000 per hour. To reduce unplanned stops is thus very important" says Lars Kånge, Product Manager of L&W Felt Moisture Meter.
"Using L&W Felt Moisture Meter makes it easier to find weak points in the press section, thus enabling you to take the right action at the right time. A two hour per year reduction in unplanned machine downtime could mean that the investment in an L&W Felt Moisture Meter has paid for itself. Control of the process delivers a return on investment", continues Lars Kånge.
Mr. Lars Kånge, Product Manager, AB Lorentzen & Wettre, Sweden.
Phone: +46 8 477 91 05 | Mobile: + +46 70 583 62 39 | E-mail: