NIR measurement within pressurized environment: bring light into your digester or cooker!
Measurement within the Digester was not possible so far, due to the environmental conditions. So far, any information about e.g. the water content of chips in the digester was a calculation based on external measurements plus some assumptions. As a result, the values used were often not very accurate and difficult to use for plant automation.
APOS and ANDRITZ, combining their expertises, started a development process in 2018. The joint team developed the ultimate alternative to the formerly used rough estimates on moisture content within the refiner.
Now, moisture content of the chips/particles in the digester or plug screw can be measured at high accuracy. Also, the ratio of soft to hardwood is measured to
- optimize the dryer by having the moisture values as early in the process as possible,
- reduce your production costs (electrical energy, steam costs, costs for gluing and drying, costs for wear parts,…
- achieve highest possible production rates / increased line speeds – speeded up production.
The perfect Industry 4.0 tool to bring transparency into your cooking/digesting process, also in other industries.