Papermaking Process Online Measurement and Control of Paper Ash Content
نویسنده
چکیده
Ash content of paper sheet is an important performance index in paper-making process. X-ray ash sensor based on the Fe-55 radiation principle can detect paper sheet ash content accurately. Here considering the influence of paper absolute dry fiber weight and moisture content, real online ash signal can be achieved by algorithm developing, data processing and signal compensation, and this signal is taken as feedback value to verify the ash content reference so that ash error is obtained to execute to controller which can regulate the valve opening of ash emulsion additive. Engineering project shows that the ash measurement and control system can make ash content be well maintained uniformly. Copyright © 2014 IFSA Publishing, S. L.
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