ProJet - Best cleaning practice on forming fabrics and press felts, Claus Robberts, Founder and CEO, ProJet b.v. - Paper Technology International 2025 FlipBook - Journal - Page 64

ProJet - Best cleaning practice on forming fabrics and press felts, Claus Robberts, Founder and CEO, ProJet b.v.

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 finally into a save all pan.
• The system has a Park Position outside the machine,
which enables maintenance such as nozzle and filter changes during production.
Flexibility in cleaning parameters :
The ProJet ProCleanerTM is designed with maximum
flexibility 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 identified 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 efficiency.
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
specific application and investment justification. 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 efficiency 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 significant 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 profitability.
Figure 3: Multiple ProJet pump stations for Forming Fabric,
Press Felt and Dryer Fabric Cleaners.
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