BENEFITS

Optimize the Wet End Process
Quantify Level of “Anionic Trash”

Identify Sources of Charge Distrubances

Control Charge Variability

Improve First Pass Retention

Stabilize White Water Consistency

Ensure Consistent Product Properties

Optimize Polymer/Coagulant Feeds

Increase Machine Production

STANDARD FEATURES

Three (3) Process Points Sampling Thickstock Sampling (Up To 5%)
Measures Charge and Charge Demand
Optional pH and Conductivity Sensors
Two Titrant Pumps, Two 8L Titrant Jugs
Low Maintenance, Improved Reliability
Web Access Controller w/ Web Pad
Ethernet Connectivity
Analog/Digital I/O’s

APPLICATIONS

Tissue
Fine Paper
Speciality Papers
Coated Papers
Linerboard
Newsprint

MEASUREMENT PRINCIPLE

The instrument incorporates streaming current technology to produce a measurement of electrokinetic charge (ionic & colloidal) using a sample obtained from various points in the process (Headbox, Coated Broke, Machine Chest, Tray Water, etc..). The sample is then titrated with a low molecular weight polymer of the opposite charge to bring the sample to a neutral charge. The amount of titrant consumed by the sample is used to quantify the level of charge (anionic or cationic) present in the furnish. The result, given as Charge Demand, can be used to effectively control the addition of cationic additives (starch, polymers, coagulants, etc..) in order to stabilize charge disturbances. Reducing or even eliminating charge variability stabilizes the wet end and helps optimize and reduce feed rates of expensive additives while also improving paper qualities.