ABB launches image-based online system for monitoring fiber properties to help control pulp mixture quality

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ABB has launched L&W Fiber Online – a reliable, repeatable and cost-effective online system for measuring, monitoring and controlling significant fiber quality variables in paper stock preparation and pulp production. This helps pulp and paper customers to save production costs by optimizing fiber usage, as well as reducing energy consumption through elimination of over-refining, and to improve quality by generating uniform pulp furnish for the paper, board or tissue machine.
Compared with traditional indirect measurements such as Canadian Standard Freeness (CSF) and Schopper-Riegler (SR), the measurements based on fiber images provided by L&W Fiber Online provide a more detailed and accurate information on the status of pulp quality. Fiber properties are categorized and presented as mean values and statistical distributions of width, length, shape factor, two classes of fines (P and S) and macro fibrillation.

L&W Fiber Online solves the problem of detecting quality issues caused by fiber variations too late in the production process to take action. By discovering variations early in the process as early as in stock preparation, it is possible to take corrective actions to produce paper, board or tissue that meets production specifications. This system measures fiber properties according to international standards ; it is based on ABB’s well-known L&W Fiber Tester Plus, a laboratory instrument which is used by hundreds of papermakers to track their pulp quality and is a preferred tool by research centers and universities around the world. The system also allows for multiple sampling points with a single instrument, reducing initial investment and ongoing maintenance costs. For mixed furnishes, the optional Blend software analyzes the ratio of reference fiber species in a fiber mix, making it possible to save raw materials when switching grades or during start-up.
“We can now offer a robust unit that tells the complete story of the fibers in real time, which gives our customers an easy way to pinpoint and follow trends on furnish quality, and at the same time help them to reduce variations in stock preparation or pulp production, as well as saving energy” says Anna Schärman, Global Product Manager, ABB Pulp & Paper products.

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