Paper Technology International 2024 - Journal - Page 26
PAPERTECHNOLOGYINTERNATIONAL
Maintaining consistently high Forming Fabric and Press
Felt permeability and dewatering capabilities increases
dryness of the sheet when leaving the Wet Section and
entering the Dryer Section.
•
Capability for programing Zone Cleaning, i.e. targeted
cleaning of contaminated zones in cross machine
direction.
•
Reduced number of sheet breaks, caused by
contaminated PMC.
•
ater mist elimination is achieved by the application of air
knives that contain water mist and contamination, which
is discharged through Venturi tubes and 昀椀nally into a
save all pan.
•
The system has a Park Position outside the machine,
which enables maintenance such as nozzle and 昀椀lter
changes during production.
Flexibility in cleaning parameters :
The ProJet ProCleanerTM is designed with maximum
昀氀exibility to adapt the system to every machine situation, paper
grade, furnish and required cleaning conditions. ProJet has
designed the pump station and control system to be able to choose
from the optimum set of parameters:
•
Traversing speed: can be synchronized with the
machine speed, so maximum coverage is achieved and
overlapping of nozzles is minimized
•
Cleaning width: the cleaning head is equipped with an
encoder, so the head can be sent to certain areas of
the felt that can then be cleaned more intensively for
a certain period of time, before returning to full width
cleaning. Customers have identi昀椀ed this as a problemsolving tool when other disturbances in the production
process lead to dirty streaks on the felt.
•
Pressure: The pump is designed to have a maximum
pressure of 240 bar (3,500psi). This allows the system
to run e.g. with higher pressure and smaller nozzles.
•
Nozzle size: The nozzle size is typically between
0.2-0.3mm, but can be varied to optimize the cleaning
ef昀椀ciency.
ROI calculator:
ProJet understands that each client application is unique.
For that reason, ProJet developed an automated ROI-calculator
that will be applied to each application and produced paper grade.
By contacting info@pro-jet.nl ProJet will perform a no-charge
ROI calculation of any Forming Fabric, Press Felt or Dryer Fabric
application. After inputting the process parameters provided by
customers, they will be provided with a ROI-Analysis of each
speci昀椀c application and investment justi昀椀cation. www.pro-jet.nl
•
Figure 2: ProJet’s ProCleaner in operation on a Top Former.
ProJet ProCleanerTM, traversing head shower
ProJet (www.pro-jet.nl), a company from the Netherlands,
has developed a revolutionary new cleaning technology, called
ProCleanerTM, using a multi nozzle traversing head, that has some
unique advantages over traditional HP showers. The ProCleanerTM
is located on the sheet side at an inside return roll.
The ProJet cleaning heads are equipped with ProMax
chemical spraying capability to enhance cleaning ef昀椀ciency even
further. ProMax can be added continuously or intermittently for the
Forming Fabrics of the middle layers of the board, which tend to
contaminate more. The ProJet Cleaners are furthermore equipped
with PLUS-mode, which guarantees highest possible cleaning
capacity if and when required.
Applying a ProJet ProCleanerTM guarantees consistently
clean Forming Fabrics and Press Felts from beginning to end of the
usable life, which deliver the following signi昀椀cant advantages over
conventional showers:
•
In most cases, conventional HP showers can be
switched off leading to water consumption savings of
up to 90%.
•
Lower power consumption of HP pump, up to 80%.
•
PMC life will be substantially improved.
•
Less shutdowns will be required for manual and
chemical cleaning, as well as less shutdowns for PMC
changes. This will provide increased manufacturing
productivity and pro昀椀tability.
Figure 3: Multiple ProJet pump stations for Forming Fabric,
Press Felt and Dryer Fabric Cleaners.
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