Retention Aid Control The main process benefits are a stable white water consistency and with this a stable consistency over the whole process, optimum retention at minimum chemical cost and a higher machine speed. Proven quality benefits are a more stable basis weight, increased filler content in the paper and a more uniform paper quality overall.
Retention Aid Control in Board and Linerboard In board and linerboard production, drainage is a critical issue. The main function of the applied chemicals, often referred to as retention aids, is to improve and stabilize drainage. BTG has therefore developed a special retention aid control concept for board and linerboard machines based on drainage measurement. The key benefit is a higher machine speed due to increased drainage on the wire.
Deaerator Control The main objectives are cost reduction due to less average chemical deaerator dosage, elimination of pinholes, reduction of deposits and drainage improvement. The precondition for starting a deaerator control loop is reliable and accurate online measurement results for free and dissolved gas levels in the process.
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