Valmet Bleaching Optimizer - Advanced method for high quality pulp

Features

Base calculations and controls to stabilize the process:

• Chemical dosage controls (if not in base automation)
• Washing water flow controls
• Production rate control
• Retention time calculations

Model based quality control (all bleaching stages):

• Kappa and/or brightness control
• pH controls
• Temperature controls

Management of changes:

• Production rate, pulp grade, and wood species

Management of disturbances:

• Process event tracking
• Retention time estimator
• D2C (Smart continuous measurement)

Benefits

• Final pulp brightness at the desired level with reduced variability
• Minimized loss in pulp strength
• Bleaching chemical savings
• Increased production
• Smooth process operation
• Fewer production disturbances
• Elimination of human errors
• Lower effluent load (COD, AOX)
• Help in operator work