Accomplishment and Significance of Optimal Chip Quality, 1994 Pulping Conference Proceedings
N. Hartler
Chip quality can for many purposes simply be measured as the chip fractional composition using the standard screening method. When continuous monitoring is desirable, optical techniques are available using image analysis to record size distributions with a conversion to fractional composition based on empirical relations.
For a complete quality assessment, information on bark content and bulk density is also needed.
The chip quality affects the processability, product yield and product quality in a number of different ways such as causing insufficient mass transfer, creating bridging during chip flow, causing increased liquor flow resistance, causing out-of-target wood charge in a digester or in a refiner and affecting product quality.
Accomplishment and Significance of Optimal Chip Quality, 1994 Pulping Conference Proceedings
