Customer case:

Reliable and accurate retention measurement at Stora Enso Skoghall

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

Valmet Retention Measurement

Valmet Retention Measurement (Valmet RM3) and Valmet Wet End Analyzer (Valmet WEM) continue the products development path which was chosen late 1980’s, in order to provide totally new measurement alternatives for paper machine wet end process.

Analyzers and measurements

Valmet analyzers and measurement solutions for challenging process areas.