News within the industry of pulp and paper, Jun, 20 2018
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New online solution improves lime mud moisture measurement

Photo: Valmet
Photo: Valmet
Published by
Simon Matthis - 06 Mar 2018

Valmet has developed an innovative online solution for measuring lime mud moisture - Valmet Lime Mud Moisture Measurement. It can be used to monitor lime mud filter performance on the conveyor belt to improve lime mud quality. The new solution is also applicable as a feedforward measurement for lime kiln power control. Through more accurate power control, it is possible to optimize energy consumption and gain significant energy savings.

 

"The problem with laboratory measurements is that samples are taken so seldom that measurement data cannot be used for power control. It is possible only with an online measurement," says Timo Laurila, Business Manager, Recovery Analyzers and Advanced Process Controls, Automation, Valmet.

 

Valmet Lime Mud Moisture Measurement is a non-contacting measurement that provides the moisture content of lime mud. It features an infrared sensor with a special optical design, resulting in excellent measurement accuracy. The solution is based on Valmet's long experience in moisture measurement technology.

 

This new lime mud moisture measurement has already proven its capabilities in pulp mills. According to customers, its correlation with laboratory measurements has either been on a very high level or the lime mud moisture measurement is even more accurate. Lime mud filter operations can be seen immediately in the moisture measurement level. Moisture sensor cleaning is not needed, not even in a dusty environment. The measurement can be used in lime filter maintenance planning, too.

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