A New Sensor Based Approach to Brown Stock Washer Optimization, 2015 PEERS Conference
ARE YOU A TAPPI MEMBER?
TAPPI members have exclusive, FREE access to technical conference papers and presentations six months after the conference in TAPPI's e-library. The e-Library offers:
- Unlimited access to more than 18,000+ documents
- Fast, robust search engine for fast search results
- Members get FREE access to conference proceedings, TAPPI JOURNAL articles, Paper360º articles, archived Solutions! articles, and much more
- View thousands of technical paper abstracts
- Ability to search by keyword, title, author, events or industry segment
*Technical papers and presentations are available for sale immediately following the conferences before the 6 month embargo period.
Purchase of electronic (downloadable) documents made at www.tappi.org by credit cards, followed by instant download cannot be cancelled. We do not offer refunds on electronic download documents.
The fundamental purpose of the brown stock washer operation has remained unchanged and that is to economically
remove the maximum amount of dissolved organic and soluble inorganic material present in the pulp mass at the
end of the washers while minimizing the amount of fresh or recycled water used. Dilution factor has been shown to
be one of the important variables that can be used to control this economic optimum. Expressing washer losses to
calculate washing efficiency has traditionally relied on measuring the conductivity either of the last stage filtrate or
occasionally of the pulp mat. Research has shown that this is not as accurate as it could be and a new method has
been developed that measures directly in the pulp mass in a continuous fashion. Combined with the important
measurement of feed consistency, the tonnage rate and washer loading is also properly managed and optimum
shower flows are calculated. A case study will be presented.