In-Line, Real-Time, Chip Monitor, 1996 Pulping Conference Proceedings
William B. Stuart
John B. Auel
Virginia Tech
Improving chip quality increases pulp quality and yield. The best way to accomplish this is through process control at the point of manufacture. A continuous sampling method has been developed by Virginia Tech, based on the convential drum screen. This drum separates chips at a rate one ton an hour into the three gross categories of oversize, accepts, and pins/fines. Counterbalanced tip buckets weigh each size class and a computer keeps track of the number of cycles. This information is used to establish breakdown percentages of total weight sampled. When the percentge of acceptable chips drops below a predetermined level, it is known immediately. Corrective action can be implemented in a timely manner.
In-Line, Real-Time, Chip Monitor, 1996 Pulping Conference Proceedings
