In This Issue
Showering Optimization
Reducing Water Usage
Wet-End Set-Up
Moisture Streaks
Quick Links
Showering Optimization
shower
As we all know showering can effect many things on a paper machine. Operationally with breaks, holes moisture profiles, felt life etc....

Shower performance is effected by nozzle spacing, nozzle size.

  

Improper stroke rate and length can cause the following problems: poor felt performance, uneven moisture profiles, filling, felt wear, edge wear and streaking to name few.... 

 

Paper Trade Associates (PTA) can audit your showering systems and make recommendations to help improve your operation. 

  

  

 

 

 

Nozzle Sizing
Did you know that reducing your High Pressure Shower Nozzles from the standard .040" to a .030" diameter will reduce your shower water usage by 43%!!!! 
We have been qualifying many mills who have shower water clean enough to do so.
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Uhle Covers
Have you moved to seamed felts? If so, do you have Herringbone covers?
We can help.
Papermakers' Partner Newsletter
Greetings!

Wet-End and Showering improvements can great enhance your machine efficiency and bottom line. Paper Trade Associates can help you optimize your operation with our many years of experience and extensive resources to draw from. This newsletter will highlight potential opportunities that exist with your current machine configuration that with minor tweaks or modifications can net you improved results. 
 
Wet-End Set-Up Solutions
Proper Forming Board and Foil Blade design and set-up can greatly improve your sheet quality and machine efficiency. Most machines today run at speeds faster than the original design called for. Machines today run different basis weights and ranges. Today's modern multi-layer fabric designs effect drainage rates and sheet quality as well. All of these variables call for specialized services to optimize table set-ups. 
Ceramic
Paper Trade Associates (PTA) can survey your machine's wet-end and make recommendations based on your existing forming board and foil unit structures. With our years of experience we consider the machine speed range, basis weight ranges, foil spacing, forming board open area and foil angles.

Our goal is to use your existing structures and match replacement forming boards, trailing blades and foils to optimize your machine for better quality and efficiency. This way you can optimize with minimal costs. Typically replacement blades are made of poly and then replace with ceramic when optimum table set-up is proven.
 

A source for most of these streaks is from fan style lube or chemical showers. We have been very successful reducing sheet moisture variations by redesigning the operation of the fan uhle box lube showers and chemical addition showers.

 

In most cases resolution had been achieved by the addition of oscillation to existing showers. The primary issue is that fan nozzles DO NOT distribute fluids uniformly. The edges of a fan nozzle spray is much heavier than in the center. Thus when a fan shower pipe is designed the spray pattern of the nozzles overlap. These overlaps are where the moisture streaks are created.

 

Don't overlook press roll lube showers as well. Press roll lube shower can effect doctor blade wear and sheet moisture.

 

We can redesign virtually any shower arrangement to reduce moisture variations. Another benefit experienced has been greatly improved felt life (as much as 50% life improvement has been documented).

 

 

 
We greatly appreciate your past business. If you have any questions on the above or would like to set-up a meeting let us know.
 
Sincerely,
 
Paper Trade Associates

Chris Kellner 413-478-0560 Cell
Tom Morganstern 207-232-0685 Cell
This newsletter is a publication of Paper Trade Associates who is a sales/service agency who has extensive experience supplying products and services to the Paper and related Industries