Effects of the Air in Stock at Paper Production and On-line Air Content Analyzer

Abstract

Increasing production rate and requirement for quality, efficiency and environmental load make higher attention on entrained air and its detrimental effects on the paper making process.
The air content measurement principle introduced here is based on attenuation of ultrasound by air bubbles. This ultrasound method is a continuous, on-line measurement which can provide optimal control of de aeration, trouble shooting as well as process development.