Customer case:

Reliable and accurate retention measurement at Stora Enso Skoghall

Aug 26, 2016

With Valmet RM3 Stora Enso Skoghall has optimized it's chemical usage and now has a better understanding of what is going on in all five wet ends. Stora Enso Skoghall's BM8 is the biggest liquid packaging board machine in the world, with a production capacity of 465,000 tonnes of five-ply board coated three times on the top side with a starch application on the wire side.

Summary

Location	Stora Enso Skoghall, Sweden
Challenge	Faster to normal run after start up and grade changes.
Solution	Valmet Retention Measurement: On-line retention measurement to each white water, and total and ash consistency measurement. Measurement results and trends available for operator, which are also available to mill data collection system for process analysis purposes.
Results	Optimized chemical usage and better understanding of what is going on in all five wet ends. Operators see continuously each layer of white water, and total and ash consistency status, which enables them to act accordingly. Faster start ups and grade changes. More stable wet ends in the normal run. Better runnability and quality, huge improvements in productivity.
Keywords	Board and paper, Automation, Europe

Retention Measurement

The Valmet Retention Measurement (Valmet RM5) wet end sensor measures total, ash, fines consistencies, and furnish flocculation accurately.

Analyzers and measurements

We in Valmet believe that analyzers and measurements are the key cornerstones for successful process controls and optimization. We offer a wide portfolio of analyzers for different pulping and papermaking process needs.