ANDRITZ pulp washing

DD-Washer drum displacer washer

With almost 400 installations around the world, the ANDRITZ DD-Washer drum displacer washer is clearly preferred for all fiberline washing applications – brownstock, post-oxygen and bleaching. Its key benefits are its low operating costs, low emissions, and extremely high washing efficiency in a design that offers a flexible number of displacement washing stages in a single unit. The DD-Washer drum displacer washer is extremely gentle to fibers because no mechanical pressing is required for washing.

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COMPACT PRESS wash press

The ANDRITZ COMPACT PRESS wash press has been developed to maximize dilution-extraction, displacement and final pressing during the wash cycle. Feeding the COMPACT PRESS wash press at higher consistencies and making greater use of the drum surface provides superior washing capability within a small footprint, making it the best wash press on the market. It is built around the UniWash process concept. This concept has three main features: UniFeed pulp distribution system; high pulp consistency in the wash zone; and low wash liquor velocity. The COMPACT PRESS wash press is built to last, so it requires little maintenance - and when it does need to be serviced, it has several easy-maintenance features that make the task easy.

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GasFree Filter vacuum drum washer

The ANDRITZ GasFree Filter (aka GF-Filter) is an advanced vacuum drum filter washer. GF-Filter washers can be used for brownstock, post-oxygen, and bleach plant washing. Most typically, they are installed as a retrofit to an existing line, and can complement the washing process in special cases when only one stage of washing is required and the washing stage temperatures are not high. They are also suitable for greenfield installations in mills with special requirements (low capacities or non-wood pulps for example).