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Smart FlowScanner measurement solution

Optimized process performance by knowing key parameters of the raw material

The Smart FlowScanner is a complete measurement solution for wood chips. in large industrial processes such as pulp, paper and bioenergy. It's the only instrument built to accurately measure the key parameters, such as moisture, weight and foreign objects, of all wood chips. Accurate wood chip flow mass and moisture measurements are essential when optimizing pulp mill and especially pulp cooking process.

Measuring the key parameters

Until recently, there has not been accurate way to measure the amount and properties of a wood chip raw material that is fed into the pulp-mill process. The patented dual X-ray technology reveals in an undefeated accuracy and in real-time a range of data about the organic material on the belt such as moisture, dry mass flow, weight and foreign objects. FlowScanner measurements are forwarded to DCS cooking control logic for real-time cooking process optimization.

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Moisture

Whether it is organic material or free water, snow, or ice, the FlowScanner delivers this fundamental property with high accuracy, in an instant.

 

 

Weight

The FlowScanner has two X-ray energy sources measuring across the full width of the belt, delivering wet mass flow rates. Together with the moisture measurement, the amount of bone-dry material in the process can be determined.

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Foreign objects

Inorganic high density materials, such as metal or rocks, produce different signals on the X-ray detectors. A size limit can be set so that larger objects trigger an alarm for removal whilst smaller items are recorded only for review purposes.

 

Dry mass

The dry fiber mass flow is a very important measurement parameter to achieve a stable digester control. When used together with the moisture content, it is possible to optimize the balance between dry fiber, white liquor and liquids.

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Precision woodchip dry mass flow and moisture improve the entire fiberline process

Increased material awareness

  • Measure wood chip mass flow and moisture with high accuracy

Accurate cooking

  • Optimize alkali to dry mass ratio in pulp cooking resulting to a more accurate cooking result


Greater yields and increased cost efficiency

  • With improved kappa variation control, more pulp can be produced from the same amount of wood
  • Substantial savings can be achieved through process efficiency

Reduced cooking chemical consumption

  • By leveraging extremely accurate dry mass measurement, correct amount of alkali can be charged to reach the targeted cooking result

Increase availability

  • Elimination of machine breaks when foreign objects can be removed from the wood chip flow


Increased process and production stability

  • Accurate, real-time dry mass information reduces variation in cooking, leading to better raw material utilization.
  • Improved kappa control lowers the target kappa value, allowing more pulp to be produced from the same amount of wood.

Smart FlowScanner

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