Optimization of enzymatic starch preparation and working station to filmpress including a case study, Wolfgang Schmölzer, Head of Technology Management and Plant Design, GAW technologies

PAPERTECHNOLOGYINTERNATIONAL
Figure 7 & 8 GAW starch preparation Model Eilenburg,
Germany
Working Stations
The working station is a circulatory system, via which
homogenized coating colour, surface starch and other coating
agents from the storage containers of the coating colour kitchen are
pumped via filters into working containers. They are then pumped
via further filters to the coating heads. Surplus coating colour is
returned to the working tank after passing the coating unit via return
lines.
In order to avoid disturbances in
the coating strokes (e.g. squeegee strips),
deaerators are used in addition to filter
systems. The deaerators remove air and
gas bubbles from the coating colour.
Depending on the design of the
coating heads, the working stations are
tailored to the application and adapted
with quality control instruments. A big
advantage of the GAW working stations
is the unique piping, which minimizes
the air content of the coating mass from
the outset and prevents the build-up of
agglomerates.
Figure 9:(Below) GAW working station.
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